X-Git-Url: http://vcs.maemo.org/git/?a=blobdiff_plain;f=src%2Ftimed_thread.h;h=cc4adcd287ab5725f5460bc09fb9b9091b8e2c21;hb=bc39f1d6d7fe09a0449b785394e33d31a888dd00;hp=83eafd30d792d31dc77fe67b1179265922bf1566;hpb=eec3c9210babf36f3ea4e116ecce07cd948e2ef1;p=monky diff --git a/src/timed_thread.h b/src/timed_thread.h index 83eafd3..cc4adcd 100644 --- a/src/timed_thread.h +++ b/src/timed_thread.h @@ -1,37 +1,69 @@ -/* $Id $ */ - -/* timed_thread.h - * Author: Philip Kovacs +/* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*- + * + * timed_thread.h: Abstraction layer for timed threads + * + * Copyright (C) 2006-2007 Philip Kovacs pkovacs@users.sourceforge.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 2.1 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. * - * Abstraction layer for timed threads - * */ + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 + * USA. */ +#ifndef _TIMED_THREAD_H_ +#define _TIMED_THREAD_H_ -#define MINIMUM_INTERVAL_USECS 50000 /* 50000 microseconds = 50 ms = 0.05 sec */ +#include + +/* 10000 microseconds = 10 ms = 0.01 sec */ +#define MINIMUM_INTERVAL_USECS 10000 /* opaque structure for clients */ typedef struct _timed_thread timed_thread; -/* create a timed thread */ -timed_thread* timed_thread_create (void *(*start_routine)(void*), void *arg, unsigned int interval_ms); +/* create a timed thread (object creation only) */ +timed_thread *timed_thread_create(void *start_routine(void *), void *arg, + unsigned int interval_usecs); + +/* run a timed thread (drop the thread and run it) */ +int timed_thread_run(timed_thread *p_timed_thread); /* destroy a timed thread */ -void timed_thread_destroy (timed_thread* p_timed_thread, timed_thread** addr_of_p_timed_thread); +void timed_thread_destroy(timed_thread *p_timed_thread, + timed_thread **addr_of_p_timed_thread); /* lock a timed thread for critical section activity */ -int timed_thread_lock (timed_thread* p_timed_thread); +int timed_thread_lock(timed_thread *p_timed_thread); /* unlock a timed thread after critical section activity */ -int timed_thread_unlock (timed_thread* p_timed_thread); +int timed_thread_unlock(timed_thread *p_timed_thread); -/* waits required interval for termination signal and returns 1 if got it, 0 otherwise */ -int timed_thread_test (timed_thread* p_timed_thread); +/* waits required interval (unless override_wait_time is non-zero) for + * termination signal returns 1 if received, 0 otherwise. should also return 1 + * if the thread has been asked kindly to die. */ +int timed_thread_test(timed_thread *p_timed_thread, int override_wait_time); /* exit a timed thread */ -void timed_thread_exit (timed_thread* p_timed_thread); +void timed_thread_exit(timed_thread *p_timed_thread) __attribute__((noreturn)); -/* register a timed thread for future destruction */ -int timed_thread_register (timed_thread* p_timed_thread, timed_thread** addr_of_p_timed_thread); +/* register a timed thread for future destruction via + * timed_thread_destroy_registered_threads() */ +int timed_thread_register(timed_thread *p_timed_thread, + timed_thread **addr_of_p_timed_thread); /* destroy all registered timed threads */ -void timed_thread_destroy_registered_threads (void); +void timed_thread_destroy_registered_threads(void); + +/* returns read file descriptor for thread pipe */ +int timed_thread_readfd(timed_thread *p_timed_thread); + +#endif /* #ifdef _TIMED_THREAD_H_ */