Subfiling VFD - tidying up and fixing a few new testing failures (#1977)

* Rename Subfiling IOC "thread_pool_count" field to "thread_pool_size"

* Add simple HDF5 example for Subfiling VFD

* Subfiling VFD - never cache app topology as it may change

* Subfiling VFD - cleanup unused funtionality and tidy up some TODOs

* Subfiling VFD - tidy up subfiling error handling in H5subfiling_common.c

* Subfiling VFD - show number of failed I/O requests on close

* Subfiling VFD - Update file cmp callback after switching to MPI I/O VFD

* Amend RELEASE.txt with info about h5fuse.sh and Subfiling limitations

* Subfiling VFD - switch to using H5_basename and H5_dirname

1 files changed, 8 insertions, 19 deletions

diff --git a/src/H5FDsubfiling/H5subfiling_common.h b/src/H5FDsubfiling/H5subfiling_common.h
index 3195c9d..6e2965f 100644
--- a/src/H5FDsubfiling/H5subfiling_common.h
+++ b/src/H5FDsubfiling/H5subfiling_common.h
@@ -23,6 +23,7 @@
 #include "H5Iprivate.h"
 
 #include "H5FDsubfiling.h"
+#include "H5FDioc.h"
 
 /*
  * Some definitions for debugging the Subfiling feature
@@ -189,25 +190,15 @@ typedef struct {
  */
 typedef struct {
     /* {Datasize, Offset, FileID} */
-    int64_t header[3];        /* The basic RPC input plus       */
-    int     tag;              /* the supplied OPCODE tag        */
-    int     source;           /* Rank of who sent the message   */
-    int     subfile_rank;     /* The IOC rank                   */
-    int64_t context_id;       /* context to be used to complete */
-    double  start_time;       /* the request, + time of receipt */
-                              /* from which we calc Time(queued) */
-    void *buffer;             /* for writes, we keep the buffer */
-                              /* around for awhile...           */
-    volatile int in_progress; /* Not used!               */
-    volatile int serialize;   /* worker thread needs to wait while true */
-    volatile int dependents;  //* If current work item has dependents */
-    int          depend_id;   /* work queue index of the dependent */
+    int64_t header[3];    /* The basic RPC input plus       */
+    int     tag;          /* the supplied OPCODE tag        */
+    int     source;       /* Rank of who sent the message   */
+    int     subfile_rank; /* The IOC rank                   */
+    int64_t context_id;   /* context to be used to complete */
+    double  start_time;   /* the request, + time of receipt */
+                          /* from which we calc Time(queued) */
 } sf_work_request_t;
 
-extern int sf_verbose_flag;
-
-extern app_layout_t *sf_app_layout;
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -225,8 +216,6 @@ H5_DLL herr_t  H5_get_num_iocs_from_config_file(FILE *config_file, int *n_io_con
 
 H5_DLL void H5_subfiling_log(int64_t sf_context_id, const char *fmt, ...);
 
-void set_verbose_flag(int subfile_rank, int new_value);
-
 #ifdef __cplusplus
 }
 #endif