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/*
dbench version 2
Copyright (C) by Andrew Tridgell <tridge@samba.org> 1999, 2001
Copyright (C) 2001 by Martin Pool <mbp@samba.org>
This program 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 3 of the License, or
(at your option) any later version.
This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* Wrappers for system calls that catch errors. */
#include "dbench.h"
#define MAX_FILES 1000
static char buf[70000];
extern int line_count;
static struct {
int fd;
int handle;
} ftable[MAX_FILES];
void do_unlink(char *fname)
{
strupper(fname);
if (unlink(fname) != 0) {
printf("(%d) unlink %s failed (%s)\n",
line_count, fname, strerror(errno));
}
}
void expand_file(int fd, int size)
{
int s;
while (size) {
s = MIN(sizeof(buf), size);
write(fd, buf, s);
size -= s;
}
}
void do_open(char *fname, int handle, int size)
{
int fd, i;
int flags = O_RDWR|O_CREAT;
struct stat st;
static int count;
strupper(fname);
if (size == 0) flags |= O_TRUNC;
fd = open(fname, flags, 0600);
if (fd == -1) {
printf("(%d) open %s failed for handle %d (%s)\n",
line_count, fname, handle, strerror(errno));
return;
}
fstat(fd, &st);
if (size > st.st_size) {
#if DEBUG
printf("(%d) expanding %s to %d from %d\n",
line_count, fname, size, (int)st.st_size);
#endif
expand_file(fd, size - st.st_size);
} else if (size < st.st_size) {
printf("truncating %s to %d from %d\n",
fname, size, (int)st.st_size);
ftruncate(fd, size);
}
for (i=0;i<MAX_FILES;i++) {
if (ftable[i].handle == 0) break;
}
if (i == MAX_FILES) {
printf("file table full for %s\n", fname);
exit(1);
}
ftable[i].handle = handle;
ftable[i].fd = fd;
if (count++ % 100 == 0) {
printf(".");
}
}
void do_write(int handle, int size, int offset)
{
int i;
if (buf[0] == 0) memset(buf, 1, sizeof(buf));
for (i=0;i<MAX_FILES;i++) {
if (ftable[i].handle == handle) break;
}
if (i == MAX_FILES) {
#if 1
printf("(%d) do_write: handle %d was not open size=%d ofs=%d\n",
line_count, handle, size, offset);
#endif
return;
}
lseek(ftable[i].fd, offset, SEEK_SET);
if (write(ftable[i].fd, buf, size) != size) {
printf("write failed on handle %d (%s)\n", handle, strerror(errno));
}
}
void do_read(int handle, int size, int offset)
{
int i;
for (i=0;i<MAX_FILES;i++) {
if (ftable[i].handle == handle) break;
}
if (i == MAX_FILES) {
printf("(%d) do_read: handle %d was not open size=%d ofs=%d\n",
line_count, handle, size, offset);
return;
}
lseek(ftable[i].fd, offset, SEEK_SET);
read(ftable[i].fd, buf, size);
}
void do_close(int handle)
{
int i;
for (i=0;i<MAX_FILES;i++) {
if (ftable[i].handle == handle) break;
}
if (i == MAX_FILES) {
printf("(%d) do_close: handle %d was not open\n",
line_count, handle);
return;
}
close(ftable[i].fd);
ftable[i].handle = 0;
}
void do_mkdir(char *fname)
{
strupper(fname);
if (mkdir(fname, 0700) != 0) {
#if DEBUG
printf("mkdir %s failed (%s)\n",
fname, strerror(errno));
#endif
}
}
void do_rmdir(char *fname)
{
strupper(fname);
if (rmdir(fname) != 0) {
printf("rmdir %s failed (%s)\n",
fname, strerror(errno));
}
}
void do_rename(char *old, char *new)
{
strupper(old);
strupper(new);
if (rename(old, new) != 0) {
printf("rename %s %s failed (%s)\n",
old, new, strerror(errno));
}
}
void do_stat(char *fname, int size)
{
struct stat st;
strupper(fname);
if (stat(fname, &st) != 0) {
printf("(%d) do_stat: %s size=%d %s\n",
line_count, fname, size, strerror(errno));
return;
}
if (S_ISDIR(st.st_mode)) return;
if (st.st_size != size) {
printf("(%d) do_stat: %s wrong size %d %d\n",
line_count, fname, (int)st.st_size, size);
}
}
void do_create(char *fname, int size)
{
do_open(fname, 5000, size);
do_close(5000);
}
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