本文整理汇总了C++中BDiskDevice::PrepareModifications方法的典型用法代码示例。如果您正苦于以下问题：C++ BDiskDevice::PrepareModifications方法的具体用法？C++ BDiskDevice::PrepareModifications怎么用？C++ BDiskDevice::PrepareModifications使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BDiskDevice的用法示例。
在下文中一共展示了BDiskDevice::PrepareModifications方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: strerror
int
main(int argc, char** argv)
{
const struct option kLongOptions[] = {
{ "help", 0, NULL, 'h' },
{ "check-only", 0, NULL, 'c' },
{ NULL, 0, NULL, 0 }
};
const char* kShortOptions = "hc";
// parse argument list
bool checkOnly = false;
while (true) {
int nextOption = getopt_long(argc, argv, kShortOptions, kLongOptions,
NULL);
if (nextOption == -1)
break;
switch (nextOption) {
case 'h': // --help
usage(stdout);
return 0;
case 'c': // --check-only
checkOnly = true;
break;
default: // everything else
usage(stderr);
return 1;
}
}
// the device name should be the only non-option element
if (optind != argc - 1) {
usage(stderr);
return 1;
}
const char* path = argv[optind];
//UnregisterFileDevice unregisterFileDevice;
BDiskDeviceRoster roster;
BPartition* partition;
BDiskDevice device;
status_t status = roster.GetPartitionForPath(path, &device,
&partition);
if (status != B_OK) {
if (strncmp(path, "/dev", 4)) {
// try mounted volume
status = roster.FindPartitionByMountPoint(path, &device, &partition)
? B_OK : B_BAD_VALUE;
}
// TODO: try to register file device
if (status != B_OK) {
fprintf(stderr, "%s: Failed to get disk device for path \"%s\": "
"%s\n", kProgramName, path, strerror(status));
return 1;
}
}
// Prepare the device for modifications
status = device.PrepareModifications();
if (status != B_OK) {
fprintf(stderr, "%s: Could not prepare the device for modifications: "
"%s\n", kProgramName, strerror(status));
return 1;
}
// Check if the partition supports repairing
bool canRepairWhileMounted;
bool canRepair = partition->CanRepair(checkOnly, &canRepairWhileMounted);
if (!canRepair && !canRepairWhileMounted) {
fprintf(stderr, "%s: The disk system does not support repairing.\n",
kProgramName);
return 1;
}
if (partition->IsMounted() && !canRepairWhileMounted) {
fprintf(stderr, "%s: The disk system does not support repairing a "
"mounted volume.\n", kProgramName);
return 1;
}
if (!partition->IsMounted() && !canRepair) {
fprintf(stderr, "%s: The disk system does not support repairing a "
"volume that is not mounted.\n", kProgramName);
return 1;
}
BDiskSystem diskSystem;
status = partition->GetDiskSystem(&diskSystem);
if (status != B_OK) {
fprintf(stderr, "%s: Failed to get disk system for partition: %s\n",
kProgramName, strerror(status));
return 1;
}
//.........这里部分代码省略.........