diff options
Diffstat (limited to 'src/net/retry.c')
| -rw-r--r-- | src/net/retry.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/src/net/retry.c b/src/net/retry.c index 3c934018..2a645c97 100644 --- a/src/net/retry.c +++ b/src/net/retry.c @@ -36,20 +36,11 @@ * */ -/** Default timeout value */ -#define MIN_TIMEOUT ( TICKS_PER_SEC / 4 ) - -/** Limit after which the timeout will be deemed permanent */ -#define MAX_TIMEOUT ( 10 * TICKS_PER_SEC ) - /* The theoretical minimum that the algorithm in stop_timer() can * adjust the timeout back down to is seven ticks, so set the minimum * timeout to at least that value for the sake of consistency. */ -#if MIN_TIMEOUT < 7 -#undef MIN_TIMEOUT #define MIN_TIMEOUT 7 -#endif /** List of running timers */ static LIST_HEAD ( timers ); @@ -67,8 +58,17 @@ void start_timer ( struct retry_timer *timer ) { if ( ! timer_running ( timer ) ) list_add ( &timer->list, &timers ); timer->start = currticks(); - if ( timer->timeout < MIN_TIMEOUT ) - timer->timeout = MIN_TIMEOUT; + + /* 0 means "use default timeout" */ + if ( timer->min_timeout == 0 ) + timer->min_timeout = DEFAULT_MIN_TIMEOUT; + /* We must never be less than MIN_TIMEOUT under any circumstances */ + if ( timer->min_timeout < MIN_TIMEOUT ) + timer->min_timeout = MIN_TIMEOUT; + /* Honor user-specified minimum timeout */ + if ( timer->timeout < timer->min_timeout ) + timer->timeout = timer->min_timeout; + DBG2 ( "Timer %p started at time %ld (expires at %ld)\n", timer, timer->start, ( timer->start + timer->timeout ) ); } @@ -150,8 +150,10 @@ static void timer_expired ( struct retry_timer *timer ) { /* Back off the timeout value */ timer->timeout <<= 1; - if ( ( fail = ( timer->timeout > MAX_TIMEOUT ) ) ) - timer->timeout = MAX_TIMEOUT; + if ( timer->max_timeout == 0 ) /* 0 means "use default timeout" */ + timer->max_timeout = DEFAULT_MAX_TIMEOUT; + if ( ( fail = ( timer->timeout > timer->max_timeout ) ) ) + timer->timeout = timer->max_timeout; DBG ( "Timer %p timeout backed off to %ld\n", timer, timer->timeout ); |