gmio_core: make error functions internal and inline

src/gmio_core/error.h

@@ -50,14 +50,4 @@ enum gmio_error
 
 typedef enum gmio_error gmio_error_t;
 
-GMIO_C_LINKAGE_BEGIN
-
-/*! Returns true if \p code == GMIO_NO_ERROR */
-GMIO_LIB_EXPORT gmio_bool_t gmio_no_error(int code);
-
-/*! Returns true if \p code != GMIO_NO_ERROR */
-GMIO_LIB_EXPORT gmio_bool_t gmio_error(int code);
-
-GMIO_C_LINKAGE_END
-
 #endif /* GMIO_ERROR_H */

src/gmio_core/internal/helper_error.h

@@ -13,14 +13,22 @@
 ** "http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html".
 ****************************************************************************/
 
-#include "error.h"
+/* WARNING :
+ *     this header has no multi-inclusion guard. It must be included only once
+ *     in the translation unit of use. The reason is that all functions
+ *     defined here are meant to be inlined for performance purpose
+ */
 
-gmio_bool_t gmio_no_error(int code)
+#include "../error.h"
+
+/*! Returns true if <tt>code == GMIO_NO_ERROR</tt> */
+GMIO_INLINE gmio_bool_t gmio_no_error(int code)
 {
     return code == GMIO_NO_ERROR;
 }
 
-gmio_bool_t gmio_error(int code)
+/*! Returns true if <tt>code != GMIO_NO_ERROR</tt> */
+GMIO_INLINE gmio_bool_t gmio_error(int code)
 {
     return code != GMIO_NO_ERROR;
 }

src/gmio_stl/internal/stl_rw_common.c

@@ -16,6 +16,7 @@
 #include "stl_rw_common.h"
 
 #include "../../gmio_core/error.h"
+#include "../../gmio_core/internal/helper_error.h"
 #include "../stl_error.h"
 
 gmio_bool_t gmio_check_transfer(int *error, const gmio_transfer_t* trsf)

src/gmio_stl/stla_write.c

@@ -21,6 +21,7 @@
 #include "stl_error.h"
 
 #include "../gmio_core/error.h"
+#include "../gmio_core/internal/helper_error.h"
 #include "../gmio_core/internal/helper_stream.h"
 #include "../gmio_core/internal/helper_transfer.h"
 #include "../gmio_core/internal/min_max.h"

src/gmio_stl/stlb_read.c

@@ -26,9 +26,10 @@
 #include "../gmio_core/error.h"
 #include "../gmio_core/internal/byte_swap.h"
 #include "../gmio_core/internal/convert.h"
-#include "../gmio_core/internal/safe_cast.h"
+#include "../gmio_core/internal/helper_error.h"
 #include "../gmio_core/internal/helper_stream.h"
 #include "../gmio_core/internal/helper_transfer.h"
+#include "../gmio_core/internal/safe_cast.h"
 
 #include <string.h>
 

src/gmio_stl/stlb_write.c

@@ -25,9 +25,10 @@
 #include "../gmio_core/error.h"
 #include "../gmio_core/internal/byte_codec.h"
 #include "../gmio_core/internal/min_max.h"
-#include "../gmio_core/internal/safe_cast.h"
+#include "../gmio_core/internal/helper_error.h"
 #include "../gmio_core/internal/helper_stream.h"
 #include "../gmio_core/internal/helper_transfer.h"
+#include "../gmio_core/internal/safe_cast.h"
 
 #include <string.h>