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Diffstat (limited to 'Source/DirectFB/lib/direct/thread.h')
| -rwxr-xr-x | Source/DirectFB/lib/direct/thread.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/Source/DirectFB/lib/direct/thread.h b/Source/DirectFB/lib/direct/thread.h new file mode 100755 index 0000000..18205c4 --- /dev/null +++ b/Source/DirectFB/lib/direct/thread.h @@ -0,0 +1,168 @@ +/* + (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. +*/ + +#ifndef __DIRECT__THREAD_H__ +#define __DIRECT__THREAD_H__ + +#include <sys/types.h> + +#include <direct/types.h> +#include <direct/conf.h> + +typedef enum { + DTT_DEFAULT = 0, + DTT_CLEANUP = -5, + DTT_INPUT = -10, + DTT_OUTPUT = -12, + DTT_MESSAGING = -15, + DTT_CRITICAL = -20 +} DirectThreadType; + +typedef void * (*DirectThreadMainFunc)( DirectThread *thread, void *arg ); + +typedef void (*DirectThreadInitFunc)( DirectThread *thread, void *arg ); + + +/* + * Add a handler being called at the beginning of new threads. + */ +DirectThreadInitHandler *direct_thread_add_init_handler ( DirectThreadInitFunc func, + void *arg ); + +/* + * Remove the specified handler. + */ +void direct_thread_remove_init_handler( DirectThreadInitHandler *handler ); + +/* + * Create a new thread and start it. + * The thread type is relevant for the scheduling priority. + */ +DirectThread *direct_thread_create ( DirectThreadType thread_type, + DirectThreadMainFunc thread_main, + void *arg, + const char *name ); + +/* + * Returns the thread of the caller. + */ +DirectThread *direct_thread_self ( void ); + +/* + * Returns the name of the specified thread. + */ +const char *direct_thread_get_name ( DirectThread *thread ); + +/* + * Returns the thread ID of the specified thread. + */ +pid_t direct_thread_get_tid ( DirectThread *thread ); + +/* + * Returns the name of the calling thread. + */ +const char *direct_thread_self_name ( void ); + +/* + * Changes the name of the calling thread. + */ +void direct_thread_set_name ( const char *name ); + +/* + * Wait on the thread object to be notified via direct_thread_notify(). + */ +DirectResult direct_thread_wait ( DirectThread *thread, + int timeout_ms ); + +/* + * Notify the thread object waking up callers of direct_thread_wait(). + */ +void direct_thread_notify ( DirectThread *thread ); + +void direct_thread_lock ( DirectThread *thread ); +void direct_thread_unlock ( DirectThread *thread ); + +/* + * Kindly ask the thread to terminate (for joining without thread cancellation). + */ +void direct_thread_terminate ( DirectThread *thread ); + +/* + * Cancel a running thread. + */ +void direct_thread_cancel ( DirectThread *thread ); + +/* + * Returns true if the specified thread has been canceled. + */ +bool direct_thread_is_canceled( DirectThread *thread ); + +/* + * Detach a thread. + */ +void direct_thread_detach ( DirectThread *thread ); + +/* + * Returns true if the specified thread has been detached. + */ +bool direct_thread_is_detached( DirectThread *thread ); + +/* + * Check if the calling thread is canceled. + * Must not be called by other threads than 'thread'. + * This function won't return if the thread is canceled. + */ +void direct_thread_testcancel ( DirectThread *thread ); + +/* + * Wait until a running thread is terminated. + */ +void direct_thread_join ( DirectThread *thread ); + +/* + * Returns true if the specified thread has been join. + */ +bool direct_thread_is_joined ( DirectThread *thread ); + +/* + * Free resources allocated by direct_thread_create. + * If the thread is still running it will be killed. + */ +void direct_thread_destroy ( DirectThread *thread ); + +/* + * Utilities for stringification. + */ +#if DIRECT_BUILD_TEXT +const char *direct_thread_type_name ( DirectThreadType type ); +const char *direct_thread_scheduler_name( DirectConfigThreadScheduler scheduler ); +const char *direct_thread_policy_name ( int policy ); +#endif + +#endif + |