Method getFilesize

lib_acl_cpp/samples/websocket/upload_server/http_servlet.cpp:203–239

}

long long http_servlet::getFilesize(acl::websocket& in)
{
	if (in.read_frame_head() == false)
	{
		printf("read_frame_head error\r\n");
		return -1;
	}

	unsigned char opcode = in.get_frame_opcode();
	switch (opcode)
	{
		case acl::FRAME_TEXT:
		case acl::FRAME_BINARY:
			break;
		default:
			printf("invalid opcode: 0x%0x\r\n", opcode);
			return -1;
	}

	char buf[256];
	int ret = in.read_frame_data(buf, sizeof(buf) - 1);
	if (ret < 0)
	{
		printf("read_frame_data for filesize error\r\n");
		return -1;
	}
	buf[ret] = 0;
	long long len = atoll(buf);
	printf("file size: %lld, buf: %s\r\n", len, buf);
	if (len <= 0)
	{
		printf("invalid file length: %lld\r\n", len);
		return -1;
	}

	return len;
}

bool http_servlet::saveFile(acl::websocket& in, const acl::string& filename,
	long long len)