+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ */
+
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <libgen.h>
#include <errno.h>
+#include <sys/wait.h>
+const char *progname;
const char usage_fmt[] = "Usage: %s <mountpoint>\n";
#define INAME_LEN (PATH_MAX + 1)
-const char *progname;
#define CHECK_IT(exp, pstr) \
if (!(exp)) { \
CHECK_IT(iname, "malloc() failed");
fd = open(fname, O_CREAT, 0644);
- CHECK_IT(fd >= 0 || errno == EISDIR, "open(fname) failed");
+ if (fd < 0 && errno != EISDIR) {
+ fprintf(stderr, "%s:%d: open(%s) failed: %s\n", __FILE__,
+ __LINE__, fname, strerror(errno));
+ exit(1);
+ }
if (fd >= 0)
close(fd);
rc = stat(fname, &buf);
- CHECK_IT(rc == 0, "stat(fname) failed");
+ if (rc != 0) {
+ fprintf(stderr, "%s:%d: stat(%s) failed: %s\n", __FILE__,
+ __LINE__, fname, strerror(errno));
+ exit(1);
+ }
rc = snprintf(iname, INAME_LEN,
- "%s/__iopen__/%lu", mtpt, buf.st_ino);
+ "%s/__iopen__/%lu", mtpt, (unsigned long)buf.st_ino);
CHECK_SNPRINTF(rc, INAME_LEN);
return iname;
int main(int argc, char *argv[])
{
char *fname, *mtpt, *pname;
- int rc, fd;
char *fname_iname, *dir;
char *dir_iname = NULL, *foo = NULL, *bar = NULL;
-
- int i,j;
- int thread=0;
+ int rc, fd, i, thread = 0;
+ int pidlist[10];
pname = strdup(argv[0]);
progname = basename(argv[0]);
-
+
if (argc != 2) {
fprintf(stderr, usage_fmt, progname);
return 1;
}
- for(i=1;i<=10;i++) {
- rc=fork();
+ for (i = 1; i <= 10; i++) {
+ rc = fork();
if (rc < 0) {
- fprintf(stderr, "error: %s: #%ld - %s\n", argv[0], i,
+ fprintf(stderr, "error: %s: #%d - %s\n", argv[0], i,
strerror(rc = errno));
break;
} else if (rc == 0) {
thread = i;
break;
- } else {
- printf("%s: thread #%ld (PID %d) started\n",
- argv[0], i, rc);
}
+ printf("%s: thread #%d (PID %d) started\n", argv[0], i, rc);
+ pidlist[i-1] = rc;
rc = 0;
}
- if (thread!=0){
- j=1000;
-
+ if (thread != 0) {
mtpt = argv[1];
fname = malloc(INAME_LEN);
CHECK_IT(fname, "malloc() failed");
CHECK_SNPRINTF(rc, INAME_LEN);
rc = mkdir(fname, 0644);
- CHECK_IT(rc == 0, "mkdir(fname) failed");
+ if (rc != 0) {
+ fprintf(stderr, "%s:%d: mkdir(%s) failed: %s\n",
+ __FILE__, __LINE__, fname, strerror(errno));
+ exit(1);
+ }
fname_iname = get_iname(fname, mtpt);
dir = malloc(INAME_LEN);
CHECK_IT(dir, "malloc() failed");
- rc = snprintf(dir, INAME_LEN,
- "%s/dir", fname_iname);
+ rc = snprintf(dir, INAME_LEN, "%s/dir", fname_iname);
CHECK_SNPRINTF(rc, INAME_LEN);
foo = malloc(INAME_LEN);
bar = malloc(INAME_LEN);
CHECK_IT(bar, "malloc() failed");
- do {
+ for (i = 0; i < 1000; i++) {
rc = mkdir(dir, 0644);
- CHECK_IT(rc == 0, "mkdir() failed");
+ if (rc != 0) {
+ fprintf(stderr, "%s:%d: mkdir(%s) failed: %s\n",
+ __FILE__, __LINE__, dir,
+ strerror(errno));
+ exit(1);
+ }
dir_iname = get_iname(dir, mtpt);
-
- rc = snprintf(foo, INAME_LEN,
- "%s/bar", dir_iname);
+
+ rc = snprintf(foo, INAME_LEN, "%s/bar", dir_iname);
CHECK_SNPRINTF(rc, INAME_LEN);
-
- rc = snprintf(bar, INAME_LEN,
- "%s/bar", dir_iname);
+
+ rc = snprintf(bar, INAME_LEN, "%s/bar", dir_iname);
CHECK_SNPRINTF(rc, INAME_LEN);
fd = open(foo, O_CREAT, 0644);
- CHECK_IT(fd >= 0, "open(foo) failed");
- close(fd);
+ if (fd < 0) {
+ fprintf(stderr, "%s:%d: open(%s) failed: %s\n",
+ __FILE__, __LINE__, foo,
+ strerror(errno));
+ exit(1);
+ }
+ rc = close(fd);
+ if (rc != 0) {
+ fprintf(stderr, "%s:%d: close() failed: %s\n",
+ __FILE__, __LINE__, strerror(errno));
+ exit(1);
+ }
rc = rename(foo, bar);
- CHECK_IT(rc == 0, "rename(foo, bar) failed");
+ if (rc != 0) {
+ fprintf(stderr, "%s:%d: rename(%s, %s) failed: "
+ "%s\n", __FILE__, __LINE__, foo, bar,
+ strerror(errno));
+ exit(1);
+ }
rc = unlink(bar);
- CHECK_IT(rc == 0, "unlink(bar) failed");
+ if (rc != 0) {
+ fprintf(stderr, "%s:%d: unlink(%s) failed: "
+ "%s\n", __FILE__, __LINE__, bar,
+ strerror(errno));
+ exit(1);
+ }
rc = rmdir(dir);
- CHECK_IT(rc == 0, "rmdir(dir) failed");
+ if (rc != 0) {
+ fprintf(stderr, "%s:%d: rmdir(%s) failed: %s\n",
+ __FILE__, __LINE__, dir,
+ strerror(errno));
+ exit(1);
+ }
free(dir_iname);
- j--;
- } while (j>=1);
+ }
+ } else {
+ for ( i=0; i<10; i++)
+ waitpid(pidlist[i], NULL, 0);
}
return 0;
}