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sortix--sortix/libpthread/pthread_self.c++
Jonas 'Sortie' Termansen 05f8e8f2c6 Add pthread_self(3).
2014-07-08 17:41:50 +02:00

38 lines
1.3 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of Sortix libpthread.
Sortix libpthread is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
Sortix libpthread is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with Sortix libpthread. If not, see <http://www.gnu.org/licenses/>.
pthread_self.c++
Returns the identity of the current thread.
*******************************************************************************/
#include <pthread.h>
extern "C" pthread_t pthread_self(void)
{
pthread_t current_thread;
#if defined(__i386__)
asm ( "mov %%gs:0, %0" : "=r"(current_thread));
#elif defined(__x86_64__)
asm ( "mov %%fs:0, %0" : "=r"(current_thread));
#else
#error "You need to implement pthread_self for your platform"
#endif
return current_thread;
}