summaryrefslogtreecommitdiff
Side-by-side diff
Diffstat (more/less context) (show whitespace changes)
-rw-r--r--core/opiealarm/opiealarm.c53
1 files changed, 32 insertions, 21 deletions
diff --git a/core/opiealarm/opiealarm.c b/core/opiealarm/opiealarm.c
index bb2e684..5ea24b7 100644
--- a/core/opiealarm/opiealarm.c
+++ b/core/opiealarm/opiealarm.c
@@ -211,98 +211,109 @@ int suspend ( int fix_rtc )
struct tm alr, sys, rtc;
int fd;
int rtc_sys_diff;
if ( !fork_with_pidfile ( ))
return 3;
// we are the child process from here on ...
tzset ( ); // not sure if it is really needed -- it probably doesn't hurt ...
- do { // try/catch simulation
-
- // read the wakeup time from /etc/resumeat
- if (!( fp = fopen ( "/etc/resumeat", "r" )))
- break; // ( 1, "/etc/resumeat" );
-
- if ( !fgets ( buf, sizeof( buf ) - 1, fp ))
- break; // ( 1, "/etc/resumeat" );
-
- fclose ( fp );
-
- alrt = atoi ( buf ); // get the alarm time
- if ( alrt == 0 )
- break; // ( 0, "/etc/resumeat contains an invalid time description" );
- alrt -= 5; // wake up 5 sec before the specified time
- alr = *gmtime ( &alrt );
-
time ( &syst );// get the UNIX system time
sys = *localtime ( &syst );
+ do {
+
if (( fd = open ( "/dev/misc/rtc", O_RDWR )) < 0 )
if (( fd = open ( "/dev/rtc", O_RDWR )) < 0 )
break; // ( 1, "rtc" );
memset ( &rtc, 0, sizeof ( struct tm )); // get the RTC time
+
if ( ioctl ( fd, RTC_RD_TIME, &rtc ) < 0 )
break; // ( 1, "ioctl RTC_RD_TIME" );
+
rtct = mktime ( &rtc );
rtc_sys_diff = ( syst - rtct ) - sys. tm_gmtoff; // calculate the difference between system and hardware time
if ( fix_rtc && (( rtc_sys_diff < -3 ) || ( rtc_sys_diff > 3 ))) {
struct tm set;
set = *gmtime ( &syst );
// if the difference between system and hardware time is more than 3 seconds,
// we have to set the RTC (hwclock --systohc), or alarms won't work reliably.
if ( ioctl ( fd, RTC_SET_TIME, &set ) < 0 )
break; // ( 1, "ioctl RTC_SET_TIME" );
}
+ // read the wakeup time from /etc/resumeat
+ if (!( fp = fopen ( "/etc/resumeat", "r" )))
+ break; // ( 1, "/etc/resumeat" );
+
+ if ( !fgets ( buf, sizeof( buf ) - 1, fp ))
+ break; // ( 1, "/etc/resumeat" );
+
+ fclose ( fp );
+
+ alrt = atoi ( buf ); // get the alarm time
+
+ if ( alrt == 0 )
+ break; // ( 0, "/etc/resumeat contains an invalid time description" );
+ alrt -= 5; // wake up 5 sec before the specified time
+
+ alr = *gmtime ( &alrt );
+
if ( ioctl ( fd, RTC_ALM_SET, &alr ) < 0 ) // set RTC alarm time
break; // ( 1, "ioctl RTC_ALM_SET" );
+
if ( ioctl ( fd, RTC_AIE_ON, 0 ) < 0 )
break; // ( 1, "ioctl RTC_AIE_ON" ); // enable RTC alarm irq
// tell the parent it is safe to exit now .. we have set the RTC alarm
kill ( parent_pid, SIGUSR1 );
if ( read ( fd, buf, sizeof( unsigned long )) < 0 ) // wait for the RTC alarm irq
break; // ( 1, "read rtc alarm" );
// iPAQ woke up via RTC irq -- otherwise we would have received a SIGUSR2
// from the "resume instance" of opiealarm.
if ( ioctl ( fd, RTC_AIE_OFF, 0 ) < 0 ) // disable RTC alarm irq
break; // ( 1, "ioctl RTC_AIE_OFF" );
close ( fd );
- remove_pidfile ( ); // normal exit
+ remove_pidfile ( );
+
return 0;
- } while ( 0 );
+ } while ( 0 )
- kill ( parent_pid, SIGUSR1 ); // parent is still running - it can exit now
+ if ( fp != NULL )
+ fclose ( fp );
+
+ if ( fd != -1 )
+ close ( fd );
+
+ kill ( parent_pid, SIGUSR1 );
while ( 1 ) // pretend that we are waiting on RTC, so opiealarm -r can kill us
sleep ( 1000 ); // if we don't do this, the "resuspend on AC" would be triggerd
return 0;
}
-
int onac ( void )
{
FILE *fp;
int on = 0;
// check the apm proc interface for AC status
if (( fp = fopen ( APMFILE, "r" ))) {
int ac = 0;
if ( fscanf ( fp, "%*[^ ] %*d.%*d 0x%*x 0x%x 0x%*x 0x%*x %*d%% %*i %*c", &ac ) == 1 )
on = ( ac == 0x01 ) ? 1 : 0;