mirror of
https://github.com/irssi/irssi.git
synced 2026-08-11 12:53:42 +02:00
/UPGRADE - upgrade-on-the-fly feature. Currently only moves the active
server connections to the new irssi process, but that should be enough to never quit from IRC again :) git-svn-id: http://svn.irssi.org/repos/irssi/trunk@2070 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen
cras
parent
ff2357f16b
commit
bbbb36cf19
11 changed files with 366 additions and 6 deletions
233
src/core/session.c
Normal file
233
src/core/session.c
Normal file
|
|
@ -0,0 +1,233 @@
|
|||
/*
|
||||
session.c : irssi
|
||||
|
||||
Copyright (C) 2001 Timo Sirainen
|
||||
|
||||
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include "module.h"
|
||||
#include "signals.h"
|
||||
#include "commands.h"
|
||||
#include "args.h"
|
||||
#include "net-sendbuffer.h"
|
||||
#include "lib-config/iconfig.h"
|
||||
|
||||
#include "chat-protocols.h"
|
||||
#include "servers.h"
|
||||
#include "servers-setup.h"
|
||||
|
||||
static char *session_file;
|
||||
static const char *irssi_binary; /* from argv[0] */
|
||||
|
||||
static GIOChannel *next_handle;
|
||||
|
||||
void session_set_binary(const char *path)
|
||||
{
|
||||
irssi_binary = path;
|
||||
}
|
||||
|
||||
static void cmd_upgrade(const char *data)
|
||||
{
|
||||
CONFIG_REC *session;
|
||||
GSList *file_handles;
|
||||
const char *args[10];
|
||||
char *session_file;
|
||||
int pid, n;
|
||||
|
||||
if (*data == '\0')
|
||||
data = irssi_binary;
|
||||
|
||||
/* make sure we can execute it */
|
||||
if (access(data, X_OK) != 0)
|
||||
cmd_return_error(CMDERR_ERRNO);
|
||||
|
||||
/* save the session */
|
||||
session_file = g_strdup_printf("%s/session.%d", get_irssi_dir(), getpid());
|
||||
unlink(session_file);
|
||||
session = config_open(session_file, 0600);
|
||||
|
||||
file_handles = NULL;
|
||||
signal_emit("session save", 2, session, &file_handles);
|
||||
config_write(session, NULL, -1);
|
||||
config_close(session);
|
||||
|
||||
/* start it .. */
|
||||
pid = fork();
|
||||
if (pid == -1)
|
||||
cmd_return_error(CMDERR_ERRNO);
|
||||
|
||||
if (pid == 0) {
|
||||
/* we're the child - we want to send the server connections
|
||||
to the new binary here */
|
||||
g_free(session_file);
|
||||
exit(0);
|
||||
} else {
|
||||
/* we're the old process - exec() the new binary here so
|
||||
the TTY won't get lost */
|
||||
signal_emit("session clean", 0);
|
||||
for (n = 3; n < 256; n++) {
|
||||
if (g_slist_find(file_handles, GINT_TO_POINTER(n)) == NULL)
|
||||
close(n);
|
||||
}
|
||||
g_slist_free(file_handles),
|
||||
|
||||
args[0] = data;
|
||||
args[1] = "--session";
|
||||
args[2] = session_file;
|
||||
args[3] = "-!";
|
||||
args[4] = NULL;
|
||||
execvp(args[0], (char **) args);
|
||||
|
||||
fprintf(stderr, "exec: %s: %s\n", args[0], g_strerror(errno));
|
||||
_exit(-1);
|
||||
}
|
||||
}
|
||||
|
||||
static void session_save_server(SERVER_REC *server, CONFIG_REC *config,
|
||||
CONFIG_NODE *node, GSList **file_handles)
|
||||
{
|
||||
int handle;
|
||||
|
||||
node = config_node_section(node, NULL, NODE_TYPE_BLOCK);
|
||||
|
||||
config_node_set_str(config, node, "chat_type",
|
||||
chat_protocol_find_id(server->chat_type)->name);
|
||||
config_node_set_str(config, node, "address", server->connrec->address);
|
||||
config_node_set_int(config, node, "port", server->connrec->port);
|
||||
config_node_set_str(config, node, "chatnet", server->connrec->chatnet);
|
||||
config_node_set_str(config, node, "password", server->connrec->password);
|
||||
config_node_set_str(config, node, "nick", server->nick);
|
||||
|
||||
handle = g_io_channel_unix_get_fd(net_sendbuffer_handle(server->handle));
|
||||
*file_handles = g_slist_append(*file_handles, GINT_TO_POINTER(handle));
|
||||
config_node_set_int(config, node, "handle", handle);
|
||||
|
||||
signal_emit("session save server", 4,
|
||||
server, config, node, file_handles);
|
||||
}
|
||||
|
||||
static void session_restore_server(CONFIG_NODE *node)
|
||||
{
|
||||
CHAT_PROTOCOL_REC *proto;
|
||||
SERVER_CONNECT_REC *conn;
|
||||
SERVER_REC *server;
|
||||
const char *chat_type, *address, *chatnet, *password, *nick;
|
||||
int port, handle;
|
||||
|
||||
chat_type = config_node_get_str(node, "chat_type", NULL);
|
||||
address = config_node_get_str(node, "address", NULL);
|
||||
port = config_node_get_int(node, "port", 0);
|
||||
chatnet = config_node_get_str(node, "chatnet", NULL);
|
||||
password = config_node_get_str(node, "password", NULL);
|
||||
nick = config_node_get_str(node, "nick", NULL);
|
||||
handle = config_node_get_int(node, "handle", -1);
|
||||
|
||||
if (chat_type == NULL || address == NULL || nick == NULL || handle < 0)
|
||||
return;
|
||||
|
||||
proto = chat_protocol_find(chat_type);
|
||||
if (proto == NULL || proto->not_initialized)
|
||||
return;
|
||||
|
||||
conn = server_create_conn(proto->id, address, port,
|
||||
chatnet, password, nick);
|
||||
if (conn != NULL) {
|
||||
next_handle = g_io_channel_unix_new(handle);
|
||||
conn->reconnection = TRUE;
|
||||
|
||||
server = proto->server_connect(conn);
|
||||
server->session_reconnect = TRUE;
|
||||
|
||||
signal_emit("session restore server", 2, server, node);
|
||||
}
|
||||
}
|
||||
|
||||
static void sig_session_save(CONFIG_REC *config, GSList **file_handles)
|
||||
{
|
||||
CONFIG_NODE *node;
|
||||
GSList *tmp;
|
||||
|
||||
node = config_node_traverse(config, "(servers", TRUE);
|
||||
for (tmp = servers; tmp != NULL; tmp = tmp->next)
|
||||
session_save_server(tmp->data, config, node, file_handles);
|
||||
}
|
||||
|
||||
static void sig_session_restore(CONFIG_REC *config)
|
||||
{
|
||||
CONFIG_NODE *node;
|
||||
GSList *tmp;
|
||||
|
||||
node = config_node_traverse(config, "(servers", FALSE);
|
||||
if (node != NULL) {
|
||||
for (tmp = node->value; tmp != NULL; tmp = config_node_next(tmp))
|
||||
session_restore_server(tmp->data);
|
||||
}
|
||||
}
|
||||
|
||||
static void sig_init_finished(void)
|
||||
{
|
||||
CONFIG_REC *session;
|
||||
|
||||
if (session_file == NULL)
|
||||
return;
|
||||
|
||||
session = config_open(session_file, -1);
|
||||
if (session == NULL)
|
||||
return;
|
||||
|
||||
config_parse(session);
|
||||
signal_emit("session restore", 1, session);
|
||||
config_close(session);
|
||||
|
||||
unlink(session_file);
|
||||
session_file = NULL;
|
||||
}
|
||||
|
||||
static void sig_connecting(SERVER_REC *server, IPADDR *ip, GIOChannel **handle)
|
||||
{
|
||||
*handle = next_handle;
|
||||
next_handle = NULL;
|
||||
}
|
||||
|
||||
void session_init(void)
|
||||
{
|
||||
static struct poptOption options[] = {
|
||||
{ "session", 0, POPT_ARG_STRING, &session_file, 0, "", "" },
|
||||
{ NULL, '\0', 0, NULL }
|
||||
};
|
||||
|
||||
session_file = NULL;
|
||||
args_register(options);
|
||||
|
||||
command_bind("upgrade", NULL, (SIGNAL_FUNC) cmd_upgrade);
|
||||
|
||||
signal_add("session save", (SIGNAL_FUNC) sig_session_save);
|
||||
signal_add("session restore", (SIGNAL_FUNC) sig_session_restore);
|
||||
signal_add("irssi init finished", (SIGNAL_FUNC) sig_init_finished);
|
||||
|
||||
signal_add("server connecting", (SIGNAL_FUNC) sig_connecting);
|
||||
}
|
||||
|
||||
void session_deinit(void)
|
||||
{
|
||||
command_unbind("upgrade", (SIGNAL_FUNC) cmd_upgrade);
|
||||
|
||||
signal_remove("session save", (SIGNAL_FUNC) sig_session_save);
|
||||
signal_remove("session restore", (SIGNAL_FUNC) sig_session_restore);
|
||||
signal_remove("irssi init finished", (SIGNAL_FUNC) sig_init_finished);
|
||||
|
||||
signal_remove("server connecting", (SIGNAL_FUNC) sig_connecting);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue