Fixed handling of O_TRUNC on ceph file opening

xrootd · Mar 5, 2015 · 81dcefe · 81dcefe
1 parent a548543
commit 81dcefe
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/XrdCeph/XrdCephPosix.cc b/src/XrdCeph/XrdCephPosix.cc
@@ -440,6 +440,8 @@ void ceph_posix_set_logfunc(void (*logfunc) (char *, va_list argp)) {
   g_logfunc = logfunc;
 };
 
+static int ceph_posix_internal_truncate(const CephFile &file, unsigned long long size);
+
 int ceph_posix_open(XrdOucEnv* env, const char *pathname, int flags, mode_t mode) {
   logwrapper((char*)"ceph_open : fd %d associated to %s", g_nextCephFd, pathname);
   CephFileRef fr = getCephFileRef(pathname, env, flags, mode, 0);
@@ -448,6 +450,10 @@ int ceph_posix_open(XrdOucEnv* env, const char *pathname, int flags, mode_t mode
   if (flags & (O_WRONLY|O_RDWR)) {
     g_filesOpenForWrite.insert(fr.name);
   }
+  // in case of O_TRUNC, we should truncate the file
+  if (flags & O_TRUNC) {
+    ceph_posix_internal_truncate(fr, 0);
+  }
   return g_nextCephFd-1;
 }