| -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 @@ -117,78 +117,80 @@ ODevice::ODevice ( ) } 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; } |