ban4jp -
/
uIP-1-0_webserver
uIP 1.0 based webserver for LPC1114 + ENC28J60
uip/pt.h@3:a2715e9c7737, 2014-06-30 (annotated)
- Committer:
- ban4jp
- Date:
- Mon Jun 30 16:00:08 2014 +0000
- Revision:
- 3:a2715e9c7737
- Parent:
- 0:685224d2f66d
backported from Contiki 2.7
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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ban4jp | 0:685224d2f66d | 1 | /* |
ban4jp | 0:685224d2f66d | 2 | * Copyright (c) 2004-2005, Swedish Institute of Computer Science. |
ban4jp | 0:685224d2f66d | 3 | * All rights reserved. |
ban4jp | 0:685224d2f66d | 4 | * |
ban4jp | 0:685224d2f66d | 5 | * Redistribution and use in source and binary forms, with or without |
ban4jp | 0:685224d2f66d | 6 | * modification, are permitted provided that the following conditions |
ban4jp | 0:685224d2f66d | 7 | * are met: |
ban4jp | 0:685224d2f66d | 8 | * 1. Redistributions of source code must retain the above copyright |
ban4jp | 0:685224d2f66d | 9 | * notice, this list of conditions and the following disclaimer. |
ban4jp | 0:685224d2f66d | 10 | * 2. Redistributions in binary form must reproduce the above copyright |
ban4jp | 0:685224d2f66d | 11 | * notice, this list of conditions and the following disclaimer in the |
ban4jp | 0:685224d2f66d | 12 | * documentation and/or other materials provided with the distribution. |
ban4jp | 0:685224d2f66d | 13 | * 3. Neither the name of the Institute nor the names of its contributors |
ban4jp | 0:685224d2f66d | 14 | * may be used to endorse or promote products derived from this software |
ban4jp | 0:685224d2f66d | 15 | * without specific prior written permission. |
ban4jp | 0:685224d2f66d | 16 | * |
ban4jp | 0:685224d2f66d | 17 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND |
ban4jp | 0:685224d2f66d | 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
ban4jp | 0:685224d2f66d | 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
ban4jp | 0:685224d2f66d | 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE |
ban4jp | 0:685224d2f66d | 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
ban4jp | 0:685224d2f66d | 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
ban4jp | 0:685224d2f66d | 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
ban4jp | 0:685224d2f66d | 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
ban4jp | 0:685224d2f66d | 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
ban4jp | 0:685224d2f66d | 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
ban4jp | 0:685224d2f66d | 27 | * SUCH DAMAGE. |
ban4jp | 0:685224d2f66d | 28 | * |
ban4jp | 3:a2715e9c7737 | 29 | * This file is part of the Contiki operating system. |
ban4jp | 0:685224d2f66d | 30 | * |
ban4jp | 0:685224d2f66d | 31 | * Author: Adam Dunkels <adam@sics.se> |
ban4jp | 0:685224d2f66d | 32 | * |
ban4jp | 0:685224d2f66d | 33 | */ |
ban4jp | 0:685224d2f66d | 34 | |
ban4jp | 0:685224d2f66d | 35 | /** |
ban4jp | 0:685224d2f66d | 36 | * \addtogroup pt |
ban4jp | 0:685224d2f66d | 37 | * @{ |
ban4jp | 0:685224d2f66d | 38 | */ |
ban4jp | 0:685224d2f66d | 39 | |
ban4jp | 0:685224d2f66d | 40 | /** |
ban4jp | 0:685224d2f66d | 41 | * \file |
ban4jp | 0:685224d2f66d | 42 | * Protothreads implementation. |
ban4jp | 0:685224d2f66d | 43 | * \author |
ban4jp | 0:685224d2f66d | 44 | * Adam Dunkels <adam@sics.se> |
ban4jp | 0:685224d2f66d | 45 | * |
ban4jp | 0:685224d2f66d | 46 | */ |
ban4jp | 0:685224d2f66d | 47 | |
ban4jp | 0:685224d2f66d | 48 | #ifndef __PT_H__ |
ban4jp | 0:685224d2f66d | 49 | #define __PT_H__ |
ban4jp | 0:685224d2f66d | 50 | |
ban4jp | 0:685224d2f66d | 51 | #include "lc.h" |
ban4jp | 0:685224d2f66d | 52 | |
ban4jp | 0:685224d2f66d | 53 | struct pt { |
ban4jp | 0:685224d2f66d | 54 | lc_t lc; |
ban4jp | 0:685224d2f66d | 55 | }; |
ban4jp | 0:685224d2f66d | 56 | |
ban4jp | 0:685224d2f66d | 57 | #define PT_WAITING 0 |
ban4jp | 3:a2715e9c7737 | 58 | #define PT_YIELDED 1 |
ban4jp | 3:a2715e9c7737 | 59 | #define PT_EXITED 2 |
ban4jp | 3:a2715e9c7737 | 60 | #define PT_ENDED 3 |
ban4jp | 0:685224d2f66d | 61 | |
ban4jp | 0:685224d2f66d | 62 | /** |
ban4jp | 0:685224d2f66d | 63 | * \name Initialization |
ban4jp | 0:685224d2f66d | 64 | * @{ |
ban4jp | 0:685224d2f66d | 65 | */ |
ban4jp | 0:685224d2f66d | 66 | |
ban4jp | 0:685224d2f66d | 67 | /** |
ban4jp | 0:685224d2f66d | 68 | * Initialize a protothread. |
ban4jp | 0:685224d2f66d | 69 | * |
ban4jp | 0:685224d2f66d | 70 | * Initializes a protothread. Initialization must be done prior to |
ban4jp | 0:685224d2f66d | 71 | * starting to execute the protothread. |
ban4jp | 0:685224d2f66d | 72 | * |
ban4jp | 0:685224d2f66d | 73 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 74 | * |
ban4jp | 0:685224d2f66d | 75 | * \sa PT_SPAWN() |
ban4jp | 0:685224d2f66d | 76 | * |
ban4jp | 0:685224d2f66d | 77 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 78 | */ |
ban4jp | 0:685224d2f66d | 79 | #define PT_INIT(pt) LC_INIT((pt)->lc) |
ban4jp | 0:685224d2f66d | 80 | |
ban4jp | 0:685224d2f66d | 81 | /** @} */ |
ban4jp | 0:685224d2f66d | 82 | |
ban4jp | 0:685224d2f66d | 83 | /** |
ban4jp | 0:685224d2f66d | 84 | * \name Declaration and definition |
ban4jp | 0:685224d2f66d | 85 | * @{ |
ban4jp | 0:685224d2f66d | 86 | */ |
ban4jp | 0:685224d2f66d | 87 | |
ban4jp | 0:685224d2f66d | 88 | /** |
ban4jp | 0:685224d2f66d | 89 | * Declaration of a protothread. |
ban4jp | 0:685224d2f66d | 90 | * |
ban4jp | 0:685224d2f66d | 91 | * This macro is used to declare a protothread. All protothreads must |
ban4jp | 0:685224d2f66d | 92 | * be declared with this macro. |
ban4jp | 0:685224d2f66d | 93 | * |
ban4jp | 0:685224d2f66d | 94 | * \param name_args The name and arguments of the C function |
ban4jp | 0:685224d2f66d | 95 | * implementing the protothread. |
ban4jp | 0:685224d2f66d | 96 | * |
ban4jp | 0:685224d2f66d | 97 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 98 | */ |
ban4jp | 0:685224d2f66d | 99 | #define PT_THREAD(name_args) char name_args |
ban4jp | 0:685224d2f66d | 100 | |
ban4jp | 0:685224d2f66d | 101 | /** |
ban4jp | 0:685224d2f66d | 102 | * Declare the start of a protothread inside the C function |
ban4jp | 0:685224d2f66d | 103 | * implementing the protothread. |
ban4jp | 0:685224d2f66d | 104 | * |
ban4jp | 0:685224d2f66d | 105 | * This macro is used to declare the starting point of a |
ban4jp | 0:685224d2f66d | 106 | * protothread. It should be placed at the start of the function in |
ban4jp | 0:685224d2f66d | 107 | * which the protothread runs. All C statements above the PT_BEGIN() |
ban4jp | 0:685224d2f66d | 108 | * invokation will be executed each time the protothread is scheduled. |
ban4jp | 0:685224d2f66d | 109 | * |
ban4jp | 0:685224d2f66d | 110 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 111 | * |
ban4jp | 0:685224d2f66d | 112 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 113 | */ |
ban4jp | 3:a2715e9c7737 | 114 | #define PT_BEGIN(pt) { char PT_YIELD_FLAG = 1; if (PT_YIELD_FLAG) {;} LC_RESUME((pt)->lc) |
ban4jp | 0:685224d2f66d | 115 | |
ban4jp | 0:685224d2f66d | 116 | /** |
ban4jp | 0:685224d2f66d | 117 | * Declare the end of a protothread. |
ban4jp | 0:685224d2f66d | 118 | * |
ban4jp | 0:685224d2f66d | 119 | * This macro is used for declaring that a protothread ends. It must |
ban4jp | 0:685224d2f66d | 120 | * always be used together with a matching PT_BEGIN() macro. |
ban4jp | 0:685224d2f66d | 121 | * |
ban4jp | 0:685224d2f66d | 122 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 123 | * |
ban4jp | 0:685224d2f66d | 124 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 125 | */ |
ban4jp | 0:685224d2f66d | 126 | #define PT_END(pt) LC_END((pt)->lc); PT_YIELD_FLAG = 0; \ |
ban4jp | 0:685224d2f66d | 127 | PT_INIT(pt); return PT_ENDED; } |
ban4jp | 0:685224d2f66d | 128 | |
ban4jp | 0:685224d2f66d | 129 | /** @} */ |
ban4jp | 0:685224d2f66d | 130 | |
ban4jp | 0:685224d2f66d | 131 | /** |
ban4jp | 0:685224d2f66d | 132 | * \name Blocked wait |
ban4jp | 0:685224d2f66d | 133 | * @{ |
ban4jp | 0:685224d2f66d | 134 | */ |
ban4jp | 0:685224d2f66d | 135 | |
ban4jp | 0:685224d2f66d | 136 | /** |
ban4jp | 0:685224d2f66d | 137 | * Block and wait until condition is true. |
ban4jp | 0:685224d2f66d | 138 | * |
ban4jp | 0:685224d2f66d | 139 | * This macro blocks the protothread until the specified condition is |
ban4jp | 0:685224d2f66d | 140 | * true. |
ban4jp | 0:685224d2f66d | 141 | * |
ban4jp | 0:685224d2f66d | 142 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 143 | * \param condition The condition. |
ban4jp | 0:685224d2f66d | 144 | * |
ban4jp | 0:685224d2f66d | 145 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 146 | */ |
ban4jp | 0:685224d2f66d | 147 | #define PT_WAIT_UNTIL(pt, condition) \ |
ban4jp | 0:685224d2f66d | 148 | do { \ |
ban4jp | 0:685224d2f66d | 149 | LC_SET((pt)->lc); \ |
ban4jp | 0:685224d2f66d | 150 | if(!(condition)) { \ |
ban4jp | 0:685224d2f66d | 151 | return PT_WAITING; \ |
ban4jp | 0:685224d2f66d | 152 | } \ |
ban4jp | 0:685224d2f66d | 153 | } while(0) |
ban4jp | 0:685224d2f66d | 154 | |
ban4jp | 0:685224d2f66d | 155 | /** |
ban4jp | 0:685224d2f66d | 156 | * Block and wait while condition is true. |
ban4jp | 0:685224d2f66d | 157 | * |
ban4jp | 0:685224d2f66d | 158 | * This function blocks and waits while condition is true. See |
ban4jp | 0:685224d2f66d | 159 | * PT_WAIT_UNTIL(). |
ban4jp | 0:685224d2f66d | 160 | * |
ban4jp | 0:685224d2f66d | 161 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 162 | * \param cond The condition. |
ban4jp | 0:685224d2f66d | 163 | * |
ban4jp | 0:685224d2f66d | 164 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 165 | */ |
ban4jp | 0:685224d2f66d | 166 | #define PT_WAIT_WHILE(pt, cond) PT_WAIT_UNTIL((pt), !(cond)) |
ban4jp | 0:685224d2f66d | 167 | |
ban4jp | 0:685224d2f66d | 168 | /** @} */ |
ban4jp | 0:685224d2f66d | 169 | |
ban4jp | 0:685224d2f66d | 170 | /** |
ban4jp | 0:685224d2f66d | 171 | * \name Hierarchical protothreads |
ban4jp | 0:685224d2f66d | 172 | * @{ |
ban4jp | 0:685224d2f66d | 173 | */ |
ban4jp | 0:685224d2f66d | 174 | |
ban4jp | 0:685224d2f66d | 175 | /** |
ban4jp | 0:685224d2f66d | 176 | * Block and wait until a child protothread completes. |
ban4jp | 0:685224d2f66d | 177 | * |
ban4jp | 0:685224d2f66d | 178 | * This macro schedules a child protothread. The current protothread |
ban4jp | 0:685224d2f66d | 179 | * will block until the child protothread completes. |
ban4jp | 0:685224d2f66d | 180 | * |
ban4jp | 0:685224d2f66d | 181 | * \note The child protothread must be manually initialized with the |
ban4jp | 0:685224d2f66d | 182 | * PT_INIT() function before this function is used. |
ban4jp | 0:685224d2f66d | 183 | * |
ban4jp | 0:685224d2f66d | 184 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 185 | * \param thread The child protothread with arguments |
ban4jp | 0:685224d2f66d | 186 | * |
ban4jp | 0:685224d2f66d | 187 | * \sa PT_SPAWN() |
ban4jp | 0:685224d2f66d | 188 | * |
ban4jp | 0:685224d2f66d | 189 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 190 | */ |
ban4jp | 0:685224d2f66d | 191 | #define PT_WAIT_THREAD(pt, thread) PT_WAIT_WHILE((pt), PT_SCHEDULE(thread)) |
ban4jp | 0:685224d2f66d | 192 | |
ban4jp | 0:685224d2f66d | 193 | /** |
ban4jp | 0:685224d2f66d | 194 | * Spawn a child protothread and wait until it exits. |
ban4jp | 0:685224d2f66d | 195 | * |
ban4jp | 0:685224d2f66d | 196 | * This macro spawns a child protothread and waits until it exits. The |
ban4jp | 0:685224d2f66d | 197 | * macro can only be used within a protothread. |
ban4jp | 0:685224d2f66d | 198 | * |
ban4jp | 0:685224d2f66d | 199 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 200 | * \param child A pointer to the child protothread's control structure. |
ban4jp | 0:685224d2f66d | 201 | * \param thread The child protothread with arguments |
ban4jp | 0:685224d2f66d | 202 | * |
ban4jp | 0:685224d2f66d | 203 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 204 | */ |
ban4jp | 0:685224d2f66d | 205 | #define PT_SPAWN(pt, child, thread) \ |
ban4jp | 0:685224d2f66d | 206 | do { \ |
ban4jp | 0:685224d2f66d | 207 | PT_INIT((child)); \ |
ban4jp | 0:685224d2f66d | 208 | PT_WAIT_THREAD((pt), (thread)); \ |
ban4jp | 0:685224d2f66d | 209 | } while(0) |
ban4jp | 0:685224d2f66d | 210 | |
ban4jp | 0:685224d2f66d | 211 | /** @} */ |
ban4jp | 0:685224d2f66d | 212 | |
ban4jp | 0:685224d2f66d | 213 | /** |
ban4jp | 0:685224d2f66d | 214 | * \name Exiting and restarting |
ban4jp | 0:685224d2f66d | 215 | * @{ |
ban4jp | 0:685224d2f66d | 216 | */ |
ban4jp | 0:685224d2f66d | 217 | |
ban4jp | 0:685224d2f66d | 218 | /** |
ban4jp | 0:685224d2f66d | 219 | * Restart the protothread. |
ban4jp | 0:685224d2f66d | 220 | * |
ban4jp | 0:685224d2f66d | 221 | * This macro will block and cause the running protothread to restart |
ban4jp | 0:685224d2f66d | 222 | * its execution at the place of the PT_BEGIN() call. |
ban4jp | 0:685224d2f66d | 223 | * |
ban4jp | 0:685224d2f66d | 224 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 225 | * |
ban4jp | 0:685224d2f66d | 226 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 227 | */ |
ban4jp | 0:685224d2f66d | 228 | #define PT_RESTART(pt) \ |
ban4jp | 0:685224d2f66d | 229 | do { \ |
ban4jp | 0:685224d2f66d | 230 | PT_INIT(pt); \ |
ban4jp | 0:685224d2f66d | 231 | return PT_WAITING; \ |
ban4jp | 0:685224d2f66d | 232 | } while(0) |
ban4jp | 0:685224d2f66d | 233 | |
ban4jp | 0:685224d2f66d | 234 | /** |
ban4jp | 0:685224d2f66d | 235 | * Exit the protothread. |
ban4jp | 0:685224d2f66d | 236 | * |
ban4jp | 0:685224d2f66d | 237 | * This macro causes the protothread to exit. If the protothread was |
ban4jp | 0:685224d2f66d | 238 | * spawned by another protothread, the parent protothread will become |
ban4jp | 0:685224d2f66d | 239 | * unblocked and can continue to run. |
ban4jp | 0:685224d2f66d | 240 | * |
ban4jp | 0:685224d2f66d | 241 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 242 | * |
ban4jp | 0:685224d2f66d | 243 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 244 | */ |
ban4jp | 0:685224d2f66d | 245 | #define PT_EXIT(pt) \ |
ban4jp | 0:685224d2f66d | 246 | do { \ |
ban4jp | 0:685224d2f66d | 247 | PT_INIT(pt); \ |
ban4jp | 0:685224d2f66d | 248 | return PT_EXITED; \ |
ban4jp | 0:685224d2f66d | 249 | } while(0) |
ban4jp | 0:685224d2f66d | 250 | |
ban4jp | 0:685224d2f66d | 251 | /** @} */ |
ban4jp | 0:685224d2f66d | 252 | |
ban4jp | 0:685224d2f66d | 253 | /** |
ban4jp | 0:685224d2f66d | 254 | * \name Calling a protothread |
ban4jp | 0:685224d2f66d | 255 | * @{ |
ban4jp | 0:685224d2f66d | 256 | */ |
ban4jp | 0:685224d2f66d | 257 | |
ban4jp | 0:685224d2f66d | 258 | /** |
ban4jp | 0:685224d2f66d | 259 | * Schedule a protothread. |
ban4jp | 0:685224d2f66d | 260 | * |
ban4jp | 3:a2715e9c7737 | 261 | * This function schedules a protothread. The return value of the |
ban4jp | 0:685224d2f66d | 262 | * function is non-zero if the protothread is running or zero if the |
ban4jp | 0:685224d2f66d | 263 | * protothread has exited. |
ban4jp | 0:685224d2f66d | 264 | * |
ban4jp | 0:685224d2f66d | 265 | * \param f The call to the C function implementing the protothread to |
ban4jp | 0:685224d2f66d | 266 | * be scheduled |
ban4jp | 0:685224d2f66d | 267 | * |
ban4jp | 0:685224d2f66d | 268 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 269 | */ |
ban4jp | 3:a2715e9c7737 | 270 | #define PT_SCHEDULE(f) ((f) < PT_EXITED) |
ban4jp | 0:685224d2f66d | 271 | |
ban4jp | 0:685224d2f66d | 272 | /** @} */ |
ban4jp | 0:685224d2f66d | 273 | |
ban4jp | 0:685224d2f66d | 274 | /** |
ban4jp | 0:685224d2f66d | 275 | * \name Yielding from a protothread |
ban4jp | 0:685224d2f66d | 276 | * @{ |
ban4jp | 0:685224d2f66d | 277 | */ |
ban4jp | 0:685224d2f66d | 278 | |
ban4jp | 0:685224d2f66d | 279 | /** |
ban4jp | 0:685224d2f66d | 280 | * Yield from the current protothread. |
ban4jp | 0:685224d2f66d | 281 | * |
ban4jp | 0:685224d2f66d | 282 | * This function will yield the protothread, thereby allowing other |
ban4jp | 0:685224d2f66d | 283 | * processing to take place in the system. |
ban4jp | 0:685224d2f66d | 284 | * |
ban4jp | 0:685224d2f66d | 285 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 286 | * |
ban4jp | 0:685224d2f66d | 287 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 288 | */ |
ban4jp | 0:685224d2f66d | 289 | #define PT_YIELD(pt) \ |
ban4jp | 0:685224d2f66d | 290 | do { \ |
ban4jp | 0:685224d2f66d | 291 | PT_YIELD_FLAG = 0; \ |
ban4jp | 0:685224d2f66d | 292 | LC_SET((pt)->lc); \ |
ban4jp | 0:685224d2f66d | 293 | if(PT_YIELD_FLAG == 0) { \ |
ban4jp | 0:685224d2f66d | 294 | return PT_YIELDED; \ |
ban4jp | 0:685224d2f66d | 295 | } \ |
ban4jp | 0:685224d2f66d | 296 | } while(0) |
ban4jp | 0:685224d2f66d | 297 | |
ban4jp | 0:685224d2f66d | 298 | /** |
ban4jp | 0:685224d2f66d | 299 | * \brief Yield from the protothread until a condition occurs. |
ban4jp | 0:685224d2f66d | 300 | * \param pt A pointer to the protothread control structure. |
ban4jp | 0:685224d2f66d | 301 | * \param cond The condition. |
ban4jp | 0:685224d2f66d | 302 | * |
ban4jp | 0:685224d2f66d | 303 | * This function will yield the protothread, until the |
ban4jp | 0:685224d2f66d | 304 | * specified condition evaluates to true. |
ban4jp | 0:685224d2f66d | 305 | * |
ban4jp | 0:685224d2f66d | 306 | * |
ban4jp | 0:685224d2f66d | 307 | * \hideinitializer |
ban4jp | 0:685224d2f66d | 308 | */ |
ban4jp | 0:685224d2f66d | 309 | #define PT_YIELD_UNTIL(pt, cond) \ |
ban4jp | 0:685224d2f66d | 310 | do { \ |
ban4jp | 0:685224d2f66d | 311 | PT_YIELD_FLAG = 0; \ |
ban4jp | 0:685224d2f66d | 312 | LC_SET((pt)->lc); \ |
ban4jp | 0:685224d2f66d | 313 | if((PT_YIELD_FLAG == 0) || !(cond)) { \ |
ban4jp | 0:685224d2f66d | 314 | return PT_YIELDED; \ |
ban4jp | 0:685224d2f66d | 315 | } \ |
ban4jp | 0:685224d2f66d | 316 | } while(0) |
ban4jp | 0:685224d2f66d | 317 | |
ban4jp | 0:685224d2f66d | 318 | /** @} */ |
ban4jp | 0:685224d2f66d | 319 | |
ban4jp | 0:685224d2f66d | 320 | #endif /* __PT_H__ */ |
ban4jp | 0:685224d2f66d | 321 | |
ban4jp | 0:685224d2f66d | 322 | /** @} */ |