| -rw-r--r-- | core/opiealarm/opiealarm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/core/opiealarm/opiealarm.c b/core/opiealarm/opiealarm.c index 465e633..998cabd 100644 --- a/core/opiealarm/opiealarm.c +++ b/core/opiealarm/opiealarm.c @@ -1,69 +1,69 @@ /* * opiealarm.c * * This program is for extracting the event time/date out - * of /etc/resumeat and setting the RTC alarm to that time/date. + * of /var/run/resumeat and setting the RTC alarm to that time/date. * It is designed to run via a script just before the iPAQ * is suspended and right after the iPAQ resumes operation. * * written and copyrighted by Robert Griebl <sandman@handhelds.org> */ #include <stdio.h> #include <linux/rtc.h> #include <sys/ioctl.h> #include <sys/time.h> #include <sys/types.h> #include <fcntl.h> #include <unistd.h> #include <errno.h> #include <time.h> #include <stdlib.h> #include <syslog.h> #include <signal.h> #include <errno.h> #include <string.h> #define PIDFILE "/var/run/opiealarm.pid" #define TIMEFILE "/var/run/resumeat" #define APMFILE "/proc/apm" int resume ( int resuspend ); int suspend ( int fix_rtc ); int main ( int argc, char **argv ); int fork_with_pidfile ( void ); int kill_with_pidfile ( void ); void remove_pidfile ( void ); void usage ( void ); void sig_handler_child ( int sig ); void sig_handler_parent ( int sig ); int onac ( void ); static int opiealarm_was_running; static pid_t parent_pid = 0; void sig_handler_child ( int sig ) { // child got SIGUSR2 -> cleanup pidfile and exit remove_pidfile ( ); exit ( 0 ); } void sig_handler_parent ( int sig ) { // parent got SIGUSR1 -> safe to exit now parent_pid = 0; exit ( 0 ); } void usage ( void ) { fprintf ( stderr, "Usage: opiealarm -s [-f] | -r [-a]\n\n" ); fprintf ( stderr, "\t-s\tSuspend mode: set RTC alarm\n" ); fprintf ( stderr, "\t-f \tFix RTC, if RTC and system have more than 5sec difference (suspend mode)\n" ); fprintf ( stderr, "\t-r\tResume mode: kill running opiealarm\n" ); @@ -310,74 +310,74 @@ int suspend ( int fix_rtc ) 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 if ( resuspend && onac ( )) { time_t start, now; char *argv [4]; if ( !fork_with_pidfile ( )) return 4; // we can't wait for the resuspend timeout in the parent process. // so we fork and tell the parent it can exit immediatly kill ( parent_pid, SIGUSR1 ); // sleep <resuspend> seconds - this method is much more precise than sleep() ! time ( &start ); do { sleep ( 1 ); time ( &now ); } while (( now - start ) < resuspend ); if ( onac ( )) { // still on ac ? argv[0] = "qcop"; argv[1] = "QPE/Desktop"; argv[2] = "suspend()"; argv[3] = 0; // hard coded for now ...but needed // another way would be to simulate a power-button press setenv ( "LOGNAME", "root", 1 ); setenv ( "HOME", "/root", 1 ); setenv ( "LD_LIBRARY_PATH", "/opt/QtPalmtop/lib", 1 ); setenv ( "QTDIR", "/opt/QtPalmtop", 1 ); remove_pidfile ( ); - // no need for system() since this process is no longer usefull anyway + // no need for system() since this process is no longer usefull anyway execv ( "/opt/QtPalmtop/bin/qcop", argv ); perror ( "exec for qcop failed" ); return 5; } } } return 0; } |