Changeset 4687a26c in mainline for uspace/lib/c/include/err.h

Timestamp:

2010-11-02T18:29:01Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

4f35b9ff

Parents:

76e1121f (diff), 28f4adb (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge mainline changes.

File:

• uspace/lib/c/include/err.h (modified) (2 diffs)

uspace/lib/c/include/err.h

@@ -36 +36 @@
 #define LIBC_ERR_H_
 
+#include <stdio.h>
+#include <errno.h>
+
+#ifdef CONFIG_DEBUG
+#include <str_error.h>
+#endif
+
 #define errx(status, fmt, ...) { \
         printf((fmt), ##__VA_ARGS__); \
@@ -41 +48 @@
 }
 
+
+/** An actual stored error code.  */
+#define ERROR_CODE  error_check_return_value
+
+/** An error processing routines declaration.
+ *
+ * This has to be declared in the block where the error processing
+ * is desired.
+ */
+#define ERROR_DECLARE  int ERROR_CODE
+
+/** Store the value as an error code and checks if an error occurred.
+ *
+ * @param[in] value     The value to be checked. May be a function call.
+ * @return              False if the value indicates success (EOK).
+ * @return              True otherwise.
+ */
+#ifdef CONFIG_DEBUG
+
+#define ERROR_OCCURRED(value) \
+        (((ERROR_CODE = (value)) != EOK) && \
+        ({ \
+                fprintf(stderr, "libsocket error at %s:%d (%s)\n", \
+                __FILE__, __LINE__, str_error(ERROR_CODE)); \
+                1; \
+        }))
+
+#else
+
+#define ERROR_OCCURRED(value)   ((ERROR_CODE = (value)) != EOK)
+
+#endif
+
+#define ERROR_NONE(value)       !ERROR_OCCURRED((value))
+
+/** Error propagation
+ *
+ * Check if an error occurred and immediately exit the actual
+ * function returning the error code.
+ *
+ * @param[in] value     The value to be checked. May be a function call.
+ *
+ */
+
+#define ERROR_PROPAGATE(value) \
+        if (ERROR_OCCURRED(value)) \
+                return ERROR_CODE
+
 #endif