pjs/nsprpub/pr/tests/prpoll.c

274 строки
7.6 KiB
C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "prinit.h"
#include "prio.h"
#include "prlog.h"
#include "prprf.h"
#include "prnetdb.h"
#ifndef XP_MAC
#include "private/pprio.h"
#else
#include "pprio.h"
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
static void
clientThreadFunc(void *arg)
{
PRUint16 port = (PRUint16) arg;
PRFileDesc *sock;
PRNetAddr addr;
char buf[128];
int i;
addr.inet.family = AF_INET;
addr.inet.port = PR_htons(port);
addr.inet.ip = PR_htonl(INADDR_LOOPBACK);
PR_snprintf(buf, sizeof(buf), "%hu", port);
for (i = 0; i < 5; i++) {
sock = PR_NewTCPSocket();
PR_Connect(sock, &addr, PR_INTERVAL_NO_TIMEOUT);
PR_Write(sock, buf, sizeof(buf));
PR_Close(sock);
}
}
int main(int argc, char **argv)
{
PRFileDesc *listenSock1, *listenSock2;
PRFileDesc *badFD;
PRUint16 listenPort1, listenPort2;
PRNetAddr addr;
char buf[128];
PRThread *clientThread;
PRPollDesc pds0[10], pds1[10], *pds, *other_pds;
PRIntn npds;
PRInt32 retVal;
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 = AF_INET;
addr.inet.ip = PR_htonl(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 = AF_INET;
addr.inet.ip = PR_htonl(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);
}
PR_snprintf(buf, sizeof(buf),
"The server thread is listening on ports %hu and %hu\n\n",
listenPort1, listenPort2);
printf("%s", buf);
/* Set up the poll descriptor array */
pds = pds0;
other_pds = pds1;
memset(pds, 0, sizeof(pds));
pds[0].fd = listenSock1;
pds[0].in_flags = PR_POLL_READ;
pds[1].fd = listenSock2;
pds[1].in_flags = PR_POLL_READ;
npds = 2;
/* 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[2].fd = badFD;
pds[2].in_flags = PR_POLL_READ;
npds = 3;
PR_Close(badFD); /* make the fd bad */
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[2].out_flags);
exit(1);
}
printf("PR_Poll detected the bad fd. Test passed.\n\n");
npds = 2;
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_LOCAL_THREAD,
PR_UNJOINABLE_THREAD, 0);
if (clientThread == NULL) {
fprintf(stderr, "can't create thread\n");
exit(1);
}
printf("Two client threads are created. Each of them will\n");
printf("send data to one of the two 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");
/* 20 events total */
i = 0;
while (i < 20) {
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 = 2;
/* the two listening sockets */
for (j = 0; j < 2; 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++;
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 = 2; 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++;
nBytes = PR_Read(pds[j].fd, buf, sizeof(buf));
if (nBytes == -1) {
fprintf(stderr, "PR_Read() failed\n");
exit(1);
}
/* Just to be safe */
buf[127] = '\0';
PR_Close(pds[j].fd);
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;
}
printf("All tests finished\n");
PR_Cleanup();
return 0;
}