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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
#include "nspr.h"
#include <stdlib.h>
#include <string.h>
#include "plerror.h"
#include "plgetopt.h"
#ifdef DEBUG
#define PORT_INC_DO +100
#else
#define PORT_INC_DO
#endif
#ifdef IS_64
#define PORT_INC_3264 +200
#else
#define PORT_INC_3264
#endif
#define BASE_PORT 9867 PORT_INC_DO PORT_INC_3264
#define DEFAULT_THREADS 1
#define DEFAULT_BACKLOG 10
#define DEFAULT_TIMEOUT 10
#define RANDOM_RANGE 100 /* should be significantly smaller than RAND_MAX */
typedef enum {running, stopped} Status;
typedef struct Shared
{
PRLock *ml;
PRCondVar *cv;
PRBool passed;
PRBool random;
PRFileDesc *debug;
PRIntervalTime timeout;
PRFileDesc *listenSock;
Status status;
} Shared;
static PRIntervalTime Timeout(const Shared *shared)
{
PRIntervalTime timeout = shared->timeout;
if (shared->random)
{
PRIntervalTime half = timeout >> 1; /* one half of the interval */
PRIntervalTime quarter = half >> 1; /* one quarter of the interval */
/* something in [0..timeout / 2) */
PRUint32 random = (rand() % RANDOM_RANGE) * half / RANDOM_RANGE;
timeout = (3 * quarter) + random; /* [75..125)% */
}
return timeout;
} /* Timeout */
static void Accept(void *arg)
{
PRStatus rv;
char *buffer = NULL;
PRNetAddr clientAddr;
Shared *shared = (Shared*)arg;
PRInt32 recv_length = 0, flags = 0;
PRFileDesc *clientSock;
PRIntn toread, byte, bytes, loop = 0;
struct Descriptor {
PRInt32 length;
PRUint32 checksum;
} descriptor;
do
{
PRUint32 checksum = 0;
if (NULL != shared->debug) {
PR_fprintf(shared->debug, "[%d]accepting ... ", loop++);
}
clientSock = PR_Accept(
shared->listenSock, &clientAddr, Timeout(shared));
if (clientSock != NULL)
{
if (NULL != shared->debug) {
PR_fprintf(shared->debug, "reading length ... ");
}
bytes = PR_Recv(
clientSock, &descriptor, sizeof(descriptor),
flags, Timeout(shared));
if (sizeof(descriptor) == bytes)
{
/* and, before doing something stupid ... */
descriptor.length = PR_ntohl(descriptor.length);
descriptor.checksum = PR_ntohl(descriptor.checksum);
if (NULL != shared->debug) {
PR_fprintf(shared->debug, "%d bytes ... ", descriptor.length);
}
toread = descriptor.length;
if (recv_length < descriptor.length)
{
if (NULL != buffer) {
PR_DELETE(buffer);
}
buffer = (char*)PR_MALLOC(descriptor.length);
recv_length = descriptor.length;
}
for (toread = descriptor.length; toread > 0; toread -= bytes)
{
bytes = PR_Recv(
clientSock, &buffer[descriptor.length - toread],
toread, flags, Timeout(shared));
if (-1 == bytes)
{
if (NULL != shared->debug) {
PR_fprintf(shared->debug, "read data failed...");
}
bytes = 0;
}
}
}
else if (NULL != shared->debug)
{
PR_fprintf(shared->debug, "read desciptor failed...");
descriptor.length = -1;
}
if (NULL != shared->debug) {
PR_fprintf(shared->debug, "closing");
}
rv = PR_Shutdown(clientSock, PR_SHUTDOWN_BOTH);
if ((PR_FAILURE == rv) && (NULL != shared->debug))
{
PR_fprintf(shared->debug, " failed");
shared->passed = PR_FALSE;
}
rv = PR_Close(clientSock);
if (PR_FAILURE == rv) if (NULL != shared->debug)
{
PR_fprintf(shared->debug, " failed");
shared->passed = PR_FALSE;
}
if (descriptor.length > 0)
{
for (byte = 0; byte < descriptor.length; ++byte)
{
PRUint32 overflow = checksum & 0x80000000;
checksum = (checksum << 1);
if (0x00000000 != overflow) {
checksum += 1;
}
checksum += buffer[byte];
}
if ((descriptor.checksum != checksum) && (NULL != shared->debug))
{
PR_fprintf(shared->debug, " ... data mismatch");
shared->passed = PR_FALSE;
}
}
else if (0 == descriptor.length)
{
PR_Lock(shared->ml);
shared->status = stopped;
PR_NotifyCondVar(shared->cv);
PR_Unlock(shared->ml);
}
if (NULL != shared->debug) {
PR_fprintf(shared->debug, "\n");
}
}
else
{
if (PR_PENDING_INTERRUPT_ERROR != PR_GetError())
{
if (NULL != shared->debug) {
PL_PrintError("Accept");
}
shared->passed = PR_FALSE;
}
}
} while (running == shared->status);
if (NULL != buffer) {
PR_DELETE(buffer);
}
} /* Accept */
PRIntn Tmoacc(PRIntn argc, char **argv)
{
PRStatus rv;
PRIntn exitStatus;
PRIntn index;
Shared *shared;
PLOptStatus os;
PRThread **thread;
PRNetAddr listenAddr;
PRSocketOptionData sockOpt;
PRIntn timeout = DEFAULT_TIMEOUT;
PRIntn threads = DEFAULT_THREADS;
PRIntn backlog = DEFAULT_BACKLOG;
PRThreadScope thread_scope = PR_LOCAL_THREAD;
PLOptState *opt = PL_CreateOptState(argc, argv, "dGb:t:T:R");
shared = PR_NEWZAP(Shared);
shared->debug = NULL;
shared->passed = PR_TRUE;
shared->random = PR_TRUE;
shared->status = running;
shared->ml = PR_NewLock();
shared->cv = PR_NewCondVar(shared->ml);
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
{
if (PL_OPT_BAD == os) {
continue;
}
switch (opt->option)
{
case 'd': /* debug mode */
shared->debug = PR_GetSpecialFD(PR_StandardError);
break;
case 'G': /* use global threads */
thread_scope = PR_GLOBAL_THREAD;
break;
case 'b': /* size of listen backlog */
backlog = atoi(opt->value);
break;
case 't': /* number of threads doing accept */
threads = atoi(opt->value);
break;
case 'T': /* timeout used for network operations */
timeout = atoi(opt->value);
break;
case 'R': /* randomize the timeout values */
shared->random = PR_TRUE;
break;
default:
break;
}
}
PL_DestroyOptState(opt);
if (0 == threads) {
threads = DEFAULT_THREADS;
}
if (0 == backlog) {
backlog = DEFAULT_BACKLOG;
}
if (0 == timeout) {
timeout = DEFAULT_TIMEOUT;
}
PR_STDIO_INIT();
memset(&listenAddr, 0, sizeof(listenAddr));
rv = PR_InitializeNetAddr(PR_IpAddrAny, BASE_PORT, &listenAddr);
PR_ASSERT(PR_SUCCESS == rv);
shared->timeout = PR_SecondsToInterval(timeout);
/* First bind to the socket */
shared->listenSock = PR_NewTCPSocket();
if (shared->listenSock)
{
sockOpt.option = PR_SockOpt_Reuseaddr;
sockOpt.value.reuse_addr = PR_TRUE;
rv = PR_SetSocketOption(shared->listenSock, &sockOpt);
PR_ASSERT(PR_SUCCESS == rv);
rv = PR_Bind(shared->listenSock, &listenAddr);
if (rv != PR_FAILURE)
{
rv = PR_Listen(shared->listenSock, threads + backlog);
if (PR_SUCCESS == rv)
{
thread = (PRThread**)PR_CALLOC(threads * sizeof(PRThread*));
for (index = 0; index < threads; ++index)
{
thread[index] = PR_CreateThread(
PR_USER_THREAD, Accept, shared,
PR_PRIORITY_NORMAL, thread_scope,
PR_JOINABLE_THREAD, 0);
PR_ASSERT(NULL != thread[index]);
}
PR_Lock(shared->ml);
while (shared->status == running) {
PR_WaitCondVar(shared->cv, PR_INTERVAL_NO_TIMEOUT);
}
PR_Unlock(shared->ml);
for (index = 0; index < threads; ++index)
{
rv = PR_Interrupt(thread[index]);
PR_ASSERT(PR_SUCCESS== rv);
rv = PR_JoinThread(thread[index]);
PR_ASSERT(PR_SUCCESS== rv);
}
PR_DELETE(thread);
}
else
{
if (shared->debug) {
PL_PrintError("Listen");
}
shared->passed = PR_FALSE;
}
}
else
{
if (shared->debug) {
PL_PrintError("Bind");
}
shared->passed = PR_FALSE;
}
PR_Close(shared->listenSock);
}
else
{
if (shared->debug) {
PL_PrintError("Create");
}
shared->passed = PR_FALSE;
}
PR_DestroyCondVar(shared->cv);
PR_DestroyLock(shared->ml);
PR_fprintf(
PR_GetSpecialFD(PR_StandardError), "%s\n",
((shared->passed) ? "PASSED" : "FAILED"));
exitStatus = (shared->passed) ? 0 : 1;
PR_DELETE(shared);
return exitStatus;
}
int main(int argc, char **argv)
{
return (PR_VersionCheck(PR_VERSION)) ?
PR_Initialize(Tmoacc, argc, argv, 4) : -1;
} /* main */
/* tmoacc */