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authorsandman <sandman>2002-09-05 19:10:48 (UTC)
committer sandman <sandman>2002-09-05 19:10:48 (UTC)
commitdd0222d2ec7a8f7363e746b079a46034d80d3466 (patch) (side-by-side diff)
treecb28ec395f5684a787d6c835c4cfe1ee04221064
parentb95c5502fb1b7425fe0cc503a17d8dd3658b032b (diff)
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suspend code now also calls sync() to flush fs caches (just like apm tool)
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--libopie/odevice.cpp6
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