Function start_children

ffserver.c:435–495

static void start_children(FFStream *feed)
{
    if (no_launch)
        return;

    for (; feed; feed = feed->next) {
        if (feed->child_argv && !feed->pid) {
            feed->pid_start = time(0);

            feed->pid = fork();

            if (feed->pid < 0) {
                http_log("Unable to create children\n");
                exit(1);
            }
            if (!feed->pid) {
                /* In child */
                char pathname[1024];
                char *slash;
                int i;

                av_strlcpy(pathname, my_program_name, sizeof(pathname));

                slash = strrchr(pathname, '/');
                if (!slash)
                    slash = pathname;
                else
                    slash++;
                strcpy(slash, "ffmpeg");

                http_log("Launch commandline: ");
                http_log("%s ", pathname);
                for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
                    http_log("%s ", feed->child_argv[i]);
                http_log("\n");

                for (i = 3; i < 256; i++)
                    close(i);

                if (!ffserver_debug) {
                    i = open("/dev/null", O_RDWR);
                    if (i != -1) {
                        dup2(i, 0);
                        dup2(i, 1);
                        dup2(i, 2);
                        close(i);
                    }
                }

                /* This is needed to make relative pathnames work */
                chdir(my_program_dir);

                signal(SIGPIPE, SIG_DFL);

                execvp(pathname, feed->child_argv);

                _exit(1);
            }