/* Compile this one with gcc. */
-/* Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
-GNU CC 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 General Public License for more details.
+GCC 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 General Public License
+for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
/* As a special exception, if you link this library with other files,
some of which are compiled with GCC, to produce an executable,
This exception does not however invalidate any other reasons why
the executable file might be covered by the GNU General Public License. */
-#ifndef __gthr_dce_h
-#define __gthr_dce_h
+#ifndef GCC_GTHR_DCE_H
+#define GCC_GTHR_DCE_H
+/* If _DCE_THREADS is not defined, then we're building the single
+ threaded version of the libraries and do not want to reference
+ anything related to pthreads or dce. */
+#ifndef _DCE_THREADS
+#include "gthr-single.h"
+#else
/* DCE threads interface.
DCE threads are based on POSIX threads draft 4, and many things
- have changed since then. */
+ have changed since then. */
#define __GTHREADS 1
#include <pthread.h>
+#ifdef __cplusplus
+#define UNUSED(x) x
+#else
+#define UNUSED(x) x __attribute__((unused))
+#endif
+
typedef pthread_key_t __gthread_key_t;
typedef pthread_once_t __gthread_once_t;
typedef pthread_mutex_t __gthread_mutex_t;
#define __GTHREAD_ONCE_INIT pthread_once_init
-/* Howto define __GTHREAD_MUTEX_INIT? */
+
+#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
+
+#define __GTHREAD_MUTEX_INIT_DEFAULT pthread_once_init
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
#pragma weak pthread_getspecific
#pragma weak pthread_setspecific
#pragma weak pthread_create
-
+#pragma weak pthread_mutex_init
#pragma weak pthread_mutex_lock
#pragma weak pthread_mutex_trylock
#pragma weak pthread_mutex_unlock
#ifdef _LIBOBJC
-/* Objective C. */
+/* Objective C. */
#pragma weak pthread_cond_broadcast
#pragma weak pthread_cond_destroy
#pragma weak pthread_cond_init
#pragma weak pthread_cond_wait
#pragma weak pthread_exit
#pragma weak pthread_getunique_np
-#pragma weak pthread_mutex_init
#pragma weak pthread_mutex_destroy
#pragma weak pthread_self
#pragma weak pthread_yield
#endif
-static void *__gthread_active_ptr = &pthread_create;
-
static inline int
__gthread_active_p (void)
{
+ static void *const __gthread_active_ptr = (void *) &pthread_create;
return __gthread_active_ptr != 0;
}
/* Backend initialization functions */
-/* Initialize the threads subsystem. */
+/* Initialize the threads subsystem. */
static inline int
__gthread_objc_init_thread_system(void)
{
return -1;
}
-/* Close the threads subsystem. */
+/* Close the threads subsystem. */
static inline int
__gthread_objc_close_thread_system(void)
{
/* Backend thread functions */
-/* Create a new thread of execution. */
+/* Create a new thread of execution. */
static inline objc_thread_t
__gthread_objc_thread_detach(void (*func)(void *), void *arg)
{
{
/* ??? May not work! (64bit) */
thread_id = *(objc_thread_t *)&new_thread_handle;
- pthread_detach(&new_thread_handle); /* Fully detach thread. */
+ pthread_detach(&new_thread_handle); /* Fully detach thread. */
}
else
thread_id = NULL;
return thread_id;
}
-/* Set the current thread's priority. */
+/* Set the current thread's priority. */
static inline int
__gthread_objc_thread_set_priority(int priority)
{
break;
}
- /* Change the priority. */
+ /* Change the priority. */
if (pthread_setprio(pthread_self(), sys_priority) >= 0)
return 0;
else
return -1;
}
-/* Return the current thread's priority. */
+/* Return the current thread's priority. */
static inline int
__gthread_objc_thread_get_priority(void)
{
return OBJC_THREAD_INTERACTIVE_PRIORITY;
}
-/* Yield our process time to another thread. */
+/* Yield our process time to another thread. */
static inline void
__gthread_objc_thread_yield(void)
{
pthread_yield();
}
-/* Terminate the current thread. */
+/* Terminate the current thread. */
static inline int
__gthread_objc_thread_exit(void)
{
return -1;
}
-/* Returns an integer value which uniquely describes a thread. */
+/* Returns an integer value which uniquely describes a thread. */
static inline objc_thread_t
__gthread_objc_thread_id(void)
{
return (objc_thread_t)1;
}
-/* Sets the thread's local storage pointer. */
+/* Sets the thread's local storage pointer. */
static inline int
__gthread_objc_thread_set_data(void *value)
{
}
}
-/* Returns the thread's local storage pointer. */
+/* Returns the thread's local storage pointer. */
static inline void *
__gthread_objc_thread_get_data(void)
{
/* Backend mutex functions */
-/* Allocate a mutex. */
+/* Allocate a mutex. */
static inline int
__gthread_objc_mutex_allocate(objc_mutex_t mutex)
{
return 0;
}
-/* Deallocate a mutex. */
+/* Deallocate a mutex. */
static inline int
__gthread_objc_mutex_deallocate(objc_mutex_t mutex)
{
return 0;
}
-/* Grab a lock on a mutex. */
+/* Grab a lock on a mutex. */
static inline int
__gthread_objc_mutex_lock(objc_mutex_t mutex)
{
return 0;
}
-/* Try to grab a lock on a mutex. */
+/* Try to grab a lock on a mutex. */
static inline int
__gthread_objc_mutex_trylock(objc_mutex_t mutex)
{
/* Backend condition mutex functions */
-/* Allocate a condition. */
+/* Allocate a condition. */
static inline int
__gthread_objc_condition_allocate(objc_condition_t condition)
{
if (__gthread_active_p ())
- /* Unimplemented. */
+ /* Unimplemented. */
return -1;
else
return 0;
}
-/* Deallocate a condition. */
+/* Deallocate a condition. */
static inline int
__gthread_objc_condition_deallocate(objc_condition_t condition)
{
if (__gthread_active_p ())
- /* Unimplemented. */
+ /* Unimplemented. */
return -1;
else
return 0;
__gthread_objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex)
{
if (__gthread_active_p ())
- /* Unimplemented. */
+ /* Unimplemented. */
return -1;
else
return 0;
}
-/* Wake up all threads waiting on this condition. */
+/* Wake up all threads waiting on this condition. */
static inline int
__gthread_objc_condition_broadcast(objc_condition_t condition)
{
if (__gthread_active_p ())
- /* Unimplemented. */
+ /* Unimplemented. */
return -1;
else
return 0;
}
-/* Wake up one thread waiting on this condition. */
+/* Wake up one thread waiting on this condition. */
static inline int
__gthread_objc_condition_signal(objc_condition_t condition)
{
if (__gthread_active_p ())
- /* Unimplemented. */
+ /* Unimplemented. */
return -1;
else
return 0;
}
static inline int
-__gthread_key_dtor (__gthread_key_t key, void *ptr)
+__gthread_key_dtor (UNUSED (__gthread_key_t key), UNUSED (void *ptr))
{
- /* Nothing needed. */
+ /* Nothing needed. */
return 0;
}
static inline int
-__gthread_key_delete (__gthread_key_t key)
+__gthread_key_delete (UNUSED (__gthread_key_t key))
{
- return pthread_key_delete (key);
+ /* Operation is not supported. */
+ return -1;
}
static inline void *
return pthread_setspecific (key, (void *) ptr);
}
+static inline void
+__gthread_mutex_init_function (__gthread_mutex_t *mutex)
+{
+ if (__gthread_active_p ())
+ pthread_mutex_init (mutex, pthread_mutexattr_default);
+}
+
static inline int
__gthread_mutex_lock (__gthread_mutex_t *mutex)
{
#endif /* _LIBOBJC */
-#endif /* not __gthr_dce_h */
+#undef UNUSED
+
+#endif
+#endif /* ! GCC_GTHR_DCE_H */
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