diff options
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/pthread/bits/libc-lock.h')
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/pthread/bits/libc-lock.h | 63 |
1 files changed, 35 insertions, 28 deletions
diff --git a/libpthread/linuxthreads/sysdeps/pthread/bits/libc-lock.h b/libpthread/linuxthreads/sysdeps/pthread/bits/libc-lock.h index 855efff12..a7c0249cf 100644 --- a/libpthread/linuxthreads/sysdeps/pthread/bits/libc-lock.h +++ b/libpthread/linuxthreads/sysdeps/pthread/bits/libc-lock.h @@ -1,5 +1,5 @@ /* libc-internal interface for mutex locks. LinuxThreads version. - Copyright (C) 1996,1997,1998,1999,2000,2001,2002,2003,2006 + Copyright (C) 1996,1997,1998,1999,2000,2001,2002,2003 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -29,7 +29,7 @@ /* Mutex type. */ #if defined(_LIBC) || defined(_IO_MTSAFE_IO) typedef pthread_mutex_t __libc_lock_t; -typedef struct { pthread_mutex_t mutex; } __libc_lock_recursive_t; +typedef pthread_mutex_t __libc_lock_recursive_t; # ifdef __USE_UNIX98 typedef pthread_rwlock_t __libc_rwlock_t; # else @@ -131,15 +131,39 @@ typedef pthread_key_t __libc_key_t; #define __libc_rwlock_init(NAME) \ (__libc_maybe_call (__pthread_rwlock_init, (&(NAME), NULL), 0)); +/* Same as last but this time we initialize an adaptive mutex. */ +#if defined _LIBC && !defined NOT_IN_libc && defined SHARED +#define __libc_lock_init_adaptive(NAME) \ + ({ \ + (NAME).__m_count = 0; \ + (NAME).__m_owner = NULL; \ + (NAME).__m_kind = PTHREAD_MUTEX_ADAPTIVE_NP; \ + (NAME).__m_lock.__status = 0; \ + (NAME).__m_lock.__spinlock = __LT_SPINLOCK_INIT; \ + 0; }) +#else +#define __libc_lock_init_adaptive(NAME) \ + do { \ + if (__pthread_mutex_init != NULL) \ + { \ + pthread_mutexattr_t __attr; \ + __pthread_mutexattr_init (&__attr); \ + __pthread_mutexattr_settype (&__attr, PTHREAD_MUTEX_ADAPTIVE_NP); \ + __pthread_mutex_init (&(NAME), &__attr); \ + __pthread_mutexattr_destroy (&__attr); \ + } \ + } while (0); +#endif + /* Same as last but this time we initialize a recursive mutex. */ #if defined _LIBC && !defined NOT_IN_libc && defined SHARED #define __libc_lock_init_recursive(NAME) \ ({ \ - (NAME).mutex.__m_count = 0; \ - (NAME).mutex.__m_owner = NULL; \ - (NAME).mutex.__m_kind = PTHREAD_MUTEX_RECURSIVE_NP; \ - (NAME).mutex.__m_lock.__status = 0; \ - (NAME).mutex.__m_lock.__spinlock = __LT_SPINLOCK_INIT; \ + (NAME).__m_count = 0; \ + (NAME).__m_owner = NULL; \ + (NAME).__m_kind = PTHREAD_MUTEX_RECURSIVE_NP; \ + (NAME).__m_lock.__status = 0; \ + (NAME).__m_lock.__spinlock = __LT_SPINLOCK_INIT; \ 0; }) #else #define __libc_lock_init_recursive(NAME) \ @@ -149,7 +173,7 @@ typedef pthread_key_t __libc_key_t; pthread_mutexattr_t __attr; \ __pthread_mutexattr_init (&__attr); \ __pthread_mutexattr_settype (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \ - __pthread_mutex_init (&(NAME).mutex, &__attr); \ + __pthread_mutex_init (&(NAME), &__attr); \ __pthread_mutexattr_destroy (&__attr); \ } \ } while (0); @@ -202,23 +226,6 @@ typedef pthread_key_t __libc_key_t; /* Unlock the recursive named lock variable. */ #define __libc_lock_unlock_recursive(NAME) __libc_lock_unlock ((NAME).mutex) -#if defined _LIBC && defined SHARED -# define __rtld_lock_default_lock_recursive(lock) \ - ++((pthread_mutex_t *)(lock))->__m_count; - -# define __rtld_lock_default_unlock_recursive(lock) \ - --((pthread_mutex_t *)(lock))->__m_count; - -# define __rtld_lock_lock_recursive(NAME) \ - GL(dl_rtld_lock_recursive) (&(NAME).mutex) - -# define __rtld_lock_unlock_recursive(NAME) \ - GL(dl_rtld_unlock_recursive) (&(NAME).mutex) -#else -#define __rtld_lock_lock_recursive(NAME) __libc_lock_lock_recursive (NAME) -#define __rtld_lock_unlock_recursive(NAME) __libc_lock_unlock_recursive (NAME) -#endif - /* Define once control variable. */ #if PTHREAD_ONCE_INIT == 0 /* Special case for static variables where we can avoid the initialization @@ -237,7 +244,7 @@ typedef pthread_key_t __libc_key_t; __pthread_once (&(ONCE_CONTROL), (INIT_FUNCTION)); \ else if ((ONCE_CONTROL) == PTHREAD_ONCE_INIT) { \ INIT_FUNCTION (); \ - (ONCE_CONTROL) = 2; \ + (ONCE_CONTROL) = !PTHREAD_ONCE_INIT; \ } \ } while (0) @@ -263,6 +270,7 @@ typedef pthread_key_t __libc_key_t; _pthread_cleanup_pop_restore (&_buffer, (DOIT)); \ } +#if 0 #define __libc_cleanup_push(fct, arg) \ { struct _pthread_cleanup_buffer _buffer; \ __libc_maybe_call (_pthread_cleanup_push, (&_buffer, (fct), (arg)), 0) @@ -270,6 +278,7 @@ typedef pthread_key_t __libc_key_t; #define __libc_cleanup_pop(execute) \ __libc_maybe_call (_pthread_cleanup_pop, (&_buffer, execute), 0); \ } +#endif /* Create thread-specific key. */ #define __libc_key_create(KEY, DESTRUCTOR) \ @@ -367,7 +376,6 @@ weak_extern (BP_SYM (__pthread_key_create)) weak_extern (BP_SYM (__pthread_setspecific)) weak_extern (BP_SYM (__pthread_getspecific)) weak_extern (BP_SYM (__pthread_once)) -weak_extern (__pthread_initialize) weak_extern (__pthread_atfork) weak_extern (BP_SYM (_pthread_cleanup_push)) weak_extern (BP_SYM (_pthread_cleanup_pop)) @@ -392,7 +400,6 @@ weak_extern (BP_SYM (_pthread_cleanup_pop_restore)) # pragma weak __pthread_setspecific # pragma weak __pthread_getspecific # pragma weak __pthread_once -# pragma weak __pthread_initialize # pragma weak __pthread_atfork # pragma weak _pthread_cleanup_push_defer # pragma weak _pthread_cleanup_pop_restore |