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try to use clock_gettime to make sure we don't care if the system time changes

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7165 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale
2008-01-11 00:43:49 +00:00
parent 886f99735a
commit 143bed09a3
38 changed files with 174 additions and 104 deletions
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78
src/switch_time.c
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@@ -59,6 +59,9 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime);
SWITCH_MODULE_DEFINITION(softtimer, softtimer_load, softtimer_shutdown, softtimer_runtime);
#define MAX_ELEMENTS 1000
#define IDLE_SPEED 100
#define STEP_MS 1
#define STEP_MIC 1000
struct timer_private {
switch_size_t reference;
@@ -77,7 +80,45 @@ typedef struct timer_matrix timer_matrix_t;
static timer_matrix_t TIMER_MATRIX[MAX_ELEMENTS + 1];
#define IDLE_SPEED 100
SWITCH_DECLARE(switch_time_t) switch_timestamp_now(void)
{
return runtime.timestamp ? runtime.timestamp : switch_time_now();
}
SWITCH_DECLARE(time_t) switch_timestamp(time_t *t)
{
time_t now = switch_timestamp_now() / APR_USEC_PER_SEC;
if (t) {
*t = now;
}
return now;
}
static switch_time_t time_now(int64_t offset)
{
switch_time_t now;
#if defined(HAVE_CLOCK_GETTIME)
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
now = ts.tv_sec * APR_USEC_PER_SEC + (ts.tv_nsec/1000) + offset;
#else
now = switch_time_now();
#endif
return now;
}
SWITCH_DECLARE(void) switch_time_sync(void)
{
runtime.reference = switch_time_now();
runtime.offset = runtime.reference - time_now(0);
runtime.reference = time_now(runtime.offset);
}
SWITCH_DECLARE(void) switch_sleep(switch_interval_time_t t)
@@ -225,15 +266,14 @@ static switch_status_t timer_destroy(switch_timer_t *timer)
}
#define STEP_MS 1
#define STEP_MIC 1000
SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
{
switch_time_t reference = switch_time_now();
switch_time_t too_late = STEP_MIC * 128;
uint32_t current_ms = 0;
uint32_t x, tick = 0;
switch_time_t ts = 0;
switch_time_t ts = 0, last = 0;
switch_time_sync();
memset(&globals, 0, sizeof(globals));
switch_mutex_init(&globals.mutex, SWITCH_MUTEX_NESTED, module_pool);
@@ -243,15 +283,35 @@ SWITCH_MODULE_RUNTIME_FUNCTION(softtimer_runtime)
runtime.sps = runtime.sps_total;
switch_mutex_unlock(runtime.throttle_mutex);
while (globals.RUNNING == 1) {
reference += STEP_MIC;
while ((ts = switch_time_now()) < reference) {
runtime.reference += STEP_MIC;
while ((ts = time_now(runtime.offset)) < runtime.reference) {
if (ts < last) {
int64_t diff = (int64_t)(ts - last);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Reverse Clock Skew Detected!\n");
runtime.reference = switch_time_now();
current_ms = 0;
tick = 0;
runtime.initiated += diff;
}
switch_yield(STEP_MIC);
last = ts;
}
if (ts > (runtime.reference + too_late)) {
switch_time_t diff = ts - runtime.reference - STEP_MIC;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Forward Clock Skew Detected!\n");
runtime.reference = switch_time_now();
current_ms = 0;
tick = 0;
runtime.initiated += diff;
}
runtime.timestamp = ts;
current_ms += STEP_MS;
tick += STEP_MS;
if (tick >= 1000) {
if (runtime.sps <= 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Over Session Rate of %d!\n", runtime.sps_total);