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add param for scgi to monitor its own server process

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This commit is contained in:
Anthony Minessale 2012-05-24 13:07:46 -05:00
parent 1cfd145c17
commit 8c889aa3a7
1 changed files with 98 additions and 2 deletions
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100
src/mod/xml_int/mod_xml_scgi/mod_xml_scgi.c
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@ -46,6 +46,9 @@ struct xml_binding {
switch_hash_t *vars_map;
char *bindings;
char *server;
switch_thread_t *thread;
struct xml_binding *next;
};
static int GLOBAL_DEBUG = 0;
@ -63,6 +66,8 @@ static struct {
switch_memory_pool_t *pool;
hash_node_t *hash_root;
hash_node_t *hash_tail;
int running;
xml_binding_t *bindings;
} globals;
#define XML_SCGI_SYNTAX "[debug_on|debug_off]"
@ -92,6 +97,38 @@ SWITCH_STANDARD_API(xml_scgi_function)
return SWITCH_STATUS_SUCCESS;
}
void *SWITCH_THREAD_FUNC monitor_thread_run(switch_thread_t *thread, void *obj)
{
xml_binding_t *binding = (xml_binding_t *) obj;
time_t st;
int diff;
while(globals.running) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Running server command: %s\n", binding->server);
st = switch_epoch_time_now(NULL);
switch_system(binding->server, SWITCH_TRUE);
diff = (int) switch_epoch_time_now(NULL) - st;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Server command complete: %s\n", binding->server);
if (globals.running && diff < 5) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Server command had short run duration, sleeping: %s\n", binding->server);
switch_yield(10000000);
}
}
return NULL;
}
static void launch_monitor_thread(xml_binding_t *binding)
{
switch_threadattr_t *thd_attr = NULL;
switch_threadattr_create(&thd_attr, globals.pool);
switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
switch_threadattr_priority_increase(thd_attr);
switch_thread_create(&binding->thread, thd_attr, monitor_thread_run, binding, globals.pool);
}
static switch_xml_t xml_url_fetch(const char *section, const char *tag_name, const char *key_name, const char *key_value, switch_event_t *params,
void *user_data)
@ -130,6 +167,7 @@ static switch_xml_t xml_url_fetch(const char *section, const char *tag_name, con
txt = (char *) stream.data;
while((len = scgi_recv(&handle, buf, sizeof(buf))) > 0) {
char *expanded = switch_event_expand_headers(params, (char *)buf);
bytes += len;
@ -139,8 +177,14 @@ static switch_xml_t xml_url_fetch(const char *section, const char *tag_name, con
break;
}
stream.write_function(&stream, "%s", buf);
stream.write_function(&stream, "%s", expanded);
txt = (char *) stream.data;
if (expanded != (char *)buf) {
free(expanded);
}
memset(buf, 0, sizeof(buf));
}
scgi_disconnect(&handle);
@ -210,7 +254,8 @@ static switch_status_t do_config(void)
char *port = "8080";
char *bind_mask = NULL;
int timeout = 0;
char *server = NULL;
hash_node_t *hash_node;
need_vars_map = 0;
vars_map = NULL;
@ -248,6 +293,8 @@ static switch_status_t do_config(void)
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Can't add %s to params hash!\n", val);
}
}
} else if (!strcasecmp(var, "server")) {
server = val;
}
}
@ -273,6 +320,10 @@ static switch_status_t do_config(void)
binding->vars_map = vars_map;
binding->url = switch_mprintf("scgi://%s:%s/%s", host, port, bname);
if (server) {
binding->server = switch_core_strdup(globals.pool, server);
}
if (bind_mask) {
binding->bindings = switch_core_strdup(globals.pool, bind_mask);
}
@ -297,6 +348,15 @@ static switch_status_t do_config(void)
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Binding [%s] XML Fetch Function [%s] [%s]\n",
zstr(bname) ? "N/A" : bname, binding->url, binding->bindings ? binding->bindings : "all");
switch_xml_bind_search_function(xml_url_fetch, switch_xml_parse_section_string(binding->bindings), binding);
if (binding->server) {
launch_monitor_thread(binding);
}
binding->next = globals.bindings;
globals.bindings = binding;
x++;
binding = NULL;
}
@ -315,6 +375,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_xml_scgi_load)
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
memset(&globals, 0, sizeof(globals));
globals.running = 1;
globals.pool = pool;
globals.hash_root = NULL;
globals.hash_tail = NULL;
@ -334,6 +395,41 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_xml_scgi_load)
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_xml_scgi_shutdown)
{
hash_node_t *ptr = NULL;
xml_binding_t *bp;
globals.running = 0;
for(bp = globals.bindings; bp; bp = bp->next) {
if (bp->thread) {
switch_status_t st;
scgi_handle_t handle = { 0 };
unsigned char buf[16336] = "";
int x = 3;
scgi_add_param(&handle, "REQUEST_METHOD", "POST");
scgi_add_param(&handle, "REQUEST_URI", bp->url);
scgi_add_body(&handle, "SHUTDOWN");
while(x--) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Sending shutdown message to server for %s\n", bp->url);
if (scgi_connect(&handle, bp->host, bp->port, bp->timeout * 1000) == SCGI_SUCCESS) {
while(0 && scgi_recv(&handle, buf, sizeof(buf)) > 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "%s\n", (char *) buf);
memset(buf, 0, sizeof(buf));
}
break;
}
switch_yield(5000000);
}
scgi_disconnect(&handle);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Waiting for server to stop.\n");
switch_thread_join(&st, bp->thread);
}
}
while (globals.hash_root) {
ptr = globals.hash_root;