mirror of https://github.com/NekoX-Dev/NekoX.git
645 lines
19 KiB
C++
645 lines
19 KiB
C++
//
|
|
// libtgvoip is free and unencumbered public domain software.
|
|
// For more information, see http://unlicense.org or the UNLICENSE file
|
|
// you should have received with this source code distribution.
|
|
//
|
|
|
|
#include "NetworkSocketPosix.h"
|
|
#include <sys/socket.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
#include <netdb.h>
|
|
#include <net/if.h>
|
|
#include <sys/ioctl.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <netinet/tcp.h>
|
|
#include "../../logging.h"
|
|
#include "../../VoIPController.h"
|
|
#include "../../Buffers.h"
|
|
|
|
#ifdef __ANDROID__
|
|
#include <jni.h>
|
|
#include <sys/system_properties.h>
|
|
extern JavaVM* sharedJVM;
|
|
extern jclass jniUtilitiesClass;
|
|
#else
|
|
#include <ifaddrs.h>
|
|
#endif
|
|
|
|
using namespace tgvoip;
|
|
|
|
|
|
NetworkSocketPosix::NetworkSocketPosix(NetworkProtocol protocol) : NetworkSocket(protocol), lastRecvdV4(0), lastRecvdV6("::0"){
|
|
needUpdateNat64Prefix=true;
|
|
nat64Present=false;
|
|
switchToV6at=0;
|
|
isV4Available=false;
|
|
fd=-1;
|
|
useTCP=false;
|
|
closing=false;
|
|
|
|
tcpConnectedAddress=NULL;
|
|
tcpConnectedPort=0;
|
|
|
|
if(protocol==PROTO_TCP)
|
|
timeout=10.0;
|
|
lastSuccessfulOperationTime=VoIPController::GetCurrentTime();
|
|
}
|
|
|
|
NetworkSocketPosix::~NetworkSocketPosix(){
|
|
if(fd>=0){
|
|
Close();
|
|
}
|
|
if(tcpConnectedAddress)
|
|
delete tcpConnectedAddress;
|
|
if(pendingOutgoingPacket)
|
|
delete pendingOutgoingPacket;
|
|
}
|
|
|
|
void NetworkSocketPosix::SetMaxPriority(){
|
|
#ifdef __APPLE__
|
|
int prio=NET_SERVICE_TYPE_VO;
|
|
int res=setsockopt(fd, SOL_SOCKET, SO_NET_SERVICE_TYPE, &prio, sizeof(prio));
|
|
if(res<0){
|
|
LOGE("error setting darwin-specific net priority: %d / %s", errno, strerror(errno));
|
|
}
|
|
#elif defined(__linux__)
|
|
int prio=6;
|
|
int res=setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio));
|
|
if(res<0){
|
|
LOGE("error setting priority: %d / %s", errno, strerror(errno));
|
|
}
|
|
prio=46 << 2;
|
|
res=setsockopt(fd, SOL_IP, IP_TOS, &prio, sizeof(prio));
|
|
if(res<0){
|
|
LOGE("error setting ip tos: %d / %s", errno, strerror(errno));
|
|
}
|
|
#else
|
|
LOGI("cannot set socket priority");
|
|
#endif
|
|
}
|
|
|
|
void NetworkSocketPosix::Send(NetworkPacket *packet){
|
|
if(!packet || (protocol==PROTO_UDP && !packet->address)){
|
|
LOGW("tried to send null packet");
|
|
return;
|
|
}
|
|
int res;
|
|
if(protocol==PROTO_UDP){
|
|
sockaddr_in6 addr;
|
|
IPv4Address *v4addr=dynamic_cast<IPv4Address *>(packet->address);
|
|
if(v4addr){
|
|
if(needUpdateNat64Prefix && !isV4Available && VoIPController::GetCurrentTime()>switchToV6at && switchToV6at!=0){
|
|
LOGV("Updating NAT64 prefix");
|
|
nat64Present=false;
|
|
addrinfo *addr0;
|
|
int res=getaddrinfo("ipv4only.arpa", NULL, NULL, &addr0);
|
|
if(res!=0){
|
|
LOGW("Error updating NAT64 prefix: %d / %s", res, gai_strerror(res));
|
|
}else{
|
|
addrinfo *addrPtr;
|
|
unsigned char *addr170=NULL;
|
|
unsigned char *addr171=NULL;
|
|
for(addrPtr=addr0; addrPtr; addrPtr=addrPtr->ai_next){
|
|
if(addrPtr->ai_family==AF_INET6){
|
|
sockaddr_in6 *translatedAddr=(sockaddr_in6 *) addrPtr->ai_addr;
|
|
uint32_t v4part=*((uint32_t *) &translatedAddr->sin6_addr.s6_addr[12]);
|
|
if(v4part==0xAA0000C0 && !addr170){
|
|
addr170=translatedAddr->sin6_addr.s6_addr;
|
|
}
|
|
if(v4part==0xAB0000C0 && !addr171){
|
|
addr171=translatedAddr->sin6_addr.s6_addr;
|
|
}
|
|
char buf[INET6_ADDRSTRLEN];
|
|
LOGV("Got translated address: %s", inet_ntop(AF_INET6, &translatedAddr->sin6_addr, buf, sizeof(buf)));
|
|
}
|
|
}
|
|
if(addr170 && addr171 && memcmp(addr170, addr171, 12)==0){
|
|
nat64Present=true;
|
|
memcpy(nat64Prefix, addr170, 12);
|
|
char buf[INET6_ADDRSTRLEN];
|
|
LOGV("Found nat64 prefix from %s", inet_ntop(AF_INET6, addr170, buf, sizeof(buf)));
|
|
}else{
|
|
LOGV("Didn't find nat64");
|
|
}
|
|
freeaddrinfo(addr0);
|
|
}
|
|
needUpdateNat64Prefix=false;
|
|
}
|
|
memset(&addr, 0, sizeof(sockaddr_in6));
|
|
addr.sin6_family=AF_INET6;
|
|
*((uint32_t *) &addr.sin6_addr.s6_addr[12])=v4addr->GetAddress();
|
|
if(nat64Present)
|
|
memcpy(addr.sin6_addr.s6_addr, nat64Prefix, 12);
|
|
else
|
|
addr.sin6_addr.s6_addr[11]=addr.sin6_addr.s6_addr[10]=0xFF;
|
|
|
|
}else{
|
|
IPv6Address *v6addr=dynamic_cast<IPv6Address *>(packet->address);
|
|
assert(v6addr!=NULL);
|
|
memcpy(addr.sin6_addr.s6_addr, v6addr->GetAddress(), 16);
|
|
addr.sin6_family=AF_INET6;
|
|
}
|
|
addr.sin6_port=htons(packet->port);
|
|
res=(int)sendto(fd, packet->data, packet->length, 0, (const sockaddr *) &addr, sizeof(addr));
|
|
}else{
|
|
res=(int)send(fd, packet->data, packet->length, 0);
|
|
}
|
|
if(res<=0){
|
|
if(errno==EAGAIN || errno==EWOULDBLOCK){
|
|
if(pendingOutgoingPacket){
|
|
LOGE("Got EAGAIN but there's already a pending packet");
|
|
failed=true;
|
|
}else{
|
|
LOGV("Socket %d not ready to send", fd);
|
|
pendingOutgoingPacket=new Buffer(packet->length);
|
|
pendingOutgoingPacket->CopyFrom(packet->data, 0, packet->length);
|
|
readyToSend=false;
|
|
}
|
|
}else{
|
|
LOGE("error sending: %d / %s", errno, strerror(errno));
|
|
if(errno==ENETUNREACH && !isV4Available && VoIPController::GetCurrentTime()<switchToV6at){
|
|
switchToV6at=VoIPController::GetCurrentTime();
|
|
LOGI("Network unreachable, trying NAT64");
|
|
}
|
|
}
|
|
}else if((size_t)res!=packet->length && packet->protocol==PROTO_TCP){
|
|
if(pendingOutgoingPacket){
|
|
LOGE("send returned less than packet length but there's already a pending packet");
|
|
failed=true;
|
|
}else{
|
|
LOGV("Socket %d not ready to send", fd);
|
|
pendingOutgoingPacket=new Buffer(packet->length-res);
|
|
pendingOutgoingPacket->CopyFrom(packet->data+res, 0, packet->length-res);
|
|
readyToSend=false;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool NetworkSocketPosix::OnReadyToSend(){
|
|
if(pendingOutgoingPacket){
|
|
NetworkPacket pkt={0};
|
|
pkt.data=**pendingOutgoingPacket;
|
|
pkt.length=pendingOutgoingPacket->Length();
|
|
Send(&pkt);
|
|
delete pendingOutgoingPacket;
|
|
pendingOutgoingPacket=NULL;
|
|
return false;
|
|
}
|
|
readyToSend=true;
|
|
return true;
|
|
}
|
|
|
|
void NetworkSocketPosix::Receive(NetworkPacket *packet){
|
|
if(failed){
|
|
packet->length=0;
|
|
return;
|
|
}
|
|
if(protocol==PROTO_UDP){
|
|
int addrLen=sizeof(sockaddr_in6);
|
|
sockaddr_in6 srcAddr;
|
|
ssize_t len=recvfrom(fd, packet->data, packet->length, 0, (sockaddr *) &srcAddr, (socklen_t *) &addrLen);
|
|
if(len>0)
|
|
packet->length=(size_t) len;
|
|
else{
|
|
LOGE("error receiving %d / %s", errno, strerror(errno));
|
|
packet->length=0;
|
|
return;
|
|
}
|
|
//LOGV("Received %d bytes from %s:%d at %.5lf", len, inet_ntoa(srcAddr.sin_addr), ntohs(srcAddr.sin_port), GetCurrentTime());
|
|
if(!isV4Available && IN6_IS_ADDR_V4MAPPED(&srcAddr.sin6_addr)){
|
|
isV4Available=true;
|
|
LOGI("Detected IPv4 connectivity, will not try IPv6");
|
|
}
|
|
if(IN6_IS_ADDR_V4MAPPED(&srcAddr.sin6_addr) || (nat64Present && memcmp(nat64Prefix, srcAddr.sin6_addr.s6_addr, 12)==0)){
|
|
in_addr v4addr=*((in_addr *) &srcAddr.sin6_addr.s6_addr[12]);
|
|
lastRecvdV4=IPv4Address(v4addr.s_addr);
|
|
packet->address=&lastRecvdV4;
|
|
}else{
|
|
lastRecvdV6=IPv6Address(srcAddr.sin6_addr.s6_addr);
|
|
packet->address=&lastRecvdV6;
|
|
}
|
|
packet->protocol=PROTO_UDP;
|
|
packet->port=ntohs(srcAddr.sin6_port);
|
|
}else if(protocol==PROTO_TCP){
|
|
int res=(int)recv(fd, packet->data, packet->length, 0);
|
|
if(res<=0){
|
|
LOGE("Error receiving from TCP socket: %d / %s", errno, strerror(errno));
|
|
failed=true;
|
|
packet->length=0;
|
|
}else{
|
|
packet->length=(size_t)res;
|
|
packet->address=tcpConnectedAddress;
|
|
packet->port=tcpConnectedPort;
|
|
packet->protocol=PROTO_TCP;
|
|
}
|
|
}
|
|
}
|
|
|
|
void NetworkSocketPosix::Open(){
|
|
if(protocol!=PROTO_UDP)
|
|
return;
|
|
fd=socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
|
|
if(fd<0){
|
|
LOGE("error creating socket: %d / %s", errno, strerror(errno));
|
|
failed=true;
|
|
return;
|
|
}
|
|
int flag=0;
|
|
int res=setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &flag, sizeof(flag));
|
|
if(res<0){
|
|
LOGE("error enabling dual stack socket: %d / %s", errno, strerror(errno));
|
|
failed=true;
|
|
return;
|
|
}
|
|
|
|
SetMaxPriority();
|
|
fcntl(fd, F_SETFL, O_NONBLOCK);
|
|
|
|
int tries=0;
|
|
sockaddr_in6 addr;
|
|
//addr.sin6_addr.s_addr=0;
|
|
memset(&addr, 0, sizeof(sockaddr_in6));
|
|
//addr.sin6_len=sizeof(sa_family_t);
|
|
addr.sin6_family=AF_INET6;
|
|
for(tries=0;tries<10;tries++){
|
|
addr.sin6_port=htons(GenerateLocalPort());
|
|
res=::bind(fd, (sockaddr *) &addr, sizeof(sockaddr_in6));
|
|
LOGV("trying bind to port %u", ntohs(addr.sin6_port));
|
|
if(res<0){
|
|
LOGE("error binding to port %u: %d / %s", ntohs(addr.sin6_port), errno, strerror(errno));
|
|
}else{
|
|
break;
|
|
}
|
|
}
|
|
if(tries==10){
|
|
addr.sin6_port=0;
|
|
res=::bind(fd, (sockaddr *) &addr, sizeof(sockaddr_in6));
|
|
if(res<0){
|
|
LOGE("error binding to port %u: %d / %s", ntohs(addr.sin6_port), errno, strerror(errno));
|
|
//SetState(STATE_FAILED);
|
|
failed=true;
|
|
return;
|
|
}
|
|
}
|
|
size_t addrLen=sizeof(sockaddr_in6);
|
|
getsockname(fd, (sockaddr*)&addr, (socklen_t*) &addrLen);
|
|
LOGD("Bound to local UDP port %u", ntohs(addr.sin6_port));
|
|
|
|
needUpdateNat64Prefix=true;
|
|
isV4Available=false;
|
|
switchToV6at=VoIPController::GetCurrentTime()+ipv6Timeout;
|
|
}
|
|
|
|
void NetworkSocketPosix::Close(){
|
|
closing=true;
|
|
failed=true;
|
|
|
|
if (fd>=0) {
|
|
shutdown(fd, SHUT_RDWR);
|
|
close(fd);
|
|
fd=-1;
|
|
}
|
|
}
|
|
|
|
void NetworkSocketPosix::Connect(const NetworkAddress *address, uint16_t port){
|
|
const IPv4Address* v4addr=dynamic_cast<const IPv4Address*>(address);
|
|
const IPv6Address* v6addr=dynamic_cast<const IPv6Address*>(address);
|
|
struct sockaddr_in v4={0};
|
|
struct sockaddr_in6 v6={0};
|
|
struct sockaddr* addr=NULL;
|
|
size_t addrLen=0;
|
|
if(v4addr){
|
|
v4.sin_family=AF_INET;
|
|
v4.sin_addr.s_addr=v4addr->GetAddress();
|
|
v4.sin_port=htons(port);
|
|
addr=reinterpret_cast<sockaddr*>(&v4);
|
|
addrLen=sizeof(v4);
|
|
}else if(v6addr){
|
|
v6.sin6_family=AF_INET6;
|
|
memcpy(v6.sin6_addr.s6_addr, v6addr->GetAddress(), 16);
|
|
v6.sin6_flowinfo=0;
|
|
v6.sin6_scope_id=0;
|
|
v6.sin6_port=htons(port);
|
|
addr=reinterpret_cast<sockaddr*>(&v6);
|
|
addrLen=sizeof(v6);
|
|
}else{
|
|
LOGE("Unknown address type in TCP connect");
|
|
failed=true;
|
|
return;
|
|
}
|
|
fd=socket(addr->sa_family, SOCK_STREAM, IPPROTO_TCP);
|
|
if(fd<0){
|
|
LOGE("Error creating TCP socket: %d / %s", errno, strerror(errno));
|
|
failed=true;
|
|
return;
|
|
}
|
|
int opt=1;
|
|
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt));
|
|
timeval timeout;
|
|
timeout.tv_sec=5;
|
|
timeout.tv_usec=0;
|
|
setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout));
|
|
timeout.tv_sec=60;
|
|
setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout));
|
|
fcntl(fd, F_SETFL, O_NONBLOCK);
|
|
int res=(int)connect(fd, (const sockaddr*) addr, (socklen_t)addrLen);
|
|
if(res!=0 && errno!=EINVAL && errno!=EINPROGRESS){
|
|
LOGW("error connecting TCP socket to %s:%u: %d / %s; %d / %s", address->ToString().c_str(), port, res, strerror(res), errno, strerror(errno));
|
|
close(fd);
|
|
failed=true;
|
|
return;
|
|
}
|
|
tcpConnectedAddress=v4addr ? (NetworkAddress*)new IPv4Address(*v4addr) : (NetworkAddress*)new IPv6Address(*v6addr);
|
|
tcpConnectedPort=port;
|
|
LOGI("successfully connected to %s:%d", tcpConnectedAddress->ToString().c_str(), tcpConnectedPort);
|
|
}
|
|
|
|
void NetworkSocketPosix::OnActiveInterfaceChanged(){
|
|
needUpdateNat64Prefix=true;
|
|
isV4Available=false;
|
|
switchToV6at=VoIPController::GetCurrentTime()+ipv6Timeout;
|
|
}
|
|
|
|
std::string NetworkSocketPosix::GetLocalInterfaceInfo(IPv4Address *v4addr, IPv6Address *v6addr){
|
|
std::string name="";
|
|
// Android doesn't support ifaddrs
|
|
#ifdef __ANDROID__
|
|
JNIEnv *env=NULL;
|
|
bool didAttach=false;
|
|
sharedJVM->GetEnv((void **) &env, JNI_VERSION_1_6);
|
|
if(!env){
|
|
sharedJVM->AttachCurrentThread(&env, NULL);
|
|
didAttach=true;
|
|
}
|
|
|
|
jmethodID getLocalNetworkAddressesAndInterfaceNameMethod=env->GetStaticMethodID(jniUtilitiesClass, "getLocalNetworkAddressesAndInterfaceName", "()[Ljava/lang/String;");
|
|
jobjectArray jinfo=(jobjectArray) env->CallStaticObjectMethod(jniUtilitiesClass, getLocalNetworkAddressesAndInterfaceNameMethod);
|
|
if(jinfo){
|
|
jstring jitfName=static_cast<jstring>(env->GetObjectArrayElement(jinfo, 0));
|
|
jstring jipv4=static_cast<jstring>(env->GetObjectArrayElement(jinfo, 1));
|
|
jstring jipv6=static_cast<jstring>(env->GetObjectArrayElement(jinfo, 2));
|
|
if(jitfName){
|
|
const char *itfchars=env->GetStringUTFChars(jitfName, NULL);
|
|
name=std::string(itfchars);
|
|
env->ReleaseStringUTFChars(jitfName, itfchars);
|
|
}
|
|
|
|
if(v4addr && jipv4){
|
|
const char* ipchars=env->GetStringUTFChars(jipv4, NULL);
|
|
*v4addr=IPv4Address(ipchars);
|
|
env->ReleaseStringUTFChars(jipv4, ipchars);
|
|
}
|
|
if(v6addr && jipv6){
|
|
const char* ipchars=env->GetStringUTFChars(jipv6, NULL);
|
|
*v6addr=IPv6Address(ipchars);
|
|
env->ReleaseStringUTFChars(jipv6, ipchars);
|
|
}
|
|
}else{
|
|
LOGW("Failed to get android network interface info");
|
|
}
|
|
|
|
if(didAttach){
|
|
sharedJVM->DetachCurrentThread();
|
|
}
|
|
#else
|
|
struct ifaddrs* interfaces;
|
|
if(!getifaddrs(&interfaces)){
|
|
struct ifaddrs* interface;
|
|
for(interface=interfaces;interface;interface=interface->ifa_next){
|
|
if(!(interface->ifa_flags & IFF_UP) || !(interface->ifa_flags & IFF_RUNNING) || (interface->ifa_flags & IFF_LOOPBACK))
|
|
continue;
|
|
const struct sockaddr_in* addr=(const struct sockaddr_in*)interface->ifa_addr;
|
|
if(addr){
|
|
if(addr->sin_family==AF_INET){
|
|
if((ntohl(addr->sin_addr.s_addr) & 0xFFFF0000)==0xA9FE0000)
|
|
continue;
|
|
if(v4addr)
|
|
*v4addr=IPv4Address(addr->sin_addr.s_addr);
|
|
name=interface->ifa_name;
|
|
}else if(addr->sin_family==AF_INET6){
|
|
const struct sockaddr_in6* addr6=(const struct sockaddr_in6*)addr;
|
|
if((addr6->sin6_addr.s6_addr[0] & 0xF0)==0xF0)
|
|
continue;
|
|
if(v6addr)
|
|
*v6addr=IPv6Address(addr6->sin6_addr.s6_addr);
|
|
name=interface->ifa_name;
|
|
}
|
|
}
|
|
}
|
|
freeifaddrs(interfaces);
|
|
}
|
|
#endif
|
|
return name;
|
|
}
|
|
|
|
uint16_t NetworkSocketPosix::GetLocalPort(){
|
|
sockaddr_in6 addr;
|
|
size_t addrLen=sizeof(sockaddr_in6);
|
|
getsockname(fd, (sockaddr*)&addr, (socklen_t*) &addrLen);
|
|
return ntohs(addr.sin6_port);
|
|
}
|
|
|
|
std::string NetworkSocketPosix::V4AddressToString(uint32_t address){
|
|
char buf[INET_ADDRSTRLEN];
|
|
in_addr addr;
|
|
addr.s_addr=address;
|
|
inet_ntop(AF_INET, &addr, buf, sizeof(buf));
|
|
return std::string(buf);
|
|
}
|
|
|
|
std::string NetworkSocketPosix::V6AddressToString(const unsigned char *address){
|
|
char buf[INET6_ADDRSTRLEN];
|
|
in6_addr addr;
|
|
memcpy(addr.s6_addr, address, 16);
|
|
inet_ntop(AF_INET6, &addr, buf, sizeof(buf));
|
|
return std::string(buf);
|
|
}
|
|
|
|
uint32_t NetworkSocketPosix::StringToV4Address(std::string address){
|
|
in_addr addr;
|
|
inet_pton(AF_INET, address.c_str(), &addr);
|
|
return addr.s_addr;
|
|
}
|
|
|
|
void NetworkSocketPosix::StringToV6Address(std::string address, unsigned char *out){
|
|
in6_addr addr;
|
|
inet_pton(AF_INET6, address.c_str(), &addr);
|
|
memcpy(out, addr.s6_addr, 16);
|
|
}
|
|
|
|
IPv4Address *NetworkSocketPosix::ResolveDomainName(std::string name){
|
|
addrinfo* addr0;
|
|
IPv4Address* ret=NULL;
|
|
int res=getaddrinfo(name.c_str(), NULL, NULL, &addr0);
|
|
if(res!=0){
|
|
LOGW("Error updating NAT64 prefix: %d / %s", res, gai_strerror(res));
|
|
}else{
|
|
addrinfo* addrPtr;
|
|
for(addrPtr=addr0;addrPtr;addrPtr=addrPtr->ai_next){
|
|
if(addrPtr->ai_family==AF_INET){
|
|
sockaddr_in* addr=(sockaddr_in*)addrPtr->ai_addr;
|
|
ret=new IPv4Address(addr->sin_addr.s_addr);
|
|
break;
|
|
}
|
|
}
|
|
freeaddrinfo(addr0);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
NetworkAddress *NetworkSocketPosix::GetConnectedAddress(){
|
|
return tcpConnectedAddress;
|
|
}
|
|
|
|
uint16_t NetworkSocketPosix::GetConnectedPort(){
|
|
return tcpConnectedPort;
|
|
}
|
|
|
|
void NetworkSocketPosix::SetTimeouts(int sendTimeout, int recvTimeout){
|
|
timeval timeout;
|
|
timeout.tv_sec=sendTimeout;
|
|
timeout.tv_usec=0;
|
|
setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout));
|
|
timeout.tv_sec=recvTimeout;
|
|
setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout));
|
|
}
|
|
|
|
bool NetworkSocketPosix::Select(std::vector<NetworkSocket *> &readFds, std::vector<NetworkSocket*>& writeFds, std::vector<NetworkSocket *> &errorFds, SocketSelectCanceller* _canceller) {
|
|
fd_set readSet;
|
|
fd_set writeSet;
|
|
fd_set errorSet;
|
|
FD_ZERO(&readSet);
|
|
FD_ZERO(&writeSet);
|
|
FD_ZERO(&errorSet);
|
|
SocketSelectCancellerPosix *canceller = dynamic_cast<SocketSelectCancellerPosix *>(_canceller);
|
|
if (canceller)
|
|
FD_SET(canceller->pipeRead, &readSet);
|
|
|
|
int maxfd = canceller ? canceller->pipeRead : 0;
|
|
|
|
for (NetworkSocket *&s:readFds) {
|
|
int sfd = GetDescriptorFromSocket(s);
|
|
if (sfd <= 0) {
|
|
LOGW("can't select on one of sockets because it's not a NetworkSocketPosix instance");
|
|
continue;
|
|
}
|
|
FD_SET(sfd, &readSet);
|
|
if (maxfd < sfd)
|
|
maxfd = sfd;
|
|
}
|
|
|
|
for (NetworkSocket *&s:writeFds) {
|
|
int sfd = GetDescriptorFromSocket(s);
|
|
if (sfd <= 0) {
|
|
LOGW("can't select on one of sockets because it's not a NetworkSocketPosix instance");
|
|
continue;
|
|
}
|
|
FD_SET(sfd, &writeSet);
|
|
if (maxfd < sfd)
|
|
maxfd = sfd;
|
|
}
|
|
|
|
bool anyFailed = false;
|
|
|
|
for (NetworkSocket *&s:errorFds) {
|
|
int sfd = GetDescriptorFromSocket(s);
|
|
if (sfd <= 0) {
|
|
LOGW("can't select on one of sockets because it's not a NetworkSocketPosix instance");
|
|
continue;
|
|
}
|
|
if (s->timeout > 0 && VoIPController::GetCurrentTime() - s->lastSuccessfulOperationTime > s->timeout) {
|
|
LOGW("Socket %d timed out", sfd);
|
|
s->failed = true;
|
|
}
|
|
anyFailed |= s->IsFailed();
|
|
FD_SET(sfd, &errorSet);
|
|
if (maxfd < sfd)
|
|
maxfd = sfd;
|
|
}
|
|
|
|
select(maxfd + 1, &readSet, &writeSet, &errorSet, NULL);
|
|
|
|
if (canceller && FD_ISSET(canceller->pipeRead, &readSet) && !anyFailed) {
|
|
char c;
|
|
(void) read(canceller->pipeRead, &c, 1);
|
|
return false;
|
|
} else if (anyFailed) {
|
|
FD_ZERO(&readSet);
|
|
FD_ZERO(&writeSet);
|
|
}
|
|
|
|
std::vector<NetworkSocket *>::iterator itr = readFds.begin();
|
|
while (itr != readFds.end()) {
|
|
int sfd = GetDescriptorFromSocket(*itr);
|
|
if (sfd > 0 && FD_ISSET(sfd, &readSet)) {
|
|
(*itr)->lastSuccessfulOperationTime = VoIPController::GetCurrentTime();
|
|
}
|
|
if (sfd <= 0 || !FD_ISSET(sfd, &readSet) || !(*itr)->OnReadyToReceive()) {
|
|
itr = readFds.erase(itr);
|
|
} else {
|
|
++itr;
|
|
}
|
|
}
|
|
|
|
itr = writeFds.begin();
|
|
while (itr != writeFds.end()) {
|
|
int sfd = GetDescriptorFromSocket(*itr);
|
|
if (sfd <= 0 || !FD_ISSET(sfd, &writeSet)) {
|
|
itr = writeFds.erase(itr);
|
|
} else {
|
|
LOGV("Socket %d is ready to send", sfd);
|
|
(*itr)->lastSuccessfulOperationTime = VoIPController::GetCurrentTime();
|
|
if ((*itr)->OnReadyToSend())
|
|
++itr;
|
|
else
|
|
itr = writeFds.erase(itr);
|
|
}
|
|
}
|
|
|
|
itr = errorFds.begin();
|
|
while (itr != errorFds.end()) {
|
|
int sfd = GetDescriptorFromSocket(*itr);
|
|
if ((sfd <= 0 || !FD_ISSET(sfd, &errorSet)) && !(*itr)->IsFailed()) {
|
|
itr = errorFds.erase(itr);
|
|
} else {
|
|
++itr;
|
|
}
|
|
}
|
|
//LOGV("select fds left: read=%d, write=%d, error=%d", (int)readFds.size(), (int)writeFds.size(), (int)errorFds.size());
|
|
|
|
return readFds.size() > 0 || errorFds.size() > 0 || writeFds.size() > 0;
|
|
}
|
|
|
|
SocketSelectCancellerPosix::SocketSelectCancellerPosix(){
|
|
int p[2];
|
|
int pipeRes=pipe(p);
|
|
if(pipeRes!=0){
|
|
LOGE("pipe() failed");
|
|
abort();
|
|
}
|
|
pipeRead=p[0];
|
|
pipeWrite=p[1];
|
|
}
|
|
|
|
SocketSelectCancellerPosix::~SocketSelectCancellerPosix(){
|
|
close(pipeRead);
|
|
close(pipeWrite);
|
|
}
|
|
|
|
void SocketSelectCancellerPosix::CancelSelect(){
|
|
char c=1;
|
|
(void) write(pipeWrite, &c, 1);
|
|
}
|
|
|
|
int NetworkSocketPosix::GetDescriptorFromSocket(NetworkSocket *socket){
|
|
NetworkSocketPosix* sp=dynamic_cast<NetworkSocketPosix*>(socket);
|
|
if(sp)
|
|
return sp->fd;
|
|
NetworkSocketWrapper* sw=dynamic_cast<NetworkSocketWrapper*>(socket);
|
|
if(sw)
|
|
return GetDescriptorFromSocket(sw->GetWrapped());
|
|
return 0;
|
|
}
|