/***************************************************************************
*
* Waits for next X event, or for an auto-raise timeout.
*
****************************************************************************/
int My_XNextEvent(Display *dpy, XEvent *event)
{
fd_set in_fdset;
static int miss_counter = 0;
if(XPending(dpy))
{
XNextEvent(dpy,event);
return 1;
}
FD_ZERO(&in_fdset);
FD_SET(x_fd,&in_fdset);
FD_SET(fd[1],&in_fdset);
if (fvwmSelect(fd_width, &in_fdset, 0, 0, NULL) > 0)
{
if(FD_ISSET(x_fd, &in_fdset))
{
if(XPending(dpy))
{
XNextEvent(dpy,event);
miss_counter = 0;
return 1;
}
miss_counter++;
#ifdef WORRY_ABOUT_MISSED_XEVENTS
if(miss_counter > 100)
DeadPipe(0);
#endif
}
if(FD_ISSET(fd[1], &in_fdset))
{
FvwmPacket* packet = ReadFvwmPacket(fd[1]);
if ( packet == NULL )
exit(0);
process_message( packet );
}
}
return 0;
}
/*
*
* send command to and receive message from the server
*
*/
int main ( int argc, char *argv[])
{
char cmd[MAX_MODULE_INPUT_TEXT_LEN + 1];
char *f_stem, *fc_name, *fm_name;
char *sf_stem;
char *s;
int i;
int opt;
int ncnt;
int count;
int Rc;
struct timeval tv2;
extern char *optarg;
extern int optind;
#ifdef HAVE_SIGACTION
{
struct sigaction sigact;
sigemptyset(&sigact.sa_mask);
#ifdef SA_RESTART
sigact.sa_flags = SA_RESTART;
#else
sigact.sa_flags = 0;
#endif
sigact.sa_handler = sig_ttin;
sigaction(SIGTTIN, &sigact, NULL);
sigaction(SIGTTOU, &sigact, NULL);
sigaddset(&sigact.sa_mask, SIGINT);
sigaddset(&sigact.sa_mask, SIGHUP);
sigaddset(&sigact.sa_mask, SIGQUIT);
sigaddset(&sigact.sa_mask, SIGTERM);
#ifdef SA_INTERRUPT
sigact.sa_flags = SA_INTERRUPT;
#else
sigact.sa_flags = 0;
#endif
sigact.sa_handler = sig_quit;
sigaction(SIGINT, &sigact, NULL);
sigaction(SIGHUP, &sigact, NULL);
sigaction(SIGQUIT, &sigact, NULL);
sigaction(SIGTERM, &sigact, NULL);
sigaction(SIGPIPE, &sigact, NULL);
}
#else
#ifdef USE_BSD_SIGNALS
fvwmSetSignalMask(
sigmask(SIGINT) | sigmask(SIGHUP) | sigmask(SIGQUIT) |
sigmask(SIGTERM) | sigmask(SIGPIPE));
#endif
signal(SIGINT, sig_quit);
signal(SIGHUP, sig_quit);
signal(SIGQUIT, sig_quit);
signal(SIGTERM, sig_quit);
signal(SIGPIPE, sig_quit);
signal(SIGTTIN, sig_ttin);
signal(SIGTTOU, sig_ttin);
#ifdef HAVE_SIGINTERRUPT
siginterrupt(SIGINT, 1);
siginterrupt(SIGHUP, 1);
siginterrupt(SIGQUIT, 1);
siginterrupt(SIGTERM, 1);
siginterrupt(SIGPIPE, 1);
siginterrupt(SIGTTIN, 0);
siginterrupt(SIGTTOU, 0);
#endif
#endif
Opt_reply = 0;
Opt_info = -1;
f_stem = NULL;
sf_stem = NULL;
Opt_monitor = 0;
Opt_stdin = 0;
Opt_Serv = 0;
Opt_flags = 2;
Tv.tv_sec = 0;
Tv.tv_usec = 500000;
Rc = 0;
Bg = 0;
while( (opt = getopt( argc, argv, "S:hvF:f:w:i:rmc" )) != EOF )
{
switch(opt)
{
case 'h':
usage();
exit(0);
break;
case 'f':
f_stem = optarg;
break;
case 'F':
Opt_flags = atoi (optarg);
break;
case 'S':
sf_stem = optarg;
Opt_Serv = 1;
break;
case 'i':
Opt_info = atoi( optarg );
break;
case 'v':
printf("%s %s\n", MYNAME, VERSION );
exit(0);
case 'w':
Tv.tv_usec = atoi( optarg ) % 1000000;
Tv.tv_sec = atoi( optarg ) / 1000000;
break;
case 'm':
Opt_monitor = 1;
break;
case 'r':
Opt_reply = 1;
break;
case 'c':
Opt_stdin = 1;
break;
case '?':
exit(3);
}
}
if( f_stem == NULL )
{
if ((f_stem = fifos_get_default_name()) == NULL)
{
fprintf (stderr, "\n%s can't decide on fifo-name. "
"Make sure that $FVWM_USERDIR is set.\n",
MYNAME );
exit(1);
}
}
/* create 2 fifos */
fm_name = safemalloc( strlen(f_stem) + 2 );
strcpy(fm_name,f_stem);
strcat(fm_name, "M");
fc_name = safemalloc( strlen(f_stem) + 2 );
strcpy(fc_name,f_stem);
strcat(fc_name, "C");
s = safemalloc( strlen(f_stem) + 2 );
strcpy(s,f_stem);
strcat(s, "R");
Fdrun = open(s, O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW, 0600);
if (Fdrun < 0)
{
FILE *f;
if ((f = fopen (s,"r" )) != NULL)
{
char *p;
*cmd = 0;
p = fgets(cmd, 20, f);
(void)p;
fclose(f);
fprintf (stderr, "\nFvwmCommand lock file %sR is detected. "
"This may indicate another FvwmCommand is running. "
"It appears to be running under process ID:\n%s\n",
f_stem, (*cmd) ? cmd : "(unknown)" );
fprintf (stderr, "You may either kill the process or run FvwmCommand "
"with another FIFO set using option -S and -f. "
"If the process doesn't exist, simply remove file:\n%sR\n\n",
f_stem);
exit(1);
}
else
{
err_quit ("writing lock file");
}
}
Fr_name = s;
if( Opt_Serv )
{
int n;
sprintf (cmd,"%s '%sS %s'", argv[0], MYNAME, sf_stem);
n = system (cmd);
(void)n;
}
{
char buf[64];
int n;
sprintf(buf, "%d\n", (int)getpid());
n = write(Fdrun, buf, strlen(buf));
(void)n;
close(Fdrun);
}
Fdr = Fdw = -1;
count = 0;
while ((Fdr=open (fm_name, O_RDONLY | O_NOFOLLOW)) < 0)
{
if (count++>5)
{
err_quit ("opening message fifo");
}
sleep(1);
}
count = 0;
while ((Fdw=open (fc_name, O_WRONLY | O_NOFOLLOW)) < 0)
{
if (count++>2)
{
err_quit ("opening command fifo");
}
sleep(1);
}
i = optind;
if (Opt_stdin)
{
while (fgets(cmd, MAX_MODULE_INPUT_TEXT_LEN - 1, stdin))
{
sendit(cmd);
}
}
else if( Opt_monitor )
{
/* test if its stdin is closed for coprocess */
tv2.tv_sec = 0;
tv2.tv_usec = 5;
FD_ZERO(&fdset);
FD_SET(STDIN_FILENO, &fdset);
ncnt = fvwmSelect(FD_SETSIZE, &fdset, 0, 0, &tv2);
if( ncnt && (fgets( cmd, 1, stdin )==0 || cmd[0] == 0))
{
Bg = 1;
}
/* line buffer stdout for coprocess */
setvbuf( stdout, NULL, _IOLBF, 0);
/* send arguments first */
for( ;i < argc; i++ )
{
strncpy( cmd, argv[i], MAX_MODULE_INPUT_TEXT_LEN - 1 );
sendit( cmd );
}
while( !isTerminated )
{
FD_ZERO(&fdset);
FD_SET(Fdr, &fdset);
if( Bg == 0 )
{
FD_SET(STDIN_FILENO, &fdset);
}
ncnt = fvwmSelect(FD_SETSIZE, &fdset, 0, 0, NULL);
/* message from fvwm */
if (FD_ISSET(Fdr, &fdset))
{
process_message();
}
if( Bg == 0 )
{
/* command input */
if( FD_ISSET(STDIN_FILENO, &fdset) )
{
if( fgets( cmd, MAX_MODULE_INPUT_TEXT_LEN - 1, stdin ) == 0 )
{
if( Bg == 0 )
{
/* other than SIGTTIN */
break;
}
continue;
}
sendit( cmd );
}
}
}
}
else
{
for( ;i < argc; i++ )
{
strncpy( cmd, argv[i], MAX_MODULE_INPUT_TEXT_LEN - 1 );
sendit( cmd );
if (Opt_info >= 0)
receive();
}
}
close_fifos();
return Rc;
}
/*
*
* Procedure:
* main - start of module
*
*/
int
main(int argc, char **argv)
{
/* The struct holding the module info */
static ModuleArgs* module;
char *enter_fn="Silent Raise"; /* default */
char *leave_fn=NULL;
char *buf;
int len;
unsigned long m_mask;
unsigned long mx_mask;
unsigned long last_win = 0; /* last window handled */
unsigned long focus_win = 0; /* current focus */
unsigned long raised_win = 0;
fd_set_size_t fd_width;
int fd[2];
int timeout;
int sec = 0;
int usec = 0;
int n;
struct timeval value;
struct timeval *delay;
fd_set in_fdset;
Bool do_pass_id = False;
Bool use_enter_mode = False;
Bool use_leave_mode = False;
#ifdef DEBUG
int count = 0;
#endif
#ifdef DEBUGTOFILE
freopen(".FvwmAutoDebug","w",stderr);
#endif
module = ParseModuleArgs(argc,argv,0); /* no alias in this module */
if (module==NULL)
{
fprintf(stderr,"FvwmAuto Version "VERSION" should only be executed by fvwm!\n");
exit(1);
}
if (module->user_argc < 1 || module->user_argc > 5)
{
fprintf(stderr,"FvwmAuto can use one to five arguments.\n");
exit(1);
}
/* Dead pipes mean fvwm died */
#ifdef HAVE_SIGACTION
{
struct sigaction sigact;
sigemptyset(&sigact.sa_mask);
sigaddset(&sigact.sa_mask, SIGPIPE);
sigaddset(&sigact.sa_mask, SIGINT);
sigaddset(&sigact.sa_mask, SIGHUP);
sigaddset(&sigact.sa_mask, SIGQUIT);
sigaddset(&sigact.sa_mask, SIGTERM);
#ifdef SA_RESTART
sigact.sa_flags = SA_RESTART;
# else
sigact.sa_flags = 0;
#endif
sigact.sa_handler = TerminateHandler;
sigaction(SIGPIPE, &sigact, NULL);
sigaction(SIGINT, &sigact, NULL);
sigaction(SIGHUP, &sigact, NULL);
sigaction(SIGQUIT, &sigact, NULL);
sigaction(SIGTERM, &sigact, NULL);
}
#else
/* We don't have sigaction(), so fall back to less robust methods. */
#ifdef USE_BSD_SIGNALS
fvwmSetSignalMask( sigmask(SIGPIPE) |
sigmask(SIGINT) |
sigmask(SIGHUP) |
sigmask(SIGQUIT) |
sigmask(SIGTERM) );
#endif
signal(SIGPIPE, TerminateHandler);
signal(SIGINT, TerminateHandler);
signal(SIGHUP, TerminateHandler);
signal(SIGQUIT, TerminateHandler);
signal(SIGTERM, TerminateHandler);
#ifdef HAVE_SIGINTERRUPT
siginterrupt(SIGPIPE, 0);
siginterrupt(SIGINT, 0);
siginterrupt(SIGHUP, 0);
siginterrupt(SIGQUIT, 0);
siginterrupt(SIGTERM, 0);
#endif
#endif
fd[0] = module->to_fvwm;
fd[1] = module->from_fvwm;
if ((timeout = atoi(module->user_argv[0]) ))
{
sec = timeout / 1000;
usec = (timeout % 1000) * 1000;
}
else
{
sec = 0;
usec = 1000;
}
delay = &value;
n = 1;
if (n < module->user_argc && module->user_argv[n])
{
char *token;
/* -passid option */
if (n < module->user_argc && *module->user_argv[n] && StrEquals(module->user_argv[n], "-passid"))
{
do_pass_id = True;
n++;
}
if (n < module->user_argc && *module->user_argv[n] && StrEquals(module->user_argv[n], "-menterleave"))
{
/* enterleave mode */
use_leave_mode = True;
use_enter_mode = True;
n++;
}
else if (n < module->user_argc && *module->user_argv[n] && StrEquals(module->user_argv[n], "-menter"))
{
/* enter mode */
use_leave_mode = False;
use_enter_mode = True;
n++;
}
else if (n < module->user_argc && *module->user_argv[n] && StrEquals(module->user_argv[n], "-mfocus"))
{
/* focus mode */
use_leave_mode = False;
use_enter_mode = False;
n++;
}
/*** enter command ***/
if (n < module->user_argc && *module->user_argv[n] && StrEquals(module->user_argv[n], "Nop"))
{
/* nop */
enter_fn = NULL;
n++;
}
else if (n < module->user_argc)
{
/* override default */
enter_fn = module->user_argv[n];
n++;
}
/* This is a hack to prevent user interaction with old configs.
*/
if (enter_fn)
{
token = PeekToken(enter_fn, NULL);
if (!StrEquals(token, "Silent"))
{
enter_fn = safestrdup(
CatString2("Silent ", enter_fn));
}
}
/*** leave command ***/
if (n < module->user_argc && module->user_argv[n] && *module->user_argv[n] &&
StrEquals(module->user_argv[n], "Nop"))
{
/* nop */
leave_fn = NULL;
n++;
}
else if (n < module->user_argc)
{
/* leave function specified */
leave_fn=module->user_argv[n];
n++;
}
if (leave_fn)
{
token = PeekToken(leave_fn, NULL);
if (!StrEquals(token, "Silent"))
{
leave_fn = safestrdup(
CatString2("Silent ", leave_fn));
}
}
}
/* Exit if nothing to do. */
if (!enter_fn && !leave_fn)
{
return -1;
}
if (use_enter_mode)
{
m_mask = 0;
mx_mask = MX_ENTER_WINDOW | MX_LEAVE_WINDOW | M_EXTENDED_MSG;
}
else
{
mx_mask = M_EXTENDED_MSG;
m_mask = M_FOCUS_CHANGE;
}
/* Disable special raise/lower support on general actions. *
* This works as expected in most of cases. */
if (matchWildcards("*Raise*", CatString2(enter_fn, leave_fn)) ||
matchWildcards("*Lower*", CatString2(enter_fn, leave_fn)))
{
m_mask |= M_RAISE_WINDOW | M_LOWER_WINDOW;
}
/* migo (04/May/2000): It is simply incorrect to listen to raise/lower
* packets and change the state if the action itself has no raise/lower.
* Detecting whether to listen or not by the action name is good enough.
m_mask = M_FOCUS_CHANGE | M_RAISE_WINDOW | M_LOWER_WINDOW;
*/
SetMessageMask(fd, m_mask);
SetMessageMask(fd, mx_mask);
/* tell fvwm we're running */
SendFinishedStartupNotification(fd);
/* tell fvwm that we want to be lock on send */
SetSyncMask(fd, m_mask);
SetSyncMask(fd, mx_mask);
fd_width = fd[1] + 1;
FD_ZERO(&in_fdset);
/* create the command buffer */
len = 0;
if (enter_fn != 0)
{
len = strlen(enter_fn);
}
if (leave_fn != NULL)
{
len = max(len, strlen(leave_fn));
}
if (do_pass_id)
{
len += 32;
}
buf = safemalloc(len);
while (!isTerminated)
{
char raise_window_now;
static char have_new_window = 0;
FD_SET(fd[1], &in_fdset);
myfprintf(
(stderr, "\nstart %d (hnw = %d, usec = %d)\n", count++,
have_new_window, usec));
/* fill in struct - modified by select() */
delay->tv_sec = sec;
delay->tv_usec = usec;
#ifdef DEBUG
{
char tmp[32];
sprintf(tmp, "%d usecs", (delay) ?
(int)delay->tv_usec : -1);
myfprintf((stderr, "select: delay = %s\n",
(have_new_window) ? tmp : "infinite" ));
}
#endif
if (fvwmSelect(fd_width, &in_fdset, NULL, NULL,
(have_new_window) ? delay : NULL) == -1)
{
myfprintf(
(stderr, "select: error! (%s)\n",
strerror(errno)));
break;
}
raise_window_now = 0;
if (FD_ISSET(fd[1], &in_fdset))
{
FvwmPacket *packet = ReadFvwmPacket(fd[1]);
if (packet == NULL)
{
myfprintf(
(stderr,
"Leaving because of null packet\n"));
break;
}
myfprintf(
(stderr,
"pw = 0x%x, fw=0x%x, rw = 0x%x, lw=0x%x\n",
(int)packet->body[0], (int)focus_win,
(int)raised_win, (int)last_win));
switch (packet->type)
{
case MX_ENTER_WINDOW:
focus_win = packet->body[0];
if (focus_win != raised_win)
{
myfprintf((stderr,
"entered new window\n"));
have_new_window = 1;
raise_window_now = 0;
}
else if (focus_win == last_win)
{
have_new_window = 0;
}
else
{
myfprintf((stderr,
"entered other window\n"));
}
break;
case MX_LEAVE_WINDOW:
if (use_leave_mode)
{
if (focus_win == raised_win)
{
focus_win = 0;
}
myfprintf((stderr,
"left raised window\n"));
have_new_window = 1;
raise_window_now = 0;
}
break;
case M_FOCUS_CHANGE:
/* it's a focus package */
focus_win = packet->body[0];
if (focus_win != raised_win)
{
myfprintf((stderr,
"focus on new window\n"));
have_new_window = 1;
raise_window_now = 0;
}
else
{
myfprintf((stderr,
"focus on old window\n"));
}
break;
case M_RAISE_WINDOW:
myfprintf(
(stderr, "raise packet 0x%x\n",
(int)packet->body[0]));
raised_win = packet->body[0];
if (have_new_window && focus_win == raised_win)
{
myfprintf(
(stderr, "its the old window:"
" don't raise\n"));
have_new_window = 0;
}
break;
case M_LOWER_WINDOW:
myfprintf(
(stderr, "lower packet 0x%x\n",
(int)packet->body[0]));
if (have_new_window &&
focus_win == packet->body[0])
{
myfprintf(
(stderr,
"window was explicitly"
" lowered, don't raise it"
" again\n"));
have_new_window = 0;
}
break;
} /* switch */
SendUnlockNotification(fd);
}
else
{
if (have_new_window)
{
myfprintf((stderr, "must raise now\n"));
raise_window_now = 1;
}
}
if (raise_window_now)
{
myfprintf((stderr, "raising 0x%x\n", (int)focus_win));
if (leave_fn &&
((last_win && !use_leave_mode) ||
(raised_win && use_enter_mode)))
{
/* if focus_win isn't the root */
if (do_pass_id)
{
sprintf(buf, "%s 0x%x\n", leave_fn,
(int)last_win);
}
else
{
sprintf(buf, "%s\n", leave_fn);
}
SendInfo(fd, buf, last_win);
if (use_enter_mode)
{
raised_win = 0;
}
}
if (focus_win && enter_fn)
{
/* if focus_win isn't the root */
if (do_pass_id)
{
sprintf(buf, "%s 0x%x\n", enter_fn,
(int)focus_win);
}
else
{
sprintf(buf, "%s\n", enter_fn);
}
SendInfo(fd, buf, focus_win);
raised_win = focus_win;
}
else if (focus_win && enter_fn == NULL)
{
raised_win = focus_win;
}
/* force fvwm to synchronise on slow X connections to
* avoid a race condition. Still possible, but much
* less likely. */
SendInfo(fd, "XSync", focus_win);
/* switch to wait mode again */
last_win = focus_win;
have_new_window = 0;
}
} /* while */
return 0;
}
