Changeset 132ab5d1 in mainline for abi/include/_bits/errno.h

Timestamp:

2018-01-30T03:20:45Z (7 years ago)

Author:

Jenda <jenda.jzqk73@…>

Branches:

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

Children:

5a6cc679

Parents:

8bfb163 (diff), 6a5d05b (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 commit '6a5d05bd2551e64111bea4f9332dd7448c26ce84' into forwardport

Separate return value from error code in gen_irq_code*().

File:

• abi/include/_bits/errno.h (moved) (moved from uspace/lib/drv/generic/private/remote_char_dev.h ) (3 diffs)

abi/include/_bits/errno.h

@@ -1 +1 @@
 /*
- * Copyright (c) 2010 Lenka Trochtova
+ * Copyright (c) 2017 CZ.NIC, z.s.p.o.
  * All rights reserved.
  *
@@ -27 +27 @@
  */
 
-/** @addtogroup libdrv
+/* Authors:
+ *      Jiří Zárevúcky (jzr) <zarevucky.jiri@gmail.com>
+ */
+
+/** @addtogroup bits
  * @{
  */
@@ -33 +37 @@
  */
 
-#ifndef LIBDRV_REMOTE_CHAR_DEV_H_
-#define LIBDRV_REMOTE_CHAR_DEV_H_
+#ifndef _BITS_ERRNO_H_
+#define _BITS_ERRNO_H_
 
-extern remote_iface_t remote_char_dev_iface;
+#ifdef __OPAQUE_ERRNO__
+#include <_bits/opaque_handle.h>
+
+opaque_handle(errno_t);
+typedef errno_t sys_errno_t;
+#define __errno_t(val) ((errno_t) val)
+
+#else
+
+#include <_bits/native.h>
+
+/**
+ * The type of <errno.h> constants. Normally, this is an alias for `int`,
+ * but we support an alternative definition that allows us to verify
+ * integrity of error handling without using external tools.
+ */
+typedef int errno_t;
+
+/**
+ * Same as `errno_t`, except represented as `sysarg_t`. Used in kernel in
+ * places where error number is always passed, but the type must be `sysarg_t`.
+ */
+typedef sysarg_t sys_errno_t;
+
+/**
+ * A C++-style "cast" to `errno_t`.
+ * Used in <abi/errno.h> to define error constants. Normally, it doesn't do
+ * anything at all.
+ */
+#define __errno_t(val) val
 
 #endif
 
-/**
- * @}
- */
+#endif