Changeset b7fd2a0 in mainline for kernel/generic/src/mm/slab.c

Timestamp:

2018-01-13T03:10:29Z (7 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

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

Children:

a53ed3a

Parents:

36f0738

Message:

Use errno_t in all uspace and kernel code.

Change type of every variable, parameter and return value that holds an
<errno.h> constant to either errno_t (the usual case), or sys_errno_t
(some places in kernel). This is for the purpose of self-documentation,
as well as for type-checking with a bit of type definition hackery.

Although this is a massive commit, it is a simple text replacement, and thus
is very easy to verify. Simply do the following:

`
git checkout <this commit's hash>
git reset HEAD
<sup>git add .
tools/srepl '\berrno_t\b' int
git add .
tools/srepl '\bsys_errno_t\b' sysarg_t
git reset
git diff
`</sup>

While this doesn't ensure that the replacements are correct, it does ensure
that the commit doesn't do anything except those replacements. Since errno_t
is typedef'd to int in the usual case (and sys_errno_t to sysarg_t), even if
incorrect, this commit cannot change behavior.

File:

• kernel/generic/src/mm/slab.c (modified) (2 diffs)

kernel/generic/src/mm/slab.c

@@ -608 +608 @@
  */
 NO_TRACE static void _slab_cache_create(slab_cache_t *cache, const char *name,
-    size_t size, size_t align, int (*constructor)(void *obj,
+    size_t size, size_t align, errno_t (*constructor)(void *obj,
     unsigned int kmflag), size_t (*destructor)(void *obj), unsigned int flags)
 {
@@ -662 +662 @@
  */
 slab_cache_t *slab_cache_create(const char *name, size_t size, size_t align,
-    int (*constructor)(void *obj, unsigned int kmflag),
+    errno_t (*constructor)(void *obj, unsigned int kmflag),
     size_t (*destructor)(void *obj), unsigned int flags)
 {