suspend code now also calls sync() to flush fs caches (just like apm tool)

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
@@ -85,142 +85,144 @@ protected:
 
 
 
 
 ODevice *ODevice::inst ( )
 {
 	static ODevice *dev = 0;
 	
 	if ( !dev ) {
 		if ( QFile::exists ( "/proc/hal/model" ))
 			dev = new ODeviceIPAQ ( );
 		else if ( QFile::exists ( "/dev/sharp_buz" ) || QFile::exists ( "/dev/sharp_led" ))
 			dev = new ODeviceZaurus ( );
 		else
 			dev = new ODevice ( );
 			
 		dev-> init ( );
 	}
 	return dev;
 }
 
 ODevice::ODevice ( )
 {
 	d = new ODeviceData;
 
 	d-> m_modelstr = "Unknown";
 	d-> m_model = OMODEL_Unknown;
 	d-> m_vendorstr = "Unkown";
 	d-> m_vendor = OVENDOR_Unknown;
 	d-> m_systemstr = "Unkown";
 	d-> m_system = OSYSTEM_Unknown;
 	d-> m_sysverstr = "0.0";
 }
 
 void ODevice::init ( )
 {
 }
 
 ODevice::~ODevice ( )
 {
 	delete d;
 }
 
 //#include <linux/apm_bios.h>
 
 //#define APM_IOC_SUSPEND        _IO('A',2)
 
 #define APM_IOC_SUSPEND          (( 0<<30 ) | ( 'A'<<8 ) | ( 2 ) | ( 0<<16 ))
 
 bool ODevice::suspend ( )
 {
 	if ( d-> m_model == OMODEL_Unknown ) // better don't suspend in qvfb / on unkown devices
 		return false;
 
 	int fd;
 	bool res = false;
 	
 	if ((( fd = ::open ( "/dev/apm_bios", O_RDWR )) >= 0 ) ||
 	    (( 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;
 }
 
 
 QString ODevice::vendorString ( )
 {
 	return d-> m_vendorstr;
 }
 
 OVendor ODevice::vendor ( )
 {
 	return d-> m_vendor;
 }
 
 QString ODevice::modelString ( )
 {
 	return d-> m_modelstr;
 }
 
 OModel ODevice::model ( )
 {
 	return d-> m_model;
 }
 
 QString ODevice::systemString ( )
 {
 	return d-> m_systemstr;
 }
 
 OSystem ODevice::system ( )
 {
 	return d-> m_system;
 }
 
 QString ODevice::systemVersionString ( )
 {
 	return d-> m_sysverstr;
 }
 
 void ODevice::alarmSound ( )
 {
 #ifndef QT_QWS_EBX
 #ifndef QT_NO_SOUND
 	static Sound snd ( "alarm" );
 
 	if ( snd. isFinished ( ))
 		snd. play ( );
 #endif
 #endif
 }
 
 void ODevice::keySound ( )
 {
 #ifndef QT_QWS_EBX
 #ifndef QT_NO_SOUND
 	static Sound snd ( "keysound" );
 
 	if ( snd. isFinished ( ))
 		snd. play ( );
 #endif
 #endif