Feature mdtest dir rename #306 (#311)

* MDTest: Support for directory renaming.
* Refactored some MDTest variables from hardcoded numbers to ENUM symbols.

Author: JulianKunkel

src/aiori-DUMMY.c

@@ -156,6 +156,11 @@ static int DUMMY_stat (const char *path, struct stat *buf, aiori_mod_opt_t * opt
   return 0;
 }
 
+static int DUMMY_rename (const char *path, const char *path2, aiori_mod_opt_t * options){
+  return 0;
+}
+
+
 static int DUMMY_check_params(aiori_mod_opt_t * options){
   return 0;
 }
@@ -188,6 +193,7 @@ ior_aiori_t dummy_aiori = {
         .statfs = DUMMY_statfs,
         .mkdir = DUMMY_mkdir,
         .rmdir = DUMMY_rmdir,
+        .rename = DUMMY_rename,
         .access = DUMMY_access,
         .stat = DUMMY_stat,
         .initialize = DUMMY_init,

src/aiori-POSIX.c

@@ -133,6 +133,7 @@ ior_aiori_t posix_aiori = {
         .statfs = aiori_posix_statfs,
         .mkdir = aiori_posix_mkdir,
         .rmdir = aiori_posix_rmdir,
+        .rename = POSIX_Rename,
         .access = aiori_posix_access,
         .stat = aiori_posix_stat,
         .get_options = POSIX_options,
@@ -636,6 +637,17 @@ void POSIX_Delete(char *testFileName, aiori_mod_opt_t * param)
         }
 }
 
+int POSIX_Rename(const char * oldfile, const char * newfile, aiori_mod_opt_t * module_options){
+  if(hints->dryRun)
+    return 0;
+
+  if(rename(oldfile, newfile) != 0){
+    EWARNF("[RANK %03d]: rename() of file \"%s\" to  \"%s\" failed", rank, oldfile, newfile);
+    return -1;
+  }
+  return 0;
+}
+
 /*
  * Use POSIX stat() to return aggregate file size.
  */

src/aiori-POSIX.h

@@ -34,6 +34,7 @@ int POSIX_Mknod(char *testFileName);
 aiori_fd_t *POSIX_Open(char *testFileName, int flags, aiori_mod_opt_t * module_options);
 IOR_offset_t POSIX_GetFileSize(aiori_mod_opt_t * test, char *testFileName);
 void POSIX_Delete(char *testFileName, aiori_mod_opt_t * module_options);
+int POSIX_Rename(const char *oldfile, const char *newfile, aiori_mod_opt_t * module_options);
 void POSIX_Close(aiori_fd_t *fd, aiori_mod_opt_t * module_options);
 option_help * POSIX_options(aiori_mod_opt_t ** init_backend_options, aiori_mod_opt_t * init_values);
 void POSIX_xfer_hints(aiori_xfer_hint_t * params);

src/aiori.h

@@ -108,6 +108,7 @@ typedef struct ior_aiori {
         int (*stat) (const char *path, struct stat *buf, aiori_mod_opt_t * module_options);
         void (*initialize)(aiori_mod_opt_t * options); /* called once per program before MPI is started */
         void (*finalize)(aiori_mod_opt_t * options); /* called once per program after MPI is shutdown */
+        int (*rename) (const char *oldpath, const char *newpath, aiori_mod_opt_t * module_options);
         option_help * (*get_options)(aiori_mod_opt_t ** init_backend_options, aiori_mod_opt_t* init_values); /* initializes the backend options as well and returns the pointer to the option help structure */
         int (*check_params)(aiori_mod_opt_t *); /* check if the provided module_optionseters for the given test and the module options are correct, if they aren't print a message and exit(1) or return 1*/
         void (*sync)(aiori_mod_opt_t * ); /* synchronize every pending operation for this storage */