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MINOR: hlua_fcn: add Patref:set()

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Just like "set map" on the cli, the Patref:set() method (only relevant
for maps) can be used to modify an existing entry's value in the pattern
reference pointed to by the Lua Patref object. Lookup is performed on the
key. The update will target the live pattern reference version, unless
Patref:prepare() is ongoing.
This commit is contained in:
Aurelien DARRAGON 2024-11-26 11:26:27 +01:00
parent a5f74a2a2d
commit 9ee37de5cf
2 changed files with 67 additions and 0 deletions
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16
doc/lua-api/index.rst
View File

@ -3510,6 +3510,22 @@ Patref class
Affects the live pattern reference version, unless :js:func:`Patref.prepare()`
was called and is still ongoing (waiting for commit or giveup)
.. js:function:: Patref.set(ref, key, value[, force])
Only relevant for maps. Set existing entries matching key to the provided
value. In case of duplicate keys, all matching keys will be set to the new
value.
:param string key: the string used as a key
:param string value: the string used as value
:param bool force: create the entry if it doesn't exist (optional,
defaults to false)
:returns: true on success and nil on failure (followed by an error message)
.. Note::
Affects the live pattern reference version, unless :js:func:`Patref.prepare()`
was called and is still ongoing (waiting for commit or giveup)
.. _applethttp_class:
AppletHTTP class

51
src/hlua_fcn.c
View File

@ -2797,6 +2797,56 @@ int hlua_patref_del(lua_State *L)
return 1;
}
int hlua_patref_set(lua_State *L)
{
struct hlua_patref *ref;
const char *key;
const char *value;
char *errmsg = NULL;
unsigned int curr_gen;
int force = 0;
int ret;
ref = hlua_checkudata(L, 1, class_patref_ref);
BUG_ON(!ref);
key = luaL_checkstring(L, 2);
value = luaL_checkstring(L, 3);
if (lua_gettop(L) == 4)
force = lua_tointeger(L, 4);
HA_RWLOCK_WRLOCK(PATREF_LOCK, &ref->ptr->lock);
if ((ref->flags & HLUA_PATREF_FL_GEN) &&
pat_ref_may_commit(ref->ptr, ref->curr_gen))
curr_gen = ref->curr_gen;
else
curr_gen = ref->ptr->curr_gen;
if (force) {
struct pat_ref_elt *elt;
elt = pat_ref_gen_find_elt(ref->ptr, curr_gen, key);
if (elt)
ret = pat_ref_set_elt_duplicate(ref->ptr, elt, value, &errmsg);
else
ret = !!pat_ref_load(ref->ptr, curr_gen, key, value, -1, &errmsg);
}
else
ret = pat_ref_gen_set(ref->ptr, curr_gen, key, value, &errmsg);
HA_RWLOCK_WRUNLOCK(PATREF_LOCK, &ref->ptr->lock);
if (!ret) {
ret = hlua_error(L, errmsg);
ha_free(&errmsg);
return ret;
}
lua_pushboolean(L, 1);
return 1;
}
void hlua_fcn_new_patref(lua_State *L, struct pat_ref *ref)
{
struct hlua_patref *_ref;
@ -2830,6 +2880,7 @@ void hlua_fcn_new_patref(lua_State *L, struct pat_ref *ref)
hlua_class_function(L, "purge", hlua_patref_purge);
hlua_class_function(L, "add", hlua_patref_add);
hlua_class_function(L, "del", hlua_patref_del);
hlua_class_function(L, "set", hlua_patref_set);
}
int hlua_patref_gc(lua_State *L)