[svn-r7256] Purpose: gradual checkin for error api

Platforms tested: RH 8(simple checkin)

1 files changed, 159 insertions, 118 deletions

diff --git a/src/H5Eprivate.h b/src/H5Eprivate.h
index d4ce7e5..5d58fe1 100644
--- a/src/H5Eprivate.h
+++ b/src/H5Eprivate.h
@@ -44,7 +44,7 @@ typedef struct H5E_msg_t {
 /* Printing information */
 typedef struct H5E_print_t {
     FILE        *stream;
-    H5E_cls_t   *cls;
+    H5E_cls_t   cls;
 } H5E_print_t;
 
 /*H5_DLLVAR herr_t (*H5E_auto_g_new)(hid_t estack, void *client_data);
@@ -59,165 +59,197 @@ typedef struct H5E_t_new {
     void *auto_data;
 } H5E_t_new;
 
-#ifdef TMP
+/* HDF5 error class */
+/*#define H5E_ERR_CLS		(H5OPEN H5E_ERR_CLS_g)*/
+H5_DLLVAR hid_t H5E_ERR_CLS_g;
+
 /* HDF5 error class */
 #define    H5E_CLS_NAME         "HDF5"
 #define    H5E_CLS_LIB_NAME     "HDF5"
 #define    H5E_CLS_LIB_VERS     ""              /* How to find out version number? */
 
 /* HDF5 error class: major errors */
-#define    H5E_NONE_MAJOR_MSG	        "No error"
-#define    H5E_MAJ_ARGS_MSG		"Function arguments"
-#define    H5E_MAJ_RESOURCE_MSG	        "Resource unavailable"
-#define    H5E_MAJ_INTERNAL_MSG	        "Internal HDF5 error"
-#define    H5E_MAJ_FILE_MSG		"File interface"
-#define    H5E_MAJ_IO_MSG		        "Low-level I/O layer"
-#define    H5E_MAJ_FUNC_MSG		"Function entry/exit"
-#define    H5E_MAJ_ATOM_MSG		"Atom layer"
-#define    H5E_MAJ_CACHE_MSG		"Meta data cache layer"
-#define    H5E_MAJ_BTREE_MSG		"B-tree layer"
-#define    H5E_MAJ_SYM_MSG		        "Symbol table layer"
-#define    H5E_MAJ_HEAP_MSG		"Heap layer"
-#define    H5E_MAJ_OHDR_MSG		"Object header layer"
-#define    H5E_MAJ_DATATYPE_MSG	        "Datatype interface"
-#define    H5E_MAJ_DATASPACE_MSG	        "Dataspace interface"
-#define    H5E_MAJ_DATASET_MSG	        "Dataset interface"
-#define    H5E_MAJ_STORAGE_MSG	        "Data storage layer"
-#define    H5E_MAJ_PLIST_MSG		"Property list interface"
-#define    H5E_MAJ_ATTR_MSG 		"Attribute layer"
-#define    H5E_MAJ_PLINE_MSG		"Data filters layer"
-#define    H5E_MAJ_EFL_MSG 		"External file list"
-#define    H5E_MAJ_REFERENCE_MSG	        "References layer"
-#define    H5E_MAJ_VFL_MSG		        "Virtual File Layer"
-#define    H5E_MAJ_TBBT_MSG		"Threaded, Balanced, Binary Trees"
-#define    H5E_MAJ_FPHDF5_MSG	        "Flexible Parallel HDF5"
-#define    H5E_MAJ_TST_MSG		        "Ternary Search Trees"
-#define    H5E_MAJ_RS_MSG		        "Reference Counted Strings"
-#define    H5E_MAJ_ERROR_MSG		        "Error API"
+#define    H5E_NONE_MAJOR_MSG_new	        "No error"
+#define    H5E_MAJ_ARGS_MSG_new		"Function arguments"
+#define    H5E_MAJ_RESOURCE_MSG_new        "Resource unavailable"
+#define    H5E_MAJ_INTERNAL_MSG_new        "Internal HDF5 error"
+#define    H5E_MAJ_FILE_MSG_new		"File interface"
+#define    H5E_MAJ_IO_MSG_new		        "Low-level I/O layer"
+#define    H5E_MAJ_FUNC_MSG_new		"Function entry/exit"
+#define    H5E_MAJ_ATOM_MSG_new		"Atom layer"
+#define    H5E_MAJ_CACHE_MSG_new		"Meta data cache layer"
+#define    H5E_MAJ_BTREE_MSG_new		"B-tree layer"
+#define    H5E_MAJ_SYM_MSG_new		        "Symbol table layer"
+#define    H5E_MAJ_HEAP_MSG_new		"Heap layer"
+#define    H5E_MAJ_OHDR_MSG_new		"Object header layer"
+#define    H5E_MAJ_DATATYPE_MSG_new	        "Datatype interface"
+#define    H5E_MAJ_DATASPACE_MSG_new	        "Dataspace interface"
+#define    H5E_MAJ_DATASET_MSG_new	        "Dataset interface"
+#define    H5E_MAJ_STORAGE_MSG_new	        "Data storage layer"
+#define    H5E_MAJ_PLIST_MSG_new		"Property list interface"
+#define    H5E_MAJ_ATTR_MSG_new		"Attribute layer"
+#define    H5E_MAJ_PLINE_MSG_new		"Data filters layer"
+#define    H5E_MAJ_EFL_MSG_new 		"External file list"
+#define    H5E_MAJ_REFERENCE_MSG_new	        "References layer"
+#define    H5E_MAJ_VFL_MSG_new		        "Virtual File Layer"
+#define    H5E_MAJ_TBBT_MSG_new		"Threaded, Balanced, Binary Trees"
+#define    H5E_MAJ_FPHDF5_MSG_new	        "Flexible Parallel HDF5"
+#define    H5E_MAJ_TST_MSG_new		        "Ternary Search Trees"
+#define    H5E_MAJ_RS_MSG_new		        "Reference Counted Strings"
+#define    H5E_MAJ_ERROR_MSG_new		        "Error API"
 
 /* HDF5 error class: minor errors */
-#define    H5E_NONE_MINOR 	"No error"
-
     /* Argument errors */
-#define    H5E_MIN_UNINITIALIZED_MSG "Information is uninitialized"
-#define    H5E_MIN_UNSUPPORTED_MSG 	"Feature is unsupported"
-#define    H5E_MIN_BADTYPE_MSG 	"Inappropriate type"
-#define    H5E_MIN_BADRANGE_MSG 	"Out of range"
-#define    H5E_MIN_BADVALUE_MSG 	"Bad value"
+#define    H5E_NONE_MINOR_MSG_new	"No error"
+#define    H5E_MIN_UNINITIALIZED_MSG_new "Information is uninitialized"
+#define    H5E_MIN_UNSUPPORTED_MSG_new 	"Feature is unsupported"
+#define    H5E_MIN_BADTYPE_MSG_new 	"Inappropriate type"
+#define    H5E_MIN_BADRANGE_MSG_new 	"Out of range"
+#define    H5E_MIN_BADVALUE_MSG_new 	"Bad value"
 
     /* Resource errors */
-#define    H5E_MIN_NOSPACE_MSG 	"No space available for allocation"
-#define    H5E_MIN_CANTCOPY_MSG 	"Unable to copy object"
-#define    H5E_MIN_CANTFREE_MSG 	"Unable to free object"
-#define    H5E_MIN_ALREADYEXISTS_MSG "Object already exists"
-#define    H5E_MIN_CANTLOCK_MSG 	"Unable to lock object"
-#define    H5E_MIN_CANTUNLOCK_MSG 	"Unable to unlock object"
-#define    H5E_MIN_CANTGC_MSG 	"Unable to garbage collect"
+#define    H5E_MIN_NOSPACE_MSG_new 	"No space available for allocation"
+#define    H5E_MIN_CANTCOPY_MSG_new 	"Unable to copy object"
+#define    H5E_MIN_CANTFREE_MSG_new 	"Unable to free object"
+#define    H5E_MIN_ALREADYEXISTS_MSG_new "Object already exists"
+#define    H5E_MIN_CANTLOCK_MSG_new 	"Unable to lock object"
+#define    H5E_MIN_CANTUNLOCK_MSG_new 	"Unable to unlock object"
+#define    H5E_MIN_CANTGC_MSG_new 	"Unable to garbage collect"
 
     /* File accessability errors */
-#define    H5E_MIN_FILEEXISTS_MSG 	"File already exists"
-#define    H5E_MIN_FILEOPEN_MSG 	"File already open"
-#define    H5E_MIN_CANTCREATE_MSG 	"Unable to create file"
-#define    H5E_MIN_CANTOPENFILE_MSG 	"Unable to open file"
-#define    H5E_MIN_CANTCLOSEFILE_MSG 	"Unable to close file"
-#define    H5E_MIN_NOTHDF5_MSG 	"Not an HDF5 file"
-#define    H5E_MIN_BADFILE_MSG 	"Bad file ID accessed"
-#define    H5E_MIN_TRUNCATED_MSG 	"File has been truncated"
-#define    H5E_MIN_MOUNT_MSG		"File mount error"
+#define    H5E_MIN_FILEEXISTS_MSG_new 	"File already exists"
+#define    H5E_MIN_FILEOPEN_MSG_new 	"File already open"
+#define    H5E_MIN_CANTCREATE_MSG_new 	"Unable to create file"
+#define    H5E_MIN_CANTOPENFILE_MSG_new 	"Unable to open file"
+#define    H5E_MIN_CANTCLOSEFILE_MSG_new 	"Unable to close file"
+#define    H5E_MIN_NOTHDF5_MSG_new 	"Not an HDF5 file"
+#define    H5E_MIN_BADFILE_MSG_new 	"Bad file ID accessed"
+#define    H5E_MIN_TRUNCATED_MSG_new 	"File has been truncated"
+#define    H5E_MIN_MOUNT_MSG_new		"File mount error"
 
     /* Generic low-level file I/O errors */
-#define    H5E_MIN_SEEKERROR_MSG	"Seek failed"
-#define    H5E_MIN_READERROR_MSG 	"Read failed"
-#define    H5E_MIN_WRITEERROR_MSG 	"Write failed"
-#define    H5E_MIN_CLOSEERROR_MSG 	"Close failed"
-#define    H5E_MIN_OVERFLOW_MSG 	"Address overflowed"
-#define    H5E_MIN_FCNTL_MSG         "File control (fcntl) failed"
+#define    H5E_MIN_SEEKERROR_MSG_new	"Seek failed"
+#define    H5E_MIN_READERROR_MSG_new	"Read failed"
+#define    H5E_MIN_WRITEERROR_MSG_new 	"Write failed"
+#define    H5E_MIN_CLOSEERROR_MSG_new 	"Close failed"
+#define    H5E_MIN_OVERFLOW_MSG_new 	"Address overflowed"
+#define    H5E_MIN_FCNTL_MSG_new         "File control (fcntl) failed"
 
     /* Function entry/exit interface errors */
-#define    H5E_MIN_CANTINIT_MSG 	"Unable to initialize object"
-#define    H5E_MIN_ALREADYINIT_MSG 	"Object already initialized"
-#define    H5E_MIN_CANTRELEASE_MSG 	"Unable to release object"
+#define    H5E_MIN_CANTINIT_MSG_new 	"Unable to initialize object"
+#define    H5E_MIN_ALREADYINIT_MSG_new 	"Object already initialized"
+#define    H5E_MIN_CANTRELEASE_MSG_new 	"Unable to release object"
 
     /* Object atom related errors */
-#define    H5E_MIN_BADATOM_MSG 	"Unable to find atom information (already closed?)"
-#define    H5E_MIN_BADGROUP_MSG 	"Unable to find ID group information"
-#define    H5E_MIN_CANTREGISTER_MSG 	"Unable to register new atom"
-#define    H5E_MIN_CANTINC_MSG      	"Unable to increment reference count"
-#define    H5E_MIN_CANTDEC_MSG      	"Unable to decrement reference count"
-#define    H5E_MIN_NOIDS_MSG      	"Out of IDs for group"
+#define    H5E_MIN_BADATOM_MSG_new 	"Unable to find atom information (already closed?)"
+#define    H5E_MIN_BADGROUP_MSG_new 	"Unable to find ID group information"
+#define    H5E_MIN_CANTREGISTER_MSG_new 	"Unable to register new atom"
+#define    H5E_MIN_CANTINC_MSG_new      	"Unable to increment reference count"
+#define    H5E_MIN_CANTDEC_MSG_new      	"Unable to decrement reference count"
+#define    H5E_MIN_NOIDS_MSG_new      	"Out of IDs for group"
 
     /* Cache related errors */
-#define    H5E_MIN_CANTFLUSH_MSG 	"Unable to flush data from cache"
-#define    H5E_MIN_CANTLOAD_MSG 	"Unable to load meta data into cache"
-#define    H5E_MIN_PROTECT_MSG 	"Protected meta data error"
-#define    H5E_MIN_NOTCACHED_MSG 	"Meta data not currently cached"
+#define    H5E_MIN_CANTFLUSH_MSG_new 	"Unable to flush data from cache"
+#define    H5E_MIN_CANTLOAD_MSG_new 	"Unable to load meta data into cache"
+#define    H5E_MIN_PROTECT_MSG_new 	"Protected meta data error"
+#define    H5E_MIN_NOTCACHED_MSG_new 	"Meta data not currently cached"
 
     /* B-tree related errors */
-#define    H5E_MIN_NOTFOUND_MSG 	"Object not found"
-#define    H5E_MIN_EXISTS_MSG 	"Object already exists"
-#define    H5E_MIN_CANTENCODE_MSG 	"Unable to encode value"
-#define    H5E_MIN_CANTDECODE_MSG 	"Unable to decode value"
-#define    H5E_MIN_CANTSPLIT_MSG 	"Unable to split node"
-#define    H5E_MIN_CANTINSERT_MSG 	"Unable to insert object"
-#define    H5E_MIN_CANTLIST_MSG 	"Unable to list node"
+#define    H5E_MIN_NOTFOUND_MSG_new 	"Object not found"
+#define    H5E_MIN_EXISTS_MSG_new 	"Object already exists"
+#define    H5E_MIN_CANTENCODE_MSG_new 	"Unable to encode value"
+#define    H5E_MIN_CANTDECODE_MSG_new 	"Unable to decode value"
+#define    H5E_MIN_CANTSPLIT_MSG_new 	"Unable to split node"
+#define    H5E_MIN_CANTINSERT_MSG_new 	"Unable to insert object"
+#define    H5E_MIN_CANTLIST_MSG_new 	"Unable to list node"
 
     /* Object header related errors */
-#define    H5E_MIN_LINKCOUNT_MSG 	"Bad object header link count"
-#define    H5E_MIN_VERSION_MSG 	"Wrong version number"
-#define    H5E_MIN_ALIGNMENT_MSG 	"Alignment error"
-#define    H5E_MIN_BADMESG_MSG 	"Unrecognized message"
-#define    H5E_MIN_CANTDELETE_MSG 	"Can't delete message"
+#define    H5E_MIN_LINKCOUNT_MSG_new 	"Bad object header link count"
+#define    H5E_MIN_VERSION_MSG_new 	"Wrong version number"
+#define    H5E_MIN_ALIGNMENT_MSG_new 	"Alignment error"
+#define    H5E_MIN_BADMESG_MSG_new 	"Unrecognized message"
+#define    H5E_MIN_CANTDELETE_MSG_new 	"Can't delete message"
 
     /* Group related errors */
-#define    H5E_MIN_CANTOPENOBJ_MSG 	"Can't open object"
-#define    H5E_MIN_COMPLEN_MSG 	"Name component is too long"
-#define    H5E_MIN_CWG_MSG 		"Problem with current working group"
-#define    H5E_MIN_LINK_MSG 		"Link count failure"
-#define    H5E_MIN_SLINK_MSG		"Symbolic link error"
+#define    H5E_MIN_CANTOPENOBJ_MSG_new	"Can't open object"
+#define    H5E_MIN_COMPLEN_MSG_new 	"Name component is too long"
+#define    H5E_MIN_CWG_MSG_new 		"Problem with current working group"
+#define    H5E_MIN_LINK_MSG_new 		"Link count failure"
+#define    H5E_MIN_SLINK_MSG_new		"Symbolic link error"
 
     /* Datatype conversion errors */
-#define    H5E_MIN_CANTCONVERT_MSG	"Can't convert datatypes"
-#define    H5E_MIN_BADSIZE_MSG	"Bad size for object"
+#define    H5E_MIN_CANTCONVERT_MSG_new	"Can't convert datatypes"
+#define    H5E_MIN_BADSIZE_MSG_new	"Bad size for object"
 
     /* Dataspace errors */
-#define    H5E_MIN_CANTCLIP_MSG	"Can't clip hyperslab region"
-#define    H5E_MIN_CANTCOUNT_MSG	"Can't count elements"
-#define    H5E_MIN_CANTSELECT_MSG    "Can't select hyperslab"
-#define    H5E_MIN_CANTNEXT_MSG      "Can't move to next iterator location"
-#define    H5E_MIN_BADSELECT_MSG     "Invalid selection"
-#define    H5E_MIN_CANTCOMPARE_MSG   "Can't compare objects"
+#define    H5E_MIN_CANTCLIP_MSG_new	"Can't clip hyperslab region"
+#define    H5E_MIN_CANTCOUNT_MSG_new	"Can't count elements"
+#define    H5E_MIN_CANTSELECT_MSG_new    "Can't select hyperslab"
+#define    H5E_MIN_CANTNEXT_MSG_new      "Can't move to next iterator location"
+#define    H5E_MIN_BADSELECT_MSG_new     "Invalid selection"
+#define    H5E_MIN_CANTCOMPARE_MSG_new   "Can't compare objects"
 
     /* Property list errors */
-#define    H5E_MIN_CANTGET_MSG	"Can't get value"
-#define    H5E_MIN_CANTSET_MSG	"Can't set value"
-#define    H5E_MIN_DUPCLASS_MSG	"Duplicate class name in parent class"
+#define    H5E_MIN_CANTGET_MSG_new	"Can't get value"
+#define    H5E_MIN_CANTSET_MSG_new	"Can't set value"
+#define    H5E_MIN_DUPCLASS_MSG_new	"Duplicate class name in parent class"
 
     /* Parallel MPI errors */
-#define    H5E_MIN_MPI_MSG		"Some MPI function failed"
-#define    H5E_MIN_MPIERRSTR_MSG     "MPI Error String"
+#define    H5E_MIN_MPI_MSG_new		"Some MPI function failed"
+#define    H5E_MIN_MPIERRSTR_MSG_new     "MPI Error String"
 
     /* FPHDF5 errors */
-#define    H5E_MIN_CANTMAKETREE_MSG  "Can't create a binary tree node"
-#define    H5E_MIN_CANTRECV_MSG      "Can't receive messages from processes"
-#define    H5E_MIN_CANTSENDMDATA_MSG "Can't send metadata message"
-#define    H5E_MIN_CANTCHANGE_MSG    "Can't register change with server"
-#define    H5E_MIN_CANTALLOC_MSG     "Can't allocate from file"
+#define    H5E_MIN_CANTMAKETREE_MSG_new "Can't create a binary tree node"
+#define    H5E_MIN_CANTRECV_MSG_new      "Can't receive messages from processes"
+#define    H5E_MIN_CANTSENDMDATA_MSG_new "Can't send metadata message"
+#define    H5E_MIN_CANTCHANGE_MSG_new   "Can't register change with server"
+#define    H5E_MIN_CANTALLOC_MSG_new     "Can't allocate from file"
 
     /* I/O pipeline errors */
-#define    H5E_MIN_NOFILTER_MSG      "Requested filter is not available"
-#define    H5E_MIN_CALLBACK_MSG      "Callback failed"
-#define    H5E_MIN_CANAPPLY_MSG      "Error from filter \"can apply\" callback"
-#define    H5E_MIN_SETLOCAL_MSG      "Error from filter \"set local\" callback"
-#endif /* TMP */
+#define    H5E_MIN_NOFILTER_MSG_new      "Requested filter is not available"
+#define    H5E_MIN_CALLBACK_MSG_new      "Callback failed"
+#define    H5E_MIN_CANAPPLY_MSG_new      "Error from filter \"can apply\" callback"
+#define    H5E_MIN_SETLOCAL_MSG_new      "Error from filter \"set local\" callback"
 #endif /* NEW_ERR */
 
+#ifndef NEW_ERR
+#ifdef H5_HAVE_THREADSAFE
+/*
+ * The per-thread error stack. pthread_once() initializes a special
+ * key that will be used by all threads to create a stack specific to
+ * each thread individually. The association of stacks to threads will
+ * be handled by the pthread library.
+ *
+ * In order for this macro to work, H5E_get_my_stack() must be preceeded
+ * by "H5E_t *estack =".
+ */
+#define H5E_get_my_stack_new()  H5E_get_stack_new()
+#else /* H5_HAVE_THREADSAFE */
+/*
+ * The current error stack.  Eventually we'll have some sort of global table 
+ * so each thread has it's own stack.  The stacks will be created on demand 
+ * when the thread first calls H5E_push().  */
+H5E_t_new		H5E_stack_g_new[1];
+#define H5E_get_my_stack_new() (H5E_stack_g_new+0)
+#endif /* H5_HAVE_THREADSAFE */
+#endif /* NEW_ERR */
+
+
 /*
  * HERROR macro, used to facilitate error reporting between a FUNC_ENTER()
  * and a FUNC_LEAVE() within a function body.  The arguments are the major
  * error number, the minor error number, and a description of the error.
  */
 #ifdef NEW_ERR
-#define HERROR(maj, min, str) H5E_push_new(H5E_DEFAULT, __FILE__, FUNC, __LINE__, maj, min, str)
+#define HERROR(maj_id, min_id, str) {                                         \
+   H5E_msg_t    *maj_ptr, *min_ptr;                                           \
+   hid_t        cls_id;                                                       \
+   maj_ptr = H5I_object_verify(maj_id, H5I_ERROR_MSG);                        \
+   min_ptr = H5I_object_verify(min_id, H5I_ERROR_MSG);                        \
+   /*check error: cls of maj and min should be same*/                         \
+   cls_id = H5I_register(H5I_ERROR_CLASS, maj_ptr->cls);                      \
+   H5E_push_new(H5E_DEFAULT, __FILE__, FUNC, __LINE__, cls_id, maj_id, min_id, str); \
+}
 #else
 #define HERROR(maj, min, str) H5E_push(maj, min, FUNC, __FILE__, __LINE__, str)
 #endif /* NEW_ERR */
@@ -226,10 +258,18 @@ typedef struct H5E_t_new {
  * HCOMMON_ERROR macro, used by HDONE_ERROR and HGOTO_ERROR
  * (Shouldn't need to be used outside this header file)
  */
+#ifdef NEW_ERR
+#define HCOMMON_ERROR(maj, min, str)  				              \
+   H5E_t_new *estack = H5E_get_my_stack_new();                                \
+   HERROR (maj, min, str);						      \
+   if (H5_IS_API(FUNC) && estack->auto_data)  				      \
+       (void)((estack->func)(H5E_DEFAULT, estack->auto_data))
+#else
 #define HCOMMON_ERROR(maj, min, str)  				              \
    HERROR (maj, min, str);						      \
    if (H5_IS_API(FUNC) && H5E_auto_g)  					      \
        (void)((H5E_auto_g)(H5E_auto_data_g))
+#endif /* NEW_ERR */
 
 /*
  * HDONE_ERROR macro, used to facilitate error reporting between a
@@ -297,13 +337,14 @@ H5_DLL herr_t H5E_walk (H5E_direction_t dir, H5E_walk_t func,
 
 #ifndef NEW_ERR
 /* New error API */
-H5_DLL hid_t  H5E_register_class(const char *cls_name, const char *lib_name, 
+H5E_t_new *    H5E_get_stack_new(void);
+H5_DLL hid_t   H5E_register_class(const char *cls_name, const char *lib_name, 
                                 const char *version);
 H5_DLL herr_t  H5E_unregister_class(H5E_cls_t *cls);
-H5_DLL herr_t H5E_close_msg(H5E_msg_t *err);
-H5_DLL hid_t  H5E_create_msg(hid_t cls_id, H5E_type_t msg_type, const char *msg);
-H5_DLL hid_t  H5E_get_current_stack(void);
-H5_DLL herr_t H5E_close_stack(H5E_t_new *err_stack);
+H5_DLL herr_t  H5E_close_msg(H5E_msg_t *err);
+H5_DLL hid_t   H5E_create_msg(hid_t cls_id, H5E_type_t msg_type, const char *msg);
+H5_DLL hid_t   H5E_get_current_stack(void);
+H5_DLL herr_t  H5E_close_stack(H5E_t_new *err_stack);
 H5_DLL ssize_t H5E_get_class_name(H5E_cls_t *cls, char *name, size_t size);
 H5_DLL ssize_t H5E_get_msg(H5E_msg_t *msg_ptr, H5E_type_t *type, char *msg, size_t size);
 H5_DLL int     H5E_get_num(H5E_t_new *err_stack);