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-rw-r--r--src/tcp_socket.c377
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;
-}
-
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