| -rw-r--r-- | core/opiealarm/opiealarm.c | 73 |
1 files changed, 42 insertions, 31 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 @@ -217,57 +217,62 @@ int suspend ( int fix_rtc ) 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 + time ( &syst );// get the UNIX system time + sys = *localtime ( &syst ); - // 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" ); + + 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 ) + + 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 @@ -275,28 +280,34 @@ int suspend ( int fix_rtc ) // 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 - return 0; - } while ( 0 ); + remove_pidfile ( ); + + return 0; + + } while ( 0 ) + + if ( fp != NULL ) + fclose ( fp ); - kill ( parent_pid, SIGUSR1 ); // parent is still running - it can exit now + 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 |