/src/unix/eio/xthread.h
http://github.com/joyent/libuv · C Header · 164 lines · 120 code · 33 blank · 11 comment · 7 complexity · 19b2da986b07922da5276a351dc77b2e MD5 · raw file
- #ifndef XTHREAD_H_
- #define XTHREAD_H_
- /* whether word reads are potentially non-atomic.
- * this is conservative, likely most arches this runs
- * on have atomic word read/writes.
- */
- #ifndef WORDACCESS_UNSAFE
- # if __i386 || __x86_64
- # define WORDACCESS_UNSAFE 0
- # else
- # define WORDACCESS_UNSAFE 1
- # endif
- #endif
- /////////////////////////////////////////////////////////////////////////////
- #ifdef _WIN32
- #include <stdio.h>//D
- #include <fcntl.h>
- #include <io.h>
- #include <time.h>
- #include <winsock2.h>
- #include <process.h>
- #include <windows.h>
- #include <pthread.h>
- #define sigset_t int
- #define sigfillset(a)
- #define pthread_sigmask(a,b,c)
- #define sigaddset(a,b)
- #define sigemptyset(s)
- typedef pthread_mutex_t xmutex_t;
- #define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
- #define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0)
- #define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
- #define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
- typedef pthread_cond_t xcond_t;
- #define X_COND_INIT PTHREAD_COND_INITIALIZER
- #define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0)
- #define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
- #define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
- #define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
- typedef pthread_t xthread_t;
- #define X_THREAD_PROC(name) void *name (void *thr_arg)
- #define X_THREAD_ATFORK(a,b,c)
- static int
- thread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
- {
- int retval;
- pthread_attr_t attr;
- pthread_attr_init (&attr);
- pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
- retval = pthread_create (tid, &attr, proc, arg) == 0;
- pthread_attr_destroy (&attr);
- return retval;
- }
- #define respipe_read(a,b,c) PerlSock_recv ((a), (b), (c), 0)
- #define respipe_write(a,b,c) send ((a), (b), (c), 0)
- #define respipe_close(a) PerlSock_closesocket ((a))
- #else
- /////////////////////////////////////////////////////////////////////////////
- #if __linux && !defined(_GNU_SOURCE)
- # define _GNU_SOURCE
- #endif
- /* just in case */
- #define _REENTRANT 1
- #if __solaris
- # define _POSIX_PTHREAD_SEMANTICS 1
- /* try to bribe solaris headers into providing a current pthread API
- * despite environment being configured for an older version.
- */
- # define __EXTENSIONS__ 1
- #endif
- #include <unistd.h>
- #include <fcntl.h>
- #include <signal.h>
- #include <limits.h>
- #include <pthread.h>
- typedef pthread_mutex_t xmutex_t;
- #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
- # define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
- # define X_MUTEX_CREATE(mutex) \
- do { \
- pthread_mutexattr_t attr; \
- pthread_mutexattr_init (&attr); \
- pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_ADAPTIVE_NP); \
- pthread_mutex_init (&(mutex), &attr); \
- } while (0)
- #else
- # define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
- # define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0)
- #endif
- #define X_LOCK(mutex) pthread_mutex_lock (&(mutex))
- #define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
- typedef pthread_cond_t xcond_t;
- #define X_COND_INIT PTHREAD_COND_INITIALIZER
- #define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0)
- #define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond))
- #define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex))
- #define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to))
- typedef pthread_t xthread_t;
- #define X_THREAD_PROC(name) static void *name (void *thr_arg)
- #define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child)
- // the broken bsd's once more
- #ifndef PTHREAD_STACK_MIN
- # define PTHREAD_STACK_MIN 0
- #endif
- #ifndef XTHREAD_STACKSIZE
- # define XTHREAD_STACKSIZE sizeof (void *) * 4096
- #endif
- static int
- thread_create (xthread_t *tid, void *(*proc)(void *), void *arg)
- {
- int retval;
- sigset_t fullsigset, oldsigset;
- pthread_attr_t attr;
- pthread_attr_init (&attr);
- pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
- pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < X_STACKSIZE ? X_STACKSIZE : PTHREAD_STACK_MIN);
- #ifdef PTHREAD_SCOPE_PROCESS
- pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
- #endif
- sigfillset (&fullsigset);
- pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
- retval = pthread_create (tid, &attr, proc, arg) == 0;
- pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
- pthread_attr_destroy (&attr);
- return retval;
- }
- #define respipe_read(a,b,c) read ((a), (b), (c))
- #define respipe_write(a,b,c) write ((a), (b), (c))
- #define respipe_close(a) close ((a))
- #endif
- #endif