00001 #ifndef _SYS_THREAD_H_ 00002 #define _SYS_THREAD_H_ 00003 00004 /* 00005 * Copyright (C) 2001-2006 by egnite Software GmbH. All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * 1. Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 2. Redistributions in binary form must reproduce the above copyright 00014 * notice, this list of conditions and the following disclaimer in the 00015 * documentation and/or other materials provided with the distribution. 00016 * 3. Neither the name of the copyright holders nor the names of 00017 * contributors may be used to endorse or promote products derived 00018 * from this software without specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS 00021 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00022 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00023 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE 00024 * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00025 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00026 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 00027 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 00028 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00029 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 00030 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00031 * SUCH DAMAGE. 00032 * 00033 * For additional information see http://www.ethernut.de/ 00034 * 00035 * - 00036 * Portions Copyright (C) 2000 David J. Hudson <dave@humbug.demon.co.uk> 00037 * 00038 * This file is distributed in the hope that it will be useful, but WITHOUT 00039 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00040 * FITNESS FOR A PARTICULAR PURPOSE. 00041 * 00042 * You can redistribute this file and/or modify it under the terms of the GNU 00043 * General Public License (GPL) as published by the Free Software Foundation; 00044 * either version 2 of the License, or (at your discretion) any later version. 00045 * See the accompanying file "copying-gpl.txt" for more details. 00046 * 00047 * As a special exception to the GPL, permission is granted for additional 00048 * uses of the text contained in this file. See the accompanying file 00049 * "copying-liquorice.txt" for details. 00050 */ 00051 00128 #include <sys/types.h> 00129 #include <cfg/memory.h> 00130 00131 #define DEADBEEF 0xDEADBEEF 00132 00133 00138 00142 typedef struct _NUTTHREADINFO NUTTHREADINFO; 00143 00151 struct _NUTTHREADINFO { 00152 NUTTHREADINFO *td_next; 00153 NUTTHREADINFO *td_qnxt; 00154 volatile u_int td_qpec; 00155 char td_name[9]; 00156 u_char td_state; 00157 uptr_t td_sp; 00158 u_char td_priority; 00159 u_char *td_memory; 00160 HANDLE td_timer; 00161 volatile HANDLE td_queue; 00162 #if defined (__APPLE__) || defined(__linux__) || defined(__CYGWIN__) 00163 pthread_t td_pthread; 00164 void (*td_fn) (void *); 00165 void *td_arg; 00166 pthread_cond_t td_cv; 00167 u_short td_cs_level; 00168 #endif 00169 }; 00176 #define TDS_TERM 0 00177 #define TDS_RUNNING 1 00178 #define TDS_READY 2 00179 #define TDS_SLEEP 3 00181 00182 #define SLEEP_MODE_NONE 0xff 00183 00184 extern NUTTHREADINFO *runningThread; 00185 extern NUTTHREADINFO *nutThreadList; 00186 extern NUTTHREADINFO *runQueue; 00187 00188 __BEGIN_DECLS 00189 /* Function prototypes. */ 00190 #if defined (__APPLE__) || defined(__linux__) || defined(__CYGWIN__) 00191 extern void NutThreadInit(void); 00192 #endif 00193 00194 #if defined(__GNUC__) && defined (__AVR_ENHANCED__) 00195 extern u_char NutThreadSetSleepMode(u_char mode); 00196 #endif 00197 00198 extern HANDLE NutThreadCreate(char *name, void (*fn) (void *), void *arg, size_t stackSize); 00199 extern u_char NutThreadSetPriority(u_char level); 00200 00201 extern void NutThreadKill(void); 00202 extern void NutThreadDestroy(void); 00203 extern void NutThreadExit(void); 00204 00205 extern void NutThreadResume(void); 00206 extern void NutThreadWake(HANDLE timer, HANDLE th); 00207 extern void NutThreadYield(void); 00208 00209 extern void NutThreadAddPriQueue(NUTTHREADINFO * td, NUTTHREADINFO * volatile *tqpp); 00210 extern void NutThreadRemoveQueue(NUTTHREADINFO * td, NUTTHREADINFO * volatile *tqpp); 00211 00212 extern void NutThreadSwitch(void); 00213 extern HANDLE GetThreadByName(char *name); 00214 00218 #define THREAD(threadfn, arg) \ 00219 void threadfn(void *arg) __attribute__ ((noreturn)); \ 00220 void threadfn(void *arg) 00221 00222 __END_DECLS 00223 /* */ 00224 #endif