The code in this directory fetches all information directly from the

1998-06-13  Martin Baulig  <martin@home-of-linux.org>

	The code in this directory fetches all information
	directly from the kernel. It uses the new table ()
	system call from the `kernel' directory.

25 files changed, 1525 insertions, 0 deletions

diff --git a/sysdeps/kernel/.cvsignore b/sysdeps/kernel/.cvsignore
new file mode 100644
index 00000000..b851d091
--- /dev/null
+++ b/sysdeps/kernel/.cvsignore
@@ -0,0 +1,28 @@
+.deps
+.libs
+Makefile
+Makefile.in
+close.lo
+cpu.lo
+init.lo
+ipc_limits.lo
+libgtop_sysdeps.la
+loadavg.lo
+mem.lo
+msg_limits.lo
+open.lo
+procdata.lo
+prockernel.lo
+proclist.lo
+procmem.lo
+procsegment.lo
+procsignal.lo
+procstate.lo
+proctime.lo
+procuid.lo
+sem_limits.lo
+shm_limits.lo
+swap.lo
+sysdeps.lo
+sysinfo.lo
+uptime.lo
diff --git a/sysdeps/kernel/ChangeLog b/sysdeps/kernel/ChangeLog
new file mode 100644
index 00000000..51a5a6e8
--- /dev/null
+++ b/sysdeps/kernel/ChangeLog
@@ -0,0 +1,5 @@
+1998-06-13  Martin Baulig  <martin@home-of-linux.org>
+
+	The code in this directory fetches all information
+	directly from the kernel. It uses the new table ()
+	system call from the `kernel' directory.
diff --git a/sysdeps/kernel/Makefile.am b/sysdeps/kernel/Makefile.am
new file mode 100644
index 00000000..5c5cb132
--- /dev/null
+++ b/sysdeps/kernel/Makefile.am
@@ -0,0 +1,17 @@
+LINK				= $(LIBTOOL) --mode=link $(CC) $(CFLAGS) $(LDFLAGS) -o $@
+
+INCLUDES			= -I$(top_builddir) -I$(top_srcdir) @machine_incs@ \
+				  -I$(top_srcdir)/include -I$(top_srcdir)/intl @GUILE_INCS@ \
+				  -DGTOPLOCALEDIR=\"$(datadir)/locale\" -D_GNU_SOURCE
+
+CFLAGS				= -Wall -W @CFLAGS@
+
+lib_LTLIBRARIES			= libgtop_sysdeps.la
+
+libgtop_sysdeps_la_SOURCES	= init.c open.c close.c cpu.c mem.c swap.c \
+				  uptime.c loadavg.c shm_limits.c msg_limits.c \
+				  sem_limits.c proclist.c procstate.c procuid.c \
+				  proctime.c procmem.c procsignal.c prockernel.c \
+				  procsegment.c
+
+include_HEADERS			= glibtop_server.h
diff --git a/sysdeps/kernel/close.c b/sysdeps/kernel/close.c
new file mode 100644
index 00000000..02f2e5b3
--- /dev/null
+++ b/sysdeps/kernel/close.c
@@ -0,0 +1,28 @@
+/* $Id$ */
+
+/* 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/close.h>
+
+/* Closes pipe to gtop server. */
+
+void
+glibtop_close_l (glibtop *server)
+{ }
diff --git a/sysdeps/kernel/cpu.c b/sysdeps/kernel/cpu.c
new file mode 100644
index 00000000..10f55d44
--- /dev/null
+++ b/sysdeps/kernel/cpu.c
@@ -0,0 +1,55 @@
+/* $Id$ */
+
+/* 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 <config.h>
+#include <glibtop/error.h>
+#include <glibtop/cpu.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_cpu =
+(1 << GLIBTOP_CPU_TOTAL) + (1 << GLIBTOP_CPU_USER) +
+(1 << GLIBTOP_CPU_NICE) + (1 << GLIBTOP_CPU_SYS) +
+(1 << GLIBTOP_CPU_IDLE) + (1 << GLIBTOP_CPU_FREQUENCY);
+
+/* Provides information about cpu usage. */
+
+void
+glibtop_get_cpu_s (glibtop *server, glibtop_cpu *buf)
+{
+	union table tbl;
+
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_cpu));
+
+	if (table (TABLE_CPU, &tbl, NULL))
+		glibtop_error_r (server, "table(TABLE_CPU): %s\n", strerror (errno));
+
+	buf->flags = _glibtop_sysdeps_cpu;
+
+	buf->total = tbl.cpu.total;
+	buf->user = tbl.cpu.user;
+	buf->nice = tbl.cpu.nice;
+	buf->sys = tbl.cpu.sys;
+	buf->idle = tbl.cpu.idle;
+	buf->frequency = tbl.cpu.frequency;
+}
diff --git a/sysdeps/kernel/glibtop_server.h b/sysdeps/kernel/glibtop_server.h
new file mode 100644
index 00000000..52b1b3c0
--- /dev/null
+++ b/sysdeps/kernel/glibtop_server.h
@@ -0,0 +1,46 @@
+/* $Id$ */
+
+/* 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.  */
+
+#ifndef __GLIBTOP_SERVER_H__
+#define __GLIBTOP_SERVER_H__
+
+__BEGIN_DECLS
+
+#define GLIBTOP_SUID_CPU		0
+#define GLIBTOP_SUID_MEM		0
+#define GLIBTOP_SUID_SWAP		0
+#define GLIBTOP_SUID_UPTIME		0
+#define GLIBTOP_SUID_LOADAVG		0
+#define GLIBTOP_SUID_SHM_LIMITS		0
+#define GLIBTOP_SUID_MSG_LIMITS		0
+#define GLIBTOP_SUID_SEM_LIMITS		0
+#define GLIBTOP_SUID_PROCLIST		0
+#define GLIBTOP_SUID_PROC_STATE		0
+#define GLIBTOP_SUID_PROC_UID		0
+#define GLIBTOP_SUID_PROC_MEM		0
+#define GLIBTOP_SUID_PROC_TIME		0
+#define GLIBTOP_SUID_PROC_SIGNAL	0
+#define GLIBTOP_SUID_PROC_KERNEL	0
+#define GLIBTOP_SUID_PROC_SEGMENT	0
+
+__END_DECLS
+
+#endif
diff --git a/sysdeps/kernel/init.c b/sysdeps/kernel/init.c
new file mode 100644
index 00000000..f491070f
--- /dev/null
+++ b/sysdeps/kernel/init.c
@@ -0,0 +1,44 @@
+/* $Id$ */
+
+/* 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.h>
+#include <glibtop/open.h>
+
+static glibtop	_glibtop_global_server;
+glibtop		*glibtop_global_server = NULL;
+
+glibtop *
+glibtop_init_r (glibtop **server, const unsigned long features,
+		 const unsigned flags)
+{
+	if (*server != NULL)
+		return *server;
+
+	fprintf (stderr, "DEBUG: %s (%d)\n", __FILE__, __LINE__);
+
+	if (glibtop_global_server == NULL) {
+		glibtop_global_server = &_glibtop_global_server;
+		glibtop_open_r (glibtop_global_server, "glibtop",
+				 features, flags);
+	}
+	
+	return *server = glibtop_global_server;
+}
diff --git a/sysdeps/kernel/kernel.h b/sysdeps/kernel/kernel.h
new file mode 100644
index 00000000..e7380d64
--- /dev/null
+++ b/sysdeps/kernel/kernel.h
@@ -0,0 +1,38 @@
+/* $Id$ */
+
+/* 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.  */
+
+#ifndef __GLIBTOP_KERNEL_KERNEL_H__
+#define __GLIBTOP_KERNEL_KERNEL_H__
+
+#include <linux/unistd.h>
+#include <linux/table.h>
+
+#include <sys/param.h>
+
+#include <syscall.h>
+
+__BEGIN_DECLS
+
+extern int table (int, union table *, const void *);
+
+__END_DECLS
+
+#endif
diff --git a/sysdeps/kernel/loadavg.c b/sysdeps/kernel/loadavg.c
new file mode 100644
index 00000000..e2dbe8ba
--- /dev/null
+++ b/sysdeps/kernel/loadavg.c
@@ -0,0 +1,57 @@
+/* $Id$ */
+
+/* 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 <config.h>
+#include <glibtop/error.h>
+#include <glibtop/loadavg.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_loadavg =
+(1 << GLIBTOP_LOADAVG_LOADAVG);
+
+/* Provides load load averange. */
+
+void
+glibtop_get_loadavg_s (glibtop *server, glibtop_loadavg *buf)
+{
+	union table tbl;
+	
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_loadavg));
+
+	if (table (TABLE_LOADAVG, &tbl, NULL))
+		glibtop_error_r (server, "table(TABLE_LOADAVG): %s\n", strerror (errno));
+	
+	buf->flags = _glibtop_sysdeps_loadavg;
+
+#if 0
+	fprintf (stderr, "Table (%u) = (%lu, %lu, %lu) - %u, %u, %u\n",
+		 TABLE_LOADAVG, tbl.loadavg.loadavg [0], tbl.loadavg.loadavg [1],
+		 tbl.loadavg.loadavg [2], tbl.loadavg.nr_running,
+		 tbl.loadavg.nr_tasks, tbl.loadavg.last_pid);
+#endif
+
+	buf->loadavg [0] = tbl.loadavg.loadavg [0];
+	buf->loadavg [1] = tbl.loadavg.loadavg [1];
+	buf->loadavg [2] = tbl.loadavg.loadavg [2];
+}
diff --git a/sysdeps/kernel/mem.c b/sysdeps/kernel/mem.c
new file mode 100644
index 00000000..2c4104e5
--- /dev/null
+++ b/sysdeps/kernel/mem.c
@@ -0,0 +1,58 @@
+/* $Id$ */
+
+/* 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 <config.h>
+#include <glibtop/error.h>
+#include <glibtop/mem.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_mem =
+(1 << GLIBTOP_MEM_TOTAL) + (1 << GLIBTOP_MEM_USED) +
+(1 << GLIBTOP_MEM_FREE) + (1 << GLIBTOP_MEM_SHARED) +
+(1 << GLIBTOP_MEM_BUFFER) + (1 << GLIBTOP_MEM_CACHED) +
+(1 << GLIBTOP_MEM_USER);
+
+/* Provides information about memory usage. */
+
+void
+glibtop_get_mem_s (glibtop *server, glibtop_mem *buf)
+{
+	union table tbl;
+	
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_mem));
+
+	if (table (TABLE_MEM, &tbl, NULL))
+		glibtop_error_r (server, "table(TABLE_MEM): %s\n", strerror (errno));
+
+	buf->flags = _glibtop_sysdeps_mem;
+
+	buf->total  = tbl.mem.total;
+	buf->used   = tbl.mem.used;
+	buf->free   = tbl.mem.free;
+	buf->shared = tbl.mem.shared;
+	buf->buffer = tbl.mem.buffer;
+	buf->cached = tbl.mem.cached;
+
+	buf->user = buf->total - buf->free - buf->shared - buf->buffer;
+}
diff --git a/sysdeps/kernel/msg_limits.c b/sysdeps/kernel/msg_limits.c
new file mode 100644
index 00000000..8b0e6fdc
--- /dev/null
+++ b/sysdeps/kernel/msg_limits.c
@@ -0,0 +1,55 @@
+/* $Id$ */
+
+/* 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/msg_limits.h>
+
+#include <sys/ipc.h>
+#include <sys/msg.h>
+
+static const unsigned long _glibtop_sysdeps_msg_limits =
+(1 << GLIBTOP_IPC_MSGPOOL) + (1 << GLIBTOP_IPC_MSGMAP) +
+(1 << GLIBTOP_IPC_MSGMAX) + (1 << GLIBTOP_IPC_MSGMNB) +
+(1 << GLIBTOP_IPC_MSGMNI) + (1 << GLIBTOP_IPC_MSGSSZ) +
+(1 << GLIBTOP_IPC_MSGTQL);
+
+/* Provides information about sysv ipc limits. */
+
+void
+glibtop_get_msg_limits_s (glibtop *server, glibtop_msg_limits *buf)
+{
+	struct msginfo	msginfo;
+  
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_msg_limits));
+  
+	buf->flags = _glibtop_sysdeps_msg_limits;
+  
+	msgctl (0, IPC_INFO, (struct msqid_ds *) &msginfo);
+  
+	buf->msgpool = msginfo.msgpool;
+	buf->msgmap = msginfo.msgmap;
+	buf->msgmax = msginfo.msgmax;
+	buf->msgmnb = msginfo.msgmnb;
+	buf->msgmni = msginfo.msgmni;
+	buf->msgssz = msginfo.msgssz;
+	buf->msgtql = msginfo.msgtql;
+}
diff --git a/sysdeps/kernel/open.c b/sysdeps/kernel/open.c
new file mode 100644
index 00000000..69f00051
--- /dev/null
+++ b/sysdeps/kernel/open.c
@@ -0,0 +1,62 @@
+/* $Id$ */
+
+/* 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/open.h>
+
+/* =====================================================
+ * Linux kernel version information for procps utilities
+ * Copyright (c) 1996 Charles Blake <cblake@bbn.com>
+ */
+#include <sys/utsname.h>
+
+#define LINUX_VERSION(x,y,z)   (0x10000*(x) + 0x100*(y) + z)
+
+static int linux_version_code = 0;
+
+static void set_linux_version(void) {
+    static struct utsname uts;
+    int x = 0, y = 0, z = 0;	/* cleared in case sscanf() < 3 */
+    
+    if (linux_version_code) return;
+    if (uname(&uts) == -1)	/* failure most likely implies impending death */
+	exit(1);
+    if (sscanf(uts.release, "%d.%d.%d", &x, &y, &z) < 3)
+	fprintf(stderr,		/* *very* unlikely to happen by accident */
+		"Non-standard uts for running kernel:\n"
+		"release %s=%d.%d.%d gives version code %d\n",
+		uts.release, x, y, z, LINUX_VERSION(x,y,z));
+    linux_version_code = LINUX_VERSION(x, y, z);
+}
+
+/* ======================================================= */
+
+/* Opens pipe to gtop server. Returns 0 on success and -1 on error. */
+
+void
+glibtop_open_r (glibtop *server, const char *program_name,
+		 const unsigned long features, const unsigned flags)
+{
+	memset (server, 0, sizeof (glibtop));
+	server->name = program_name;
+
+	set_linux_version ();
+	server->os_version_code = (unsigned long) linux_version_code;
+}
diff --git a/sysdeps/kernel/procdata.c b/sysdeps/kernel/procdata.c
new file mode 100644
index 00000000..9226b7e0
--- /dev/null
+++ b/sysdeps/kernel/procdata.c
@@ -0,0 +1,178 @@
+/* $Id$ */
+
+/* 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 <config.h>
+#include <glibtop/procdata.h>
+
+#include <sys/stat.h>
+
+#define LINUX_VERSION(x,y,z)	(0x10000*(x) + 0x100*(y) + z)
+
+#define BIT_SHIFT(x)		(1 << (x % 32))
+
+static const unsigned long _glibtop_sysdeps_procdata_0 =
+BIT_SHIFT(GLIBTOP_PROCDATA_CMD) +
+BIT_SHIFT(GLIBTOP_PROCDATA_STATE) +
+BIT_SHIFT(GLIBTOP_PROCDATA_UID) +
+BIT_SHIFT(GLIBTOP_PROCDATA_PID) +
+BIT_SHIFT(GLIBTOP_PROCDATA_PPID) +
+BIT_SHIFT(GLIBTOP_PROCDATA_PGRP) +
+BIT_SHIFT(GLIBTOP_PROCDATA_SESSION) +
+BIT_SHIFT(GLIBTOP_PROCDATA_TTY) +
+BIT_SHIFT(GLIBTOP_PROCDATA_TPGID) +
+BIT_SHIFT(GLIBTOP_PROCDATA_PRIORITY) +
+BIT_SHIFT(GLIBTOP_PROCDATA_NICE) +
+BIT_SHIFT(GLIBTOP_PROCDATA_SIGNAL) +
+BIT_SHIFT(GLIBTOP_PROCDATA_BLOCKED) +
+BIT_SHIFT(GLIBTOP_PROCDATA_SIGIGNORE) +
+BIT_SHIFT(GLIBTOP_PROCDATA_SIGCATCH) +
+BIT_SHIFT(GLIBTOP_PROCDATA_START_TIME) +
+BIT_SHIFT(GLIBTOP_PROCDATA_UTIME) +
+BIT_SHIFT(GLIBTOP_PROCDATA_STIME) +
+BIT_SHIFT(GLIBTOP_PROCDATA_CUTIME) +
+BIT_SHIFT(GLIBTOP_PROCDATA_CSTIME) +
+BIT_SHIFT(GLIBTOP_PROCDATA_SIZE) +
+BIT_SHIFT(GLIBTOP_PROCDATA_RESIDENT) +
+BIT_SHIFT(GLIBTOP_PROCDATA_SHARE) +
+BIT_SHIFT(GLIBTOP_PROCDATA_TRS) +
+BIT_SHIFT(GLIBTOP_PROCDATA_LRS) +
+BIT_SHIFT(GLIBTOP_PROCDATA_DRS) +
+BIT_SHIFT(GLIBTOP_PROCDATA_DT) +
+BIT_SHIFT(GLIBTOP_PROCDATA_VSIZE) +
+BIT_SHIFT(GLIBTOP_PROCDATA_RSS) +
+BIT_SHIFT(GLIBTOP_PROCDATA_RSS_RLIM) +
+BIT_SHIFT(GLIBTOP_PROCDATA_TIMEOUT) +
+BIT_SHIFT(GLIBTOP_PROCDATA_IT_REAL_VALUE);
+
+static const unsigned long _glibtop_sysdeps_procdata_1 =
+BIT_SHIFT(GLIBTOP_PROCDATA_K_FLAGS) +
+BIT_SHIFT(GLIBTOP_PROCDATA_MIN_FLT) +
+BIT_SHIFT(GLIBTOP_PROCDATA_MAJ_FLT) +
+BIT_SHIFT(GLIBTOP_PROCDATA_CMIN_FLT) +
+BIT_SHIFT(GLIBTOP_PROCDATA_CMAJ_FLT) +
+BIT_SHIFT(GLIBTOP_PROCDATA_START_CODE) +
+BIT_SHIFT(GLIBTOP_PROCDATA_END_CODE) +
+BIT_SHIFT(GLIBTOP_PROCDATA_START_STACK) +
+BIT_SHIFT(GLIBTOP_PROCDATA_KSTK_ESP) +
+BIT_SHIFT(GLIBTOP_PROCDATA_KSTK_EIP) +
+BIT_SHIFT(GLIBTOP_PROCDATA_WCHAN);
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_procdata_s (glibtop *server, glibtop_procdata *buf, pid_t pid)
+{
+	char input [BUFSIZ], *tmp;
+	struct stat statb;
+	int nread;
+	FILE *f;
+	
+	glibtop_init_r (&server, 0, 0);
+	
+	memset (buf, 0, sizeof (glibtop_procdata));
+
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags [0] = _glibtop_sysdeps_procdata_0;
+		buf->flags [1] = _glibtop_sysdeps_procdata_1;
+		return;
+	}
+
+	
+	sprintf (input, "/proc/%d/stat", pid);
+
+	if (stat (input, &statb)) return;
+
+	buf->uid = statb.st_uid;
+	
+	f = fopen (input, "r");
+	if (!f) return;
+	
+	nread = fread (input, 1, BUFSIZ, f);
+	
+	if (nread < 0) {
+		fclose (f);
+		return;
+	}
+	
+	input [nread] = 0;
+	
+	/* This is from guile-utils/gtop/proc/readproc.c */
+	
+	/* split into "PID (cmd" and "<rest>" */
+	tmp = strrchr (input, ')');
+	*tmp = '\0';		/* replace trailing ')' with NUL */
+	/* parse these two strings separately, skipping the leading "(". */
+	memset (buf->cmd, 0, sizeof (buf->cmd));
+	sscanf (input, "%d (%39c", &buf->pid, buf->cmd);
+	sscanf(tmp + 2,		/* skip space after ')' too */
+	       "%c %d %d %d %d %d %lu %lu %lu %lu %lu "
+	       "%ld %ld %ld %ld %d %d %lu %lu %ld %lu "
+	       "%lu %lu %lu %lu %lu %lu %lu %d %d %d %d %lu",
+	       &buf->state, &buf->ppid, &buf->pgrp, &buf->session,
+	       &buf->tty, &buf->tpgid, &buf->k_flags, &buf->min_flt,
+	       &buf->cmin_flt, &buf->maj_flt, &buf->cmaj_flt,
+	       &buf->utime, &buf->stime, &buf->cutime, &buf->cstime,
+	       &buf->priority, &buf->nice, &buf->timeout,
+	       &buf->it_real_value, &buf->start_time, &buf->vsize,
+	       &buf->rss, &buf->rss_rlim, &buf->start_code,
+	       &buf->end_code, &buf->start_stack, &buf->kstk_esp,
+	       &buf->kstk_eip, &buf->signal, &buf->blocked,
+	       &buf->sigignore, &buf->sigcatch, &buf->wchan);
+
+	if (buf->tty == 0)
+		/* the old notty val, update elsewhere bef. moving to 0 */
+		buf->tty = -1;
+
+	if (server->os_version_code < LINUX_VERSION(1,3,39)) {
+		/* map old meanings to new */
+		buf->priority = 2*15 - buf->priority;
+		buf->nice = 15 - buf->nice;
+	}
+	if (server->os_version_code < LINUX_VERSION(1,1,30) && buf->tty != -1)
+		/* when tty wasn't full devno */
+		buf->tty = 4*0x100 + buf->tty;
+	
+	fclose (f);
+
+	sprintf (input, "/proc/%d/statm", pid);
+
+	f = fopen (input, "r");
+	if (!f) return;
+
+	nread = fread (input, 1, BUFSIZ, f);
+
+	if (nread < 0) {
+		fclose (f);
+		return;
+	}
+
+	input [nread] = 0;
+
+	sscanf (input, "%ld %ld %ld %ld %ld %ld %ld",
+		&buf->size, &buf->resident, &buf->share,
+		&buf->trs, &buf->lrs, &buf->drs, &buf->dt);
+
+	fclose (f);
+
+	buf->flags [0] = _glibtop_sysdeps_procdata_0;
+	buf->flags [1] = _glibtop_sysdeps_procdata_1;
+}
diff --git a/sysdeps/kernel/prockernel.c b/sysdeps/kernel/prockernel.c
new file mode 100644
index 00000000..f405f5a9
--- /dev/null
+++ b/sysdeps/kernel/prockernel.c
@@ -0,0 +1,63 @@
+/* $Id$ */
+
+/* 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.h>
+#include <glibtop/error.h>
+#include <glibtop/prockernel.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_proc_kernel =
+(1 << GLIBTOP_PROC_KERNEL_K_FLAGS) + (1 << GLIBTOP_PROC_KERNEL_MIN_FLT) +
+(1 << GLIBTOP_PROC_KERNEL_MAJ_FLT) + (1 << GLIBTOP_PROC_KERNEL_CMIN_FLT) +
+(1 << GLIBTOP_PROC_KERNEL_CMAJ_FLT) + (1 << GLIBTOP_PROC_KERNEL_KSTK_ESP) +
+(1 << GLIBTOP_PROC_KERNEL_KSTK_EIP) + (1 << GLIBTOP_PROC_KERNEL_WCHAN);
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_proc_kernel_s (glibtop *server, glibtop_proc_kernel *buf, pid_t pid)
+{
+	union table tbl;
+	
+	glibtop_init_r (&server, 0, 0);
+	
+	memset (buf, 0, sizeof (glibtop_proc_kernel));
+	
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags = _glibtop_sysdeps_proc_kernel;
+		return;
+	}
+
+	if (table (TABLE_PROC_KERNEL, &tbl, &pid))
+		glibtop_error_r (server, "table(TABLE_PROC_KERNEL): %s\n", strerror (errno));
+	
+	buf->flags = _glibtop_sysdeps_proc_kernel;
+	
+	buf->min_flt = tbl.proc_kernel.min_flt;
+	buf->cmin_flt = tbl.proc_kernel.cmin_flt;
+	buf->maj_flt = tbl.proc_kernel.maj_flt;
+	buf->cmaj_flt = tbl.proc_kernel.cmaj_flt;
+	buf->kstk_esp = tbl.proc_kernel.kesp;
+	buf->kstk_eip = tbl.proc_kernel.keip;
+	buf->wchan = tbl.proc_kernel.wchan;
+}
diff --git a/sysdeps/kernel/proclist.c b/sysdeps/kernel/proclist.c
new file mode 100644
index 00000000..4581cadc
--- /dev/null
+++ b/sysdeps/kernel/proclist.c
@@ -0,0 +1,155 @@
+/* $Id$ */
+
+/* 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 <config.h>
+#include <glibtop/xmalloc.h>
+#include <glibtop/proclist.h>
+
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <ctype.h>
+
+static const unsigned long _glibtop_sysdeps_proclist =
+(1 << GLIBTOP_PROCLIST_TOTAL) + (1 << GLIBTOP_PROCLIST_NUMBER) +
+(1 << GLIBTOP_PROCLIST_SIZE);
+
+#define BLOCK_COUNT	256
+#define BLOCK_SIZE	(BLOCK_COUNT * sizeof (unsigned))
+
+/* Fetch list of currently running processes.
+ *
+ * The interface of this function is a little bit different from the others:
+ * buf->flags is only set if the call succeeded, in this case pids_chain,
+ * a list of the pids of all currently running processes is returned,
+ * buf->number is the number of elements of this list and buf->size is
+ * the size of one single element (sizeof (unsigned)). The total size is
+ * stored in buf->total.
+ *
+ * The calling function has to free the memory to which a pointer is returned.
+ *
+ * On error, NULL is returned and buf->flags is zero. */
+
+unsigned *
+glibtop_get_proclist_s (glibtop *server, glibtop_proclist *buf)
+{
+	DIR *proc;
+	struct dirent *entry;
+	char buffer [BUFSIZ];
+	unsigned count, total, pid;
+	unsigned pids [BLOCK_COUNT], *pids_chain = NULL;
+	unsigned pids_size = 0, pids_offset = 0, new_size;
+	struct stat statb;
+	int len, i, ok;
+
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_proclist));
+
+	proc = opendir ("/proc");
+	if (!proc) return NULL;
+
+	/* read every every entry in /proc */
+
+	for (count = total = 0, entry = readdir (proc); entry; entry = readdir (proc)) {
+		ok = 1; len = strlen (entry->d_name);
+
+		/* does it consist entirely of digits? */
+		
+		for (i = 0; i < len; i++)
+			if (!isdigit (entry->d_name [i])) ok = 0;
+		if (!ok) continue;
+
+		/* convert it in a number */
+
+		if (sscanf (entry->d_name, "%u", &pid) != 1) continue;
+
+		/* is it really a directory? */
+
+		sprintf (buffer, "/proc/%d", pid);
+		
+		if (stat (buffer, &statb)) continue;
+
+		if (!S_ISDIR (statb.st_mode)) continue;
+
+		/* Fine. Now we first try to store it in pids. If this buffer is
+		 * full, we copy it to the pids_chain. */
+
+		if (count >= BLOCK_COUNT) {
+			/* The following call to glibtop_realloc will be equivalent to
+			 * glibtop_malloc if pids_chain is NULL. We just calculate the
+			 * new size and copy pids to the beginning of the newly allocated
+			 * block. */
+
+			new_size = pids_size + BLOCK_SIZE;
+
+			pids_chain = glibtop_realloc_r (server, pids_chain, new_size);
+
+			memcpy (pids_chain + pids_offset, pids, BLOCK_SIZE);
+
+			pids_size = new_size;
+
+			pids_offset += BLOCK_COUNT;
+
+			count = 0;
+		}
+
+		/* pids is now big enough to hold at least one single pid. */
+		
+		pids [count++] = pid;
+
+		total++;
+	}
+	
+	closedir (proc);
+
+	/* count is only zero if an error occured (one a running Linux system, we
+	 * only have at least one single process). */
+
+	if (!count) return NULL;
+
+	/* The following call to glibtop_realloc will be equivalent to
+	 * glibtop_malloc if pids_chain is NULL. We just calculate the
+	 * new size and copy pids to the beginning of the newly allocated
+	 * block. */
+	
+	new_size = pids_size + count * sizeof (unsigned);
+	
+	pids_chain = glibtop_realloc_r (server, pids_chain, new_size);
+	
+	memcpy (pids_chain + pids_offset, pids, count * sizeof (unsigned));
+	
+	pids_size = new_size;
+	
+	pids_offset += BLOCK_COUNT;
+
+	/* Since everything is ok now, we can set buf->flags, fill in the remaining fields
+	   and return pids_chain. */
+
+	buf->flags = _glibtop_sysdeps_proclist;
+
+	buf->size = sizeof (unsigned);
+	buf->number = total;
+
+	buf->total = total * sizeof (unsigned);
+
+	return pids_chain;
+}
diff --git a/sysdeps/kernel/procmem.c b/sysdeps/kernel/procmem.c
new file mode 100644
index 00000000..5e7c6bb7
--- /dev/null
+++ b/sysdeps/kernel/procmem.c
@@ -0,0 +1,65 @@
+/* $Id$ */
+
+/* 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.h>
+#include <glibtop/error.h>
+#include <glibtop/procmem.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_proc_mem =
+(1 << GLIBTOP_PROC_MEM_SIZE) + (1 << GLIBTOP_PROC_MEM_VSIZE) +
+(1 << GLIBTOP_PROC_MEM_RESIDENT) + (1 << GLIBTOP_PROC_MEM_SHARE) +
+(1 << GLIBTOP_PROC_MEM_RSS) + (1 << GLIBTOP_PROC_MEM_RSS_RLIM);
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_proc_mem_s (glibtop *server, glibtop_proc_mem *buf, pid_t pid)
+{
+	union table tbl;
+
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_proc_mem));
+
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags = _glibtop_sysdeps_proc_mem;
+		return;
+	}
+
+	if (table (TABLE_PROC_MEM, &tbl, &pid))
+		glibtop_error_r (server, "table(TABLE_PROC_MEM): %s\n", strerror (errno));
+	
+	buf->rss = tbl.proc_mem.rss;
+	buf->rss_rlim = tbl.proc_mem.rlim;
+
+	if (table (TABLE_PROC_SEGMENT, &tbl, &pid))
+		glibtop_error_r (server, "table(TABLE_PROC_SEGMENT): %s\n", strerror (errno));
+	
+	buf->flags = _glibtop_sysdeps_proc_mem;
+
+	buf->vsize = tbl.proc_segment.vsize;
+	buf->size = tbl.proc_segment.size;
+	buf->resident = tbl.proc_segment.resident;
+	buf->share = tbl.proc_segment.shared;
+}
diff --git a/sysdeps/kernel/procsegment.c b/sysdeps/kernel/procsegment.c
new file mode 100644
index 00000000..d13fcd94
--- /dev/null
+++ b/sysdeps/kernel/procsegment.c
@@ -0,0 +1,68 @@
+/* $Id$ */
+
+/* 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 <config.h>
+#include <glibtop/error.h>
+#include <glibtop/procsegment.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_proc_segment =
+(1 << GLIBTOP_PROC_SEGMENT_TRS) + (1 << GLIBTOP_PROC_SEGMENT_LRS) +
+(1 << GLIBTOP_PROC_SEGMENT_DRS) + (1 << GLIBTOP_PROC_SEGMENT_DT) +
+(1 << GLIBTOP_PROC_SEGMENT_START_CODE) + (1 << GLIBTOP_PROC_SEGMENT_END_CODE) +
+(1 << GLIBTOP_PROC_SEGMENT_START_STACK);
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_proc_segment_s (glibtop *server, glibtop_proc_segment *buf,
+			    pid_t pid)
+{
+	union table tbl;
+
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_proc_segment));
+
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags = _glibtop_sysdeps_proc_segment;
+		return;
+	}
+
+	if (table (TABLE_PROC_MEM, &tbl, &pid))
+		glibtop_error_r (server, "table(TABLE_PROC_MEM): %s\n", strerror (errno));
+	
+	buf->start_code = tbl.proc_mem.start_code;
+	buf->end_code = tbl.proc_mem.end_code;
+	buf->start_stack = tbl.proc_mem.start_stack;
+
+	if (table (TABLE_PROC_SEGMENT, &tbl, &pid))
+		glibtop_error_r (server, "table(TABLE_PROC_SEGMENT): %s\n", strerror (errno));
+
+	buf->flags = _glibtop_sysdeps_proc_segment;
+
+	buf->trs = tbl.proc_segment.trs;
+	buf->lrs = tbl.proc_segment.lrs;
+	buf->drs = tbl.proc_segment.drs;
+	buf->dt = tbl.proc_segment.dt;
+}
diff --git a/sysdeps/kernel/procsignal.c b/sysdeps/kernel/procsignal.c
new file mode 100644
index 00000000..38795315
--- /dev/null
+++ b/sysdeps/kernel/procsignal.c
@@ -0,0 +1,59 @@
+/* $Id$ */
+
+/* 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.h>
+#include <glibtop/error.h>
+#include <glibtop/procsignal.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_proc_signal =
+(1 << GLIBTOP_PROC_SIGNAL_SIGNAL) + (1 << GLIBTOP_PROC_SIGNAL_BLOCKED) +
+(1 << GLIBTOP_PROC_SIGNAL_SIGIGNORE) + (1 << GLIBTOP_PROC_SIGNAL_SIGCATCH);
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_proc_signal_s (glibtop *server, glibtop_proc_signal *buf, pid_t pid)
+{
+	union table tbl;
+
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_proc_signal));
+
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags = _glibtop_sysdeps_proc_signal;
+		return;
+	}
+
+	if (table (TABLE_PROC_SIGNAL, &tbl, &pid))
+		glibtop_error_r (server, "table(TABLE_PROC_SIGNAL): %s\n", strerror (errno));
+
+	buf->flags = _glibtop_sysdeps_proc_signal;
+
+	buf->signal = tbl.proc_signal.signal;
+	buf->blocked = tbl.proc_signal.blocked;
+	buf->sigignore = tbl.proc_signal.ignored;
+	buf->sigcatch = tbl.proc_signal.caught;
+	
+}
diff --git a/sysdeps/kernel/procstate.c b/sysdeps/kernel/procstate.c
new file mode 100644
index 00000000..a8a7e153
--- /dev/null
+++ b/sysdeps/kernel/procstate.c
@@ -0,0 +1,65 @@
+/* $Id$ */
+
+/* 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.h>
+#include <glibtop/error.h>
+#include <glibtop/procstate.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_proc_state =
+(1 << GLIBTOP_PROC_STATE_CMD) + (1 << GLIBTOP_PROC_STATE_STATE);
+
+/* Provides detailed information about a process. */
+
+#define NR_STATES	7
+
+void
+glibtop_get_proc_state_s (glibtop *server, glibtop_proc_state *buf, pid_t pid)
+{
+	union table tbl;
+	static const char states [NR_STATES] = { 'R', 'S', 'D', 'Z', 'T', 'W', '.' };
+	unsigned state;
+
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_proc_state));
+
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags = _glibtop_sysdeps_proc_state;
+		return;
+	}
+
+	if (table (TABLE_PROC_STATE, &tbl, &pid))
+		glibtop_error_r (server, "table(TABLE_PROC_STATE): %s\n", strerror (errno));
+
+	buf->flags = _glibtop_sysdeps_proc_state;
+
+	memcpy (buf->cmd, tbl.proc_state.comm, sizeof (tbl.proc_state.comm));
+
+	state = (unsigned) tbl.proc_state.state;
+
+	if (state >= NR_STATES)
+		state = NR_STATES;
+
+	buf->state = states [state];
+}
diff --git a/sysdeps/kernel/proctime.c b/sysdeps/kernel/proctime.c
new file mode 100644
index 00000000..6b5945a2
--- /dev/null
+++ b/sysdeps/kernel/proctime.c
@@ -0,0 +1,61 @@
+/* $Id$ */
+
+/* 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.h>
+#include <glibtop/error.h>
+#include <glibtop/proctime.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_proc_time =
+(1 << GLIBTOP_PROC_TIME_UTIME) + (1 << GLIBTOP_PROC_TIME_CUTIME) +
+(1 << GLIBTOP_PROC_TIME_STIME) + (1 << GLIBTOP_PROC_TIME_CSTIME) +
+(1 << GLIBTOP_PROC_TIME_TIMEOUT) + (1 << GLIBTOP_PROC_TIME_IT_REAL_VALUE) +
+(1 << GLIBTOP_PROC_TIME_START_TIME);
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_proc_time_s (glibtop *server, glibtop_proc_time *buf, pid_t pid)
+{
+	union table tbl;
+
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_proc_time));
+
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags = _glibtop_sysdeps_proc_time;
+		return;
+	}
+
+	if (table (TABLE_PROC_TIME, &tbl, &pid))
+	  glibtop_error_r (server, "table(TABLE_PROC_TIME): %s\n", strerror (errno));
+
+	buf->utime = tbl.proc_time.utime;
+	buf->stime = tbl.proc_time.stime;
+	buf->cutime = tbl.proc_time.cutime;
+	buf->cstime = tbl.proc_time.cstime;
+	buf->timeout = tbl.proc_time.timeout;
+	buf->it_real_value = tbl.proc_time.it_real_value;
+	buf->start_time = tbl.proc_time.start_time;
+}
diff --git a/sysdeps/kernel/procuid.c b/sysdeps/kernel/procuid.c
new file mode 100644
index 00000000..3200c07d
--- /dev/null
+++ b/sysdeps/kernel/procuid.c
@@ -0,0 +1,100 @@
+/* $Id$ */
+
+/* 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.h>
+#include <glibtop/error.h>
+#include <glibtop/procuid.h>
+
+#include "kernel.h"
+
+static const unsigned long _glibtop_sysdeps_proc_uid =
+(1 << GLIBTOP_PROC_UID_UID) + (1 << GLIBTOP_PROC_UID_EUID) +
+(1 << GLIBTOP_PROC_UID_GID) + (1 << GLIBTOP_PROC_UID_EGID) +
+(1 << GLIBTOP_PROC_UID_PID) + (1 << GLIBTOP_PROC_UID_PPID) +
+(1 << GLIBTOP_PROC_UID_PGRP) + (1 << GLIBTOP_PROC_UID_SESSION) +
+(1 << GLIBTOP_PROC_UID_TTY) + (1 << GLIBTOP_PROC_UID_TPGID) +
+(1 << GLIBTOP_PROC_UID_PRIORITY) + (1 << GLIBTOP_PROC_UID_NICE);
+
+#define LINUX_VERSION(x,y,z)	(0x10000*(x) + 0x100*(y) + z)
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_proc_uid_s (glibtop *server, glibtop_proc_uid *buf, pid_t pid)
+{
+	union table tbl;
+	long def_priority, priority, nice;
+	
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_proc_uid));
+
+	if (pid == 0) {
+		/* Client is only interested in the flags. */
+		buf->flags = _glibtop_sysdeps_proc_uid;
+		return;
+	}
+
+	if (table (TABLE_PROC_UID, &tbl, &pid))
+	  glibtop_error_r (server, "table(TABLE_PROC_UID): %s\n", strerror (errno));
+
+	buf->flags = _glibtop_sysdeps_proc_uid;
+
+	buf->uid = tbl.proc_uid.uid;
+	buf->euid = tbl.proc_uid.euid;
+	buf->gid = tbl.proc_uid.gid;
+	buf->egid = tbl.proc_uid.egid;
+
+	buf->pid = tbl.proc_uid.pid;
+	buf->ppid = tbl.proc_uid.ppid;
+	buf->pgrp = tbl.proc_uid.pgrp;
+	buf->session = tbl.proc_uid.session;
+	buf->tty = tbl.proc_uid.tty;
+	buf->tpgid = tbl.proc_uid.tpgid;
+
+	/* scale priority and nice values from timeslices to -20..20 */
+	/* to make it look like a "normal" unix priority/nice value  */
+
+	def_priority = tbl.proc_uid.def_priority;
+
+	priority = tbl.proc_uid.counter;
+	priority = 20 - (priority * 10 + def_priority / 2) / def_priority;
+	nice = tbl.proc_uid.priority;
+	nice = 20 - (nice * 20 + def_priority / 2) / def_priority;
+
+	buf->priority = (int) priority;
+	buf->nice = (int) nice;
+
+	if (buf->tty == 0)
+		/* the old notty val, update elsewhere bef. moving to 0 */
+		buf->tty = -1;
+	
+	if (server->os_version_code < LINUX_VERSION(1,3,39)) {
+		/* map old meanings to new */
+		buf->priority = 2*15 - buf->priority;
+		buf->nice = 15 - buf->nice;
+	}
+	if (server->os_version_code < LINUX_VERSION(1,1,30) && buf->tty != -1)
+		/* when tty wasn't full devno */
+		buf->tty = 4*0x100 + buf->tty;
+	
+	buf->flags = _glibtop_sysdeps_proc_uid;
+}
diff --git a/sysdeps/kernel/sem_limits.c b/sysdeps/kernel/sem_limits.c
new file mode 100644
index 00000000..88176f0b
--- /dev/null
+++ b/sysdeps/kernel/sem_limits.c
@@ -0,0 +1,61 @@
+/* $Id$ */
+
+/* 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/sem_limits.h>
+
+#include <sys/ipc.h>
+#include <sys/sem.h>
+
+static unsigned long _glibtop_sysdeps_sem_limits =
+(1 << GLIBTOP_IPC_SEMMAP) + (1 << GLIBTOP_IPC_SEMMNI) +
+(1 << GLIBTOP_IPC_SEMMNS) + (1 << GLIBTOP_IPC_SEMMNU) +
+(1 << GLIBTOP_IPC_SEMMSL) + (1 << GLIBTOP_IPC_SEMOPM) +
+(1 << GLIBTOP_IPC_SEMUME) + (1 << GLIBTOP_IPC_SEMUSZ) +
+(1 << GLIBTOP_IPC_SEMVMX) + (1 << GLIBTOP_IPC_SEMAEM);
+
+/* Provides information about sysv ipc limits. */
+
+void
+glibtop_get_sem_limits_s (glibtop *server, glibtop_sem_limits *buf)
+{
+	struct seminfo	seminfo;
+	union semun	arg;  
+  
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_sem_limits));
+  
+	buf->flags = _glibtop_sysdeps_sem_limits;
+  
+	arg.array = (ushort *) &seminfo;
+	semctl (0, 0, IPC_INFO, arg);
+  
+	buf->semmap = seminfo.semmap;
+	buf->semmni = seminfo.semmni;
+	buf->semmns = seminfo.semmns;
+	buf->semmnu = seminfo.semmnu;
+	buf->semmsl = seminfo.semmsl;
+	buf->semopm = seminfo.semopm;
+	buf->semume = seminfo.semume;
+	buf->semusz = seminfo.semusz;
+	buf->semvmx = seminfo.semvmx;
+	buf->semaem = seminfo.semaem;
+}
diff --git a/sysdeps/kernel/shm_limits.c b/sysdeps/kernel/shm_limits.c
new file mode 100644
index 00000000..2849b22d
--- /dev/null
+++ b/sysdeps/kernel/shm_limits.c
@@ -0,0 +1,52 @@
+/* $Id$ */
+
+/* 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/shm_limits.h>
+
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
+static unsigned long _glibtop_sysdeps_shm_limits =
+(1 << GLIBTOP_IPC_SHMMAX) + (1 << GLIBTOP_IPC_SHMMIN) +
+(1 << GLIBTOP_IPC_SHMMNI) + (1 << GLIBTOP_IPC_SHMSEG) +
+(1 << GLIBTOP_IPC_SHMALL);
+
+/* Provides information about sysv ipc limits. */
+
+void
+glibtop_get_shm_limits_s (glibtop *server, glibtop_shm_limits *buf)
+{
+	struct shminfo	shminfo;
+  
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_shm_limits));
+  
+	buf->flags = _glibtop_sysdeps_shm_limits;
+  
+	shmctl (0, IPC_INFO, (struct shmid_ds *) &shminfo);
+  
+	buf->shmmax = shminfo.shmmax;
+	buf->shmmin = shminfo.shmmin;
+	buf->shmmni = shminfo.shmmni;
+	buf->shmseg = shminfo.shmseg;
+	buf->shmall = shminfo.shmall;
+}
diff --git a/sysdeps/kernel/swap.c b/sysdeps/kernel/swap.c
new file mode 100644
index 00000000..5e3f62f8
--- /dev/null
+++ b/sysdeps/kernel/swap.c
@@ -0,0 +1,51 @@
+/* $Id$ */
+
+/* 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 <config.h>
+#include <glibtop/error.h>
+#include <glibtop/swap.h>
+
+#include "kernel.h"
+
+static unsigned long _glibtop_sysdeps_swap =
+(1 << GLIBTOP_SWAP_TOTAL) + (1 << GLIBTOP_SWAP_USED) +
+(1 << GLIBTOP_SWAP_FREE);
+
+/* Provides information about swap usage. */
+
+void
+glibtop_get_swap_s (glibtop *server, glibtop_swap *buf)
+{
+	union table tbl;
+	
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_swap));
+
+	if (table (TABLE_SWAP, &tbl, NULL))
+		glibtop_error_r (server, "table(TABLE_SWAP): %s\n", strerror (errno));
+
+	buf->flags = _glibtop_sysdeps_swap;
+
+	buf->total = tbl.swap.total;
+	buf->used  = tbl.swap.used;
+	buf->free  = tbl.swap.free;
+}
diff --git a/sysdeps/kernel/uptime.c b/sysdeps/kernel/uptime.c
new file mode 100644
index 00000000..63fdc859
--- /dev/null
+++ b/sysdeps/kernel/uptime.c
@@ -0,0 +1,54 @@
+/* $Id$ */
+
+/* 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 <config.h>
+#include <glibtop/error.h>
+#include <glibtop/uptime.h>
+
+#include "kernel.h"
+
+static unsigned long _glibtop_sysdeps_uptime =
+(1 << GLIBTOP_UPTIME_UPTIME) + (1 << GLIBTOP_UPTIME_IDLETIME);
+
+/* Provides uptime and idle time. */
+
+void
+glibtop_get_uptime_s (glibtop *server, glibtop_uptime *buf)
+{
+	union table tbl;
+	
+	glibtop_init_r (&server, 0, 0);
+
+	memset (buf, 0, sizeof (glibtop_uptime));
+
+	if (table (TABLE_UPTIME, &tbl, NULL))
+		glibtop_error_r (server, "table(TABLE_UPTIME): %s\n", strerror (errno));
+	
+	buf->flags = _glibtop_sysdeps_uptime;
+
+#if 0
+	fprintf (stderr, "Table (%u) = %lu, %lu\n",
+		 TABLE_UPTIME, tbl.uptime.uptime, tbl.uptime.idle);
+#endif
+
+	buf->uptime = (double) tbl.uptime.uptime / HZ;
+	buf->idletime = (double) tbl.uptime.idle / HZ;
+}