New feature by nick@reloco.com.ar (Nicolás Lichtmaier).

* configure.in:
	* examples/.cvsignore:
	* examples/Makefile.am:
	* examples/openfiles.c: (show_open_files), (main):
	* features.def:
	* include/glibtop/Makefile.am:
	* include/glibtop/command.h:
	* include/glibtop/procopenfiles.h:
	* include/glibtop/sysdeps.h:
	* include/glibtop/union.h:
	* structures.def:
	* sysdeps/linux/Makefile.am:
	* sysdeps/linux/procopenfiles.c: (glibtop_init_proc_open_files_s),
	(get_socket_endpoint), (glibtop_get_proc_open_files_s):
	* sysdeps/stub/Makefile.am:
	* sysdeps/stub/procopenfiles.c: (glibtop_init_proc_open_files_s),
	(glibtop_get_proc_open_files_s):

	New feature by nick@reloco.com.ar (Nicolás Lichtmaier).

	glibtop_get_open_files(pid) -> list of files by process.
	TODO: Add documentation.

sysdeps/linux/Makefile.am

@@ -8,7 +8,7 @@ libgtop_sysdeps_2_0_la_SOURCES	= open.c close.c cpu.c mem.c swap.c \
 				  proctime.c procmem.c procsignal.c prockernel.c \
 				  procsegment.c procargs.c procmap.c siglist.c \
 				  sysinfo.c netload.c ppp.c glibtop_private.c \
-				  fsusage.c netlist.c
+				  fsusage.c netlist.c procopenfiles.c
 
 libgtop_sysdeps_2_0_la_LIBADD	=  @GLIB_LIBS@
 

sysdeps/linux/procopenfiles.c

@@ -0,0 +1,150 @@
+/* $Id$ */
+
+/* Copyright (C) 1998-99 Martin Baulig
+   Copyright (C) 2004 Nicol<6F>s Lichtmaier
+   This file is part of LibGTop 1.0.
+
+   Modified by Nicol<6F>s Lichtmaier to give a process open files.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop 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.
+
+   LibGTop 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with LibGTop; see the file COPYING. 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/procopenfiles.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <string.h>
+#include <stdio.h>
+#include <arpa/inet.h>
+
+
+static const unsigned long _glibtop_sysdeps_proc_open_files =
+(1L << GLIBTOP_PROC_OPEN_FILES_NUMBER)|
+(1L << GLIBTOP_PROC_OPEN_FILES_TOTAL)|
+(1L << GLIBTOP_PROC_OPEN_FILES_SIZE);
+
+/* Init function. */
+
+void
+glibtop_init_proc_open_files_s (glibtop *server)
+{
+	server->sysdeps.proc_open_files = _glibtop_sysdeps_proc_open_files;
+}
+
+
+static void
+get_socket_endpoint(char *buf, int *prmtport, int s)
+{
+	FILE *f;
+	char l[1024];
+
+	buf[0] = '\0';
+	prmtport = 0;
+
+	f = fopen("/proc/net/tcp", "r");
+
+	if(!f)
+		return;
+
+	while(fgets(l, sizeof l, f))
+	{
+		unsigned int loc, locport, rmt;
+		int sock = -1;
+		sscanf(l, "  %*d: %8x:%4x %8x:%4x %*d %*x:%*x %*x:%*x %*d %*d %*d %d",
+			&loc, &locport, &rmt, prmtport, &sock);
+		if(sock == s)
+		{
+			inet_ntop(AF_INET, &rmt, buf, INET_ADDRSTRLEN);
+			break;
+		}
+	}
+
+	fclose(f);
+}
+
+/* Provides detailed information about a process' open files */
+
+glibtop_open_files_entry *
+glibtop_get_proc_open_files_s (glibtop *server, glibtop_proc_open_files *buf,	pid_t pid)
+{
+	char fn [BUFSIZ];
+	GArray *entries;
+	struct dirent *direntry;
+	int rv;
+	DIR *dir;
+
+	glibtop_init_s (&server, GLIBTOP_SYSDEPS_PROC_OPEN_FILES, 0);
+
+	memset (buf, 0, sizeof (glibtop_proc_open_files));
+
+	sprintf (fn, "/proc/%d/fd", pid);
+
+	dir = opendir (fn);
+	if (!dir) return NULL;
+
+	entries = g_array_new(FALSE, FALSE, sizeof(glibtop_open_files_entry));
+
+	while((direntry = readdir(dir))) {
+		char tgt [BUFSIZ];
+		glibtop_open_files_entry entry = {0};
+
+		if(direntry->d_name[0] == '.')
+			continue;
+
+		sprintf(fn, "/proc/%d/fd/%s", pid, direntry->d_name);
+		rv = readlink(fn, tgt, sizeof(tgt) - 1);
+
+		if(rv < 0)
+			continue;
+
+		tgt[rv] = '\0';
+
+		entry.fd = atoi(direntry->d_name);
+
+		if(g_str_has_prefix(tgt, "socket:["))
+		{
+			int sockfd;
+			entry.type = GLIBTOP_FILE_TYPE_INETSOCKET;
+			sockfd = atoi(tgt + 8);
+			get_socket_endpoint(entry.info.sock.dest_host,
+					    &(entry.info.sock.dest_port),
+					    sockfd);
+		}
+		else if(g_str_has_prefix(tgt, "pipe:["))
+		{
+			entry.type = GLIBTOP_FILE_TYPE_PIPE;
+		}
+		else
+		{
+			entry.type = GLIBTOP_FILE_TYPE_FILE;
+			g_strlcpy(entry.info.file.name, tgt, sizeof entry.info.file.name);
+		}
+
+		g_array_append_val(entries, entry);
+	}
+
+	closedir (dir);
+
+	buf->flags = _glibtop_sysdeps_proc_open_files;
+	buf->number = entries->len;
+	buf->size = sizeof(glibtop_open_files_entry);
+	buf->total = buf->number * buf->size;
+
+	return (glibtop_open_files_entry*)g_array_free(entries, FALSE);
+}