Jonathon Fletcher / rtx

in OS_TSK, rename run as tsk_run and new as tsk_new.

rt_List.c@0:5f46ebd8588e, 2012-09-02 (annotated)

Committer:
jonathonfletcher
Date:
Sun Sep 02 03:24:20 2012 +0000
Revision:
0:5f46ebd8588e
in OS_TSK, rename run as tsk_run and new as tsk_new.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jonathonfletcher 0:5f46ebd8588e 1 /*----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 2 * RL-ARM - RTX
jonathonfletcher 0:5f46ebd8588e 3 *----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 4 * Name: RT_LIST.C
jonathonfletcher 0:5f46ebd8588e 5 * Purpose: Functions for the management of different lists
jonathonfletcher 0:5f46ebd8588e 6 * Rev.: V4.50
jonathonfletcher 0:5f46ebd8588e 7 *----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 8 *
jonathonfletcher 0:5f46ebd8588e 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
jonathonfletcher 0:5f46ebd8588e 10 * All rights reserved.
jonathonfletcher 0:5f46ebd8588e 11 * Redistribution and use in source and binary forms, with or without
jonathonfletcher 0:5f46ebd8588e 12 * modification, are permitted provided that the following conditions are met:
jonathonfletcher 0:5f46ebd8588e 13 * - Redistributions of source code must retain the above copyright
jonathonfletcher 0:5f46ebd8588e 14 * notice, this list of conditions and the following disclaimer.
jonathonfletcher 0:5f46ebd8588e 15 * - Redistributions in binary form must reproduce the above copyright
jonathonfletcher 0:5f46ebd8588e 16 * notice, this list of conditions and the following disclaimer in the
jonathonfletcher 0:5f46ebd8588e 17 * documentation and/or other materials provided with the distribution.
jonathonfletcher 0:5f46ebd8588e 18 * - Neither the name of ARM nor the names of its contributors may be used
jonathonfletcher 0:5f46ebd8588e 19 * to endorse or promote products derived from this software without
jonathonfletcher 0:5f46ebd8588e 20 * specific prior written permission.
jonathonfletcher 0:5f46ebd8588e 21 *
jonathonfletcher 0:5f46ebd8588e 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
jonathonfletcher 0:5f46ebd8588e 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
jonathonfletcher 0:5f46ebd8588e 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
jonathonfletcher 0:5f46ebd8588e 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
jonathonfletcher 0:5f46ebd8588e 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
jonathonfletcher 0:5f46ebd8588e 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
jonathonfletcher 0:5f46ebd8588e 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
jonathonfletcher 0:5f46ebd8588e 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
jonathonfletcher 0:5f46ebd8588e 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
jonathonfletcher 0:5f46ebd8588e 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
jonathonfletcher 0:5f46ebd8588e 32 * POSSIBILITY OF SUCH DAMAGE.
jonathonfletcher 0:5f46ebd8588e 33 *---------------------------------------------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 34
jonathonfletcher 0:5f46ebd8588e 35 #include "rt_TypeDef.h"
jonathonfletcher 0:5f46ebd8588e 36 #include "RTX_Config.h"
jonathonfletcher 0:5f46ebd8588e 37 #include "rt_System.h"
jonathonfletcher 0:5f46ebd8588e 38 #include "rt_List.h"
jonathonfletcher 0:5f46ebd8588e 39 #include "rt_Task.h"
jonathonfletcher 0:5f46ebd8588e 40 #include "rt_Time.h"
jonathonfletcher 0:5f46ebd8588e 41 #include "rt_HAL_CM.h"
jonathonfletcher 0:5f46ebd8588e 42
jonathonfletcher 0:5f46ebd8588e 43 /*----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 44 * Global Variables
jonathonfletcher 0:5f46ebd8588e 45 *---------------------------------------------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 46
jonathonfletcher 0:5f46ebd8588e 47 /* List head of chained ready tasks */
jonathonfletcher 0:5f46ebd8588e 48 struct OS_XCB os_rdy;
jonathonfletcher 0:5f46ebd8588e 49 /* List head of chained delay tasks */
jonathonfletcher 0:5f46ebd8588e 50 struct OS_XCB os_dly;
jonathonfletcher 0:5f46ebd8588e 51
jonathonfletcher 0:5f46ebd8588e 52
jonathonfletcher 0:5f46ebd8588e 53 /*----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 54 * Functions
jonathonfletcher 0:5f46ebd8588e 55 *---------------------------------------------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 56
jonathonfletcher 0:5f46ebd8588e 57
jonathonfletcher 0:5f46ebd8588e 58 /*--------------------------- rt_put_prio -----------------------------------*/
jonathonfletcher 0:5f46ebd8588e 59
jonathonfletcher 0:5f46ebd8588e 60 void rt_put_prio (P_XCB p_CB, P_TCB p_task) {
jonathonfletcher 0:5f46ebd8588e 61 /* Put task identified with "p_task" into list ordered by priority. */
jonathonfletcher 0:5f46ebd8588e 62 /* "p_CB" points to head of list; list has always an element at end with */
jonathonfletcher 0:5f46ebd8588e 63 /* a priority less than "p_task->prio". */
jonathonfletcher 0:5f46ebd8588e 64 P_TCB p_CB2;
jonathonfletcher 0:5f46ebd8588e 65 U32 prio;
jonathonfletcher 0:5f46ebd8588e 66 BOOL sem_mbx = __FALSE;
jonathonfletcher 0:5f46ebd8588e 67
jonathonfletcher 0:5f46ebd8588e 68 if (p_CB->cb_type == SCB || p_CB->cb_type == MCB || p_CB->cb_type == MUCB) {
jonathonfletcher 0:5f46ebd8588e 69 sem_mbx = __TRUE;
jonathonfletcher 0:5f46ebd8588e 70 }
jonathonfletcher 0:5f46ebd8588e 71 prio = p_task->prio;
jonathonfletcher 0:5f46ebd8588e 72 p_CB2 = p_CB->p_lnk;
jonathonfletcher 0:5f46ebd8588e 73 /* Search for an entry in the list */
jonathonfletcher 0:5f46ebd8588e 74 while (p_CB2 != NULL && prio <= p_CB2->prio) {
jonathonfletcher 0:5f46ebd8588e 75 p_CB = (P_XCB)p_CB2;
jonathonfletcher 0:5f46ebd8588e 76 p_CB2 = p_CB2->p_lnk;
jonathonfletcher 0:5f46ebd8588e 77 }
jonathonfletcher 0:5f46ebd8588e 78 /* Entry found, insert the task into the list */
jonathonfletcher 0:5f46ebd8588e 79 p_task->p_lnk = p_CB2;
jonathonfletcher 0:5f46ebd8588e 80 p_CB->p_lnk = p_task;
jonathonfletcher 0:5f46ebd8588e 81 if (sem_mbx) {
jonathonfletcher 0:5f46ebd8588e 82 if (p_CB2 != NULL) {
jonathonfletcher 0:5f46ebd8588e 83 p_CB2->p_rlnk = p_task;
jonathonfletcher 0:5f46ebd8588e 84 }
jonathonfletcher 0:5f46ebd8588e 85 p_task->p_rlnk = (P_TCB)p_CB;
jonathonfletcher 0:5f46ebd8588e 86 }
jonathonfletcher 0:5f46ebd8588e 87 else {
jonathonfletcher 0:5f46ebd8588e 88 p_task->p_rlnk = NULL;
jonathonfletcher 0:5f46ebd8588e 89 }
jonathonfletcher 0:5f46ebd8588e 90 }
jonathonfletcher 0:5f46ebd8588e 91
jonathonfletcher 0:5f46ebd8588e 92
jonathonfletcher 0:5f46ebd8588e 93 /*--------------------------- rt_get_first ----------------------------------*/
jonathonfletcher 0:5f46ebd8588e 94
jonathonfletcher 0:5f46ebd8588e 95 P_TCB rt_get_first (P_XCB p_CB) {
jonathonfletcher 0:5f46ebd8588e 96 /* Get task at head of list: it is the task with highest priority. */
jonathonfletcher 0:5f46ebd8588e 97 /* "p_CB" points to head of list. */
jonathonfletcher 0:5f46ebd8588e 98 P_TCB p_first;
jonathonfletcher 0:5f46ebd8588e 99
jonathonfletcher 0:5f46ebd8588e 100 p_first = p_CB->p_lnk;
jonathonfletcher 0:5f46ebd8588e 101 p_CB->p_lnk = p_first->p_lnk;
jonathonfletcher 0:5f46ebd8588e 102 if (p_CB->cb_type == SCB || p_CB->cb_type == MCB || p_CB->cb_type == MUCB) {
jonathonfletcher 0:5f46ebd8588e 103 if (p_first->p_lnk != NULL) {
jonathonfletcher 0:5f46ebd8588e 104 p_first->p_lnk->p_rlnk = (P_TCB)p_CB;
jonathonfletcher 0:5f46ebd8588e 105 p_first->p_lnk = NULL;
jonathonfletcher 0:5f46ebd8588e 106 }
jonathonfletcher 0:5f46ebd8588e 107 p_first->p_rlnk = NULL;
jonathonfletcher 0:5f46ebd8588e 108 }
jonathonfletcher 0:5f46ebd8588e 109 else {
jonathonfletcher 0:5f46ebd8588e 110 p_first->p_lnk = NULL;
jonathonfletcher 0:5f46ebd8588e 111 }
jonathonfletcher 0:5f46ebd8588e 112 return (p_first);
jonathonfletcher 0:5f46ebd8588e 113 }
jonathonfletcher 0:5f46ebd8588e 114
jonathonfletcher 0:5f46ebd8588e 115
jonathonfletcher 0:5f46ebd8588e 116 /*--------------------------- rt_put_rdy_first ------------------------------*/
jonathonfletcher 0:5f46ebd8588e 117
jonathonfletcher 0:5f46ebd8588e 118 void rt_put_rdy_first (P_TCB p_task) {
jonathonfletcher 0:5f46ebd8588e 119 /* Put task identified with "p_task" at the head of the ready list. The */
jonathonfletcher 0:5f46ebd8588e 120 /* task must have at least a priority equal to highest priority in list. */
jonathonfletcher 0:5f46ebd8588e 121 p_task->p_lnk = os_rdy.p_lnk;
jonathonfletcher 0:5f46ebd8588e 122 p_task->p_rlnk = NULL;
jonathonfletcher 0:5f46ebd8588e 123 os_rdy.p_lnk = p_task;
jonathonfletcher 0:5f46ebd8588e 124 }
jonathonfletcher 0:5f46ebd8588e 125
jonathonfletcher 0:5f46ebd8588e 126
jonathonfletcher 0:5f46ebd8588e 127 /*--------------------------- rt_get_same_rdy_prio --------------------------*/
jonathonfletcher 0:5f46ebd8588e 128
jonathonfletcher 0:5f46ebd8588e 129 P_TCB rt_get_same_rdy_prio (void) {
jonathonfletcher 0:5f46ebd8588e 130 /* Remove a task of same priority from ready list if any exists. Other- */
jonathonfletcher 0:5f46ebd8588e 131 /* wise return NULL. */
jonathonfletcher 0:5f46ebd8588e 132 P_TCB p_first;
jonathonfletcher 0:5f46ebd8588e 133
jonathonfletcher 0:5f46ebd8588e 134 p_first = os_rdy.p_lnk;
jonathonfletcher 0:5f46ebd8588e 135 if (p_first->prio == os_tsk.tsk_run->prio) {
jonathonfletcher 0:5f46ebd8588e 136 os_rdy.p_lnk = os_rdy.p_lnk->p_lnk;
jonathonfletcher 0:5f46ebd8588e 137 return (p_first);
jonathonfletcher 0:5f46ebd8588e 138 }
jonathonfletcher 0:5f46ebd8588e 139 return (NULL);
jonathonfletcher 0:5f46ebd8588e 140 }
jonathonfletcher 0:5f46ebd8588e 141
jonathonfletcher 0:5f46ebd8588e 142
jonathonfletcher 0:5f46ebd8588e 143 /*--------------------------- rt_resort_prio --------------------------------*/
jonathonfletcher 0:5f46ebd8588e 144
jonathonfletcher 0:5f46ebd8588e 145 void rt_resort_prio (P_TCB p_task) {
jonathonfletcher 0:5f46ebd8588e 146 /* Re-sort ordered lists after the priority of 'p_task' has changed. */
jonathonfletcher 0:5f46ebd8588e 147 P_TCB p_CB;
jonathonfletcher 0:5f46ebd8588e 148
jonathonfletcher 0:5f46ebd8588e 149 if (p_task->p_rlnk == NULL) {
jonathonfletcher 0:5f46ebd8588e 150 if (p_task->state == READY) {
jonathonfletcher 0:5f46ebd8588e 151 /* Task is chained into READY list. */
jonathonfletcher 0:5f46ebd8588e 152 p_CB = (P_TCB)&os_rdy;
jonathonfletcher 0:5f46ebd8588e 153 goto res;
jonathonfletcher 0:5f46ebd8588e 154 }
jonathonfletcher 0:5f46ebd8588e 155 }
jonathonfletcher 0:5f46ebd8588e 156 else {
jonathonfletcher 0:5f46ebd8588e 157 p_CB = p_task->p_rlnk;
jonathonfletcher 0:5f46ebd8588e 158 while (p_CB->cb_type == TCB) {
jonathonfletcher 0:5f46ebd8588e 159 /* Find a header of this task chain list. */
jonathonfletcher 0:5f46ebd8588e 160 p_CB = p_CB->p_rlnk;
jonathonfletcher 0:5f46ebd8588e 161 }
jonathonfletcher 0:5f46ebd8588e 162 res:rt_rmv_list (p_task);
jonathonfletcher 0:5f46ebd8588e 163 rt_put_prio ((P_XCB)p_CB, p_task);
jonathonfletcher 0:5f46ebd8588e 164 }
jonathonfletcher 0:5f46ebd8588e 165 }
jonathonfletcher 0:5f46ebd8588e 166
jonathonfletcher 0:5f46ebd8588e 167
jonathonfletcher 0:5f46ebd8588e 168 /*--------------------------- rt_put_dly ------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 169
jonathonfletcher 0:5f46ebd8588e 170 void rt_put_dly (P_TCB p_task, U16 delay) {
jonathonfletcher 0:5f46ebd8588e 171 /* Put a task identified with "p_task" into chained delay wait list using */
jonathonfletcher 0:5f46ebd8588e 172 /* a delay value of "delay". */
jonathonfletcher 0:5f46ebd8588e 173 P_TCB p;
jonathonfletcher 0:5f46ebd8588e 174 U32 delta,idelay = delay;
jonathonfletcher 0:5f46ebd8588e 175
jonathonfletcher 0:5f46ebd8588e 176 p = (P_TCB)&os_dly;
jonathonfletcher 0:5f46ebd8588e 177 if (p->p_dlnk == NULL) {
jonathonfletcher 0:5f46ebd8588e 178 /* Delay list empty */
jonathonfletcher 0:5f46ebd8588e 179 delta = 0;
jonathonfletcher 0:5f46ebd8588e 180 goto last;
jonathonfletcher 0:5f46ebd8588e 181 }
jonathonfletcher 0:5f46ebd8588e 182 delta = os_dly.delta_time;
jonathonfletcher 0:5f46ebd8588e 183 while (delta < idelay) {
jonathonfletcher 0:5f46ebd8588e 184 if (p->p_dlnk == NULL) {
jonathonfletcher 0:5f46ebd8588e 185 /* End of list found */
jonathonfletcher 0:5f46ebd8588e 186 last: p_task->p_dlnk = NULL;
jonathonfletcher 0:5f46ebd8588e 187 p->p_dlnk = p_task;
jonathonfletcher 0:5f46ebd8588e 188 p_task->p_blnk = p;
jonathonfletcher 0:5f46ebd8588e 189 p->delta_time = (U16)(idelay - delta);
jonathonfletcher 0:5f46ebd8588e 190 p_task->delta_time = 0;
jonathonfletcher 0:5f46ebd8588e 191 return;
jonathonfletcher 0:5f46ebd8588e 192 }
jonathonfletcher 0:5f46ebd8588e 193 p = p->p_dlnk;
jonathonfletcher 0:5f46ebd8588e 194 delta += p->delta_time;
jonathonfletcher 0:5f46ebd8588e 195 }
jonathonfletcher 0:5f46ebd8588e 196 /* Right place found */
jonathonfletcher 0:5f46ebd8588e 197 p_task->p_dlnk = p->p_dlnk;
jonathonfletcher 0:5f46ebd8588e 198 p->p_dlnk = p_task;
jonathonfletcher 0:5f46ebd8588e 199 p_task->p_blnk = p;
jonathonfletcher 0:5f46ebd8588e 200 if (p_task->p_dlnk != NULL) {
jonathonfletcher 0:5f46ebd8588e 201 p_task->p_dlnk->p_blnk = p_task;
jonathonfletcher 0:5f46ebd8588e 202 }
jonathonfletcher 0:5f46ebd8588e 203 p_task->delta_time = (U16)(delta - idelay);
jonathonfletcher 0:5f46ebd8588e 204 p->delta_time -= p_task->delta_time;
jonathonfletcher 0:5f46ebd8588e 205 }
jonathonfletcher 0:5f46ebd8588e 206
jonathonfletcher 0:5f46ebd8588e 207
jonathonfletcher 0:5f46ebd8588e 208 /*--------------------------- rt_dec_dly ------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 209
jonathonfletcher 0:5f46ebd8588e 210 void rt_dec_dly (void) {
jonathonfletcher 0:5f46ebd8588e 211 /* Decrement delta time of list head: remove tasks having a value of zero.*/
jonathonfletcher 0:5f46ebd8588e 212 P_TCB p_rdy;
jonathonfletcher 0:5f46ebd8588e 213
jonathonfletcher 0:5f46ebd8588e 214 if (os_dly.p_dlnk == NULL) {
jonathonfletcher 0:5f46ebd8588e 215 return;
jonathonfletcher 0:5f46ebd8588e 216 }
jonathonfletcher 0:5f46ebd8588e 217 os_dly.delta_time--;
jonathonfletcher 0:5f46ebd8588e 218 while ((os_dly.delta_time == 0) && (os_dly.p_dlnk != NULL)) {
jonathonfletcher 0:5f46ebd8588e 219 p_rdy = os_dly.p_dlnk;
jonathonfletcher 0:5f46ebd8588e 220 if (p_rdy->p_rlnk != NULL) {
jonathonfletcher 0:5f46ebd8588e 221 /* Task is really enqueued, remove task from semaphore/mailbox */
jonathonfletcher 0:5f46ebd8588e 222 /* timeout waiting list. */
jonathonfletcher 0:5f46ebd8588e 223 p_rdy->p_rlnk->p_lnk = p_rdy->p_lnk;
jonathonfletcher 0:5f46ebd8588e 224 if (p_rdy->p_lnk != NULL) {
jonathonfletcher 0:5f46ebd8588e 225 p_rdy->p_lnk->p_rlnk = p_rdy->p_rlnk;
jonathonfletcher 0:5f46ebd8588e 226 p_rdy->p_lnk = NULL;
jonathonfletcher 0:5f46ebd8588e 227 }
jonathonfletcher 0:5f46ebd8588e 228 p_rdy->p_rlnk = NULL;
jonathonfletcher 0:5f46ebd8588e 229 }
jonathonfletcher 0:5f46ebd8588e 230 rt_put_prio (&os_rdy, p_rdy);
jonathonfletcher 0:5f46ebd8588e 231 os_dly.delta_time = p_rdy->delta_time;
jonathonfletcher 0:5f46ebd8588e 232 if (p_rdy->state == WAIT_ITV) {
jonathonfletcher 0:5f46ebd8588e 233 /* Calculate the next time for interval wait. */
jonathonfletcher 0:5f46ebd8588e 234 p_rdy->delta_time = p_rdy->interval_time + (U16)os_time;
jonathonfletcher 0:5f46ebd8588e 235 }
jonathonfletcher 0:5f46ebd8588e 236 p_rdy->state = READY;
jonathonfletcher 0:5f46ebd8588e 237 os_dly.p_dlnk = p_rdy->p_dlnk;
jonathonfletcher 0:5f46ebd8588e 238 if (p_rdy->p_dlnk != NULL) {
jonathonfletcher 0:5f46ebd8588e 239 p_rdy->p_dlnk->p_blnk = (P_TCB)&os_dly;
jonathonfletcher 0:5f46ebd8588e 240 p_rdy->p_dlnk = NULL;
jonathonfletcher 0:5f46ebd8588e 241 }
jonathonfletcher 0:5f46ebd8588e 242 p_rdy->p_blnk = NULL;
jonathonfletcher 0:5f46ebd8588e 243 }
jonathonfletcher 0:5f46ebd8588e 244 }
jonathonfletcher 0:5f46ebd8588e 245
jonathonfletcher 0:5f46ebd8588e 246
jonathonfletcher 0:5f46ebd8588e 247 /*--------------------------- rt_rmv_list -----------------------------------*/
jonathonfletcher 0:5f46ebd8588e 248
jonathonfletcher 0:5f46ebd8588e 249 void rt_rmv_list (P_TCB p_task) {
jonathonfletcher 0:5f46ebd8588e 250 /* Remove task identified with "p_task" from ready, semaphore or mailbox */
jonathonfletcher 0:5f46ebd8588e 251 /* waiting list if enqueued. */
jonathonfletcher 0:5f46ebd8588e 252 P_TCB p_b;
jonathonfletcher 0:5f46ebd8588e 253
jonathonfletcher 0:5f46ebd8588e 254 if (p_task->p_rlnk != NULL) {
jonathonfletcher 0:5f46ebd8588e 255 /* A task is enqueued in semaphore / mailbox waiting list. */
jonathonfletcher 0:5f46ebd8588e 256 p_task->p_rlnk->p_lnk = p_task->p_lnk;
jonathonfletcher 0:5f46ebd8588e 257 if (p_task->p_lnk != NULL) {
jonathonfletcher 0:5f46ebd8588e 258 p_task->p_lnk->p_rlnk = p_task->p_rlnk;
jonathonfletcher 0:5f46ebd8588e 259 }
jonathonfletcher 0:5f46ebd8588e 260 return;
jonathonfletcher 0:5f46ebd8588e 261 }
jonathonfletcher 0:5f46ebd8588e 262
jonathonfletcher 0:5f46ebd8588e 263 p_b = (P_TCB)&os_rdy;
jonathonfletcher 0:5f46ebd8588e 264 while (p_b != NULL) {
jonathonfletcher 0:5f46ebd8588e 265 /* Search the ready list for task "p_task" */
jonathonfletcher 0:5f46ebd8588e 266 if (p_b->p_lnk == p_task) {
jonathonfletcher 0:5f46ebd8588e 267 p_b->p_lnk = p_task->p_lnk;
jonathonfletcher 0:5f46ebd8588e 268 return;
jonathonfletcher 0:5f46ebd8588e 269 }
jonathonfletcher 0:5f46ebd8588e 270 p_b = p_b->p_lnk;
jonathonfletcher 0:5f46ebd8588e 271 }
jonathonfletcher 0:5f46ebd8588e 272 }
jonathonfletcher 0:5f46ebd8588e 273
jonathonfletcher 0:5f46ebd8588e 274
jonathonfletcher 0:5f46ebd8588e 275 /*--------------------------- rt_rmv_dly ------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 276
jonathonfletcher 0:5f46ebd8588e 277 void rt_rmv_dly (P_TCB p_task) {
jonathonfletcher 0:5f46ebd8588e 278 /* Remove task identified with "p_task" from delay list if enqueued. */
jonathonfletcher 0:5f46ebd8588e 279 P_TCB p_b;
jonathonfletcher 0:5f46ebd8588e 280
jonathonfletcher 0:5f46ebd8588e 281 p_b = p_task->p_blnk;
jonathonfletcher 0:5f46ebd8588e 282 if (p_b != NULL) {
jonathonfletcher 0:5f46ebd8588e 283 /* Task is really enqueued */
jonathonfletcher 0:5f46ebd8588e 284 p_b->p_dlnk = p_task->p_dlnk;
jonathonfletcher 0:5f46ebd8588e 285 if (p_task->p_dlnk != NULL) {
jonathonfletcher 0:5f46ebd8588e 286 /* 'p_task' is in the middle of list */
jonathonfletcher 0:5f46ebd8588e 287 p_b->delta_time += p_task->delta_time;
jonathonfletcher 0:5f46ebd8588e 288 p_task->p_dlnk->p_blnk = p_b;
jonathonfletcher 0:5f46ebd8588e 289 p_task->p_dlnk = NULL;
jonathonfletcher 0:5f46ebd8588e 290 }
jonathonfletcher 0:5f46ebd8588e 291 else {
jonathonfletcher 0:5f46ebd8588e 292 /* 'p_task' is at the end of list */
jonathonfletcher 0:5f46ebd8588e 293 p_b->delta_time = 0;
jonathonfletcher 0:5f46ebd8588e 294 }
jonathonfletcher 0:5f46ebd8588e 295 p_task->p_blnk = NULL;
jonathonfletcher 0:5f46ebd8588e 296 }
jonathonfletcher 0:5f46ebd8588e 297 }
jonathonfletcher 0:5f46ebd8588e 298
jonathonfletcher 0:5f46ebd8588e 299
jonathonfletcher 0:5f46ebd8588e 300 /*--------------------------- rt_psq_enq ------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 301
jonathonfletcher 0:5f46ebd8588e 302 void rt_psq_enq (OS_ID entry, U32 arg) {
jonathonfletcher 0:5f46ebd8588e 303 /* Insert post service request "entry" into ps-queue. */
jonathonfletcher 0:5f46ebd8588e 304 U32 idx;
jonathonfletcher 0:5f46ebd8588e 305
jonathonfletcher 0:5f46ebd8588e 306 idx = rt_inc_qi (os_psq->size, &os_psq->count, &os_psq->first);
jonathonfletcher 0:5f46ebd8588e 307 if (idx < os_psq->size) {
jonathonfletcher 0:5f46ebd8588e 308 os_psq->q[idx].id = entry;
jonathonfletcher 0:5f46ebd8588e 309 os_psq->q[idx].arg = arg;
jonathonfletcher 0:5f46ebd8588e 310 }
jonathonfletcher 0:5f46ebd8588e 311 else {
jonathonfletcher 0:5f46ebd8588e 312 os_error (OS_ERR_FIFO_OVF);
jonathonfletcher 0:5f46ebd8588e 313 }
jonathonfletcher 0:5f46ebd8588e 314 }
jonathonfletcher 0:5f46ebd8588e 315
jonathonfletcher 0:5f46ebd8588e 316
jonathonfletcher 0:5f46ebd8588e 317 /*----------------------------------------------------------------------------
jonathonfletcher 0:5f46ebd8588e 318 * end of file
jonathonfletcher 0:5f46ebd8588e 319 *---------------------------------------------------------------------------*/
jonathonfletcher 0:5f46ebd8588e 320