1 files changed, 141 insertions, 0 deletions
diff --git a/e2fsck/scantest.c b/e2fsck/scantest.c
new file mode 100644
index 0000000..ed3595f
--- /dev/null
+++ b/e2fsck/scantest.c
@@ -0,0 +1,141 @@
+/*
+ * scantest.c - test the speed of the inode scan routine
+ */
+
+#include "config.h"
+#include <string.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <termios.h>
+#include <time.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
+#include <unistd.h>
+#include <sys/ioctl.h>
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+#include <sys/resource.h>
+
+#include "et/com_err.h"
+#include "../version.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/time.h>
+
+#include "ext2fs/ext2_fs.h"
+#include "ext2fs/ext2fs.h"
+
+
+extern int isatty(int);
+
+const char * device_name = NULL;
+
+/*
+ * This structure is used for keeping track of how much resources have
+ * been used for a particular pass of e2fsck.
+ */
+struct resource_track {
+	struct timeval time_start;
+	struct timeval user_start;
+	struct timeval system_start;
+	void	*brk_start;
+};
+
+struct resource_track	global_rtrack;
+
+void init_resource_track(struct resource_track *track)
+{
+	struct rusage r;
+
+	track->brk_start = sbrk(0);
+	gettimeofday(&track->time_start, 0);
+	getrusage(RUSAGE_SELF, &r);
+	track->user_start = r.ru_utime;
+	track->system_start = r.ru_stime;
+}
+
+static __inline__ float timeval_subtract(struct timeval *tv1,
+					 struct timeval *tv2)
+{
+	return ((tv1->tv_sec - tv2->tv_sec) +
+		((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000);
+}
+
+static void print_resource_track(struct resource_track *track)
+{
+	struct rusage r;
+	struct timeval time_end;
+
+	gettimeofday(&time_end, 0);
+	getrusage(RUSAGE_SELF, &r);
+
+	printf(_("Memory used: %lu, elapsed time: %6.3f/%6.3f/%6.3f\n"),
+	       (unsigned long)((char *)sbrk(0) - (char *)track->brk_start),
+	       timeval_subtract(&time_end, &track->time_start),
+	       timeval_subtract(&r.ru_utime, &track->user_start),
+	       timeval_subtract(&r.ru_stime, &track->system_start));
+}
+
+
+
+int main (int argc, char *argv[])
+{
+	errcode_t	retval = 0;
+	int		exit_value = 0;
+	int		i;
+	ext2_filsys	fs;
+	ext2_inode_scan	scan;
+	ext2_ino_t	ino;
+	struct ext2_inode inode;
+
+	printf(_("size of inode=%d\n"), sizeof(inode));
+
+	device_name = "/dev/hda3";
+
+	init_resource_track(&global_rtrack);
+
+	retval = ext2fs_open(device_name, 0,
+			     0, 0, unix_io_manager, &fs);
+	if (retval) {
+		com_err(argv[0], retval, _("while trying to open %s"),
+			device_name);
+		exit(1);
+	}
+
+	retval = ext2fs_open_inode_scan(fs, 0, &scan);
+	if (retval) {
+		com_err(argv[0], retval, _("while opening inode scan"));
+		exit(1);
+	}
+	retval = ext2fs_get_next_inode(scan, &ino, &inode);
+	if (retval) {
+		com_err(argv[0], retval, _("while starting inode scan"));
+		exit(1);
+	}
+	while (ino) {
+		if (!inode.i_links_count)
+			goto next;
+		printf("%lu\n", inode.i_blocks);
+	next:
+		retval = ext2fs_get_next_inode(scan, &ino, &inode);
+		if (retval) {
+			com_err(argv[0], retval,
+				_("while doing inode scan"));
+			exit(1);
+		}
+	}
+
+
+	ext2fs_close_free(&fs);
+
+	print_resource_track(&global_rtrack);
+
+	return exit_value;
+}