Added glibtop_get_proc_open_files implementation by Henry Zhang

2006-09-19  Benoît Dejean  <benoit@placenet.org>

        * Makefile.am:
        * procopenfiles.c: (glibtop_init_proc_open_files_s),
        (glibtop_get_proc_open_files_s):

        Added glibtop_get_proc_open_files implementation by
        Henry Zhang <hua.zhang@sun.com>.
        Closes #346174.

sysdeps/solaris/ChangeLog

@@ -1,3 +1,13 @@
+2006-09-19  Benoît Dejean  <benoit@placenet.org>
+
+	* Makefile.am:
+	* procopenfiles.c: (glibtop_init_proc_open_files_s),
+	(glibtop_get_proc_open_files_s):
+
+	Added glibtop_get_proc_open_files implementation by 
+	Henry Zhang <hua.zhang@sun.com>.
+	Closes #346174.
+
 2006-06-24  Benoît Dejean  <benoit@placenet.org>
 
 	* proctime.c: (glibtop_get_proc_time_s):

sysdeps/solaris/Makefile.am

@@ -8,6 +8,7 @@ libgtop_sysdeps_2_0_la_SOURCES	= open.c close.c siglist.c cpu.c mem.c \
 				  proclist.c procstate.c procuid.c \
 				  proctime.c procmem.c procsignal.c \
 				  prockernel.c procsegment.c procargs.c \
+				  procopenfiles.c \
 				  procmap.c netload.c ppp.c procdata.c netlist.c
 
 libgtop_sysdeps_2_0_la_LDFLAGS	= $(LT_VERSION_INFO)

sysdeps/solaris/procopenfiles.c

@@ -0,0 +1,130 @@
+/* $Id$ */
+
+/* Copyright (C) 2006 Henry Zhang
+   This file is part of LibGTop 2.14.
+
+   Contributed by Henry Zhang <hua.zhang@sun.com>, July 2006.
+
+   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 <config.h>
+#include <glibtop.h>
+#include <glibtop/error.h>
+#include <glibtop/procopenfiles.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "glibtop_private.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;
+}
+
+
+
+/* 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 filename [BUFSIZ];
+	GArray *entries;
+	struct dirent *direntry;
+	DIR *dir;
+	int errno;
+
+	glibtop_init_s (&server, GLIBTOP_SYSDEPS_PROC_OPEN_FILES, 0);
+
+	memset (buf, 0, sizeof (glibtop_proc_open_files));
+
+	sprintf (filename, "/proc/%d/fd", pid);
+
+	dir = opendir (filename);
+	if (!dir) return NULL;
+
+	entries = g_array_new(FALSE, FALSE, sizeof(glibtop_open_files_entry));
+
+	while((direntry = readdir(dir))) {
+		char tgt [BUFSIZ];
+		int rv;
+		glibtop_open_files_entry entry = {0};
+		struct stat statbuf;
+
+		if(direntry->d_name[0] == '.')
+			continue;
+
+		if ((entry.fd = (int) g_ascii_strtoull(direntry->d_name, NULL, 10)) == 0)
+			continue;
+					
+		/* from /path get object name */
+		g_snprintf(filename, sizeof filename, "/proc/%d/path/%s",
+			   pid, direntry->d_name);
+
+		rv = readlink(filename, tgt, sizeof(tgt) - 1);
+		/* read object, if not have, set it as NULL, but this fd still need to insert into the array */
+		if(rv < 0) 
+			rv = 0;
+		tgt[rv] = '\0';
+		
+		/* from /fd get the stat data */
+		g_snprintf(filename, sizeof filename, "/proc/%d/fd/%s",
+			   pid, direntry->d_name);
+
+		if(stat (filename, &statbuf))
+			statbuf.st_mode = 0;		
+
+		switch (statbuf.st_mode & S_IFMT) {
+			case S_IFIFO:    /* pipe */
+				entry.type = GLIBTOP_FILE_TYPE_PIPE;
+				break;
+			case S_IFSOCK:	/* socket */
+			/* at solaris, now a little difficult to tell the Socket type, so here I 
+			   give the type 0, it will not impact the existed code. Later will provide 
+			   a patch to tell the type, and get the object name */
+				entry.type = 0;
+				break;
+			default:
+				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);
+}