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Solve some compiler warnings:

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usage of memory after free (false positive)
unused variable (stacked mutex)
malloc parameter type mismatch
This commit is contained in:
Gio 2016-08-26 13:10:09 +02:00
parent 746f4d7292
commit 5274b8aa97
1 changed files with 30 additions and 38 deletions
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64
libbitdht/src/udp/udplayer.cc
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@ -243,27 +243,27 @@ void UdpLayer::run()
/* higher level interface */
void UdpLayer::recv_loop()
{
int maxsize = 16000;
size_t maxsize = 16000;
void *inbuf = malloc(maxsize);
if(inbuf == NULL)
{
std::cerr << "(EE) Error in memory allocation of size " << maxsize << " in " << __PRETTY_FUNCTION__ << std::endl;
return ;
}
if(inbuf == NULL)
{
std::cerr << "(EE) Error in memory allocation of size " << maxsize
<< " in " << __PRETTY_FUNCTION__ << std::endl;
return;
}
int status;
struct timeval timeout;
int status;
struct timeval timeout;
while(1)
{
fd_set rset;
for(;;)
for(;;)
{
/* check if we need to stop */
bool toStop = false;
{
bdStackMutex stack(sockMtx); /********** LOCK MUTEX *********/
bdStackMutex stack(sockMtx); (void) stack;
toStop = stopThread;
}
@ -272,45 +272,37 @@ void UdpLayer::recv_loop()
#ifdef DEBUG_UDP_LAYER
std::cerr << "UdpLayer::recv_loop() stopping thread" << std::endl;
#endif
free(inbuf) ;
free(inbuf);
stop();
return; // Avoid compiler warning about usage of inbuf after free
}
FD_ZERO(&rset);
FD_SET(sockfd, &rset);
timeout.tv_sec = 0;
timeout.tv_usec = 500000; /* 500 ms timeout */
status = select(sockfd+1, &rset, NULL, NULL, &timeout);
if (status > 0)
{
break; /* data available, go read it */
}
else if (status < 0)
{
fd_set rset;
FD_ZERO(&rset);
FD_SET(sockfd, &rset);
timeout.tv_sec = 0;
timeout.tv_usec = 500000; // 500 ms timeout
status = select(sockfd+1, &rset, NULL, NULL, &timeout);
if (status > 0) break; // data available, go read it
#ifdef DEBUG_UDP_LAYER
std::cerr << "UdpLayer::recv_loop() Error: " << bdnet_errno() << std::endl;
else if (status < 0) std::cerr << "UdpLayer::recv_loop() Error: "
<< bdnet_errno() << std::endl;
#endif
}
};
};
int nsize = maxsize;
int nsize = static_cast<int>(maxsize);
struct sockaddr_in from;
if (0 < receiveUdpPacket(inbuf, &nsize, from))
{
#ifdef DEBUG_UDP_LAYER
std::cerr << "UdpLayer::readPkt() from : " << from << std::endl;
std::cerr << printPkt(inbuf, nsize);
std::cerr << "UdpLayer::readPkt() from : " << from << std::endl
<< printPkt(inbuf, nsize);
#endif
// send to reciever.
recv -> recvPkt(inbuf, nsize, from);
recv->recvPkt(inbuf, nsize, from); // pass to reciever.
}
else
{
#ifdef DEBUG_UDP_LAYER
std::cerr << "UdpLayer::readPkt() not ready" << from;
std::cerr << std::endl;
else std::cerr << "UdpLayer::readPkt() not ready" << from << std::endl;
#endif
}
}
}