Copyright © 2009 Roozbeh Pournader
Copyright © 2008,2009 Red Hat, Inc.
Copyright © 2008 Danilo Šegan
+Copyright © 2012 Google, Inc.
Permission to use, copy, modify, distribute, and sell this software and its
libfontconfig_la_SOURCES = \
fcarch.h \
fcatomic.c \
+ fcatomic.h \
fcblanks.c \
fccache.c \
fccfg.c \
fclist.c \
fcmatch.c \
fcmatrix.c \
+ fcmutex.h \
fcname.c \
fcobjs.c \
fcobjs.h \
--- /dev/null
+/*
+ * Mutex operations. Originally copied from HarfBuzz.
+ *
+ * Copyright © 2007 Chris Wilson
+ * Copyright © 2009,2010 Red Hat, Inc.
+ * Copyright © 2011,2012 Google, Inc.
+ *
+ * This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Contributor(s):
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ * Red Hat Author(s): Behdad Esfahbod
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef _FCATOMIC_H_
+#define _FCATOMIC_H_
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+/* atomic_int */
+
+/* We need external help for these */
+
+#if 0
+
+
+#elif !defined(FC_NO_MT) && defined(_MSC_VER) || defined(__MINGW32__)
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+/* mingw32 does not have MemoryBarrier.
+ * MemoryBarrier may be defined as a macro or a function.
+ * Just make a failsafe version for ourselves. */
+#ifdef MemoryBarrier
+#define HBMemoryBarrier MemoryBarrier
+#else
+static inline void HBMemoryBarrier (void) {
+ long dummy = 0;
+ InterlockedExchange (&dummy, 1);
+}
+#endif
+
+typedef long fc_atomic_int_t;
+#define fc_atomic_int_add(AI, V) InterlockedExchangeAdd (&(AI), (V))
+
+#define fc_atomic_ptr_get(P) (HBMemoryBarrier (), (void *) *(P))
+#define fc_atomic_ptr_cmpexch(P,O,N) (InterlockedCompareExchangePointer ((void **) (P), (void *) (N), (void *) (O)) == (void *) (O))
+
+
+#elif !defined(FC_NO_MT) && defined(__APPLE__)
+
+#include <libkern/OSAtomic.h>
+
+typedef int32_t fc_atomic_int_t;
+#define fc_atomic_int_add(AI, V) (OSAtomicAdd32Barrier ((V), &(AI)) - (V))
+
+#define fc_atomic_ptr_get(P) (OSMemoryBarrier (), (void *) *(P))
+#define fc_atomic_ptr_cmpexch(P,O,N) OSAtomicCompareAndSwapPtrBarrier ((void *) (O), (void *) (N), (void **) (P))
+
+
+#elif !defined(FC_NO_MT) && defined(HAVE_INTEL_ATOMIC_PRIMITIVES)
+
+typedef int fc_atomic_int_t;
+#define fc_atomic_int_add(AI, V) __sync_fetch_and_add (&(AI), (V))
+
+#define fc_atomic_ptr_get(P) (void *) (__sync_synchronize (), *(P))
+#define fc_atomic_ptr_cmpexch(P,O,N) __sync_bool_compare_and_swap ((P), (O), (N))
+
+
+#elif !defined(FC_NO_MT)
+
+#define FC_ATOMIC_INT_NIL 1 /* Warn that fallback implementation is in use. */
+typedef volatile int fc_atomic_int_t;
+#define fc_atomic_int_add(AI, V) (((AI) += (V)) - (V))
+
+#define fc_atomic_ptr_get(P) ((void *) *(P))
+#define fc_atomic_ptr_cmpexch(P,O,N) (* (void * volatile *) (P) == (void *) (O) ? (* (void * volatile *) (P) = (void *) (N), true) : false)
+
+
+#else /* FC_NO_MT */
+
+typedef int fc_atomic_int_t;
+#define fc_atomic_int_add(AI, V) (((AI) += (V)) - (V))
+
+#define fc_atomic_ptr_get(P) ((void *) *(P))
+#define fc_atomic_ptr_cmpexch(P,O,N) (* (void **) (P) == (void *) (O) ? (* (void **) (P) = (void *) (N), true) : false)
+
+#endif
+
+/* reference count */
+#define FC_REF_CONSTANT ((fc_atomic_int_t) -1)
+#define FC_REF_CONSTANT_INIT {FC_REF_CONSTANT}
+typedef struct _FcRef { fc_atomic_int_t count; } FcRef;
+static inline void FcRefInit (FcRef *r, int v) { r->count = v; }
+static inline int FcRefInc (FcRef *r) { return fc_atomic_int_add (r->count, +1); }
+static inline int FcRefDec (FcRef *r) { return fc_atomic_int_add (r->count, -1); }
+static inline void FcRefFinish (FcRef *r) { r->count = FC_REF_CONSTANT; }
+static inline FcBool FcRefIsConst (FcRef *r) { return r->count == FC_REF_CONSTANT; }
+
+#endif /* _FCATOMIC_H_ */
#include <fontconfig/fontconfig.h>
#include <fontconfig/fcprivate.h>
#include "fcdeprecate.h"
+#include "fcmutex.h"
+#include "fcatomic.h"
#ifndef FC_CONFIG_PATH
#define FC_CONFIG_PATH "fonts.conf"
FcChar32 map[256/32];
} FcCharLeaf;
-#define FC_REF_CONSTANT -1
-
struct _FcCharSet {
int ref; /* reference count */
int num; /* size of leaves and numbers arrays */
--- /dev/null
+/*
+ * Atomic int and pointer operations. Originally copied from HarfBuzz.
+ *
+ * Copyright © 2007 Chris Wilson
+ * Copyright © 2009,2010 Red Hat, Inc.
+ * Copyright © 2011,2012 Google, Inc.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Contributor(s):
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ * Red Hat Author(s): Behdad Esfahbod
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef _FCMUTEX_H_
+#define _FCMUTEX_H_
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+/* mutex */
+
+/* We need external help for these */
+
+#if 0
+
+
+#elif !defined(FC_NO_MT) && defined(_MSC_VER) || defined(__MINGW32__)
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+typedef CRITICAL_SECTION fc_mutex_impl_t;
+#define FC_MUTEX_IMPL_INIT { NULL, 0, 0, NULL, NULL, 0 }
+#define fc_mutex_impl_init(M) InitializeCriticalSection (M)
+#define fc_mutex_impl_lock(M) EnterCriticalSection (M)
+#define fc_mutex_impl_unlock(M) LeaveCriticalSection (M)
+#define fc_mutex_impl_finish(M) DeleteCriticalSection (M)
+
+
+#elif !defined(FC_NO_MT) && (defined(HAVE_PTHREAD) || defined(__APPLE__))
+
+#include <pthread.h>
+typedef pthread_mutex_t fc_mutex_impl_t;
+#define FC_MUTEX_IMPL_INIT PTHREAD_MUTEX_INITIALIZER
+#define fc_mutex_impl_init(M) pthread_mutex_init (M, NULL)
+#define fc_mutex_impl_lock(M) pthread_mutex_lock (M)
+#define fc_mutex_impl_unlock(M) pthread_mutex_unlock (M)
+#define fc_mutex_impl_finish(M) pthread_mutex_destroy (M)
+
+
+#elif !defined(FC_NO_MT) && defined(HAVE_INTEL_ATOMIC_PRIMITIVES)
+
+#if defined(HAVE_SCHED_H) && defined(HAVE_SCHED_YIELD)
+# include <sched.h>
+# define FC_SCHED_YIELD() sched_yield ()
+#else
+# define FC_SCHED_YIELD() FC_STMT_START {} FC_STMT_END
+#endif
+
+/* This actually is not a totally awful implementation. */
+typedef volatile int fc_mutex_impl_t;
+#define FC_MUTEX_IMPL_INIT 0
+#define fc_mutex_impl_init(M) *(M) = 0
+#define fc_mutex_impl_lock(M) FC_STMT_START { while (__sync_lock_test_and_set((M), 1)) FC_SCHED_YIELD (); } FC_STMT_END
+#define fc_mutex_impl_unlock(M) __sync_lock_release (M)
+#define fc_mutex_impl_finish(M) FC_STMT_START {} FC_STMT_END
+
+
+#elif !defined(FC_NO_MT)
+
+#if defined(HAVE_SCHED_H) && defined(HAVE_SCHED_YIELD)
+# include <sched.h>
+# define FC_SCHED_YIELD() sched_yield ()
+#else
+# define FC_SCHED_YIELD() FC_STMT_START {} FC_STMT_END
+#endif
+
+#define FC_MUTEX_INT_NIL 1 /* Warn that fallback implementation is in use. */
+typedef volatile int fc_mutex_impl_t;
+#define FC_MUTEX_IMPL_INIT 0
+#define fc_mutex_impl_init(M) *(M) = 0
+#define fc_mutex_impl_lock(M) FC_STMT_START { while (*(M)) FC_SCHED_YIELD (); (*(M))++; } FC_STMT_END
+#define fc_mutex_impl_unlock(M) (*(M))--;
+#define fc_mutex_impl_finish(M) FC_STMT_START {} FC_STMT_END
+
+
+#else /* FC_NO_MT */
+
+typedef int fc_mutex_impl_t;
+#define FC_MUTEX_IMPL_INIT 0
+#define fc_mutex_impl_init(M) FC_STMT_START {} FC_STMT_END
+#define fc_mutex_impl_lock(M) FC_STMT_START {} FC_STMT_END
+#define fc_mutex_impl_unlock(M) FC_STMT_START {} FC_STMT_END
+#define fc_mutex_impl_finish(M) FC_STMT_START {} FC_STMT_END
+
+#endif
+
+
+#define FC_MUTEX_INIT {FC_MUTEX_IMPL_INIT}
+typedef fc_mutex_impl_t FcMutex;
+static inline void FcMutexInit (FcMutex *m) { fc_mutex_impl_init (m); }
+static inline void FcMutexLock (FcMutex *m) { fc_mutex_impl_lock (m); }
+static inline void FcMutexUnlock (FcMutex *m) { fc_mutex_impl_unlock (m); }
+static inline void FcMutexFinish (FcMutex *m) { fc_mutex_impl_finish (m); }
+
+
+#endif /* _FCMUTEX_H_ */
projects / platform / upstream / fontconfig.git / commitdiff