LCOV - code coverage report
Current view: top level - src/tests/api - api-threadmessage-test.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 88 105 83.8 %
Date: 2017-09-20 05:29:53 Functions: 5 5 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Permission is hereby granted, free of charge, to any person obtaining a copy
       3             :  * of this software and associated documentation files (the "Software"), to deal
       4             :  * in the Software without restriction, including without limitation the rights
       5             :  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       6             :  * copies of the Software, and to permit persons to whom the Software is
       7             :  * furnished to do so, subject to the following conditions:
       8             :  *
       9             :  * The above copyright notice and this permission notice shall be included in
      10             :  * all copies or substantial portions of the Software.
      11             :  *
      12             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      13             :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      14             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      15             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      16             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      17             :  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      18             :  * THE SOFTWARE.
      19             :  */
      20             : 
      21             : /**
      22             :  * Thread message API test
      23             :  */
      24             : 
      25             : #include "libavutil/avassert.h"
      26             : #include "libavutil/avstring.h"
      27             : #include "libavutil/frame.h"
      28             : #include "libavutil/threadmessage.h"
      29             : #include "libavutil/thread.h" // not public
      30             : 
      31             : struct sender_data {
      32             :     int id;
      33             :     pthread_t tid;
      34             :     int workload;
      35             :     AVThreadMessageQueue *queue;
      36             : };
      37             : 
      38             : /* same as sender_data but shuffled for testing purpose */
      39             : struct receiver_data {
      40             :     pthread_t tid;
      41             :     int workload;
      42             :     int id;
      43             :     AVThreadMessageQueue *queue;
      44             : };
      45             : 
      46             : struct message {
      47             :     AVFrame *frame;
      48             :     // we add some junk in the message to make sure the message size is >
      49             :     // sizeof(void*)
      50             :     int magic;
      51             : };
      52             : 
      53             : #define MAGIC 0xdeadc0de
      54             : 
      55          12 : static void free_frame(void *arg)
      56             : {
      57          12 :     struct message *msg = arg;
      58          12 :     av_assert0(msg->magic == MAGIC);
      59          12 :     av_frame_free(&msg->frame);
      60          12 : }
      61             : 
      62          10 : static void *sender_thread(void *arg)
      63             : {
      64          10 :     int i, ret = 0;
      65          10 :     struct sender_data *wd = arg;
      66             : 
      67          10 :     av_log(NULL, AV_LOG_INFO, "sender #%d: workload=%d\n", wd->id, wd->workload);
      68          64 :     for (i = 0; i < wd->workload; i++) {
      69          64 :         if (rand() % wd->workload < wd->workload / 10) {
      70           5 :             av_log(NULL, AV_LOG_INFO, "sender #%d: flushing the queue\n", wd->id);
      71           5 :             av_thread_message_flush(wd->queue);
      72             :         } else {
      73             :             char *val;
      74          59 :             AVDictionary *meta = NULL;
      75          59 :             struct message msg = {
      76             :                 .magic = MAGIC,
      77          59 :                 .frame = av_frame_alloc(),
      78             :             };
      79             : 
      80          59 :             if (!msg.frame) {
      81           0 :                 ret = AVERROR(ENOMEM);
      82          10 :                 break;
      83             :             }
      84             : 
      85             :             /* we add some metadata to identify the frames */
      86          59 :             val = av_asprintf("frame %d/%d from sender %d",
      87             :                               i + 1, wd->workload, wd->id);
      88          59 :             if (!val) {
      89           0 :                 av_frame_free(&msg.frame);
      90           0 :                 ret = AVERROR(ENOMEM);
      91           0 :                 break;
      92             :             }
      93          59 :             ret = av_dict_set(&meta, "sig", val, AV_DICT_DONT_STRDUP_VAL);
      94          59 :             if (ret < 0) {
      95           0 :                 av_frame_free(&msg.frame);
      96           0 :                 break;
      97             :             }
      98          59 :             msg.frame->metadata = meta;
      99             : 
     100             :             /* allocate a real frame in order to simulate "real" work */
     101          59 :             msg.frame->format = AV_PIX_FMT_RGBA;
     102          59 :             msg.frame->width  = 320;
     103          59 :             msg.frame->height = 240;
     104          59 :             ret = av_frame_get_buffer(msg.frame, 32);
     105          59 :             if (ret < 0) {
     106           0 :                 av_frame_free(&msg.frame);
     107           0 :                 break;
     108             :             }
     109             : 
     110             :             /* push the frame in the common queue */
     111          59 :             av_log(NULL, AV_LOG_INFO, "sender #%d: sending my work (%d/%d frame:%p)\n",
     112             :                    wd->id, i + 1, wd->workload, msg.frame);
     113          59 :             ret = av_thread_message_queue_send(wd->queue, &msg, 0);
     114          59 :             if (ret < 0) {
     115          10 :                 av_frame_free(&msg.frame);
     116          10 :                 break;
     117             :             }
     118             :         }
     119             :     }
     120          10 :     av_log(NULL, AV_LOG_INFO, "sender #%d: my work is done here (%s)\n",
     121          10 :            wd->id, av_err2str(ret));
     122          10 :     av_thread_message_queue_set_err_recv(wd->queue, ret < 0 ? ret : AVERROR_EOF);
     123          10 :     return NULL;
     124             : }
     125             : 
     126           2 : static void *receiver_thread(void *arg)
     127             : {
     128           2 :     int i, ret = 0;
     129           2 :     struct receiver_data *rd = arg;
     130             : 
     131          40 :     for (i = 0; i < rd->workload; i++) {
     132          39 :         if (rand() % rd->workload < rd->workload / 10) {
     133           1 :             av_log(NULL, AV_LOG_INFO, "receiver #%d: flushing the queue\n", rd->id);
     134           1 :             av_thread_message_flush(rd->queue);
     135             :         } else {
     136             :             struct message msg;
     137             :             AVDictionary *meta;
     138             :             AVDictionaryEntry *e;
     139             : 
     140          38 :             ret = av_thread_message_queue_recv(rd->queue, &msg, 0);
     141          38 :             if (ret < 0)
     142           1 :                 break;
     143          37 :             av_assert0(msg.magic == MAGIC);
     144          37 :             meta = msg.frame->metadata;
     145          37 :             e = av_dict_get(meta, "sig", NULL, 0);
     146          37 :             av_log(NULL, AV_LOG_INFO, "got \"%s\" (%p)\n", e->value, msg.frame);
     147          37 :             av_frame_free(&msg.frame);
     148             :         }
     149             :     }
     150             : 
     151           2 :     av_log(NULL, AV_LOG_INFO, "consumed enough (%d), stop\n", i);
     152           2 :     av_thread_message_queue_set_err_send(rd->queue, ret < 0 ? ret : AVERROR_EOF);
     153             : 
     154           2 :     return NULL;
     155             : }
     156             : 
     157          12 : static int get_workload(int minv, int maxv)
     158             : {
     159          12 :     return maxv == minv ? maxv : rand() % (maxv - minv) + minv;
     160             : }
     161             : 
     162           1 : int main(int ac, char **av)
     163             : {
     164           1 :     int i, ret = 0;
     165             :     int max_queue_size;
     166             :     int nb_senders, sender_min_load, sender_max_load;
     167             :     int nb_receivers, receiver_min_load, receiver_max_load;
     168             :     struct sender_data *senders;
     169             :     struct receiver_data *receivers;
     170           1 :     AVThreadMessageQueue *queue = NULL;
     171             : 
     172           1 :     if (ac != 8) {
     173           0 :         av_log(NULL, AV_LOG_ERROR, "%s <max_queue_size> "
     174             :                "<nb_senders> <sender_min_send> <sender_max_send> "
     175             :                "<nb_receivers> <receiver_min_recv> <receiver_max_recv>\n", av[0]);
     176           0 :         return 1;
     177             :     }
     178             : 
     179           1 :     max_queue_size    = atoi(av[1]);
     180           1 :     nb_senders        = atoi(av[2]);
     181           1 :     sender_min_load   = atoi(av[3]);
     182           1 :     sender_max_load   = atoi(av[4]);
     183           1 :     nb_receivers      = atoi(av[5]);
     184           1 :     receiver_min_load = atoi(av[6]);
     185           1 :     receiver_max_load = atoi(av[7]);
     186             : 
     187           1 :     if (max_queue_size <= 0 ||
     188           1 :         nb_senders <= 0 || sender_min_load <= 0 || sender_max_load <= 0 ||
     189           1 :         nb_receivers <= 0 || receiver_min_load <= 0 || receiver_max_load <= 0) {
     190           0 :         av_log(NULL, AV_LOG_ERROR, "negative values not allowed\n");
     191           0 :         return 1;
     192             :     }
     193             : 
     194           1 :     av_log(NULL, AV_LOG_INFO, "qsize:%d / %d senders sending [%d-%d] / "
     195             :            "%d receivers receiving [%d-%d]\n", max_queue_size,
     196             :            nb_senders, sender_min_load, sender_max_load,
     197             :            nb_receivers, receiver_min_load, receiver_max_load);
     198             : 
     199           1 :     senders = av_mallocz_array(nb_senders, sizeof(*senders));
     200           1 :     receivers = av_mallocz_array(nb_receivers, sizeof(*receivers));
     201           1 :     if (!senders || !receivers) {
     202           0 :         ret = AVERROR(ENOMEM);
     203           0 :         goto end;
     204             :     }
     205             : 
     206           1 :     ret = av_thread_message_queue_alloc(&queue, max_queue_size, sizeof(struct message));
     207           1 :     if (ret < 0)
     208           0 :         goto end;
     209             : 
     210           1 :     av_thread_message_queue_set_free_func(queue, free_frame);
     211             : 
     212             : #define SPAWN_THREADS(type) do {                                                \
     213             :     for (i = 0; i < nb_##type##s; i++) {                                        \
     214             :         struct type##_data *td = &type##s[i];                                   \
     215             :                                                                                 \
     216             :         td->id = i;                                                             \
     217             :         td->queue = queue;                                                      \
     218             :         td->workload = get_workload(type##_min_load, type##_max_load);          \
     219             :                                                                                 \
     220             :         ret = pthread_create(&td->tid, NULL, type##_thread, td);                \
     221             :         if (ret) {                                                              \
     222             :             const int err = AVERROR(ret);                                       \
     223             :             av_log(NULL, AV_LOG_ERROR, "Unable to start " AV_STRINGIFY(type)    \
     224             :                    " thread: %s\n", av_err2str(err));                           \
     225             :             goto end;                                                           \
     226             :         }                                                                       \
     227             :     }                                                                           \
     228             : } while (0)
     229             : 
     230             : #define WAIT_THREADS(type) do {                                                 \
     231             :     for (i = 0; i < nb_##type##s; i++) {                                        \
     232             :         struct type##_data *td = &type##s[i];                                   \
     233             :                                                                                 \
     234             :         ret = pthread_join(td->tid, NULL);                                      \
     235             :         if (ret) {                                                              \
     236             :             const int err = AVERROR(ret);                                       \
     237             :             av_log(NULL, AV_LOG_ERROR, "Unable to join " AV_STRINGIFY(type)     \
     238             :                    " thread: %s\n", av_err2str(err));                           \
     239             :             goto end;                                                           \
     240             :         }                                                                       \
     241             :     }                                                                           \
     242             : } while (0)
     243             : 
     244           1 :     SPAWN_THREADS(receiver);
     245           1 :     SPAWN_THREADS(sender);
     246             : 
     247           1 :     WAIT_THREADS(sender);
     248           1 :     WAIT_THREADS(receiver);
     249             : 
     250           1 : end:
     251           1 :     av_thread_message_queue_free(&queue);
     252           1 :     av_freep(&senders);
     253           1 :     av_freep(&receivers);
     254             : 
     255           1 :     if (ret < 0 && ret != AVERROR_EOF) {
     256           0 :         av_log(NULL, AV_LOG_ERROR, "Error: %s\n", av_err2str(ret));
     257           0 :         return 1;
     258             :     }
     259           1 :     return 0;
     260             : }

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