void
ClosingService::ThreadFunc()
{
for (;;) {
PRFileDesc *fd;
{
mozilla::MonitorAutoLock mon(mMonitor);
while (!mShutdown && (mQueue.Length() == 0)) {
mon.Wait();
}
if (mShutdown) {
// If we are in shutdown leak the rest of the sockets.
for (uint32_t i = 0; i < mQueue.Length(); i++) {
fd = mQueue[i];
// If the ClosingService layer is the first layer above
// PR_NSPR_IO_LAYER we are not going to leak anything, but PR_Close
// will not be called.
PR_Free(fd);
}
mQueue.Clear();
return;
}
fd = mQueue[0];
mQueue.RemoveElementAt(0);
}
// Leave lock before closing socket. It can block for a long time and in
// case we accidentally attach this layer twice this would cause deadlock.
bool tcp = (PR_GetDescType(PR_GetIdentitiesLayer(fd, PR_NSPR_IO_LAYER)) ==
PR_DESC_SOCKET_TCP);
PRIntervalTime closeStarted = PR_IntervalNow();
fd->methods->close(fd);
// Post telemetry.
if (tcp) {
SendPRCloseTelemetry(closeStarted,
Telemetry::PRCLOSE_TCP_BLOCKING_TIME_NORMAL,
Telemetry::PRCLOSE_TCP_BLOCKING_TIME_SHUTDOWN,
Telemetry::PRCLOSE_TCP_BLOCKING_TIME_CONNECTIVITY_CHANGE,
Telemetry::PRCLOSE_TCP_BLOCKING_TIME_LINK_CHANGE,
Telemetry::PRCLOSE_TCP_BLOCKING_TIME_OFFLINE);
} else {
SendPRCloseTelemetry(closeStarted,
Telemetry::PRCLOSE_UDP_BLOCKING_TIME_NORMAL,
Telemetry::PRCLOSE_UDP_BLOCKING_TIME_SHUTDOWN,
Telemetry::PRCLOSE_UDP_BLOCKING_TIME_CONNECTIVITY_CHANGE,
Telemetry::PRCLOSE_UDP_BLOCKING_TIME_LINK_CHANGE,
Telemetry::PRCLOSE_UDP_BLOCKING_TIME_OFFLINE);
}
}
}
int
PRfilebuf::sync()
{
PRInt32 count;
if (_fd==0)
return(EOF);
if (!unbuffered()){
// Sync write area
if ((count=out_waiting())!=0){
PRInt32 nout;
if ((nout =PR_Write(_fd,
(void *) pbase(),
(unsigned int)count)) != count){
if (nout > 0) {
// should set _pptr -= nout
pbump(-(int)nout);
memmove(pbase(), pbase()+nout, (int)(count-nout));
}
return(EOF);
}
}
setp(0,0); // empty put area
if (PR_GetDescType(_fd) == PR_DESC_FILE){
// Sockets can't seek; don't need this
if ((count=in_avail()) > 0){
if (PR_Seek(_fd, -count, PR_SEEK_CUR)!=-1L)
{
return (EOF);
}
}
}
setg(0,0,0); // empty get area
}
return(0);
}
int main(int argc, char **argv)
{
PRFileDesc *listenSock1, *listenSock2;
PRFileDesc *badFD;
PRUint16 listenPort1, listenPort2;
PRNetAddr addr;
char buf[BUF_SIZE];
PRThread *clientThread;
PRPollDesc pds0[10], pds1[10], *pds, *other_pds;
PRIntn npds;
PRInt32 retVal;
PRInt32 rv;
PROsfd sd;
struct sockaddr_in saddr;
PRIntn saddr_len;
PRUint16 listenPort3;
PRFileDesc *socket_poll_fd;
PRIntn i, j;
PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
PR_STDIO_INIT();
printf("This program tests PR_Poll with sockets.\n");
printf("Timeout, error reporting, and normal operation are tested.\n\n");
/* Create two listening sockets */
if ((listenSock1 = PR_NewTCPSocket()) == NULL) {
fprintf(stderr, "Can't create a new TCP socket\n");
exit(1);
}
addr.inet.family = PR_AF_INET;
addr.inet.ip = PR_htonl(PR_INADDR_ANY);
addr.inet.port = PR_htons(0);
if (PR_Bind(listenSock1, &addr) == PR_FAILURE) {
fprintf(stderr, "Can't bind socket\n");
exit(1);
}
if (PR_GetSockName(listenSock1, &addr) == PR_FAILURE) {
fprintf(stderr, "PR_GetSockName failed\n");
exit(1);
}
listenPort1 = PR_ntohs(addr.inet.port);
if (PR_Listen(listenSock1, 5) == PR_FAILURE) {
fprintf(stderr, "Can't listen on a socket\n");
exit(1);
}
if ((listenSock2 = PR_NewTCPSocket()) == NULL) {
fprintf(stderr, "Can't create a new TCP socket\n");
exit(1);
}
addr.inet.family = PR_AF_INET;
addr.inet.ip = PR_htonl(PR_INADDR_ANY);
addr.inet.port = PR_htons(0);
if (PR_Bind(listenSock2, &addr) == PR_FAILURE) {
fprintf(stderr, "Can't bind socket\n");
exit(1);
}
if (PR_GetSockName(listenSock2, &addr) == PR_FAILURE) {
fprintf(stderr, "PR_GetSockName failed\n");
exit(1);
}
listenPort2 = PR_ntohs(addr.inet.port);
if (PR_Listen(listenSock2, 5) == PR_FAILURE) {
fprintf(stderr, "Can't listen on a socket\n");
exit(1);
}
/* Set up the poll descriptor array */
pds = pds0;
other_pds = pds1;
memset(pds, 0, sizeof(pds));
npds = 0;
pds[npds].fd = listenSock1;
pds[npds].in_flags = PR_POLL_READ;
npds++;
pds[npds].fd = listenSock2;
pds[npds].in_flags = PR_POLL_READ;
npds++;
sd = socket(AF_INET, SOCK_STREAM, 0);
PR_ASSERT(sd >= 0);
memset((char *) &saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET;
saddr.sin_addr.s_addr = htonl(INADDR_ANY);
saddr.sin_port = htons(0);
rv = bind(sd, (struct sockaddr *)&saddr, sizeof(saddr));
PR_ASSERT(rv == 0);
saddr_len = sizeof(saddr);
rv = getsockname(sd, (struct sockaddr *) &saddr, &saddr_len);
PR_ASSERT(rv == 0);
listenPort3 = ntohs(saddr.sin_port);
rv = listen(sd, 5);
PR_ASSERT(rv == 0);
pds[npds].fd = socket_poll_fd = PR_CreateSocketPollFd(sd);
PR_ASSERT(pds[npds].fd);
pds[npds].in_flags = PR_POLL_READ;
npds++;
PR_snprintf(buf, sizeof(buf),
"The server thread is listening on ports %hu, %hu and %hu\n\n",
listenPort1, listenPort2, listenPort3);
printf("%s", buf);
/* Testing timeout */
printf("PR_Poll should time out in 5 seconds\n");
retVal = PR_Poll(pds, npds, PR_SecondsToInterval(5));
if (retVal != 0) {
PR_snprintf(buf, sizeof(buf),
"PR_Poll should time out and return 0, but it returns %ld\n",
retVal);
fprintf(stderr, "%s", buf);
exit(1);
}
printf("PR_Poll timed out. Test passed.\n\n");
/* Testing bad fd */
printf("PR_Poll should detect a bad file descriptor\n");
if ((badFD = PR_NewTCPSocket()) == NULL) {
fprintf(stderr, "Can't create a TCP socket\n");
exit(1);
}
pds[npds].fd = badFD;
pds[npds].in_flags = PR_POLL_READ;
npds++;
PR_Close(badFD); /* make the fd bad */
#if 0
retVal = PR_Poll(pds, npds, PR_INTERVAL_NO_TIMEOUT);
if (retVal != 1 || (unsigned short) pds[2].out_flags != PR_POLL_NVAL) {
fprintf(stderr, "Failed to detect the bad fd: "
"PR_Poll returns %d, out_flags is 0x%hx\n",
retVal, pds[npds - 1].out_flags);
exit(1);
}
printf("PR_Poll detected the bad fd. Test passed.\n\n");
#endif
npds--;
clientThread = PR_CreateThread(PR_USER_THREAD,
clientThreadFunc, (void *) listenPort1,
PR_PRIORITY_NORMAL, PR_LOCAL_THREAD,
PR_UNJOINABLE_THREAD, 0);
if (clientThread == NULL) {
fprintf(stderr, "can't create thread\n");
exit(1);
}
clientThread = PR_CreateThread(PR_USER_THREAD,
clientThreadFunc, (void *) listenPort2,
PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD,
PR_UNJOINABLE_THREAD, 0);
if (clientThread == NULL) {
fprintf(stderr, "can't create thread\n");
exit(1);
}
clientThread = PR_CreateThread(PR_USER_THREAD,
clientThreadFunc, (void *) listenPort3,
PR_PRIORITY_NORMAL, PR_GLOBAL_BOUND_THREAD,
PR_UNJOINABLE_THREAD, 0);
if (clientThread == NULL) {
fprintf(stderr, "can't create thread\n");
exit(1);
}
printf("Three client threads are created. Each of them will\n");
printf("send data to one of the three ports the server is listening on.\n");
printf("The data they send is the port number. Each of them send\n");
printf("the data five times, so you should see ten lines below,\n");
printf("interleaved in an arbitrary order.\n");
/* 30 events total */
i = 0;
while (i < 30) {
PRPollDesc *tmp;
int nextIndex;
int nEvents = 0;
retVal = PR_Poll(pds, npds, PR_INTERVAL_NO_TIMEOUT);
PR_ASSERT(retVal != 0); /* no timeout */
if (retVal == -1) {
fprintf(stderr, "PR_Poll failed\n");
exit(1);
}
nextIndex = 3;
/* the three listening sockets */
for (j = 0; j < 3; j++) {
other_pds[j] = pds[j];
PR_ASSERT((pds[j].out_flags & PR_POLL_WRITE) == 0
&& (pds[j].out_flags & PR_POLL_EXCEPT) == 0);
if (pds[j].out_flags & PR_POLL_READ) {
PRFileDesc *sock;
nEvents++;
if (j == 2) {
PROsfd newsd;
newsd = accept(PR_FileDesc2NativeHandle(pds[j].fd), NULL, 0);
if (newsd == -1) {
fprintf(stderr, "accept() failed\n");
exit(1);
}
other_pds[nextIndex].fd = PR_CreateSocketPollFd(newsd);
PR_ASSERT(other_pds[nextIndex].fd);
other_pds[nextIndex].in_flags = PR_POLL_READ;
} else {
sock = PR_Accept(pds[j].fd, NULL, PR_INTERVAL_NO_TIMEOUT);
if (sock == NULL) {
fprintf(stderr, "PR_Accept() failed\n");
exit(1);
}
other_pds[nextIndex].fd = sock;
other_pds[nextIndex].in_flags = PR_POLL_READ;
}
nextIndex++;
} else if (pds[j].out_flags & PR_POLL_ERR) {
fprintf(stderr, "PR_Poll() indicates that an fd has error\n");
exit(1);
} else if (pds[j].out_flags & PR_POLL_NVAL) {
fprintf(stderr, "PR_Poll() indicates that fd %d is invalid\n",
PR_FileDesc2NativeHandle(pds[j].fd));
exit(1);
}
}
for (j = 3; j < npds; j++) {
PR_ASSERT((pds[j].out_flags & PR_POLL_WRITE) == 0
&& (pds[j].out_flags & PR_POLL_EXCEPT) == 0);
if (pds[j].out_flags & PR_POLL_READ) {
PRInt32 nBytes;
nEvents++;
/* XXX: This call is a hack and should be fixed */
if (PR_GetDescType(pds[j].fd) == (PRDescType) 0) {
nBytes = recv(PR_FileDesc2NativeHandle(pds[j].fd), buf,
sizeof(buf), 0);
if (nBytes == -1) {
fprintf(stderr, "recv() failed\n");
exit(1);
}
printf("Server read %d bytes from native fd %d\n",nBytes,
PR_FileDesc2NativeHandle(pds[j].fd));
#ifdef WIN32
closesocket((SOCKET)PR_FileDesc2NativeHandle(pds[j].fd));
#else
close(PR_FileDesc2NativeHandle(pds[j].fd));
#endif
PR_DestroySocketPollFd(pds[j].fd);
} else {
nBytes = PR_Read(pds[j].fd, buf, sizeof(buf));
if (nBytes == -1) {
fprintf(stderr, "PR_Read() failed\n");
exit(1);
}
PR_Close(pds[j].fd);
}
/* Just to be safe */
buf[BUF_SIZE - 1] = '\0';
printf("The server received \"%s\" from a client\n", buf);
} else if (pds[j].out_flags & PR_POLL_ERR) {
fprintf(stderr, "PR_Poll() indicates that an fd has error\n");
exit(1);
} else if (pds[j].out_flags & PR_POLL_NVAL) {
fprintf(stderr, "PR_Poll() indicates that an fd is invalid\n");
exit(1);
} else {
other_pds[nextIndex] = pds[j];
nextIndex++;
}
}
PR_ASSERT(retVal == nEvents);
/* swap */
tmp = pds;
pds = other_pds;
other_pds = tmp;
npds = nextIndex;
i += nEvents;
}
PR_DestroySocketPollFd(socket_poll_fd);
printf("All tests finished\n");
PR_Cleanup();
return 0;
}
