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Add macro for maximum fastslew timeout

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This commit is contained in:
Miroslav Lichvar
2011-09-01 18:08:45 +02:00
parent f570eb76b3
commit d42addf746
1 changed files with 7 additions and 5 deletions
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12
sys_linux.c
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@@ -174,6 +174,9 @@ static SCH_TimeoutID slew_timeout_id;
a fast slew */ a fast slew */
static double delta_total_tick; static double delta_total_tick;
/* Maximum length of one fast slew */
#define MAX_FASTSLEW_TIMEOUT (3600 * 24 * 7)
/* Max amount of time that we wish to slew by using adjtime (or its /* Max amount of time that we wish to slew by using adjtime (or its
equivalent). If more than this is outstanding, we alter the value equivalent). If more than this is outstanding, we alter the value
of tick instead, for a set period. Set this according to the of tick instead, for a set period. Set this according to the
@@ -405,8 +408,8 @@ adjust_fast_slew(double old_tick, double old_delta_tick)
dseconds = -offset_register * (current_total_tick + delta_total_tick) / delta_total_tick; dseconds = -offset_register * (current_total_tick + delta_total_tick) / delta_total_tick;
if (dseconds > 3600 * 24 * 7) if (dseconds > MAX_FASTSLEW_TIMEOUT)
dseconds = 3600 * 24 * 7; dseconds = MAX_FASTSLEW_TIMEOUT;
UTI_AddDoubleToTimeval(&tv, dseconds, &end_of_slew); UTI_AddDoubleToTimeval(&tv, dseconds, &end_of_slew);
slew_start_tv = tv; slew_start_tv = tv;
@@ -542,9 +545,8 @@ initiate_slew(void)
fast_slewing = 1; fast_slewing = 1;
slew_start_tv = T0; slew_start_tv = T0;
/* Set up timeout for end of slew, limit to one week */ if (dseconds > MAX_FASTSLEW_TIMEOUT)
if (dseconds > 3600 * 24 * 7) dseconds = MAX_FASTSLEW_TIMEOUT;
dseconds = 3600 * 24 * 7;
UTI_AddDoubleToTimeval(&T0, dseconds, &end_of_slew); UTI_AddDoubleToTimeval(&T0, dseconds, &end_of_slew);
slew_timeout_id = SCH_AddTimeout(&end_of_slew, handle_end_of_slew, NULL); slew_timeout_id = SCH_AddTimeout(&end_of_slew, handle_end_of_slew, NULL);