The Tor Browser: nsprpub/pr/tests/forktest.c@6474c204b198 (annotated)

nsprpub/pr/tests/forktest.c@6474c204b198 (annotated)

nsprpub/pr/tests/forktest.c

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- 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: forktest.c
 **
 ** Description: UNIX test for fork functions.
 **
 ** Modification History:
 ** 15-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.
 ** 12-June-97 AGarcic - Revert to return code 0 and 1, remove debug option (obsolete).
 ***********************************************************************/
 /***********************************************************************
 ** Includes
 ***********************************************************************/
 /* Used to get the command line option */
 #include "plgetopt.h"
 #include "nspr.h"
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
 PRIntn failed_already=0;
 #ifdef XP_UNIX
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
 #include <errno.h>
 static char *message = "Hello world!";
 static void
 ClientThreadFunc(void *arg)
 {
     PRNetAddr addr;
     PRFileDesc *sock = NULL;
     PRInt32 tmp = (PRInt32)arg;
     /*
      * Make sure the PR_Accept call will block
      */
     printf("Wait one second before connect\n");
     fflush(stdout);
     PR_Sleep(PR_SecondsToInterval(1));
     addr.inet.family = AF_INET;
     addr.inet.ip = PR_htonl(INADDR_ANY);
     addr.inet.port = 0;
     if ((sock = PR_NewTCPSocket()) == NULL) {
         fprintf(stderr, "failed to create TCP socket: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     if (PR_Bind(sock, &addr) != PR_SUCCESS) {
         fprintf(stderr, "PR_Bind failed: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     addr.inet.ip = PR_htonl(INADDR_LOOPBACK);
     addr.inet.port = PR_htons((PRInt16)tmp);
     printf("Connecting to port %hu\n", PR_ntohs(addr.inet.port));
     fflush(stdout);
     if (PR_Connect(sock, &addr, PR_SecondsToInterval(5)) !=
         PR_SUCCESS) {
         fprintf(stderr, "PR_Connect failed: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     printf("Writing message \"%s\"\n", message);
     fflush(stdout);
     if (PR_Send(sock, message, strlen(message) + 1, 0, PR_INTERVAL_NO_TIMEOUT) ==
         -1) {
         fprintf(stderr, "PR_Send failed: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
 finish:
     if (sock) {
         PR_Close(sock);
     }
     return;
 }
 /*
  * DoIO --
  *     This function creates a thread that acts as a client and itself.
  *     acts as a server.  Then it joins the client thread.
  */
 static void
 DoIO(void)
 {
     PRThread *clientThread;
     PRFileDesc *listenSock = NULL;
     PRFileDesc *sock = NULL;
     PRNetAddr addr;
     PRInt32 nBytes;
     char buf[128];
     listenSock = PR_NewTCPSocket();
     if (!listenSock) {
         fprintf(stderr, "failed to create a TCP socket: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     addr.inet.family = AF_INET;
     addr.inet.ip = PR_htonl(INADDR_ANY);
     addr.inet.port = 0;
     if (PR_Bind(listenSock, &addr) == PR_FAILURE) {
         fprintf(stderr, "failed to bind socket: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     if (PR_GetSockName(listenSock, &addr) == PR_FAILURE) {
         fprintf(stderr, "failed to get socket port number: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     if (PR_Listen(listenSock, 5) == PR_FAILURE) {
         fprintf(stderr, "PR_Listen failed: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     clientThread = PR_CreateThread( PR_USER_THREAD, ClientThreadFunc,
         (void *) PR_ntohs(addr.inet.port), PR_PRIORITY_NORMAL, PR_LOCAL_THREAD,
         PR_JOINABLE_THREAD, 0);
     if (clientThread == NULL) {
         fprintf(stderr, "Cannot create client thread: (%d, %d)\n",
             PR_GetError(), PR_GetOSError());
         failed_already = 1;
         goto finish;
     }
     printf("Accepting connection at port %hu\n", PR_ntohs(addr.inet.port));
     fflush(stdout);
     sock = PR_Accept(listenSock, &addr, PR_SecondsToInterval(5));
     if (!sock) {
         fprintf(stderr, "PR_Accept failed: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     nBytes = PR_Recv(sock, buf, sizeof(buf), 0, PR_INTERVAL_NO_TIMEOUT);
     if (nBytes == -1) {
         fprintf(stderr, "PR_Recv failed: error code %d\n",
             PR_GetError());
         failed_already = 1;
         goto finish;
     }
     /*
      * Make sure it has proper null byte to mark end of string
      */
     buf[sizeof(buf) - 1] = '\0';
     printf("Received \"%s\" from the client\n", buf);
     fflush(stdout);
     if (!strcmp(buf, message)) {
         PR_JoinThread(clientThread);
         printf("The message is received correctly\n");
         fflush(stdout);
     } else {
         fprintf(stderr, "The message should be \"%s\"\n",
             message);
         failed_already = 1;
     }
 finish:
     if (listenSock) {
         PR_Close(listenSock);
     }
     if (sock) {
         PR_Close(sock);
     }
     return;
 }
 #ifdef _PR_DCETHREADS
 #include <syscall.h>
 pid_t PR_UnixFork1(void)
 {
     pid_t parent = getpid();
     int rv = syscall(SYS_fork);
     if (rv == -1) {
         return (pid_t) -1;
     } else {
         /* For each process, rv is the pid of the other process */
         if (rv == parent) {
             /* the child */
             return 0;
         } else {
             /* the parent */
             return rv;
         }
     }
 }
 #elif defined(SOLARIS)
 /*
  * It seems like that in Solaris 2.4 one must call fork1() if the
  * the child process is going to use thread functions.  Solaris 2.5
  * doesn't have this problem. Calling fork() also works.
  */
 pid_t PR_UnixFork1(void)
 {
     return fork1();
 }
 #else
 pid_t PR_UnixFork1(void)
 {
     return fork();
 }
 #endif  /* PR_DCETHREADS */
 int main(int argc, char **argv)
 {
     pid_t pid;
 	int rv;
     /* main test program */
     DoIO();
     pid = PR_UnixFork1();
     if (pid  == (pid_t) -1) {
         fprintf(stderr, "Fork failed: errno %d\n", errno);
         failed_already=1;
         return 1;
     } else if (pid > 0) {
         int childStatus;
         printf("Fork succeeded.  Parent process continues.\n");
         DoIO();
         if ((rv = waitpid(pid, &childStatus, 0)) != pid) {
 #if defined(IRIX) && !defined(_PR_PTHREADS)
 			/*
 			 * nspr may handle SIGCLD signal
 			 */
 			if ((rv < 0) && (errno == ECHILD)) {
 			} else
 #endif
 			{
 				fprintf(stderr, "waitpid failed: %d\n", errno);
 				failed_already = 1;
 			}
         } else if (!WIFEXITED(childStatus)
                 || WEXITSTATUS(childStatus) != 0) {
             failed_already = 1;
         }
         printf("Parent process exits.\n");
         if (!failed_already) {
             printf("PASSED\n");
         } else {
             printf("FAILED\n");
         }
         return failed_already;
     } else {
 #if defined(IRIX) && !defined(_PR_PTHREADS)
 		extern void _PR_IRIX_CHILD_PROCESS(void);
 		_PR_IRIX_CHILD_PROCESS();
 #endif
         printf("Fork succeeded.  Child process continues.\n");
         DoIO();
         printf("Child process exits.\n");
         return failed_already;
     }
 }
 #else  /* XP_UNIX */
 int main(    int     argc,
 char   *argv[]
 )
 {
     printf("The fork test is applicable to Unix only.\n");
     return 0;
 }
 #endif  /* XP_UNIX */

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nsprpub/pr/tests/forktest.c@6474c204b198 (annotated)

nsprpub/pr/tests/forktest.c