/**
* gstreamill_job_start:
* @job: (in): json type of job description.
*
* Returns: json type of job execution result.
*/
gchar * gstreamill_job_start (Gstreamill *gstreamill, gchar *job_desc)
{
gchar *p, *name;
Job *job;
if (!jobdesc_is_valid (job_desc)) {
p = g_strdup_printf ("{\n \"result\": \"failure\",\n \"reason\": \"invalid job\"\n}");
return p;
}
if (jobdesc_is_live (job_desc)) {
GST_ERROR ("live job arrived:\n%s", job_desc);
} else {
GST_ERROR ("transcode job arrived:\n%s", job_desc);
}
/* create job object */
name = jobdesc_get_name (job_desc);
if (get_job (gstreamill, name) != NULL) {
GST_ERROR ("start job failure, duplicated name %s.", name);
p = g_strdup_printf ("{\n \"result\": \"failure\",\n \"reason\": \"duplicated name\"\n}");
g_free (name);
return p;
}
job = job_new ("job", job_desc, "name", name, "exe_path", gstreamill->exe_path, NULL);
g_free (name);
/* job initialize */
job->log_dir = gstreamill->log_dir;
g_mutex_init (&(job->access_mutex));
job->is_live = jobdesc_is_live (job_desc);
job->eos = FALSE;
job->current_access = 0;
job->age = 0;
job->last_start_time = NULL;
if (job_initialize (job, gstreamill->daemon) != 0) {
p = g_strdup_printf ("{\n \"result\": \"failure\",\n \"reason\": \"initialize job failure\"\n}");
g_object_unref (job);
return p;
}
if (job->is_live && (job_output_initialize (job) != 0)) {
p = g_strdup_printf ("{\n \"result\": \"failure\",\n \"reason\": \"initialize job output failure\"\n}");
g_object_unref (job);
return p;
}
/* reset and start job */
job_reset (job);
if (gstreamill->daemon) {
guint64 stat;
stat = create_job_process (job);
if (stat == JOB_STATE_PLAYING) {
GST_ERROR ("Start job %s success", job->name);
g_mutex_lock (&(gstreamill->job_list_mutex));
gstreamill->job_list = g_slist_append (gstreamill->job_list, job);
g_mutex_unlock (&(gstreamill->job_list_mutex));
p = g_strdup_printf ("{\n \"name\": \"%s\",\n\"result\": \"success\"\n}", job->name);
} else {
GST_ERROR ("Start job %s failure, return stat: %s", job->name, job_state_get_name (stat));
g_object_unref (job);
p = g_strdup_printf ("{\n \"result\": \"failure\",\n \"reason\": \"create process failure\"\n}");
}
} else {
job_encoders_output_initialize (job);
if (job_start (job) == 0) {
g_mutex_lock (&(gstreamill->job_list_mutex));
gstreamill->job_list = g_slist_append (gstreamill->job_list, job);
g_mutex_unlock (&(gstreamill->job_list_mutex));
p = g_strdup ("{\n \"result\": \"success\"\n}");
} else {
p = g_strdup_printf ("{\n \"result\": \"failure\",\n \"reason\": \"unknown\"\n}");
}
}
return p;
}
int main (int argc, char *argv[])
{
HTTPMgmt *httpmgmt;
HTTPStreaming *httpstreaming;
GMainLoop *loop;
GOptionContext *ctx;
GError *err = NULL;
gboolean foreground;
struct rlimit rlim;
GDateTime *datetime;
gchar exe_path[512], *date;
ctx = g_option_context_new (NULL);
g_option_context_add_main_entries (ctx, options, NULL);
g_option_context_add_group (ctx, gst_init_get_option_group ());
if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
g_print ("Error initializing: %s\n", GST_STR_NULL (err->message));
exit (1);
}
g_option_context_free (ctx);
GST_DEBUG_CATEGORY_INIT (GSTREAMILL, "gstreamill", 0, "gstreamill log");
if (version) {
print_version_info ();
exit (0);
}
/* stop gstreamill. */
if (stop) {
gchar *pid_str;
gint pid;
g_file_get_contents (PID_FILE, &pid_str, NULL, NULL);
if (pid_str == NULL) {
g_print ("File %s not found, check if gstreamill is running.\n", PID_FILE);
exit (1);
}
pid = atoi (pid_str);
g_free (pid_str);
g_print ("stoping gstreamill with pid %d ...\n", pid);
kill (pid, SIGTERM);
exit (0);
}
/* readlink exe path before setuid, on CentOS, readlink exe path after setgid/setuid failure on permission denied */
memset (exe_path, '\0', sizeof (exe_path));
if (readlink ("/proc/self/exe", exe_path, sizeof (exe_path)) == -1) {
g_print ("Read /proc/self/exe error: %s", g_strerror (errno));
exit (2);
}
if (prepare_gstreamill_run_dir () != 0) {
g_print ("Can't create gstreamill run directory\n");
exit (3);
}
/*
if (set_user_and_group () != 0) {
g_print ("set user and group failure\n");
exit (4);
}
*/
if (job_file != NULL) {
/* gstreamill command with job, run in foreground */
foreground = TRUE;
} else {
/* gstreamill command without job, run in background */
foreground = FALSE;
}
if (gst_debug_get_default_threshold () < GST_LEVEL_WARNING) {
gst_debug_set_default_threshold (GST_LEVEL_WARNING);
}
/* initialize ts segment static plugin */
if (!gst_plugin_register_static (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"tssegment",
"ts segment plugin",
ts_segment_plugin_init,
"0.1.0",
"GPL",
"GStreamer",
"GStreamer",
"http://gstreamer.net/")) {
GST_ERROR ("registe tssegment error");
exit (17);
}
/* subprocess, create_job_process */
if (shm_name != NULL) {
gint fd;
gchar *job_desc, *p;
Job *job;
gchar *log_path, *name;
gint ret;
/* set subprocess maximum of core file */
rlim.rlim_cur = 0;
rlim.rlim_max = 0;
if (setrlimit (RLIMIT_CORE, &rlim) == -1) {
GST_ERROR ("setrlimit error: %s", g_strerror (errno));
}
/* read job description from share memory */
job_desc = NULL;
fd = shm_open (shm_name, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR);
if (ftruncate (fd, job_length) == -1) {
exit (5);
}
p = mmap (NULL, job_length, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
job_desc = g_strdup (p);
if ((job_desc != NULL) && (!jobdesc_is_valid (job_desc))) {
exit (6);
}
/* initialize log */
name = (gchar *)jobdesc_get_name (job_desc);
if (!jobdesc_is_live (job_desc)) {
gchar *p;
p = jobdesc_get_log_path (job_desc);
log_path = g_build_filename (p, "gstreamill.log", NULL);
g_free (p);
} else {
log_path = g_build_filename (log_dir, name, "gstreamill.log", NULL);
}
ret = init_log (log_path);
g_free (log_path);
if (ret != 0) {
exit (7);
}
/* launch a job. */
datetime = g_date_time_new_now_local ();
date = g_date_time_format (datetime, "%b %d %H:%M:%S");
fprintf (_log->log_hd, "\n*** %s : job %s starting ***\n\n", date, name);
g_date_time_unref (datetime);
g_free (date);
job = job_new ("name", name, "job", job_desc, NULL);
job->is_live = jobdesc_is_live (job_desc);
job->eos = FALSE;
loop = g_main_loop_new (NULL, FALSE);
GST_INFO ("Initializing job ...");
if (job_initialize (job, TRUE) != 0) {
GST_ERROR ("initialize job failure, exit");
exit (8);
}
GST_INFO ("Initializing job done");
GST_INFO ("Initializing job's encoders output ...");
if (job_encoders_output_initialize (job) != 0) {
GST_ERROR ("initialize job encoders' output failure, exit");
exit (8);
}
GST_INFO ("Initializing job's encoders output done");
GST_INFO ("Starting job ...");
if (job_start (job) != 0) {
GST_ERROR ("start livejob failure, exit");
exit (9);
}
datetime = g_date_time_new_now_local ();
date = g_date_time_format (datetime, "%b %d %H:%M:%S");
fprintf (_log->log_hd, "\n*** %s : job %s started ***\n\n", date, name);
g_date_time_unref (datetime);
g_free (date);
g_free (name);
g_free (job_desc);
signal (SIGPIPE, SIG_IGN);
signal (SIGUSR1, sighandler);
signal (SIGTERM, stop_job);
g_main_loop_run (loop);
} else {
/* set parent process maximum of core file */
rlim.rlim_cur = RLIM_INFINITY;
rlim.rlim_max = RLIM_INFINITY;
if (setrlimit (RLIMIT_CORE, &rlim) == -1) {
GST_ERROR ("setrlimit error: %s", g_strerror (errno));
}
}
/* run in background? */
if (!foreground) {
gchar *path;
gint ret;
/* pid file exist? */
if (g_file_test (PID_FILE, G_FILE_TEST_EXISTS)) {
g_print ("file %s found, gstreamill already running !!!\n", PID_FILE);
exit (10);
}
/* media directory */
path = g_strdup_printf ("%s/dvr", MEDIA_LOCATION);
if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
g_printf ("Create DVR directory: %s", path);
if (g_mkdir_with_parents (path, 0755) != 0) {
g_printf ("Create DVR directory failure: %s", path);
}
}
g_free (path);
path = g_strdup_printf ("%s/transcode/in", MEDIA_LOCATION);
if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
g_printf ("Create transcode directory: %s", path);
if (g_mkdir_with_parents (path, 0755) != 0) {
g_printf ("Create transcode directory failure: %s", path);
}
}
g_free (path);
path = g_strdup_printf ("%s/transcode/out", MEDIA_LOCATION);
if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
g_printf ("Create transcode directory: %s", path);
if (g_mkdir_with_parents (path, 0755) != 0) {
g_printf ("Create transcode directory failure: %s", path);
}
}
g_free (path);
/* log to file */
path = g_build_filename (log_dir, "gstreamill.log", NULL);
ret = init_log (path);
g_free (path);
if (ret != 0) {
g_print ("Init log error, ret %d.\n", ret);
exit (11);
}
/* daemonize */
if (daemon (0, 0) != 0) {
fprintf (_log->log_hd, "Failed to daemonize");
remove_pid_file ();
exit (1);
}
/* create pid file */
if (create_pid_file () != 0) {
exit (1);
}
/* customize signal */
signal (SIGUSR1, sighandler);
signal (SIGTERM, stop_gstreamill);
datetime = g_date_time_new_now_local ();
date = g_date_time_format (datetime, "%b %d %H:%M:%S");
fprintf (_log->log_hd, "\n*** %s : gstreamill started ***\n\n", date);
g_free (date);
g_date_time_unref (datetime);
}
/* ignore SIGPIPE */
signal (SIGPIPE, SIG_IGN);
loop = g_main_loop_new (NULL, FALSE);
/* gstreamill */
gstreamill = gstreamill_new ("daemon", !foreground, "log_dir", log_dir, "exe_path", exe_path, NULL);
if (gstreamill_start (gstreamill) != 0) {
GST_ERROR ("start gstreamill error, exit.");
remove_pid_file ();
exit (12);
}
/* httpstreaming, pull */
httpstreaming = httpstreaming_new ("gstreamill", gstreamill, "address", http_streaming, NULL);
if (httpstreaming_start (httpstreaming, 10) != 0) {
GST_ERROR ("start httpstreaming error, exit.");
remove_pid_file ();
exit (13);
}
if (!foreground) {
/* run in background, management via http */
httpmgmt = httpmgmt_new ("gstreamill", gstreamill, "address", http_mgmt, NULL);
if (httpmgmt_start (httpmgmt) != 0) {
GST_ERROR ("start http mangment error, exit.");
remove_pid_file ();
exit (14);
}
} else {
/* run in foreground, start job */
gchar *job, *p, *result;
JSON_Value *val;
JSON_Object *obj;
/* ctrl-c, stop gstreamill */
signal (SIGINT, stop_gstreamill);
/* ctrl-\, stop gstreamill */
signal (SIGQUIT, stop_gstreamill);
if (!g_file_get_contents (job_file, &job, NULL, NULL)) {
GST_ERROR ("Read job file %s error.", job_file);
exit (15);
}
p = gstreamill_job_start (gstreamill, job);
val = json_parse_string (p);
obj = json_value_get_object (val);
result = (gchar *)json_object_get_string (obj, "result");
GST_INFO ("start job result: %s.", result);
if (g_strcmp0 (result, "success") != 0) {
exit (16);
}
json_value_free (val);
g_free (p);
}
g_main_loop_run (loop);
return 0;
}