The Tor Browser: nsprpub/pr/tests/poll_nm.c@44a2da4a2ab2 (annotated)

nsprpub/pr/tests/poll_nm.c@44a2da4a2ab2 (annotated)

nsprpub/pr/tests/poll_nm.c

Fri, 16 Jan 2015 04:50:19 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 04:50:19 +0100
branch: TOR_BUG_9701
changeset 13: 44a2da4a2ab2
permissions: -rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /***********************************************************************
 **
 ** Name: prpoll_norm.c
 **
 ** Description: This program tests PR_Poll with sockets.
 **              Normal operation are tested
 **
 ** Modification History:
 ** 19-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
 **	         The debug mode will print all of the printfs associated with this test.
 **			 The regress mode will be the default mode. Since the regress tool limits
 **           the output to a one line status:PASS or FAIL,all of the printf statements
 **			 have been handled with an if (debug_mode) statement.
 ** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
 **			recognize the return code from tha main program.
 ***********************************************************************/
 /***********************************************************************
 ** Includes
 ***********************************************************************/
 /* Used to get the command line option */
 #include "plgetopt.h"
 #include "prinit.h"
 #include "prio.h"
 #include "prlog.h"
 #include "prprf.h"
 #include "prnetdb.h"
 #include "obsolete/probslet.h"
 #include "private/pprio.h"
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 PRIntn failed_already=0;
 PRIntn debug_mode;
 #define NUM_ITERATIONS 5
 static void PR_CALLBACK
 clientThreadFunc(void *arg)
 {
     PRUintn port = (PRUintn) arg;
     PRFileDesc *sock;
     PRNetAddr addr;
     char buf[128];
     int i;
     PRStatus sts;
     PRInt32 n;
     addr.inet.family = PR_AF_INET;
     addr.inet.port = PR_htons((PRUint16)port);
     addr.inet.ip = PR_htonl(PR_INADDR_LOOPBACK);
     memset(buf, 0, sizeof(buf));
     PR_snprintf(buf, sizeof(buf), "%hu", port);
     for (i = 0; i < NUM_ITERATIONS; i++) {
 	sock = PR_NewTCPSocket();
 	PR_ASSERT(sock != NULL);
     sts = PR_Connect(sock, &addr, PR_INTERVAL_NO_TIMEOUT);
 	PR_ASSERT(sts == PR_SUCCESS);
 	n = PR_Write(sock, buf, sizeof(buf));
 	PR_ASSERT(n >= 0);
 	sts = PR_Close(sock);
 	PR_ASSERT(sts == PR_SUCCESS);
     }
 }
 int main(int argc, char **argv)
 {
     PRFileDesc *listenSock1 = NULL, *listenSock2 = NULL;
     PRUint16 listenPort1, listenPort2;
     PRNetAddr addr;
     char buf[128];
     PRThread *clientThread;
     PRPollDesc pds0[20], pds1[20], *pds, *other_pds;
     PRIntn npds;
     PRInt32 retVal;
     PRIntn i, j;
     PRSocketOptionData optval;
 	/* The command line argument: -d is used to determine if the test is being run
 	in debug mode. The regress tool requires only one line output:PASS or FAIL.
 	All of the printfs associated with this test has been handled with a if (debug_mode)
 	test.
 	Usage: test_name -d
 	*/
 	PLOptStatus os;
 	PLOptState *opt = PL_CreateOptState(argc, argv, "d:");
 	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
     {
 		if (PL_OPT_BAD == os) continue;
         switch (opt->option)
         {
         case 'd':  /* debug mode */
 			debug_mode = 1;
             break;
          default:
             break;
         }
     }
 	PL_DestroyOptState(opt);
  /* main test */
     PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
     PR_STDIO_INIT();
     if (debug_mode) {
 		printf("This program tests PR_Poll with sockets.\n");
 		printf("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");
 	failed_already=1;
 	goto exit_now;
     }
     memset(&addr, 0, sizeof(addr));
     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");
 	failed_already=1;
 	goto exit_now;
     }
     if (PR_GetSockName(listenSock1, &addr) == PR_FAILURE) {
 	fprintf(stderr, "PR_GetSockName failed\n");
 	failed_already=1;
 	goto exit_now;
     }
     listenPort1 = PR_ntohs(addr.inet.port);
     optval.option = PR_SockOpt_Nonblocking;
     optval.value.non_blocking = PR_TRUE;
     PR_SetSocketOption(listenSock1, &optval);
     if (PR_Listen(listenSock1, 5) == PR_FAILURE) {
 	fprintf(stderr, "Can't listen on a socket\n");
 	failed_already=1;
 	goto exit_now;
     }
     if ((listenSock2  = PR_NewTCPSocket()) == NULL) {
 	fprintf(stderr, "Can't create a new TCP socket\n");
 	failed_already=1;
 	goto exit_now;
     }
     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");
 	failed_already=1;
 	goto exit_now;
     }
     if (PR_GetSockName(listenSock2, &addr) == PR_FAILURE) {
 	fprintf(stderr, "PR_GetSockName failed\n");
 	failed_already=1;
 	goto exit_now;
     }
     listenPort2 = PR_ntohs(addr.inet.port);
     PR_SetSocketOption(listenSock2, &optval);
     if (PR_Listen(listenSock2, 5) == PR_FAILURE) {
 	fprintf(stderr, "Can't listen on a socket\n");
 	failed_already=1;
 	goto exit_now;
     }
     PR_snprintf(buf, sizeof(buf),
 	    "The server thread is listening on ports %hu and %hu\n\n",
 	    listenPort1, listenPort2);
     if (debug_mode) 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;
     /* Add some unused entries to test if they are ignored by PR_Poll() */
     memset(&pds[2], 0, sizeof(pds[2]));
     memset(&pds[3], 0, sizeof(pds[3]));
     memset(&pds[4], 0, sizeof(pds[4]));
     npds = 5;
     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");
 	failed_already=1;
 	goto exit_now;
     }
     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");
 	failed_already=1;
 	goto exit_now;
     }
     if (debug_mode) {
 		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");
 	}
     /* two clients, three events per iteration: accept, read, close */
     i = 0;
     while (i < 2 * 3 * NUM_ITERATIONS) {
 	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");
 		failed_already=1;
 	    goto exit_now;
 	}
 	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");
 			failed_already=1;
 		    goto exit_now;
 		}
 		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");
 		failed_already=1;
 		goto exit_now;
 	    } 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));
 		failed_already=1;
 		goto exit_now;
 	    }
 	}
 	for (j = 2; j < npds; j++) {
             if (NULL == pds[j].fd) {
                 /*
                  * Keep the unused entries in the poll descriptor array
                  * for testing purposes.
                  */
                 other_pds[nextIndex] = pds[j];
                 nextIndex++;
                 continue;
             }
 	    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 nAvail;
 		PRInt32 nRead;
 		nEvents++;
                 nAvail = PR_Available(pds[j].fd);
 		nRead = PR_Read(pds[j].fd, buf, sizeof(buf));
                 PR_ASSERT(nAvail == nRead);
 		if (nRead == -1) {
 		    fprintf(stderr, "PR_Read() failed\n");
 			failed_already=1;
 		    goto exit_now;
                 } else if (nRead == 0) {
                     PR_Close(pds[j].fd);
                     continue;
                 } else {
                     /* Just to be safe */
                     buf[127] = '\0';
                     if (debug_mode) 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");
 		failed_already=1;
 		goto exit_now;
 	    } else if (pds[j].out_flags & PR_POLL_NVAL) {
 		fprintf(stderr, "PR_Poll() indicates that an fd is invalid\n");
 		failed_already=1;
 		goto exit_now;
 	    }
             other_pds[nextIndex] = pds[j];
             nextIndex++;
 	}
 	PR_ASSERT(retVal == nEvents);
 	/* swap */
 	tmp = pds;
 	pds = other_pds;
 	other_pds = tmp;
 	npds = nextIndex;
 	i += nEvents;
     }
     if (debug_mode) printf("Tests passed\n");
 exit_now:
     if (listenSock1) {
         PR_Close(listenSock1);
     }
     if (listenSock2) {
         PR_Close(listenSock2);
     }
     PR_Cleanup();
 	if(failed_already)
 		return 1;
 	else
 		return 0;
 }

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nsprpub/pr/tests/poll_nm.c@44a2da4a2ab2 (annotated)

nsprpub/pr/tests/poll_nm.c