Adding upstream version 3.8.5.upstream/3.8.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 242 insertions, 0 deletions

diff --git a/src/fsstone/fsstone.c b/src/fsstone/fsstone.c
new file mode 100644
index 0000000..217cb04
--- /dev/null
+++ b/src/fsstone/fsstone.c
@@ -0,0 +1,242 @@
+/*++
+/* NAME
+/*	fsstone 1
+/* SUMMARY
+/*	measure directory operation overhead
+/* SYNOPSIS
+/* .fi
+/*	\fBfsstone\fR [\fB-cr\fR] [\fB-s \fIsize\fR]
+/*		\fImsg_count files_per_dir\fR
+/* DESCRIPTION
+/*	The \fBfsstone\fR command measures the cost of creating, renaming
+/*	and deleting queue files versus appending messages to existing
+/*	files and truncating them after use.
+/*
+/*	The program simulates the arrival of \fImsg_count\fR short messages,
+/*	and arranges for at most \fIfiles_per_dir\fR simultaneous files
+/*	in the same directory.
+/*
+/*	Options:
+/* .IP \fB-c\fR
+/*	Create and delete files.
+/* .IP \fB-r\fR
+/*	Rename files twice (requires \fB-c\fR).
+/* .IP \fB-s \fIsize\fR
+/*	Specify the file size in kbytes.
+/* DIAGNOSTICS
+/*	Problems are reported to the standard error stream.
+/* BUGS
+/*	The \fB-r\fR option renames files within the same directory.
+/*	For a more realistic simulation, the program should rename files
+/*	<i>between</i> directories, and should also have an option to use
+/*	<i>hashed</i> directories as implemented with, for example, the
+/*	\fBdir_forest\fR(3) module.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/time.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <msg_vstream.h>
+
+/* Global directory. */
+
+#include <mail_version.h>
+
+/* rename_file - rename a file */
+
+static void rename_file(int old, int new)
+{
+    char    new_path[BUFSIZ];
+    char    old_path[BUFSIZ];
+
+    sprintf(new_path, "%06d", new);
+    sprintf(old_path, "%06d", old);
+    if (rename(old_path, new_path))
+	msg_fatal("rename %s to %s: %m", old_path, new_path);
+}
+
+/* make_file - create a little file and use it */
+
+static void make_file(int seqno, int size)
+{
+    char    path[BUFSIZ];
+    char    buf[1024];
+    FILE   *fp;
+    int     i;
+
+    sprintf(path, "%06d", seqno);
+    if ((fp = fopen(path, "w")) == 0)
+	msg_fatal("open %s: %m", path);
+    memset(buf, 'x', sizeof(buf));
+    for (i = 0; i < size; i++)
+	if (fwrite(buf, 1, sizeof(buf), fp) != sizeof(buf))
+	    msg_fatal("fwrite: %m");
+    if (fsync(fileno(fp)))
+	msg_fatal("fsync: %m");
+    if (fclose(fp))
+	msg_fatal("fclose: %m");
+    if ((fp = fopen(path, "r")) == 0)
+	msg_fatal("open %s: %m", path);
+    while (fgets(path, sizeof(path), fp))
+	 /* void */ ;
+    if (fclose(fp))
+	msg_fatal("fclose: %m");
+}
+
+/* use_file - use existing file */
+
+static void use_file(int seqno)
+{
+    char    path[BUFSIZ];
+    FILE   *fp;
+    int     i;
+
+    sprintf(path, "%06d", seqno);
+    if ((fp = fopen(path, "w")) == 0)
+	msg_fatal("open %s: %m", path);
+    for (i = 0; i < 400; i++)
+	fprintf(fp, "hello");
+    if (fsync(fileno(fp)))
+	msg_fatal("fsync: %m");
+    if (fclose(fp))
+	msg_fatal("fclose: %m");
+    if ((fp = fopen(path, "r+")) == 0)
+	msg_fatal("open %s: %m", path);
+    while (fgets(path, sizeof(path), fp))
+	 /* void */ ;
+    if (ftruncate(fileno(fp), (off_t) 0))
+	msg_fatal("ftruncate: %m");;
+    if (fclose(fp))
+	msg_fatal("fclose: %m");
+}
+
+/* remove_file - delete specified file */
+
+static void remove_file(int seq)
+{
+    char    path[BUFSIZ];
+
+    sprintf(path, "%06d", seq);
+    if (remove(path))
+	msg_fatal("remove %s: %m", path);
+}
+
+/* remove_silent - delete specified file, silently */
+
+static void remove_silent(int seq)
+{
+    char    path[BUFSIZ];
+
+    sprintf(path, "%06d", seq);
+    (void) remove(path);
+}
+
+/* usage - explain */
+
+static void usage(char *myname)
+{
+    msg_fatal("usage: %s [-cr] [-s size] messages directory_entries", myname);
+}
+
+MAIL_VERSION_STAMP_DECLARE;
+
+int     main(int argc, char **argv)
+{
+    int     op_count;
+    int     max_file;
+    struct timeval start, end;
+    int     do_rename = 0;
+    int     do_create = 0;
+    int     seq;
+    int     ch;
+    int     size = 2;
+
+    /*
+     * Fingerprint executables and core dumps.
+     */
+    MAIL_VERSION_STAMP_ALLOCATE;
+
+    msg_vstream_init(argv[0], VSTREAM_ERR);
+    while ((ch = GETOPT(argc, argv, "crs:")) != EOF) {
+	switch (ch) {
+	case 'c':
+	    do_create++;
+	    break;
+	case 'r':
+	    do_rename++;
+	    break;
+	case 's':
+	    if ((size = atoi(optarg)) <= 0)
+		usage(argv[0]);
+	    break;
+	default:
+	    usage(argv[0]);
+	}
+    }
+
+    if (argc - optind != 2 || (do_rename && !do_create))
+	usage(argv[0]);
+    if ((op_count = atoi(argv[optind])) <= 0)
+	usage(argv[0]);
+    if ((max_file = atoi(argv[optind + 1])) <= 0)
+	usage(argv[0]);
+
+    /*
+     * Populate the directory with little files.
+     */
+    for (seq = 0; seq < max_file; seq++)
+	make_file(seq, size);
+
+    /*
+     * Simulate arrival and delivery of mail messages.
+     */
+    GETTIMEOFDAY(&start);
+    while (op_count > 0) {
+	seq %= max_file;
+	if (do_create) {
+	    remove_file(seq);
+	    make_file(seq, size);
+	    if (do_rename) {
+		rename_file(seq, seq + max_file);
+		rename_file(seq + max_file, seq);
+	    }
+	} else {
+	    use_file(seq);
+	}
+	seq++;
+	op_count--;
+    }
+    GETTIMEOFDAY(&end);
+    if (end.tv_usec < start.tv_usec) {
+	end.tv_sec--;
+	end.tv_usec += 1000000;
+    }
+    printf("elapsed time: %ld.%06ld\n",
+	   (long) (end.tv_sec - start.tv_sec),
+	   (long) (end.tv_usec - start.tv_usec));
+
+    /*
+     * Clean up directory fillers.
+     */
+    for (seq = 0; seq < max_file; seq++)
+	remove_silent(seq);
+    return (0);
+}