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authorRaghavendra G <raghavendra@gluster.com>2009-11-18 01:16:45 +0000
committerAnand V. Avati <avati@dev.gluster.com>2009-11-18 21:14:24 -0800
commit1e401ee2a94091154d114c11b55853bda3f49e29 (patch)
tree77ca09091e5a03bf15032dd9116728d475fa200e /booster
parent9c5547193f637cb52cbb91c0409dd3580acafdcb (diff)
booster: implement truncate and truncate64.
Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 369 (Samba does not work with booster.) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=369
Diffstat (limited to 'booster')
-rw-r--r--booster/src/booster.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/booster/src/booster.c b/booster/src/booster.c
index 98f9104..43c8489 100644
--- a/booster/src/booster.c
+++ b/booster/src/booster.c
@@ -194,6 +194,9 @@ static int (*real_fcntl) (int fd, int cmd, ...);
static int (*real_chdir) (const char *path);
static int (*real_fchdir) (int fd);
static char * (*real_getcwd) (char *buf, size_t size);
+static int (*real_truncate) (const char *path, off_t length);
+static int (*real_truncate64) (const char *path, loff_t length);
+
#define RESOLVE(sym) do { \
if (!real_##sym) \
@@ -2826,6 +2829,77 @@ getcwd (char *buf, size_t size)
}
+int __REDIRECT (booster_false_truncate, (const char *path, off_t length),
+ truncate) __nonnull ((1));
+int __REDIRECT (booster_false_truncate64, (const char *path, loff_t length),
+ truncate64) __nonnull ((1));;
+
+int
+booster_false_truncate (const char *path, off_t length)
+{
+ int ret = -1;
+
+ gf_log ("booster", GF_LOG_TRACE, "truncate: path (%s) length (%"PRIu64
+ ")", path, length);
+
+ ret = glusterfs_truncate (path, length);
+ if ((ret == -1) && (errno != ENODEV)) {
+ gf_log ("booster", GF_LOG_ERROR, "truncate failed: %s",
+ strerror (errno));
+ goto out;
+ }
+
+ if (ret == 0) {
+ gf_log ("booster", GF_LOG_TRACE, "truncate succeeded");
+ goto out;
+ }
+
+ if (real_truncate != NULL)
+ ret = real_truncate (path, length);
+ else {
+ errno = ENOSYS;
+ ret = -1;
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+
+int
+booster_false_truncate64 (const char *path, loff_t length)
+{
+ int ret = -1;
+
+ gf_log ("booster", GF_LOG_TRACE, "truncate64: path (%s) length "
+ "(%"PRIu64")", path, length);
+
+ ret = glusterfs_truncate (path, length);
+ if ((ret == -1) && (errno != ENODEV)) {
+ gf_log ("booster", GF_LOG_ERROR, "truncate64 failed: %s",
+ strerror (errno));
+ goto out;
+ }
+
+ if (ret == 0) {
+ gf_log ("booster", GF_LOG_TRACE, "truncate64 succeeded");
+ goto out;
+ }
+
+ if (real_truncate64 != NULL)
+ ret = real_truncate64 (path, length);
+ else {
+ errno = ENOSYS;
+ ret = -1;
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+
void
booster_lib_init (void)
{
@@ -2907,6 +2981,8 @@ booster_lib_init (void)
RESOLVE (chdir);
RESOLVE (fchdir);
RESOLVE (getcwd);
+ RESOLVE (truncate);
+ RESOLVE (truncate64);
/* This must be called after resolving real functions
* above so that the socket based IO calls in libglusterfsclient