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7589569f13
1998-12-11 Sebastian Wilhelmi <wilhelmi@ira.uka.de> * gthread/gthread-nspr.c, configure.in: Added new default thread implementation on top of the mozilla nspr library. * gmem.c, gmessaged.c, gthread/gthread.c, gthread/gthread-*.c: Changed GStaticMutex and GStaticPrivate in gmem.c and gmessages.c into GMutex and GPrivate resp. to make error reporting and use of gmem possible in most (not all, though) gthread functions. Also initialized the modules via new init functions. * configure.in: Fixed syntax bug in definition of type GStaticMutex. * gthread/testgthread.c: Updated to work with nspr, but see note there for remaining problems.
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/* GLIB - Library of useful routines for C programming
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* gthread.c: thread related functions
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* Copyright 1998 Sebastian Wilhelmi; University of Karlsruhe
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* MT safe
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <glib.h>
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static const char *g_log_domain_gthread = "GThread";
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static gboolean thread_system_already_initialized = FALSE;
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#include G_THREAD_SOURCE
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void g_mutex_init (void);
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void g_mem_init (void);
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void g_messages_init (void);
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void
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g_thread_init(GThreadFunctions* init)
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{
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gboolean supported;
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if (thread_system_already_initialized)
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g_error ("the glib thread system may only be initialized once.");
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thread_system_already_initialized = TRUE;
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if (init == NULL)
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init = &g_thread_functions_for_glib_use_default;
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else
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g_thread_use_default_impl = FALSE;
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g_thread_functions_for_glib_use = *init;
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/* It is important, that g_thread_supported is not set before the
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thread initialization functions of the different modules are
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called */
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supported =
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init->mutex_new &&
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init->mutex_lock &&
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init->mutex_trylock &&
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init->mutex_unlock &&
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init->mutex_free &&
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init->cond_new &&
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init->cond_signal &&
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init->cond_broadcast &&
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init->cond_wait &&
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init->cond_timed_wait &&
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init->cond_free &&
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init->private_new &&
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init->private_get &&
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init->private_get;
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/* if somebody is calling g_thread_init (), it means that he wants to
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have thread support, so check this */
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if (!supported)
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{
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if (g_thread_use_default_impl)
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g_error ("Threads are not supported on this platform.");
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else
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g_error ("The supplied thread function vector is invalid.");
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}
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/* now call the thread initialization functions of the different
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glib modules. BTW: order does matter, g_mutex_init MUST be first */
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g_mutex_init ();
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g_mem_init ();
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g_messages_init ();
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/* now we can set g_thread_supported and thus enable all the thread
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functions */
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g_thread_supported = TRUE;
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}
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