| -rw-r--r-- | libopie/odevice.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp index 1da8862..2f40731 100644 --- a/libopie/odevice.cpp +++ b/libopie/odevice.cpp @@ -143,26 +143,28 @@ bool ODevice::suspend ( ) (( fd = ::open ( "/dev/misc/apm_bios",O_RDWR )) >= 0 )) { struct timeval tvs, tvn; ::signal ( SIGTSTP, SIG_IGN ); // we don't want to be stopped ::gettimeofday ( &tvs, 0 ); + ::sync ( ); // flush fs caches + res = ( ::ioctl ( fd, APM_IOC_SUSPEND ) == 0 ); // tell the kernel to "start" suspending - ::close ( fd ); if ( res ) { - ::kill ( -::getpid ( ), SIGTSTP ); // stop everthing in out process group + ::kill ( -::getpid ( ), SIGTSTP ); // stop everthing in our process group do { // wait at most 1.5 sec: either suspend didn't work or the device resumed ::usleep ( 200 * 1000 ); ::gettimeofday ( &tvn, 0 ); } while ((( tvn. tv_sec - tvs. tv_sec ) * 1000 + ( tvn. tv_usec - tvs. tv_usec ) / 1000 ) < 1500 ); ::kill ( -::getpid ( ), SIGCONT ); // continue everything in our process group } + ::close ( fd ); ::signal ( SIGTSTP, SIG_DFL ); } return res; } |