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@@ -1,327 +0,0 @@
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-/* libc-internal interface for mutex locks. LinuxThreads version.
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- Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
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- This file is part of the GNU C Library.
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-
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- The GNU C Library is free software; you can redistribute it and/or
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- modify it under the terms of the GNU Library General Public License as
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- published by the Free Software Foundation; either version 2 of the
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- License, or (at your option) any later version.
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-
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- The GNU C Library is distributed in the hope that it will be useful,
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- but WITHOUT ANY WARRANTY; without even the implied warranty of
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- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- Library General Public License for more details.
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-
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- You should have received a copy of the GNU Library General Public
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- License along with the GNU C Library; see the file COPYING.LIB. If not,
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- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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- Boston, MA 02111-1307, USA. */
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-
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-#ifndef _BITS_LIBC_LOCK_H
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-#define _BITS_LIBC_LOCK_H 1
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-
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-#include <pthread.h>
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-
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-/* Mutex type. */
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-#if defined(_LIBC) || defined(_IO_MTSAFE_IO)
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-typedef pthread_mutex_t __libc_lock_t;
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-typedef struct { pthread_mutex_t mutex; } __libc_lock_recursive_t;
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-# ifdef __USE_UNIX98
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-typedef pthread_rwlock_t __libc_rwlock_t;
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-# else
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-typedef struct __libc_rwlock_opaque__ __libc_rwlock_t;
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-# endif
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-#else
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-typedef struct __libc_lock_opaque__ __libc_lock_t;
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-typedef struct __libc_lock_recursive_opaque__ __libc_lock_recursive_t;
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-typedef struct __libc_rwlock_opaque__ __libc_rwlock_t;
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-#endif
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-
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-/* Type for key to thread-specific data. */
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-typedef pthread_key_t __libc_key_t;
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-
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-/* Define a lock variable NAME with storage class CLASS. The lock must be
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- initialized with __libc_lock_init before it can be used (or define it
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- with __libc_lock_define_initialized, below). Use `extern' for CLASS to
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- declare a lock defined in another module. In public structure
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- definitions you must use a pointer to the lock structure (i.e., NAME
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- begins with a `*'), because its storage size will not be known outside
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- of libc. */
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-#define __libc_lock_define(CLASS,NAME) \
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- CLASS __libc_lock_t NAME;
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-#define __libc_rwlock_define(CLASS,NAME) \
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- CLASS __libc_rwlock_t NAME;
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-#define __libc_lock_define_recursive(CLASS,NAME) \
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- CLASS __libc_lock_recursive_t NAME;
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-
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-/* Define an initialized lock variable NAME with storage class CLASS.
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-
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- For the C library we take a deeper look at the initializer. For
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- this implementation all fields are initialized to zero. Therefore
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- we don't initialize the variable which allows putting it into the
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- BSS section. (Except on PA-RISC and other odd architectures, where
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- initialized locks must be set to one due to the lack of normal
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- atomic operations.) */
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-
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-#ifdef __LOCK_INITIALISER_NOT_ZERO
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-# define __libc_lock_define_initialized(CLASS,NAME) \
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- CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
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-#else
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-# define __libc_lock_define_initialized(CLASS,NAME) \
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- CLASS __libc_lock_t NAME;
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-#endif
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-
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-#define __libc_rwlock_define_initialized(CLASS,NAME) \
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- CLASS __libc_rwlock_t NAME = PTHREAD_RWLOCK_INITIALIZER;
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-
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-/* Define an initialized recursive lock variable NAME with storage
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- class CLASS. */
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-#define __libc_lock_define_initialized_recursive(CLASS,NAME) \
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- CLASS __libc_lock_recursive_t NAME = _LIBC_LOCK_RECURSIVE_INITIALIZER;
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-#define _LIBC_LOCK_RECURSIVE_INITIALIZER \
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- {PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP}
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-
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-/* Initialize the named lock variable, leaving it in a consistent, unlocked
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- state. */
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-#define __libc_lock_init(NAME) \
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- (__pthread_mutex_init != NULL ? __pthread_mutex_init (&(NAME), NULL) : 0);
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-#define __libc_rwlock_init(NAME) \
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- (__pthread_rwlock_init != NULL ? __pthread_rwlock_init (&(NAME), NULL) : 0);
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-
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-/* Same as last but this time we initialize a recursive mutex. */
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-#define __libc_lock_init_recursive(NAME) \
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- do { \
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- if (__pthread_mutex_init != NULL) \
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- { \
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- pthread_mutexattr_t __attr; \
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- __pthread_mutexattr_init (&__attr); \
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- __pthread_mutexattr_settype (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \
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- __pthread_mutex_init (&(NAME).mutex, &__attr); \
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- __pthread_mutexattr_destroy (&__attr); \
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- } \
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- } while (0);
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-
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-/* Finalize the named lock variable, which must be locked. It cannot be
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- used again until __libc_lock_init is called again on it. This must be
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- called on a lock variable before the containing storage is reused. */
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-#define __libc_lock_fini(NAME) \
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- (__pthread_mutex_destroy != NULL ? __pthread_mutex_destroy (&(NAME)) : 0);
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-#define __libc_rwlock_fini(NAME) \
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- (__pthread_rwlock_destroy != NULL ? __pthread_rwlock_destroy (&(NAME)) : 0);
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-
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-/* Finalize recursive named lock. */
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-#define __libc_lock_fini_recursive(NAME) __libc_lock_fini ((NAME).mutex)
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-
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-/* Lock the named lock variable. */
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-#define __libc_lock_lock(NAME) \
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- (__pthread_mutex_lock != NULL ? __pthread_mutex_lock (&(NAME)) : 0);
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-#define __libc_rwlock_rdlock(NAME) \
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- (__pthread_rwlock_rdlock != NULL ? __pthread_rwlock_rdlock (&(NAME)) : 0);
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-#define __libc_rwlock_wrlock(NAME) \
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- (__pthread_rwlock_wrlock != NULL ? __pthread_rwlock_wrlock (&(NAME)) : 0);
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-
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-/* Lock the recursive named lock variable. */
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-#define __libc_lock_lock_recursive(NAME) __libc_lock_lock ((NAME).mutex)
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-
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-/* Try to lock the named lock variable. */
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-#define __libc_lock_trylock(NAME) \
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- (__pthread_mutex_trylock != NULL ? __pthread_mutex_trylock (&(NAME)) : 0)
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-#define __libc_rwlock_tryrdlock(NAME) \
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- (__pthread_rwlock_tryrdlock != NULL \
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- ? __pthread_rwlock_tryrdlock (&(NAME)) : 0)
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-#define __libc_rwlock_trywrlock(NAME) \
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- (__pthread_rwlock_trywrlock != NULL \
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- ? __pthread_rwlock_trywrlock (&(NAME)) : 0)
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-
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-/* Try to lock the recursive named lock variable. */
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-#define __libc_lock_trylock_recursive(NAME) __libc_lock_trylock ((NAME).mutex)
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-
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-/* Unlock the named lock variable. */
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-#define __libc_lock_unlock(NAME) \
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- (__pthread_mutex_unlock != NULL ? __pthread_mutex_unlock (&(NAME)) : 0);
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-#define __libc_rwlock_unlock(NAME) \
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- (__pthread_rwlock_unlock != NULL ? __pthread_rwlock_unlock (&(NAME)) : 0);
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-
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-/* Unlock the recursive named lock variable. */
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-#define __libc_lock_unlock_recursive(NAME) __libc_lock_unlock ((NAME).mutex)
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-
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-
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-/* Define once control variable. */
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-#if PTHREAD_ONCE_INIT == 0
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-/* Special case for static variables where we can avoid the initialization
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- if it is zero. */
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-# define __libc_once_define(CLASS, NAME) \
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- CLASS pthread_once_t NAME
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-#else
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-# define __libc_once_define(CLASS, NAME) \
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- CLASS pthread_once_t NAME = PTHREAD_ONCE_INIT
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-#endif
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-
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-/* Call handler iff the first call. */
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-#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \
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- do { \
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- if (__pthread_once != NULL) \
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- __pthread_once (&(ONCE_CONTROL), (INIT_FUNCTION)); \
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- else if ((ONCE_CONTROL) == PTHREAD_ONCE_INIT) { \
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- INIT_FUNCTION (); \
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- (ONCE_CONTROL) = !PTHREAD_ONCE_INIT; \
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- } \
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- } while (0)
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-
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-
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-/* Start critical region with cleanup. */
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-#define __libc_cleanup_region_start(DOIT, FCT, ARG) \
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- { struct _pthread_cleanup_buffer _buffer; \
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- int _avail = (DOIT) && _pthread_cleanup_push_defer != NULL; \
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- if (_avail) { \
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- _pthread_cleanup_push_defer (&_buffer, (FCT), (ARG)); \
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- }
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-
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-/* End critical region with cleanup. */
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-#define __libc_cleanup_region_end(DOIT) \
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- if (_avail) { \
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- _pthread_cleanup_pop_restore (&_buffer, (DOIT)); \
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- } \
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- }
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-
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-/* Sometimes we have to exit the block in the middle. */
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-#define __libc_cleanup_end(DOIT) \
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- if (_avail) { \
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- _pthread_cleanup_pop_restore (&_buffer, (DOIT)); \
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- }
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-
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-/* Create thread-specific key. */
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-#define __libc_key_create(KEY, DESTRUCTOR) \
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- (__pthread_key_create != NULL ? __pthread_key_create (KEY, DESTRUCTOR) : 1)
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-
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-/* Get thread-specific data. */
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-#define __libc_getspecific(KEY) \
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- (__pthread_getspecific != NULL ? __pthread_getspecific (KEY) : NULL)
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-
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-/* Set thread-specific data. */
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-#define __libc_setspecific(KEY, VALUE) \
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- (__pthread_setspecific != NULL ? __pthread_setspecific (KEY, VALUE) : 0)
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-
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-
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-/* Register handlers to execute before and after `fork'. */
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-#define __libc_atfork(PREPARE, PARENT, CHILD) \
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- (__pthread_atfork != NULL ? __pthread_atfork (PREPARE, PARENT, CHILD) : 0)
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-
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-/* Functions that are used by this file and are internal to the GNU C
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- library. */
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-
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-extern int __pthread_mutex_init (pthread_mutex_t *__mutex,
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- __const pthread_mutexattr_t *__mutex_attr);
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-
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-extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex);
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-
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-extern int __pthread_mutex_trylock (pthread_mutex_t *__mutex);
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-
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-extern int __pthread_mutex_lock (pthread_mutex_t *__mutex);
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-
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-extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex);
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-
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-extern int __pthread_mutexattr_init (pthread_mutexattr_t *__attr);
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-
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-extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *__attr);
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-
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-extern int __pthread_mutexattr_settype (pthread_mutexattr_t *__attr,
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- int __kind);
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-
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-#ifdef __USE_UNIX98
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-extern int __pthread_rwlock_init (pthread_rwlock_t *__rwlock,
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- __const pthread_rwlockattr_t *__attr);
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-
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-extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock);
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-
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-extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock);
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-
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-extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock);
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-
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-extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock);
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-
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-extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock);
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-
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-extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock);
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-#endif
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-
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-extern int __pthread_key_create (pthread_key_t *__key,
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- void (*__destr_function) (void *));
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-
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-extern int __pthread_setspecific (pthread_key_t __key,
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- __const void *__pointer);
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-
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-extern void *__pthread_getspecific (pthread_key_t __key);
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-
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-extern int __pthread_once (pthread_once_t *__once_control,
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- void (*__init_routine) (void));
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-
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-extern int __pthread_atfork (void (*__prepare) (void),
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- void (*__parent) (void),
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- void (*__child) (void));
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-
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-
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-
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-/* Make the pthread functions weak so that we can elide them from
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- single-threaded processes. */
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-#ifndef __NO_WEAK_PTHREAD_ALIASES
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-# ifdef weak_extern
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-# if _LIBC
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-# include <bp-sym.h>
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-# else
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-# define BP_SYM (sym) sym
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-# endif
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-weak_extern (BP_SYM (__pthread_mutex_init))
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-weak_extern (BP_SYM (__pthread_mutex_destroy))
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-weak_extern (BP_SYM (__pthread_mutex_lock))
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-weak_extern (BP_SYM (__pthread_mutex_trylock))
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-weak_extern (BP_SYM (__pthread_mutex_unlock))
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-weak_extern (BP_SYM (__pthread_mutexattr_init))
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-weak_extern (BP_SYM (__pthread_mutexattr_destroy))
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-weak_extern (BP_SYM (__pthread_mutexattr_settype))
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-weak_extern (BP_SYM (__pthread_rwlock_init))
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-weak_extern (BP_SYM (__pthread_rwlock_destroy))
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-weak_extern (BP_SYM (__pthread_rwlock_rdlock))
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-weak_extern (BP_SYM (__pthread_rwlock_tryrdlock))
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-weak_extern (BP_SYM (__pthread_rwlock_wrlock))
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-weak_extern (BP_SYM (__pthread_rwlock_trywrlock))
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-weak_extern (BP_SYM (__pthread_rwlock_unlock))
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-weak_extern (BP_SYM (__pthread_key_create))
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-weak_extern (BP_SYM (__pthread_setspecific))
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-weak_extern (BP_SYM (__pthread_getspecific))
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-weak_extern (BP_SYM (__pthread_once))
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-weak_extern (__pthread_initialize)
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-weak_extern (__pthread_atfork)
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-weak_extern (BP_SYM (_pthread_cleanup_push_defer))
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-weak_extern (BP_SYM (_pthread_cleanup_pop_restore))
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-# else
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-# pragma weak __pthread_mutex_init
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-# pragma weak __pthread_mutex_destroy
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-# pragma weak __pthread_mutex_lock
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-# pragma weak __pthread_mutex_trylock
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-# pragma weak __pthread_mutex_unlock
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-# pragma weak __pthread_mutexattr_init
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-# pragma weak __pthread_mutexattr_destroy
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-# pragma weak __pthread_mutexattr_settype
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-# pragma weak __pthread_rwlock_destroy
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-# pragma weak __pthread_rwlock_rdlock
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-# pragma weak __pthread_rwlock_tryrdlock
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-# pragma weak __pthread_rwlock_wrlock
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-# pragma weak __pthread_rwlock_trywrlock
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-# pragma weak __pthread_rwlock_unlock
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-# pragma weak __pthread_key_create
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-# pragma weak __pthread_setspecific
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-# pragma weak __pthread_getspecific
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-# pragma weak __pthread_once
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-# pragma weak __pthread_initialize
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-# pragma weak __pthread_atfork
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-# pragma weak _pthread_cleanup_push_defer
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-# pragma weak _pthread_cleanup_pop_restore
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-# endif
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-#endif
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-
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-/* We need portable names for some functions. E.g., when they are
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- used as argument to __libc_cleanup_region_start. */
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-#define __libc_mutex_unlock __pthread_mutex_unlock
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-
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-#endif /* bits/libc-lock.h */
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