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#ifndef XTHREAD_H_ |
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#define XTHREAD_H_ |
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|
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/* whether word reads are potentially non-atomic. |
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* this is conservative, likely most arches this runs |
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* on have atomic word read/writes. |
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*/ |
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#ifndef WORDACCESS_UNSAFE |
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# if __i386 || __x86_64 |
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# define WORDACCESS_UNSAFE 0 |
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# else |
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# define WORDACCESS_UNSAFE 1 |
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# endif |
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#endif |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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#ifdef _WIN32 |
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|
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//#define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls, fails with mingw |
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#if _WIN32_WINNT < 0x400 |
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# define _WIN32_WINNT 0x400 // maybe working alternative for mingw |
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#endif |
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#include <stdio.h>//D |
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#include <fcntl.h> |
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#include <io.h> |
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#include <time.h> |
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#include <winsock2.h> |
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#include <process.h> |
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#include <windows.h> |
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|
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/* work around some bugs in ptw32 */ |
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#if defined(__MINGW32__) && defined(_TIMESPEC_DEFINED) |
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#define HAVE_STRUCT_TIMESPEC 1 |
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#endif |
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|
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#include <pthread.h> |
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#ifndef pthread_sigmask |
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# define sigset_t int |
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# define sigfillset(a) |
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# define pthread_sigmask(a,b,c) |
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# define sigaddset(a,b) |
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# define sigemptyset(s) |
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#endif |
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|
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typedef pthread_mutex_t xmutex_t; |
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#define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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#define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0) |
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#define X_LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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|
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typedef pthread_cond_t xcond_t; |
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#define X_COND_INIT PTHREAD_COND_INITIALIZER |
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#define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0) |
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#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond)) |
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#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex)) |
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#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to)) |
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|
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typedef pthread_t xthread_t; |
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#define X_THREAD_PROC(name) static void *name (void *thr_arg) |
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#define X_THREAD_ATFORK(a,b,c) |
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|
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static int |
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xthread_create (xthread_t *tid, void *(*proc)(void *), void *arg) |
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{ |
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int retval; |
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#if 0 |
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pthread_attr_t attr; |
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|
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pthread_attr_init (&attr); |
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pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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|
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retval = pthread_create (tid, &attr, proc, arg) == 0; |
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|
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pthread_attr_destroy (&attr); |
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#else |
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retval = pthread_create (tid, 0, proc, arg) == 0; |
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|
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if (retval) |
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pthread_detach (*tid); |
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#endif |
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|
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return retval; |
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} |
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|
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#define respipe_read(a,b,c) PerlSock_recv ((a), (b), (c), 0) |
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#define respipe_write(a,b,c) send ((a), (b), (c), 0) |
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#define respipe_close(a) PerlSock_closesocket ((a)) |
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|
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#else |
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///////////////////////////////////////////////////////////////////////////// |
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|
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#if __linux && !defined(_GNU_SOURCE) |
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# define _GNU_SOURCE |
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#endif |
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|
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/* just in case */ |
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#define _REENTRANT 1 |
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|
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#if __solaris |
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# define _POSIX_PTHREAD_SEMANTICS 1 |
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/* try to bribe solaris headers into providing a current pthread API |
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* despite environment being configured for an older version. |
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*/ |
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# define __EXTENSIONS__ 1 |
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#endif |
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|
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <signal.h> |
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#include <limits.h> |
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#include <pthread.h> |
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|
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typedef pthread_mutex_t xmutex_t; |
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#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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# define X_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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# define X_MUTEX_CREATE(mutex) \ |
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do { \ |
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pthread_mutexattr_t attr; \ |
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pthread_mutexattr_init (&attr); \ |
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pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_ADAPTIVE_NP); \ |
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pthread_mutex_init (&(mutex), &attr); \ |
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} while (0) |
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#else |
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# define X_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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# define X_MUTEX_CREATE(mutex) pthread_mutex_init (&(mutex), 0) |
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#endif |
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#define X_LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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#define X_UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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|
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typedef pthread_cond_t xcond_t; |
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#define X_COND_INIT PTHREAD_COND_INITIALIZER |
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#define X_COND_CREATE(cond) pthread_cond_init (&(cond), 0) |
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#define X_COND_SIGNAL(cond) pthread_cond_signal (&(cond)) |
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#define X_COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex)) |
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#define X_COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to)) |
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|
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typedef pthread_t xthread_t; |
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#define X_THREAD_PROC(name) static void *name (void *thr_arg) |
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#define X_THREAD_ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child) |
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|
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// the broken bsd's once more |
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#ifndef PTHREAD_STACK_MIN |
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# define PTHREAD_STACK_MIN 0 |
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#endif |
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|
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#ifndef X_STACKSIZE |
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# define X_STACKSIZE sizeof (void *) * 4096 |
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#endif |
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|
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static int |
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xthread_create (xthread_t *tid, void *(*proc)(void *), void *arg) |
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{ |
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int retval; |
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sigset_t fullsigset, oldsigset; |
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pthread_attr_t attr; |
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|
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pthread_attr_init (&attr); |
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pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < X_STACKSIZE ? X_STACKSIZE : PTHREAD_STACK_MIN); |
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#ifdef PTHREAD_SCOPE_PROCESS |
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pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
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#endif |
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|
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sigfillset (&fullsigset); |
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|
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pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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retval = pthread_create (tid, &attr, proc, arg) == 0; |
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pthread_sigmask (SIG_SETMASK, &oldsigset, 0); |
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|
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pthread_attr_destroy (&attr); |
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|
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return retval; |
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} |
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|
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#define respipe_read(a,b,c) read ((a), (b), (c)) |
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#define respipe_write(a,b,c) write ((a), (b), (c)) |
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#define respipe_close(a) close ((a)) |
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|
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#endif |
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|
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#if __linux && __GNUC__ >= 4 && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 3 && 0 /* also check arch */ |
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/* __thread has little to no advantage over pthread_* in most configurations, so this is not used */ |
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# define X_TLS_DECLARE(varname) __thread void *varname |
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# define X_TLS_INIT(varname) |
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# define X_TLS_SET(varname,value) varname = (value) |
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# define X_TLS_GET(varname) varname |
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#else |
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# define X_TLS_DECLARE(varname) pthread_key_t varname |
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# define X_TLS_INIT(varname) do { if (pthread_key_create (&(varname), 0)) abort (); } while (0) |
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# define X_TLS_SET(varname,value) pthread_setspecific (varname, (value)) |
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# define X_TLS_GET(varname) pthread_getspecific (varname) |
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#endif |
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|
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#endif |
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