Generic communication interface between the wireless board (mote) and the sensor board. Any kind of sensor board can be connected to the mote using this specification given it provides a SPI peripheral, one input pin with interrupt capability and one digital output. The sensor board must implement a special register set from which all required information can be retrieved. Protocol: http://is.gd/wuQorh Github: http://is.gd/ySj1L9
pt/graham-pt.h@1:acdf490d94a7, 2014-04-08 (annotated)
- Committer:
- marcelobarrosalmeida
- Date:
- Tue Apr 08 16:34:20 2014 +0000
- Revision:
- 1:acdf490d94a7
Adding accel to sensor list
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| marcelobarrosalmeida | 1:acdf490d94a7 | 1 | /* |
| marcelobarrosalmeida | 1:acdf490d94a7 | 2 | * Copyright (c) 2004-2005, Swedish Institute of Computer Science. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 3 | * All rights reserved. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 4 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 5 | * Redistribution and use in source and binary forms, with or without |
| marcelobarrosalmeida | 1:acdf490d94a7 | 6 | * modification, are permitted provided that the following conditions |
| marcelobarrosalmeida | 1:acdf490d94a7 | 7 | * are met: |
| marcelobarrosalmeida | 1:acdf490d94a7 | 8 | * 1. Redistributions of source code must retain the above copyright |
| marcelobarrosalmeida | 1:acdf490d94a7 | 9 | * notice, this list of conditions and the following disclaimer. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| marcelobarrosalmeida | 1:acdf490d94a7 | 11 | * notice, this list of conditions and the following disclaimer in the |
| marcelobarrosalmeida | 1:acdf490d94a7 | 12 | * documentation and/or other materials provided with the distribution. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 13 | * 3. Neither the name of the Institute nor the names of its contributors |
| marcelobarrosalmeida | 1:acdf490d94a7 | 14 | * may be used to endorse or promote products derived from this software |
| marcelobarrosalmeida | 1:acdf490d94a7 | 15 | * without specific prior written permission. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 16 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 17 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND |
| marcelobarrosalmeida | 1:acdf490d94a7 | 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| marcelobarrosalmeida | 1:acdf490d94a7 | 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| marcelobarrosalmeida | 1:acdf490d94a7 | 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE |
| marcelobarrosalmeida | 1:acdf490d94a7 | 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| marcelobarrosalmeida | 1:acdf490d94a7 | 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| marcelobarrosalmeida | 1:acdf490d94a7 | 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| marcelobarrosalmeida | 1:acdf490d94a7 | 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| marcelobarrosalmeida | 1:acdf490d94a7 | 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| marcelobarrosalmeida | 1:acdf490d94a7 | 27 | * SUCH DAMAGE. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 28 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 29 | * This file is part of the Contiki operating system. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 30 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 31 | * Author: Adam Dunkels <adam@sics.se> |
| marcelobarrosalmeida | 1:acdf490d94a7 | 32 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 33 | * $Id: graham-pt.h,v 1.1 2005/10/04 08:30:05 adam Exp $ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 34 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 35 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 36 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 37 | * \addtogroup pt |
| marcelobarrosalmeida | 1:acdf490d94a7 | 38 | * @{ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 39 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 40 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 41 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 42 | * \file |
| marcelobarrosalmeida | 1:acdf490d94a7 | 43 | * Protothreads implementation. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 44 | * \author |
| marcelobarrosalmeida | 1:acdf490d94a7 | 45 | * Adam Dunkels <adam@sics.se> |
| marcelobarrosalmeida | 1:acdf490d94a7 | 46 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 47 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 48 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 49 | #ifndef __PT_H__ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 50 | #define __PT_H__ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 51 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 52 | #include "lc.h" |
| marcelobarrosalmeida | 1:acdf490d94a7 | 53 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 54 | struct pt { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 55 | lc_t lc; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 56 | }; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 57 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 58 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 59 | * Extended PT. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 60 | * This add's a flags field to the basic pt structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 61 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 62 | struct ptx { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 63 | lc_t lc; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 64 | unsigned short flags; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 65 | }; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 66 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 67 | #define PT_THREAD_WAITING 0 |
| marcelobarrosalmeida | 1:acdf490d94a7 | 68 | #define PT_THREAD_EXITED 1 |
| marcelobarrosalmeida | 1:acdf490d94a7 | 69 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 70 | /** Extended PT flag : thread is sleeping */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 71 | #define PT_F_SLEEPING 1 |
| marcelobarrosalmeida | 1:acdf490d94a7 | 72 | /** Extended PT flag : thread has been flagged to be killed (will exit on next block/wait/yield) */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 73 | #define PT_F_KILL 2 |
| marcelobarrosalmeida | 1:acdf490d94a7 | 74 | /** Extended PT flag : thread is waiting */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 75 | #define PT_F_WAITING 4 |
| marcelobarrosalmeida | 1:acdf490d94a7 | 76 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 77 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 78 | * Declaration of a protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 79 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 80 | * This macro is used to declare a protothread. All protothreads must |
| marcelobarrosalmeida | 1:acdf490d94a7 | 81 | * be declared with this macro. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 82 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 83 | * Example: |
| marcelobarrosalmeida | 1:acdf490d94a7 | 84 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 85 | PT_THREAD(consumer(struct pt *p, int event)) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 86 | PT_BEGIN(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 87 | while(1) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 88 | PT_WAIT_UNTIL(p, event == AVAILABLE); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 89 | consume(); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 90 | PT_WAIT_UNTIL(p, event == CONSUMED); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 91 | acknowledge_consumed(); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 92 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 93 | PT_END(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 94 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 95 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 96 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 97 | * \param name_args The name and arguments of the C function |
| marcelobarrosalmeida | 1:acdf490d94a7 | 98 | * implementing the protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 99 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 100 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 101 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 102 | #define PT_THREAD(name_args) char name_args |
| marcelobarrosalmeida | 1:acdf490d94a7 | 103 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 104 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 105 | * Initialize a protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 106 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 107 | * Initializes a protothread. Initialization must be done prior to |
| marcelobarrosalmeida | 1:acdf490d94a7 | 108 | * starting to execute the protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 109 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 110 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 111 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 112 | * Example: |
| marcelobarrosalmeida | 1:acdf490d94a7 | 113 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 114 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 115 | void main(void) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 116 | struct pt p; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 117 | int event; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 118 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 119 | PT_INIT(&p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 120 | while(PT_SCHEDULE(consumer(&p, event))) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 121 | event = get_event(); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 122 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 123 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 124 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 125 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 126 | * \sa PT_SPAWN() |
| marcelobarrosalmeida | 1:acdf490d94a7 | 127 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 128 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 129 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 130 | #define PT_INIT(pt) LC_INIT((pt)->lc) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 131 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 132 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 133 | * Declare the start of a protothread inside the C function |
| marcelobarrosalmeida | 1:acdf490d94a7 | 134 | * implementing the protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 135 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 136 | * This macro is used to declare the starting point of a |
| marcelobarrosalmeida | 1:acdf490d94a7 | 137 | * protothread. It should be placed at the start of the function in |
| marcelobarrosalmeida | 1:acdf490d94a7 | 138 | * which the protothread runs. All C statements above the PT_BEGIN() |
| marcelobarrosalmeida | 1:acdf490d94a7 | 139 | * invokation will be executed each time the protothread is scheduled. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 140 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 141 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 142 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 143 | * Example: |
| marcelobarrosalmeida | 1:acdf490d94a7 | 144 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 145 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 146 | PT_THREAD(producer(struct pt *p, int event)) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 147 | PT_BEGIN(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 148 | while(1) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 149 | PT_WAIT_UNTIL(p, event == CONSUMED || event == DROPPED); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 150 | produce(); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 151 | PT_WAIT_UNTIL(p, event == PRODUCED); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 152 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 153 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 154 | PT_END(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 155 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 156 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 157 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 158 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 159 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 160 | #define PT_BEGIN(pt) LC_RESUME((pt)->lc) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 161 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 162 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 163 | * Block and wait until condition is true. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 164 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 165 | * This macro blocks the protothread until the specified condition is |
| marcelobarrosalmeida | 1:acdf490d94a7 | 166 | * true. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 167 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 168 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 169 | * \param condition The condition. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 170 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 171 | * Example: |
| marcelobarrosalmeida | 1:acdf490d94a7 | 172 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 173 | PT_THREAD(seconds(struct pt *p)) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 174 | PT_BEGIN(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 175 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 176 | PT_WAIT_UNTIL(p, time >= 2 * SECOND); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 177 | printf("Two seconds have passed\n"); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 178 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 179 | PT_END(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 180 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 181 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 182 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 183 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 184 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 185 | #define PT_WAIT_UNTIL(pt, condition) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 186 | do { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 187 | LC_SET((pt)->lc); \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 188 | if(sizeof(*(pt))==sizeof(struct ptx)) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 189 | { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 190 | if(((struct ptx*)(pt))->flags&PT_F_KILL) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 191 | { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 192 | PT_INIT(pt); \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 193 | return PT_THREAD_EXITED; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 194 | } \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 195 | if(condition) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 196 | ((struct ptx*)(pt))->flags&=PT_F_WAITING; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 197 | else \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 198 | ((struct ptx*)(pt))->flags|=PT_F_WAITING; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 199 | if(((struct ptx*)(pt))->flags&PT_F_WAITING) { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 200 | return PT_THREAD_WAITING; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 201 | } \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 202 | }else{ \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 203 | if(!(condition)) { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 204 | return PT_THREAD_WAITING; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 205 | } \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 206 | } \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 207 | } while(0) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 208 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 209 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 210 | * Block and wait while condition is true. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 211 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 212 | * This function blocks and waits while condition is true. See |
| marcelobarrosalmeida | 1:acdf490d94a7 | 213 | * PT_WAIT_UNTIL(). |
| marcelobarrosalmeida | 1:acdf490d94a7 | 214 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 215 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 216 | * \param cond The condition. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 217 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 218 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 219 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 220 | #define PT_WAIT_WHILE(pt, cond) PT_WAIT_UNTIL((pt), !(cond)) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 221 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 222 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 223 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 224 | * Block and wait until a child protothread completes. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 225 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 226 | * This macro schedules a child protothread. The current protothread |
| marcelobarrosalmeida | 1:acdf490d94a7 | 227 | * will block until the child protothread completes. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 228 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 229 | * \note The child protothread must be manually initialized with the |
| marcelobarrosalmeida | 1:acdf490d94a7 | 230 | * PT_INIT() function before this function is used. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 231 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 232 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 233 | * \param thread The child protothread with arguments |
| marcelobarrosalmeida | 1:acdf490d94a7 | 234 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 235 | * Example: |
| marcelobarrosalmeida | 1:acdf490d94a7 | 236 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 237 | PT_THREAD(child(struct pt *p, int event)) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 238 | PT_BEGIN(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 239 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 240 | PT_WAIT_UNTIL(p, event == EVENT1); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 241 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 242 | PT_END(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 243 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 244 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 245 | PT_THREAD(parent(struct pt *p, struct pt *child_pt, int event)) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 246 | PT_BEGIN(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 247 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 248 | PT_INIT(child_pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 249 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 250 | PT_WAIT_THREAD(p, child(child_pt, event)); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 251 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 252 | PT_END(p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 253 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 254 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 255 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 256 | * \sa PT_SPAWN() |
| marcelobarrosalmeida | 1:acdf490d94a7 | 257 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 258 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 259 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 260 | #define PT_WAIT_THREAD(pt, thread) PT_WAIT_WHILE((pt), PT_SCHEDULE(thread)) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 261 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 262 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 263 | * Spawn a child protothread and wait until it exits. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 264 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 265 | * This macro spawns a child protothread and waits until it exits. The |
| marcelobarrosalmeida | 1:acdf490d94a7 | 266 | * macro can only be used within a protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 267 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 268 | * Example: |
| marcelobarrosalmeida | 1:acdf490d94a7 | 269 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 270 | static struct pt parent_pt, child_pt; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 271 | int should_spawn_flag; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 272 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 273 | PT_THREAD(child(struct pt *pt)) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 274 | PT_BEGIN(pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 275 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 276 | while(all_items_processed()) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 277 | process_item(); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 278 | PT_WAIT_UNTIL(pt, item_processed()); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 279 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 280 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 281 | PT_END(pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 282 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 283 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 284 | PT_THREAD(parent(void)) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 285 | PT_BEGIN(&parent_pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 286 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 287 | if(should_spawn_flag) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 288 | PT_SPAWN(&parent_pt, &child_pt, child(&child_pt)); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 289 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 290 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 291 | PT_END(&parent_pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 292 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 293 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 294 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 295 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 296 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 297 | * \param child A pointer to the child protothread's control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 298 | * \param thread The child protothread with arguments |
| marcelobarrosalmeida | 1:acdf490d94a7 | 299 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 300 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 301 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 302 | #define PT_SPAWN(pt, child, thread) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 303 | do { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 304 | PT_INIT((child)); \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 305 | PT_WAIT_THREAD((pt), (thread)); \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 306 | } while(0) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 307 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 308 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 309 | * Restart the protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 310 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 311 | * This macro will block and cause the running protothread to restart |
| marcelobarrosalmeida | 1:acdf490d94a7 | 312 | * its execution at the place of the PT_BEGIN() call. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 313 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 314 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 315 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 316 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 317 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 318 | #define PT_RESTART(pt) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 319 | do { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 320 | PT_INIT(pt); \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 321 | return PT_THREAD_WAITING; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 322 | } while(0) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 323 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 324 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 325 | * Exit the protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 326 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 327 | * This macro causes the protothread to exit. If the protothread was |
| marcelobarrosalmeida | 1:acdf490d94a7 | 328 | * spawned by another protothread, the parent protothread will become |
| marcelobarrosalmeida | 1:acdf490d94a7 | 329 | * unblocked and can continue to run. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 330 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 331 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 332 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 333 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 334 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 335 | #define PT_EXIT(pt) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 336 | do { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 337 | PT_INIT(pt); \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 338 | return PT_THREAD_EXITED; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 339 | } while(0) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 340 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 341 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 342 | * Declare the end of a protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 343 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 344 | * This macro is used for declaring that a protothread ends. It should |
| marcelobarrosalmeida | 1:acdf490d94a7 | 345 | * always be used together with a matching PT_BEGIN() macro. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 346 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 347 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 348 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 349 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 350 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 351 | #define PT_END(pt) LC_END((pt)->lc); PT_EXIT(pt) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 352 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 353 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 354 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 355 | * Schedule a protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 356 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 357 | * This function shedules a protothread. The return value of the |
| marcelobarrosalmeida | 1:acdf490d94a7 | 358 | * function is non-zero if the protothread is running or zero if the |
| marcelobarrosalmeida | 1:acdf490d94a7 | 359 | * protothread has exited. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 360 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 361 | * Example |
| marcelobarrosalmeida | 1:acdf490d94a7 | 362 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 363 | void main(void) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 364 | struct pt p; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 365 | int event; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 366 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 367 | PT_INIT(&p); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 368 | while(PT_SCHEDULE(consumer(&p, event))) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 369 | event = get_event(); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 370 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 371 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 372 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 373 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 374 | * \param f The call to the C function implementing the protothread to |
| marcelobarrosalmeida | 1:acdf490d94a7 | 375 | * be scheduled |
| marcelobarrosalmeida | 1:acdf490d94a7 | 376 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 377 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 378 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 379 | #define PT_SCHEDULE(f) (f == PT_THREAD_WAITING) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 380 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 381 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 382 | * Declarare that a protothread can yield. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 383 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 384 | * If a protothread should be able to yield with the PT_YIELD() |
| marcelobarrosalmeida | 1:acdf490d94a7 | 385 | * statement, this flag must be placed first in the protothread's |
| marcelobarrosalmeida | 1:acdf490d94a7 | 386 | * function body. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 387 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 388 | * Example: |
| marcelobarrosalmeida | 1:acdf490d94a7 | 389 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 390 | static |
| marcelobarrosalmeida | 1:acdf490d94a7 | 391 | PT_THREAD(loop_thread(struct pt *pt)) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 392 | { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 393 | PT_YIELDING(); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 394 | static int i; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 395 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 396 | PT_BEGIN(pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 397 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 398 | for(i = 0; i < 200; ++i) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 399 | handle_item(i); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 400 | PT_YIELD(pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 401 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 402 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 403 | PT_END(pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 404 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 405 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 406 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 407 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 408 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 409 | #define PT_YIELDING() char pt_yielded = 1 |
| marcelobarrosalmeida | 1:acdf490d94a7 | 410 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 411 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 412 | * Yield from the current protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 413 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 414 | * This function will yield the protothread, thereby allowing other |
| marcelobarrosalmeida | 1:acdf490d94a7 | 415 | * processing to take place in the system. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 416 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 417 | * \note The PT_YIELDING() flag must be placed first in the |
| marcelobarrosalmeida | 1:acdf490d94a7 | 418 | * protothread's body if the PT_YIELD() function should be used. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 419 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 420 | * Example |
| marcelobarrosalmeida | 1:acdf490d94a7 | 421 | \code |
| marcelobarrosalmeida | 1:acdf490d94a7 | 422 | static |
| marcelobarrosalmeida | 1:acdf490d94a7 | 423 | PT_THREAD(fade(struct pt *pt)) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 424 | { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 425 | PT_YIELDING(); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 426 | static int delay; |
| marcelobarrosalmeida | 1:acdf490d94a7 | 427 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 428 | PT_BEGIN(pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 429 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 430 | for(delay = 3980; delay > 20; delay -= 20) { |
| marcelobarrosalmeida | 1:acdf490d94a7 | 431 | leds_red(LEDS_ON); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 432 | clock_delay(4000 - delay); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 433 | leds_red(LEDS_OFF); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 434 | clock_delay(delay); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 435 | PT_YIELD(pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 436 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 437 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 438 | PT_END(pt); |
| marcelobarrosalmeida | 1:acdf490d94a7 | 439 | } |
| marcelobarrosalmeida | 1:acdf490d94a7 | 440 | \endcode |
| marcelobarrosalmeida | 1:acdf490d94a7 | 441 | * \param pt A pointer to the protothread control structure. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 442 | * |
| marcelobarrosalmeida | 1:acdf490d94a7 | 443 | * \hideinitializer |
| marcelobarrosalmeida | 1:acdf490d94a7 | 444 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 445 | #define PT_YIELD(pt) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 446 | do { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 447 | pt_yielded = 0; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 448 | PT_WAIT_UNTIL(pt, pt_yielded); \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 449 | } while(0) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 450 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 451 | /* |
| marcelobarrosalmeida | 1:acdf490d94a7 | 452 | * Extended Protothread API. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 453 | * The following functions require a struct ptx, rather than a plan struct pt. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 454 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 455 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 456 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 457 | * Put a protothread to sleep. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 458 | * Execution of the thread won't continue until another thread explicitly wakes the thread |
| marcelobarrosalmeida | 1:acdf490d94a7 | 459 | * with PT_WAKE(). |
| marcelobarrosalmeida | 1:acdf490d94a7 | 460 | * Requires a ptx. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 461 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 462 | #define PT_SLEEP(ptx) \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 463 | do { \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 464 | ptx->flags|=PT_F_SLEEPING; \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 465 | PT_WAIT_UNTIL(ptx, (((ptx)->flags&PT_F_SLEEPING)==0)); \ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 466 | } while(0) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 467 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 468 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 469 | * Wake a protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 470 | * Wake up a protothread if it is sleeping (ie. has called PT_SLEEP()) - if the thread isn't sleeping, |
| marcelobarrosalmeida | 1:acdf490d94a7 | 471 | * then it has no effect. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 472 | * NOTE: Requires a ptx. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 473 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 474 | #define PT_WAKE(ptx) (ptx)->flags&=~PT_F_SLEEPING |
| marcelobarrosalmeida | 1:acdf490d94a7 | 475 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 476 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 477 | * Kill a protothread. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 478 | * The thread is marked with the kill flag and will exit next time the thread sleeps/waits/yields. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 479 | * NOTE: Requires a ptx. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 480 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 481 | #define PT_KILL(ptx) (ptx)->flags&=~PT_F_KILL |
| marcelobarrosalmeida | 1:acdf490d94a7 | 482 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 483 | /** |
| marcelobarrosalmeida | 1:acdf490d94a7 | 484 | * Is a protothread blocked? |
| marcelobarrosalmeida | 1:acdf490d94a7 | 485 | * Returns non-zero is the thread is waiting. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 486 | * NOTE: Requires a ptx. |
| marcelobarrosalmeida | 1:acdf490d94a7 | 487 | */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 488 | #define PT_ISBLOCKED(ptx) ((ptx)->flags&PT_F_WAITING) |
| marcelobarrosalmeida | 1:acdf490d94a7 | 489 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 490 | #endif /* __PT_H__ */ |
| marcelobarrosalmeida | 1:acdf490d94a7 | 491 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 492 | |
| marcelobarrosalmeida | 1:acdf490d94a7 | 493 | /** @} */ |