| -rw-r--r-- | core/opiealarm/opiealarm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/core/opiealarm/opiealarm.c b/core/opiealarm/opiealarm.c index 072dca7..465e633 100644 --- a/core/opiealarm/opiealarm.c +++ b/core/opiealarm/opiealarm.c @@ -213,124 +213,126 @@ int suspend ( int fix_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 ... 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 TIMEFILE if (!( fp = fopen ( TIMEFILE, "r" ))) break; // ( 1, TIMEFILE ); if ( !fgets ( buf, sizeof( buf ) - 1, fp )) break; // ( 1, TIMEFILE ); fclose ( fp ); + fp = 0; alrt = atoi ( buf ); // get the alarm time if ( alrt == 0 ) break; // ( 0, TIMEFILE " 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 ); + fd = -1; remove_pidfile ( ); return 0; } while ( 0 ); 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; fclose ( fp ); } return on; } int resume ( int resuspend ) { FILE *fp; // re-suspend when on AC (optional) when woken up via RTC if ( !opiealarm_was_running ) { // if opiealarm -s didn't wake up via RTC, the old process gets killed // by kill_by_pidfile(), which is recorded in opiealarm_was_running |