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Fixed Android segfault on mysterious udp reception callback.

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This commit is contained in:
genxium 2023-01-28 10:52:52 +08:00
parent 26660d75d2
commit bbf07fe518
2 changed files with 47 additions and 40 deletions
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5
frontend/assets/scripts/Map.js
View File

@ -43,9 +43,7 @@ window.onUdpMessage = (args) => {
}
cc.log(`#1 Js called back by CPP: onUdpMessage: args=${args}, typeof(args)=${typeof (args)}, argslen=${args.length}, ui8Arr=${ui8Arr}`);
if (6 == len) {
cc.log(`#2 Js called back by CPP for peer hole punching`);
} else {
cc.log(`#2 Js called back by CPP for upsync: trying to decode by WsReq...`);
const req = window.pb.protos.WsReq.decode(ui8Arr);
if (req) {
cc.log(`#2 Js called back by CPP for upsync: onUdpMessage: ${JSON.stringify(req)}`);
@ -69,7 +67,6 @@ window.onUdpMessage = (args) => {
}
}
}
}
};
cc.Class({

36
frontend/build-templates/jsb-link/frameworks/runtime-src/Classes/udp_session.cpp
View File

@ -14,30 +14,37 @@ struct PeerAddr peerAddrList[maxPeerCnt];
char SRV_IP[256];
int SRV_PORT = 0;
void _onRead(uv_udp_t* req, ssize_t nread, const uv_buf_t* buf, const struct sockaddr* addr, unsigned flags) {
void _onRead(uv_udp_t* req, ssize_t nread, uv_buf_t const* buf, struct sockaddr const* addr, unsigned flags) {
if (nread < 0) {
CCLOGERROR("Read error %s", uv_err_name(nread));
uv_close((uv_handle_t*)req, NULL);
free(buf->base);
return;
}
struct sockaddr_in* sockAddr = (struct sockaddr_in*)addr;
char ip[17] = { 0 };
uv_ip4_name(sockAddr, ip, sizeof ip);
if (NULL != addr) {
// The null check for "addr" is necessary, on Android there'd be such mysterious call to "_onRead"!
switch (addr->sa_family) {
case AF_INET: {
struct sockaddr_in const* sockAddr = (struct sockaddr_in const*)addr;
char ip[INET_ADDRSTRLEN];
memset(ip, 0, sizeof ip);
//uv_ip4_name(sockAddr, ip, 16);
uv_inet_ntop(sockAddr->sin_family, &(sockAddr->sin_addr), ip, INET_ADDRSTRLEN);
int port = ntohs(sockAddr->sin_port);
CCLOG("UDP received %d bytes from %s:%d", nread, ip, port);
break;
}
default:
break;
}
}
if (6 != nread) {
// Non-holepunching
int const gameThreadMsgSize = 256;
char* const gameThreadMsg = (char* const)malloc(gameThreadMsgSize);
memset(gameThreadMsg, 0, gameThreadMsgSize);
memcpy(gameThreadMsg, buf->base, nread);
free(buf->base);
//uv_udp_recv_stop(req);
if (6 != nread) {
// Non-holepunching
CCLOG("UDP received %d bytes from %s:%d, converted to %d bytes for the JS callback", nread, ip, port, strlen(gameThreadMsg));
cocos2d::Application::getInstance()->getScheduler()->performFunctionInCocosThread([=]() {
// [WARNING] Use of the "ScriptEngine" is only allowed in "GameThread a.k.a. CocosThread"!
se::Value onUdpMessageCb;
@ -55,8 +62,11 @@ void _onRead(uv_udp_t* req, ssize_t nread, const uv_buf_t* buf, const struct soc
free(gameThreadMsg);
});
} else {
CCLOG("UDP received hole punching from %s:%d", ip, port);
CCLOG("UDP received hole punching");
}
free(buf->base);
//uv_udp_recv_stop(req);
uv_close((uv_handle_t*)req, NULL);
}
static void _allocBuffer(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {