176 lines
3.9 KiB
C
176 lines
3.9 KiB
C
/*
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* Copyright (C) 2003-2011 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_CLIENT_INTERNAL_H
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#define MPD_CLIENT_INTERNAL_H
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#include "client.h"
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#include "client_message.h"
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#include "command.h"
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#undef G_LOG_DOMAIN
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#define G_LOG_DOMAIN "client"
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enum {
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CLIENT_MAX_SUBSCRIPTIONS = 16,
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CLIENT_MAX_MESSAGES = 64,
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};
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struct deferred_buffer {
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size_t size;
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char data[sizeof(long)];
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};
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struct client {
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struct player_control *player_control;
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GIOChannel *channel;
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guint source_id;
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/** the buffer for reading lines from the #channel */
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struct fifo_buffer *input;
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unsigned permission;
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/** the uid of the client process, or -1 if unknown */
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int uid;
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/**
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* How long since the last activity from this client?
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*/
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GTimer *last_activity;
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GSList *cmd_list; /* for when in list mode */
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int cmd_list_OK; /* print OK after each command execution */
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size_t cmd_list_size; /* mem cmd_list consumes */
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GQueue *deferred_send; /* for output if client is slow */
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size_t deferred_bytes; /* mem deferred_send consumes */
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unsigned int num; /* client number */
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char send_buf[16384];
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size_t send_buf_used; /* bytes used this instance */
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/** is this client waiting for an "idle" response? */
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bool idle_waiting;
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/** idle flags pending on this client, to be sent as soon as
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the client enters "idle" */
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unsigned idle_flags;
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/** idle flags that the client wants to receive */
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unsigned idle_subscriptions;
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/**
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* A list of channel names this client is subscribed to.
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*/
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GSList *subscriptions;
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/**
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* The number of subscriptions in #subscriptions. Used to
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* limit the number of subscriptions.
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*/
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unsigned num_subscriptions;
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/**
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* A list of messages this client has received in reverse
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* order (latest first).
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*/
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GSList *messages;
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/**
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* The number of messages in #messages.
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*/
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unsigned num_messages;
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};
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extern unsigned int client_max_connections;
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extern int client_timeout;
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extern size_t client_max_command_list_size;
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extern size_t client_max_output_buffer_size;
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bool
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client_list_is_empty(void);
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bool
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client_list_is_full(void);
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struct client *
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client_list_get_first(void);
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void
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client_list_add(struct client *client);
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void
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client_list_foreach(GFunc func, gpointer user_data);
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void
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client_list_remove(struct client *client);
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void
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client_close(struct client *client);
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static inline void
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new_cmd_list_ptr(struct client *client, const char *s)
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{
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client->cmd_list = g_slist_prepend(client->cmd_list, g_strdup(s));
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}
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static inline void
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free_cmd_list(GSList *list)
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{
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for (GSList *tmp = list; tmp != NULL; tmp = g_slist_next(tmp))
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g_free(tmp->data);
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g_slist_free(list);
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}
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void
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client_set_expired(struct client *client);
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/**
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* Schedule an "expired" check for all clients: permanently delete
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* clients which have been set "expired" with client_set_expired().
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*/
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void
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client_schedule_expire(void);
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/**
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* Removes a scheduled "expired" check.
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*/
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void
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client_deinit_expire(void);
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enum command_return
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client_read(struct client *client);
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enum command_return
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client_process_line(struct client *client, char *line);
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void
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client_write_deferred(struct client *client);
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void
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client_write_output(struct client *client);
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gboolean
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client_in_event(GIOChannel *source, GIOCondition condition,
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gpointer data);
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#endif
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