diff options
author | Max Kellermann <max@duempel.org> | 2012-07-30 06:57:49 +0200 |
---|---|---|
committer | Max Kellermann <max@duempel.org> | 2012-07-30 06:57:49 +0200 |
commit | 60ac702038fa3e74d8851c8ba6a69f2a9c4fc303 (patch) | |
tree | 9b05a311a0757a0936949ba7150a8f8596b819f6 /src/tcp_socket.c | |
parent | 1dedb96478ab324104181a02bf65d928cc8e3766 (diff) | |
download | mpd-60ac702038fa3e74d8851c8ba6a69f2a9c4fc303.tar.gz mpd-60ac702038fa3e74d8851c8ba6a69f2a9c4fc303.tar.xz mpd-60ac702038fa3e74d8851c8ba6a69f2a9c4fc303.zip |
tcp_socket, ...: remove obsolet RAOP sources
Diffstat (limited to 'src/tcp_socket.c')
-rw-r--r-- | src/tcp_socket.c | 377 |
1 files changed, 0 insertions, 377 deletions
diff --git a/src/tcp_socket.c b/src/tcp_socket.c deleted file mode 100644 index bfed4dc56..000000000 --- a/src/tcp_socket.c +++ /dev/null @@ -1,377 +0,0 @@ -/* - * Copyright (C) 2003-2011 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "tcp_socket.h" -#include "fifo_buffer.h" -#include "io_thread.h" -#include "glib_socket.h" - -#include <assert.h> -#include <string.h> - -#ifdef WIN32 -#include <ws2tcpip.h> -#include <winsock.h> -#else -#include <sys/socket.h> -#include <netinet/in.h> -#endif - -struct tcp_socket { - const struct tcp_socket_handler *handler; - void *handler_ctx; - - GMutex *mutex; - - GIOChannel *channel; - GSource *in_source, *out_source; - - struct fifo_buffer *input, *output; -}; - -static gboolean -tcp_event(GIOChannel *source, GIOCondition condition, gpointer data); - -static void -tcp_socket_schedule_read(struct tcp_socket *s) -{ - assert(s->input != NULL); - assert(!fifo_buffer_is_full(s->input)); - - if (s->in_source != NULL) - return; - - s->in_source = g_io_create_watch(s->channel, - G_IO_IN|G_IO_ERR|G_IO_HUP); - g_source_set_callback(s->in_source, (GSourceFunc)tcp_event, s, NULL); - g_source_attach(s->in_source, io_thread_context()); -} - -static void -tcp_socket_unschedule_read(struct tcp_socket *s) -{ - if (s->in_source == NULL) - return; - - g_source_destroy(s->in_source); - g_source_unref(s->in_source); - s->in_source = NULL; -} - -static void -tcp_socket_schedule_write(struct tcp_socket *s) -{ - assert(s->output != NULL); - assert(!fifo_buffer_is_empty(s->output)); - - if (s->out_source != NULL) - return; - - s->out_source = g_io_create_watch(s->channel, G_IO_OUT); - g_source_set_callback(s->out_source, (GSourceFunc)tcp_event, s, NULL); - g_source_attach(s->out_source, io_thread_context()); -} - -static void -tcp_socket_unschedule_write(struct tcp_socket *s) -{ - if (s->out_source == NULL) - return; - - g_source_destroy(s->out_source); - g_source_unref(s->out_source); - s->out_source = NULL; -} - -/** - * Close the socket. Caller must lock the mutex. - */ -static void -tcp_socket_close(struct tcp_socket *s) -{ - tcp_socket_unschedule_read(s); - tcp_socket_unschedule_write(s); - - if (s->channel != NULL) { - g_io_channel_unref(s->channel); - s->channel = NULL; - } - - if (s->input != NULL) { - fifo_buffer_free(s->input); - s->input = NULL; - } - - if (s->output != NULL) { - fifo_buffer_free(s->output); - s->output = NULL; - } -} - -static gpointer -tcp_socket_close_callback(gpointer data) -{ - struct tcp_socket *s = data; - - g_mutex_lock(s->mutex); - tcp_socket_close(s); - g_mutex_unlock(s->mutex); - - return NULL; -} - -static void -tcp_socket_close_indirect(struct tcp_socket *s) -{ - io_thread_call(tcp_socket_close_callback, s); - - assert(s->channel == NULL); - assert(s->in_source == NULL); - assert(s->out_source == NULL); -} - -static void -tcp_handle_input(struct tcp_socket *s) -{ - size_t length; - const void *p = fifo_buffer_read(s->input, &length); - if (p == NULL) - return; - - g_mutex_unlock(s->mutex); - size_t consumed = s->handler->data(p, length, s->handler_ctx); - g_mutex_lock(s->mutex); - if (consumed > 0 && s->input != NULL) - fifo_buffer_consume(s->input, consumed); -} - -static bool -tcp_in_event(struct tcp_socket *s) -{ - assert(s != NULL); - assert(s->channel != NULL); - - g_mutex_lock(s->mutex); - - size_t max_length; - void *p = fifo_buffer_write(s->input, &max_length); - if (p == NULL) { - GError *error = g_error_new_literal(tcp_socket_quark(), 0, - "buffer overflow"); - tcp_socket_close(s); - g_mutex_unlock(s->mutex); - s->handler->error(error, s->handler_ctx); - return false; - } - - gsize bytes_read; - GError *error = NULL; - GIOStatus status = g_io_channel_read_chars(s->channel, - p, max_length, - &bytes_read, &error); - switch (status) { - case G_IO_STATUS_NORMAL: - fifo_buffer_append(s->input, bytes_read); - tcp_handle_input(s); - g_mutex_unlock(s->mutex); - return true; - - case G_IO_STATUS_AGAIN: - /* try again later */ - g_mutex_unlock(s->mutex); - return true; - - case G_IO_STATUS_EOF: - /* peer disconnected */ - tcp_socket_close(s); - g_mutex_unlock(s->mutex); - s->handler->disconnected(s->handler_ctx); - return false; - - case G_IO_STATUS_ERROR: - /* I/O error */ - tcp_socket_close(s); - g_mutex_unlock(s->mutex); - s->handler->error(error, s->handler_ctx); - return false; - } - - /* unreachable */ - assert(false); - return true; -} - -static bool -tcp_out_event(struct tcp_socket *s) -{ - assert(s != NULL); - assert(s->channel != NULL); - - g_mutex_lock(s->mutex); - - size_t length; - const void *p = fifo_buffer_read(s->output, &length); - if (p == NULL) { - /* no more data in the output buffer, remove the - output event */ - tcp_socket_unschedule_write(s); - g_mutex_unlock(s->mutex); - return false; - } - - gsize bytes_written; - GError *error = NULL; - GIOStatus status = g_io_channel_write_chars(s->channel, p, length, - &bytes_written, &error); - switch (status) { - case G_IO_STATUS_NORMAL: - fifo_buffer_consume(s->output, bytes_written); - g_mutex_unlock(s->mutex); - return true; - - case G_IO_STATUS_AGAIN: - tcp_socket_schedule_write(s); - g_mutex_unlock(s->mutex); - return true; - - case G_IO_STATUS_EOF: - /* peer disconnected */ - tcp_socket_close(s); - g_mutex_unlock(s->mutex); - s->handler->disconnected(s->handler_ctx); - return false; - - case G_IO_STATUS_ERROR: - /* I/O error */ - tcp_socket_close(s); - g_mutex_unlock(s->mutex); - s->handler->error(error, s->handler_ctx); - return false; - } - - /* unreachable */ - g_mutex_unlock(s->mutex); - assert(false); - return true; -} - -static gboolean -tcp_event(G_GNUC_UNUSED GIOChannel *source, GIOCondition condition, - gpointer data) -{ - struct tcp_socket *s = data; - - assert(source == s->channel); - - switch (condition) { - case G_IO_IN: - case G_IO_PRI: - return tcp_in_event(s); - - case G_IO_OUT: - return tcp_out_event(s); - - case G_IO_ERR: - case G_IO_HUP: - case G_IO_NVAL: - tcp_socket_close(s); - s->handler->disconnected(s->handler_ctx); - return false; - } - - /* unreachable */ - assert(false); - return false; -} - -struct tcp_socket * -tcp_socket_new(int fd, - const struct tcp_socket_handler *handler, void *ctx) -{ - assert(fd >= 0); - assert(handler != NULL); - assert(handler->data != NULL); - assert(handler->error != NULL); - assert(handler->disconnected != NULL); - - struct tcp_socket *s = g_new(struct tcp_socket, 1); - s->handler = handler; - s->handler_ctx = ctx; - s->mutex = g_mutex_new(); - - g_mutex_lock(s->mutex); - - s->channel = g_io_channel_new_socket(fd); - /* GLib is responsible for closing the file descriptor */ - g_io_channel_set_close_on_unref(s->channel, true); - /* NULL encoding means the stream is binary safe */ - g_io_channel_set_encoding(s->channel, NULL, NULL); - /* no buffering */ - g_io_channel_set_buffered(s->channel, false); - - s->input = fifo_buffer_new(4096); - s->output = fifo_buffer_new(4096); - - s->in_source = NULL; - s->out_source = NULL; - - tcp_socket_schedule_read(s); - - g_mutex_unlock(s->mutex); - - return s; -} - -void -tcp_socket_free(struct tcp_socket *s) -{ - tcp_socket_close_indirect(s); - g_mutex_free(s->mutex); - g_free(s); -} - -bool -tcp_socket_send(struct tcp_socket *s, const void *data, size_t length) -{ - assert(s != NULL); - - g_mutex_lock(s->mutex); - - if (s->output == NULL || s->channel == NULL) { - /* already disconnected */ - g_mutex_unlock(s->mutex); - return false; - } - - size_t max_length; - void *p = fifo_buffer_write(s->output, &max_length); - if (p == NULL || max_length < length) { - /* buffer is full */ - g_mutex_unlock(s->mutex); - return false; - } - - memcpy(p, data, length); - fifo_buffer_append(s->output, length); - tcp_socket_schedule_write(s); - - g_mutex_unlock(s->mutex); - return true; -} - |