pipe_thread_* is replaced by u_thread_*. Signed-off-by: Chia-I Wu <olvaffe@gmail.com> Reviewed-by: Yiwei Zhang <zzyiwei@chromium.org> Reviewed-by: Ryan Neph <ryanneph@google.com> Acked-by: Gert Wollny <gert.wollny@collabora.com>macos/master
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@ -1,312 +0,0 @@ |
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/**************************************************************************
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*
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* Copyright 1999-2006 Brian Paul |
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* Copyright 2008 VMware, Inc. |
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* All Rights Reserved. |
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*
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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* |
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**************************************************************************/ |
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/**
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* @file |
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*
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* Thread, mutex, condition variable, barrier, semaphore and |
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* thread-specific data functions. |
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*/ |
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#ifndef OS_THREAD_H_ |
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#define OS_THREAD_H_ |
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#include "pipe/p_compiler.h" |
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#include "util/u_debug.h" /* for assert */ |
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#include "c11/threads.h" |
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#ifdef HAVE_PTHREAD |
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#include <signal.h> |
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#endif |
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#ifdef PIPE_OS_LINUX |
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#include <sys/prctl.h> |
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#endif |
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/* pipe_thread
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*/ |
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typedef thrd_t pipe_thread; |
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#define PIPE_THREAD_ROUTINE( name, param ) \ |
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int name( void *param ) |
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static inline pipe_thread pipe_thread_create( PIPE_THREAD_ROUTINE((*routine), ), void *param ) |
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{ |
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pipe_thread thread; |
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#ifdef HAVE_PTHREAD |
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sigset_t saved_set, new_set; |
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int ret; |
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sigfillset(&new_set); |
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pthread_sigmask(SIG_SETMASK, &new_set, &saved_set); |
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ret = thrd_create( &thread, routine, param ); |
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pthread_sigmask(SIG_SETMASK, &saved_set, NULL); |
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#else |
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int ret; |
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ret = thrd_create( &thread, routine, param ); |
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#endif |
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if (ret) |
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return 0; |
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return thread; |
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} |
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static inline int pipe_thread_wait( pipe_thread thread ) |
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{ |
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return thrd_join( thread, NULL ); |
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} |
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static inline int pipe_thread_destroy( pipe_thread thread ) |
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{ |
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return thrd_detach( thread ); |
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} |
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static inline void pipe_thread_setname( const char *name ) |
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{ |
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#ifdef PIPE_OS_LINUX |
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prctl(PR_SET_NAME, name, 0, 0, 0); |
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#else |
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(void)name; |
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#endif |
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} |
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/* pipe_mutex
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*/ |
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typedef mtx_t pipe_mutex; |
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#define pipe_static_mutex(mutex) \ |
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static pipe_mutex mutex = _MTX_INITIALIZER_NP |
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#define pipe_mutex_init(mutex) \ |
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(void) mtx_init(&(mutex), mtx_plain) |
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#define pipe_mutex_destroy(mutex) \ |
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mtx_destroy(&(mutex)) |
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#define pipe_mutex_lock(mutex) \ |
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(void) mtx_lock(&(mutex)) |
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#define pipe_mutex_unlock(mutex) \ |
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(void) mtx_unlock(&(mutex)) |
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/* pipe_condvar
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*/ |
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typedef cnd_t pipe_condvar; |
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#define pipe_condvar_init(cond) \ |
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cnd_init(&(cond)) |
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#define pipe_condvar_destroy(cond) \ |
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cnd_destroy(&(cond)) |
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#define pipe_condvar_wait(cond, mutex) \ |
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cnd_wait(&(cond), &(mutex)) |
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#define pipe_condvar_signal(cond) \ |
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cnd_signal(&(cond)) |
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#define pipe_condvar_broadcast(cond) \ |
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cnd_broadcast(&(cond)) |
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/*
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* pipe_barrier |
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*/ |
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#if (defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HURD)) && !defined(PIPE_OS_ANDROID) |
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typedef pthread_barrier_t pipe_barrier; |
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static inline void pipe_barrier_init(pipe_barrier *barrier, unsigned count) |
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{ |
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pthread_barrier_init(barrier, NULL, count); |
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} |
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static inline void pipe_barrier_destroy(pipe_barrier *barrier) |
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{ |
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pthread_barrier_destroy(barrier); |
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} |
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static inline void pipe_barrier_wait(pipe_barrier *barrier) |
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{ |
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pthread_barrier_wait(barrier); |
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} |
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#else /* If the OS doesn't have its own, implement barriers using a mutex and a condvar */ |
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typedef struct { |
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unsigned count; |
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unsigned waiters; |
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uint64_t sequence; |
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pipe_mutex mutex; |
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pipe_condvar condvar; |
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} pipe_barrier; |
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static inline void pipe_barrier_init(pipe_barrier *barrier, unsigned count) |
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{ |
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barrier->count = count; |
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barrier->waiters = 0; |
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barrier->sequence = 0; |
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pipe_mutex_init(barrier->mutex); |
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pipe_condvar_init(barrier->condvar); |
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} |
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static inline void pipe_barrier_destroy(pipe_barrier *barrier) |
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{ |
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assert(barrier->waiters == 0); |
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pipe_mutex_destroy(barrier->mutex); |
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pipe_condvar_destroy(barrier->condvar); |
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} |
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static inline void pipe_barrier_wait(pipe_barrier *barrier) |
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{ |
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pipe_mutex_lock(barrier->mutex); |
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assert(barrier->waiters < barrier->count); |
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barrier->waiters++; |
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if (barrier->waiters < barrier->count) { |
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uint64_t sequence = barrier->sequence; |
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do { |
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pipe_condvar_wait(barrier->condvar, barrier->mutex); |
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} while (sequence == barrier->sequence); |
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} else { |
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barrier->waiters = 0; |
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barrier->sequence++; |
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pipe_condvar_broadcast(barrier->condvar); |
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} |
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pipe_mutex_unlock(barrier->mutex); |
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} |
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#endif |
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/*
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* Semaphores |
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*/ |
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typedef struct |
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{ |
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pipe_mutex mutex; |
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pipe_condvar cond; |
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int counter; |
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} pipe_semaphore; |
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static inline void |
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pipe_semaphore_init(pipe_semaphore *sema, int init_val) |
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{ |
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pipe_mutex_init(sema->mutex); |
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pipe_condvar_init(sema->cond); |
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sema->counter = init_val; |
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} |
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static inline void |
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pipe_semaphore_destroy(pipe_semaphore *sema) |
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{ |
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pipe_mutex_destroy(sema->mutex); |
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pipe_condvar_destroy(sema->cond); |
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} |
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/** Signal/increment semaphore counter */ |
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static inline void |
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pipe_semaphore_signal(pipe_semaphore *sema) |
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{ |
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pipe_mutex_lock(sema->mutex); |
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sema->counter++; |
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pipe_condvar_signal(sema->cond); |
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pipe_mutex_unlock(sema->mutex); |
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} |
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/** Wait for semaphore counter to be greater than zero */ |
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static inline void |
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pipe_semaphore_wait(pipe_semaphore *sema) |
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{ |
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pipe_mutex_lock(sema->mutex); |
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while (sema->counter <= 0) { |
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pipe_condvar_wait(sema->cond, sema->mutex); |
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} |
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sema->counter--; |
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pipe_mutex_unlock(sema->mutex); |
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} |
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/*
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* Thread-specific data. |
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*/ |
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typedef struct { |
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tss_t key; |
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int initMagic; |
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} pipe_tsd; |
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#define PIPE_TSD_INIT_MAGIC 0xff8adc98 |
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static inline void |
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pipe_tsd_init(pipe_tsd *tsd) |
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{ |
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if (tss_create(&tsd->key, NULL/*free*/) != 0) { |
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exit(-1); |
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} |
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tsd->initMagic = PIPE_TSD_INIT_MAGIC; |
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} |
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static inline void * |
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pipe_tsd_get(pipe_tsd *tsd) |
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{ |
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if (tsd->initMagic != (int) PIPE_TSD_INIT_MAGIC) { |
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pipe_tsd_init(tsd); |
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} |
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return tss_get(tsd->key); |
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} |
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static inline void |
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pipe_tsd_set(pipe_tsd *tsd, void *value) |
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{ |
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if (tsd->initMagic != (int) PIPE_TSD_INIT_MAGIC) { |
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pipe_tsd_init(tsd); |
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} |
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if (tss_set(tsd->key, value) != 0) { |
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exit(-1); |
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} |
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} |
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#endif /* OS_THREAD_H_ */ |
@ -0,0 +1,396 @@ |
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/**************************************************************************
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*
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* Copyright 1999-2006 Brian Paul |
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* Copyright 2008 VMware, Inc. |
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* All Rights Reserved. |
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*
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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* |
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**************************************************************************/ |
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#ifndef U_THREAD_H_ |
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#define U_THREAD_H_ |
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#include <errno.h> |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include <string.h> |
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#include "c11/threads.h" |
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#include "detect_os.h" |
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#include "macros.h" |
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#ifdef HAVE_PTHREAD |
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#include <signal.h> |
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#ifdef HAVE_PTHREAD_NP_H |
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#include <pthread_np.h> |
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#endif |
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#endif |
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#ifdef __HAIKU__ |
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#include <OS.h> |
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#endif |
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#if DETECT_OS_LINUX && !defined(ANDROID) |
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#include <sched.h> |
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#elif defined(_WIN32) && !defined(__CYGWIN__) && _WIN32_WINNT >= 0x0600 |
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#include <windows.h> |
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#endif |
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#ifdef __FreeBSD__ |
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/* pthread_np.h -> sys/param.h -> machine/param.h
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* - defines ALIGN which clashes with our ALIGN |
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*/ |
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#undef ALIGN |
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#define cpu_set_t cpuset_t |
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#endif |
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/* For util_set_thread_affinity to size the mask. */ |
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#define UTIL_MAX_CPUS 1024 /* this should be enough */ |
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#define UTIL_MAX_L3_CACHES UTIL_MAX_CPUS |
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/* Some highly performance-sensitive thread-local variables like the current GL
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* context are declared with the initial-exec model on Linux. glibc allocates a |
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* fixed number of extra slots for initial-exec TLS variables at startup, and |
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* Mesa relies on (even if it's dlopen()ed after init) being able to fit into |
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* those. This model saves the call to look up the address of the TLS variable. |
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* |
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* However, if we don't have this TLS model available on the platform, then we |
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* still want to use normal TLS (which involves a function call, but not the |
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* expensive pthread_getspecific() or its equivalent). |
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*/ |
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#ifdef _MSC_VER |
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#define __THREAD_INITIAL_EXEC __declspec(thread) |
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#elif defined(ANDROID) |
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/* Android 29 gained ELF TLS support, but it doesn't support initial-exec and
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* it will throw: |
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* |
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* dlopen failed: TLS symbol "(null)" in dlopened |
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* "/vendor/lib64/egl/libEGL_mesa.so" referenced from |
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* "/vendor/lib64/egl/libEGL_mesa.so" using IE access model. |
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*/ |
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#define __THREAD_INITIAL_EXEC __thread |
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#else |
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#define __THREAD_INITIAL_EXEC __thread __attribute__((tls_model("initial-exec"))) |
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#endif |
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static inline int |
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util_get_current_cpu(void) |
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{ |
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#if DETECT_OS_LINUX && !defined(ANDROID) |
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return sched_getcpu(); |
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#elif defined(_WIN32) && !defined(__CYGWIN__) && _WIN32_WINNT >= 0x0600 |
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return GetCurrentProcessorNumber(); |
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#else |
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return -1; |
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#endif |
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} |
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static inline thrd_t u_thread_create(int (*routine)(void *), void *param) |
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{ |
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thrd_t thread; |
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#ifdef HAVE_PTHREAD |
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sigset_t saved_set, new_set; |
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int ret; |
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sigfillset(&new_set); |
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sigdelset(&new_set, SIGSYS); |
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pthread_sigmask(SIG_BLOCK, &new_set, &saved_set); |
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ret = thrd_create( &thread, routine, param ); |
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pthread_sigmask(SIG_SETMASK, &saved_set, NULL); |
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#else |
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int ret; |
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ret = thrd_create( &thread, routine, param ); |
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#endif |
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if (ret) |
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return 0; |
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return thread; |
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} |
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static inline void u_thread_setname( const char *name ) |
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{ |
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#if defined(HAVE_PTHREAD) |
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#if DETECT_OS_LINUX || DETECT_OS_CYGWIN || DETECT_OS_SOLARIS |
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int ret = pthread_setname_np(pthread_self(), name); |
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if (ret == ERANGE) { |
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char buf[16]; |
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const size_t len = MIN2(strlen(name), ARRAY_SIZE(buf) - 1); |
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memcpy(buf, name, len); |
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buf[len] = '\0'; |
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pthread_setname_np(pthread_self(), buf); |
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} |
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#elif DETECT_OS_FREEBSD || DETECT_OS_OPENBSD |
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pthread_set_name_np(pthread_self(), name); |
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#elif DETECT_OS_NETBSD |
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pthread_setname_np(pthread_self(), "%s", (void *)name); |
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#elif DETECT_OS_APPLE |
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pthread_setname_np(name); |
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#elif DETECT_OS_HAIKU |
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rename_thread(find_thread(NULL), name); |
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#else |
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#warning Not sure how to call pthread_setname_np |
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#endif |
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#endif |
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(void)name; |
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} |
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/**
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* Set thread affinity. |
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* |
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* \param thread Thread |
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* \param mask Set this affinity mask |
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* \param old_mask Previous affinity mask returned if not NULL |
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* \param num_mask_bits Number of bits in both masks |
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* \return true on success |
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*/ |
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static inline bool |
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util_set_thread_affinity(thrd_t thread, |
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const uint32_t *mask, |
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uint32_t *old_mask, |
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unsigned num_mask_bits) |
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{ |
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#if defined(HAVE_PTHREAD_SETAFFINITY) |
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cpu_set_t cpuset; |
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|
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if (old_mask) { |
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if (pthread_getaffinity_np(thread, sizeof(cpuset), &cpuset) != 0) |
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return false; |
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|
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memset(old_mask, 0, num_mask_bits / 8); |
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for (unsigned i = 0; i < num_mask_bits && i < CPU_SETSIZE; i++) { |
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if (CPU_ISSET(i, &cpuset)) |
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old_mask[i / 32] |= 1u << (i % 32); |
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} |
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} |
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|
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CPU_ZERO(&cpuset); |
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for (unsigned i = 0; i < num_mask_bits && i < CPU_SETSIZE; i++) { |
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if (mask[i / 32] & (1u << (i % 32))) |
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CPU_SET(i, &cpuset); |
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} |
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return pthread_setaffinity_np(thread, sizeof(cpuset), &cpuset) == 0; |
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|
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#elif defined(_WIN32) && !defined(__CYGWIN__) |
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DWORD_PTR m = mask[0]; |
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|
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if (sizeof(m) > 4 && num_mask_bits > 32) |
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m |= (uint64_t)mask[1] << 32; |
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|
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m = SetThreadAffinityMask(thread, m); |
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if (!m) |
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return false; |
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|
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if (old_mask) { |
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memset(old_mask, 0, num_mask_bits / 8); |
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|
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old_mask[0] = m; |
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#ifdef _WIN64 |
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old_mask[1] = m >> 32; |
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#endif |
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} |
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|
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return true; |
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#else |
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return false; |
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#endif |
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} |
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|
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static inline bool |
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util_set_current_thread_affinity(const uint32_t *mask, |
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uint32_t *old_mask, |
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unsigned num_mask_bits) |
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{ |
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#if defined(HAVE_PTHREAD_SETAFFINITY) |
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return util_set_thread_affinity(pthread_self(), mask, old_mask, |
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num_mask_bits); |
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|
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#elif defined(_WIN32) && !defined(__CYGWIN__) |
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/* The GetCurrentThreadId() handle is only valid within the current thread. */ |
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return util_set_thread_affinity(GetCurrentThread(), mask, old_mask, |
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num_mask_bits); |
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|
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#else |
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return false; |
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#endif |
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} |
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|
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|
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/*
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* Thread statistics. |
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*/ |
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|
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/* Return the time of a thread's CPU time clock. */ |
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static inline int64_t |
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util_thread_get_time_nano(thrd_t thread) |
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{ |
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#if defined(HAVE_PTHREAD) && !defined(__APPLE__) && !defined(__HAIKU__) |
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struct timespec ts; |
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clockid_t cid; |
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|
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pthread_getcpuclockid(thread, &cid); |
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clock_gettime(cid, &ts); |
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return (int64_t)ts.tv_sec * 1000000000 + ts.tv_nsec; |
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#else |
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return 0; |
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#endif |
||||
} |
||||
|
||||
/* Return the time of the current thread's CPU time clock. */ |
||||
static inline int64_t |
||||
util_current_thread_get_time_nano(void) |
||||
{ |
||||
#if defined(HAVE_PTHREAD) |
||||
return util_thread_get_time_nano(pthread_self()); |
||||
|
||||
#elif defined(_WIN32) && !defined(__CYGWIN__) |
||||
/* The GetCurrentThreadId() handle is only valid within the current thread. */ |
||||
return util_thread_get_time_nano(GetCurrentThread()); |
||||
|
||||
#else |
||||
return 0; |
||||
#endif |
||||
} |
||||
|
||||
static inline bool u_thread_is_self(thrd_t thread) |
||||
{ |
||||
#if defined(HAVE_PTHREAD) |
||||
return pthread_equal(pthread_self(), thread); |
||||
#endif |
||||
return false; |
||||
} |
||||
|
||||
/*
|
||||
* util_barrier |
||||
*/ |
||||
|
||||
#if defined(HAVE_PTHREAD) && !defined(__APPLE__) && !defined(__HAIKU__) |
||||
|
||||
typedef pthread_barrier_t util_barrier; |
||||
|
||||
static inline void util_barrier_init(util_barrier *barrier, unsigned count) |
||||
{ |
||||
pthread_barrier_init(barrier, NULL, count); |
||||
} |
||||
|
||||
static inline void util_barrier_destroy(util_barrier *barrier) |
||||
{ |
||||
pthread_barrier_destroy(barrier); |
||||
} |
||||
|
||||
static inline void util_barrier_wait(util_barrier *barrier) |
||||
{ |
||||
pthread_barrier_wait(barrier); |
||||
} |
||||
|
||||
|
||||
#else /* If the OS doesn't have its own, implement barriers using a mutex and a condvar */ |
||||
|
||||
typedef struct { |
||||
unsigned count; |
||||
unsigned waiters; |
||||
uint64_t sequence; |
||||
mtx_t mutex; |
||||
cnd_t condvar; |
||||
} util_barrier; |
||||
|
||||
static inline void util_barrier_init(util_barrier *barrier, unsigned count) |
||||
{ |
||||
barrier->count = count; |
||||
barrier->waiters = 0; |
||||
barrier->sequence = 0; |
||||
(void) mtx_init(&barrier->mutex, mtx_plain); |
||||
cnd_init(&barrier->condvar); |
||||
} |
||||
|
||||
static inline void util_barrier_destroy(util_barrier *barrier) |
||||
{ |
||||
assert(barrier->waiters == 0); |
||||
mtx_destroy(&barrier->mutex); |
||||
cnd_destroy(&barrier->condvar); |
||||
} |
||||
|
||||
static inline void util_barrier_wait(util_barrier *barrier) |
||||
{ |
||||
mtx_lock(&barrier->mutex); |
||||
|
||||
assert(barrier->waiters < barrier->count); |
||||
barrier->waiters++; |
||||
|
||||
if (barrier->waiters < barrier->count) { |
||||
uint64_t sequence = barrier->sequence; |
||||
|
||||
do { |
||||
cnd_wait(&barrier->condvar, &barrier->mutex); |
||||
} while (sequence == barrier->sequence); |
||||
} else { |
||||
barrier->waiters = 0; |
||||
barrier->sequence++; |
||||
cnd_broadcast(&barrier->condvar); |
||||
} |
||||
|
||||
mtx_unlock(&barrier->mutex); |
||||
} |
||||
|
||||
#endif |
||||
|
||||
/*
|
||||
* Thread-id's. |
||||
* |
||||
* thrd_current() is not portable to windows (or at least not in a desirable |
||||
* way), so thread_id's provide an alternative mechanism |
||||
*/ |
||||
|
||||
#ifdef _WIN32 |
||||
typedef DWORD thread_id; |
||||
#else |
||||
typedef thrd_t thread_id; |
||||
#endif |
||||
|
||||
static inline thread_id |
||||
util_get_thread_id(void) |
||||
{ |
||||
/*
|
||||
* XXX: Callers of of this function assume it is a lightweight function. |
||||
* But unfortunately C11's thrd_current() gives no such guarantees. In |
||||
* fact, it's pretty hard to have a compliant implementation of |
||||
* thrd_current() on Windows with such characteristics. So for now, we |
||||
* side-step this mess and use Windows thread primitives directly here. |
||||
*/ |
||||
#ifdef _WIN32 |
||||
return GetCurrentThreadId(); |
||||
#else |
||||
return thrd_current(); |
||||
#endif |
||||
} |
||||
|
||||
|
||||
static inline int |
||||
util_thread_id_equal(thread_id t1, thread_id t2) |
||||
{ |
||||
#ifdef _WIN32 |
||||
return t1 == t2; |
||||
#else |
||||
return thrd_equal(t1, t2); |
||||
#endif |
||||
} |
||||
|
||||
#endif /* U_THREAD_H_ */ |
Loading…
Reference in new issue