Function reload_routing_script

cfg_reload.c:401–556

This is the trigger point for script reloading */

/* This is the trigger point for script reloading
 */
int reload_routing_script(void)
{
	struct os_script_routes *sr, *sr_bk;
	char * curr_wdir=NULL;
	str cfg_buf={NULL,0};
	int cnt_sleep, ret;

	/* one reload at a time */
	lock_get( &srr_ctx->lock );
	if (srr_ctx->seq_no!=0) {
		LM_INFO("Reload already in progress, cannot start a new one\n");
		lock_release( &srr_ctx->lock );
		return -1;
	}
	srr_ctx->seq_no = srr_ctx->next_seq_no++;
	lock_release( &srr_ctx->lock );

	sr = new_sroutes_holder( 0 );
	if (sr==NULL) {
		LM_ERR("failed to allocate a new script routes holder\n");
		goto error;
	}

	LM_INFO("reparsing routes from <%s> file\n",cfg_file);

	sr_bk = sroutes;
	sroutes = sr;

	/* parse, but only the routes */
	cfg_parse_only_routes = 1;

	/* switch to the startup working dir, to be sure the file pathname 
	 * (as given at startup via cli) still match */
	if (startup_wdir) {
		if ( (curr_wdir=getcwd(NULL,0))==NULL) {
			LM_ERR("failed to determin the working dir %d/%s\n", errno,
				strerror(errno));
			goto error;
		}
		if (chdir(startup_wdir)<0){
			LM_CRIT("Cannot chdir to %s: %s\n", startup_wdir, strerror(errno));
			goto error;
		}
	}

	ret = parse_opensips_cfg( cfg_file, preproc, &cfg_buf);

	cfg_parse_only_routes = 0;

	/* revert to the original working dir */
	if (curr_wdir) {
		if (chdir(curr_wdir)<0){
			LM_CRIT("Cannot chdir to %s: %s\n", curr_wdir, strerror(errno));
		}
		free(curr_wdir);
		curr_wdir=NULL;
	}