| -rw-r--r-- | core/opiealarm/opiealarm.c | 36 | ||||
| -rwxr-xr-x | root/etc/resume-scripts/R46opiealarm | 2 |
2 files changed, 25 insertions, 13 deletions
diff --git a/core/opiealarm/opiealarm.c b/core/opiealarm/opiealarm.c index 3a06236..ac98832 100644 --- a/core/opiealarm/opiealarm.c +++ b/core/opiealarm/opiealarm.c @@ -1,309 +1,321 @@ /* opiealarm.c * This program is for extracting the event time/date out * of /etc/resumeat and setting the RTC alarm to that time/date. * It is designed to run via a script just before the iPaq * is suspended. * * Roughly based on ipaqalarm from Benjamin Long * * written 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 APMFILE "/proc/apm" FILE *log; // debug only -int resume ( void ); +int resume ( int resuspend ); int suspend ( void ); 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 ( int sig ); void error_msg_and_die ( int perr, const char *msg ); int onac ( void ); static int opiealarm_was_running; void log_msg ( const char *msg ) { if ( log ) { fprintf ( log, msg ); fflush ( log ); } } void error_msg_and_die ( int perr, const char *msg ) { if ( perr ) log_msg ( strerror ( errno )); log_msg ( msg ); while ( 1 ) // pretend we are waiting on RTC, so opiealarm -r can kill us sleep ( 1 ); } void sig_handler ( int sig ) { log_msg ( "GOT SIGNAL -> EXITING\n" ); fclose ( log ); remove_pidfile ( ); exit ( 0 ); } void usage ( void ) { - fprintf ( stderr, "Usage: opiealarm -r|-s\n" ); + fprintf ( stderr, "Usage: opiealarm -r|-s [-a]\n\n" ); + fprintf ( stderr, "\t-s\tSuspend mode: set RTC alarm\n" ); + fprintf ( stderr, "\t-r\tResume mode: kill running opiealarm\n" ); + fprintf ( stderr, "\t-a <x>\tResuspend in <x> seconds (resume mode)\n\n" ); exit ( 1 ); } int fork_with_pidfile ( void ) { FILE *fp; pid_t pid; pid = fork ( ); if ( pid > 0 ) exit ( 0 ); else if ( pid < 0 ) { perror ( "forking failed" ); return 0; } signal ( SIGTERM, sig_handler ); signal ( SIGINT, sig_handler ); // save pid if (( fp = fopen ( PIDFILE, "w" ))) { fprintf ( fp, "%d", getpid ( )); fclose ( fp ); // detach close ( 0 ); close ( 1 ); close ( 2 ); setpgid ( 0, 0 ); return 1; } else { perror ( PIDFILE ); return 0; } } int kill_with_pidfile ( void ) { FILE *fp; pid_t pid; if (( fp = fopen ( PIDFILE, "r" ))) { if ( fscanf ( fp, "%d", &pid ) == 1 ) return ( kill ( pid, SIGTERM ) == 0 ) ? 1 : 0; fclose ( fp ); } return 0; } void remove_pidfile ( void ) { unlink ( PIDFILE ); signal ( SIGTERM, SIG_DFL ); signal ( SIGINT, SIG_DFL ); } int main ( int argc, char **argv ) { int mode = 0; + int ac_resusp = 0; int opt; - while (( opt = getopt ( argc, argv, "rs" )) != EOF ) { + while (( opt = getopt ( argc, argv, "a:rs" )) != EOF ) { switch ( opt ) { case 's': mode = 's'; break; case 'r': mode = 'r'; break; + case 'a': + ac_resusp = atoi ( optarg ); + if ( ac_resusp < 30 ) { + ac_resusp = 120; + + fprintf ( stderr, "Warning: resuspend timeout must be >= 30 sec. -- now set to 120 sec\n" ); + } + break; default: usage ( ); } } if ( geteuid ( ) != 0 ) { fprintf ( stderr, "You need root priviledges to run opiealarm." ); return 2; } if ( !mode ) usage ( ); // kill running opiealarm opiealarm_was_running = kill_with_pidfile ( ); remove_pidfile ( ); - if ( mode == 'r' ) - return resume ( ); - else - return suspend ( ); - + switch ( mode ) { + case 'r': return resume ( ac_resusp ); + case 's': + default : return suspend ( ); + } return 0; } int suspend ( void ) { FILE *fp; char buf [64]; time_t t; struct tm *tm; int fd; if ( !fork_with_pidfile ( )) return 3; log = fopen ( "/tmp/opiealarm.log", "w" ); log_msg ( "STARTING\n" ); if (!( fp = fopen ( "/etc/resumeat", "r" ))) error_msg_and_die ( 1, "/etc/resumeat" ); if ( !fgets ( buf, sizeof( buf ) - 1, fp )) error_msg_and_die ( 1, "/etc/resumeat" ); fclose ( fp ); t = atoi ( buf ); if ( t == 0 ) error_msg_and_die ( 0, "/etc/resumeat contains an invalid time description" ); /* subtract 5 sec from event time... */ t -= 5; if ( log ) fprintf ( log, "Setting RTC alarm to %d\n", t ); tm = gmtime ( &t ); // Write alarm time to RTC if (( fd = open ( "/dev/misc/rtc", O_RDWR )) < 0 ) error_msg_and_die ( 1, "/dev/misc/rtc" ); // set alarm time if ( ioctl ( fd, RTC_ALM_SET, tm ) < 0 ) error_msg_and_die ( 1, "ioctl RTC_ALM_SET" ); // enable alarm irq if ( ioctl ( fd, RTC_AIE_ON, 0 ) < 0 ) error_msg_and_die ( 1, "ioctl RTC_AIE_ON" ); log_msg ( "SLEEPING\n" ); // wait for alarm irq if ( read ( fd, buf, sizeof( unsigned long )) < 0 ) error_msg_and_die ( 1, "read rtc alarm" ); log_msg ( "WAKEUP\n" ); // disable alarm irq if ( ioctl ( fd, RTC_AIE_OFF, 0 ) < 0 ) error_msg_and_die ( 1, "ioctl RTC_AIE_OFF" ); close ( fd ); log_msg ( "EXITING\n" ); fclose ( log ); remove_pidfile ( ); return 0; } static int onac ( void ) { FILE *fp; int on = 0; 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 ( void ) +int resume ( int resuspend ) { FILE *fp; // re-suspend when on AC (optional) when woken up via RTC if ( !opiealarm_was_running ) { // opiealarm -s got it's RTC signal -> wake up by RTC - if ( onac ( )) { + if ( resuspend && onac ( )) { time_t start, now; char *argv [4]; if ( !fork_with_pidfile ( )) return 4; - // sleep 120sec (not less!) + // sleep <resuspend> sec (not less!) time ( &start ); do { sleep ( 1 ); time ( &now ); - } while (( now - start ) < 120 ); + } while (( now - start ) < resuspend ); if ( onac ( )) { // still on ac // system() without fork argv[0] = "qcop"; argv[1] = "QPE/Desktop"; argv[2] = "suspend()"; argv[3] = 0; // hard coded for now ...but needed setenv ( "LOGNAME", "root", 1 ); setenv ( "HOME", "/root", 1 ); setenv ( "LD_LIBRARY_PATH", "/opt/QtPalmtop/lib", 1 ); setenv ( "QTDIR", "/opt/QtPalmtop", 1 ); remove_pidfile ( ); execv ( "/opt/QtPalmtop/bin/qcop", argv ); perror ( "exec for qcop failed" ); return 5; } } } return 0; } diff --git a/root/etc/resume-scripts/R46opiealarm b/root/etc/resume-scripts/R46opiealarm index c258047..169dc30 100755 --- a/root/etc/resume-scripts/R46opiealarm +++ b/root/etc/resume-scripts/R46opiealarm @@ -1,5 +1,5 @@ #!/bin/sh # Starts opiealarm, which only runs while the iPaq sleeps # and wakes it up when the RTC alarm goes off. -/opt/QtPalmtop/bin/opiealarm -r +/opt/QtPalmtop/bin/opiealarm -r -a 120 |