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/* $Id$ */
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the Gnome Top Library.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
The Gnome Top Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome Top Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <glibtop/command.h>
#include <glibtop/version.h>
#include <glibtop/xmalloc.h>
#include <glibtop/union.h>
#include <glibtop/open.h>
#include <fcntl.h>
#if defined(HAVE_GETDTABLESIZE)
#define GET_MAX_FDS() getdtablesize()
#else
/* Fallthrough case - please add other #elif cases above
for different OS's as necessary */
#define GET_MAX_FDS() 256
#endif
int
main(int argc, char *argv[])
{
pid_t pid;
int fd, max_fd, nread;
size_t size, dsize;
char parameter [BUFSIZ];
glibtop_union data;
glibtop_command cmnd;
glibtop_sysdeps sysdeps;
glibtop server;
void *ptr;
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, GTOPLOCALEDIR);
textdomain (PACKAGE);
glibtop_version ();
glibtop_open__l (&server, argv [0], 0, GLIBTOP_OPEN_NO_OVERRIDE);
/* close all file descriptors except ones used by the pipes (0 and 1). */
max_fd = GET_MAX_FDS();
for(fd = 3 /* The first fd after the pipes */; fd < max_fd; fd++)
close(fd);
while(1) {
/* block on read from client */
/* fprintf (stderr, "waiting for input ...\n"); */
nread = read (0, &size, sizeof (size_t));
/* will return 0 if parent exits. */
if (nread == 0)
_exit(0);
if (nread != sizeof (size_t))
_exit(1);
if (size != sizeof (glibtop_command))
_exit(2);
nread = read (0, &cmnd, size);
/* will return 0 if parent exits. */
if (nread == 0)
_exit(0);
if (nread < 0)
_exit(1);
nread = read (0, &dsize, sizeof (size_t));
/* will return 0 if parent exits. */
if (nread == 0)
_exit(0);
if (nread < 0)
_exit(1);
if (dsize >= BUFSIZ)
_exit(3);
memset (parameter, 0, sizeof (parameter));
if (dsize) {
nread = read (0, parameter, dsize);
/* will return 0 if parent exits. */
if (nread == 0)
_exit(0);
if (nread < 0)
_exit(1);
}
switch (cmnd.command) {
case GLIBTOP_CMND_SYSDEPS:
sysdeps.features = GLIBTOP_SYSDEPS_ALL;
glibtop_output (sizeof (glibtop_sysdeps), &sysdeps);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_CPU:
glibtop_get_cpu__l (&server, &data.cpu);
glibtop_output (sizeof (glibtop_cpu), &data.cpu);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_MEM:
glibtop_get_mem__l (&server, &data.mem);
glibtop_output (sizeof (glibtop_mem), &data.mem);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_SWAP:
glibtop_get_swap__l (&server, &data.swap);
glibtop_output (sizeof (glibtop_swap), &data.swap);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_UPTIME:
glibtop_get_uptime__l (&server, &data.uptime);
glibtop_output (sizeof (glibtop_uptime), &data.uptime);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_LOADAVG:
glibtop_get_loadavg__l (&server, &data.loadavg);
glibtop_output (sizeof (glibtop_loadavg), &data.loadavg);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_SHM_LIMITS:
glibtop_get_shm_limits__l (&server, &data.shm_limits);
glibtop_output (sizeof (glibtop_shm_limits),
&data.shm_limits);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_MSG_LIMITS:
glibtop_get_msg_limits__l (&server, &data.msg_limits);
glibtop_output (sizeof (glibtop_msg_limits),
&data.msg_limits);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_SEM_LIMITS:
glibtop_get_sem_limits__l (&server, &data.sem_limits);
glibtop_output (sizeof (glibtop_sem_limits),
&data.sem_limits);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_PROCLIST:
ptr = glibtop_get_proclist__l (&server, &data.proclist);
glibtop_output (sizeof (glibtop_proclist),
&data.proclist);
glibtop_output (data.proclist.total, ptr);
glibtop_free__r (&server, ptr);
break;
case GLIBTOP_CMND_PROC_STATE:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_state__l
(&server, &data.proc_state, pid);
glibtop_output (sizeof (glibtop_proc_state),
&data.proc_state);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_PROC_UID:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_uid__l
(&server, &data.proc_uid, pid);
glibtop_output (sizeof (glibtop_proc_uid),
&data.proc_uid);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_PROC_MEM:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_mem__l
(&server, &data.proc_mem, pid);
glibtop_output (sizeof (glibtop_proc_mem),
&data.proc_mem);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_PROC_TIME:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_time__l
(&server, &data.proc_time, pid);
glibtop_output (sizeof (glibtop_proc_time),
&data.proc_time);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_PROC_SIGNAL:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_signal__l
(&server, &data.proc_signal, pid);
glibtop_output (sizeof (glibtop_proc_signal),
&data.proc_signal);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_PROC_KERNEL:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_kernel__l
(&server, &data.proc_kernel, pid);
glibtop_output (sizeof (glibtop_proc_kernel),
&data.proc_kernel);
glibtop_output (0, NULL);
break;
case GLIBTOP_CMND_PROC_SEGMENT:
memcpy (&pid, parameter, sizeof (pid_t));
glibtop_get_proc_segment__l
(&server, &data.proc_segment, pid);
glibtop_output (sizeof (glibtop_proc_segment),
&data.proc_segment);
glibtop_output (0, NULL);
break;
}
}
_exit(0);
}
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