forked from Mirrorlandia_minetest/minetest
Migrate UDPSocket to use poll()
This commit is contained in:
parent
e8008c1b21
commit
ee727eb65e
@ -43,7 +43,7 @@ typedef int socklen_t;
|
|||||||
#include <sys/socket.h>
|
#include <sys/socket.h>
|
||||||
#include <netinet/in.h>
|
#include <netinet/in.h>
|
||||||
#include <fcntl.h>
|
#include <fcntl.h>
|
||||||
#include <netdb.h>
|
#include <poll.h>
|
||||||
#include <unistd.h>
|
#include <unistd.h>
|
||||||
#include <arpa/inet.h>
|
#include <arpa/inet.h>
|
||||||
#define LAST_SOCKET_ERR() (errno)
|
#define LAST_SOCKET_ERR() (errno)
|
||||||
@ -332,46 +332,45 @@ void UDPSocket::setTimeoutMs(int timeout_ms)
|
|||||||
|
|
||||||
bool UDPSocket::WaitData(int timeout_ms)
|
bool UDPSocket::WaitData(int timeout_ms)
|
||||||
{
|
{
|
||||||
fd_set readset;
|
timeout_ms = MYMAX(timeout_ms, 0);
|
||||||
int result;
|
|
||||||
|
|
||||||
// Initialize the set
|
|
||||||
FD_ZERO(&readset);
|
|
||||||
FD_SET(m_handle, &readset);
|
|
||||||
|
|
||||||
// Initialize time out struct
|
|
||||||
struct timeval tv;
|
|
||||||
tv.tv_sec = 0;
|
|
||||||
tv.tv_usec = timeout_ms * 1000;
|
|
||||||
|
|
||||||
// select()
|
|
||||||
result = select(m_handle + 1, &readset, NULL, NULL, &tv);
|
|
||||||
|
|
||||||
if (result == 0)
|
|
||||||
return false;
|
|
||||||
|
|
||||||
int e = LAST_SOCKET_ERR();
|
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
if (result < 0 && (e == WSAEINTR || e == WSAEBADF)) {
|
WSAPOLLFD pfd;
|
||||||
|
pfd.fd = m_handle;
|
||||||
|
pfd.events = POLLRDNORM;
|
||||||
|
|
||||||
|
int result = WSAPoll(&pfd, 1, timeout_ms);
|
||||||
#else
|
#else
|
||||||
if (result < 0 && (e == EINTR || e == EBADF)) {
|
struct pollfd pfd;
|
||||||
|
pfd.fd = m_handle;
|
||||||
|
pfd.events = POLLIN;
|
||||||
|
|
||||||
|
int result = poll(&pfd, 1, timeout_ms);
|
||||||
#endif
|
#endif
|
||||||
// N.B. select() fails when sockets are destroyed on Connection's dtor
|
|
||||||
// with EBADF. Instead of doing tricky synchronization, allow this
|
if (result == 0) {
|
||||||
|
return false; // No data
|
||||||
|
} else if (result > 0) {
|
||||||
|
// There might be data
|
||||||
|
return pfd.revents != 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Error case
|
||||||
|
int e = LAST_SOCKET_ERR();
|
||||||
|
|
||||||
|
#ifdef _WIN32
|
||||||
|
if (e == WSAEINTR || e == WSAEBADF) {
|
||||||
|
#else
|
||||||
|
if (e == EINTR || e == EBADF) {
|
||||||
|
#endif
|
||||||
|
// N.B. poll() fails when sockets are destroyed on Connection's dtor
|
||||||
|
// with EBADF. Instead of doing tricky synchronization, allow this
|
||||||
// thread to exit but don't throw an exception.
|
// thread to exit but don't throw an exception.
|
||||||
return false;
|
return false;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (result < 0) {
|
tracestream << (int)m_handle << ": poll failed: "
|
||||||
tracestream << (int)m_handle << ": Select failed: " << SOCKET_ERR_STR(e)
|
<< SOCKET_ERR_STR(e) << std::endl;
|
||||||
<< std::endl;
|
|
||||||
|
|
||||||
throw SocketException("Select failed");
|
throw SocketException("poll failed");
|
||||||
} else if (!FD_ISSET(m_handle, &readset)) {
|
|
||||||
// No data
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
// There is data
|
|
||||||
return true;
|
|
||||||
}
|
}
|
||||||
|
Loading…
Reference in New Issue
Block a user