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tenfourfox/nsprpub/pr/tests/intrupt.c
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

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/* -*- 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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