newlib/winsup/cygwin/pthread.cc
Robert Collins 4e78617321 2002-09-11 Robert Collins <rbtcollins@hotmail.com>
* init.cc (dll_entry): On thread detach, if the thread hasn't
        exit()ed, do so.
        * pthread.cc (pthread_getsequence_np): Remove the
        __pthread_getsequence_np wrapper. This requires errno.h.
        * thread.cc (pthread::self): Instantiate a new pthread object
        when called and none exists. return a NULL object if instantiation
        fails.
        (pthread::precreate): Factor out common code.
        (pthread::postcreate): Ditto.
        (pthread::create): Ditto.
        (pthread::exit): Remove the TLS value when we exit to prevent
        double exits.
        (MTinterface::Init): Bugfix - don't mark the TLS index as created
        if one was not allocated.
        Apply Extract Method to move pthread specific initialisation into
        pthread.
        (pthread::initMainThread): Extracted method from MTinterface::Init.
        (pthread::setTlsSelfPointer): Extracted method from various pthread
        calls, to make reading those functions easier.
        (pthread::setThreadIdtoCurrent): Ditto.
        (pthread::cancel_self): Bring into the .cc file, it's only used
        within the class.
        (pthread::getThreadId): Ditto.
        (pthread::thread_init_wrapper): Apply Extract Method to the TLS
        setting logic.
        (pthread::isGoodObject): Extracted method from various pthread
        wrapper calls, for clarity of reading.
        (pthread::getsequence_np): Converted from __pthread_getsquence_np.
        (__pthread_create): Apply Extract Method to the object validation.
        (__pthread_cancel): Ditto.
        (__pthread_join): Ditto.
        (__pthread_detach): Ditto.
        (__pthread_suspend): Ditto.
        (__pthread_continue): Ditto.
        (__pthread_getschedparam): Ditto.
        (__pthread_getsequence_np): Remove.
        (__pthread_setschedparam): Apply Extract Method to the object
        validation.
        (pthreadNull::getNullpthread): New method, return the pthreadNull
        object.
        (pthreadNull::pthreadNull): Private constructor to prevent accidental
        use.
        (pthreadNull::~pthreadNull): Prevent compile warnings.
        (pthreadNull::create): Override pthread behaviour.
        (pthreadNull::exit): Ditto.
        (pthreadNull::cancel): Ditto.
        (pthreadNull::testcancel): Ditto.
        (pthreadNull::setcancelstate): Ditto.
        (pthreadNull::setcanceltype): Ditto.
        (pthreadNull::push_cleanup_handler): Ditto.
        (pthreadNull::pop_cleanup_handler): Ditto.
        (pthreadNull::getsequence_np): Ditto.
        (pthreadNull::_instance): Ditto.
        * thread.h (pthread): Declare pre- and post-create.
        Move GetThreadId to private scope and rename to getThreadId.
        Move setThreadIdtoCurrent to private scope.
        Make create virtual.
        Make ~pthread virtual.
        Declare initMainThread.
        Declare isGoodObject.
        Make exit virtual.
        Make cancel virtual.
        Make testcancel virtual.
        Make setcancelstate virtual.
        Make setcanceltype virtual.
        Make push_cleanup_handler virtual.
        Make pop_cleanup_handler virtual.
        Declare getsequence_np.
        Declare setTlsSelfPointer.
        (pthreadNull): New null object class for pthread.
        (__pthread_getsequence_np): Remove.
2002-09-16 10:53:29 +00:00

493 lines
9.1 KiB
C++

/* pthread.cc: posix pthread interface for Cygwin
Copyright 1998, 1999, 2000, 2001 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 "errno.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);
}
int
pthread_attr_init (pthread_attr_t * attr)
{
return __pthread_attr_init (attr);
}
int
pthread_attr_destroy (pthread_attr_t * attr)
{
return __pthread_attr_destroy (attr);
}
int
pthread_attr_setdetachstate (pthread_attr_t * attr, int detachstate)
{
return __pthread_attr_setdetachstate (attr, detachstate);
}
int
pthread_attr_getdetachstate (const pthread_attr_t * attr, int *detachstate)
{
return __pthread_attr_getdetachstate (attr, detachstate);
}
int
pthread_attr_setstacksize (pthread_attr_t * attr, size_t size)
{
return __pthread_attr_setstacksize (attr, size);
}
int
pthread_attr_getstacksize (const pthread_attr_t * attr, size_t * size)
{
return __pthread_attr_getstacksize (attr, size);
}
int
pthread_attr_setinheritsched (pthread_attr_t * attr, int inheritsched)
{
return __pthread_attr_setinheritsched (attr, inheritsched);
}
int
pthread_attr_getinheritsched (const pthread_attr_t * attr, int *inheritsched)
{
return __pthread_attr_getinheritsched (attr, inheritsched);
}
int
pthread_attr_setschedparam (pthread_attr_t * attr,
const struct sched_param *param)
{
return __pthread_attr_setschedparam (attr, param);
}
int
pthread_attr_getschedparam (const pthread_attr_t * attr,
struct sched_param *param)
{
return __pthread_attr_getschedparam (attr, param);
}
int
pthread_attr_setschedpolicy (pthread_attr_t * attr, int policy)
{
return __pthread_attr_setschedpolicy (attr, policy);
}
int
pthread_attr_getschedpolicy (const pthread_attr_t * attr, int *policy)
{
return __pthread_attr_getschedpolicy (attr, policy);
}
int
pthread_attr_setscope (pthread_attr_t * attr, int contentionscope)
{
return __pthread_attr_setscope (attr, contentionscope);
}
int
pthread_attr_getscope (const pthread_attr_t * attr, int *contentionscope)
{
return __pthread_attr_getscope (attr, contentionscope);
}
#ifdef _POSIX_THREAD_ATTR_STACKADDR
int
pthread_attr_setstackaddr (pthread_attr_t * attr, void *stackaddr)
{
return __pthread_attr_setstackaddr (attr, stackaddr);
}
int
pthread_attr_getstackaddr (const pthread_attr_t * attr, void **stackaddr)
{
return __pthread_attr_getstackaddr (attr, stackaddr);
}
#endif
/* 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_continue (&thread);
}
unsigned long
pthread_getsequence_np (pthread_t * thread)
{
if (!pthread::isGoodObject (thread))
return EINVAL;
return (*thread)->getsequence_np();
}
/* Thread SpecificData */
int
pthread_key_create (pthread_key_t * key, void (*destructor) (void *))
{
return __pthread_key_create (key, destructor);
}
int
pthread_key_delete (pthread_key_t key)
{
return __pthread_key_delete (key);
}
int
pthread_setspecific (pthread_key_t key, const void *value)
{
return __pthread_setspecific (key, value);
}
void *
pthread_getspecific (pthread_key_t key)
{
return (void *) __pthread_getspecific (key);
}
/* Thread signal */
int
pthread_kill (pthread_t thread, int sig)
{
return __pthread_kill (thread, sig);
}
int
pthread_sigmask (int operation, const sigset_t * set, sigset_t * old_set)
{
return __pthread_sigmask (operation, set, old_set);
}
/* ID */
pthread_t pthread_self ()
{
return pthread::self();
}
int
pthread_equal (pthread_t t1, pthread_t t2)
{
return __pthread_equal (&t1, &t2);
}
/* Mutexes */
int
pthread_mutex_init (pthread_mutex_t * mutex, const pthread_mutexattr_t * attr)
{
return __pthread_mutex_init (mutex, attr);
}
int
pthread_mutex_lock (pthread_mutex_t * mutex)
{
return __pthread_mutex_lock (mutex);
}
int
pthread_mutex_trylock (pthread_mutex_t * mutex)
{
return __pthread_mutex_trylock (mutex);
}
int
pthread_mutex_unlock (pthread_mutex_t * mutex)
{
return __pthread_mutex_unlock (mutex);
}
int
pthread_mutex_destroy (pthread_mutex_t * mutex)
{
return __pthread_mutex_destroy (mutex);
}
int
pthread_mutex_setprioceiling (pthread_mutex_t * mutex,
int prioceiling, int *old_ceiling)
{
return __pthread_mutex_setprioceiling (mutex, prioceiling, old_ceiling);
}
int
pthread_mutex_getprioceiling (const pthread_mutex_t * mutex, int *prioceiling)
{
return __pthread_mutex_getprioceiling (mutex, prioceiling);
}
int
pthread_mutexattr_destroy (pthread_mutexattr_t * attr)
{
return __pthread_mutexattr_destroy (attr);
}
int
pthread_mutexattr_getprioceiling (const pthread_mutexattr_t * attr,
int *prioceiling)
{
return __pthread_mutexattr_getprioceiling (attr, prioceiling);
}
int
pthread_mutexattr_getprotocol (const pthread_mutexattr_t * attr,
int *protocol)
{
return __pthread_mutexattr_getprotocol (attr, protocol);
}
int
pthread_mutexattr_getpshared (const pthread_mutexattr_t * attr, int *pshared)
{
return __pthread_mutexattr_getpshared (attr, pshared);
}
int
pthread_mutexattr_gettype (const pthread_mutexattr_t * attr, int *type)
{
return __pthread_mutexattr_gettype (attr, type);
}
int
pthread_mutexattr_init (pthread_mutexattr_t * attr)
{
return __pthread_mutexattr_init (attr);
}
int
pthread_mutexattr_setprioceiling (pthread_mutexattr_t * attr, int prioceiling)
{
return __pthread_mutexattr_setprioceiling (attr, prioceiling);
}
int
pthread_mutexattr_setprotocol (pthread_mutexattr_t * attr, int protocol)
{
return __pthread_mutexattr_setprotocol (attr, protocol);
}
int
pthread_mutexattr_setpshared (pthread_mutexattr_t * attr, int pshared)
{
return __pthread_mutexattr_setpshared (attr, pshared);
}
int
pthread_mutexattr_settype (pthread_mutexattr_t * attr, int type)
{
return __pthread_mutexattr_settype (attr, type);
}
/* Synchronisation */
int
pthread_cond_destroy (pthread_cond_t * cond)
{
return __pthread_cond_destroy (cond);
}
int
pthread_cond_init (pthread_cond_t * cond, const pthread_condattr_t * attr)
{
return __pthread_cond_init (cond, attr);
}
int
pthread_cond_signal (pthread_cond_t * cond)
{
return __pthread_cond_signal (cond);
}
int
pthread_cond_broadcast (pthread_cond_t * cond)
{
return __pthread_cond_broadcast (cond);
}
int
pthread_condattr_init (pthread_condattr_t * condattr)
{
return __pthread_condattr_init (condattr);
}
int
pthread_condattr_destroy (pthread_condattr_t * condattr)
{
return __pthread_condattr_destroy (condattr);
}
int
pthread_condattr_getpshared (const pthread_condattr_t * attr, int *pshared)
{
return __pthread_condattr_getpshared (attr, pshared);
}
int
pthread_condattr_setpshared (pthread_condattr_t * attr, int pshared)
{
return __pthread_condattr_setpshared (attr, pshared);
}
/* Scheduling */
int
pthread_getconcurrency (void)
{
return __pthread_getconcurrency ();
}
int
pthread_setconcurrency (int new_level)
{
return __pthread_setconcurrency (new_level);
}
int
pthread_getschedparam (pthread_t thread, int *policy,
struct sched_param *param)
{
return __pthread_getschedparam (thread, policy, param);
}
int
pthread_setschedparam (pthread_t thread, int policy,
const struct sched_param *param)
{
return __pthread_setschedparam (thread, policy, param);
}
/* 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 __sem_init (sem, pshared, value);
}
int
sem_destroy (sem_t * sem)
{
return __sem_destroy (sem);
}
int
sem_wait (sem_t * sem)
{
return __sem_wait (sem);
}
int
sem_trywait (sem_t * sem)
{
return __sem_trywait (sem);
}
int
sem_post (sem_t * sem)
{
return __sem_post (sem);
}
}