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b377e69685
Install a public "gnetworking.h" header that can be used to include the relevant OS-dependent networking headers. This does not really abstract away unix-vs-windows however; error codes, in particular, are incompatible. gnetworkingprivate.h now contains just a few internal URI-related functions Also add a g_networking_init() function to gnetworking.h, which can be used to explicitly initialize OS-level networking, rather than having that happen as a side-effect of registering GInetAddress. https://bugzilla.gnome.org/show_bug.cgi?id=623187
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gnetworking.h"
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/**
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* SECTION:gnetworking
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* @title: gnetworking.h
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* @short_description: System networking includes
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* @include: gio/gnetworking.h
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*
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* The <literal>gnetworking.h</literal> header can be included to get
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* various low-level networking-related system headers, automatically
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* taking care of certain portability issues for you.
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*
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* This can be used, for example, if you want to call setsockopt()
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* on a #GSocket.
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*
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* Note that while WinSock has many of the same APIs as the
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* traditional UNIX socket API, most of them behave at least slightly
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* differently (particularly with respect to error handling). If you
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* want your code to work under both UNIX and Windows, you will need
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* to take these differences into account.
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*
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* Also, under glibc, certain non-portable functions are only visible
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* in the headers if you define <literal>_GNU_SOURCE</literal> before
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* including them. Note that this symbol must be defined before
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* including <emphasis>any</emphasis> headers, or it may not take
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* effect.
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*/
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/**
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* g_networking_init:
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*
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* Initializes the platform networking libraries (eg, on Windows, this
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* calls WSAStartup()). GLib will call this itself if it is needed, so
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* you only need to call it if you directly call system networking
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* functions (without calling any GLib networking functions first).
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*
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* Since: 2.36
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*/
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void
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g_networking_init (void)
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{
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#ifdef G_OS_WIN32
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static volatile gsize inited = 0;
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if (g_once_init_enter (&inited))
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{
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WSADATA wsadata;
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if (WSAStartup (MAKEWORD (2, 0), &wsadata) != 0)
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g_error ("Windows Sockets could not be initialized");
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g_once_init_leave (&inited, 1);
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}
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#endif
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}
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