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sys: statistics: implement FSCTL_FILESYSTEM_GET_STATISTICS

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This commit is contained in:
Bill Zissimopoulos
2016-12-26 22:45:48 -08:00
parent c8206751d2
commit 168acb1a1f
11 changed files with 196 additions and 3 deletions
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23
src/sys/fsctl.c
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@ -31,6 +31,8 @@ static IO_COMPLETION_ROUTINE FspFsvolFileSystemControlOplockCompletion;
static WORKER_THREAD_ROUTINE FspFsvolFileSystemControlOplockCompletionWork;
static NTSTATUS FspFsvolFileSystemControlQueryPersistentVolumeState(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
static NTSTATUS FspFsvolFileSystemControlGetStatistics(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
static NTSTATUS FspFsvolFileSystemControl(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
FSP_IOCMPL_DISPATCH FspFsvolFileSystemControlComplete;
@ -45,6 +47,7 @@ FSP_DRIVER_DISPATCH FspFileSystemControl;
// !#pragma alloc_text(PAGE, FspFsvolFileSystemControlOplockCompletion)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlOplockCompletionWork)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlQueryPersistentVolumeState)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlGetStatistics)
#pragma alloc_text(PAGE, FspFsvolFileSystemControl)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlComplete)
#pragma alloc_text(PAGE, FspFsvolFileSystemControlRequestFini)
@ -513,6 +516,23 @@ static NTSTATUS FspFsvolFileSystemControlQueryPersistentVolumeState(
return STATUS_SUCCESS;
}
static NTSTATUS FspFsvolFileSystemControlGetStatistics(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
PAGED_CODE();
NTSTATUS Result;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
PVOID Buffer = Irp->AssociatedIrp.SystemBuffer;
ULONG Length = IrpSp->Parameters.FileSystemControl.OutputBufferLength;
Result = FspStatisticsCopy(FsvolDeviceExtension->Statistics, Buffer, &Length);
Irp->IoStatus.Information = Length;
return Result;
}
static NTSTATUS FspFsvolFileSystemControl(
PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
{
@ -549,6 +569,9 @@ static NTSTATUS FspFsvolFileSystemControl(
case FSCTL_QUERY_PERSISTENT_VOLUME_STATE:
Result = FspFsvolFileSystemControlQueryPersistentVolumeState(FsvolDeviceObject, Irp, IrpSp);
break;
case FSCTL_FILESYSTEM_GET_STATISTICS:
Result = FspFsvolFileSystemControlGetStatistics(FsvolDeviceObject, Irp, IrpSp);
break;
}
break;
}