static int iokit_unmount (MMCDEV *mmc) {
if (0 == mmc->is_mounted) {
return 0; /* nothing to do */
}
BD_DEBUG(DBG_MMC, "Unmounting disk\n");
mmc->session = DASessionCreate (kCFAllocatorDefault);
if (NULL == mmc->session) {
BD_DEBUG(DBG_MMC, "Could not create a disc arbitration session\n");
return -1;
}
mmc->disk = DADiskCreateFromBSDName (kCFAllocatorDefault, mmc->session, mmc->bsd_name);
if (NULL == mmc->disk) {
BD_DEBUG(DBG_MMC, "Could not create a disc arbitration disc for the device\n");
CFRelease (mmc->session);
mmc->session = NULL;
return -1;
}
DAApprovalSessionScheduleWithRunLoop (mmc->session, CFRunLoopGetCurrent (),
kCFRunLoopDefaultMode);
DADiskUnmount (mmc->disk, kDADiskUnmountOptionForce, iokit_unmount_complete, mmc);
CFRunLoopRunInMode (kCFRunLoopDefaultMode, 10, true);
return mmc->is_mounted ? -1 : 0;
}
int diskarb_unmount( const char * dir, int flags )
{
int status;
status = -1;
if ( dir )
{
DASessionRef session;
session = DASessionCreate( kCFAllocatorDefault );
if ( session )
{
CFURLRef path;
path = CFURLCreateFromFileSystemRepresentation( kCFAllocatorDefault, ( void * ) dir, strlen( dir ), TRUE );
if ( path )
{
DADiskRef disk;
disk = DADiskCreateFromVolumePath( kCFAllocatorDefault, session, path );
if ( disk )
{
DADiskUnmountOptions options;
options = kDADiskUnmountOptionDefault;
if ( ( flags & MNT_FORCE ) )
{
options |= kDADiskUnmountOptionForce;
}
DASessionScheduleWithRunLoop( session, CFRunLoopGetCurrent( ), kCFRunLoopDefaultMode );
DADiskUnmount( disk, options, __diskarb_unmount, &status );
if ( status == -1 )
{
CFRunLoopRun( );
}
status = status ? -1 : 0;
DASessionUnscheduleFromRunLoop( session, CFRunLoopGetCurrent( ), kCFRunLoopDefaultMode );
CFRelease( disk );
}
CFRelease( path );
}
CFRelease( session );
}
}
return status;
}
int mmc_umount_all(const char *mmc_device)
{
DADiskRef disk = mmc_device_to_diskref(mmc_device);
int rc = -1;
if (disk) {
struct disk_op_context context;
context.operation = "unmount";
DADiskUnmount(disk, kDADiskUnmountOptionWhole, disk_op_done_cb, &context);
// Wait for a while since unmounting sometimes takes time.
if (run_loop_for_time(10) < 0)
fwup_warnx("unmount timed out");
if (context.succeeded)
rc = 0;
CFRelease(disk);
}
return rc;
}