32d00479e6
We were using our own versions of isc_uv_{export,import} functions
for multithreaded TCP listeners. Upcoming libuv version will
contain proper uv_{export,import} functions - use them if they're
available.
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#pragma once
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#include <uv.h>
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/*
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* These functions were introduced in newer libuv, but we still
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* want BIND9 compile on older ones so we emulate them.
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* They're inline to avoid conflicts when running with a newer
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* library version.
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*/
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#ifndef HAVE_UV_HANDLE_GET_DATA
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static inline void *
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uv_handle_get_data(const uv_handle_t *handle) {
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return (handle->data);
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}
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#endif /* ifndef HAVE_UV_HANDLE_GET_DATA */
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#ifndef HAVE_UV_HANDLE_SET_DATA
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static inline void
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uv_handle_set_data(uv_handle_t *handle, void *data) {
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handle->data = data;
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}
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#endif /* ifndef HAVE_UV_HANDLE_SET_DATA */
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#ifdef HAVE_UV_IMPORT
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#define isc_uv_stream_info_t uv_stream_info_t
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#define isc_uv_export uv_export
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#define isc_uv_import uv_import
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#else
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/*
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* These functions are not available in libuv, but they're very internal
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* to libuv. We should try to get them merged upstream.
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*/
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/*
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* A sane way to pass listening TCP socket to child threads, without using
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* IPC (as the libuv example shows) but a version of the uv_export() and
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* uv_import() functions that were unfortunately removed from libuv.
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* This is based on the original libuv code.
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*/
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typedef struct isc_uv_stream_info_s isc_uv_stream_info_t;
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struct isc_uv_stream_info_s {
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uv_handle_type type;
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#ifdef WIN32
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WSAPROTOCOL_INFOW socket_info;
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#else /* ifdef WIN32 */
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int fd;
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#endif /* ifdef WIN32 */
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};
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int
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isc_uv_export(uv_stream_t *stream, isc_uv_stream_info_t *info);
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/*%<
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* Exports uv_stream_t as isc_uv_stream_info_t value, which could
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* be used to initialize shared streams within the same process.
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*/
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int
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isc_uv_import(uv_stream_t *stream, isc_uv_stream_info_t *info);
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/*%<
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* Imports uv_stream_info_t value into uv_stream_t to initialize a
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* shared stream.
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*/
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#endif
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