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add some statistics on sonar

This commit is contained in:
Seven Du 2013-09-27 04:56:07 +08:00
parent e09cdf9c3a
commit 2af0cf891d
1 changed files with 52 additions and 3 deletions
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55
src/mod/applications/mod_sonar/mod_sonar.c
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@ -40,6 +40,14 @@
#include <switch.h>
#ifndef MIN
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif
/* Prototypes */
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_sonar_shutdown);
SWITCH_MODULE_RUNTIME_FUNCTION(mod_sonar_runtime);
@ -51,17 +59,26 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_sonar_load);
SWITCH_MODULE_DEFINITION(mod_sonar, mod_sonar_load, mod_sonar_shutdown, NULL);
switch_time_t start, end, diff;
int samples[1024];
int received;
int sum, min, max = 0;
switch_bool_t sonar_ping_callback(switch_core_session_t *session, const char *app, const char *app_data){
if ( end ) {
return SWITCH_TRUE;
}
end = switch_time_now();
diff = end - start;
start = 0;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Sonar ping took %ld milliseconds\n", (long)diff / 1000);
diff /= 1000;
sum += diff;
max = MAX(max, diff);
min = MIN(min, diff);
samples[received++] = diff;
return SWITCH_TRUE;
}
@ -72,6 +89,9 @@ SWITCH_STANDARD_APP(sonar_app)
char *tone = "%(500,0,1004)";
const char *arg = (char *) data;
int loops;
int lost = 0;
int x;
int avg = 0, mdev = 0;
if (zstr(arg)) {
loops = 5;
@ -81,6 +101,8 @@ SWITCH_STANDARD_APP(sonar_app)
if (loops < 0) {
loops = 5;
} else if (loops > 1024) {
loops = 1024;
}
switch_channel_answer(channel);
@ -93,18 +115,45 @@ SWITCH_STANDARD_APP(sonar_app)
switch_ivr_sleep(session, 1000, SWITCH_FALSE, NULL);
for( int x = 0; x < loops; x++ ) {
received = 0; sum = 0; max = 0; min = 999999;
for( x = 0; x < loops; x++ ) {
end = 0;
start = switch_time_now();
switch_ivr_gentones(session, tone, 1, NULL);
switch_ivr_sleep(session, 2000, SWITCH_FALSE, NULL);
if ( start ) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Lost sonar ping\n");
lost++;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Lost sonar ping\n");
}
}
switch_ivr_sleep(session, 1000, SWITCH_FALSE, NULL);
switch_ivr_stop_tone_detect_session(session);
if (loops == lost) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Too bad, we lost all!\n");
return;
}
if (received + lost != loops) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Race happend %d + %d != %d\n", received, lost, loops);
}
if (received > 0) avg = sum / received;
sum = 0;
for(x = 0; x < received; x++) {
sum += (samples[x] - avg) * (samples[x] - avg);
}
if (received > 1) {
mdev = sqrt(sum / (received - 1));
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO,
"SONAR: min:%d max:%d avg:%d mdev:%d sent:%d recv: %d lost:%d lost/send:%2.2f%%\n",
min, max, avg, mdev, loops, received, lost, lost * 1.0 / loops);
}
/* Macro expands to: switch_status_t mod_sonar_load(switch_loadable_module_interface_t **module_interface, switch_memory_pool_t *pool) */