C++ (Cpp) release_tree_lock示例

示例#1

文件： flushthread.c 项目： Krthkpjr/btrfs

static void do_flush(device_extension* Vcb) {
    FsRtlEnterFileSystem();

    acquire_tree_lock(Vcb, TRUE);

    if (Vcb->write_trees > 0)
        do_write(Vcb);
    
    free_tree_cache(&Vcb->tree_cache);

    release_tree_lock(Vcb, TRUE);

    FsRtlExitFileSystem();
}

示例#2

文件： pnp.c 项目： GYGit/reactos

static NTSTATUS pnp_query_remove_device(PDEVICE_OBJECT DeviceObject, PIRP Irp) {
    device_extension* Vcb = DeviceObject->DeviceExtension;
    NTSTATUS Status;
    LIST_ENTRY rollback;
    
    ExAcquireResourceExclusiveLite(&Vcb->fcb_lock, TRUE);

    if (Vcb->root_fileref && Vcb->root_fileref->fcb && (Vcb->root_fileref->fcb->open_count > 0 || has_open_children(Vcb->root_fileref))) {
        Status = STATUS_ACCESS_DENIED;
        goto end;
    }
    
    Status = send_disks_pnp_message(Vcb, IRP_MN_QUERY_REMOVE_DEVICE);
    if (!NT_SUCCESS(Status)) {
        WARN("send_disks_pnp_message returned %08x\n", Status);
        goto end;
    }

    Vcb->removing = TRUE;
    
    InitializeListHead(&rollback);
    
    acquire_tree_lock(Vcb, TRUE);

    if (Vcb->write_trees > 0)
        do_write(Vcb, &rollback);
    
    clear_rollback(&rollback);

    release_tree_lock(Vcb, TRUE);

    Status = STATUS_SUCCESS;
end:
    ExReleaseResourceLite(&Vcb->fcb_lock);
    
    return Status;
}