1 /* 2 * sync_test.c 3 * 4 * Copyright 2012 Google, Inc 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #include <errno.h> 20 #include <pthread.h> 21 #include <stdio.h> 22 #include <string.h> 23 #include <unistd.h> 24 25 #include <sync/sync.h> 26 27 pthread_mutex_t printf_mutex = PTHREAD_MUTEX_INITIALIZER; 28 29 struct sync_thread_data { 30 int thread_no; 31 int fd[2]; 32 }; 33 34 void *sync_thread(void *data) 35 { 36 struct sync_thread_data *sync_data = data; 37 struct sync_fence_info_data *info; 38 int err; 39 int i; 40 41 for (i = 0; i < 2; i++) { 42 err = sync_wait(sync_data->fd[i], 10000); 43 44 pthread_mutex_lock(&printf_mutex); 45 if (err < 0) { 46 printf("thread %d wait %d failed: %s\n", sync_data->thread_no, 47 i, strerror(errno)); 48 } else { 49 printf("thread %d wait %d done\n", sync_data->thread_no, i); 50 } 51 info = sync_fence_info(sync_data->fd[i]); 52 if (info) { 53 struct sync_pt_info *pt_info = NULL; 54 printf(" fence %s %d\n", info->name, info->status); 55 56 while ((pt_info = sync_pt_info(info, pt_info))) { 57 int ts_sec = pt_info->timestamp_ns / 1000000000LL; 58 int ts_usec = (pt_info->timestamp_ns % 1000000000LL) / 1000LL; 59 printf(" pt %s %s %d %d.%06d", pt_info->obj_name, 60 pt_info->driver_name, pt_info->status, 61 ts_sec, ts_usec); 62 if (!strcmp(pt_info->driver_name, "sw_sync")) 63 printf(" val=%d\n", *(uint32_t *)pt_info->driver_data); 64 else 65 printf("\n"); 66 } 67 sync_fence_info_free(info); 68 } 69 pthread_mutex_unlock(&printf_mutex); 70 } 71 72 return NULL; 73 } 74 75 int main(int argc __attribute__((unused)), char *argv[] __attribute__((unused))) 76 { 77 struct sync_thread_data sync_data[4]; 78 pthread_t threads[4]; 79 int sync_timeline_fd; 80 int i, j; 81 char str[256]; 82 83 sync_timeline_fd = sw_sync_timeline_create(); 84 if (sync_timeline_fd < 0) { 85 perror("can't create sw_sync_timeline:"); 86 return 1; 87 } 88 89 for (i = 0; i < 3; i++) { 90 sync_data[i].thread_no = i; 91 92 for (j = 0; j < 2; j++) { 93 unsigned val = i + j * 3 + 1; 94 sprintf(str, "test_fence%d-%d", i, j); 95 int fd = sw_sync_fence_create(sync_timeline_fd, str, val); 96 if (fd < 0) { 97 printf("can't create sync pt %d: %s", val, strerror(errno)); 98 return 1; 99 } 100 sync_data[i].fd[j] = fd; 101 printf("sync_data[%d].fd[%d] = %d;\n", i, j, fd); 102 103 } 104 } 105 106 sync_data[3].thread_no = 3; 107 for (j = 0; j < 2; j++) { 108 sprintf(str, "merged_fence%d", j); 109 sync_data[3].fd[j] = sync_merge(str, sync_data[0].fd[j], sync_data[1].fd[j]); 110 if (sync_data[3].fd[j] < 0) { 111 printf("can't merge sync pts %d and %d: %s\n", 112 sync_data[0].fd[j], sync_data[1].fd[j], strerror(errno)); 113 return 1; 114 } 115 } 116 117 for (i = 0; i < 4; i++) 118 pthread_create(&threads[i], NULL, sync_thread, &sync_data[i]); 119 120 121 for (i = 0; i < 3; i++) { 122 int err; 123 printf("press enter to inc to %d\n", i+1); 124 fgets(str, sizeof(str), stdin); 125 err = sw_sync_timeline_inc(sync_timeline_fd, 1); 126 if (err < 0) { 127 perror("can't increment sync obj:"); 128 return 1; 129 } 130 } 131 132 printf("press enter to close sync_timeline\n"); 133 fgets(str, sizeof(str), stdin); 134 135 close(sync_timeline_fd); 136 137 printf("press enter to end test\n"); 138 fgets(str, sizeof(str), stdin); 139 140 for (i = 0; i < 3; i++) { 141 void *val; 142 pthread_join(threads[i], &val); 143 } 144 145 return 0; 146 } 147
