static int timer_lua_create(lua_State *L)
{
mrp_context_t *ctx = mrp_lua_get_murphy_context();
char e[128] = "";
timer_lua_t *t;
int narg;
if (ctx == NULL)
luaL_error(L, "failed to get murphy context");
narg = lua_gettop(L);
t = (timer_lua_t *)mrp_lua_create_object(L, TIMER_LUA_CLASS, NULL, 0);
t->L = L;
t->ctx = ctx;
t->callback = LUA_NOREF;
t->data = LUA_NOREF;
switch (narg) {
case 1:
break;
case 2:
if (mrp_lua_init_members(t, L, -2, e, sizeof(e)) != 1)
return luaL_error(L, "failed to initialize timer members (%s)", e);
break;
default:
return luaL_error(L, "expecting 0 or 1 constructor arguments, "
"got %d", narg);
}
if (t->callback != LUA_NOREF && t->t == NULL) {
t->t = mrp_add_timer(t->ctx->ml, t->msecs, timer_lua_cb, t);
if (t->t == NULL) {
mrp_lua_destroy_object(L, NULL, 0, t);
return luaL_error(L, "failed to create Murphy timer");
}
}
mrp_lua_push_object(L, t);
return 1;
}
static int resource_set_lua_create(lua_State *L)
{
char e[128] = "";
resource_set_lua_t *rset;
int narg;
mrp_htbl_config_t conf;
mrp_debug("create");
narg = lua_gettop(L);
rset = (resource_set_lua_t *) mrp_lua_create_object(L,
RESOURCE_SET_LUA_CLASS, NULL, 0);
if (!rset)
return luaL_error(L, "could not create Lua object");
rset->L = L;
/* user can affect these values */
rset->zone = mrp_strdup("default");
rset->application_class = NULL;
rset->autorelease = FALSE;
rset->dont_wait = FALSE;
rset->priority = 0;
rset->committed = FALSE;
rset->initialized = FALSE;
switch (narg) {
case 2:
/* argument table */
if (mrp_lua_init_members(rset, L, -2, e, sizeof(e)) != 1)
return luaL_error(L, "failed to initialize resource members (%s)",
e);
break;
default:
return luaL_error(L, "expecting a constructor argument, "
"got %d", narg);
}
if (rset->application_class == NULL)
return luaL_error(L, "application_class is a mandatory parameter");
if (rset->priority < 0)
rset->priority = 0;
/* initial state, these cannot be set by user */
rset->available = FALSE;
rset->acquired = FALSE;
/* initialize resource map */
conf.nbucket = 0;
conf.nentry = 10;
conf.comp = mrp_string_comp;
conf.hash = mrp_string_hash;
conf.free = htbl_free_resource;
rset->resources = mrp_htbl_create(&conf);
if (!rset->resources)
goto error;
/* do the actual resource work */
if (!client) {
/* create the resource client */
client = mrp_resource_client_create("lua", NULL);
if (!client)
goto error;
}
rset->resource_set = mrp_resource_set_create(client, rset->autorelease,
rset->dont_wait, rset->priority, event_cb, rset);
if (rset->resource_set)
n_sets++;
else
goto error;
rset->initialized = TRUE;
mrp_lua_push_object(L, rset);
return 1;
error:
return luaL_error(L, "internal resource library error");
}
static int resource_set_add_resource(lua_State *L)
{
int narg;
resource_set_lua_t *rset;
resource_lua_t *resource;
const char *resource_name;
bool shared = FALSE;
bool mandatory = TRUE;
mrp_attr_t attribute_list[MAX_ATTRS], *attrs;
mrp_debug("> add_resource");
narg = lua_gettop(L);
if (narg != 2)
return luaL_error(L, "expecting one argument");
rset = resource_set_lua_check(L, 1);
if (!rset)
goto error;
/* the argument should be a table with at least "resource_name" index */
if (!lua_istable(L, -1))
return luaL_error(L, "argument error -- not a table");
lua_pushstring(L, "resource_name");
lua_gettable(L, -2);
if (!lua_isstring(L, -1))
return luaL_error(L, "'resource_name' is a mandatory field");
resource_name = lua_tostring(L, -1);
lua_pop(L, 1);
lua_pushstring(L, "mandatory");
lua_gettable(L, -2);
if (lua_isboolean(L, -1)) {
mandatory = lua_toboolean(L, -1);
}
lua_pop(L, 1);
lua_pushstring(L, "shared");
lua_gettable(L, -2);
if (lua_isboolean(L, -1)) {
shared = lua_toboolean(L, -1);
}
lua_pop(L, 1);
/* create resource object and add it to the resource table in the resource
* set object */
resource = (resource_lua_t *) mrp_lua_create_object(L, RESOURCE_LUA_CLASS,
NULL, 0);
if (!resource)
goto error;
/* mrp_lua_object_ref_value(resource, L, 0); */
resource->mandatory = mandatory;
resource->shared = shared;
resource->acquired = FALSE;
resource->available = FALSE;
resource->resource_name = mrp_strdup(resource_name);
if (!resource->resource_name)
goto error;
resource->parent = rset;
resource->L = L;
resource->real_attributes = (attribute_lua_t *) mrp_lua_create_object(L,
ATTRIBUTE_LUA_CLASS, NULL, 0);
if (!resource->real_attributes)
goto error;
/* mrp_lua_object_ref_value(resource->real_attributes, L, 0); */
resource->real_attributes->L = L;
resource->real_attributes->parent = resource;
resource->real_attributes->resource_set = rset;
resource->real_attributes->initialized = TRUE;
attrs = mrp_resource_set_read_all_attributes(rset->resource_set,
resource->resource_name, MAX_ATTRS-1, attribute_list);
if (mrp_resource_set_add_resource(rset->resource_set,
resource->resource_name, shared, attrs, mandatory) < 0)
goto error;
/* add to resource map */
mrp_debug("inserted resource %s to %p", resource->resource_name, rset);
mrp_htbl_insert(rset->resources, resource->resource_name, resource);
return 0;
error:
/* TODO: clean up the already allocated objects */
return luaL_error(L, "internal resource library error");
}