Paul Stewart | 25379f1 | 2011-05-26 06:41:38 -0700 | [diff] [blame] | 1 | // Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include <stdio.h> |
| 6 | #include <glib.h> |
| 7 | |
| 8 | #include "shill/glib_io_handler.h" |
| 9 | |
| 10 | namespace shill { |
| 11 | |
| 12 | static gboolean DispatchIOHandler(GIOChannel *chan, |
| 13 | GIOCondition cond, |
| 14 | gpointer data); |
| 15 | |
| 16 | GlibIOInputHandler::GlibIOInputHandler(int fd, |
| 17 | Callback1<InputData*>::Type *callback) |
| 18 | : callback_(callback) { |
| 19 | channel_ = g_io_channel_unix_new(fd); |
| 20 | g_io_channel_set_close_on_unref(channel_, TRUE); |
| 21 | source_id_ = g_io_add_watch(channel_, |
| 22 | (GIOCondition)(G_IO_IN | G_IO_NVAL | |
| 23 | G_IO_HUP | G_IO_ERR), |
| 24 | DispatchIOHandler, this); |
| 25 | } |
| 26 | |
| 27 | GlibIOInputHandler::~GlibIOInputHandler() { |
| 28 | g_source_remove(source_id_); |
| 29 | g_io_channel_shutdown(channel_, TRUE, NULL); |
| 30 | g_io_channel_unref(channel_); |
| 31 | } |
| 32 | |
| 33 | static gboolean DispatchIOHandler(GIOChannel *chan, |
| 34 | GIOCondition cond, |
| 35 | gpointer data) { |
| 36 | GlibIOInputHandler *handler = static_cast<GlibIOInputHandler *>(data); |
| 37 | unsigned char buf[4096]; |
| 38 | gsize len; |
| 39 | GIOError err; |
| 40 | |
| 41 | if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR)) |
| 42 | return FALSE; |
| 43 | |
| 44 | err = g_io_channel_read(chan, reinterpret_cast<gchar *>(buf), sizeof(buf), |
| 45 | &len); |
| 46 | if (err) { |
| 47 | if (err == G_IO_ERROR_AGAIN) |
| 48 | return TRUE; |
| 49 | return FALSE; |
| 50 | } |
| 51 | |
| 52 | InputData input_data = { buf, len }; |
| 53 | handler->callback_->Run(&input_data); |
| 54 | |
| 55 | return TRUE; |
| 56 | } |
| 57 | |
| 58 | } // namespace shill |