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/* pthread.cc: posix pthread interface for Cygwin
Copyright 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.
Originally written by Marco Fuykschot <marco@ddi.nl>
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include "thread.h"
#include "cygerrno.h"
#include <stdarg.h>
#include <sys/fcntl.h>
extern "C"
{
/* ThreadCreation */
int
pthread_create (pthread_t * thread, const pthread_attr_t * attr,
void *(*start_routine) (void *), void *arg)
{
return pthread::create (thread, attr, start_routine, arg);
}
int
pthread_once (pthread_once_t * once_control, void (*init_routine) (void))
{
return pthread::once (once_control, init_routine);
}
int
pthread_atfork (void (*prepare)(void), void (*parent)(void), void (*child)(void))
{
return pthread::atfork (prepare, parent, child);
}
/* Thread Exit */
void
pthread_exit (void *value_ptr)
{
return pthread::self ()->exit (value_ptr);
}
int
pthread_join (pthread_t thread, void **return_val)
{
return pthread::join (&thread, (void **) return_val);
}
int
pthread_detach (pthread_t thread)
{
return pthread::detach (&thread);
}
/* This isn't a posix call... should we keep it? */
int
pthread_suspend (pthread_t thread)
{
return pthread::suspend (&thread);
}
/* same */
int
pthread_continue (pthread_t thread)
{
return pthread::resume (&thread);
}
unsigned long
pthread_getsequence_np (pthread_t * thread)
{
if (!pthread::is_good_object (thread))
return EINVAL;
return (*thread)->getsequence_np ();
}
/* ID */
pthread_t pthread_self ()
{
return pthread::self ();
}
/* Mutexes */
int
pthread_mutex_init (pthread_mutex_t * mutex, const pthread_mutexattr_t * attr)
{
return pthread_mutex::init (mutex, attr);
}
/* Synchronisation */
int
pthread_cond_init (pthread_cond_t * cond, const pthread_condattr_t * attr)
{
return pthread_cond::init (cond, attr);
}
/* RW Locks */
int
pthread_rwlock_init (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr)
{
return pthread_rwlock::init (rwlock, attr);
}
/* Cancelability */
int
pthread_cancel (pthread_t thread)
{
return pthread::cancel (thread);
}
int
pthread_setcancelstate (int state, int *oldstate)
{
return pthread::self ()->setcancelstate (state, oldstate);
}
int
pthread_setcanceltype (int type, int *oldtype)
{
return pthread::self ()->setcanceltype (type, oldtype);
}
void
pthread_testcancel (void)
{
pthread::self ()->testcancel ();
}
void
_pthread_cleanup_push (__pthread_cleanup_handler *handler)
{
pthread::self ()->push_cleanup_handler (handler);
}
void
_pthread_cleanup_pop (int execute)
{
pthread::self ()->pop_cleanup_handler (execute);
}
/* Semaphores */
int
sem_init (sem_t * sem, int pshared, unsigned int value)
{
return semaphore::init (sem, pshared, value);
}
int
sem_destroy (sem_t * sem)
{
return semaphore::destroy (sem);
}
/* Mangle semaphore name to follow windows naming rules. Prepend "Global\"
if running on terminal service aware machine. Substitute invalid backslash
by forward slash characters, hoping not to collide. */
static bool
mangle_sem_name (char *mangled, const char *name)
{
if (check_null_empty_str_errno (name))
return false;
int len = strlen (name);
if (len >= CYG_MAX_PATH
|| (wincap.has_terminal_services () && len >= CYG_MAX_PATH - 7))
{
set_errno (EINVAL);
return false;
}
strcpy (mangled, wincap.has_terminal_services () ? "Global\\" : "");
char *d = mangled + strlen (mangled);
const char *s = name;
while (*s)
*d++ = (*s == '\\') ? '/' : *s++;
*d = '\0';
return true;
}
sem_t *
sem_open (const char *name, int oflag, ...)
{
mode_t mode = 0;
unsigned int value = 0;
if (oflag & O_CREAT)
{
va_list ap;
va_start (ap, oflag);
mode = va_arg (ap, mode_t);
value = va_arg (ap, unsigned int);
va_end (ap);
}
char mangled_name[CYG_MAX_PATH];
if (!mangle_sem_name (mangled_name, name))
return NULL;
return semaphore::open (mangled_name, oflag, mode, value);
}
int
sem_close (sem_t * sem)
{
return semaphore::destroy (sem);
}
int
sem_wait (sem_t * sem)
{
return semaphore::wait (sem);
}
int
sem_trywait (sem_t * sem)
{
return semaphore::trywait (sem);
}
int
sem_timedwait (sem_t * sem, const struct timespec *abstime)
{
return semaphore::timedwait (sem, abstime);
}
int
sem_post (sem_t * sem)
{
return semaphore::post (sem);
}
int
sem_getvalue (sem_t * sem, int *sval)
{
return semaphore::getvalue (sem, sval);
}
}
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