[Kdfs-commits] [tools]UNNAMED PROJECT branch, master, updated. 4078b40ab923092c6ef6b49dac3e885bafadbe56

[Marko O. <d0...@us...>]

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- Log -----------------------------------------------------------------
commit 4078b40ab923092c6ef6b49dac3e885bafadbe56
Author: Marko Obrovac <mar...@in...>
Date:   Thu Mar 25 18:53:59 2010 +0100

    Add the kdfs_stat utility
    
    The kdfs_stat lists the extents found in the kdfs meta file as pointed
    to by the argument passed to it.
    Modify Makefile accordingly.

diff --git a/scripts/Makefile.in b/scripts/Makefile.in
index b55c34b..62d9529 100644
--- a/scripts/Makefile.in
+++ b/scripts/Makefile.in
@@ -1,4 +1,4 @@
-# Makefile.in generated by automake 1.11 from Makefile.am.
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
 # @configure_input@
 
 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
diff --git a/tools/Makefile.am b/tools/Makefile.am
index 4c48a7d..9ccb68d 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -11,7 +11,7 @@ sbindir=$(exec-prefix)/sbin
 
 dist_bin_SCRIPTS = krg_legacy_scheduler krgboot_helper krginit_helper
 
-bin_PROGRAMS = migrate checkpoint restart krgadm krgcapset krgcr-run krgboot krginit ipccheckpoint ipcrestart netclient
+bin_PROGRAMS = migrate checkpoint restart krgadm krgcapset krgcr-run krgboot krginit ipccheckpoint ipcrestart netclient kdfs_stat
 sbin_PROGRAMS = mkfs.kdfs
 
 INCLUDES = -I@top_srcdir@/libs/include
@@ -29,6 +29,7 @@ ipccheckpoint_SOURCES = ipccheckpoint.c
 ipcrestart_SOURCES = ipcrestart.c
 mkfs_kdfs_SOURCES = mkfs_kdfs.c
 netclient_SOURCES = netclient.c
+kdfs_stat_SOURCES = kdfs_stat.c
 
 EXTRA_DIST = krginit_helper.conf
 
diff --git a/tools/kdfs_stat.c b/tools/kdfs_stat.c
new file mode 100644
index 0000000..9eae9fd
--- /dev/null
+++ b/tools/kdfs_stat.c
@@ -0,0 +1,77 @@
+#include <stdio.h>
+
+
+typedef long long loff_t;
+typedef unsigned long pgoff_t;
+typedef short  kdfs_node_t;
+typedef unsigned short umode_t;
+typedef unsigned int uid_t;
+typedef unsigned int gid_t;
+
+struct timespec {
+	long tv_sec;
+	long tv_nsec;
+};
+
+struct kdfs_physical_inode {
+	loff_t size;
+	umode_t mode;
+	unsigned int nlink;
+	unsigned long version;
+	uid_t uid;
+	gid_t gid;
+	struct timespec atime;
+	struct timespec mtime;
+	struct timespec ctime;
+};
+
+struct kdfs_file_extent_info {
+	pgoff_t page_first;       /* the first page no owned by a node */
+	pgoff_t page_last;        /* the last page no owned by a node */
+	kdfs_node_t extent_owner; /* the node holding the pages contents */
+};
+
+
+int main(int argc, char **argv) {
+	
+	FILE *f;
+	struct kdfs_physical_inode kdfs_inode;
+	struct kdfs_file_extent_info info;
+	size_t no_extents, rec;
+	
+	if( argc == 1 ) {
+		fprintf( stderr, "Usage: %s <kdfs_meta_file_to_stat>\n", argv[0] );
+		return 1;
+	}
+	
+	f = fopen( argv[1], "rb" );
+	if( !f ) {
+		fprintf( stderr, "Error opening file %s.\n", argv[1] );
+		return 1;
+	}
+	
+	/* read the kdfs inode info */
+	fread( ( void * )&kdfs_inode, sizeof( struct kdfs_physical_inode ), 1, f );
+	
+	if( !feof( f ) ) {
+		fread( ( void *)&no_extents, sizeof( size_t ), 1, f );
+		fprintf( stdout, "Number of extent records found: %d\n\n", ( int )no_extents );
+		if( no_extents > 0 ) {
+			fprintf( stdout, "+-----+---------------------+---------------------+---------------------+------+\n" );
+			fprintf( stdout, "| Rec | Frst page in extent | Last page in extent |  No of pages in ext | Node |\n" );
+			fprintf( stdout, "+-----+---------------------+---------------------+---------------------+------+\n" );
+		}
+		for( rec = 0; rec < no_extents; rec++ ) {
+			fread( ( void *)&info, sizeof( struct kdfs_file_extent_info ), 1, f );
+			fprintf( stdout, "| %3d | %19lu | %19lu | %19lu | %4d |\n", ( int )rec, info.page_first, info.page_last, info.page_last - info.page_first + 1, info.extent_owner );
+		}
+		fprintf( stdout, "+-----+---------------------+---------------------+---------------------+------+\n\n" );
+	} else {
+		fprintf( stdout, "No extents info has been yet registered...\n" );
+	}
+	
+	fclose( f );
+	
+	return 0;
+	
+}

-----------------------------------------------------------------------

Summary of changes:
 scripts/Makefile.in |    2 +-
 tools/Makefile.am   |    3 +-
 tools/kdfs_stat.c   |   77 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 80 insertions(+), 2 deletions(-)
 create mode 100644 tools/kdfs_stat.c


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