- introduced macros for enter and return from API functions

- iterators revisited

src/include/h5core/h5_core.h

@@ -3,6 +3,15 @@
 
 #define UNUSED_ARGUMENT(x) (void)x
 
+#define TRY( func )						\
+	if ((int64_t)(ptrdiff_t)(func) <= (int64_t)H5_ERR)	\
+		return H5_ERR;					\
+
+#define TRY2( func )						\
+	if ((int64_t)(ptrdiff_t)(func) <= (int64_t)H5_ERR)	\
+		goto exit;					\
+
+
 #include "h5_types.h"
 #include "h5_errno.h"
 
@@ -11,6 +20,7 @@
 #include "h5_maps.h"
 #include "h5_openclose.h"
 #include "h5_readwrite.h"
+#include "h5_syscall.h"
 
 #include "h5u_readwrite.h"
 #include "h5u_model.h"

src/include/h5core/h5_errorhandling.h

@@ -225,13 +225,15 @@ h5_set_funcname (
 	const char  * const fname
 	);
 
-static inline void
-H5_ENTER_API (
-	h5_file_t* const f,
-	const char* const fname
-	) {
-	h5_set_funcname( f, fname );
-	h5_debug (f, "%s", " "); // just print the function name
-}
+#define H5_API_ENTER {						\
+		h5_set_funcname( f, __func__ );			\
+		h5_debug (f, "%s", " ");			\
+	}							\
+
+#define H5_API_RETURN(retval)			\
+			     			\
+	goto exit;				\
+	exit:					\
+	return retval;				\
 
 #endif

src/include/h5core/h5_syscall.h

@@ -0,0 +1,23 @@
+#ifndef __H5_SYSCALL_H
+#define __H5_SYSCALL_H
+
+void*
+h5_alloc (
+	h5_file_t* const f,
+	void* ptr,
+	const size_t size
+	);
+
+void*
+h5_calloc (
+	h5_file_t* const f,
+	const size_t count,
+	const size_t size
+	);
+
+h5_err_t
+h5_free (
+	h5_file_t* const f,
+	void* ptr
+	);
+#endif

src/include/h5core/h5t_retrieve.h

@@ -54,16 +54,9 @@ h5t_init_leaf_iterator (
 	);
 
 h5_err_t
-h5t_create_leaf_iterator (
+h5t_init_boundary_face_iterator (
 	h5_file_t* f,
-	h5t_iterator_t** iter,
-	const int codim
-	);
-
-h5_err_t
-h5t_create_boundary_face_iterator (
-	h5_file_t* f,
-	h5t_iterator_t** iter,
+	h5t_iterator_t* iter,
 	const int codim
 	);