141 lines
3.1 KiB
C
141 lines
3.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <getopt.h>
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#include <time.h>
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#include <jack/jack.h>
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char * my_name;
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void
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show_usage(void)
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{
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fprintf(stderr, "\nUsage: %s [options]\n", my_name);
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fprintf(stderr, "Check for jack existence, or wait, until it either quits, or gets started\n");
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fprintf(stderr, "options:\n");
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fprintf(stderr, " -s, --server <name> Connect to the jack server named <name>\n");
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fprintf(stderr, " -w, --wait Wait for server to become available\n");
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fprintf(stderr, " -q, --quit Wait until server is quit\n");
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fprintf(stderr, " -c, --check Check whether server is running\n");
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fprintf(stderr, " -t, --timeout Wait timeout in seconds\n");
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fprintf(stderr, " -h, --help Display this help message\n");
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fprintf(stderr, "For more information see http://jackaudio.org/\n");
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}
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int
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main(int argc, char *argv[])
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{
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jack_client_t *client;
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jack_status_t status;
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jack_options_t options = JackNoStartServer;
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int c;
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int option_index;
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char *server_name = NULL;
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int wait_for_start = 0;
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int wait_for_quit = 0;
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int just_check = 0;
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int wait_timeout = 0;
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time_t start_timestamp;
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struct option long_options[] = {
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{ "server", 1, 0, 's' },
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{ "wait", 0, 0, 'w' },
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{ "quit", 0, 0, 'q' },
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{ "check", 0, 0, 'c' },
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{ "timeout", 1, 0, 't' },
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{ "help", 0, 0, 'h' },
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{ 0, 0, 0, 0 }
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};
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my_name = strrchr(argv[0], '/');
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if (my_name == 0) {
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my_name = argv[0];
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} else {
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my_name ++;
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}
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while ((c = getopt_long (argc, argv, "s:wqct:hv", long_options, &option_index)) >= 0) {
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switch (c) {
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case 's':
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server_name = (char *) malloc (sizeof (char) * strlen(optarg));
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strcpy (server_name, optarg);
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options |= JackServerName;
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break;
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case 'w':
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wait_for_start = 1;
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break;
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case 'q':
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wait_for_quit = 1;
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break;
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case 'c':
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just_check = 1;
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break;
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case 't':
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wait_timeout = atoi(optarg);
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break;
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case 'h':
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show_usage();
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return 1;
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break;
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default:
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show_usage();
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return 1;
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break;
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}
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}
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/* try to open server in a loop. breaking under certein conditions */
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start_timestamp = time(NULL);
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while (1) {
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client = jack_client_open ("wait", options, &status, server_name);
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/* check for some real error and bail out */
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if ((client == NULL) && !(status & JackServerFailed)) {
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fprintf (stderr, "jack_client_open() failed, "
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"status = 0x%2.0x\n", status);
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return 1;
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}
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if (client == NULL) {
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if (wait_for_quit) {
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fprintf(stdout, "server is gone\n");
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break;
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}
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if (just_check) {
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fprintf(stdout, "not running\n");
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break;
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}
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} else {
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jack_client_close(client);
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if (wait_for_start) {
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fprintf(stdout, "server is available\n");
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break;
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}
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if (just_check) {
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fprintf(stdout, "running\n");
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break;
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}
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}
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if (wait_timeout) {
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if ((time(NULL) - start_timestamp) > wait_timeout) {
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fprintf(stdout, "timeout\n");
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exit(EXIT_FAILURE);
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}
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}
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// Wait a second, and repeat
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#ifdef WIN32
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Sleep(1*1000);
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#else
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sleep(1);
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#endif
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}
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exit(0);
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}
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