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authorPedro F. Giffuni <pfg@FreeBSD.org>2017-01-01 17:16:47 +0000
committerPedro F. Giffuni <pfg@FreeBSD.org>2017-01-01 17:16:47 +0000
commitf1b298ad46305d58fa4bd8a02db4ec12d3e3726e (patch)
treefcb4c03eb4e320e2d67e143f717eee4d3f76f09e /include/pthread.h
parentd2aa1af62902b45be2cab4165f694ead9f90c84a (diff)
downloadsrc-f1b298ad46305d58fa4bd8a02db4ec12d3e3726e.tar.gz
src-f1b298ad46305d58fa4bd8a02db4ec12d3e3726e.zip
Remove some uses of the GCC __nonnull() attribute.
While the checks are considered useful, the attribute does dangerous optimizations, removing NULL checks where they can be needed. Remove the uses of this attribute introduced in r281130: the changes were inspired on Google's bionic where this attribute is not used anymore. The __nonnull() attribute will be deprecrated from our headers and replaced with the Clang _Nonnull qualifier in the future. MFC after: 3 days
Notes
Notes: svn path=/head/; revision=311012
Diffstat (limited to 'include/pthread.h')
-rw-r--r--include/pthread.h147
1 files changed, 64 insertions, 83 deletions
diff --git a/include/pthread.h b/include/pthread.h
index 40dca7a4907a..ff74e0b4e8f6 100644
--- a/include/pthread.h
+++ b/include/pthread.h
@@ -147,25 +147,19 @@ struct _pthread_cleanup_info {
*/
__BEGIN_DECLS
int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
-int pthread_attr_destroy(pthread_attr_t *) __nonnull(1);
+int pthread_attr_destroy(pthread_attr_t *);
int pthread_attr_getstack(const pthread_attr_t * __restrict,
- void ** __restrict, size_t * __restrict)
- __nonnull_all;
-int pthread_attr_getstacksize(const pthread_attr_t *, size_t *)
- __nonnull_all;
+ void ** __restrict, size_t * __restrict);
+int pthread_attr_getstacksize(const pthread_attr_t *, size_t *);
int pthread_attr_getguardsize(const pthread_attr_t *, size_t *);
int pthread_attr_getstackaddr(const pthread_attr_t *, void **);
-int pthread_attr_getdetachstate(const pthread_attr_t *, int *)
- __nonnull_all;
-int pthread_attr_init(pthread_attr_t *) __nonnull(1);
-int pthread_attr_setstacksize(pthread_attr_t *, size_t)
- __nonnull(1);
-int pthread_attr_setguardsize(pthread_attr_t *, size_t)
- __nonnull(1);
-int pthread_attr_setstack(pthread_attr_t *, void *, size_t)
- __nonnull(1);
+int pthread_attr_getdetachstate(const pthread_attr_t *, int *);
+int pthread_attr_init(pthread_attr_t *);
+int pthread_attr_setstacksize(pthread_attr_t *, size_t);
+int pthread_attr_setguardsize(pthread_attr_t *, size_t);
+int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
int pthread_attr_setstackaddr(pthread_attr_t *, void *);
-int pthread_attr_setdetachstate(pthread_attr_t *, int) __nonnull(1);
+int pthread_attr_setdetachstate(pthread_attr_t *, int);
int pthread_barrier_destroy(pthread_barrier_t *);
int pthread_barrier_init(pthread_barrier_t *,
const pthread_barrierattr_t *, unsigned);
@@ -173,7 +167,7 @@ int pthread_barrier_wait(pthread_barrier_t *);
int pthread_barrierattr_destroy(pthread_barrierattr_t *);
int pthread_barrierattr_getpshared(const pthread_barrierattr_t *,
int *);
-int pthread_barrierattr_init(pthread_barrierattr_t *) __nonnull(1);
+int pthread_barrierattr_init(pthread_barrierattr_t *);
int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
#define pthread_cleanup_push(cleanup_routine, cleanup_arg) \
@@ -189,111 +183,100 @@ int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
__pthread_cleanup_pop_imp(execute); \
}
-int pthread_condattr_destroy(pthread_condattr_t *) __nonnull(1);
+int pthread_condattr_destroy(pthread_condattr_t *);
int pthread_condattr_getclock(const pthread_condattr_t *,
- clockid_t *) __nonnull_all;
-int pthread_condattr_getpshared(const pthread_condattr_t *, int *)
- __nonnull_all;
-int pthread_condattr_init(pthread_condattr_t *) __nonnull(1);
-int pthread_condattr_setclock(pthread_condattr_t *, clockid_t)
- __nonnull(1);
-int pthread_condattr_setpshared(pthread_condattr_t *, int)
- __nonnull(1);
-int pthread_cond_broadcast(pthread_cond_t *)
- __nonnull(1);
-int pthread_cond_destroy(pthread_cond_t *)
- __nonnull(1);
+ clockid_t *);
+int pthread_condattr_getpshared(const pthread_condattr_t *, int *);
+int pthread_condattr_init(pthread_condattr_t *);
+int pthread_condattr_setclock(pthread_condattr_t *, clockid_t);
+int pthread_condattr_setpshared(pthread_condattr_t *, int);
+int pthread_cond_broadcast(pthread_cond_t *);
+int pthread_cond_destroy(pthread_cond_t *);
int pthread_cond_init(pthread_cond_t *,
- const pthread_condattr_t *) __nonnull(1);
-int pthread_cond_signal(pthread_cond_t *) __nonnull(1);
+ const pthread_condattr_t *);
+int pthread_cond_signal(pthread_cond_t *);
int pthread_cond_timedwait(pthread_cond_t *,
pthread_mutex_t *__mutex, const struct timespec *)
- __nonnull_all __requires_exclusive(*__mutex);
+ __requires_exclusive(*__mutex);
int pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *__mutex)
- __nonnull_all __requires_exclusive(*__mutex);
+ __requires_exclusive(*__mutex);
int pthread_create(pthread_t *, const pthread_attr_t *,
- void *(*) (void *), void *) __nonnull(1) __nonnull(3);
+ void *(*) (void *), void *);
int pthread_detach(pthread_t);
int pthread_equal(pthread_t, pthread_t);
void pthread_exit(void *) __dead2;
void *pthread_getspecific(pthread_key_t);
-int pthread_getcpuclockid(pthread_t, clockid_t *) __nonnull(2);
+int pthread_getcpuclockid(pthread_t, clockid_t *);
int pthread_join(pthread_t, void **);
int pthread_key_create(pthread_key_t *,
- void (*) (void *)) __nonnull(1);
+ void (*) (void *));
int pthread_key_delete(pthread_key_t);
-int pthread_mutexattr_init(pthread_mutexattr_t *) __nonnull(1);
-int pthread_mutexattr_destroy(pthread_mutexattr_t *) __nonnull(1);
+int pthread_mutexattr_init(pthread_mutexattr_t *);
+int pthread_mutexattr_destroy(pthread_mutexattr_t *);
int pthread_mutexattr_getpshared(const pthread_mutexattr_t *,
- int *) __nonnull_all;
-int pthread_mutexattr_gettype(pthread_mutexattr_t *, int *)
- __nonnull_all;
-int pthread_mutexattr_settype(pthread_mutexattr_t *, int)
- __nonnull(1);
-int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int)
- __nonnull(1);
+ int *);
+int pthread_mutexattr_gettype(pthread_mutexattr_t *, int *);
+int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
+int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);
int pthread_mutex_consistent(pthread_mutex_t *__mutex)
__nonnull(1) __requires_exclusive(*__mutex);
int pthread_mutex_destroy(pthread_mutex_t *__mutex)
- __nonnull(1) __requires_unlocked(*__mutex);
+ __requires_unlocked(*__mutex);
int pthread_mutex_init(pthread_mutex_t *__mutex,
const pthread_mutexattr_t *)
- __nonnull(1) __requires_unlocked(*__mutex);
+ __requires_unlocked(*__mutex);
int pthread_mutex_lock(pthread_mutex_t *__mutex)
- __nonnull(1) __locks_exclusive(*__mutex);
+ __locks_exclusive(*__mutex);
int pthread_mutex_trylock(pthread_mutex_t *__mutex)
- __nonnull(1) __trylocks_exclusive(0, *__mutex);
+ __trylocks_exclusive(0, *__mutex);
int pthread_mutex_timedlock(pthread_mutex_t *__mutex,
const struct timespec *)
- __nonnull_all __trylocks_exclusive(0, *__mutex);
+ __trylocks_exclusive(0, *__mutex);
int pthread_mutex_unlock(pthread_mutex_t *__mutex)
- __nonnull(1) __unlocks(*__mutex);
-int pthread_once(pthread_once_t *, void (*) (void)) __nonnull_all;
+ __unlocks(*__mutex);
+int pthread_once(pthread_once_t *, void (*) (void));
int pthread_rwlock_destroy(pthread_rwlock_t *__rwlock)
- __nonnull(1) __requires_unlocked(*__rwlock);
+ __requires_unlocked(*__rwlock);
int pthread_rwlock_init(pthread_rwlock_t *__rwlock,
const pthread_rwlockattr_t *)
- __nonnull(1) __requires_unlocked(*__rwlock);
+ __requires_unlocked(*__rwlock);
int pthread_rwlock_rdlock(pthread_rwlock_t *__rwlock)
- __nonnull(1) __locks_shared(*__rwlock);
+ __locks_shared(*__rwlock);
int pthread_rwlock_timedrdlock(pthread_rwlock_t *__rwlock,
const struct timespec *)
- __nonnull_all __trylocks_shared(0, *__rwlock);
+ __trylocks_shared(0, *__rwlock);
int pthread_rwlock_timedwrlock(pthread_rwlock_t *__rwlock,
const struct timespec *)
- __nonnull_all __trylocks_exclusive(0, *__rwlock);
+ __trylocks_exclusive(0, *__rwlock);
int pthread_rwlock_tryrdlock(pthread_rwlock_t *__rwlock)
- __nonnull(1) __trylocks_shared(0, *__rwlock);
+ __trylocks_shared(0, *__rwlock);
int pthread_rwlock_trywrlock(pthread_rwlock_t *__rwlock)
- __nonnull(1) __trylocks_exclusive(0, *__rwlock);
+ __trylocks_exclusive(0, *__rwlock);
int pthread_rwlock_unlock(pthread_rwlock_t *__rwlock)
- __nonnull(1) __unlocks(*__rwlock);
+ __unlocks(*__rwlock);
int pthread_rwlock_wrlock(pthread_rwlock_t *__rwlock)
- __nonnull(1) __locks_exclusive(*__rwlock);
-int pthread_rwlockattr_destroy(pthread_rwlockattr_t *)
- __nonnull(1);
+ __locks_exclusive(*__rwlock);
+int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
int pthread_rwlockattr_getkind_np(const pthread_rwlockattr_t *,
int *);
int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *,
- int *) __nonnull_all;
-int pthread_rwlockattr_init(pthread_rwlockattr_t *)
- __nonnull(1);
+ int *);
+int pthread_rwlockattr_init(pthread_rwlockattr_t *);
int pthread_rwlockattr_setkind_np(pthread_rwlockattr_t *, int);
-int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int)
- __nonnull(1);
+int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
pthread_t pthread_self(void);
int pthread_setspecific(pthread_key_t, const void *);
int pthread_spin_init(pthread_spinlock_t *__spin, int)
- __requires_unlocked(*__spin);
+ __requires_unlocked(*__spin);
int pthread_spin_destroy(pthread_spinlock_t *__spin)
- __requires_unlocked(*__spin);
+ __requires_unlocked(*__spin);
int pthread_spin_lock(pthread_spinlock_t *__spin)
- __locks_exclusive(*__spin);
+ __locks_exclusive(*__spin);
int pthread_spin_trylock(pthread_spinlock_t *__spin)
- __trylocks_exclusive(0, *__spin);
+ __trylocks_exclusive(0, *__spin);
int pthread_spin_unlock(pthread_spinlock_t *__spin)
- __unlocks(*__spin);
+ __unlocks(*__spin);
int pthread_cancel(pthread_t);
int pthread_setcancelstate(int, int *);
int pthread_setcanceltype(int, int *);
@@ -322,20 +305,18 @@ int pthread_mutexattr_setrobust(pthread_mutexattr_t *, int)
int pthread_attr_getinheritsched(const pthread_attr_t *, int *);
int pthread_attr_getschedparam(const pthread_attr_t *,
- struct sched_param *) __nonnull_all;
-int pthread_attr_getschedpolicy(const pthread_attr_t *, int *)
- __nonnull_all;
-int pthread_attr_getscope(const pthread_attr_t *, int *)
- __nonnull_all;
+ struct sched_param *);
+int pthread_attr_getschedpolicy(const pthread_attr_t *, int *);
+int pthread_attr_getscope(const pthread_attr_t *, int *);
int pthread_attr_setinheritsched(pthread_attr_t *, int);
int pthread_attr_setschedparam(pthread_attr_t *,
- const struct sched_param *) __nonnull(1) __nonnull(2);
-int pthread_attr_setschedpolicy(pthread_attr_t *, int) __nonnull(1);
-int pthread_attr_setscope(pthread_attr_t *, int) __nonnull(1);
+ const struct sched_param *);
+int pthread_attr_setschedpolicy(pthread_attr_t *, int);
+int pthread_attr_setscope(pthread_attr_t *, int);
int pthread_getschedparam(pthread_t pthread, int *,
- struct sched_param *) __nonnull(2) __nonnull(3);
+ struct sched_param *);
int pthread_setschedparam(pthread_t, int,
- const struct sched_param *) __nonnull(3);
+ const struct sched_param *);
#if __XSI_VISIBLE
int pthread_getconcurrency(void);
int pthread_setconcurrency(int);