The Tor Browser: nsprpub/pr/tests/intrupt.c@925c144e1f1f (annotated)

nsprpub/pr/tests/intrupt.c@925c144e1f1f (annotated)

nsprpub/pr/tests/intrupt.c

Fri, 16 Jan 2015 18:13:44 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 18:13:44 +0100
branch: TOR_BUG_9701
changeset 14: 925c144e1f1f
permissions: -rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

 /* -*- 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/. */
 /*
  * File:        intrupt.c
  * Purpose:     testing thread interrupts
  */
 #include "plgetopt.h"
 #include "prcvar.h"
 #include "prerror.h"
 #include "prinit.h"
 #include "prinrval.h"
 #include "prio.h"
 #include "prlock.h"
 #include "prlog.h"
 #include "prthread.h"
 #include "prtypes.h"
 #include "prnetdb.h"
 #include <stdio.h>
 #include <string.h>
 #define DEFAULT_TCP_PORT 12500
 static PRLock *ml = NULL;
 static PRCondVar *cv = NULL;
 static PRBool passed = PR_TRUE;
 static PRBool debug_mode = PR_FALSE;
 static PRThreadScope thread_scope = PR_LOCAL_THREAD;
 static void PR_CALLBACK AbortCV(void *arg)
 {
     PRStatus rv;
     PRThread *me = PR_GetCurrentThread();
     /* some other thread (main) is doing the interrupt */
     PR_Lock(ml);
     rv = PR_WaitCondVar(cv, PR_INTERVAL_NO_TIMEOUT);
     if (debug_mode) printf( "Expected interrupt on wait CV and ");
     if (PR_FAILURE == rv)
     {
         if (PR_PENDING_INTERRUPT_ERROR == PR_GetError())
         {
             if (debug_mode) printf("got it\n");
         }
         else
         {
             if (debug_mode) printf("got random error\n");
             passed = PR_FALSE;
         }
     }
     else
     {
         if (debug_mode) printf("got a successful completion\n");
         passed = PR_FALSE;
     }
     rv = PR_WaitCondVar(cv, 10);
     if (debug_mode)
     {
         printf(
             "Expected success on wait CV and %s\n",
             (PR_SUCCESS == rv) ? "got it" : "failed");
     }
     passed = ((PR_TRUE == passed) && (PR_SUCCESS == rv)) ? PR_TRUE : PR_FALSE;
     /* interrupt myself, then clear */
     PR_Interrupt(me);
     PR_ClearInterrupt();
     rv = PR_WaitCondVar(cv, 10);
     if (debug_mode)
     {
         printf("Expected success on wait CV and ");
         if (PR_FAILURE == rv)
         {
             printf(
                 "%s\n", (PR_PENDING_INTERRUPT_ERROR == PR_GetError()) ?
                 "got interrupted" : "a random failure");
         }
         printf("got it\n");
     }
     passed = ((PR_TRUE == passed) && (PR_SUCCESS == rv)) ? PR_TRUE : PR_FALSE;
     /* set, then wait - interrupt - then wait again */
     PR_Interrupt(me);
     rv = PR_WaitCondVar(cv, 10);
     if (debug_mode) printf( "Expected interrupt on wait CV and ");
     if (PR_FAILURE == rv)
     {
         if (PR_PENDING_INTERRUPT_ERROR == PR_GetError())
         {
             if (debug_mode) printf("got it\n");
         }
         else
         {
             if (debug_mode) printf("failed\n");
             passed = PR_FALSE;
         }
     }
     else
     {
         if (debug_mode) printf("got a successful completion\n");
         passed = PR_FALSE;
     }
     rv = PR_WaitCondVar(cv, 10);
     if (debug_mode)
     {
         printf(
             "Expected success on wait CV and %s\n",
             (PR_SUCCESS == rv) ? "got it" : "failed");
     }
     passed = ((PR_TRUE == passed) && (PR_SUCCESS == rv)) ? PR_TRUE : PR_FALSE;
     PR_Unlock(ml);
 }  /* AbortCV */
 static void PR_CALLBACK AbortIO(void *arg)
 {
     PRStatus rv;
     PR_Sleep(PR_SecondsToInterval(2));
     rv = PR_Interrupt((PRThread*)arg);
     PR_ASSERT(PR_SUCCESS == rv);
 }  /* AbortIO */
 static void PR_CALLBACK AbortJoin(void *arg)
 {
 }  /* AbortJoin */
 static void setup_listen_socket(PRFileDesc **listner, PRNetAddr *netaddr)
 {
     PRStatus rv;
     PRInt16 port = DEFAULT_TCP_PORT;
     *listner = PR_NewTCPSocket();
     PR_ASSERT(*listner != NULL);
     memset(netaddr, 0, sizeof(*netaddr));
     (*netaddr).inet.ip = PR_htonl(PR_INADDR_ANY);
     (*netaddr).inet.family = PR_AF_INET;
     do
     {
         (*netaddr).inet.port = PR_htons(port);
         rv = PR_Bind(*listner, netaddr);
         port += 1;
         PR_ASSERT(port < (DEFAULT_TCP_PORT + 10));
     } while (PR_FAILURE == rv);
     rv = PR_Listen(*listner, 5);
 	if (PR_GetSockName(*listner, netaddr) < 0) {
 		if (debug_mode) printf("intrupt: ERROR - PR_GetSockName failed\n");
 		passed = PR_FALSE;
 		return;
 	}
 }
 static void PR_CALLBACK IntrBlock(void *arg)
 {
     PRStatus rv;
     PRNetAddr netaddr;
     PRFileDesc *listner;
     /* some other thread (main) is doing the interrupt */
 	/* block the interrupt */
 	PR_BlockInterrupt();
     PR_Lock(ml);
     rv = PR_WaitCondVar(cv, PR_SecondsToInterval(4));
 	PR_Unlock(ml);
     if (debug_mode)
     {
         printf("Expected success on wait CV and ");
         if (PR_FAILURE == rv)
         {
             printf(
                 "%s\n", (PR_PENDING_INTERRUPT_ERROR == PR_GetError()) ?
                 "got interrupted" : "got a random failure");
         } else
         	printf("got it\n");
     }
     passed = ((PR_TRUE == passed) && (PR_SUCCESS == rv)) ? PR_TRUE : PR_FALSE;
 	setup_listen_socket(&listner, &netaddr);
 	PR_UnblockInterrupt();
     if (PR_Accept(listner, &netaddr, PR_INTERVAL_NO_TIMEOUT) == NULL)
     {
         PRInt32 error = PR_GetError();
         if (debug_mode) printf("Expected interrupt on PR_Accept() and ");
         if (PR_PENDING_INTERRUPT_ERROR == error)
         {
             if (debug_mode) printf("got it\n");
         }
         else
         {
             if (debug_mode) printf("failed\n");
             passed = PR_FALSE;
         }
     }
     else
     {
         if (debug_mode) printf("Failed to interrupt PR_Accept()\n");
         passed = PR_FALSE;
     }
     (void)PR_Close(listner); listner = NULL;
 }  /* TestIntrBlock */
 void PR_CALLBACK Intrupt(void *arg)
 {
     PRStatus rv;
     PRNetAddr netaddr;
     PRFileDesc *listner;
     PRThread *abortCV, *abortIO, *abortJoin, *intrBlock;
     ml = PR_NewLock();
     cv = PR_NewCondVar(ml);
     /* Part I */
     if (debug_mode) printf("Part I\n");
     abortCV = PR_CreateThread(
         PR_USER_THREAD, AbortCV, 0, PR_PRIORITY_NORMAL,
         thread_scope, PR_JOINABLE_THREAD, 0);
     PR_Sleep(PR_SecondsToInterval(2));
     rv = PR_Interrupt(abortCV);
     PR_ASSERT(PR_SUCCESS == rv);
     rv = PR_JoinThread(abortCV);
     PR_ASSERT(PR_SUCCESS == rv);
     /* Part II */
     if (debug_mode) printf("Part II\n");
     abortJoin = PR_CreateThread(
         PR_USER_THREAD, AbortJoin, 0, PR_PRIORITY_NORMAL,
         thread_scope, PR_JOINABLE_THREAD, 0);
     PR_Sleep(PR_SecondsToInterval(2));
     if (debug_mode) printf("Expecting to interrupt an exited thread ");
     rv = PR_Interrupt(abortJoin);
     PR_ASSERT(PR_SUCCESS == rv);
     rv = PR_JoinThread(abortJoin);
     PR_ASSERT(PR_SUCCESS == rv);
     if (debug_mode) printf("and succeeded\n");
     /* Part III */
     if (debug_mode) printf("Part III\n");
 	setup_listen_socket(&listner, &netaddr);
     abortIO = PR_CreateThread(
         PR_USER_THREAD, AbortIO, PR_GetCurrentThread(), PR_PRIORITY_NORMAL,
         thread_scope, PR_JOINABLE_THREAD, 0);
     if (PR_Accept(listner, &netaddr, PR_INTERVAL_NO_TIMEOUT) == NULL)
     {
         PRInt32 error = PR_GetError();
         if (debug_mode) printf("Expected interrupt on PR_Accept() and ");
         if (PR_PENDING_INTERRUPT_ERROR == error)
         {
             if (debug_mode) printf("got it\n");
         }
         else
         {
             if (debug_mode) printf("failed\n");
             passed = PR_FALSE;
         }
     }
     else
     {
         if (debug_mode) printf("Failed to interrupt PR_Accept()\n");
         passed = PR_FALSE;
     }
     (void)PR_Close(listner); listner = NULL;
     rv = PR_JoinThread(abortIO);
     PR_ASSERT(PR_SUCCESS == rv);
     /* Part VI */
     if (debug_mode) printf("Part VI\n");
     intrBlock = PR_CreateThread(
         PR_USER_THREAD, IntrBlock, 0, PR_PRIORITY_NORMAL,
         thread_scope, PR_JOINABLE_THREAD, 0);
     PR_Sleep(PR_SecondsToInterval(2));
     rv = PR_Interrupt(intrBlock);
     PR_ASSERT(PR_SUCCESS == rv);
     rv = PR_JoinThread(intrBlock);
     PR_ASSERT(PR_SUCCESS == rv);
     PR_DestroyCondVar(cv);
     PR_DestroyLock(ml);
 }  /* Intrupt */
 int main(int argc, char **argv)
 {
     PRThread *intrupt;
 	PLOptStatus os;
   	PLOptState *opt = PL_CreateOptState(argc, argv, "dG");
 	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
     {
 		if (PL_OPT_BAD == os) continue;
         switch (opt->option)
         {
         case 'd':  /* debug mode */
 			debug_mode = PR_TRUE;
             break;
         case 'G':  /* use global threads */
             thread_scope = PR_GLOBAL_THREAD;
             break;
         }
     }
 	PL_DestroyOptState(opt);
     PR_STDIO_INIT();
     intrupt = PR_CreateThread(
         PR_USER_THREAD, Intrupt, NULL, PR_PRIORITY_NORMAL,
         thread_scope, PR_JOINABLE_THREAD, 0);
     if (intrupt == NULL) {
         fprintf(stderr, "cannot create thread\n");
         passed = PR_FALSE;
     } else {
         PRStatus rv;
         rv = PR_JoinThread(intrupt);
         PR_ASSERT(rv == PR_SUCCESS);
     }
     printf("%s\n", ((passed) ? "PASSED" : "FAILED"));
 	return ((passed) ? 0 : 1);
 }  /* main */
 /* intrupt.c */

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nsprpub/pr/tests/intrupt.c@925c144e1f1f (annotated)

nsprpub/pr/tests/intrupt.c