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/******************************************************************************
**
** $Id: dld_gui.cc,v 1.4 2000/03/15 20:02:15 harald Exp $
**
** 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.
**
** (C) (C) 1999,2000 Harald Hoyer <DLDialog@parzelle.de> - All rights reserved -
**
******************************************************************************/
#include <sys/wait.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <errno.h>
/*
#include "dld_parser.h"
#include "dldialog.h"
*/
#include "dld_lib.h"
#include "dld_parser.h"
#include "dldialog.h"
#include "dld_gui.h"
#include "dld_gauge.h"
extern char **environ;
void DLD_Gui::
set_env (const string& _name, const string& _value)
{
envmap[_name] = convstr(_value);
}
string DLD_Gui::
get_env (const string& _name)
{
return envmap[_name];
}
void DLD_Gui::
clear_env()
{
envmap.erase(envmap.begin(), envmap.end());
}
bool DLD_Gui::
parse(long wait)
{
// static int infd = 0;
if(!DLD_error) {
int fd_max=-1;
fd_set fdset;
FD_ZERO(&fdset);
// Lets wait for incoming sockets
FD_SET(sock_in, &fdset);
fd_max = max(fd_max, sock_in);
// Scan all gauge execs
for(map<int, DLD_Gauge_Ptr>::iterator i = gaugemap.begin();
i != gaugemap.end(); ++i) {
FD_SET(i->first, &fdset);
fd_max = max(fd_max, i->first);
}
struct timeval timeout = {wait/1000000, wait%1000000};
if(fd_max != -1 && select(fd_max+1, &fdset, 0, 0, (wait < 0) ? NULL : &timeout) > 0) {
// if(fd_max != -1 && select(fd_max+1, &fdset, 0, 0, NULL) > 0) {
// Look if there are gauges to update...
for(map<int, DLD_Gauge_Ptr>::iterator i = gaugemap.begin();
i != gaugemap.end(); ++i) {
if(FD_ISSET(i->first, &fdset)) {
if (i->second)
i->second->parse();
}
}
if(FD_ISSET(sock_in, &fdset) && DLD_run >= 0) {
socklen_t len = sock_len;
int fd_in = accept(sock_in, (struct sockaddr *)&sock_addr, &len);
// fcntl(fd_in, F_SETFL, O_NONBLOCK);
if(DLDout.is_open())
DLDout.close();
DLDout.attach (dup(fd_in));
if(!yyin)
yyin = fdopen(fd_in, "rwb");
yyparse ();
DLDout << flush;
close(fd_in);
if(DLD_run >= 0 && DLDout.is_open())
DLDout.close();
}
}
}
int status;
pid_t pid;
do {
pid = waitpid(-1, &status, WNOHANG);
if (pid > 0) {
DLDdbg << "child " << pid << " exited." << endl << flush;
map<int, DLD_Gauge_Ptr>::iterator i;
for(i = gaugemap.begin(); i != gaugemap.end(); ++i) {
if(pid == i->second->execpid)
break;
}
if(i == gaugemap.end()) {
/*
DLDdbg << "--DLD_run = " << DLD_run << endl << flush;
DLD_run--;
*/
}
else {
if (i->second)
i->second->parse();
}
}
else if(errno == ECHILD)
{
map<int, DLD_Gauge_Ptr>::iterator i;
for(i = gaugemap.begin(); i != gaugemap.end(); ++i) {
if (i->second)
i->second->parse();
}
}
} while (pid > 0);
if((DLD_run >= 0) && !DLD_error)
return true;
else
return false;
}
void DLD_Gui::
register_gauge(DLD_Gauge *_gauge, int _fd)
{
gaugemap[_fd] = _gauge;
}
void DLD_Gui::
deregister_gauge(DLD_Gauge *_gauge)
{
for(map<int, DLD_Gauge_Ptr>::iterator i = gaugemap.begin();
i != gaugemap.end(); ++i) {
if (i->second == _gauge) {
gaugemap.erase(i);
close(i->first);
break;
}
}
}
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