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Add pthread_getspecific(3) and pthread_setspecific(3).
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parent
7e452f97f6
commit
12dcfd7b47
5 changed files with 129 additions and 2 deletions
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@ -23,6 +23,7 @@ pthread_cond_timedwait.o \
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pthread_cond_wait.o \
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pthread_equal.o \
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pthread_exit.o \
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pthread_getspecific.o \
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pthread_initialize.o \
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pthread_key_create.o \
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pthread_key_delete.o \
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@ -43,6 +44,7 @@ pthread_rwlock_trywrlock.o \
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pthread_rwlock_unlock.o \
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pthread_rwlock_wrlock.o \
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pthread_self.o \
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pthread_setspecific.o \
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BINS:=libpthread.a
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@ -139,6 +139,8 @@ typedef __pthread_t pthread_t;
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struct pthread
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{
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struct uthread uthread;
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void** keys;
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size_t keys_length;
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};
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#endif
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@ -228,7 +230,7 @@ void pthread_exit(void*);
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/* TODO: pthread_getconcurrency */
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/* TODO: pthread_getcpuclockid */
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/* TODO: pthread_getschedparam */
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/* TODO: pthread_getspecific */
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void* pthread_getspecific(pthread_key_t);
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/* TODO: pthread_join */
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int pthread_key_create(pthread_key_t*, void (*)(void*));
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int pthread_key_delete(pthread_key_t);
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@ -275,7 +277,7 @@ pthread_t pthread_self(void);
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/* TODO: pthread_setconcurrency */
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/* TODO: pthread_setschedparam */
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/* TODO: pthread_setschedprio */
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/* TODO: pthread_setspecific */
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int pthread_setspecific(pthread_key_t, const void*);
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/* TODO: pthread_spin_destroy */
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/* TODO: pthread_spin_init */
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/* TODO: pthread_spin_lock */
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@ -34,6 +34,28 @@ __attribute__((__noreturn__))
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void pthread_exit(void* /*return_value*/)
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{
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struct pthread* thread = pthread_self();
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pthread_mutex_lock(&__pthread_keys_lock);
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bool keys_left = true;
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while ( keys_left )
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{
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keys_left = false;
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for ( pthread_key_t key = 0; key < thread->keys_length; key++ )
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{
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void* key_value = thread->keys[key];
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if ( !key_value )
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continue;
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thread->keys[key] = NULL;
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if ( __pthread_keys[key].destructor )
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__pthread_keys[key].destructor(key_value);
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keys_left = true;
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}
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}
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free(thread->keys);
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thread->keys = NULL;
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thread->keys_length = 0;
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pthread_mutex_unlock(&__pthread_keys_lock);
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size_t num_threads = 1;
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if ( num_threads == 1 )
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exit(0);
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43
libpthread/pthread_getspecific.c++
Normal file
43
libpthread/pthread_getspecific.c++
Normal file
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@ -0,0 +1,43 @@
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2014.
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This file is part of Sortix libpthread.
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Sortix libpthread is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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Sortix libpthread is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with Sortix libpthread. If not, see <http://www.gnu.org/licenses/>.
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pthread_getspecific.c++
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Thread-specific data management.
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*******************************************************************************/
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#include <assert.h>
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#include <pthread.h>
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extern "C" void* pthread_getspecific(pthread_key_t key)
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{
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struct pthread* thread = pthread_self();
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if ( key < thread->keys_length )
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return thread->keys[key];
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pthread_mutex_lock(&__pthread_keys_lock);
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assert(key < __pthread_keys_length);
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assert(__pthread_keys[key].destructor);
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pthread_mutex_unlock(&__pthread_keys_lock);
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return NULL;
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}
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58
libpthread/pthread_setspecific.c++
Normal file
58
libpthread/pthread_setspecific.c++
Normal file
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@ -0,0 +1,58 @@
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2014.
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This file is part of Sortix libpthread.
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Sortix libpthread is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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Sortix libpthread is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with Sortix libpthread. If not, see <http://www.gnu.org/licenses/>.
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pthread_setspecific.c++
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Thread-specific data management.
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*******************************************************************************/
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#include <assert.h>
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#include <errno.h>
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#include <pthread.h>
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#include <stdlib.h>
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extern "C" int pthread_setspecific(pthread_key_t key, const void* value_const)
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{
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void* value = (void*) value_const;
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struct pthread* thread = pthread_self();
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if ( key < thread->keys_length )
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return thread->keys[key] = value, 0;
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pthread_mutex_lock(&__pthread_keys_lock);
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assert(key < __pthread_keys_length);
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assert(__pthread_keys[key].destructor);
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pthread_mutex_unlock(&__pthread_keys_lock);
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size_t old_length = thread->keys_length;
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size_t new_length = __pthread_keys_length;
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size_t new_size = new_length * sizeof(void*);
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void** new_keys = (void**) realloc(thread->keys, new_size);
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if ( !new_keys )
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return errno;
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thread->keys = new_keys;
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thread->keys_length = new_length;
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for ( size_t i = old_length; i < new_length; i++ )
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new_keys[i] = NULL;
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return thread->keys[key] = value, 0;
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}
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