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dont let value dip below 0

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16409 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale 2010-01-19 18:23:18 +00:00
parent 2ddd9904b2
commit 1248e6c644
1 changed files with 13 additions and 1 deletions
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14
src/switch_time.c
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@ -181,7 +181,7 @@ SWITCH_DECLARE(void) switch_time_calibrate_clock(void)
{ {
int x; int x;
switch_interval_time_t avg, val = 1000, want = 1000; switch_interval_time_t avg, val = 1000, want = 1000;
int over = 0, under = 0, good = 0, step = 50, diff = 0; int over = 0, under = 0, good = 0, step = 50, diff = 0, retry = 0;
#ifdef HAVE_CLOCK_GETRES #ifdef HAVE_CLOCK_GETRES
struct timespec ts; struct timespec ts;
@ -196,6 +196,10 @@ SWITCH_DECLARE(void) switch_time_calibrate_clock(void)
} }
#endif #endif
top:
val = 1000;
step = 50;
over = under = good = 0;
OFFSET = 0; OFFSET = 0;
for (x = 0; x < 100; x++) { for (x = 0; x < 100; x++) {
@ -221,11 +225,19 @@ SWITCH_DECLARE(void) switch_time_calibrate_clock(void)
} else if (avg > want) { } else if (avg > want) {
if (under) {calc_step();} if (under) {calc_step();}
under = good = 0; under = good = 0;
if ((val - step) < 0) {
if (++retry > 2) break;
goto top;
}
val -= step; val -= step;
over++; over++;
} else if (avg < want) { } else if (avg < want) {
if (over) {calc_step();} if (over) {calc_step();}
over = good = 0; over = good = 0;
if ((val - step) < 0) {
if (++retry > 2) break;
goto top;
}
val += step; val += step;
under++; under++;
} }