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json_object: speed up creation of objects

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Instead of using calloc(), call malloc() and initialize the relevant
fields individually.

speedup for 32-bit: ~15%
speedup for 64-bit: ~ 5%
This commit is contained in:
Ramiro Polla
2018-12-08 22:14:41 +01:00
parent c9a0ac5886
commit 906188e1cf
1 changed files with 5 additions and 2 deletions
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7
json_object.c
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@@ -240,11 +240,14 @@ static struct json_object* json_object_new(enum json_type o_type)
{ {
struct json_object *jso; struct json_object *jso;
jso = (struct json_object*)calloc(sizeof(struct json_object), 1); jso = (struct json_object*)malloc(sizeof(struct json_object));
if (!jso) if (!jso)
return NULL; return NULL;
jso->o_type = o_type; jso->o_type = o_type;
jso->_ref_count = 1; jso->_ref_count = 1;
jso->_pb = NULL;
jso->_user_delete = NULL;
jso->_userdata = NULL;
#ifdef REFCOUNT_DEBUG #ifdef REFCOUNT_DEBUG
lh_table_insert(json_object_table, jso, jso); lh_table_insert(json_object_table, jso, jso);
MC_DEBUG("json_object_new_%s: %p\n", json_type_to_name(jso->o_type), jso); MC_DEBUG("json_object_new_%s: %p\n", json_type_to_name(jso->o_type), jso);
@@ -1034,7 +1037,7 @@ struct json_object* json_object_new_string(const char *s)
jso->_to_json_string = &json_object_string_to_json_string; jso->_to_json_string = &json_object_string_to_json_string;
jso->o.c_string.len = strlen(s); jso->o.c_string.len = strlen(s);
if(jso->o.c_string.len < LEN_DIRECT_STRING_DATA) { if(jso->o.c_string.len < LEN_DIRECT_STRING_DATA) {
memcpy(jso->o.c_string.str.data, s, jso->o.c_string.len); memcpy(jso->o.c_string.str.data, s, jso->o.c_string.len + 1);
} else { } else {
jso->o.c_string.str.ptr = strdup(s); jso->o.c_string.str.ptr = strdup(s);
if (!jso->o.c_string.str.ptr) if (!jso->o.c_string.str.ptr)