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tolerate multiple netconn callbacks for a single send job

This commit is contained in:
devsaurus 2017-11-12 17:41:29 +01:00
parent 7448d21afa
commit 0b998e5612
1 changed files with 9 additions and 2 deletions
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11
components/modules/net.c
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@ -61,6 +61,7 @@ typedef struct lnet_userdata {
bool connecting;
int hold;
size_t num_held;
size_t num_send;
int cb_connect_ref;
int cb_disconnect_ref;
int cb_reconnect_ref;
@ -290,8 +291,13 @@ static void lnet_netconn_callback(struct netconn *netconn, enum netconn_evt evt,
ud->client.connecting = false;
post_net_connected(ud);
} else if (len > 0) {
// data sent, trigger Lua callback
post_net_sent(ud);
// we're potentially called back from netconn several times for a single send job
// keep track of them in num_send and postpone the Lua callback until all data is sent
ud->client.num_send -= len;
if (ud->client.num_send == 0) {
// all data sent, trigger Lua callback
post_net_sent(ud);
}
}
break;
@ -608,6 +614,7 @@ int net_send( lua_State *L ) {
}
data = luaL_checklstring(L, stack++, &datalen);
if (!data || datalen == 0) return luaL_error(L, "no data to send");
ud->client.num_send = datalen;
if (lua_isfunction(L, stack) || lua_islightfunction(L, stack)) {
lua_pushvalue(L, stack++);
luaL_unref(L, LUA_REGISTRYINDEX, ud->client.cb_sent_ref);