License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#ifndef _PTHREAD_H
-#define _PTHREAD_H 1
-
-#include <features.h>
-#include <endian.h>
-#include <sched.h>
-#include <time.h>
-
-#include <bits/pthreadtypes.h>
-#include <bits/setjmp.h>
-#include <bits/wordsize.h>
-
-
-/* Detach state. */
-enum
-{
- PTHREAD_CREATE_JOINABLE,
-#define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_JOINABLE
- PTHREAD_CREATE_DETACHED
-#define PTHREAD_CREATE_DETACHED PTHREAD_CREATE_DETACHED
-};
-
-
-/* Mutex types. */
-enum
-{
- PTHREAD_MUTEX_TIMED_NP,
- PTHREAD_MUTEX_RECURSIVE_NP,
- PTHREAD_MUTEX_ERRORCHECK_NP,
- PTHREAD_MUTEX_ADAPTIVE_NP
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
- ,
- PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP,
- PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP,
- PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP,
- PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
-#endif
-#ifdef __USE_GNU
- /* For compatibility. */
- , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_TIMED_NP
-#endif
-};
-
-
-#ifdef __USE_XOPEN2K
-/* Robust mutex or not flags. */
-enum
-{
- PTHREAD_MUTEX_STALLED,
- PTHREAD_MUTEX_STALLED_NP = PTHREAD_MUTEX_STALLED,
- PTHREAD_MUTEX_ROBUST,
- PTHREAD_MUTEX_ROBUST_NP = PTHREAD_MUTEX_ROBUST
-};
-#endif
-
-
-#if defined __USE_POSIX199506 || defined __USE_UNIX98
-/* Mutex protocols. */
-enum
-{
- PTHREAD_PRIO_NONE,
- PTHREAD_PRIO_INHERIT,
- PTHREAD_PRIO_PROTECT
-};
-#endif
-
-
-/* Mutex initializers. */
-#ifdef __PTHREAD_MUTEX_HAVE_PREV
-# define PTHREAD_MUTEX_INITIALIZER \
- { { 0, 0, 0, 0, 0, 0, { 0, 0 } } }
-# ifdef __USE_GNU
-# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \
- { { 0, 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0, 0 } } }
-# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \
- { { 0, 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0, 0 } } }
-# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \
- { { 0, 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0, 0 } } }
-# endif
-#else
-# define PTHREAD_MUTEX_INITIALIZER \
- { { 0, 0, 0, 0, 0, { 0 } } }
-# ifdef __USE_GNU
-# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \
- { { 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0 } } }
-# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \
- { { 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0 } } }
-# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \
- { { 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0 } } }
-# endif
-#endif
-
-
-/* Read-write lock types. */
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K
-enum
-{
- PTHREAD_RWLOCK_PREFER_READER_NP,
- PTHREAD_RWLOCK_PREFER_WRITER_NP,
- PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,
- PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP
-};
-
-/* Define __PTHREAD_RWLOCK_INT_FLAGS_SHARED to 1 if pthread_rwlock_t
- has the shared field. All 64-bit architectures have the shared field
- in pthread_rwlock_t. */
-#ifndef __PTHREAD_RWLOCK_INT_FLAGS_SHARED
-# if __WORDSIZE == 64
-# define __PTHREAD_RWLOCK_INT_FLAGS_SHARED 1
-# endif
-#endif
-
-/* Read-write lock initializers. */
-# define PTHREAD_RWLOCK_INITIALIZER \
- { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }
-# ifdef __USE_GNU
-# ifdef __PTHREAD_RWLOCK_INT_FLAGS_SHARED
-# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
- { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
- PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP } }
-# else
-# if __BYTE_ORDER == __LITTLE_ENDIAN
-# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
- { { 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, \
- 0, 0, 0, 0 } }
-# else
-# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
- { { 0, 0, 0, 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,\
- 0 } }
-# endif
-# endif
-# endif
-#endif /* Unix98 or XOpen2K */
-
-
-/* Scheduler inheritance. */
-enum
-{
- PTHREAD_INHERIT_SCHED,
-#define PTHREAD_INHERIT_SCHED PTHREAD_INHERIT_SCHED
- PTHREAD_EXPLICIT_SCHED
-#define PTHREAD_EXPLICIT_SCHED PTHREAD_EXPLICIT_SCHED
-};
-
-
-/* Scope handling. */
-enum
-{
- PTHREAD_SCOPE_SYSTEM,
-#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_SYSTEM
- PTHREAD_SCOPE_PROCESS
-#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_PROCESS
-};
-
-
-/* Process shared or private flag. */
-enum
-{
- PTHREAD_PROCESS_PRIVATE,
-#define PTHREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE
- PTHREAD_PROCESS_SHARED
-#define PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_SHARED
-};
-
-
-
-/* Conditional variable handling. */
-#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, 0, 0, (void *) 0, 0, 0 } }
-
-
-/* Cleanup buffers */
-struct _pthread_cleanup_buffer
-{
- void (*__routine) (void *); /* Function to call. */
- void *__arg; /* Its argument. */
- int __canceltype; /* Saved cancellation type. */
- struct _pthread_cleanup_buffer *__prev; /* Chaining of cleanup functions. */
-};
-
-/* Cancellation */
-enum
-{
- PTHREAD_CANCEL_ENABLE,
-#define PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_ENABLE
- PTHREAD_CANCEL_DISABLE
-#define PTHREAD_CANCEL_DISABLE PTHREAD_CANCEL_DISABLE
-};
-enum
-{
- PTHREAD_CANCEL_DEFERRED,
-#define PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DEFERRED
- PTHREAD_CANCEL_ASYNCHRONOUS
-#define PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ASYNCHRONOUS
-};
-#define PTHREAD_CANCELED ((void *) -1)
-
-
-/* Single execution handling. */
-#define PTHREAD_ONCE_INIT 0
-
-
-#ifdef __USE_XOPEN2K
-/* Value returned by 'pthread_barrier_wait' for one of the threads after
- the required number of threads have called this function.
- -1 is distinct from 0 and all errno constants */
-# define PTHREAD_BARRIER_SERIAL_THREAD -1
-#endif
-
-
-__BEGIN_DECLS
-
-/* Create a new thread, starting with execution of START-ROUTINE
- getting passed ARG. Creation attributed come from ATTR. The new
- handle is stored in *NEWTHREAD. */
-extern int pthread_create (pthread_t *__restrict __newthread,
- const pthread_attr_t *__restrict __attr,
- void *(*__start_routine) (void *),
- void *__restrict __arg) __THROWNL __nonnull ((1, 3));
-
-/* Terminate calling thread.
-
- The registered cleanup handlers are called via exception handling
- so we cannot mark this function with __THROW.*/
-extern void pthread_exit (void *__retval) __attribute__ ((__noreturn__));
-
-/* Make calling thread wait for termination of the thread TH. The
- exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN
- is not NULL.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int pthread_join (pthread_t __th, void **__thread_return);
-
-#ifdef __USE_GNU
-/* Check whether thread TH has terminated. If yes return the status of
- the thread in *THREAD_RETURN, if THREAD_RETURN is not NULL. */
-extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) __THROW;
-
-/* Make calling thread wait for termination of the thread TH, but only
- until TIMEOUT. The exit status of the thread is stored in
- *THREAD_RETURN, if THREAD_RETURN is not NULL.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int pthread_timedjoin_np (pthread_t __th, void **__thread_return,
- const struct timespec *__abstime);
-#endif
-
-/* Indicate that the thread TH is never to be joined with PTHREAD_JOIN.
- The resources of TH will therefore be freed immediately when it
- terminates, instead of waiting for another thread to perform PTHREAD_JOIN
- on it. */
-extern int pthread_detach (pthread_t __th) __THROW;
-
-
-/* Obtain the identifier of the current thread. */
-extern pthread_t pthread_self (void) __THROW __attribute__ ((__const__));
-
-/* Compare two thread identifiers. */
-extern int pthread_equal (pthread_t __thread1, pthread_t __thread2)
- __THROW __attribute__ ((__const__));
-
-
-/* Thread attribute handling. */
-
-/* Initialize thread attribute *ATTR with default attributes
- (detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER,
- no user-provided stack). */
-extern int pthread_attr_init (pthread_attr_t *__attr) __THROW __nonnull ((1));
-
-/* Destroy thread attribute *ATTR. */
-extern int pthread_attr_destroy (pthread_attr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Get detach state attribute. */
-extern int pthread_attr_getdetachstate (const pthread_attr_t *__attr,
- int *__detachstate)
- __THROW __nonnull ((1, 2));
-
-/* Set detach state attribute. */
-extern int pthread_attr_setdetachstate (pthread_attr_t *__attr,
- int __detachstate)
- __THROW __nonnull ((1));
-
-
-/* Get the size of the guard area created for stack overflow protection. */
-extern int pthread_attr_getguardsize (const pthread_attr_t *__attr,
- size_t *__guardsize)
- __THROW __nonnull ((1, 2));
-
-/* Set the size of the guard area created for stack overflow protection. */
-extern int pthread_attr_setguardsize (pthread_attr_t *__attr,
- size_t __guardsize)
- __THROW __nonnull ((1));
-
-
-/* Return in *PARAM the scheduling parameters of *ATTR. */
-extern int pthread_attr_getschedparam (const pthread_attr_t *__restrict __attr,
- struct sched_param *__restrict __param)
- __THROW __nonnull ((1, 2));
-
-/* Set scheduling parameters (priority, etc) in *ATTR according to PARAM. */
-extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr,
- const struct sched_param *__restrict
- __param) __THROW __nonnull ((1, 2));
-
-/* Return in *POLICY the scheduling policy of *ATTR. */
-extern int pthread_attr_getschedpolicy (const pthread_attr_t *__restrict
- __attr, int *__restrict __policy)
- __THROW __nonnull ((1, 2));
-
-/* Set scheduling policy in *ATTR according to POLICY. */
-extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy)
- __THROW __nonnull ((1));
-
-/* Return in *INHERIT the scheduling inheritance mode of *ATTR. */
-extern int pthread_attr_getinheritsched (const pthread_attr_t *__restrict
- __attr, int *__restrict __inherit)
- __THROW __nonnull ((1, 2));
-
-/* Set scheduling inheritance mode in *ATTR according to INHERIT. */
-extern int pthread_attr_setinheritsched (pthread_attr_t *__attr,
- int __inherit)
- __THROW __nonnull ((1));
-
-
-/* Return in *SCOPE the scheduling contention scope of *ATTR. */
-extern int pthread_attr_getscope (const pthread_attr_t *__restrict __attr,
- int *__restrict __scope)
- __THROW __nonnull ((1, 2));
-
-/* Set scheduling contention scope in *ATTR according to SCOPE. */
-extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope)
- __THROW __nonnull ((1));
-
-/* Return the previously set address for the stack. */
-extern int pthread_attr_getstackaddr (const pthread_attr_t *__restrict
- __attr, void **__restrict __stackaddr)
- __THROW __nonnull ((1, 2)) __attribute_deprecated__;
-
-/* Set the starting address of the stack of the thread to be created.
- Depending on whether the stack grows up or down the value must either
- be higher or lower than all the address in the memory block. The
- minimal size of the block must be PTHREAD_STACK_MIN. */
-extern int pthread_attr_setstackaddr (pthread_attr_t *__attr,
- void *__stackaddr)
- __THROW __nonnull ((1)) __attribute_deprecated__;
-
-/* Return the currently used minimal stack size. */
-extern int pthread_attr_getstacksize (const pthread_attr_t *__restrict
- __attr, size_t *__restrict __stacksize)
- __THROW __nonnull ((1, 2));
-
-/* Add information about the minimum stack size needed for the thread
- to be started. This size must never be less than PTHREAD_STACK_MIN
- and must also not exceed the system limits. */
-extern int pthread_attr_setstacksize (pthread_attr_t *__attr,
- size_t __stacksize)
- __THROW __nonnull ((1));
-
-#ifdef __USE_XOPEN2K
-/* Return the previously set address for the stack. */
-extern int pthread_attr_getstack (const pthread_attr_t *__restrict __attr,
- void **__restrict __stackaddr,
- size_t *__restrict __stacksize)
- __THROW __nonnull ((1, 2, 3));
-
-/* The following two interfaces are intended to replace the last two. They
- require setting the address as well as the size since only setting the
- address will make the implementation on some architectures impossible. */
-extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr,
- size_t __stacksize) __THROW __nonnull ((1));
-#endif
-
-#ifdef __USE_GNU
-/* Thread created with attribute ATTR will be limited to run only on
- the processors represented in CPUSET. */
-extern int pthread_attr_setaffinity_np (pthread_attr_t *__attr,
- size_t __cpusetsize,
- const cpu_set_t *__cpuset)
- __THROW __nonnull ((1, 3));
-
-/* Get bit set in CPUSET representing the processors threads created with
- ATTR can run on. */
-extern int pthread_attr_getaffinity_np (const pthread_attr_t *__attr,
- size_t __cpusetsize,
- cpu_set_t *__cpuset)
- __THROW __nonnull ((1, 3));
-
-
-/* Initialize thread attribute *ATTR with attributes corresponding to the
- already running thread TH. It shall be called on uninitialized ATTR
- and destroyed with pthread_attr_destroy when no longer needed. */
-extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr)
- __THROW __nonnull ((2));
-#endif
-
-
-/* Functions for scheduling control. */
-
-/* Set the scheduling parameters for TARGET_THREAD according to POLICY
- and *PARAM. */
-extern int pthread_setschedparam (pthread_t __target_thread, int __policy,
- const struct sched_param *__param)
- __THROW __nonnull ((3));
-
-/* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */
-extern int pthread_getschedparam (pthread_t __target_thread,
- int *__restrict __policy,
- struct sched_param *__restrict __param)
- __THROW __nonnull ((2, 3));
-
-/* Set the scheduling priority for TARGET_THREAD. */
-extern int pthread_setschedprio (pthread_t __target_thread, int __prio)
- __THROW;
-
-
-#ifdef __USE_GNU
-/* Get thread name visible in the kernel and its interfaces. */
-extern int pthread_getname_np (pthread_t __target_thread, char *__buf,
- size_t __buflen)
- __THROW __nonnull ((2));
-
-/* Set thread name visible in the kernel and its interfaces. */
-extern int pthread_setname_np (pthread_t __target_thread, const char *__name)
- __THROW __nonnull ((2));
-#endif
-
-
-#ifdef __USE_UNIX98
-/* Determine level of concurrency. */
-extern int pthread_getconcurrency (void) __THROW;
-
-/* Set new concurrency level to LEVEL. */
-extern int pthread_setconcurrency (int __level) __THROW;
-#endif
-
-#ifdef __USE_GNU
-/* Yield the processor to another thread or process.
- This function is similar to the POSIX `sched_yield' function but
- might be differently implemented in the case of a m-on-n thread
- implementation. */
-extern int pthread_yield (void) __THROW;
-
-
-/* Limit specified thread TH to run only on the processors represented
- in CPUSET. */
-extern int pthread_setaffinity_np (pthread_t __th, size_t __cpusetsize,
- const cpu_set_t *__cpuset)
- __THROW __nonnull ((3));
-
-/* Get bit set in CPUSET representing the processors TH can run on. */
-extern int pthread_getaffinity_np (pthread_t __th, size_t __cpusetsize,
- cpu_set_t *__cpuset)
- __THROW __nonnull ((3));
-#endif
-
-
-/* Functions for handling initialization. */
-
-/* Guarantee that the initialization function INIT_ROUTINE will be called
- only once, even if pthread_once is executed several times with the
- same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or
- extern variable initialized to PTHREAD_ONCE_INIT.
-
- The initialization functions might throw exception which is why
- this function is not marked with __THROW. */
-extern int pthread_once (pthread_once_t *__once_control,
- void (*__init_routine) (void)) __nonnull ((1, 2));
-
-
-/* Functions for handling cancellation.
-
- Note that these functions are explicitly not marked to not throw an
- exception in C++ code. If cancellation is implemented by unwinding
- this is necessary to have the compiler generate the unwind information. */
-
-/* Set cancelability state of current thread to STATE, returning old
- state in *OLDSTATE if OLDSTATE is not NULL. */
-extern int pthread_setcancelstate (int __state, int *__oldstate);
-
-/* Set cancellation state of current thread to TYPE, returning the old
- type in *OLDTYPE if OLDTYPE is not NULL. */
-extern int pthread_setcanceltype (int __type, int *__oldtype);
-
-/* Cancel THREAD immediately or at the next possibility. */
-extern int pthread_cancel (pthread_t __th);
-
-/* Test for pending cancellation for the current thread and terminate
- the thread as per pthread_exit(PTHREAD_CANCELED) if it has been
- cancelled. */
-extern void pthread_testcancel (void);
-
-
-/* Cancellation handling with integration into exception handling. */
-
-typedef struct
-{
- struct
- {
- __jmp_buf __cancel_jmp_buf;
- int __mask_was_saved;
- } __cancel_jmp_buf[1];
- void *__pad[4];
-} __pthread_unwind_buf_t __attribute__ ((__aligned__));
-
-/* No special attributes by default. */
-#ifndef __cleanup_fct_attribute
-# define __cleanup_fct_attribute
-#endif
-
-
-/* Structure to hold the cleanup handler information. */
-struct __pthread_cleanup_frame
-{
- void (*__cancel_routine) (void *);
- void *__cancel_arg;
- int __do_it;
- int __cancel_type;
-};
-
-#if defined __GNUC__ && defined __EXCEPTIONS
-# ifdef __cplusplus
-/* Class to handle cancellation handler invocation. */
-class __pthread_cleanup_class
-{
- void (*__cancel_routine) (void *);
- void *__cancel_arg;
- int __do_it;
- int __cancel_type;
-
- public:
- __pthread_cleanup_class (void (*__fct) (void *), void *__arg)
- : __cancel_routine (__fct), __cancel_arg (__arg), __do_it (1) { }
- ~__pthread_cleanup_class () { if (__do_it) __cancel_routine (__cancel_arg); }
- void __setdoit (int __newval) { __do_it = __newval; }
- void __defer () { pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED,
- &__cancel_type); }
- void __restore () const { pthread_setcanceltype (__cancel_type, 0); }
-};
-
-/* Install a cleanup handler: ROUTINE will be called with arguments ARG
- when the thread is canceled or calls pthread_exit. ROUTINE will also
- be called with arguments ARG when the matching pthread_cleanup_pop
- is executed with non-zero EXECUTE argument.
-
- pthread_cleanup_push and pthread_cleanup_pop are macros and must always
- be used in matching pairs at the same nesting level of braces. */
-# define pthread_cleanup_push(routine, arg) \
- do { \
- __pthread_cleanup_class __clframe (routine, arg)
-
-/* Remove a cleanup handler installed by the matching pthread_cleanup_push.
- If EXECUTE is non-zero, the handler function is called. */
-# define pthread_cleanup_pop(execute) \
- __clframe.__setdoit (execute); \
- } while (0)
-
-# ifdef __USE_GNU
-/* Install a cleanup handler as pthread_cleanup_push does, but also
- saves the current cancellation type and sets it to deferred
- cancellation. */
-# define pthread_cleanup_push_defer_np(routine, arg) \
- do { \
- __pthread_cleanup_class __clframe (routine, arg); \
- __clframe.__defer ()
-
-/* Remove a cleanup handler as pthread_cleanup_pop does, but also
- restores the cancellation type that was in effect when the matching
- pthread_cleanup_push_defer was called. */
-# define pthread_cleanup_pop_restore_np(execute) \
- __clframe.__restore (); \
- __clframe.__setdoit (execute); \
- } while (0)
-# endif
-# else
-/* Function called to call the cleanup handler. As an extern inline
- function the compiler is free to decide inlining the change when
- needed or fall back on the copy which must exist somewhere
- else. */
-__extern_inline void
-__pthread_cleanup_routine (struct __pthread_cleanup_frame *__frame)
-{
- if (__frame->__do_it)
- __frame->__cancel_routine (__frame->__cancel_arg);
-}
-
-/* Install a cleanup handler: ROUTINE will be called with arguments ARG
- when the thread is canceled or calls pthread_exit. ROUTINE will also
- be called with arguments ARG when the matching pthread_cleanup_pop
- is executed with non-zero EXECUTE argument.
-
- pthread_cleanup_push and pthread_cleanup_pop are macros and must always
- be used in matching pairs at the same nesting level of braces. */
-# define pthread_cleanup_push(routine, arg) \
- do { \
- struct __pthread_cleanup_frame __clframe \
- __attribute__ ((__cleanup__ (__pthread_cleanup_routine))) \
- = { .__cancel_routine = (routine), .__cancel_arg = (arg), \
- .__do_it = 1 };
-
-/* Remove a cleanup handler installed by the matching pthread_cleanup_push.
- If EXECUTE is non-zero, the handler function is called. */
-# define pthread_cleanup_pop(execute) \
- __clframe.__do_it = (execute); \
- } while (0)
-
-# ifdef __USE_GNU
-/* Install a cleanup handler as pthread_cleanup_push does, but also
- saves the current cancellation type and sets it to deferred
- cancellation. */
-# define pthread_cleanup_push_defer_np(routine, arg) \
- do { \
- struct __pthread_cleanup_frame __clframe \
- __attribute__ ((__cleanup__ (__pthread_cleanup_routine))) \
- = { .__cancel_routine = (routine), .__cancel_arg = (arg), \
- .__do_it = 1 }; \
- (void) pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, \
- &__clframe.__cancel_type)
-
-/* Remove a cleanup handler as pthread_cleanup_pop does, but also
- restores the cancellation type that was in effect when the matching
- pthread_cleanup_push_defer was called. */
-# define pthread_cleanup_pop_restore_np(execute) \
- (void) pthread_setcanceltype (__clframe.__cancel_type, NULL); \
- __clframe.__do_it = (execute); \
- } while (0)
-# endif
-# endif
-#else
-/* Install a cleanup handler: ROUTINE will be called with arguments ARG
- when the thread is canceled or calls pthread_exit. ROUTINE will also
- be called with arguments ARG when the matching pthread_cleanup_pop
- is executed with non-zero EXECUTE argument.
-
- pthread_cleanup_push and pthread_cleanup_pop are macros and must always
- be used in matching pairs at the same nesting level of braces. */
-# define pthread_cleanup_push(routine, arg) \
- do { \
- __pthread_unwind_buf_t __cancel_buf; \
- void (*__cancel_routine) (void *) = (routine); \
- void *__cancel_arg = (arg); \
- int __not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \
- __cancel_buf.__cancel_jmp_buf, 0); \
- if (__glibc_unlikely (__not_first_call)) \
- { \
- __cancel_routine (__cancel_arg); \
- __pthread_unwind_next (&__cancel_buf); \
- /* NOTREACHED */ \
- } \
- \
- __pthread_register_cancel (&__cancel_buf); \
- do {
-extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf)
- __cleanup_fct_attribute;
-
-/* Remove a cleanup handler installed by the matching pthread_cleanup_push.
- If EXECUTE is non-zero, the handler function is called. */
-# define pthread_cleanup_pop(execute) \
- do { } while (0);/* Empty to allow label before pthread_cleanup_pop. */\
- } while (0); \
- __pthread_unregister_cancel (&__cancel_buf); \
- if (execute) \
- __cancel_routine (__cancel_arg); \
- } while (0)
-extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf)
- __cleanup_fct_attribute;
-
-# ifdef __USE_GNU
-/* Install a cleanup handler as pthread_cleanup_push does, but also
- saves the current cancellation type and sets it to deferred
- cancellation. */
-# define pthread_cleanup_push_defer_np(routine, arg) \
- do { \
- __pthread_unwind_buf_t __cancel_buf; \
- void (*__cancel_routine) (void *) = (routine); \
- void *__cancel_arg = (arg); \
- int __not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \
- __cancel_buf.__cancel_jmp_buf, 0); \
- if (__glibc_unlikely (__not_first_call)) \
- { \
- __cancel_routine (__cancel_arg); \
- __pthread_unwind_next (&__cancel_buf); \
- /* NOTREACHED */ \
- } \
- \
- __pthread_register_cancel_defer (&__cancel_buf); \
- do {
-extern void __pthread_register_cancel_defer (__pthread_unwind_buf_t *__buf)
- __cleanup_fct_attribute;
-
-/* Remove a cleanup handler as pthread_cleanup_pop does, but also
- restores the cancellation type that was in effect when the matching
- pthread_cleanup_push_defer was called. */
-# define pthread_cleanup_pop_restore_np(execute) \
- do { } while (0);/* Empty to allow label before pthread_cleanup_pop. */\
- } while (0); \
- __pthread_unregister_cancel_restore (&__cancel_buf); \
- if (execute) \
- __cancel_routine (__cancel_arg); \
- } while (0)
-extern void __pthread_unregister_cancel_restore (__pthread_unwind_buf_t *__buf)
- __cleanup_fct_attribute;
-# endif
-
-/* Internal interface to initiate cleanup. */
-extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf)
- __cleanup_fct_attribute __attribute__ ((__noreturn__))
-# ifndef SHARED
- __attribute__ ((__weak__))
-# endif
- ;
-#endif
-
-/* Function used in the macros. */
-struct __jmp_buf_tag;
-extern int __sigsetjmp (struct __jmp_buf_tag *__env, int __savemask) __THROWNL;
-
-
-/* Mutex handling. */
-
-/* Initialize a mutex. */
-extern int pthread_mutex_init (pthread_mutex_t *__mutex,
- const pthread_mutexattr_t *__mutexattr)
- __THROW __nonnull ((1));
-
-/* Destroy a mutex. */
-extern int pthread_mutex_destroy (pthread_mutex_t *__mutex)
- __THROW __nonnull ((1));
-
-/* Try locking a mutex. */
-extern int pthread_mutex_trylock (pthread_mutex_t *__mutex)
- __THROWNL __nonnull ((1));
-
-/* Lock a mutex. */
-extern int pthread_mutex_lock (pthread_mutex_t *__mutex)
- __THROWNL __nonnull ((1));
-
-#ifdef __USE_XOPEN2K
-/* Wait until lock becomes available, or specified time passes. */
-extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
- const struct timespec *__restrict
- __abstime) __THROWNL __nonnull ((1, 2));
-#endif
-
-/* Unlock a mutex. */
-extern int pthread_mutex_unlock (pthread_mutex_t *__mutex)
- __THROWNL __nonnull ((1));
-
-
-/* Get the priority ceiling of MUTEX. */
-extern int pthread_mutex_getprioceiling (const pthread_mutex_t *
- __restrict __mutex,
- int *__restrict __prioceiling)
- __THROW __nonnull ((1, 2));
-
-/* Set the priority ceiling of MUTEX to PRIOCEILING, return old
- priority ceiling value in *OLD_CEILING. */
-extern int pthread_mutex_setprioceiling (pthread_mutex_t *__restrict __mutex,
- int __prioceiling,
- int *__restrict __old_ceiling)
- __THROW __nonnull ((1, 3));
-
-
-#ifdef __USE_XOPEN2K8
-/* Declare the state protected by MUTEX as consistent. */
-extern int pthread_mutex_consistent (pthread_mutex_t *__mutex)
- __THROW __nonnull ((1));
-# ifdef __USE_GNU
-extern int pthread_mutex_consistent_np (pthread_mutex_t *__mutex)
- __THROW __nonnull ((1));
-# endif
-#endif
-
-
-/* Functions for handling mutex attributes. */
-
-/* Initialize mutex attribute object ATTR with default attributes
- (kind is PTHREAD_MUTEX_TIMED_NP). */
-extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Destroy mutex attribute object ATTR. */
-extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Get the process-shared flag of the mutex attribute ATTR. */
-extern int pthread_mutexattr_getpshared (const pthread_mutexattr_t *
- __restrict __attr,
- int *__restrict __pshared)
- __THROW __nonnull ((1, 2));
-
-/* Set the process-shared flag of the mutex attribute ATTR. */
-extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr,
- int __pshared)
- __THROW __nonnull ((1));
-
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
-/* Return in *KIND the mutex kind attribute in *ATTR. */
-extern int pthread_mutexattr_gettype (const pthread_mutexattr_t *__restrict
- __attr, int *__restrict __kind)
- __THROW __nonnull ((1, 2));
-
-/* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_NORMAL,
- PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_ERRORCHECK, or
- PTHREAD_MUTEX_DEFAULT). */
-extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind)
- __THROW __nonnull ((1));
-#endif
-
-/* Return in *PROTOCOL the mutex protocol attribute in *ATTR. */
-extern int pthread_mutexattr_getprotocol (const pthread_mutexattr_t *
- __restrict __attr,
- int *__restrict __protocol)
- __THROW __nonnull ((1, 2));
-
-/* Set the mutex protocol attribute in *ATTR to PROTOCOL (either
- PTHREAD_PRIO_NONE, PTHREAD_PRIO_INHERIT, or PTHREAD_PRIO_PROTECT). */
-extern int pthread_mutexattr_setprotocol (pthread_mutexattr_t *__attr,
- int __protocol)
- __THROW __nonnull ((1));
-
-/* Return in *PRIOCEILING the mutex prioceiling attribute in *ATTR. */
-extern int pthread_mutexattr_getprioceiling (const pthread_mutexattr_t *
- __restrict __attr,
- int *__restrict __prioceiling)
- __THROW __nonnull ((1, 2));
-
-/* Set the mutex prioceiling attribute in *ATTR to PRIOCEILING. */
-extern int pthread_mutexattr_setprioceiling (pthread_mutexattr_t *__attr,
- int __prioceiling)
- __THROW __nonnull ((1));
-
-#ifdef __USE_XOPEN2K
-/* Get the robustness flag of the mutex attribute ATTR. */
-extern int pthread_mutexattr_getrobust (const pthread_mutexattr_t *__attr,
- int *__robustness)
- __THROW __nonnull ((1, 2));
-# ifdef __USE_GNU
-extern int pthread_mutexattr_getrobust_np (const pthread_mutexattr_t *__attr,
- int *__robustness)
- __THROW __nonnull ((1, 2));
-# endif
-
-/* Set the robustness flag of the mutex attribute ATTR. */
-extern int pthread_mutexattr_setrobust (pthread_mutexattr_t *__attr,
- int __robustness)
- __THROW __nonnull ((1));
-# ifdef __USE_GNU
-extern int pthread_mutexattr_setrobust_np (pthread_mutexattr_t *__attr,
- int __robustness)
- __THROW __nonnull ((1));
-# endif
-#endif
-
-
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K
-/* Functions for handling read-write locks. */
-
-/* Initialize read-write lock RWLOCK using attributes ATTR, or use
- the default values if later is NULL. */
-extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock,
- const pthread_rwlockattr_t *__restrict
- __attr) __THROW __nonnull ((1));
-
-/* Destroy read-write lock RWLOCK. */
-extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock)
- __THROW __nonnull ((1));
-
-/* Acquire read lock for RWLOCK. */
-extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock)
- __THROWNL __nonnull ((1));
-
-/* Try to acquire read lock for RWLOCK. */
-extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock)
- __THROWNL __nonnull ((1));
-
-# ifdef __USE_XOPEN2K
-/* Try to acquire read lock for RWLOCK or return after specfied time. */
-extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
- const struct timespec *__restrict
- __abstime) __THROWNL __nonnull ((1, 2));
-# endif
-
-/* Acquire write lock for RWLOCK. */
-extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock)
- __THROWNL __nonnull ((1));
-
-/* Try to acquire write lock for RWLOCK. */
-extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock)
- __THROWNL __nonnull ((1));
-
-# ifdef __USE_XOPEN2K
-/* Try to acquire write lock for RWLOCK or return after specfied time. */
-extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
- const struct timespec *__restrict
- __abstime) __THROWNL __nonnull ((1, 2));
-# endif
-
-/* Unlock RWLOCK. */
-extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock)
- __THROWNL __nonnull ((1));
-
-
-/* Functions for handling read-write lock attributes. */
-
-/* Initialize attribute object ATTR with default values. */
-extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Destroy attribute object ATTR. */
-extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Return current setting of process-shared attribute of ATTR in PSHARED. */
-extern int pthread_rwlockattr_getpshared (const pthread_rwlockattr_t *
- __restrict __attr,
- int *__restrict __pshared)
- __THROW __nonnull ((1, 2));
-
-/* Set process-shared attribute of ATTR to PSHARED. */
-extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr,
- int __pshared)
- __THROW __nonnull ((1));
-
-/* Return current setting of reader/writer preference. */
-extern int pthread_rwlockattr_getkind_np (const pthread_rwlockattr_t *
- __restrict __attr,
- int *__restrict __pref)
- __THROW __nonnull ((1, 2));
-
-/* Set reader/write preference. */
-extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr,
- int __pref) __THROW __nonnull ((1));
-#endif
-
-
-/* Functions for handling conditional variables. */
-
-/* Initialize condition variable COND using attributes ATTR, or use
- the default values if later is NULL. */
-extern int pthread_cond_init (pthread_cond_t *__restrict __cond,
- const pthread_condattr_t *__restrict __cond_attr)
- __THROW __nonnull ((1));
-
-/* Destroy condition variable COND. */
-extern int pthread_cond_destroy (pthread_cond_t *__cond)
- __THROW __nonnull ((1));
-
-/* Wake up one thread waiting for condition variable COND. */
-extern int pthread_cond_signal (pthread_cond_t *__cond)
- __THROWNL __nonnull ((1));
-
-/* Wake up all threads waiting for condition variables COND. */
-extern int pthread_cond_broadcast (pthread_cond_t *__cond)
- __THROWNL __nonnull ((1));
-
-/* Wait for condition variable COND to be signaled or broadcast.
- MUTEX is assumed to be locked before.
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int pthread_cond_wait (pthread_cond_t *__restrict __cond,
- pthread_mutex_t *__restrict __mutex)
- __nonnull ((1, 2));
-
-/* Wait for condition variable COND to be signaled or broadcast until
- ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an
- absolute time specification; zero is the beginning of the epoch
- (00:00:00 GMT, January 1, 1970).
-
- This function is a cancellation point and therefore not marked with
- __THROW. */
-extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
- pthread_mutex_t *__restrict __mutex,
- const struct timespec *__restrict __abstime)
- __nonnull ((1, 2, 3));
-
-/* Functions for handling condition variable attributes. */
-
-/* Initialize condition variable attribute ATTR. */
-extern int pthread_condattr_init (pthread_condattr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Destroy condition variable attribute ATTR. */
-extern int pthread_condattr_destroy (pthread_condattr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Get the process-shared flag of the condition variable attribute ATTR. */
-extern int pthread_condattr_getpshared (const pthread_condattr_t *
- __restrict __attr,
- int *__restrict __pshared)
- __THROW __nonnull ((1, 2));
-
-/* Set the process-shared flag of the condition variable attribute ATTR. */
-extern int pthread_condattr_setpshared (pthread_condattr_t *__attr,
- int __pshared) __THROW __nonnull ((1));
-
-#ifdef __USE_XOPEN2K
-/* Get the clock selected for the condition variable attribute ATTR. */
-extern int pthread_condattr_getclock (const pthread_condattr_t *
- __restrict __attr,
- __clockid_t *__restrict __clock_id)
- __THROW __nonnull ((1, 2));
-
-/* Set the clock selected for the condition variable attribute ATTR. */
-extern int pthread_condattr_setclock (pthread_condattr_t *__attr,
- __clockid_t __clock_id)
- __THROW __nonnull ((1));
-#endif
-
-
-#ifdef __USE_XOPEN2K
-/* Functions to handle spinlocks. */
-
-/* Initialize the spinlock LOCK. If PSHARED is nonzero the spinlock can
- be shared between different processes. */
-extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared)
- __THROW __nonnull ((1));
-
-/* Destroy the spinlock LOCK. */
-extern int pthread_spin_destroy (pthread_spinlock_t *__lock)
- __THROW __nonnull ((1));
-
-/* Wait until spinlock LOCK is retrieved. */
-extern int pthread_spin_lock (pthread_spinlock_t *__lock)
- __THROWNL __nonnull ((1));
-
-/* Try to lock spinlock LOCK. */
-extern int pthread_spin_trylock (pthread_spinlock_t *__lock)
- __THROWNL __nonnull ((1));
-
-/* Release spinlock LOCK. */
-extern int pthread_spin_unlock (pthread_spinlock_t *__lock)
- __THROWNL __nonnull ((1));
-
-
-/* Functions to handle barriers. */
-
-/* Initialize BARRIER with the attributes in ATTR. The barrier is
- opened when COUNT waiters arrived. */
-extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier,
- const pthread_barrierattr_t *__restrict
- __attr, unsigned int __count)
- __THROW __nonnull ((1));
-
-/* Destroy a previously dynamically initialized barrier BARRIER. */
-extern int pthread_barrier_destroy (pthread_barrier_t *__barrier)
- __THROW __nonnull ((1));
-
-/* Wait on barrier BARRIER. */
-extern int pthread_barrier_wait (pthread_barrier_t *__barrier)
- __THROWNL __nonnull ((1));
-
-
-/* Initialize barrier attribute ATTR. */
-extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Destroy previously dynamically initialized barrier attribute ATTR. */
-extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr)
- __THROW __nonnull ((1));
-
-/* Get the process-shared flag of the barrier attribute ATTR. */
-extern int pthread_barrierattr_getpshared (const pthread_barrierattr_t *
- __restrict __attr,
- int *__restrict __pshared)
- __THROW __nonnull ((1, 2));
-
-/* Set the process-shared flag of the barrier attribute ATTR. */
-extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr,
- int __pshared)
- __THROW __nonnull ((1));
-#endif
-
-
-/* Functions for handling thread-specific data. */
-
-/* Create a key value identifying a location in the thread-specific
- data area. Each thread maintains a distinct thread-specific data
- area. DESTR_FUNCTION, if non-NULL, is called with the value
- associated to that key when the key is destroyed.
- DESTR_FUNCTION is not called if the value associated is NULL when
- the key is destroyed. */
-extern int pthread_key_create (pthread_key_t *__key,
- void (*__destr_function) (void *))
- __THROW __nonnull ((1));
-
-/* Destroy KEY. */
-extern int pthread_key_delete (pthread_key_t __key) __THROW;
-
-/* Return current value of the thread-specific data slot identified by KEY. */
-extern void *pthread_getspecific (pthread_key_t __key) __THROW;
-
-/* Store POINTER in the thread-specific data slot identified by KEY. */
-extern int pthread_setspecific (pthread_key_t __key,
- const void *__pointer) __THROW ;
-
-
-#ifdef __USE_XOPEN2K
-/* Get ID of CPU-time clock for thread THREAD_ID. */
-extern int pthread_getcpuclockid (pthread_t __thread_id,
- __clockid_t *__clock_id)
- __THROW __nonnull ((2));
-#endif
-
-
-/* Install handlers to be called when a new process is created with FORK.
- The PREPARE handler is called in the parent process just before performing
- FORK. The PARENT handler is called in the parent process just after FORK.
- The CHILD handler is called in the child process. Each of the three
- handlers can be NULL, meaning that no handler needs to be called at that
- point.
- PTHREAD_ATFORK can be called several times, in which case the PREPARE
- handlers are called in LIFO order (last added with PTHREAD_ATFORK,
- first called before FORK), and the PARENT and CHILD handlers are called
- in FIFO (first added, first called). */
-
-extern int pthread_atfork (void (*__prepare) (void),
- void (*__parent) (void),
- void (*__child) (void)) __THROW;
-
-
-#ifdef __USE_EXTERN_INLINES
-/* Optimizations. */
-__extern_inline int
-__NTH (pthread_equal (pthread_t __thread1, pthread_t __thread2))
-{
- return __thread1 == __thread2;
-}
-#endif
-
-__END_DECLS
-
-#endif /* pthread.h */
+#include_next <pthread.h>
#ifndef _PTHREAD_H_HPPA_
#define _PTHREAD_H_HPPA_ 1
projects / external / glibc.git / commitdiff