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do the alarm time-left math using unsigned longs since that is what alarm()

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returns and uses as input and converting to signed generates warnings and
actually risks loss of accuracy
This commit is contained in:
Daniel Stenberg 2004-05-05 07:17:37 +00:00
parent 35ab93f484
commit 7591e07b7c
1 changed files with 7 additions and 5 deletions
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10
lib/url.c
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@ -3174,14 +3174,16 @@ static CURLcode CreateConnection(struct SessionHandle *data,
the time we spent until now! */
if(prev_alarm) {
/* there was an alarm() set before us, now put it back */
long elapsed_ms = Curl_tvdiff(Curl_tvnow(), conn->created);
long alarm_set;
unsigned long elapsed_ms = Curl_tvdiff(Curl_tvnow(), conn->created);
unsigned long alarm_set;
/* the alarm period is counted in even number of seconds */
alarm_set = prev_alarm - elapsed_ms/1000;
if(alarm_set<=0) {
/* if it turned negative, we should fire off a SIGALRM here, but we
if(!alarm_set ||
((alarm_set >= 0x80000000) && (prev_alarm < 0x80000000)) ) {
/* if the alarm time-left reached zero or turned "negative" (counted
with unsigned values), we should fire off a SIGALRM here, but we
won't, and zero would be to switch it off so we never set it to
less than 1! */
alarm(1);