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