/* (Unix domain) socket support to replace the old FIFO code
* (taken from Sylpheed, thanks)
* Returns the created socket, -1 if an error occurred or -2 if another socket exists and files
* were sent to it. */
gint socket_init(gint argc, gchar **argv)
{
gint sock;
#ifdef G_OS_WIN32
HANDLE hmutex;
HWND hwnd;
socket_init_win32();
hmutex = CreateMutexA(NULL, FALSE, "Geany");
if (! hmutex)
{
geany_debug("cannot create Mutex\n");
return -1;
}
if (GetLastError() != ERROR_ALREADY_EXISTS)
{
/* To support multiple instances with different configuration directories (as we do on
* non-Windows systems) we would need to use different port number s but it might be
* difficult to get a port number which is unique for a configuration directory (path)
* and which is unused. This port number has to be guessed by the first and new instance
* and the only data is the configuration directory path.
* For now we use one port number, that is we support only one instance at all. */
sock = socket_fd_open_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
return sock;
}
sock = socket_fd_connect_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
#else
gchar *display_name = NULL;
const gchar *hostname = g_get_host_name();
GdkDisplay *display = gdk_display_get_default();
gchar *p;
/* On OS X with quartz backend gdk_display_get_name() returns hostname
* using [NSHost currentHost] (it could return more or less whatever string
* as display name is a X11 specific thing). This call can lead to network
* query and block for several seconds so better skip it. */
#ifndef GDK_WINDOWING_QUARTZ
if (display != NULL)
display_name = g_strdup(gdk_display_get_name(display));
#endif
if (display_name == NULL)
display_name = g_strdup("NODISPLAY");
/* these lines are taken from dcopc.c in kdelibs */
if ((p = strrchr(display_name, '.')) > strrchr(display_name, ':') && p != NULL)
*p = '\0';
/* remove characters that may not be acceptable in a filename */
for (p = display_name; *p; p++)
{
if (*p == ':' || *p == '/')
*p = '_';
}
if (socket_info.file_name == NULL)
socket_info.file_name = g_strdup_printf("%s%cgeany_socket_%s_%s",
app->configdir, G_DIR_SEPARATOR, hostname, display_name);
g_free(display_name);
/* check whether the real user id is the same as this of the socket file */
check_socket_permissions();
sock = socket_fd_connect_unix(socket_info.file_name);
if (sock < 0)
{
remove_socket_link_full(); /* deletes the socket file and the symlink */
return socket_fd_open_unix(socket_info.file_name);
}
#endif
/* remote command mode, here we have another running instance and want to use it */
/* now we send the command line args */
if (argc > 1)
{
#ifdef G_OS_WIN32
/* first we send a request to retrieve the window handle and focus the window */
socket_fd_write_all(sock, "window\n", 7);
if (socket_fd_read(sock, (gchar *)&hwnd, sizeof(hwnd)) == sizeof(hwnd))
SetForegroundWindow(hwnd);
#endif
send_open_command(sock, argc, argv);
}
if (cl_options.list_documents)
{
socket_get_document_list(sock);
}
socket_fd_close(sock);
return -2;
}
/* (Unix domain) socket support to replace the old FIFO code
* (taken from Sylpheed, thanks)
* Returns the created socket, -1 if an error occurred or -2 if another socket exists and files
* were sent to it. */
gint socket_init(gint argc, gchar **argv)
{
gint sock;
#ifdef G_OS_WIN32
HANDLE hmutex;
HWND hwnd;
socket_init_win32();
hmutex = CreateMutexA(NULL, FALSE, "Geany");
if (! hmutex)
{
geany_debug("cannot create Mutex\n");
return -1;
}
if (GetLastError() != ERROR_ALREADY_EXISTS)
{
/* To support multiple instances with different configuration directories (as we do on
* non-Windows systems) we would need to use different port number s but it might be
* difficult to get a port number which is unique for a configuration directory (path)
* and which is unused. This port number has to be guessed by the first and new instance
* and the only data is the configuration directory path.
* For now we use one port number, that is we support only one instance at all. */
sock = socket_fd_open_inet(REMOTE_CMD_PORT);
if (sock < 0)
return 0;
return sock;
}
sock = socket_fd_connect_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
#else
gchar *display_name = gdk_get_display();
gchar *hostname = utils_get_hostname();
gchar *p;
if (display_name == NULL)
display_name = g_strdup("NODISPLAY");
/* these lines are taken from dcopc.c in kdelibs */
if ((p = strrchr(display_name, '.')) > strrchr(display_name, ':') && p != NULL)
*p = '\0';
while ((p = strchr(display_name, ':')) != NULL)
*p = '_';
if (socket_info.file_name == NULL)
socket_info.file_name = g_strdup_printf("%s%cgeany_socket_%s_%s",
app->configdir, G_DIR_SEPARATOR, hostname, display_name);
g_free(display_name);
g_free(hostname);
/* check whether the real user id is the same as this of the socket file */
check_socket_permissions();
sock = socket_fd_connect_unix(socket_info.file_name);
if (sock < 0)
{
remove_socket_link_full(); /* deletes the socket file and the symlink */
return socket_fd_open_unix(socket_info.file_name);
}
#endif
/* remote command mode, here we have another running instance and want to use it */
#ifdef G_OS_WIN32
/* first we send a request to retrieve the window handle and focus the window */
socket_fd_write_all(sock, "window\n", 7);
if (socket_fd_read(sock, (gchar *)&hwnd, sizeof(hwnd)) == sizeof(hwnd))
SetForegroundWindow(hwnd);
#endif
/* now we send the command line args */
if (argc > 1)
{
send_open_command(sock, argc, argv);
}
if (cl_options.list_documents)
{
socket_get_document_list(sock);
}
socket_fd_close(sock);
return -2;
}
