[dpdk-dev] [PATCH] mem: more const qualifiers in malloc API
Thomas Monjalon
thomas.monjalon at 6wind.com
Fri Jul 26 16:06:40 CEST 2013
Some functions don't modify their parameter which should be marked as const.
Signed-off-by: Thomas Monjalon <thomas.monjalon at 6wind.com>
---
lib/librte_malloc/malloc_elem.h | 6 +++---
lib/librte_malloc/malloc_heap.c | 2 +-
lib/librte_malloc/malloc_heap.h | 2 +-
lib/librte_malloc/rte_malloc.c | 4 ++--
lib/librte_malloc/rte_malloc.h | 2 +-
5 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/lib/librte_malloc/malloc_elem.h b/lib/librte_malloc/malloc_elem.h
index 8a75e0c..fadf0a5 100644
--- a/lib/librte_malloc/malloc_elem.h
+++ b/lib/librte_malloc/malloc_elem.h
@@ -62,7 +62,7 @@ static const unsigned MALLOC_ELEM_TRAILER_LEN = 0;
/* dummy function - just check if pointer is non-null */
static inline int
-malloc_elem_cookies_ok(struct malloc_elem *elem){ return elem != NULL; }
+malloc_elem_cookies_ok(const struct malloc_elem *elem){ return elem != NULL; }
/* dummy function - no header if malloc_debug is not enabled */
static inline void
@@ -100,7 +100,7 @@ set_trailer(struct malloc_elem *elem)
/* check that the header and trailer cookies are set correctly */
static inline int
-malloc_elem_cookies_ok(struct malloc_elem *elem)
+malloc_elem_cookies_ok(const struct malloc_elem *elem)
{
return (elem != NULL &&
MALLOC_ELEM_HEADER(elem) == MALLOC_HEADER_COOKIE &&
@@ -117,7 +117,7 @@ static const unsigned MALLOC_ELEM_HEADER_LEN = sizeof(struct malloc_elem);
* the actual malloc_elem header for that block.
*/
static inline struct malloc_elem *
-malloc_elem_from_data(void *data)
+malloc_elem_from_data(const void *data)
{
if (data == NULL)
return NULL;
diff --git a/lib/librte_malloc/malloc_heap.c b/lib/librte_malloc/malloc_heap.c
index b6d83a4..54b6b0c 100644
--- a/lib/librte_malloc/malloc_heap.c
+++ b/lib/librte_malloc/malloc_heap.c
@@ -201,7 +201,7 @@ malloc_heap_alloc(struct malloc_heap *heap,
* Function to retrieve data for heap on given socket
*/
int
-malloc_heap_get_stats(struct malloc_heap *heap,
+malloc_heap_get_stats(const struct malloc_heap *heap,
struct rte_malloc_socket_stats *socket_stats)
{
if (!heap->initialised)
diff --git a/lib/librte_malloc/malloc_heap.h b/lib/librte_malloc/malloc_heap.h
index e4a5063..e3eb906 100644
--- a/lib/librte_malloc/malloc_heap.h
+++ b/lib/librte_malloc/malloc_heap.h
@@ -53,7 +53,7 @@ malloc_heap_alloc(struct malloc_heap *heap, const char *type,
size_t size, unsigned align);
int
-malloc_heap_get_stats(struct malloc_heap *heap,
+malloc_heap_get_stats(const struct malloc_heap *heap,
struct rte_malloc_socket_stats *socket_stats);
int
diff --git a/lib/librte_malloc/rte_malloc.c b/lib/librte_malloc/rte_malloc.c
index 03db51f..e16ba9c 100644
--- a/lib/librte_malloc/rte_malloc.c
+++ b/lib/librte_malloc/rte_malloc.c
@@ -169,9 +169,9 @@ rte_realloc(void *ptr, size_t size, unsigned align)
}
int
-rte_malloc_validate(void *ptr, size_t *size)
+rte_malloc_validate(const void *ptr, size_t *size)
{
- struct malloc_elem *elem = malloc_elem_from_data(ptr);
+ const struct malloc_elem *elem = malloc_elem_from_data(ptr);
if (!malloc_elem_cookies_ok(elem))
return -1;
if (size != NULL)
diff --git a/lib/librte_malloc/rte_malloc.h b/lib/librte_malloc/rte_malloc.h
index 64ffaf0..acf2ae0 100644
--- a/lib/librte_malloc/rte_malloc.h
+++ b/lib/librte_malloc/rte_malloc.h
@@ -273,7 +273,7 @@ rte_free(void *ptr);
* 0 on success
*/
int
-rte_malloc_validate(void *ptr, size_t *size);
+rte_malloc_validate(const void *ptr, size_t *size);
/**
* Get heap statistics for the specified heap.
--
1.7.10.4
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