1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GLib Team and others 1997-1999. See the AUTHORS
22 * file for a list of people on the GLib Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GLib at ftp://ftp.gtk.org/pub/gtk/.
30 /* Here we provide G_GNUC_EXTENSION as an alias for __extension__,
31 * where this is valid. This allows for warningless compilation of
32 * "long long" types even in the presence of '-ansi -pedantic'. This
33 * of course should be with the other GCC-isms below, but then
34 * glibconfig.h wouldn't load cleanly and it is better to have that
35 * here, than in glibconfig.h.
37 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)
38 # define G_GNUC_EXTENSION __extension__
40 # define G_GNUC_EXTENSION
43 /* system specific config file glibconfig.h provides definitions for
44 * the extrema of many of the standard types. These are:
46 * G_MINSHORT, G_MAXSHORT
48 * G_MINLONG, G_MAXLONG
49 * G_MINFLOAT, G_MAXFLOAT
50 * G_MINDOUBLE, G_MAXDOUBLE
52 * It also provides the following typedefs:
59 * It defines the G_BYTE_ORDER symbol to one of G_*_ENDIAN (see later in
62 * And it provides a way to store and retrieve a `gint' in/from a `gpointer'.
63 * This is useful to pass an integer instead of a pointer to a callback.
65 * GINT_TO_POINTER (i), GUINT_TO_POINTER (i)
66 * GPOINTER_TO_INT (p), GPOINTER_TO_UINT (p)
68 * Finally, it provides the following wrappers to STDC functions:
70 * void g_memmove (gpointer dest, gconstpointer void *src, gulong count);
71 * A wrapper for STDC memmove, or an implementation, if memmove doesn't
72 * exist. The prototype looks like the above, give or take a const,
75 #include <glibconfig.h>
77 /* Define some mathematical constants that aren't available
78 * symbolically in some strict ISO C implementations.
80 #define G_E 2.7182818284590452354E0
81 #define G_LN2 6.9314718055994530942E-1
82 #define G_LN10 2.3025850929940456840E0
83 #define G_PI 3.14159265358979323846E0
84 #define G_PI_2 1.57079632679489661923E0
85 #define G_PI_4 0.78539816339744830962E0
86 #define G_SQRT2 1.4142135623730950488E0
88 /* include varargs functions for assertment macros
92 /* optionally feature DMALLOC memory allocation debugger
101 /* On native Win32, directory separator is the backslash, and search path
102 * separator is the semicolon.
104 #define G_DIR_SEPARATOR '\\'
105 #define G_DIR_SEPARATOR_S "\\"
106 #define G_SEARCHPATH_SEPARATOR ';'
107 #define G_SEARCHPATH_SEPARATOR_S ";"
109 #else /* !G_OS_WIN32 */
113 #define G_DIR_SEPARATOR '/'
114 #define G_DIR_SEPARATOR_S "/"
115 #define G_SEARCHPATH_SEPARATOR ':'
116 #define G_SEARCHPATH_SEPARATOR_S ":"
118 #endif /* !G_OS_WIN32 */
122 #endif /* __cplusplus */
125 /* Provide definitions for some commonly used macros.
126 * Some of them are only provided if they haven't already
127 * been defined. It is assumed that if they are already
128 * defined then the current definition is correct.
133 # else /* !__cplusplus */
134 # define NULL ((void*) 0)
135 # endif /* !__cplusplus */
143 #define TRUE (!FALSE)
147 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
150 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
153 #define ABS(a) (((a) < 0) ? -(a) : (a))
156 #define CLAMP(x, low, high) (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
158 #define G_STRINGIFY(macro_or_string) G_STRINGIFY_ARG (macro_or_string)
159 #define G_STRINGIFY_ARG(contents) #contents
161 /* provide a string identifying the current code position */
163 # define G_STRLOC __FILE__ ":" G_STRINGIFY (__LINE__) ":" __PRETTY_FUNCTION__ "()"
165 # define G_STRLOC __FILE__ ":" G_STRINGIFY (__LINE__)
169 /* Count the number of elements in an array. The array must be defined
170 * as such; using this with a dynamically allocated array will give
173 #define G_N_ELEMENTS(arr) (sizeof (arr) / sizeof ((arr)[0]))
175 /* Define G_VA_COPY() to do the right thing for copying va_list variables.
176 * glibconfig.h may have already defined G_VA_COPY as va_copy or __va_copy.
178 #if !defined (G_VA_COPY)
179 # if defined (__GNUC__) && defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
180 # define G_VA_COPY(ap1, ap2) (*(ap1) = *(ap2))
181 # elif defined (G_VA_COPY_AS_ARRAY)
182 # define G_VA_COPY(ap1, ap2) g_memmove ((ap1), (ap2), sizeof (va_list))
183 # else /* va_list is a pointer */
184 # define G_VA_COPY(ap1, ap2) ((ap1) = (ap2))
185 # endif /* va_list is a pointer */
186 #endif /* !G_VA_COPY */
189 /* Provide convenience macros for handling structure
190 * fields through their offsets.
192 #define G_STRUCT_OFFSET(struct_type, member) \
193 ((glong) ((guint8*) &((struct_type*) 0)->member))
194 #define G_STRUCT_MEMBER_P(struct_p, struct_offset) \
195 ((gpointer) ((guint8*) (struct_p) + (glong) (struct_offset)))
196 #define G_STRUCT_MEMBER(member_type, struct_p, struct_offset) \
197 (*(member_type*) G_STRUCT_MEMBER_P ((struct_p), (struct_offset)))
200 /* inlining hassle. for compilers that don't allow the `inline' keyword,
201 * mostly because of strict ANSI C compliance or dumbness, we try to fall
202 * back to either `__inline__' or `__inline'.
203 * we define G_CAN_INLINE, if the compiler seems to be actually
204 * *capable* to do function inlining, in which case inline function bodys
205 * do make sense. we also define G_INLINE_FUNC to properly export the
206 * function prototypes if no inlining can be performed.
207 * we special case most of the stuff, so inline functions can have a normal
208 * implementation by defining G_INLINE_FUNC to extern and G_CAN_INLINE to 1.
210 #ifndef G_INLINE_FUNC
211 # define G_CAN_INLINE 1
214 # if defined (__GNUC__) && defined (__STRICT_ANSI__)
216 # define inline __inline__
218 #else /* !G_HAVE_INLINE */
220 # if defined (G_HAVE___INLINE__)
221 # define inline __inline__
222 # else /* !inline && !__inline__ */
223 # if defined (G_HAVE___INLINE)
224 # define inline __inline
225 # else /* !inline && !__inline__ && !__inline */
226 # define inline /* don't inline, then */
227 # ifndef G_INLINE_FUNC
233 #ifndef G_INLINE_FUNC
236 # define G_INLINE_FUNC extern inline
239 # define G_INLINE_FUNC extern
241 # else /* !__GNUC__ */
243 # define G_INLINE_FUNC static inline
245 # define G_INLINE_FUNC extern
247 # endif /* !__GNUC__ */
248 #endif /* !G_INLINE_FUNC */
251 /* Provide simple macro statement wrappers (adapted from Perl):
252 * G_STMT_START { statements; } G_STMT_END;
253 * can be used as a single statement, as in
254 * if (x) G_STMT_START { ... } G_STMT_END; else ...
256 * For gcc we will wrap the statements within `({' and `})' braces.
257 * For SunOS they will be wrapped within `if (1)' and `else (void) 0',
258 * and otherwise within `do' and `while (0)'.
260 #if !(defined (G_STMT_START) && defined (G_STMT_END))
261 # if defined (__GNUC__) && !defined (__STRICT_ANSI__) && !defined (__cplusplus)
262 # define G_STMT_START (void)(
263 # define G_STMT_END )
265 # if (defined (sun) || defined (__sun__))
266 # define G_STMT_START if (1)
267 # define G_STMT_END else (void)0
269 # define G_STMT_START do
270 # define G_STMT_END while (0)
276 /* Provide macros to feature the GCC function attribute.
278 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
279 #define G_GNUC_PRINTF( format_idx, arg_idx ) \
280 __attribute__((format (printf, format_idx, arg_idx)))
281 #define G_GNUC_SCANF( format_idx, arg_idx ) \
282 __attribute__((format (scanf, format_idx, arg_idx)))
283 #define G_GNUC_FORMAT( arg_idx ) \
284 __attribute__((format_arg (arg_idx)))
285 #define G_GNUC_NORETURN \
286 __attribute__((noreturn))
287 #define G_GNUC_CONST \
288 __attribute__((const))
289 #define G_GNUC_UNUSED \
290 __attribute__((unused))
291 #else /* !__GNUC__ */
292 #define G_GNUC_PRINTF( format_idx, arg_idx )
293 #define G_GNUC_SCANF( format_idx, arg_idx )
294 #define G_GNUC_FORMAT( arg_idx )
295 #define G_GNUC_NORETURN
297 #define G_GNUC_UNUSED
298 #endif /* !__GNUC__ */
300 /* Wrap the gcc __PRETTY_FUNCTION__ and __FUNCTION__ variables with
301 * macros, so we can refer to them as strings unconditionally.
304 #define G_GNUC_FUNCTION __FUNCTION__
305 #define G_GNUC_PRETTY_FUNCTION __PRETTY_FUNCTION__
306 #else /* !__GNUC__ */
307 #define G_GNUC_FUNCTION ""
308 #define G_GNUC_PRETTY_FUNCTION ""
309 #endif /* !__GNUC__ */
311 /* we try to provide a usefull equivalent for ATEXIT if it is
312 * not defined, but use is actually abandoned. people should
313 * use g_atexit() instead.
316 # define ATEXIT(proc) g_ATEXIT(proc)
318 # define G_NATIVE_ATEXIT
321 /* Hacker macro to place breakpoints for elected machines.
322 * Actual use is strongly deprecated of course ;)
324 #if defined (__i386__) && defined (__GNUC__) && __GNUC__ >= 2
325 #define G_BREAKPOINT() G_STMT_START{ __asm__ __volatile__ ("int $03"); }G_STMT_END
326 #elif defined (__alpha__) && defined (__GNUC__) && __GNUC__ >= 2
327 #define G_BREAKPOINT() G_STMT_START{ __asm__ __volatile__ ("bpt"); }G_STMT_END
328 #else /* !__i386__ && !__alpha__ */
329 #define G_BREAKPOINT()
330 #endif /* __i386__ */
333 /* Provide macros for easily allocating memory. The macros
334 * will cast the allocated memory to the specified type
335 * in order to avoid compiler warnings. (Makes the code neater).
339 # define g_new(type, count) (ALLOC (type, count))
340 # define g_new0(type, count) (CALLOC (type, count))
341 # define g_renew(type, mem, count) (REALLOC (mem, type, count))
342 #else /* __DMALLOC_H__ */
343 # define g_new(type, count) \
344 ((type *) g_malloc ((unsigned) sizeof (type) * (count)))
345 # define g_new0(type, count) \
346 ((type *) g_malloc0 ((unsigned) sizeof (type) * (count)))
347 # define g_renew(type, mem, count) \
348 ((type *) g_realloc (mem, (unsigned) sizeof (type) * (count)))
349 #endif /* __DMALLOC_H__ */
351 #define g_mem_chunk_create(type, pre_alloc, alloc_type) ( \
352 g_mem_chunk_new (#type " mem chunks (" #pre_alloc ")", \
354 sizeof (type) * (pre_alloc), \
357 #define g_chunk_new(type, chunk) ( \
358 (type *) g_mem_chunk_alloc (chunk) \
360 #define g_chunk_new0(type, chunk) ( \
361 (type *) g_mem_chunk_alloc0 (chunk) \
363 #define g_chunk_free(mem, mem_chunk) G_STMT_START { \
364 g_mem_chunk_free ((mem_chunk), (mem)); \
368 /* Provide macros for error handling. The "assert" macros will
369 * exit on failure. The "return" macros will exit the current
370 * function. Two different definitions are given for the macros
371 * if G_DISABLE_ASSERT is not defined, in order to support gcc's
372 * __PRETTY_FUNCTION__ capability.
375 #ifdef G_DISABLE_ASSERT
377 #define g_assert(expr)
378 #define g_assert_not_reached()
380 #else /* !G_DISABLE_ASSERT */
384 #define g_assert(expr) G_STMT_START{ \
386 g_log (G_LOG_DOMAIN, \
388 "file %s: line %d (%s): assertion failed: (%s)", \
391 __PRETTY_FUNCTION__, \
394 #define g_assert_not_reached() G_STMT_START{ \
395 g_log (G_LOG_DOMAIN, \
397 "file %s: line %d (%s): should not be reached", \
400 __PRETTY_FUNCTION__); }G_STMT_END
402 #else /* !__GNUC__ */
404 #define g_assert(expr) G_STMT_START{ \
406 g_log (G_LOG_DOMAIN, \
408 "file %s: line %d: assertion failed: (%s)", \
413 #define g_assert_not_reached() G_STMT_START{ \
414 g_log (G_LOG_DOMAIN, \
416 "file %s: line %d: should not be reached", \
418 __LINE__); }G_STMT_END
420 #endif /* __GNUC__ */
422 #endif /* !G_DISABLE_ASSERT */
425 #ifdef G_DISABLE_CHECKS
427 #define g_return_if_fail(expr)
428 #define g_return_val_if_fail(expr,val)
430 #else /* !G_DISABLE_CHECKS */
434 #define g_return_if_fail(expr) G_STMT_START{ \
437 g_log (G_LOG_DOMAIN, \
438 G_LOG_LEVEL_CRITICAL, \
439 "file %s: line %d (%s): assertion `%s' failed.", \
442 __PRETTY_FUNCTION__, \
447 #define g_return_val_if_fail(expr,val) G_STMT_START{ \
450 g_log (G_LOG_DOMAIN, \
451 G_LOG_LEVEL_CRITICAL, \
452 "file %s: line %d (%s): assertion `%s' failed.", \
455 __PRETTY_FUNCTION__, \
460 #else /* !__GNUC__ */
462 #define g_return_if_fail(expr) G_STMT_START{ \
465 g_log (G_LOG_DOMAIN, \
466 G_LOG_LEVEL_CRITICAL, \
467 "file %s: line %d: assertion `%s' failed.", \
474 #define g_return_val_if_fail(expr, val) G_STMT_START{ \
477 g_log (G_LOG_DOMAIN, \
478 G_LOG_LEVEL_CRITICAL, \
479 "file %s: line %d: assertion `%s' failed.", \
486 #endif /* !__GNUC__ */
488 #endif /* !G_DISABLE_CHECKS */
491 /* Provide type definitions for commonly used types.
492 * These are useful because a "gint8" can be adjusted
493 * to be 1 byte (8 bits) on all platforms. Similarly and
494 * more importantly, "gint32" can be adjusted to be
495 * 4 bytes (32 bits) on all platforms.
499 typedef short gshort;
502 typedef gint gboolean;
503 typedef gchar* gstring;
505 typedef unsigned char guchar;
506 typedef unsigned short gushort;
507 typedef unsigned long gulong;
508 typedef unsigned int guint;
510 #define G_GSHORT_FORMAT "hi"
511 #define G_GUSHORT_FORMAT "hu"
512 #define G_GINT_FORMAT "i"
513 #define G_GUINT_FORMAT "u"
514 #define G_GLONG_FORMAT "li"
515 #define G_GULONG_FORMAT "lu"
517 typedef float gfloat;
518 typedef double gdouble;
520 /* HAVE_LONG_DOUBLE doesn't work correctly on all platforms.
521 * Since gldouble isn't used anywhere, just disable it for now */
524 #ifdef HAVE_LONG_DOUBLE
525 typedef long double gldouble;
526 #else /* HAVE_LONG_DOUBLE */
527 typedef double gldouble;
528 #endif /* HAVE_LONG_DOUBLE */
531 typedef void* gpointer;
532 typedef const void *gconstpointer;
535 typedef gint32 gssize;
536 typedef guint32 gsize;
537 typedef guint32 GQuark;
538 typedef gint32 GTime;
541 /* Portable endian checks and conversions
543 * glibconfig.h defines G_BYTE_ORDER which expands to one of
546 #define G_LITTLE_ENDIAN 1234
547 #define G_BIG_ENDIAN 4321
548 #define G_PDP_ENDIAN 3412 /* unused, need specific PDP check */
551 /* Basic bit swapping functions
553 #define GUINT16_SWAP_LE_BE_CONSTANT(val) ((guint16) ( \
554 (((guint16) (val) & (guint16) 0x00ffU) << 8) | \
555 (((guint16) (val) & (guint16) 0xff00U) >> 8)))
556 #define GUINT32_SWAP_LE_BE_CONSTANT(val) ((guint32) ( \
557 (((guint32) (val) & (guint32) 0x000000ffU) << 24) | \
558 (((guint32) (val) & (guint32) 0x0000ff00U) << 8) | \
559 (((guint32) (val) & (guint32) 0x00ff0000U) >> 8) | \
560 (((guint32) (val) & (guint32) 0xff000000U) >> 24)))
562 /* Intel specific stuff for speed
564 #if defined (__i386__) && defined (__GNUC__) && __GNUC__ >= 2
565 # define GUINT16_SWAP_LE_BE_X86(val) \
567 ({ register guint16 __v; \
568 if (__builtin_constant_p (val)) \
569 __v = GUINT16_SWAP_LE_BE_CONSTANT (val); \
571 __asm__ __const__ ("rorw $8, %w0" \
573 : "0" ((guint16) (val))); \
575 # define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_X86 (val))
576 # if !defined(__i486__) && !defined(__i586__) \
577 && !defined(__pentium__) && !defined(__i686__) && !defined(__pentiumpro__)
578 # define GUINT32_SWAP_LE_BE_X86(val) \
580 ({ register guint32 __v; \
581 if (__builtin_constant_p (val)) \
582 __v = GUINT32_SWAP_LE_BE_CONSTANT (val); \
584 __asm__ __const__ ("rorw $8, %w0\n\t" \
588 : "0" ((guint32) (val))); \
590 # else /* 486 and higher has bswap */
591 # define GUINT32_SWAP_LE_BE_X86(val) \
593 ({ register guint32 __v; \
594 if (__builtin_constant_p (val)) \
595 __v = GUINT32_SWAP_LE_BE_CONSTANT (val); \
597 __asm__ __const__ ("bswap %0" \
599 : "0" ((guint32) (val))); \
601 # endif /* processor specific 32-bit stuff */
602 # define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_X86 (val))
603 #else /* !__i386__ */
604 # define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
605 # define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))
606 #endif /* __i386__ */
609 # define GUINT64_SWAP_LE_BE_CONSTANT(val) ((guint64) ( \
610 (((guint64) (val) & \
611 (guint64) G_GINT64_CONSTANT(0x00000000000000ffU)) << 56) | \
612 (((guint64) (val) & \
613 (guint64) G_GINT64_CONSTANT(0x000000000000ff00U)) << 40) | \
614 (((guint64) (val) & \
615 (guint64) G_GINT64_CONSTANT(0x0000000000ff0000U)) << 24) | \
616 (((guint64) (val) & \
617 (guint64) G_GINT64_CONSTANT(0x00000000ff000000U)) << 8) | \
618 (((guint64) (val) & \
619 (guint64) G_GINT64_CONSTANT(0x000000ff00000000U)) >> 8) | \
620 (((guint64) (val) & \
621 (guint64) G_GINT64_CONSTANT(0x0000ff0000000000U)) >> 24) | \
622 (((guint64) (val) & \
623 (guint64) G_GINT64_CONSTANT(0x00ff000000000000U)) >> 40) | \
624 (((guint64) (val) & \
625 (guint64) G_GINT64_CONSTANT(0xff00000000000000U)) >> 56)))
626 # if defined (__i386__) && defined (__GNUC__) && __GNUC__ >= 2
627 # define GUINT64_SWAP_LE_BE_X86(val) \
629 ({ union { guint64 __ll; \
630 guint32 __l[2]; } __r; \
631 if (__builtin_constant_p (val)) \
632 __r.__ll = GUINT64_SWAP_LE_BE_CONSTANT (val); \
635 union { guint64 __ll; \
636 guint32 __l[2]; } __w; \
637 __w.__ll = ((guint64) val); \
638 __r.__l[0] = GUINT32_SWAP_LE_BE (__w.__l[1]); \
639 __r.__l[1] = GUINT32_SWAP_LE_BE (__w.__l[0]); \
642 # define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_X86 (val))
643 # else /* !__i386__ */
644 # define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT(val))
648 #define GUINT16_SWAP_LE_PDP(val) ((guint16) (val))
649 #define GUINT16_SWAP_BE_PDP(val) (GUINT16_SWAP_LE_BE (val))
650 #define GUINT32_SWAP_LE_PDP(val) ((guint32) ( \
651 (((guint32) (val) & (guint32) 0x0000ffffU) << 16) | \
652 (((guint32) (val) & (guint32) 0xffff0000U) >> 16)))
653 #define GUINT32_SWAP_BE_PDP(val) ((guint32) ( \
654 (((guint32) (val) & (guint32) 0x00ff00ffU) << 8) | \
655 (((guint32) (val) & (guint32) 0xff00ff00U) >> 8)))
657 /* The G*_TO_?E() macros are defined in glibconfig.h.
658 * The transformation is symmetric, so the FROM just maps to the TO.
660 #define GINT16_FROM_LE(val) (GINT16_TO_LE (val))
661 #define GUINT16_FROM_LE(val) (GUINT16_TO_LE (val))
662 #define GINT16_FROM_BE(val) (GINT16_TO_BE (val))
663 #define GUINT16_FROM_BE(val) (GUINT16_TO_BE (val))
664 #define GINT32_FROM_LE(val) (GINT32_TO_LE (val))
665 #define GUINT32_FROM_LE(val) (GUINT32_TO_LE (val))
666 #define GINT32_FROM_BE(val) (GINT32_TO_BE (val))
667 #define GUINT32_FROM_BE(val) (GUINT32_TO_BE (val))
670 #define GINT64_FROM_LE(val) (GINT64_TO_LE (val))
671 #define GUINT64_FROM_LE(val) (GUINT64_TO_LE (val))
672 #define GINT64_FROM_BE(val) (GINT64_TO_BE (val))
673 #define GUINT64_FROM_BE(val) (GUINT64_TO_BE (val))
676 #define GLONG_FROM_LE(val) (GLONG_TO_LE (val))
677 #define GULONG_FROM_LE(val) (GULONG_TO_LE (val))
678 #define GLONG_FROM_BE(val) (GLONG_TO_BE (val))
679 #define GULONG_FROM_BE(val) (GULONG_TO_BE (val))
681 #define GINT_FROM_LE(val) (GINT_TO_LE (val))
682 #define GUINT_FROM_LE(val) (GUINT_TO_LE (val))
683 #define GINT_FROM_BE(val) (GINT_TO_BE (val))
684 #define GUINT_FROM_BE(val) (GUINT_TO_BE (val))
687 /* Portable versions of host-network order stuff
689 #define g_ntohl(val) (GUINT32_FROM_BE (val))
690 #define g_ntohs(val) (GUINT16_FROM_BE (val))
691 #define g_htonl(val) (GUINT32_TO_BE (val))
692 #define g_htons(val) (GUINT16_TO_BE (val))
696 * we prefix variable declarations so they can
697 * properly get exported in windows dlls.
700 # ifdef GLIB_COMPILATION
701 # define GLIB_VAR __declspec(dllexport)
702 # else /* !GLIB_COMPILATION */
703 # define GLIB_VAR extern __declspec(dllimport)
704 # endif /* !GLIB_COMPILATION */
705 #else /* !G_OS_WIN32 */
706 # define GLIB_VAR extern
707 #endif /* !G_OS_WIN32 */
709 GLIB_VAR const guint glib_major_version;
710 GLIB_VAR const guint glib_minor_version;
711 GLIB_VAR const guint glib_micro_version;
712 GLIB_VAR const guint glib_interface_age;
713 GLIB_VAR const guint glib_binary_age;
715 #define GLIB_CHECK_VERSION(major,minor,micro) \
716 (GLIB_MAJOR_VERSION > (major) || \
717 (GLIB_MAJOR_VERSION == (major) && GLIB_MINOR_VERSION > (minor)) || \
718 (GLIB_MAJOR_VERSION == (major) && GLIB_MINOR_VERSION == (minor) && \
719 GLIB_MICRO_VERSION >= (micro)))
721 /* Forward declarations of glib types.
723 typedef struct _GAllocator GAllocator;
724 typedef struct _GArray GArray;
725 typedef struct _GByteArray GByteArray;
726 typedef struct _GCache GCache;
727 typedef struct _GCompletion GCompletion;
728 typedef struct _GData GData;
729 typedef struct _GDebugKey GDebugKey;
730 typedef union _GDoubleIEEE754 GDoubleIEEE754;
731 typedef union _GFloatIEEE754 GFloatIEEE754;
732 typedef struct _GHashTable GHashTable;
733 typedef struct _GHook GHook;
734 typedef struct _GHookList GHookList;
735 typedef struct _GList GList;
736 typedef struct _GMemChunk GMemChunk;
737 typedef struct _GNode GNode;
738 typedef struct _GPtrArray GPtrArray;
739 typedef struct _GQueue GQueue;
740 typedef struct _GRand GRand;
741 typedef struct _GRelation GRelation;
742 typedef struct _GScanner GScanner;
743 typedef struct _GScannerConfig GScannerConfig;
744 typedef struct _GSList GSList;
745 typedef struct _GString GString;
746 typedef struct _GStringChunk GStringChunk;
747 typedef struct _GTimer GTimer;
748 typedef struct _GTrashStack GTrashStack;
749 typedef struct _GTree GTree;
750 typedef struct _GTuples GTuples;
751 typedef union _GTokenValue GTokenValue;
752 typedef struct _GIOChannel GIOChannel;
754 /* Tree traverse flags */
757 G_TRAVERSE_LEAFS = 1 << 0,
758 G_TRAVERSE_NON_LEAFS = 1 << 1,
759 G_TRAVERSE_ALL = G_TRAVERSE_LEAFS | G_TRAVERSE_NON_LEAFS,
760 G_TRAVERSE_MASK = 0x03
763 /* Tree traverse orders */
772 /* Log level shift offset for user defined
773 * log levels (0-7 are used by GLib).
775 #define G_LOG_LEVEL_USER_SHIFT (8)
777 /* Glib log levels and flags.
782 G_LOG_FLAG_RECURSION = 1 << 0,
783 G_LOG_FLAG_FATAL = 1 << 1,
785 /* GLib log levels */
786 G_LOG_LEVEL_ERROR = 1 << 2, /* always fatal */
787 G_LOG_LEVEL_CRITICAL = 1 << 3,
788 G_LOG_LEVEL_WARNING = 1 << 4,
789 G_LOG_LEVEL_MESSAGE = 1 << 5,
790 G_LOG_LEVEL_INFO = 1 << 6,
791 G_LOG_LEVEL_DEBUG = 1 << 7,
793 G_LOG_LEVEL_MASK = ~(G_LOG_FLAG_RECURSION | G_LOG_FLAG_FATAL)
796 /* GLib log levels that are considered fatal by default */
797 #define G_LOG_FATAL_MASK (G_LOG_FLAG_RECURSION | G_LOG_LEVEL_ERROR)
800 typedef gpointer (*GCacheNewFunc) (gpointer key);
801 typedef gpointer (*GCacheDupFunc) (gpointer value);
802 typedef void (*GCacheDestroyFunc) (gpointer value);
803 typedef gint (*GCompareFunc) (gconstpointer a,
805 typedef gchar* (*GCompletionFunc) (gpointer);
806 typedef void (*GDestroyNotify) (gpointer data);
807 typedef void (*GDataForeachFunc) (GQuark key_id,
810 typedef void (*GFunc) (gpointer data,
812 typedef guint (*GHashFunc) (gconstpointer key);
813 typedef void (*GFreeFunc) (gpointer data);
814 typedef void (*GHFunc) (gpointer key,
817 typedef gboolean (*GHRFunc) (gpointer key,
820 typedef gint (*GHookCompareFunc) (GHook *new_hook,
822 typedef gboolean (*GHookFindFunc) (GHook *hook,
824 typedef void (*GHookMarshaller) (GHook *hook,
826 typedef gboolean (*GHookCheckMarshaller) (GHook *hook,
828 typedef void (*GHookFunc) (gpointer data);
829 typedef gboolean (*GHookCheckFunc) (gpointer data);
830 typedef void (*GHookFreeFunc) (GHookList *hook_list,
832 typedef void (*GLogFunc) (const gchar *log_domain,
833 GLogLevelFlags log_level,
834 const gchar *message,
836 typedef gboolean (*GNodeTraverseFunc) (GNode *node,
838 typedef void (*GNodeForeachFunc) (GNode *node,
840 typedef void (*GScannerMsgFunc) (GScanner *scanner,
843 typedef gint (*GTraverseFunc) (gpointer key,
846 typedef void (*GVoidFunc) (void);
910 /* IEEE Standard 754 Single Precision Storage Format (gfloat):
913 * +--------+---------------+---------------+
914 * | s 1bit | e[30:23] 8bit | f[22:0] 23bit |
915 * +--------+---------------+---------------+
916 * B0------------------->B1------->B2-->B3-->
918 * IEEE Standard 754 Double Precision Storage Format (gdouble):
920 * 63 62 52 51 32 31 0
921 * +--------+----------------+----------------+ +---------------+
922 * | s 1bit | e[62:52] 11bit | f[51:32] 20bit | | f[31:0] 32bit |
923 * +--------+----------------+----------------+ +---------------+
924 * B0--------------->B1---------->B2--->B3----> B4->B5->B6->B7->
926 /* subtract from biased_exponent to form base2 exponent (normal numbers) */
927 #define G_IEEE754_FLOAT_BIAS (127)
928 #define G_IEEE754_DOUBLE_BIAS (1023)
929 /* multiply with base2 exponent to get base10 exponent (nomal numbers) */
930 #define G_LOG_2_BASE_10 (0.30102999566398119521)
931 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
937 guint biased_exponent : 8;
941 union _GDoubleIEEE754
945 guint mantissa_low : 32;
946 guint mantissa_high : 20;
947 guint biased_exponent : 11;
951 #elif G_BYTE_ORDER == G_BIG_ENDIAN
957 guint biased_exponent : 8;
961 union _GDoubleIEEE754
966 guint biased_exponent : 11;
967 guint mantissa_high : 20;
968 guint mantissa_low : 32;
971 #else /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */
972 #error unknown ENDIAN type
973 #endif /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */
976 /* Doubly linked lists
978 void g_list_push_allocator (GAllocator *allocator);
979 void g_list_pop_allocator (void);
980 GList* g_list_alloc (void);
981 void g_list_free (GList *list);
982 void g_list_free_1 (GList *list);
983 GList* g_list_append (GList *list,
985 GList* g_list_prepend (GList *list,
987 GList* g_list_insert (GList *list,
990 GList* g_list_insert_sorted (GList *list,
993 GList* g_list_concat (GList *list1,
995 GList* g_list_remove (GList *list,
997 GList* g_list_remove_link (GList *list,
999 GList* g_list_delete_link (GList *list,
1001 GList* g_list_reverse (GList *list);
1002 GList* g_list_copy (GList *list);
1003 GList* g_list_nth (GList *list,
1005 GList* g_list_find (GList *list,
1006 gconstpointer data);
1007 GList* g_list_find_custom (GList *list,
1010 gint g_list_position (GList *list,
1012 gint g_list_index (GList *list,
1013 gconstpointer data);
1014 GList* g_list_last (GList *list);
1015 GList* g_list_first (GList *list);
1016 guint g_list_length (GList *list);
1017 void g_list_foreach (GList *list,
1019 gpointer user_data);
1020 GList* g_list_sort (GList *list,
1021 GCompareFunc compare_func);
1022 gpointer g_list_nth_data (GList *list,
1024 #define g_list_previous(list) ((list) ? (((GList *)(list))->prev) : NULL)
1025 #define g_list_next(list) ((list) ? (((GList *)(list))->next) : NULL)
1028 /* Singly linked lists
1030 void g_slist_push_allocator (GAllocator *allocator);
1031 void g_slist_pop_allocator (void);
1032 GSList* g_slist_alloc (void);
1033 void g_slist_free (GSList *list);
1034 void g_slist_free_1 (GSList *list);
1035 GSList* g_slist_append (GSList *list,
1037 GSList* g_slist_prepend (GSList *list,
1039 GSList* g_slist_insert (GSList *list,
1042 GSList* g_slist_insert_sorted (GSList *list,
1045 GSList* g_slist_insert_before (GSList *slist,
1048 GSList* g_slist_concat (GSList *list1,
1050 GSList* g_slist_remove (GSList *list,
1051 gconstpointer data);
1052 GSList* g_slist_remove_link (GSList *list,
1054 GSList* g_slist_delete_link (GSList *list,
1056 GSList* g_slist_reverse (GSList *list);
1057 GSList* g_slist_copy (GSList *list);
1058 GSList* g_slist_nth (GSList *list,
1060 GSList* g_slist_find (GSList *list,
1061 gconstpointer data);
1062 GSList* g_slist_find_custom (GSList *list,
1065 gint g_slist_position (GSList *list,
1067 gint g_slist_index (GSList *list,
1068 gconstpointer data);
1069 GSList* g_slist_last (GSList *list);
1070 guint g_slist_length (GSList *list);
1071 void g_slist_foreach (GSList *list,
1073 gpointer user_data);
1074 GSList* g_slist_sort (GSList *list,
1075 GCompareFunc compare_func);
1076 gpointer g_slist_nth_data (GSList *list,
1078 #define g_slist_next(slist) ((slist) ? (((GSList *)(slist))->next) : NULL)
1083 GQueue* g_queue_new (void);
1084 void g_queue_free (GQueue *queue);
1085 void g_queue_push_head (GQueue *queue,
1087 void g_queue_push_tail (GQueue *queue,
1089 gpointer g_queue_pop_head (GQueue *queue);
1090 gpointer g_queue_pop_tail (GQueue *queue);
1091 gboolean g_queue_is_empty (GQueue *queue);
1092 gpointer g_queue_peek_head (GQueue *queue);
1093 gpointer g_queue_peek_tail (GQueue *queue);
1094 void g_queue_push_head_link (GQueue *queue,
1096 void g_queue_push_tail_link (GQueue *queue,
1098 GList* g_queue_pop_head_link (GQueue *queue);
1099 GList* g_queue_pop_tail_link (GQueue *queue);
1103 GHashTable* g_hash_table_new (GHashFunc hash_func,
1104 GCompareFunc key_compare_func);
1105 void g_hash_table_destroy (GHashTable *hash_table);
1106 void g_hash_table_insert (GHashTable *hash_table,
1109 void g_hash_table_remove (GHashTable *hash_table,
1111 gpointer g_hash_table_lookup (GHashTable *hash_table,
1113 gboolean g_hash_table_lookup_extended(GHashTable *hash_table,
1114 gconstpointer lookup_key,
1117 void g_hash_table_foreach (GHashTable *hash_table,
1119 gpointer user_data);
1120 guint g_hash_table_foreach_remove (GHashTable *hash_table,
1122 gpointer user_data);
1123 guint g_hash_table_size (GHashTable *hash_table);
1125 /* The following two functions are deprecated and will be removed in
1126 * the next major release. They do no good. */
1127 void g_hash_table_freeze (GHashTable *hash_table);
1128 void g_hash_table_thaw (GHashTable *hash_table);
1132 GCache* g_cache_new (GCacheNewFunc value_new_func,
1133 GCacheDestroyFunc value_destroy_func,
1134 GCacheDupFunc key_dup_func,
1135 GCacheDestroyFunc key_destroy_func,
1136 GHashFunc hash_key_func,
1137 GHashFunc hash_value_func,
1138 GCompareFunc key_compare_func);
1139 void g_cache_destroy (GCache *cache);
1140 gpointer g_cache_insert (GCache *cache,
1142 void g_cache_remove (GCache *cache,
1143 gconstpointer value);
1144 void g_cache_key_foreach (GCache *cache,
1146 gpointer user_data);
1147 void g_cache_value_foreach (GCache *cache,
1149 gpointer user_data);
1152 /* Balanced binary trees
1154 GTree* g_tree_new (GCompareFunc key_compare_func);
1155 void g_tree_destroy (GTree *tree);
1156 void g_tree_insert (GTree *tree,
1159 void g_tree_remove (GTree *tree,
1161 gpointer g_tree_lookup (GTree *tree,
1163 void g_tree_traverse (GTree *tree,
1164 GTraverseFunc traverse_func,
1165 GTraverseType traverse_type,
1167 gpointer g_tree_search (GTree *tree,
1168 GCompareFunc search_func,
1169 gconstpointer data);
1170 gint g_tree_height (GTree *tree);
1171 gint g_tree_nnodes (GTree *tree);
1175 /* N-way tree implementation
1186 #define G_NODE_IS_ROOT(node) (((GNode*) (node))->parent == NULL && \
1187 ((GNode*) (node))->prev == NULL && \
1188 ((GNode*) (node))->next == NULL)
1189 #define G_NODE_IS_LEAF(node) (((GNode*) (node))->children == NULL)
1191 void g_node_push_allocator (GAllocator *allocator);
1192 void g_node_pop_allocator (void);
1193 GNode* g_node_new (gpointer data);
1194 void g_node_destroy (GNode *root);
1195 void g_node_unlink (GNode *node);
1196 GNode* g_node_copy (GNode *node);
1197 GNode* g_node_insert (GNode *parent,
1200 GNode* g_node_insert_before (GNode *parent,
1203 GNode* g_node_prepend (GNode *parent,
1205 guint g_node_n_nodes (GNode *root,
1206 GTraverseFlags flags);
1207 GNode* g_node_get_root (GNode *node);
1208 gboolean g_node_is_ancestor (GNode *node,
1210 guint g_node_depth (GNode *node);
1211 GNode* g_node_find (GNode *root,
1212 GTraverseType order,
1213 GTraverseFlags flags,
1216 /* convenience macros */
1217 #define g_node_append(parent, node) \
1218 g_node_insert_before ((parent), NULL, (node))
1219 #define g_node_insert_data(parent, position, data) \
1220 g_node_insert ((parent), (position), g_node_new (data))
1221 #define g_node_insert_data_before(parent, sibling, data) \
1222 g_node_insert_before ((parent), (sibling), g_node_new (data))
1223 #define g_node_prepend_data(parent, data) \
1224 g_node_prepend ((parent), g_node_new (data))
1225 #define g_node_append_data(parent, data) \
1226 g_node_insert_before ((parent), NULL, g_node_new (data))
1228 /* traversal function, assumes that `node' is root
1229 * (only traverses `node' and its subtree).
1230 * this function is just a high level interface to
1231 * low level traversal functions, optimized for speed.
1233 void g_node_traverse (GNode *root,
1234 GTraverseType order,
1235 GTraverseFlags flags,
1237 GNodeTraverseFunc func,
1240 /* return the maximum tree height starting with `node', this is an expensive
1241 * operation, since we need to visit all nodes. this could be shortened by
1242 * adding `guint height' to struct _GNode, but then again, this is not very
1243 * often needed, and would make g_node_insert() more time consuming.
1245 guint g_node_max_height (GNode *root);
1247 void g_node_children_foreach (GNode *node,
1248 GTraverseFlags flags,
1249 GNodeForeachFunc func,
1251 void g_node_reverse_children (GNode *node);
1252 guint g_node_n_children (GNode *node);
1253 GNode* g_node_nth_child (GNode *node,
1255 GNode* g_node_last_child (GNode *node);
1256 GNode* g_node_find_child (GNode *node,
1257 GTraverseFlags flags,
1259 gint g_node_child_position (GNode *node,
1261 gint g_node_child_index (GNode *node,
1264 GNode* g_node_first_sibling (GNode *node);
1265 GNode* g_node_last_sibling (GNode *node);
1267 #define g_node_prev_sibling(node) ((node) ? \
1268 ((GNode*) (node))->prev : NULL)
1269 #define g_node_next_sibling(node) ((node) ? \
1270 ((GNode*) (node))->next : NULL)
1271 #define g_node_first_child(node) ((node) ? \
1272 ((GNode*) (node))->children : NULL)
1275 /* Callback maintenance functions
1277 #define G_HOOK_FLAG_USER_SHIFT (4)
1280 G_HOOK_FLAG_ACTIVE = 1 << 0,
1281 G_HOOK_FLAG_IN_CALL = 1 << 1,
1282 G_HOOK_FLAG_MASK = 0x0f
1285 #define G_HOOK_DEFERRED_DESTROY ((GHookFreeFunc) 0x01)
1293 GMemChunk *hook_memchunk;
1294 GHookFreeFunc hook_free; /* virtual function */
1295 GHookFreeFunc hook_destroy; /* virtual function */
1307 GDestroyNotify destroy;
1310 #define G_HOOK_ACTIVE(hook) ((((GHook*) hook)->flags & \
1311 G_HOOK_FLAG_ACTIVE) != 0)
1312 #define G_HOOK_IN_CALL(hook) ((((GHook*) hook)->flags & \
1313 G_HOOK_FLAG_IN_CALL) != 0)
1314 #define G_HOOK_IS_VALID(hook) (((GHook*) hook)->hook_id != 0 && \
1315 G_HOOK_ACTIVE (hook))
1316 #define G_HOOK_IS_UNLINKED(hook) (((GHook*) hook)->next == NULL && \
1317 ((GHook*) hook)->prev == NULL && \
1318 ((GHook*) hook)->hook_id == 0 && \
1319 ((GHook*) hook)->ref_count == 0)
1321 void g_hook_list_init (GHookList *hook_list,
1323 void g_hook_list_clear (GHookList *hook_list);
1324 GHook* g_hook_alloc (GHookList *hook_list);
1325 void g_hook_free (GHookList *hook_list,
1327 void g_hook_ref (GHookList *hook_list,
1329 void g_hook_unref (GHookList *hook_list,
1331 gboolean g_hook_destroy (GHookList *hook_list,
1333 void g_hook_destroy_link (GHookList *hook_list,
1335 void g_hook_prepend (GHookList *hook_list,
1337 void g_hook_insert_before (GHookList *hook_list,
1340 void g_hook_insert_sorted (GHookList *hook_list,
1342 GHookCompareFunc func);
1343 GHook* g_hook_get (GHookList *hook_list,
1345 GHook* g_hook_find (GHookList *hook_list,
1346 gboolean need_valids,
1349 GHook* g_hook_find_data (GHookList *hook_list,
1350 gboolean need_valids,
1352 GHook* g_hook_find_func (GHookList *hook_list,
1353 gboolean need_valids,
1355 GHook* g_hook_find_func_data (GHookList *hook_list,
1356 gboolean need_valids,
1359 /* return the first valid hook, and increment its reference count */
1360 GHook* g_hook_first_valid (GHookList *hook_list,
1361 gboolean may_be_in_call);
1362 /* return the next valid hook with incremented reference count, and
1363 * decrement the reference count of the original hook
1365 GHook* g_hook_next_valid (GHookList *hook_list,
1367 gboolean may_be_in_call);
1369 /* GHookCompareFunc implementation to insert hooks sorted by their id */
1370 gint g_hook_compare_ids (GHook *new_hook,
1373 /* convenience macros */
1374 #define g_hook_append( hook_list, hook ) \
1375 g_hook_insert_before ((hook_list), NULL, (hook))
1377 /* invoke all valid hooks with the (*GHookFunc) signature.
1379 void g_hook_list_invoke (GHookList *hook_list,
1380 gboolean may_recurse);
1381 /* invoke all valid hooks with the (*GHookCheckFunc) signature,
1382 * and destroy the hook if FALSE is returned.
1384 void g_hook_list_invoke_check (GHookList *hook_list,
1385 gboolean may_recurse);
1386 /* invoke a marshaller on all valid hooks.
1388 void g_hook_list_marshal (GHookList *hook_list,
1389 gboolean may_recurse,
1390 GHookMarshaller marshaller,
1392 void g_hook_list_marshal_check (GHookList *hook_list,
1393 gboolean may_recurse,
1394 GHookCheckMarshaller marshaller,
1398 /* Fatal error handlers.
1399 * g_on_error_query() will prompt the user to either
1400 * [E]xit, [H]alt, [P]roceed or show [S]tack trace.
1401 * g_on_error_stack_trace() invokes gdb, which attaches to the current
1402 * process and shows a stack trace.
1403 * These function may cause different actions on non-unix platforms.
1404 * The prg_name arg is required by gdb to find the executable, if it is
1405 * passed as NULL, g_on_error_query() will try g_get_prgname().
1407 void g_on_error_query (const gchar *prg_name);
1408 void g_on_error_stack_trace (const gchar *prg_name);
1411 /* Logging mechanism
1413 extern const gchar *g_log_domain_glib;
1414 guint g_log_set_handler (const gchar *log_domain,
1415 GLogLevelFlags log_levels,
1417 gpointer user_data);
1418 void g_log_remove_handler (const gchar *log_domain,
1420 void g_log_default_handler (const gchar *log_domain,
1421 GLogLevelFlags log_level,
1422 const gchar *message,
1423 gpointer unused_data);
1424 void g_log (const gchar *log_domain,
1425 GLogLevelFlags log_level,
1426 const gchar *format,
1427 ...) G_GNUC_PRINTF (3, 4);
1428 void g_logv (const gchar *log_domain,
1429 GLogLevelFlags log_level,
1430 const gchar *format,
1432 GLogLevelFlags g_log_set_fatal_mask (const gchar *log_domain,
1433 GLogLevelFlags fatal_mask);
1434 GLogLevelFlags g_log_set_always_fatal (GLogLevelFlags fatal_mask);
1435 #ifndef G_LOG_DOMAIN
1436 #define G_LOG_DOMAIN ((gchar*) 0)
1437 #endif /* G_LOG_DOMAIN */
1439 #define g_error(format, args...) g_log (G_LOG_DOMAIN, \
1440 G_LOG_LEVEL_ERROR, \
1442 #define g_message(format, args...) g_log (G_LOG_DOMAIN, \
1443 G_LOG_LEVEL_MESSAGE, \
1445 #define g_warning(format, args...) g_log (G_LOG_DOMAIN, \
1446 G_LOG_LEVEL_WARNING, \
1448 #else /* !__GNUC__ */
1450 g_error (const gchar *format,
1454 va_start (args, format);
1455 g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_ERROR, format, args);
1459 g_message (const gchar *format,
1463 va_start (args, format);
1464 g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_MESSAGE, format, args);
1468 g_warning (const gchar *format,
1472 va_start (args, format);
1473 g_logv (G_LOG_DOMAIN, G_LOG_LEVEL_WARNING, format, args);
1476 #endif /* !__GNUC__ */
1478 typedef void (*GPrintFunc) (const gchar *string);
1479 void g_print (const gchar *format,
1480 ...) G_GNUC_PRINTF (1, 2);
1481 GPrintFunc g_set_print_handler (GPrintFunc func);
1482 void g_printerr (const gchar *format,
1483 ...) G_GNUC_PRINTF (1, 2);
1484 GPrintFunc g_set_printerr_handler (GPrintFunc func);
1486 /* deprecated compatibility functions, use g_log_set_handler() instead */
1487 typedef void (*GErrorFunc) (const gchar *str);
1488 typedef void (*GWarningFunc) (const gchar *str);
1489 GErrorFunc g_set_error_handler (GErrorFunc func);
1490 GWarningFunc g_set_warning_handler (GWarningFunc func);
1491 GPrintFunc g_set_message_handler (GPrintFunc func);
1494 /* Memory allocation and debugging
1498 #define g_malloc(size) ((gpointer) MALLOC (size))
1499 #define g_malloc0(size) ((gpointer) CALLOC (char, size))
1500 #define g_realloc(mem,size) ((gpointer) REALLOC (mem, char, size))
1501 #define g_free(mem) FREE (mem)
1503 #else /* !USE_DMALLOC */
1505 gpointer g_malloc (gulong size);
1506 gpointer g_malloc0 (gulong size);
1507 gpointer g_realloc (gpointer mem,
1509 void g_free (gpointer mem);
1511 #endif /* !USE_DMALLOC */
1513 void g_mem_profile (void);
1514 void g_mem_check (gpointer mem);
1516 /* Generic allocators
1518 GAllocator* g_allocator_new (const gchar *name,
1520 void g_allocator_free (GAllocator *allocator);
1522 #define G_ALLOCATOR_LIST (1)
1523 #define G_ALLOCATOR_SLIST (2)
1524 #define G_ALLOCATOR_NODE (3)
1527 /* "g_mem_chunk_new" creates a new memory chunk.
1528 * Memory chunks are used to allocate pieces of memory which are
1529 * always the same size. Lists are a good example of such a data type.
1530 * The memory chunk allocates and frees blocks of memory as needed.
1531 * Just be sure to call "g_mem_chunk_free" and not "g_free" on data
1532 * allocated in a mem chunk. ("g_free" will most likely cause a seg
1533 * fault...somewhere).
1535 * Oh yeah, GMemChunk is an opaque data type. (You don't really
1536 * want to know what's going on inside do you?)
1539 /* ALLOC_ONLY MemChunk's can only allocate memory. The free operation
1540 * is interpreted as a no op. ALLOC_ONLY MemChunk's save 4 bytes per
1541 * atom. (They are also useful for lists which use MemChunk to allocate
1542 * memory but are also part of the MemChunk implementation).
1543 * ALLOC_AND_FREE MemChunk's can allocate and free memory.
1546 #define G_ALLOC_ONLY 1
1547 #define G_ALLOC_AND_FREE 2
1549 GMemChunk* g_mem_chunk_new (gchar *name,
1553 void g_mem_chunk_destroy (GMemChunk *mem_chunk);
1554 gpointer g_mem_chunk_alloc (GMemChunk *mem_chunk);
1555 gpointer g_mem_chunk_alloc0 (GMemChunk *mem_chunk);
1556 void g_mem_chunk_free (GMemChunk *mem_chunk,
1558 void g_mem_chunk_clean (GMemChunk *mem_chunk);
1559 void g_mem_chunk_reset (GMemChunk *mem_chunk);
1560 void g_mem_chunk_print (GMemChunk *mem_chunk);
1561 void g_mem_chunk_info (void);
1563 /* Ah yes...we have a "g_blow_chunks" function.
1564 * "g_blow_chunks" simply compresses all the chunks. This operation
1565 * consists of freeing every memory area that should be freed (but
1566 * which we haven't gotten around to doing yet). And, no,
1567 * "g_blow_chunks" doesn't follow the naming scheme, but it is a
1568 * much better name than "g_mem_chunk_clean_all" or something
1571 void g_blow_chunks (void);
1577 #define G_MICROSEC 1000000
1579 GTimer* g_timer_new (void);
1580 void g_timer_destroy (GTimer *timer);
1581 void g_timer_start (GTimer *timer);
1582 void g_timer_stop (GTimer *timer);
1583 void g_timer_reset (GTimer *timer);
1584 gdouble g_timer_elapsed (GTimer *timer,
1585 gulong *microseconds);
1586 void g_usleep (gulong microseconds);
1588 /* String utility functions that modify a string argument or
1589 * return a constant string that must not be freed.
1591 #define G_STR_DELIMITERS "_-|> <."
1592 gchar* g_strdelimit (gchar *string,
1593 const gchar *delimiters,
1594 gchar new_delimiter);
1595 gchar* g_strcanon (gchar *string,
1596 const gchar *valid_chars,
1598 gdouble g_strtod (const gchar *nptr,
1600 gchar* g_strerror (gint errnum);
1601 gchar* g_strsignal (gint signum);
1602 gint g_strcasecmp (const gchar *s1,
1604 gint g_strncasecmp (const gchar *s1,
1607 gchar* g_strdown (gchar *string);
1608 gchar* g_strup (gchar *string);
1609 gchar* g_strreverse (gchar *string);
1610 /* removes leading spaces */
1611 gchar* g_strchug (gchar *string);
1612 /* removes trailing spaces */
1613 gchar* g_strchomp (gchar *string);
1614 /* removes leading & trailing spaces */
1615 #define g_strstrip( string ) g_strchomp (g_strchug (string))
1617 /* String utility functions that return a newly allocated string which
1618 * ought to be freed with g_free from the caller at some point.
1620 gchar* g_strdup (const gchar *str);
1621 gchar* g_strdup_printf (const gchar *format,
1622 ...) G_GNUC_PRINTF (1, 2);
1623 gchar* g_strdup_vprintf (const gchar *format,
1625 gchar* g_strndup (const gchar *str,
1627 gchar* g_strnfill (guint length,
1629 gchar* g_strconcat (const gchar *string1,
1630 ...); /* NULL terminated */
1631 gchar* g_strjoin (const gchar *separator,
1632 ...); /* NULL terminated */
1633 /* Make a copy of a string interpreting C string -style escape
1634 * sequences. Inverse of g_strescape. The recognized sequences are \b
1635 * \f \n \r \t \\ \" and the octal format.
1637 gchar* g_strcompress (const gchar *source);
1639 /* Convert between the operating system (or C runtime)
1640 * representation of file names and UTF-8.
1642 gchar* g_filename_to_utf8 (const gchar *opsysstring);
1643 gchar* g_filename_from_utf8 (const gchar *utf8string);
1645 /* Copy a string escaping nonprintable characters like in C strings.
1646 * Inverse of g_strcompress. The exceptions parameter, if non-NULL, points
1647 * to a string containing characters that are not to be escaped.
1649 * Deprecated API: gchar* g_strescape (const gchar *source);
1650 * Luckily this function wasn't used much, using NULL as second parameter
1651 * provides mostly identical semantics.
1653 gchar* g_strescape (const gchar *source,
1654 const gchar *exceptions);
1656 gpointer g_memdup (gconstpointer mem,
1659 /* NULL terminated string arrays.
1660 * g_strsplit() splits up string into max_tokens tokens at delim and
1661 * returns a newly allocated string array.
1662 * g_strjoinv() concatenates all of str_array's strings, sliding in an
1663 * optional separator, the returned string is newly allocated.
1664 * g_strfreev() frees the array itself and all of its strings.
1666 gchar** g_strsplit (const gchar *string,
1667 const gchar *delimiter,
1669 gchar* g_strjoinv (const gchar *separator,
1671 void g_strfreev (gchar **str_array);
1675 /* calculate a string size, guarranteed to fit format + args.
1677 guint g_printf_string_upper_bound (const gchar* format,
1681 /* Retrive static string info
1683 gchar* g_get_user_name (void);
1684 gchar* g_get_real_name (void);
1685 gchar* g_get_home_dir (void);
1686 gchar* g_get_tmp_dir (void);
1687 gchar* g_get_prgname (void);
1688 void g_set_prgname (const gchar *prgname);
1691 /* Miscellaneous utility functions
1693 guint g_parse_debug_string (const gchar *string,
1696 gint g_snprintf (gchar *string,
1698 gchar const *format,
1699 ...) G_GNUC_PRINTF (3, 4);
1700 gint g_vsnprintf (gchar *string,
1702 gchar const *format,
1704 /* Check if a file name is an absolute path */
1705 gboolean g_path_is_absolute (const gchar *file_name);
1706 /* In case of absolute paths, skip the root part */
1707 gchar* g_path_skip_root (gchar *file_name);
1709 /* These two functions are deprecated and will be removed in the next
1710 * major release of GLib. Use g_path_get_dirname/g_path_get_basename
1711 * instead. Whatch out! The string returned by g_path_get_basename
1712 * must be g_freed, while the string returned by g_basename must not.*/
1713 gchar* g_basename (const gchar *file_name);
1714 gchar* g_dirname (const gchar *file_name);
1716 /* The returned strings are newly allocated with g_malloc() */
1717 gchar* g_get_current_dir (void);
1718 gchar* g_path_get_basename (const gchar *file_name);
1719 gchar* g_path_get_dirname (const gchar *file_name);
1721 /* Get the codeset for the current locale */
1722 /* gchar * g_get_codeset (void); */
1724 /* return the environment string for the variable. The returned memory
1725 * must not be freed. */
1726 gchar* g_getenv (const gchar *variable);
1728 /* we use a GLib function as a replacement for ATEXIT, so
1729 * the programmer is not required to check the return value
1730 * (if there is any in the implementation) and doesn't encounter
1731 * missing include files.
1733 void g_atexit (GVoidFunc func);
1738 G_INLINE_FUNC gint g_bit_nth_lsf (guint32 mask,
1742 g_bit_nth_lsf (guint32 mask,
1748 if (mask & (1 << (guint) nth_bit))
1751 while (nth_bit < 32);
1754 #endif /* G_CAN_INLINE */
1756 G_INLINE_FUNC gint g_bit_nth_msf (guint32 mask,
1760 g_bit_nth_msf (guint32 mask,
1768 if (mask & (1 << (guint) nth_bit))
1771 while (nth_bit > 0);
1774 #endif /* G_CAN_INLINE */
1776 G_INLINE_FUNC guint g_bit_storage (guint number);
1779 g_bit_storage (guint number)
1781 register guint n_bits = 0;
1791 #endif /* G_CAN_INLINE */
1795 * elements need to be >= sizeof (gpointer)
1797 G_INLINE_FUNC void g_trash_stack_push (GTrashStack **stack_p,
1801 g_trash_stack_push (GTrashStack **stack_p,
1804 GTrashStack *data = (GTrashStack *) data_p;
1806 data->next = *stack_p;
1809 #endif /* G_CAN_INLINE */
1811 G_INLINE_FUNC gpointer g_trash_stack_pop (GTrashStack **stack_p);
1813 G_INLINE_FUNC gpointer
1814 g_trash_stack_pop (GTrashStack **stack_p)
1821 *stack_p = data->next;
1822 /* NULLify private pointer here, most platforms store NULL as
1823 * subsequent 0 bytes
1830 #endif /* G_CAN_INLINE */
1832 G_INLINE_FUNC gpointer g_trash_stack_peek (GTrashStack **stack_p);
1834 G_INLINE_FUNC gpointer
1835 g_trash_stack_peek (GTrashStack **stack_p)
1843 #endif /* G_CAN_INLINE */
1845 G_INLINE_FUNC guint g_trash_stack_height (GTrashStack **stack_p);
1848 g_trash_stack_height (GTrashStack **stack_p)
1853 for (data = *stack_p; data; data = data->next)
1858 #endif /* G_CAN_INLINE */
1863 GStringChunk* g_string_chunk_new (gint size);
1864 void g_string_chunk_free (GStringChunk *chunk);
1865 gchar* g_string_chunk_insert (GStringChunk *chunk,
1866 const gchar *string);
1867 gchar* g_string_chunk_insert_const (GStringChunk *chunk,
1868 const gchar *string);
1873 GString* g_string_new (const gchar *init);
1874 GString* g_string_sized_new (guint dfl_size);
1875 void g_string_free (GString *string,
1876 gboolean free_segment);
1877 gboolean g_string_equal (const GString *v,
1879 guint g_string_hash (const GString *str);
1880 GString* g_string_assign (GString *string,
1882 GString* g_string_truncate (GString *string,
1884 GString* g_string_insert_len (GString *string,
1888 GString* g_string_append (GString *string,
1890 GString* g_string_append_len (GString *string,
1893 GString* g_string_append_c (GString *string,
1895 GString* g_string_prepend (GString *string,
1897 GString* g_string_prepend_c (GString *string,
1899 GString* g_string_prepend_len (GString *string,
1902 GString* g_string_insert (GString *string,
1905 GString* g_string_insert_c (GString *string,
1908 GString* g_string_erase (GString *string,
1911 GString* g_string_down (GString *string);
1912 GString* g_string_up (GString *string);
1913 void g_string_sprintf (GString *string,
1914 const gchar *format,
1915 ...) G_GNUC_PRINTF (2, 3);
1916 void g_string_sprintfa (GString *string,
1917 const gchar *format,
1918 ...) G_GNUC_PRINTF (2, 3);
1921 /* Resizable arrays, remove fills any cleared spot and shortens the
1922 * array, while preserving the order. remove_fast will distort the
1923 * order by moving the last element to the position of the removed
1926 #define g_array_append_val(a,v) g_array_append_vals (a, &v, 1)
1927 #define g_array_prepend_val(a,v) g_array_prepend_vals (a, &v, 1)
1928 #define g_array_insert_val(a,i,v) g_array_insert_vals (a, i, &v, 1)
1929 #define g_array_index(a,t,i) (((t*) (a)->data) [(i)])
1931 GArray* g_array_new (gboolean zero_terminated,
1933 guint element_size);
1934 GArray* g_array_sized_new (gboolean zero_terminated,
1937 guint reserved_size);
1938 void g_array_free (GArray *array,
1939 gboolean free_segment);
1940 GArray* g_array_append_vals (GArray *array,
1943 GArray* g_array_prepend_vals (GArray *array,
1946 GArray* g_array_insert_vals (GArray *array,
1950 GArray* g_array_set_size (GArray *array,
1952 GArray* g_array_remove_index (GArray *array,
1954 GArray* g_array_remove_index_fast (GArray *array,
1957 /* Resizable pointer array. This interface is much less complicated
1958 * than the above. Add appends appends a pointer. Remove fills any
1959 * cleared spot and shortens the array. remove_fast will again distort
1962 #define g_ptr_array_index(array,index) (array->pdata)[index]
1963 GPtrArray* g_ptr_array_new (void);
1964 GPtrArray* g_ptr_array_sized_new (guint reserved_size);
1965 void g_ptr_array_free (GPtrArray *array,
1967 void g_ptr_array_set_size (GPtrArray *array,
1969 gpointer g_ptr_array_remove_index (GPtrArray *array,
1971 gpointer g_ptr_array_remove_index_fast (GPtrArray *array,
1973 gboolean g_ptr_array_remove (GPtrArray *array,
1975 gboolean g_ptr_array_remove_fast (GPtrArray *array,
1977 void g_ptr_array_add (GPtrArray *array,
1980 /* Byte arrays, an array of guint8. Implemented as a GArray,
1984 GByteArray* g_byte_array_new (void);
1985 GByteArray* g_byte_array_sized_new (guint reserved_size);
1986 void g_byte_array_free (GByteArray *array,
1987 gboolean free_segment);
1988 GByteArray* g_byte_array_append (GByteArray *array,
1991 GByteArray* g_byte_array_prepend (GByteArray *array,
1994 GByteArray* g_byte_array_set_size (GByteArray *array,
1996 GByteArray* g_byte_array_remove_index (GByteArray *array,
1998 GByteArray* g_byte_array_remove_index_fast (GByteArray *array,
2004 gboolean g_str_equal (gconstpointer v,
2006 guint g_str_hash (gconstpointer v);
2008 gint g_int_equal (gconstpointer v,
2010 guint g_int_hash (gconstpointer v);
2012 /* This "hash" function will just return the key's adress as an
2013 * unsigned integer. Useful for hashing on plain adresses or
2014 * simple integer values.
2015 * passing NULL into g_hash_table_new() as GHashFunc has the
2016 * same effect as passing g_direct_hash().
2018 guint g_direct_hash (gconstpointer v);
2019 gint g_direct_equal (gconstpointer v,
2023 /* Quarks (string<->id association)
2025 GQuark g_quark_try_string (const gchar *string);
2026 GQuark g_quark_from_static_string (const gchar *string);
2027 GQuark g_quark_from_string (const gchar *string);
2028 gchar* g_quark_to_string (GQuark quark);
2033 void g_datalist_init (GData **datalist);
2034 void g_datalist_clear (GData **datalist);
2035 gpointer g_datalist_id_get_data (GData **datalist,
2037 void g_datalist_id_set_data_full (GData **datalist,
2040 GDestroyNotify destroy_func);
2041 gpointer g_datalist_id_remove_no_notify (GData **datalist,
2043 void g_datalist_foreach (GData **datalist,
2044 GDataForeachFunc func,
2045 gpointer user_data);
2046 #define g_datalist_id_set_data(dl, q, d) \
2047 g_datalist_id_set_data_full ((dl), (q), (d), NULL)
2048 #define g_datalist_id_remove_data(dl, q) \
2049 g_datalist_id_set_data ((dl), (q), NULL)
2050 #define g_datalist_get_data(dl, k) \
2051 (g_datalist_id_get_data ((dl), g_quark_try_string (k)))
2052 #define g_datalist_set_data_full(dl, k, d, f) \
2053 g_datalist_id_set_data_full ((dl), g_quark_from_string (k), (d), (f))
2054 #define g_datalist_remove_no_notify(dl, k) \
2055 g_datalist_id_remove_no_notify ((dl), g_quark_try_string (k))
2056 #define g_datalist_set_data(dl, k, d) \
2057 g_datalist_set_data_full ((dl), (k), (d), NULL)
2058 #define g_datalist_remove_data(dl, k) \
2059 g_datalist_id_set_data ((dl), g_quark_try_string (k), NULL)
2062 /* Location Associated Keyed Data
2064 void g_dataset_destroy (gconstpointer dataset_location);
2065 gpointer g_dataset_id_get_data (gconstpointer dataset_location,
2067 void g_dataset_id_set_data_full (gconstpointer dataset_location,
2070 GDestroyNotify destroy_func);
2071 gpointer g_dataset_id_remove_no_notify (gconstpointer dataset_location,
2073 void g_dataset_foreach (gconstpointer dataset_location,
2074 GDataForeachFunc func,
2075 gpointer user_data);
2076 #define g_dataset_id_set_data(l, k, d) \
2077 g_dataset_id_set_data_full ((l), (k), (d), NULL)
2078 #define g_dataset_id_remove_data(l, k) \
2079 g_dataset_id_set_data ((l), (k), NULL)
2080 #define g_dataset_get_data(l, k) \
2081 (g_dataset_id_get_data ((l), g_quark_try_string (k)))
2082 #define g_dataset_set_data_full(l, k, d, f) \
2083 g_dataset_id_set_data_full ((l), g_quark_from_string (k), (d), (f))
2084 #define g_dataset_remove_no_notify(l, k) \
2085 g_dataset_id_remove_no_notify ((l), g_quark_try_string (k))
2086 #define g_dataset_set_data(l, k, d) \
2087 g_dataset_set_data_full ((l), (k), (d), NULL)
2088 #define g_dataset_remove_data(l, k) \
2089 g_dataset_id_set_data ((l), g_quark_try_string (k), NULL)
2092 /* GScanner: Flexible lexical scanner for general purpose.
2095 /* Character sets */
2096 #define G_CSET_A_2_Z "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
2097 #define G_CSET_a_2_z "abcdefghijklmnopqrstuvwxyz"
2098 #define G_CSET_DIGITS "0123456789"
2099 #define G_CSET_LATINC "\300\301\302\303\304\305\306"\
2100 "\307\310\311\312\313\314\315\316\317\320"\
2101 "\321\322\323\324\325\326"\
2102 "\330\331\332\333\334\335\336"
2103 #define G_CSET_LATINS "\337\340\341\342\343\344\345\346"\
2104 "\347\350\351\352\353\354\355\356\357\360"\
2105 "\361\362\363\364\365\366"\
2106 "\370\371\372\373\374\375\376\377"
2113 G_ERR_UNEXP_EOF_IN_STRING,
2114 G_ERR_UNEXP_EOF_IN_COMMENT,
2115 G_ERR_NON_DIGIT_IN_CONST,
2118 G_ERR_FLOAT_MALFORMED
2126 G_TOKEN_LEFT_PAREN = '(',
2127 G_TOKEN_RIGHT_PAREN = ')',
2128 G_TOKEN_LEFT_CURLY = '{',
2129 G_TOKEN_RIGHT_CURLY = '}',
2130 G_TOKEN_LEFT_BRACE = '[',
2131 G_TOKEN_RIGHT_BRACE = ']',
2132 G_TOKEN_EQUAL_SIGN = '=',
2133 G_TOKEN_COMMA = ',',
2149 G_TOKEN_IDENTIFIER_NULL,
2151 G_TOKEN_COMMENT_SINGLE,
2152 G_TOKEN_COMMENT_MULTI,
2159 gchar *v_identifier;
2171 struct _GScannerConfig
2175 gchar *cset_skip_characters; /* default: " \t\n" */
2176 gchar *cset_identifier_first;
2177 gchar *cset_identifier_nth;
2178 gchar *cpair_comment_single; /* default: "#\n" */
2180 /* Should symbol lookup work case sensitive?
2182 guint case_sensitive : 1;
2184 /* Boolean values to be adjusted "on the fly"
2185 * to configure scanning behaviour.
2187 guint skip_comment_multi : 1; /* C like comment */
2188 guint skip_comment_single : 1; /* single line comment */
2189 guint scan_comment_multi : 1; /* scan multi line comments? */
2190 guint scan_identifier : 1;
2191 guint scan_identifier_1char : 1;
2192 guint scan_identifier_NULL : 1;
2193 guint scan_symbols : 1;
2194 guint scan_binary : 1;
2195 guint scan_octal : 1;
2196 guint scan_float : 1;
2197 guint scan_hex : 1; /* `0x0ff0' */
2198 guint scan_hex_dollar : 1; /* `$0ff0' */
2199 guint scan_string_sq : 1; /* string: 'anything' */
2200 guint scan_string_dq : 1; /* string: "\\-escapes!\n" */
2201 guint numbers_2_int : 1; /* bin, octal, hex => int */
2202 guint int_2_float : 1; /* int => G_TOKEN_FLOAT? */
2203 guint identifier_2_string : 1;
2204 guint char_2_token : 1; /* return G_TOKEN_CHAR? */
2205 guint symbol_2_token : 1;
2206 guint scope_0_fallback : 1; /* try scope 0 on lookups? */
2213 guint max_parse_errors;
2215 /* g_scanner_error() increments this field */
2218 /* name of input stream, featured by the default message handler */
2219 const gchar *input_name;
2221 /* data pointer for derived structures */
2222 gpointer derived_data;
2224 /* link into the scanner configuration */
2225 GScannerConfig *config;
2227 /* fields filled in after g_scanner_get_next_token() */
2233 /* fields filled in after g_scanner_peek_next_token() */
2234 GTokenType next_token;
2235 GTokenValue next_value;
2237 guint next_position;
2239 /* to be considered private */
2240 GHashTable *symbol_table;
2243 const gchar *text_end;
2247 /* handler function for _warn and _error */
2248 GScannerMsgFunc msg_handler;
2251 GScanner* g_scanner_new (GScannerConfig *config_templ);
2252 void g_scanner_destroy (GScanner *scanner);
2253 void g_scanner_input_file (GScanner *scanner,
2255 void g_scanner_sync_file_offset (GScanner *scanner);
2256 void g_scanner_input_text (GScanner *scanner,
2259 GTokenType g_scanner_get_next_token (GScanner *scanner);
2260 GTokenType g_scanner_peek_next_token (GScanner *scanner);
2261 GTokenType g_scanner_cur_token (GScanner *scanner);
2262 GTokenValue g_scanner_cur_value (GScanner *scanner);
2263 guint g_scanner_cur_line (GScanner *scanner);
2264 guint g_scanner_cur_position (GScanner *scanner);
2265 gboolean g_scanner_eof (GScanner *scanner);
2266 guint g_scanner_set_scope (GScanner *scanner,
2268 void g_scanner_scope_add_symbol (GScanner *scanner,
2270 const gchar *symbol,
2272 void g_scanner_scope_remove_symbol (GScanner *scanner,
2274 const gchar *symbol);
2275 gpointer g_scanner_scope_lookup_symbol (GScanner *scanner,
2277 const gchar *symbol);
2278 void g_scanner_scope_foreach_symbol (GScanner *scanner,
2281 gpointer user_data);
2282 gpointer g_scanner_lookup_symbol (GScanner *scanner,
2283 const gchar *symbol);
2284 void g_scanner_unexp_token (GScanner *scanner,
2285 GTokenType expected_token,
2286 const gchar *identifier_spec,
2287 const gchar *symbol_spec,
2288 const gchar *symbol_name,
2289 const gchar *message,
2291 void g_scanner_error (GScanner *scanner,
2292 const gchar *format,
2293 ...) G_GNUC_PRINTF (2,3);
2294 void g_scanner_warn (GScanner *scanner,
2295 const gchar *format,
2296 ...) G_GNUC_PRINTF (2,3);
2297 gint g_scanner_stat_mode (const gchar *filename);
2298 /* keep downward source compatibility */
2299 #define g_scanner_add_symbol( scanner, symbol, value ) G_STMT_START { \
2300 g_scanner_scope_add_symbol ((scanner), 0, (symbol), (value)); \
2302 #define g_scanner_remove_symbol( scanner, symbol ) G_STMT_START { \
2303 g_scanner_scope_remove_symbol ((scanner), 0, (symbol)); \
2305 #define g_scanner_foreach_symbol( scanner, func, data ) G_STMT_START { \
2306 g_scanner_scope_foreach_symbol ((scanner), 0, (func), (data)); \
2309 /* The following two functions are deprecated and will be removed in
2310 * the next major release. They do no good. */
2311 void g_scanner_freeze_symbol_table (GScanner *scanner);
2312 void g_scanner_thaw_symbol_table (GScanner *scanner);
2320 GCompletionFunc func;
2326 GCompletion* g_completion_new (GCompletionFunc func);
2327 void g_completion_add_items (GCompletion* cmp,
2329 void g_completion_remove_items (GCompletion* cmp,
2331 void g_completion_clear_items (GCompletion* cmp);
2332 GList* g_completion_complete (GCompletion* cmp,
2334 gchar** new_prefix);
2335 void g_completion_free (GCompletion* cmp);
2340 * Date calculations (not time for now, to be resolved). These are a
2341 * mutant combination of Steffen Beyer's DateCalc routines
2342 * (http://www.perl.com/CPAN/authors/id/STBEY/) and Jon Trowbridge's
2343 * date routines (written for in-house software). Written by Havoc
2344 * Pennington <hp@pobox.com>
2347 typedef guint16 GDateYear;
2348 typedef guint8 GDateDay; /* day of the month */
2349 typedef struct _GDate GDate;
2350 /* make struct tm known without having to include time.h */
2353 /* enum used to specify order of appearance in parsed date strings */
2361 /* actual week and month values */
2364 G_DATE_BAD_WEEKDAY = 0,
2367 G_DATE_WEDNESDAY = 3,
2368 G_DATE_THURSDAY = 4,
2370 G_DATE_SATURDAY = 6,
2375 G_DATE_BAD_MONTH = 0,
2377 G_DATE_FEBRUARY = 2,
2384 G_DATE_SEPTEMBER = 9,
2385 G_DATE_OCTOBER = 10,
2386 G_DATE_NOVEMBER = 11,
2387 G_DATE_DECEMBER = 12
2390 #define G_DATE_BAD_JULIAN 0U
2391 #define G_DATE_BAD_DAY 0U
2392 #define G_DATE_BAD_YEAR 0U
2394 /* Note: directly manipulating structs is generally a bad idea, but
2395 * in this case it's an *incredibly* bad idea, because all or part
2396 * of this struct can be invalid at any given time. Use the functions,
2397 * or you will get hosed, I promise.
2401 guint julian_days : 32; /* julian days representation - we use a
2402 * bitfield hoping that 64 bit platforms
2403 * will pack this whole struct in one big
2407 guint julian : 1; /* julian is valid */
2408 guint dmy : 1; /* dmy is valid */
2410 /* DMY representation */
2416 /* g_date_new() returns an invalid date, you then have to _set() stuff
2417 * to get a usable object. You can also allocate a GDate statically,
2418 * then call g_date_clear() to initialize.
2420 GDate* g_date_new (void);
2421 GDate* g_date_new_dmy (GDateDay day,
2424 GDate* g_date_new_julian (guint32 julian_day);
2425 void g_date_free (GDate *date);
2427 /* check g_date_valid() after doing an operation that might fail, like
2428 * _parse. Almost all g_date operations are undefined on invalid
2429 * dates (the exceptions are the mutators, since you need those to
2430 * return to validity).
2432 gboolean g_date_valid (GDate *date);
2433 gboolean g_date_valid_day (GDateDay day);
2434 gboolean g_date_valid_month (GDateMonth month);
2435 gboolean g_date_valid_year (GDateYear year);
2436 gboolean g_date_valid_weekday (GDateWeekday weekday);
2437 gboolean g_date_valid_julian (guint32 julian_date);
2438 gboolean g_date_valid_dmy (GDateDay day,
2442 GDateWeekday g_date_weekday (GDate *date);
2443 GDateMonth g_date_month (GDate *date);
2444 GDateYear g_date_year (GDate *date);
2445 GDateDay g_date_day (GDate *date);
2446 guint32 g_date_julian (GDate *date);
2447 guint g_date_day_of_year (GDate *date);
2449 /* First monday/sunday is the start of week 1; if we haven't reached
2450 * that day, return 0. These are not ISO weeks of the year; that
2451 * routine needs to be added.
2452 * these functions return the number of weeks, starting on the
2455 guint g_date_monday_week_of_year (GDate *date);
2456 guint g_date_sunday_week_of_year (GDate *date);
2458 /* If you create a static date struct you need to clear it to get it
2459 * in a sane state before use. You can clear a whole array at
2460 * once with the ndates argument.
2462 void g_date_clear (GDate *date,
2465 /* The parse routine is meant for dates typed in by a user, so it
2466 * permits many formats but tries to catch common typos. If your data
2467 * needs to be strictly validated, it is not an appropriate function.
2469 void g_date_set_parse (GDate *date,
2471 void g_date_set_time (GDate *date,
2473 void g_date_set_month (GDate *date,
2475 void g_date_set_day (GDate *date,
2477 void g_date_set_year (GDate *date,
2479 void g_date_set_dmy (GDate *date,
2483 void g_date_set_julian (GDate *date,
2484 guint32 julian_date);
2485 gboolean g_date_is_first_of_month (GDate *date);
2486 gboolean g_date_is_last_of_month (GDate *date);
2488 /* To go forward by some number of weeks just go forward weeks*7 days */
2489 void g_date_add_days (GDate *date,
2491 void g_date_subtract_days (GDate *date,
2494 /* If you add/sub months while day > 28, the day might change */
2495 void g_date_add_months (GDate *date,
2497 void g_date_subtract_months (GDate *date,
2500 /* If it's feb 29, changing years can move you to the 28th */
2501 void g_date_add_years (GDate *date,
2503 void g_date_subtract_years (GDate *date,
2505 gboolean g_date_is_leap_year (GDateYear year);
2506 guint8 g_date_days_in_month (GDateMonth month,
2508 guint8 g_date_monday_weeks_in_year (GDateYear year);
2509 guint8 g_date_sunday_weeks_in_year (GDateYear year);
2511 /* qsort-friendly (with a cast...) */
2512 gint g_date_compare (GDate *lhs,
2514 void g_date_to_struct_tm (GDate *date,
2517 /* Just like strftime() except you can only use date-related formats.
2518 * Using a time format is undefined.
2520 gsize g_date_strftime (gchar *s,
2522 const gchar *format,
2528 * Indexed Relations. Imagine a really simple table in a
2529 * database. Relations are not ordered. This data type is meant for
2530 * maintaining a N-way mapping.
2532 * g_relation_new() creates a relation with FIELDS fields
2534 * g_relation_destroy() frees all resources
2535 * g_tuples_destroy() frees the result of g_relation_select()
2537 * g_relation_index() indexes relation FIELD with the provided
2538 * equality and hash functions. this must be done before any
2539 * calls to insert are made.
2541 * g_relation_insert() inserts a new tuple. you are expected to
2542 * provide the right number of fields.
2544 * g_relation_delete() deletes all relations with KEY in FIELD
2545 * g_relation_select() returns ...
2546 * g_relation_count() counts ...
2549 GRelation* g_relation_new (gint fields);
2550 void g_relation_destroy (GRelation *relation);
2551 void g_relation_index (GRelation *relation,
2553 GHashFunc hash_func,
2554 GCompareFunc key_compare_func);
2555 void g_relation_insert (GRelation *relation,
2557 gint g_relation_delete (GRelation *relation,
2560 GTuples* g_relation_select (GRelation *relation,
2563 gint g_relation_count (GRelation *relation,
2566 gboolean g_relation_exists (GRelation *relation,
2568 void g_relation_print (GRelation *relation);
2570 void g_tuples_destroy (GTuples *tuples);
2571 gpointer g_tuples_index (GTuples *tuples,
2576 /* GRand - a good and fast random number generator: Mersenne Twister
2577 * see http://www.math.keio.ac.jp/~matumoto/emt.html for more info.
2578 * The range functions return a value in the intervall [min,max).
2579 * int -> [0..2^32-1]
2580 * int_range -> [min..max-1]
2582 * double_range -> [min..max)
2585 GRand* g_rand_new_with_seed (guint32 seed);
2586 GRand* g_rand_new (void);
2587 void g_rand_free (GRand *rand);
2589 void g_rand_set_seed (GRand *rand,
2591 guint32 g_rand_int (GRand *rand);
2592 gint32 g_rand_int_range (GRand *rand,
2595 gdouble g_rand_double (GRand *rand);
2596 gdouble g_rand_double_range (GRand *rand,
2600 void g_random_set_seed (guint32 seed);
2601 guint32 g_random_int (void);
2602 gint32 g_random_int_range (gint32 min,
2604 gdouble g_random_double (void);
2605 gdouble g_random_double_range (gdouble min,
2612 /* This function returns prime numbers spaced by approximately 1.5-2.0
2613 * and is for use in resizing data structures which prefer
2614 * prime-valued sizes. The closest spaced prime function returns the
2615 * next largest prime, or the highest it knows about which is about
2618 guint g_spaced_primes_closest (guint num);
2624 typedef struct _GIOFuncs GIOFuncs;
2640 G_IO_IN GLIB_SYSDEF_POLLIN,
2641 G_IO_OUT GLIB_SYSDEF_POLLOUT,
2642 G_IO_PRI GLIB_SYSDEF_POLLPRI,
2643 G_IO_ERR GLIB_SYSDEF_POLLERR,
2644 G_IO_HUP GLIB_SYSDEF_POLLHUP,
2645 G_IO_NVAL GLIB_SYSDEF_POLLNVAL
2650 guint channel_flags;
2655 typedef gboolean (*GIOFunc) (GIOChannel *source,
2656 GIOCondition condition,
2660 GIOError (*io_read) (GIOChannel *channel,
2664 GIOError (*io_write) (GIOChannel *channel,
2667 guint *bytes_written);
2668 GIOError (*io_seek) (GIOChannel *channel,
2671 void (*io_close) (GIOChannel *channel);
2672 guint (*io_add_watch) (GIOChannel *channel,
2674 GIOCondition condition,
2677 GDestroyNotify notify);
2678 void (*io_free) (GIOChannel *channel);
2681 void g_io_channel_init (GIOChannel *channel);
2682 void g_io_channel_ref (GIOChannel *channel);
2683 void g_io_channel_unref (GIOChannel *channel);
2684 GIOError g_io_channel_read (GIOChannel *channel,
2688 GIOError g_io_channel_write (GIOChannel *channel,
2691 guint *bytes_written);
2692 GIOError g_io_channel_seek (GIOChannel *channel,
2695 void g_io_channel_close (GIOChannel *channel);
2696 guint g_io_add_watch_full (GIOChannel *channel,
2698 GIOCondition condition,
2701 GDestroyNotify notify);
2702 guint g_io_add_watch (GIOChannel *channel,
2703 GIOCondition condition,
2705 gpointer user_data);
2710 typedef struct _GTimeVal GTimeVal;
2711 typedef struct _GSourceFuncs GSourceFuncs;
2712 typedef struct _GMainLoop GMainLoop; /* Opaque */
2719 struct _GSourceFuncs
2721 gboolean (*prepare) (gpointer source_data,
2722 GTimeVal *current_time,
2724 gpointer user_data);
2725 gboolean (*check) (gpointer source_data,
2726 GTimeVal *current_time,
2727 gpointer user_data);
2728 gboolean (*dispatch) (gpointer source_data,
2729 GTimeVal *dispatch_time,
2730 gpointer user_data);
2731 GDestroyNotify destroy;
2734 /* Standard priorities */
2736 #define G_PRIORITY_HIGH -100
2737 #define G_PRIORITY_DEFAULT 0
2738 #define G_PRIORITY_HIGH_IDLE 100
2739 #define G_PRIORITY_DEFAULT_IDLE 200
2740 #define G_PRIORITY_LOW 300
2742 typedef gboolean (*GSourceFunc) (gpointer data);
2744 /* Hooks for adding to the main loop */
2745 guint g_source_add (gint priority,
2746 gboolean can_recurse,
2747 GSourceFuncs *funcs,
2748 gpointer source_data,
2750 GDestroyNotify notify);
2751 gboolean g_source_remove (guint tag);
2752 gboolean g_source_remove_by_user_data (gpointer user_data);
2753 gboolean g_source_remove_by_source_data (gpointer source_data);
2754 gboolean g_source_remove_by_funcs_user_data (GSourceFuncs *funcs,
2755 gpointer user_data);
2757 void g_get_current_time (GTimeVal *result);
2759 /* Running the main loop */
2760 GMainLoop* g_main_new (gboolean is_running);
2761 void g_main_run (GMainLoop *loop);
2762 void g_main_quit (GMainLoop *loop);
2763 void g_main_destroy (GMainLoop *loop);
2764 gboolean g_main_is_running (GMainLoop *loop);
2766 /* Run a single iteration of the mainloop. If block is FALSE,
2769 gboolean g_main_iteration (gboolean may_block);
2771 /* See if any events are pending */
2772 gboolean g_main_pending (void);
2774 /* Idles and timeouts */
2775 guint g_timeout_add_full (gint priority,
2777 GSourceFunc function,
2779 GDestroyNotify notify);
2780 guint g_timeout_add (guint interval,
2781 GSourceFunc function,
2783 guint g_idle_add (GSourceFunc function,
2785 guint g_idle_add_full (gint priority,
2786 GSourceFunc function,
2788 GDestroyNotify destroy);
2789 gboolean g_idle_remove_by_data (gpointer data);
2793 * System-specific IO and main loop calls
2795 * On Win32, the fd in a GPollFD should be Win32 HANDLE (*not* a file
2796 * descriptor as provided by the C runtime) that can be used by
2797 * MsgWaitForMultipleObjects. This does *not* include file handles
2798 * from CreateFile, SOCKETs, nor pipe handles. (But you can use
2799 * WSAEventSelect to signal events when a SOCKET is readable).
2801 * On Win32, fd can also be the special value G_WIN32_MSG_HANDLE to
2802 * indicate polling for messages. These message queue GPollFDs should
2803 * be added with the g_main_poll_win32_msg_add function.
2805 * But note that G_WIN32_MSG_HANDLE GPollFDs should not be used by GDK
2806 * (GTK) programs, as GDK itself wants to read messages and convert them
2809 * So, unless you really know what you are doing, it's best not to try
2810 * to use the main loop polling stuff for your own needs on
2811 * Win32. It's really only written for the GIMP's needs so
2815 typedef struct _GPollFD GPollFD;
2816 typedef gint (*GPollFunc) (GPollFD *ufds,
2826 void g_main_add_poll (GPollFD *fd,
2828 void g_main_remove_poll (GPollFD *fd);
2829 void g_main_set_poll_func (GPollFunc func);
2831 /* On Unix, IO channels created with this function for any file
2832 * descriptor or socket.
2834 * On Win32, use this only for plain files opened with the MSVCRT (the
2835 * Microsoft run-time C library) _open(), including file descriptors
2836 * 0, 1 and 2 (corresponding to stdin, stdout and stderr).
2837 * Actually, don't do even that, this code isn't done yet.
2839 * The term file descriptor as used in the context of Win32 refers to
2840 * the emulated Unix-like file descriptors MSVCRT provides.
2842 GIOChannel* g_io_channel_unix_new (int fd);
2843 gint g_io_channel_unix_get_fd (GIOChannel *channel);
2847 GLIB_VAR guint g_pipe_readable_msg;
2849 #define G_WIN32_MSG_HANDLE 19981206
2851 /* This is used to add polling for Windows messages. GDK (GTk+) programs
2852 * should *not* use this. (In fact, I can't think of any program that
2853 * would want to use this, but it's here just for completeness's sake.
2855 void g_main_poll_win32_msg_add(gint priority,
2859 /* An IO channel for Windows messages for window handle hwnd. */
2860 GIOChannel *g_io_channel_win32_new_messages (guint hwnd);
2862 /* An IO channel for an anonymous pipe as returned from the MSVCRT
2863 * _pipe(), with no mechanism for the writer to tell the reader when
2864 * there is data in the pipe.
2866 * This is not really implemented yet.
2868 GIOChannel *g_io_channel_win32_new_pipe (int fd);
2870 /* An IO channel for a pipe as returned from the MSVCRT _pipe(), with
2871 * Windows user messages used to signal data in the pipe for the
2874 * fd is the file descriptor. For the write end, peer is the thread id
2875 * of the reader, and peer_fd is his file descriptor for the read end
2878 * This is used by the GIMP, and works.
2880 GIOChannel *g_io_channel_win32_new_pipe_with_wakeups (int fd,
2884 void g_io_channel_win32_pipe_request_wakeups (GIOChannel *channel,
2888 void g_io_channel_win32_pipe_readable (int fd,
2891 /* Get the C runtime file descriptor of a channel. */
2892 gint g_io_channel_win32_get_fd (GIOChannel *channel);
2894 /* An IO channel for a SOCK_STREAM winsock socket. The parameter is
2895 * actually a SOCKET.
2897 GIOChannel *g_io_channel_win32_new_stream_socket (int socket);
2901 /* Windows emulation stubs for common Unix functions
2904 # define MAXPATHLEN 1024
2911 * To get prototypes for the following POSIXish functions, you have to
2912 * include the indicated non-POSIX headers. The functions are defined
2913 * in OLDNAMES.LIB (MSVC) or -lmoldname-msvc (mingw32).
2915 * getcwd: <direct.h> (MSVC), <io.h> (mingw32)
2916 * getpid: <process.h>
2918 * unlink: <stdio.h> or <io.h>
2919 * open, read, write, lseek, close: <io.h>
2924 /* pipe is not in OLDNAMES.LIB or -lmoldname-msvc. */
2925 #define pipe(phandles) _pipe (phandles, 4096, _O_BINARY)
2927 /* For some POSIX functions that are not provided by the MS runtime,
2928 * we provide emulators in glib, which are prefixed with g_win32_.
2930 # define ftruncate(fd, size) g_win32_ftruncate (fd, size)
2932 /* -lmingw32 also has emulations for these, but we need our own
2933 * for MSVC anyhow, so we might aswell use them always.
2935 # define opendir g_win32_opendir
2936 # define readdir g_win32_readdir
2937 # define rewinddir g_win32_rewinddir
2938 # define closedir g_win32_closedir
2939 # define NAME_MAX 255
2944 gboolean just_opened;
2945 guint find_file_handle;
2946 gpointer find_file_data;
2948 typedef struct DIR DIR;
2951 gchar d_name[NAME_MAX + 1];
2953 /* emulation functions */
2954 extern int g_win32_ftruncate (gint f,
2956 DIR* g_win32_opendir (const gchar *dirname);
2957 struct dirent* g_win32_readdir (DIR *dir);
2958 void g_win32_rewinddir (DIR *dir);
2959 gint g_win32_closedir (DIR *dir);
2961 /* The MS setlocale uses locale names of the form "English_United
2962 * States.1252" etc. We want the Unixish standard form "en", "zh_TW"
2963 * etc. This function gets the current thread locale from Windows and
2964 * returns it as a string of the above form for use in forming file
2965 * names etc. The returned string should be deallocated with g_free().
2967 gchar * g_win32_getlocale (void);
2969 /* Translate a Win32 error code (as returned by GetLastError()) into
2970 * the corresponding message. The returned string should be deallocated
2973 gchar * g_win32_error_message (gint error);
2975 #endif /* G_OS_WIN32 */
2978 /* GLib Thread support
2981 typedef void (*GThreadFunc) (gpointer value);
2985 G_THREAD_PRIORITY_LOW,
2986 G_THREAD_PRIORITY_NORMAL,
2987 G_THREAD_PRIORITY_HIGH,
2988 G_THREAD_PRIORITY_URGENT
2991 typedef struct _GThread GThread;
2994 GThreadPriority priority;
2999 typedef struct _GMutex GMutex;
3000 typedef struct _GCond GCond;
3001 typedef struct _GPrivate GPrivate;
3002 typedef struct _GStaticPrivate GStaticPrivate;
3003 typedef struct _GAsyncQueue GAsyncQueue;
3004 typedef struct _GThreadPool GThreadPool;
3006 typedef struct _GThreadFunctions GThreadFunctions;
3007 struct _GThreadFunctions
3009 GMutex* (*mutex_new) (void);
3010 void (*mutex_lock) (GMutex *mutex);
3011 gboolean (*mutex_trylock) (GMutex *mutex);
3012 void (*mutex_unlock) (GMutex *mutex);
3013 void (*mutex_free) (GMutex *mutex);
3014 GCond* (*cond_new) (void);
3015 void (*cond_signal) (GCond *cond);
3016 void (*cond_broadcast) (GCond *cond);
3017 void (*cond_wait) (GCond *cond,
3019 gboolean (*cond_timed_wait) (GCond *cond,
3021 GTimeVal *end_time);
3022 void (*cond_free) (GCond *cond);
3023 GPrivate* (*private_new) (GDestroyNotify destructor);
3024 gpointer (*private_get) (GPrivate *private_key);
3025 void (*private_set) (GPrivate *private_key,
3027 void (*thread_create) (GThreadFunc thread_func,
3032 GThreadPriority priority,
3034 void (*thread_yield) (void);
3035 void (*thread_join) (gpointer thread);
3036 void (*thread_exit) (void);
3037 void (*thread_set_priority)(gpointer thread,
3038 GThreadPriority priority);
3039 void (*thread_self) (gpointer thread);
3042 GLIB_VAR GThreadFunctions g_thread_functions_for_glib_use;
3043 GLIB_VAR gboolean g_thread_use_default_impl;
3044 GLIB_VAR gboolean g_threads_got_initialized;
3046 /* initializes the mutex/cond/private implementation for glib, might
3047 * only be called once, and must not be called directly or indirectly
3048 * from another glib-function, e.g. as a callback.
3050 void g_thread_init (GThreadFunctions *vtable);
3052 /* internal function for fallback static mutex implementation */
3053 GMutex* g_static_mutex_get_mutex_impl (GMutex **mutex);
3055 /* shorthands for conditional and unconditional function calls */
3056 #define G_THREAD_UF(name, arglist) \
3057 (*g_thread_functions_for_glib_use . name) arglist
3058 #define G_THREAD_CF(name, fail, arg) \
3059 (g_thread_supported () ? G_THREAD_UF (name, arg) : (fail))
3060 /* keep in mind, all those mutexes and static mutexes are not
3061 * recursive in general, don't rely on that
3063 #define g_thread_supported() (g_threads_got_initialized)
3064 #define g_mutex_new() G_THREAD_UF (mutex_new, ())
3065 #define g_mutex_lock(mutex) G_THREAD_CF (mutex_lock, (void)0, (mutex))
3066 #define g_mutex_trylock(mutex) G_THREAD_CF (mutex_trylock, TRUE, (mutex))
3067 #define g_mutex_unlock(mutex) G_THREAD_CF (mutex_unlock, (void)0, (mutex))
3068 #define g_mutex_free(mutex) G_THREAD_CF (mutex_free, (void)0, (mutex))
3069 #define g_cond_new() G_THREAD_UF (cond_new, ())
3070 #define g_cond_signal(cond) G_THREAD_CF (cond_signal, (void)0, (cond))
3071 #define g_cond_broadcast(cond) G_THREAD_CF (cond_broadcast, (void)0, (cond))
3072 #define g_cond_wait(cond, mutex) G_THREAD_CF (cond_wait, (void)0, (cond, \
3074 #define g_cond_free(cond) G_THREAD_CF (cond_free, (void)0, (cond))
3075 #define g_cond_timed_wait(cond, mutex, abs_time) G_THREAD_CF (cond_timed_wait, \
3079 #define g_private_new(destructor) G_THREAD_UF (private_new, (destructor))
3080 #define g_private_get(private_key) G_THREAD_CF (private_get, \
3081 ((gpointer)private_key), \
3083 #define g_private_set(private_key, value) G_THREAD_CF (private_set, \
3084 (void) (private_key = \
3085 (GPrivate*) (value)), \
3086 (private_key, value))
3087 #define g_thread_yield() G_THREAD_CF (thread_yield, (void)0, ())
3088 #define g_thread_exit() G_THREAD_CF (thread_exit, (void)0, ())
3090 GThread* g_thread_create (GThreadFunc thread_func,
3095 GThreadPriority priority);
3096 GThread* g_thread_self ();
3097 void g_thread_join (GThread* thread);
3098 void g_thread_set_priority (GThread* thread,
3099 GThreadPriority priority);
3101 /* GStaticMutexes can be statically initialized with the value
3102 * G_STATIC_MUTEX_INIT, and then they can directly be used, that is
3103 * much easier, than having to explicitly allocate the mutex before
3106 #define g_static_mutex_lock(mutex) \
3107 g_mutex_lock (g_static_mutex_get_mutex (mutex))
3108 #define g_static_mutex_trylock(mutex) \
3109 g_mutex_trylock (g_static_mutex_get_mutex (mutex))
3110 #define g_static_mutex_unlock(mutex) \
3111 g_mutex_unlock (g_static_mutex_get_mutex (mutex))
3113 struct _GStaticPrivate
3117 #define G_STATIC_PRIVATE_INIT { 0 }
3118 gpointer g_static_private_get (GStaticPrivate *private_key);
3119 void g_static_private_set (GStaticPrivate *private_key,
3121 GDestroyNotify notify);
3122 gpointer g_static_private_get_for_thread (GStaticPrivate *private_key,
3124 void g_static_private_set_for_thread (GStaticPrivate *private_key,
3127 GDestroyNotify notify);
3129 typedef struct _GStaticRecMutex GStaticRecMutex;
3130 struct _GStaticRecMutex
3134 GSystemThread owner;
3137 #define G_STATIC_REC_MUTEX_INIT { G_STATIC_MUTEX_INIT }
3138 void g_static_rec_mutex_lock (GStaticRecMutex *mutex);
3139 gboolean g_static_rec_mutex_trylock (GStaticRecMutex *mutex);
3140 void g_static_rec_mutex_unlock (GStaticRecMutex *mutex);
3141 void g_static_rec_mutex_lock_full (GStaticRecMutex *mutex,
3143 guint g_static_rec_mutex_unlock_full (GStaticRecMutex *mutex);
3145 typedef struct _GStaticRWLock GStaticRWLock;
3146 struct _GStaticRWLock
3153 guint want_to_write;
3156 #define G_STATIC_RW_LOCK_INIT { G_STATIC_MUTEX_INIT, NULL, NULL, 0, FALSE, FALSE }
3158 void g_static_rw_lock_reader_lock (GStaticRWLock* lock);
3159 gboolean g_static_rw_lock_reader_trylock (GStaticRWLock* lock);
3160 void g_static_rw_lock_reader_unlock (GStaticRWLock* lock);
3161 void g_static_rw_lock_writer_lock (GStaticRWLock* lock);
3162 gboolean g_static_rw_lock_writer_trylock (GStaticRWLock* lock);
3163 void g_static_rw_lock_writer_unlock (GStaticRWLock* lock);
3164 void g_static_rw_lock_free (GStaticRWLock* lock);
3166 /* these are some convenience macros that expand to nothing if GLib
3167 * was configured with --disable-threads. for using StaticMutexes,
3168 * you define them with G_LOCK_DEFINE_STATIC (name) or G_LOCK_DEFINE (name)
3169 * if you need to export the mutex. With G_LOCK_EXTERN (name) you can
3170 * declare such an globally defined lock. name is a unique identifier
3171 * for the protected varibale or code portion. locking, testing and
3172 * unlocking of such mutexes can be done with G_LOCK(), G_UNLOCK() and
3173 * G_TRYLOCK() respectively.
3175 extern void glib_dummy_decl (void);
3176 #define G_LOCK_NAME(name) g__ ## name ## _lock
3177 #ifdef G_THREADS_ENABLED
3178 # define G_LOCK_DEFINE_STATIC(name) static G_LOCK_DEFINE (name)
3179 # define G_LOCK_DEFINE(name) \
3180 GStaticMutex G_LOCK_NAME (name) = G_STATIC_MUTEX_INIT
3181 # define G_LOCK_EXTERN(name) extern GStaticMutex G_LOCK_NAME (name)
3183 # ifdef G_DEBUG_LOCKS
3184 # define G_LOCK(name) G_STMT_START{ \
3185 g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \
3186 "file %s: line %d (%s): locking: %s ", \
3187 __FILE__, __LINE__, G_GNUC_PRETTY_FUNCTION, \
3189 g_static_mutex_lock (&G_LOCK_NAME (name)); \
3191 # define G_UNLOCK(name) G_STMT_START{ \
3192 g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \
3193 "file %s: line %d (%s): unlocking: %s ", \
3194 __FILE__, __LINE__, G_GNUC_PRETTY_FUNCTION, \
3196 g_static_mutex_unlock (&G_LOCK_NAME (name)); \
3198 # define G_TRYLOCK(name) \
3199 (g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \
3200 "file %s: line %d (%s): try locking: %s ", \
3201 __FILE__, __LINE__, G_GNUC_PRETTY_FUNCTION, \
3202 #name), g_static_mutex_trylock (&G_LOCK_NAME (name)))
3203 # else /* !G_DEBUG_LOCKS */
3204 # define G_LOCK(name) g_static_mutex_lock (&G_LOCK_NAME (name))
3205 # define G_UNLOCK(name) g_static_mutex_unlock (&G_LOCK_NAME (name))
3206 # define G_TRYLOCK(name) g_static_mutex_trylock (&G_LOCK_NAME (name))
3207 # endif /* !G_DEBUG_LOCKS */
3208 #else /* !G_THREADS_ENABLED */
3209 # define G_LOCK_DEFINE_STATIC(name) extern void glib_dummy_decl (void)
3210 # define G_LOCK_DEFINE(name) extern void glib_dummy_decl (void)
3211 # define G_LOCK_EXTERN(name) extern void glib_dummy_decl (void)
3212 # define G_LOCK(name)
3213 # define G_UNLOCK(name)
3214 # define G_TRYLOCK(name) (TRUE)
3215 #endif /* !G_THREADS_ENABLED */
3217 /* Asyncronous Queues, can be used to communicate between threads
3220 /* Get a new GAsyncQueue with the ref_count 1 */
3221 GAsyncQueue* g_async_queue_new (void);
3223 /* Lock and unlock an GAsyncQueue, all functions lock the queue for
3224 * themselves, but in certain cirumstances you want to hold the lock longer,
3225 * thus you lock the queue, call the *_unlocked functions and unlock it again
3227 void g_async_queue_lock (GAsyncQueue *queue);
3228 void g_async_queue_unlock (GAsyncQueue *queue);
3230 /* Ref and unref the GAsyncQueue. g_async_queue_unref_unlocked makes
3231 * no sense, as after the unreffing the Queue might be gone and can't
3232 * be unlocked. So you have a function to call, if you don't hold the
3233 * lock (g_async_queue_unref) and one to call, when you already hold
3234 * the lock (g_async_queue_unref_and_unlock). After that however, you
3235 * don't hold the lock anymore and the Queue might in fact be
3236 * destroyed, if you unrefed to zero */
3237 void g_async_queue_ref (GAsyncQueue *queue);
3238 void g_async_queue_ref_unlocked (GAsyncQueue *queue);
3239 void g_async_queue_unref (GAsyncQueue *queue);
3240 void g_async_queue_unref_and_unlock (GAsyncQueue *queue);
3242 /* Push data into the async queue. Must not be NULL */
3243 void g_async_queue_push (GAsyncQueue *queue,
3245 void g_async_queue_push_unlocked (GAsyncQueue *queue,
3248 /* Pop data from the async queue, when no data is there, the thread is blocked
3249 * until data arrives */
3250 gpointer g_async_queue_pop (GAsyncQueue *queue);
3251 gpointer g_async_queue_pop_unlocked (GAsyncQueue *queue);
3253 /* Try to pop data, NULL is returned in case of empty queue */
3254 gpointer g_async_queue_try_pop (GAsyncQueue *queue);
3255 gpointer g_async_queue_try_pop_unlocked (GAsyncQueue *queue);
3257 /* Wait for data until at maximum until end_time is reached, NULL is returned
3258 * in case of empty queue*/
3259 gpointer g_async_queue_timed_pop (GAsyncQueue *queue,
3260 GTimeVal *end_time);
3261 gpointer g_async_queue_timed_pop_unlocked (GAsyncQueue *queue,
3262 GTimeVal *end_time);
3264 /* Return the length of the queue, negative values mean, that threads
3265 * are waiting, positve values mean, that there are entries in the
3266 * queue. Actually this function returns the length of the queue minus
3267 * the number of waiting threads, g_async_queue_length == 0 could also
3268 * mean 'n' entries in the queue and 'n' thread waiting, such can
3269 * happen due to locking of the queue or due to scheduling. */
3270 gint g_async_queue_length (GAsyncQueue *queue);
3271 gint g_async_queue_length_unlocked (GAsyncQueue *queue);
3276 /* The real GThreadPool is bigger, so you may only create a thread
3277 * pool with the constructor function */
3283 GThreadPriority priority;
3288 /* Get a thread pool with the function thread_func, at most max_threads may
3289 * run at a time (max_threads == -1 means no limit), stack_size, bound,
3290 * priority like in g_thread_create, exclusive == TRUE means, that the threads
3291 * shouldn't be shared and that they will be prestarted (otherwise they are
3292 * started, as needed) user_data is the 2nd argument to the thread_func */
3293 GThreadPool* g_thread_pool_new (GFunc thread_func,
3297 GThreadPriority priority,
3299 gpointer user_data);
3301 /* Push new data into the thread pool. This task is assigned to a thread later
3302 * (when the maximal number of threads is reached for that pool) or now
3303 * (otherwise). If necessary a new thread will be started. The function
3304 * returns immediatly */
3305 void g_thread_pool_push (GThreadPool *pool,
3308 /* Set the number of threads, which can run concurrently for that pool, -1
3309 * means no limit. 0 means has the effect, that the pool won't process
3310 * requests until the limit is set higher again */
3311 void g_thread_pool_set_max_threads (GThreadPool *pool,
3313 gint g_thread_pool_get_max_threads (GThreadPool *pool);
3315 /* Get the number of threads assigned to that pool. This number doesn't
3316 * necessarily represent the number of working threads in that pool */
3317 guint g_thread_pool_get_num_threads (GThreadPool *pool);
3319 /* Get the number of unprocessed items in the pool */
3320 guint g_thread_pool_unprocessed (GThreadPool *pool);
3322 /* Free the pool, immediate means, that all unprocessed items in the queue
3323 * wont be processed, wait means, that the function doesn't return immediatly,
3324 * but after all threads in the pool are ready processing items. immediate
3325 * does however not mean, that threads are killed. */
3326 void g_thread_pool_free (GThreadPool *pool,
3330 /* Set the maximal number of unused threads before threads will be stopped by
3331 * GLib, -1 means no limit */
3332 void g_thread_pool_set_max_unused_threads (gint max_threads);
3333 gint g_thread_pool_get_max_unused_threads (void);
3334 guint g_thread_pool_get_num_unused_threads (void);
3336 /* Stop all currently unused threads, but leave the limit untouched */
3337 void g_thread_pool_stop_unused_threads (void);
3341 #endif /* __cplusplus */
3343 #include <gunicode.h>
3346 #endif /* __G_LIB_H__ */