[v3] maintenance: use xcalloc instead of xmalloc where possible

Commit Message

Seija Kijin Dec. 5, 2022, 4:01 p.m. UTC

From: Seija <[e-mail]>

We can avoid having to call memset by calling xcalloc directly

Signed-off-by: Seija [e-mail]
---
    maintenance: use xcalloc instead of xmalloc where possible
    
    We can avoid having to call memset by calling xcalloc directly
    
    Signed-off-by: Seija [e-mail]

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1390%2FAtariDreams%2Fcalloc-v3
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1390/AtariDreams/calloc-v3
Pull-Request: https://github.com/git/git/pull/1390

Range-diff vs v2:

 1:  ee8a7af6435 ! 1:  b5cfec60048 maintenance: use xcalloc instead of xmalloc where possible
     @@ Commit message
      
          Signed-off-by: Seija [e-mail]
      
     + ## builtin/pack-redundant.c ##
     +@@ builtin/pack-redundant.c: static inline struct llist_item *llist_item_get(void)
     + 		new_item = free_nodes;
     + 		free_nodes = free_nodes->next;
     + 	} else {
     +-		int i = 1;
     ++		size_t i = 1;
     + 		ALLOC_ARRAY(new_item, BLKSIZE);
     + 		for (; i < BLKSIZE; i++)
     + 			llist_item_put(&new_item[i]);
     +@@ builtin/pack-redundant.c: static inline struct llist_item *llist_item_get(void)
     + 
     + static inline void llist_init(struct llist **list)
     + {
     +-	*list = xmalloc(sizeof(struct llist));
     +-	(*list)->front = (*list)->back = NULL;
     +-	(*list)->size = 0;
     ++	CALLOC_ARRAY(*list, 1);
     + }
     + 
     + static struct llist * llist_copy(struct llist *list)
     +
       ## remote.c ##
      @@ remote.c: void apply_push_cas(struct push_cas_option *cas,
       
     @@ submodule.c: struct fetch_task {
       	ret->path = name;
       	ret->name = name;
       
     +@@ submodule.c: static struct fetch_task *fetch_task_create(struct submodule_parallel_fetch *spf
     + 					    const char *path,
     + 					    const struct object_id *treeish_name)
     + {
     +-	struct fetch_task *task = xmalloc(sizeof(*task));
     +-	memset(task, 0, sizeof(*task));
     ++	struct fetch_task *task;
     ++
     ++	CALLOC_ARRAY(task, 1);
     + 
     + 	task->sub = submodule_from_path(spf->r, treeish_name, path);
     + 
     +
     + ## xdiff/xutils.c ##
     +@@ xdiff/xutils.c: void *xdl_cha_alloc(chastore_t *cha) {
     + 	void *data;
     + 
     + 	if (!(ancur = cha->ancur) || ancur->icurr == cha->nsize) {
     +-		if (!(ancur = (chanode_t *) xdl_malloc(sizeof(chanode_t) + cha->nsize))) {
     ++		if (!(ancur = (chanode_t *) xdl_calloc(1, sizeof(chanode_t) + cha->nsize))) {
     + 
     + 			return NULL;
     + 		}
     +-		ancur->icurr = 0;
     +-		ancur->next = NULL;
     + 		if (cha->tail)
     + 			cha->tail->next = ancur;
     + 		if (!cha->head)


 builtin/pack-redundant.c |  6 ++----
 remote.c                 |  4 ++--
 submodule.c              | 10 +++++-----
 xdiff/xutils.c           |  4 +---
 4 files changed, 10 insertions(+), 14 deletions(-)


base-commit: 805265fcf7a737664a8321aaf4a0587b78435184

Patch

diff --git a/builtin/pack-redundant.c b/builtin/pack-redundant.c
index ecd49ca268f..0e184bb5212 100644
--- a/builtin/pack-redundant.c
+++ b/builtin/pack-redundant.c
@@ -51,7 +51,7 @@  static inline struct llist_item *llist_item_get(void)
 		new_item = free_nodes;
 		free_nodes = free_nodes->next;
 	} else {
-		int i = 1;
+		size_t i = 1;
 		ALLOC_ARRAY(new_item, BLKSIZE);
 		for (; i < BLKSIZE; i++)
 			llist_item_put(&new_item[i]);
@@ -61,9 +61,7 @@  static inline struct llist_item *llist_item_get(void)
 
 static inline void llist_init(struct llist **list)
 {
-	*list = xmalloc(sizeof(struct llist));
-	(*list)->front = (*list)->back = NULL;
-	(*list)->size = 0;
+	CALLOC_ARRAY(*list, 1);
 }
 
 static struct llist * llist_copy(struct llist *list)
diff --git a/remote.c b/remote.c
index 60869beebe7..475a1d18af0 100644
--- a/remote.c
+++ b/remote.c
@@ -2741,9 +2741,9 @@  void apply_push_cas(struct push_cas_option *cas,
 
 struct remote_state *remote_state_new(void)
 {
-	struct remote_state *r = xmalloc(sizeof(*r));
+	struct remote_state *r;
 
-	memset(r, 0, sizeof(*r));
+	CALLOC_ARRAY(r, 1);
 
 	hashmap_init(&r->remotes_hash, remotes_hash_cmp, NULL, 0);
 	hashmap_init(&r->branches_hash, branches_hash_cmp, NULL, 0);
diff --git a/submodule.c b/submodule.c
index 8ac2fca855d..015102a83d6 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1458,14 +1458,13 @@  struct fetch_task {
  */
 static const struct submodule *get_non_gitmodules_submodule(const char *path)
 {
-	struct submodule *ret = NULL;
+	struct submodule *ret;
 	const char *name = default_name_or_path(path);
 
 	if (!name)
 		return NULL;
 
-	ret = xmalloc(sizeof(*ret));
-	memset(ret, 0, sizeof(*ret));
+	CALLOC_ARRAY(ret, 1);
 	ret->path = name;
 	ret->name = name;
 
@@ -1504,8 +1503,9 @@  static struct fetch_task *fetch_task_create(struct submodule_parallel_fetch *spf
 					    const char *path,
 					    const struct object_id *treeish_name)
 {
-	struct fetch_task *task = xmalloc(sizeof(*task));
-	memset(task, 0, sizeof(*task));
+	struct fetch_task *task;
+
+	CALLOC_ARRAY(task, 1);
 
 	task->sub = submodule_from_path(spf->r, treeish_name, path);
 
diff --git a/xdiff/xutils.c b/xdiff/xutils.c
index 9e36f24875d..c19bc441a96 100644
--- a/xdiff/xutils.c
+++ b/xdiff/xutils.c
@@ -98,12 +98,10 @@  void *xdl_cha_alloc(chastore_t *cha) {
 	void *data;
 
 	if (!(ancur = cha->ancur) || ancur->icurr == cha->nsize) {
-		if (!(ancur = (chanode_t *) xdl_malloc(sizeof(chanode_t) + cha->nsize))) {
+		if (!(ancur = (chanode_t *) xdl_calloc(1, sizeof(chanode_t) + cha->nsize))) {
 
 			return NULL;
 		}
-		ancur->icurr = 0;
-		ancur->next = NULL;
 		if (cha->tail)
 			cha->tail->next = ancur;
 		if (!cha->head)