[svn-r11195] Purpose:

Feature.

Description:
Added HSYS_ERROR macro to retrieve and push system error message to
the error stack.
Added the related H5E_SYSERRSTR error code.

This allows system error messages be shown to users too.  Thus
give a better explanation of what the errors are.

Platforms tested:
h5committested.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/H5Einit.h b/src/H5Einit.h
index 5f68721..0378cb6 100644
--- a/src/H5Einit.h
+++ b/src/H5Einit.h
@@ -333,6 +333,13 @@ if((msg = H5E_create_msg(cls, H5E_MINOR, "Can't allocate from file"))==NULL)
 if((H5E_CANTALLOC_g = H5I_register(H5I_ERROR_MSG, msg))<0)
     HGOTO_ERROR(H5E_ERROR, H5E_CANTREGISTER, FAIL, "can't register error message")
 
+/* System level errors */
+assert(H5E_SYSERRSTR_g==(-1));
+if((msg = H5E_create_msg(cls, H5E_MINOR, "System error message"))==NULL)
+    HGOTO_ERROR(H5E_ERROR, H5E_CANTINIT, FAIL, "error message initialization failed")
+if((H5E_SYSERRSTR_g = H5I_register(H5I_ERROR_MSG, msg))<0)
+    HGOTO_ERROR(H5E_ERROR, H5E_CANTREGISTER, FAIL, "can't register error message")
+
 /* I/O pipeline errors */
 assert(H5E_NOFILTER_g==(-1));
 if((msg = H5E_create_msg(cls, H5E_MINOR, "Requested filter is not available"))==NULL)