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Diffstat (limited to 'Source/DirectFB/lib/direct/direct.c')
| -rwxr-xr-x | Source/DirectFB/lib/direct/direct.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/Source/DirectFB/lib/direct/direct.c b/Source/DirectFB/lib/direct/direct.c new file mode 100755 index 0000000..38b930f --- /dev/null +++ b/Source/DirectFB/lib/direct/direct.c @@ -0,0 +1,197 @@ +/* + (c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org) + (c) Copyright 2000-2004 Convergence (integrated media) GmbH + + All rights reserved. + + Written by Denis Oliver Kropp <dok@directfb.org>, + Andreas Hundt <andi@fischlustig.de>, + Sven Neumann <neo@directfb.org>, + Ville Syrjälä <syrjala@sci.fi> and + Claudio Ciccani <klan@users.sf.net>. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +#include <config.h> + +#include <stdlib.h> + +#include <pthread.h> + +#include <direct/debug.h> +#include <direct/direct.h> +#include <direct/interface.h> +#include <direct/list.h> +#include <direct/log.h> +#include <direct/mem.h> +#include <direct/signals.h> +#include <direct/thread.h> +#include <direct/util.h> + +D_DEBUG_DOMAIN( Direct_Main, "Direct/Main", "Initialization and shutdown of libdirect" ); + +/**************************************************************************************************/ + +struct __D_DirectCleanupHandler { + DirectLink link; + + int magic; + + DirectCleanupHandlerFunc func; + void *ctx; +}; + +/**************************************************************************************************/ + +static int refs = 0; +static DirectLink *handlers = NULL; +static pthread_mutex_t main_lock = PTHREAD_MUTEX_INITIALIZER; + +/**************************************************************************************************/ + +static void +direct_cleanup( void ) +{ + DirectCleanupHandler *handler, *temp; + + if (!refs) + return; + + direct_list_foreach_safe (handler, temp, handlers) { + D_DEBUG_AT( Direct_Main, "Calling cleanup func %p...\n", handler->func ); + + handler->func( handler->ctx ); + + /*direct_list_remove( &handlers, &handler->link ); + + D_MAGIC_CLEAR( handler ); + + D_FREE( handler );*/ + } + + direct_print_memleaks(); + + direct_print_interface_leaks(); +} + +/**************************************************************************************************/ + +DirectResult +direct_cleanup_handler_add( DirectCleanupHandlerFunc func, + void *ctx, + DirectCleanupHandler **ret_handler ) +{ + DirectCleanupHandler *handler; + + D_ASSERT( func != NULL ); + D_ASSERT( ret_handler != NULL ); + + D_DEBUG_AT( Direct_Main, + "Adding cleanup handler %p with context %p...\n", func, ctx ); + + handler = D_CALLOC( 1, sizeof(DirectCleanupHandler) ); + if (!handler) { + D_WARN( "out of memory" ); + return DR_NOLOCALMEMORY; + } + + handler->func = func; + handler->ctx = ctx; + + D_MAGIC_SET( handler, DirectCleanupHandler ); + + pthread_mutex_lock( &main_lock ); + + if (handlers == NULL) + atexit( direct_cleanup ); + + direct_list_append( &handlers, &handler->link ); + + pthread_mutex_unlock( &main_lock ); + + *ret_handler = handler; + + return DR_OK; +} + +DirectResult +direct_cleanup_handler_remove( DirectCleanupHandler *handler ) +{ + D_ASSERT( handler != NULL ); + + D_MAGIC_ASSERT( handler, DirectCleanupHandler ); + + D_DEBUG_AT( Direct_Main, "Removing cleanup handler %p with context %p...\n", + handler->func, handler->ctx ); + + pthread_mutex_lock( &main_lock ); + direct_list_remove( &handlers, &handler->link ); + pthread_mutex_unlock( &main_lock ); + + D_MAGIC_CLEAR( handler ); + + D_FREE( handler ); + + return DR_OK; +} + +DirectResult +direct_initialize( void ) +{ + pthread_mutex_lock( &main_lock ); + + D_DEBUG_AT( Direct_Main, "direct_initialize() called...\n" ); + + if (refs++) { + D_DEBUG_AT( Direct_Main, "...%d references now.\n", refs ); + pthread_mutex_unlock( &main_lock ); + return DR_OK; + } + else if (!direct_thread_self_name()) + direct_thread_set_name( "Main Thread" ); + + D_DEBUG_AT( Direct_Main, "...initializing now.\n" ); + + direct_signals_initialize(); + + pthread_mutex_unlock( &main_lock ); + + return DR_OK; +} + +DirectResult +direct_shutdown( void ) +{ + pthread_mutex_lock( &main_lock ); + + D_DEBUG_AT( Direct_Main, "direct_shutdown() called...\n" ); + + if (--refs) { + D_DEBUG_AT( Direct_Main, "...%d references left.\n", refs ); + pthread_mutex_unlock( &main_lock ); + return DR_OK; + } + + D_DEBUG_AT( Direct_Main, "...shutting down now.\n" ); + + direct_signals_shutdown(); + + pthread_mutex_unlock( &main_lock ); + + return DR_OK; +} + |