83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/*
|
|
* vim:ts=4:sw=4:expandtab
|
|
*
|
|
* i3 - an improved dynamic tiling window manager
|
|
* © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
|
|
*
|
|
* ipc.c: UNIX domain socket IPC (initialization, client handling, protocol).
|
|
*
|
|
*/
|
|
#pragma once
|
|
|
|
#include <ev.h>
|
|
#include <stdbool.h>
|
|
#include <yajl/yajl_gen.h>
|
|
#include <yajl/yajl_parse.h>
|
|
|
|
#include "data.h"
|
|
#include "tree.h"
|
|
|
|
#include "i3/ipc.h"
|
|
|
|
extern char *current_socketpath;
|
|
|
|
typedef struct ipc_client {
|
|
int fd;
|
|
|
|
/* The events which this client wants to receive */
|
|
int num_events;
|
|
char **events;
|
|
|
|
TAILQ_ENTRY(ipc_client) clients;
|
|
} ipc_client;
|
|
|
|
/*
|
|
* Callback type for the different message types.
|
|
*
|
|
* message is the raw packet, as received from the UNIX domain socket. size
|
|
* is the remaining size of bytes for this packet.
|
|
*
|
|
* message_size is the size of the message as the sender specified it.
|
|
* message_type is the type of the message as the sender specified it.
|
|
*
|
|
*/
|
|
typedef void(*handler_t)(int, uint8_t*, int, uint32_t, uint32_t);
|
|
|
|
/* Macro to declare a callback */
|
|
#define IPC_HANDLER(name) \
|
|
static void handle_ ## name (int fd, uint8_t *message, \
|
|
int size, uint32_t message_size, \
|
|
uint32_t message_type)
|
|
|
|
/**
|
|
* Handler for activity on the listening socket, meaning that a new client
|
|
* has just connected and we should accept() him. Sets up the event handler
|
|
* for activity on the new connection and inserts the file descriptor into
|
|
* the list of clients.
|
|
*
|
|
*/
|
|
void ipc_new_client(EV_P_ struct ev_io *w, int revents);
|
|
|
|
/**
|
|
* Creates the UNIX domain socket at the given path, sets it to non-blocking
|
|
* mode, bind()s and listen()s on it.
|
|
*
|
|
*/
|
|
int ipc_create_socket(const char *filename);
|
|
|
|
/**
|
|
* Sends the specified event to all IPC clients which are currently connected
|
|
* and subscribed to this kind of event.
|
|
*
|
|
*/
|
|
void ipc_send_event(const char *event, uint32_t message_type, const char *payload);
|
|
|
|
/**
|
|
* Calls shutdown() on each socket and closes it. This function to be called
|
|
* when exiting or restarting only!
|
|
*
|
|
*/
|
|
void ipc_shutdown(void);
|
|
|
|
void dump_node(yajl_gen gen, Con *con, bool inplace_restart);
|