C++ (Cpp) VNode::IsFile Examples

Example #1

File: kernel_interface.cpp Project: luciang/haiku

// reiserfs_read
static status_t
reiserfs_read(fs_volume *fs, fs_vnode *_node, void *cookie, off_t pos,
	void *buffer, size_t *bufferSize)
{
	TOUCH(fs);
//	FUNCTION_START();
//	Volume *volume = (Volume*)fs->private_volume;
	VNode *node = (VNode*)_node->private_node;
	FUNCTION(("((%Ld: %lu, %lu), %Ld, %p, %lu)\n", node->GetID(),
			  node->GetDirID(), node->GetObjectID(), pos, buffer,
			  *bufferSize));
	status_t error = B_OK;
	// don't read anything but files
	if (!node->IsFile()) {
		if (node->IsDir())
			error = B_IS_A_DIRECTORY;
		else
			error = B_BAD_VALUE;
	}

	// read
	StreamReader *reader = (StreamReader*)cookie;
	if (error == B_OK) {
		error = reader->Resume();
		if (error == B_OK) {
			error = reader->ReadAt(pos, buffer, *bufferSize, bufferSize);
			reader->Suspend();
		}
	}
	RETURN_ERROR(error);
}