Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2015 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ***************************************************************************** |
| 18 | * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| 19 | */ |
| 20 | /*****************************************************************************/ |
| 21 | /* */ |
| 22 | /* File Name : ithread.c */ |
| 23 | /* */ |
| 24 | /* Description : Contains abstraction for threads, mutex and semaphores*/ |
| 25 | /* */ |
| 26 | /* List of Functions : */ |
| 27 | /* */ |
| 28 | /* Issues / Problems : None */ |
| 29 | /* */ |
| 30 | /* Revision History : */ |
| 31 | /* */ |
| 32 | /* DD MM YYYY Author(s) Changes */ |
| 33 | /* 07 09 2012 Harish Initial Version */ |
| 34 | /*****************************************************************************/ |
| 35 | /*****************************************************************************/ |
| 36 | /* File Includes */ |
| 37 | /*****************************************************************************/ |
| 38 | #include <string.h> |
| 39 | #include "ih264_typedefs.h" |
| 40 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 41 | |
| 42 | |
| 43 | #include "ithread.h" |
| 44 | #include <sys/types.h> |
| 45 | |
| 46 | |
| 47 | #define UNUSED(x) ((void)(x)) |
| 48 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 49 | //#define PTHREAD_AFFINITY |
| 50 | //#define SYSCALL_AFFINITY |
| 51 | |
| 52 | #ifdef PTHREAD_AFFINITY |
| 53 | #define _GNU_SOURCE |
| 54 | #define __USE_GNU |
| 55 | #endif |
| 56 | |
| 57 | #include <pthread.h> |
| 58 | #include <sched.h> |
| 59 | #include <semaphore.h> |
| 60 | #include <unistd.h> |
| 61 | #ifdef PTHREAD_AFFINITY |
| 62 | #include <sys/prctl.h> |
| 63 | #endif |
| 64 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 65 | |
| 66 | UWORD32 ithread_get_handle_size(void) |
| 67 | { |
| 68 | return sizeof(pthread_t); |
| 69 | } |
| 70 | |
| 71 | UWORD32 ithread_get_mutex_lock_size(void) |
| 72 | { |
| 73 | return sizeof(pthread_mutex_t); |
| 74 | } |
| 75 | |
| 76 | |
| 77 | WORD32 ithread_create(void *thread_handle, void *attribute, void *strt, void *argument) |
| 78 | { |
| 79 | UNUSED(attribute); |
| 80 | return pthread_create((pthread_t *)thread_handle, NULL,(void *(*)(void *)) strt, argument); |
| 81 | } |
| 82 | |
| 83 | WORD32 ithread_join(void *thread_handle, void ** val_ptr) |
| 84 | { |
| 85 | UNUSED(val_ptr); |
| 86 | pthread_t *pthread_handle = (pthread_t *)thread_handle; |
| 87 | return pthread_join(*pthread_handle, NULL); |
| 88 | } |
| 89 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 90 | WORD32 ithread_get_mutex_struct_size(void) |
| 91 | { |
| 92 | return(sizeof(pthread_mutex_t)); |
| 93 | } |
| 94 | WORD32 ithread_mutex_init(void *mutex) |
| 95 | { |
| 96 | return pthread_mutex_init((pthread_mutex_t *) mutex, NULL); |
| 97 | } |
| 98 | |
| 99 | WORD32 ithread_mutex_destroy(void *mutex) |
| 100 | { |
| 101 | return pthread_mutex_destroy((pthread_mutex_t *) mutex); |
| 102 | } |
| 103 | |
| 104 | WORD32 ithread_mutex_lock(void *mutex) |
| 105 | { |
| 106 | return pthread_mutex_lock((pthread_mutex_t *)mutex); |
| 107 | } |
| 108 | |
| 109 | WORD32 ithread_mutex_unlock(void *mutex) |
| 110 | { |
| 111 | return pthread_mutex_unlock((pthread_mutex_t *)mutex); |
| 112 | } |
| 113 | |
| 114 | void ithread_yield(void) |
| 115 | { |
| 116 | sched_yield(); |
| 117 | } |
| 118 | |
| 119 | void ithread_sleep(UWORD32 u4_time) |
| 120 | { |
| 121 | usleep(u4_time * 1000 * 1000); |
| 122 | } |
| 123 | |
| 124 | void ithread_msleep(UWORD32 u4_time_ms) |
| 125 | { |
| 126 | usleep(u4_time_ms * 1000); |
| 127 | } |
| 128 | |
| 129 | void ithread_usleep(UWORD32 u4_time_us) |
| 130 | { |
| 131 | usleep(u4_time_us); |
| 132 | } |
| 133 | |
| 134 | UWORD32 ithread_get_sem_struct_size(void) |
| 135 | { |
| 136 | return(sizeof(sem_t)); |
| 137 | } |
| 138 | |
| 139 | |
| 140 | WORD32 ithread_sem_init(void *sem,WORD32 pshared,UWORD32 value) |
| 141 | { |
| 142 | return sem_init((sem_t *)sem,pshared,value); |
| 143 | } |
| 144 | |
| 145 | WORD32 ithread_sem_post(void *sem) |
| 146 | { |
| 147 | return sem_post((sem_t *)sem); |
| 148 | } |
| 149 | |
| 150 | |
| 151 | WORD32 ithread_sem_wait(void *sem) |
| 152 | { |
| 153 | return sem_wait((sem_t *)sem); |
| 154 | } |
| 155 | |
| 156 | |
| 157 | WORD32 ithread_sem_destroy(void *sem) |
| 158 | { |
| 159 | return sem_destroy((sem_t *)sem); |
| 160 | } |
| 161 | |
| 162 | void ithread_set_name(CHAR *pc_thread_name) |
| 163 | { |
| 164 | |
| 165 | #ifndef WIN32 |
| 166 | #ifndef QNX |
| 167 | #ifndef IOS |
| 168 | UNUSED(pc_thread_name); |
| 169 | //prctl(PR_SET_NAME, (unsigned long)pu1_thread_name, 0, 0, 0); |
| 170 | #endif |
| 171 | #endif |
| 172 | #endif |
| 173 | |
| 174 | } |
| 175 | WORD32 ithread_set_affinity(WORD32 core_id) |
| 176 | { |
| 177 | #ifdef PTHREAD_AFFINITY |
| 178 | cpu_set_t cpuset; |
| 179 | int num_cores = sysconf(_SC_NPROCESSORS_ONLN); |
| 180 | pthread_t cur_thread = pthread_self(); |
| 181 | |
| 182 | if (core_id >= num_cores) |
| 183 | return -1; |
| 184 | |
| 185 | CPU_ZERO(&cpuset); |
| 186 | CPU_SET(core_id, &cpuset); |
| 187 | |
| 188 | return pthread_setaffinity_np(cur_thread, sizeof(cpu_set_t), &cpuset); |
| 189 | |
| 190 | #elif SYSCALL_AFFINITY |
| 191 | WORD32 i4_sys_res; |
| 192 | UNUSED(core_id); |
| 193 | |
| 194 | pid_t pid = gettid(); |
| 195 | |
| 196 | |
| 197 | i4_sys_res = syscall(__NR_sched_setaffinity, pid, sizeof(i4_mask), &i4_mask); |
| 198 | if (i4_sys_res) |
| 199 | { |
| 200 | //WORD32 err; |
| 201 | //err = errno; |
| 202 | //perror("Error in setaffinity syscall PERROR : "); |
| 203 | //LOG_ERROR("Error in the syscall setaffinity: mask=0x%x err=0x%x", i4_mask, i4_sys_res); |
| 204 | return -1; |
| 205 | } |
| 206 | #else |
| 207 | UNUSED(core_id); |
| 208 | #endif |
| 209 | return 1; |
| 210 | |
| 211 | } |