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-rw-r--r--linuxthreads/sysdeps/pthread/bits/libc-lock.h52
1 files changed, 51 insertions, 1 deletions
diff --git a/linuxthreads/sysdeps/pthread/bits/libc-lock.h b/linuxthreads/sysdeps/pthread/bits/libc-lock.h
index 0f412bb9e2..76a56d5058 100644
--- a/linuxthreads/sysdeps/pthread/bits/libc-lock.h
+++ b/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 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -25,8 +25,10 @@
/* Mutex type. */
#ifdef _LIBC
typedef pthread_mutex_t __libc_lock_t;
+typedef pthread_rwlock_t __libc_rwlock_t;
#else
typedef struct __libc_lock_opaque__ __libc_lock_t;
+typedef struct __libc_rwlock_opaque__ __libc_rwlock_t;
#endif
/* Type for key to thread-specific data. */
@@ -41,6 +43,8 @@ typedef pthread_key_t __libc_key_t;
of libc. */
#define __libc_lock_define(CLASS,NAME) \
CLASS __libc_lock_t NAME;
+#define __libc_rwlock_define(CLASS,NAME) \
+ CLASS __libc_rwlock_t NAME;
/* Define an initialized lock variable NAME with storage class CLASS.
@@ -50,6 +54,8 @@ typedef pthread_key_t __libc_key_t;
section. */
#define __libc_lock_define_initialized(CLASS,NAME) \
CLASS __libc_lock_t NAME;
+#define __libc_rwlock_define_initialized(CLASS,NAME) \
+ CLASS __libc_rwlock_t NAME = PTHREAD_RWLOCK_INITIALIZER;
/* Define an initialized recursive lock variable NAME with storage
class CLASS. */
@@ -60,6 +66,8 @@ typedef pthread_key_t __libc_key_t;
state. */
#define __libc_lock_init(NAME) \
(__pthread_mutex_init != NULL ? __pthread_mutex_init (&(NAME), NULL) : 0);
+#define __libc_rwlock_init(NAME) \
+ (__pthread_rwlock_init != NULL ? __pthread_rwlock_init (&(NAME), NULL) : 0);
/* Same as last but this time we initialize a recursive mutex. */
#define __libc_lock_init_recursive(NAME) \
@@ -79,6 +87,8 @@ typedef pthread_key_t __libc_key_t;
called on a lock variable before the containing storage is reused. */
#define __libc_lock_fini(NAME) \
(__pthread_mutex_destroy != NULL ? __pthread_mutex_destroy (&(NAME)) : 0);
+#define __libc_rwlock_fini(NAME) \
+ (__pthread_rwlock_destroy != NULL ? __pthread_rwlock_destroy (&(NAME)) : 0);
/* Finalize recursive named lock. */
#define __libc_lock_fini_recursive(NAME) __libc_lock_fini (NAME)
@@ -86,6 +96,10 @@ typedef pthread_key_t __libc_key_t;
/* Lock the named lock variable. */
#define __libc_lock_lock(NAME) \
(__pthread_mutex_lock != NULL ? __pthread_mutex_lock (&(NAME)) : 0);
+#define __libc_rwlock_rdlock(NAME) \
+ (__pthread_rwlock_rdlock != NULL ? __pthread_rwlock_rdlock (&(NAME)) : 0);
+#define __libc_rwlock_wrlock(NAME) \
+ (__pthread_rwlock_wrlock != NULL ? __pthread_rwlock_wrlock (&(NAME)) : 0);
/* Lock the recursive named lock variable. */
#define __libc_lock_lock_recursive(NAME) __libc_lock_lock (NAME)
@@ -93,6 +107,12 @@ typedef pthread_key_t __libc_key_t;
/* Try to lock the named lock variable. */
#define __libc_lock_trylock(NAME) \
(__pthread_mutex_trylock != NULL ? __pthread_mutex_trylock (&(NAME)) : 0)
+#define __libc_rwlock_tryrdlock(NAME) \
+ (__pthread_rwlock_tryrdlock != NULL \
+ ? __pthread_rwlock_tryrdlock (&(NAME)) : 0)
+#define __libc_rwlock_trywrlock(NAME) \
+ (__pthread_rwlock_trywrlock != NULL \
+ ? __pthread_rwlock_trywrlock (&(NAME)) : 0)
/* Try to lock the recursive named lock variable. */
#define __libc_lock_trylock_recursive(NAME) __libc_lock_trylock (NAME)
@@ -100,6 +120,8 @@ typedef pthread_key_t __libc_key_t;
/* Unlock the named lock variable. */
#define __libc_lock_unlock(NAME) \
(__pthread_mutex_unlock != NULL ? __pthread_mutex_unlock (&(NAME)) : 0);
+#define __libc_rwlock_unlock(NAME) \
+ (__pthread_rwlock_unlock != NULL ? __pthread_rwlock_unlock (&(NAME)) : 0);
/* Unlock the recursive named lock variable. */
#define __libc_lock_unlock_recursive(NAME) __libc_lock_unlock (NAME)
@@ -187,6 +209,21 @@ extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *__attr);
extern int __pthread_mutexattr_settype (pthread_mutexattr_t *__attr,
int __kind);
+extern int __pthread_rwlock_init (pthread_rwlock_t *__rwlock,
+ __const pthread_rwlockattr_t *__attr);
+
+extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock);
+
+extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock);
+
extern int __pthread_key_create (pthread_key_t *__key,
void (*__destr_function) (void *));
@@ -216,6 +253,13 @@ weak_extern (__pthread_mutex_unlock)
weak_extern (__pthread_mutexattr_init)
weak_extern (__pthread_mutexattr_destroy)
weak_extern (__pthread_mutexattr_settype)
+weak_extern (__pthread_rwlock_init)
+weak_extern (__pthread_rwlock_destroy)
+weak_extern (__pthread_rwlock_rdlock)
+weak_extern (__pthread_rwlock_tryrdlock)
+weak_extern (__pthread_rwlock_wrlock)
+weak_extern (__pthread_rwlock_trywrlock)
+weak_extern (__pthread_rwlock_unlock)
weak_extern (__pthread_key_create)
weak_extern (__pthread_setspecific)
weak_extern (__pthread_getspecific)
@@ -233,6 +277,12 @@ weak_extern (_pthread_cleanup_pop_restore)
# pragma weak __pthread_mutexattr_init
# pragma weak __pthread_mutexattr_destroy
# pragma weak __pthread_mutexattr_settype
+# pragna weak __pthread_rwlock_destroy
+# pragma weak __pthread_rwlock_rdlock
+# pragma weak __pthread_rwlock_tryrdlock
+# pragma weak __pthread_rwlock_wrlock
+# pragma weak __pthread_rwlock_trywrlock
+# pragma weak __pthread_rwlock_unlock
# pragma weak __pthread_key_create
# pragma weak __pthread_setspecific
# pragma weak __pthread_getspecific