OS2
Dependents: GYRO_MPU6050 Bluetooth_Powered_Multimeter_Using_STM32F429_and_RTOS fyp
rtx/TARGET_ARM7/rt_List.c@0:a7c449cd2d5a, 2020-02-03 (annotated)
- Committer:
- guilhemMBED
- Date:
- Mon Feb 03 13:41:14 2020 +0000
- Revision:
- 0:a7c449cd2d5a
previous version;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
guilhemMBED | 0:a7c449cd2d5a | 1 | /*---------------------------------------------------------------------------- |
guilhemMBED | 0:a7c449cd2d5a | 2 | * RL-ARM - RTX |
guilhemMBED | 0:a7c449cd2d5a | 3 | *---------------------------------------------------------------------------- |
guilhemMBED | 0:a7c449cd2d5a | 4 | * Name: RT_LIST.C |
guilhemMBED | 0:a7c449cd2d5a | 5 | * Purpose: Functions for the management of different lists |
guilhemMBED | 0:a7c449cd2d5a | 6 | * Rev.: V4.60 |
guilhemMBED | 0:a7c449cd2d5a | 7 | *---------------------------------------------------------------------------- |
guilhemMBED | 0:a7c449cd2d5a | 8 | * |
guilhemMBED | 0:a7c449cd2d5a | 9 | * Copyright (c) 1999-2009 KEIL, 2009-2015 ARM Germany GmbH |
guilhemMBED | 0:a7c449cd2d5a | 10 | * All rights reserved. |
guilhemMBED | 0:a7c449cd2d5a | 11 | * Redistribution and use in source and binary forms, with or without |
guilhemMBED | 0:a7c449cd2d5a | 12 | * modification, are permitted provided that the following conditions are met: |
guilhemMBED | 0:a7c449cd2d5a | 13 | * - Redistributions of source code must retain the above copyright |
guilhemMBED | 0:a7c449cd2d5a | 14 | * notice, this list of conditions and the following disclaimer. |
guilhemMBED | 0:a7c449cd2d5a | 15 | * - Redistributions in binary form must reproduce the above copyright |
guilhemMBED | 0:a7c449cd2d5a | 16 | * notice, this list of conditions and the following disclaimer in the |
guilhemMBED | 0:a7c449cd2d5a | 17 | * documentation and/or other materials provided with the distribution. |
guilhemMBED | 0:a7c449cd2d5a | 18 | * - Neither the name of ARM nor the names of its contributors may be used |
guilhemMBED | 0:a7c449cd2d5a | 19 | * to endorse or promote products derived from this software without |
guilhemMBED | 0:a7c449cd2d5a | 20 | * specific prior written permission. |
guilhemMBED | 0:a7c449cd2d5a | 21 | * |
guilhemMBED | 0:a7c449cd2d5a | 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
guilhemMBED | 0:a7c449cd2d5a | 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
guilhemMBED | 0:a7c449cd2d5a | 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
guilhemMBED | 0:a7c449cd2d5a | 25 | * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE |
guilhemMBED | 0:a7c449cd2d5a | 26 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
guilhemMBED | 0:a7c449cd2d5a | 27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
guilhemMBED | 0:a7c449cd2d5a | 28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
guilhemMBED | 0:a7c449cd2d5a | 29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
guilhemMBED | 0:a7c449cd2d5a | 30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
guilhemMBED | 0:a7c449cd2d5a | 31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
guilhemMBED | 0:a7c449cd2d5a | 32 | * POSSIBILITY OF SUCH DAMAGE. |
guilhemMBED | 0:a7c449cd2d5a | 33 | *---------------------------------------------------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 34 | |
guilhemMBED | 0:a7c449cd2d5a | 35 | #include "rt_TypeDef.h" |
guilhemMBED | 0:a7c449cd2d5a | 36 | #include "RTX_Conf.h" |
guilhemMBED | 0:a7c449cd2d5a | 37 | #include "rt_System.h" |
guilhemMBED | 0:a7c449cd2d5a | 38 | #include "rt_List.h" |
guilhemMBED | 0:a7c449cd2d5a | 39 | #include "rt_Task.h" |
guilhemMBED | 0:a7c449cd2d5a | 40 | #include "rt_Time.h" |
guilhemMBED | 0:a7c449cd2d5a | 41 | #include "rt_HAL_CM.h" |
guilhemMBED | 0:a7c449cd2d5a | 42 | |
guilhemMBED | 0:a7c449cd2d5a | 43 | /*---------------------------------------------------------------------------- |
guilhemMBED | 0:a7c449cd2d5a | 44 | * Global Variables |
guilhemMBED | 0:a7c449cd2d5a | 45 | *---------------------------------------------------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 46 | |
guilhemMBED | 0:a7c449cd2d5a | 47 | /* List head of chained ready tasks */ |
guilhemMBED | 0:a7c449cd2d5a | 48 | struct OS_XCB os_rdy; |
guilhemMBED | 0:a7c449cd2d5a | 49 | /* List head of chained delay tasks */ |
guilhemMBED | 0:a7c449cd2d5a | 50 | struct OS_XCB os_dly; |
guilhemMBED | 0:a7c449cd2d5a | 51 | |
guilhemMBED | 0:a7c449cd2d5a | 52 | |
guilhemMBED | 0:a7c449cd2d5a | 53 | /*---------------------------------------------------------------------------- |
guilhemMBED | 0:a7c449cd2d5a | 54 | * Functions |
guilhemMBED | 0:a7c449cd2d5a | 55 | *---------------------------------------------------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 56 | |
guilhemMBED | 0:a7c449cd2d5a | 57 | |
guilhemMBED | 0:a7c449cd2d5a | 58 | /*--------------------------- rt_put_prio -----------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 59 | |
guilhemMBED | 0:a7c449cd2d5a | 60 | void rt_put_prio (P_XCB p_CB, P_TCB p_task) { |
guilhemMBED | 0:a7c449cd2d5a | 61 | /* Put task identified with "p_task" into list ordered by priority. */ |
guilhemMBED | 0:a7c449cd2d5a | 62 | /* "p_CB" points to head of list; list has always an element at end with */ |
guilhemMBED | 0:a7c449cd2d5a | 63 | /* a priority less than "p_task->prio". */ |
guilhemMBED | 0:a7c449cd2d5a | 64 | P_TCB p_CB2; |
guilhemMBED | 0:a7c449cd2d5a | 65 | U32 prio; |
guilhemMBED | 0:a7c449cd2d5a | 66 | BOOL sem_mbx = __FALSE; |
guilhemMBED | 0:a7c449cd2d5a | 67 | |
guilhemMBED | 0:a7c449cd2d5a | 68 | if (p_CB->cb_type == SCB || p_CB->cb_type == MCB || p_CB->cb_type == MUCB) { |
guilhemMBED | 0:a7c449cd2d5a | 69 | sem_mbx = __TRUE; |
guilhemMBED | 0:a7c449cd2d5a | 70 | } |
guilhemMBED | 0:a7c449cd2d5a | 71 | prio = p_task->prio; |
guilhemMBED | 0:a7c449cd2d5a | 72 | p_CB2 = p_CB->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 73 | /* Search for an entry in the list */ |
guilhemMBED | 0:a7c449cd2d5a | 74 | while (p_CB2 != NULL && prio <= p_CB2->prio) { |
guilhemMBED | 0:a7c449cd2d5a | 75 | p_CB = (P_XCB)p_CB2; |
guilhemMBED | 0:a7c449cd2d5a | 76 | p_CB2 = p_CB2->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 77 | } |
guilhemMBED | 0:a7c449cd2d5a | 78 | /* Entry found, insert the task into the list */ |
guilhemMBED | 0:a7c449cd2d5a | 79 | p_task->p_lnk = p_CB2; |
guilhemMBED | 0:a7c449cd2d5a | 80 | p_CB->p_lnk = p_task; |
guilhemMBED | 0:a7c449cd2d5a | 81 | if (sem_mbx) { |
guilhemMBED | 0:a7c449cd2d5a | 82 | if (p_CB2 != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 83 | p_CB2->p_rlnk = p_task; |
guilhemMBED | 0:a7c449cd2d5a | 84 | } |
guilhemMBED | 0:a7c449cd2d5a | 85 | p_task->p_rlnk = (P_TCB)p_CB; |
guilhemMBED | 0:a7c449cd2d5a | 86 | } |
guilhemMBED | 0:a7c449cd2d5a | 87 | else { |
guilhemMBED | 0:a7c449cd2d5a | 88 | p_task->p_rlnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 89 | } |
guilhemMBED | 0:a7c449cd2d5a | 90 | } |
guilhemMBED | 0:a7c449cd2d5a | 91 | |
guilhemMBED | 0:a7c449cd2d5a | 92 | |
guilhemMBED | 0:a7c449cd2d5a | 93 | /*--------------------------- rt_get_first ----------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 94 | |
guilhemMBED | 0:a7c449cd2d5a | 95 | P_TCB rt_get_first (P_XCB p_CB) { |
guilhemMBED | 0:a7c449cd2d5a | 96 | /* Get task at head of list: it is the task with highest priority. */ |
guilhemMBED | 0:a7c449cd2d5a | 97 | /* "p_CB" points to head of list. */ |
guilhemMBED | 0:a7c449cd2d5a | 98 | P_TCB p_first; |
guilhemMBED | 0:a7c449cd2d5a | 99 | |
guilhemMBED | 0:a7c449cd2d5a | 100 | p_first = p_CB->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 101 | p_CB->p_lnk = p_first->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 102 | if (p_CB->cb_type == SCB || p_CB->cb_type == MCB || p_CB->cb_type == MUCB) { |
guilhemMBED | 0:a7c449cd2d5a | 103 | if (p_first->p_lnk != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 104 | p_first->p_lnk->p_rlnk = (P_TCB)p_CB; |
guilhemMBED | 0:a7c449cd2d5a | 105 | p_first->p_lnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 106 | } |
guilhemMBED | 0:a7c449cd2d5a | 107 | p_first->p_rlnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 108 | } |
guilhemMBED | 0:a7c449cd2d5a | 109 | else { |
guilhemMBED | 0:a7c449cd2d5a | 110 | p_first->p_lnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 111 | } |
guilhemMBED | 0:a7c449cd2d5a | 112 | return (p_first); |
guilhemMBED | 0:a7c449cd2d5a | 113 | } |
guilhemMBED | 0:a7c449cd2d5a | 114 | |
guilhemMBED | 0:a7c449cd2d5a | 115 | |
guilhemMBED | 0:a7c449cd2d5a | 116 | /*--------------------------- rt_put_rdy_first ------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 117 | |
guilhemMBED | 0:a7c449cd2d5a | 118 | void rt_put_rdy_first (P_TCB p_task) { |
guilhemMBED | 0:a7c449cd2d5a | 119 | /* Put task identified with "p_task" at the head of the ready list. The */ |
guilhemMBED | 0:a7c449cd2d5a | 120 | /* task must have at least a priority equal to highest priority in list. */ |
guilhemMBED | 0:a7c449cd2d5a | 121 | p_task->p_lnk = os_rdy.p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 122 | p_task->p_rlnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 123 | os_rdy.p_lnk = p_task; |
guilhemMBED | 0:a7c449cd2d5a | 124 | } |
guilhemMBED | 0:a7c449cd2d5a | 125 | |
guilhemMBED | 0:a7c449cd2d5a | 126 | |
guilhemMBED | 0:a7c449cd2d5a | 127 | /*--------------------------- rt_get_same_rdy_prio --------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 128 | |
guilhemMBED | 0:a7c449cd2d5a | 129 | P_TCB rt_get_same_rdy_prio (void) { |
guilhemMBED | 0:a7c449cd2d5a | 130 | /* Remove a task of same priority from ready list if any exists. Other- */ |
guilhemMBED | 0:a7c449cd2d5a | 131 | /* wise return NULL. */ |
guilhemMBED | 0:a7c449cd2d5a | 132 | P_TCB p_first; |
guilhemMBED | 0:a7c449cd2d5a | 133 | |
guilhemMBED | 0:a7c449cd2d5a | 134 | p_first = os_rdy.p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 135 | if (p_first->prio == os_tsk.run->prio) { |
guilhemMBED | 0:a7c449cd2d5a | 136 | os_rdy.p_lnk = os_rdy.p_lnk->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 137 | return (p_first); |
guilhemMBED | 0:a7c449cd2d5a | 138 | } |
guilhemMBED | 0:a7c449cd2d5a | 139 | return (NULL); |
guilhemMBED | 0:a7c449cd2d5a | 140 | } |
guilhemMBED | 0:a7c449cd2d5a | 141 | |
guilhemMBED | 0:a7c449cd2d5a | 142 | |
guilhemMBED | 0:a7c449cd2d5a | 143 | /*--------------------------- rt_resort_prio --------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 144 | |
guilhemMBED | 0:a7c449cd2d5a | 145 | void rt_resort_prio (P_TCB p_task) { |
guilhemMBED | 0:a7c449cd2d5a | 146 | /* Re-sort ordered lists after the priority of 'p_task' has changed. */ |
guilhemMBED | 0:a7c449cd2d5a | 147 | P_TCB p_CB; |
guilhemMBED | 0:a7c449cd2d5a | 148 | |
guilhemMBED | 0:a7c449cd2d5a | 149 | if (p_task->p_rlnk == NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 150 | if (p_task->state == READY) { |
guilhemMBED | 0:a7c449cd2d5a | 151 | /* Task is chained into READY list. */ |
guilhemMBED | 0:a7c449cd2d5a | 152 | p_CB = (P_TCB)&os_rdy; |
guilhemMBED | 0:a7c449cd2d5a | 153 | goto res; |
guilhemMBED | 0:a7c449cd2d5a | 154 | } |
guilhemMBED | 0:a7c449cd2d5a | 155 | } |
guilhemMBED | 0:a7c449cd2d5a | 156 | else { |
guilhemMBED | 0:a7c449cd2d5a | 157 | p_CB = p_task->p_rlnk; |
guilhemMBED | 0:a7c449cd2d5a | 158 | while (p_CB->cb_type == TCB) { |
guilhemMBED | 0:a7c449cd2d5a | 159 | /* Find a header of this task chain list. */ |
guilhemMBED | 0:a7c449cd2d5a | 160 | p_CB = p_CB->p_rlnk; |
guilhemMBED | 0:a7c449cd2d5a | 161 | } |
guilhemMBED | 0:a7c449cd2d5a | 162 | res:rt_rmv_list (p_task); |
guilhemMBED | 0:a7c449cd2d5a | 163 | rt_put_prio ((P_XCB)p_CB, p_task); |
guilhemMBED | 0:a7c449cd2d5a | 164 | } |
guilhemMBED | 0:a7c449cd2d5a | 165 | } |
guilhemMBED | 0:a7c449cd2d5a | 166 | |
guilhemMBED | 0:a7c449cd2d5a | 167 | |
guilhemMBED | 0:a7c449cd2d5a | 168 | /*--------------------------- rt_put_dly ------------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 169 | |
guilhemMBED | 0:a7c449cd2d5a | 170 | void rt_put_dly (P_TCB p_task, U16 delay) { |
guilhemMBED | 0:a7c449cd2d5a | 171 | /* Put a task identified with "p_task" into chained delay wait list using */ |
guilhemMBED | 0:a7c449cd2d5a | 172 | /* a delay value of "delay". */ |
guilhemMBED | 0:a7c449cd2d5a | 173 | P_TCB p; |
guilhemMBED | 0:a7c449cd2d5a | 174 | U32 delta,idelay = delay; |
guilhemMBED | 0:a7c449cd2d5a | 175 | |
guilhemMBED | 0:a7c449cd2d5a | 176 | p = (P_TCB)&os_dly; |
guilhemMBED | 0:a7c449cd2d5a | 177 | if (p->p_dlnk == NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 178 | /* Delay list empty */ |
guilhemMBED | 0:a7c449cd2d5a | 179 | delta = 0; |
guilhemMBED | 0:a7c449cd2d5a | 180 | goto last; |
guilhemMBED | 0:a7c449cd2d5a | 181 | } |
guilhemMBED | 0:a7c449cd2d5a | 182 | delta = os_dly.delta_time; |
guilhemMBED | 0:a7c449cd2d5a | 183 | while (delta < idelay) { |
guilhemMBED | 0:a7c449cd2d5a | 184 | if (p->p_dlnk == NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 185 | /* End of list found */ |
guilhemMBED | 0:a7c449cd2d5a | 186 | last: p_task->p_dlnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 187 | p->p_dlnk = p_task; |
guilhemMBED | 0:a7c449cd2d5a | 188 | p_task->p_blnk = p; |
guilhemMBED | 0:a7c449cd2d5a | 189 | p->delta_time = (U16)(idelay - delta); |
guilhemMBED | 0:a7c449cd2d5a | 190 | p_task->delta_time = 0; |
guilhemMBED | 0:a7c449cd2d5a | 191 | return; |
guilhemMBED | 0:a7c449cd2d5a | 192 | } |
guilhemMBED | 0:a7c449cd2d5a | 193 | p = p->p_dlnk; |
guilhemMBED | 0:a7c449cd2d5a | 194 | delta += p->delta_time; |
guilhemMBED | 0:a7c449cd2d5a | 195 | } |
guilhemMBED | 0:a7c449cd2d5a | 196 | /* Right place found */ |
guilhemMBED | 0:a7c449cd2d5a | 197 | p_task->p_dlnk = p->p_dlnk; |
guilhemMBED | 0:a7c449cd2d5a | 198 | p->p_dlnk = p_task; |
guilhemMBED | 0:a7c449cd2d5a | 199 | p_task->p_blnk = p; |
guilhemMBED | 0:a7c449cd2d5a | 200 | if (p_task->p_dlnk != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 201 | p_task->p_dlnk->p_blnk = p_task; |
guilhemMBED | 0:a7c449cd2d5a | 202 | } |
guilhemMBED | 0:a7c449cd2d5a | 203 | p_task->delta_time = (U16)(delta - idelay); |
guilhemMBED | 0:a7c449cd2d5a | 204 | p->delta_time -= p_task->delta_time; |
guilhemMBED | 0:a7c449cd2d5a | 205 | } |
guilhemMBED | 0:a7c449cd2d5a | 206 | |
guilhemMBED | 0:a7c449cd2d5a | 207 | |
guilhemMBED | 0:a7c449cd2d5a | 208 | /*--------------------------- rt_dec_dly ------------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 209 | |
guilhemMBED | 0:a7c449cd2d5a | 210 | void rt_dec_dly (void) { |
guilhemMBED | 0:a7c449cd2d5a | 211 | /* Decrement delta time of list head: remove tasks having a value of zero.*/ |
guilhemMBED | 0:a7c449cd2d5a | 212 | P_TCB p_rdy; |
guilhemMBED | 0:a7c449cd2d5a | 213 | |
guilhemMBED | 0:a7c449cd2d5a | 214 | if (os_dly.p_dlnk == NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 215 | return; |
guilhemMBED | 0:a7c449cd2d5a | 216 | } |
guilhemMBED | 0:a7c449cd2d5a | 217 | os_dly.delta_time--; |
guilhemMBED | 0:a7c449cd2d5a | 218 | while ((os_dly.delta_time == 0) && (os_dly.p_dlnk != NULL)) { |
guilhemMBED | 0:a7c449cd2d5a | 219 | p_rdy = os_dly.p_dlnk; |
guilhemMBED | 0:a7c449cd2d5a | 220 | if (p_rdy->p_rlnk != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 221 | /* Task is really enqueued, remove task from semaphore/mailbox */ |
guilhemMBED | 0:a7c449cd2d5a | 222 | /* timeout waiting list. */ |
guilhemMBED | 0:a7c449cd2d5a | 223 | p_rdy->p_rlnk->p_lnk = p_rdy->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 224 | if (p_rdy->p_lnk != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 225 | p_rdy->p_lnk->p_rlnk = p_rdy->p_rlnk; |
guilhemMBED | 0:a7c449cd2d5a | 226 | p_rdy->p_lnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 227 | } |
guilhemMBED | 0:a7c449cd2d5a | 228 | p_rdy->p_rlnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 229 | } |
guilhemMBED | 0:a7c449cd2d5a | 230 | rt_put_prio (&os_rdy, p_rdy); |
guilhemMBED | 0:a7c449cd2d5a | 231 | os_dly.delta_time = p_rdy->delta_time; |
guilhemMBED | 0:a7c449cd2d5a | 232 | if (p_rdy->state == WAIT_ITV) { |
guilhemMBED | 0:a7c449cd2d5a | 233 | /* Calculate the next time for interval wait. */ |
guilhemMBED | 0:a7c449cd2d5a | 234 | p_rdy->delta_time = p_rdy->interval_time + (U16)os_time; |
guilhemMBED | 0:a7c449cd2d5a | 235 | } |
guilhemMBED | 0:a7c449cd2d5a | 236 | p_rdy->state = READY; |
guilhemMBED | 0:a7c449cd2d5a | 237 | os_dly.p_dlnk = p_rdy->p_dlnk; |
guilhemMBED | 0:a7c449cd2d5a | 238 | if (p_rdy->p_dlnk != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 239 | p_rdy->p_dlnk->p_blnk = (P_TCB)&os_dly; |
guilhemMBED | 0:a7c449cd2d5a | 240 | p_rdy->p_dlnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 241 | } |
guilhemMBED | 0:a7c449cd2d5a | 242 | p_rdy->p_blnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 243 | } |
guilhemMBED | 0:a7c449cd2d5a | 244 | } |
guilhemMBED | 0:a7c449cd2d5a | 245 | |
guilhemMBED | 0:a7c449cd2d5a | 246 | |
guilhemMBED | 0:a7c449cd2d5a | 247 | /*--------------------------- rt_rmv_list -----------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 248 | |
guilhemMBED | 0:a7c449cd2d5a | 249 | void rt_rmv_list (P_TCB p_task) { |
guilhemMBED | 0:a7c449cd2d5a | 250 | /* Remove task identified with "p_task" from ready, semaphore or mailbox */ |
guilhemMBED | 0:a7c449cd2d5a | 251 | /* waiting list if enqueued. */ |
guilhemMBED | 0:a7c449cd2d5a | 252 | P_TCB p_b; |
guilhemMBED | 0:a7c449cd2d5a | 253 | |
guilhemMBED | 0:a7c449cd2d5a | 254 | if (p_task->p_rlnk != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 255 | /* A task is enqueued in semaphore / mailbox waiting list. */ |
guilhemMBED | 0:a7c449cd2d5a | 256 | p_task->p_rlnk->p_lnk = p_task->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 257 | if (p_task->p_lnk != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 258 | p_task->p_lnk->p_rlnk = p_task->p_rlnk; |
guilhemMBED | 0:a7c449cd2d5a | 259 | } |
guilhemMBED | 0:a7c449cd2d5a | 260 | return; |
guilhemMBED | 0:a7c449cd2d5a | 261 | } |
guilhemMBED | 0:a7c449cd2d5a | 262 | |
guilhemMBED | 0:a7c449cd2d5a | 263 | p_b = (P_TCB)&os_rdy; |
guilhemMBED | 0:a7c449cd2d5a | 264 | while (p_b != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 265 | /* Search the ready list for task "p_task" */ |
guilhemMBED | 0:a7c449cd2d5a | 266 | if (p_b->p_lnk == p_task) { |
guilhemMBED | 0:a7c449cd2d5a | 267 | p_b->p_lnk = p_task->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 268 | return; |
guilhemMBED | 0:a7c449cd2d5a | 269 | } |
guilhemMBED | 0:a7c449cd2d5a | 270 | p_b = p_b->p_lnk; |
guilhemMBED | 0:a7c449cd2d5a | 271 | } |
guilhemMBED | 0:a7c449cd2d5a | 272 | } |
guilhemMBED | 0:a7c449cd2d5a | 273 | |
guilhemMBED | 0:a7c449cd2d5a | 274 | |
guilhemMBED | 0:a7c449cd2d5a | 275 | /*--------------------------- rt_rmv_dly ------------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 276 | |
guilhemMBED | 0:a7c449cd2d5a | 277 | void rt_rmv_dly (P_TCB p_task) { |
guilhemMBED | 0:a7c449cd2d5a | 278 | /* Remove task identified with "p_task" from delay list if enqueued. */ |
guilhemMBED | 0:a7c449cd2d5a | 279 | P_TCB p_b; |
guilhemMBED | 0:a7c449cd2d5a | 280 | |
guilhemMBED | 0:a7c449cd2d5a | 281 | p_b = p_task->p_blnk; |
guilhemMBED | 0:a7c449cd2d5a | 282 | if (p_b != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 283 | /* Task is really enqueued */ |
guilhemMBED | 0:a7c449cd2d5a | 284 | p_b->p_dlnk = p_task->p_dlnk; |
guilhemMBED | 0:a7c449cd2d5a | 285 | if (p_task->p_dlnk != NULL) { |
guilhemMBED | 0:a7c449cd2d5a | 286 | /* 'p_task' is in the middle of list */ |
guilhemMBED | 0:a7c449cd2d5a | 287 | p_b->delta_time += p_task->delta_time; |
guilhemMBED | 0:a7c449cd2d5a | 288 | p_task->p_dlnk->p_blnk = p_b; |
guilhemMBED | 0:a7c449cd2d5a | 289 | p_task->p_dlnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 290 | } |
guilhemMBED | 0:a7c449cd2d5a | 291 | else { |
guilhemMBED | 0:a7c449cd2d5a | 292 | /* 'p_task' is at the end of list */ |
guilhemMBED | 0:a7c449cd2d5a | 293 | p_b->delta_time = 0; |
guilhemMBED | 0:a7c449cd2d5a | 294 | } |
guilhemMBED | 0:a7c449cd2d5a | 295 | p_task->p_blnk = NULL; |
guilhemMBED | 0:a7c449cd2d5a | 296 | } |
guilhemMBED | 0:a7c449cd2d5a | 297 | } |
guilhemMBED | 0:a7c449cd2d5a | 298 | |
guilhemMBED | 0:a7c449cd2d5a | 299 | |
guilhemMBED | 0:a7c449cd2d5a | 300 | /*--------------------------- rt_psq_enq ------------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 301 | |
guilhemMBED | 0:a7c449cd2d5a | 302 | void rt_psq_enq (OS_ID entry, U32 arg) { |
guilhemMBED | 0:a7c449cd2d5a | 303 | /* Insert post service request "entry" into ps-queue. */ |
guilhemMBED | 0:a7c449cd2d5a | 304 | U32 idx; |
guilhemMBED | 0:a7c449cd2d5a | 305 | |
guilhemMBED | 0:a7c449cd2d5a | 306 | idx = rt_inc_qi (os_psq->size, &os_psq->count, &os_psq->first); |
guilhemMBED | 0:a7c449cd2d5a | 307 | if (idx < os_psq->size) { |
guilhemMBED | 0:a7c449cd2d5a | 308 | os_psq->q[idx].id = entry; |
guilhemMBED | 0:a7c449cd2d5a | 309 | os_psq->q[idx].arg = arg; |
guilhemMBED | 0:a7c449cd2d5a | 310 | } |
guilhemMBED | 0:a7c449cd2d5a | 311 | else { |
guilhemMBED | 0:a7c449cd2d5a | 312 | os_error (OS_ERR_FIFO_OVF); |
guilhemMBED | 0:a7c449cd2d5a | 313 | } |
guilhemMBED | 0:a7c449cd2d5a | 314 | } |
guilhemMBED | 0:a7c449cd2d5a | 315 | |
guilhemMBED | 0:a7c449cd2d5a | 316 | |
guilhemMBED | 0:a7c449cd2d5a | 317 | /*---------------------------------------------------------------------------- |
guilhemMBED | 0:a7c449cd2d5a | 318 | * end of file |
guilhemMBED | 0:a7c449cd2d5a | 319 | *---------------------------------------------------------------------------*/ |
guilhemMBED | 0:a7c449cd2d5a | 320 |