mirror of
https://github.com/mozilla/gecko-dev.git
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297 lines
9.5 KiB
C
297 lines
9.5 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nspr.h"
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#include <stdlib.h>
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#include <string.h>
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#include "plerror.h"
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#include "plgetopt.h"
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#define BASE_PORT 9867
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#define DEFAULT_THREADS 1
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#define DEFAULT_BACKLOG 10
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#define DEFAULT_TIMEOUT 10
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#define RANDOM_RANGE 100 /* should be significantly smaller than RAND_MAX */
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typedef enum {running, stopped} Status;
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typedef struct Shared
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{
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PRLock *ml;
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PRCondVar *cv;
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PRBool passed;
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PRBool random;
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PRFileDesc *debug;
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PRIntervalTime timeout;
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PRFileDesc *listenSock;
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Status status;
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} Shared;
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static PRIntervalTime Timeout(const Shared *shared)
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{
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PRIntervalTime timeout = shared->timeout;
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if (shared->random)
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{
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PRIntervalTime half = timeout >> 1; /* one half of the interval */
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PRIntervalTime quarter = half >> 1; /* one quarter of the interval */
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/* something in [0..timeout / 2) */
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PRUint32 random = (rand() % RANDOM_RANGE) * half / RANDOM_RANGE;
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timeout = (3 * quarter) + random; /* [75..125)% */
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}
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return timeout;
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} /* Timeout */
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static void Accept(void *arg)
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{
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PRStatus rv;
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char *buffer = NULL;
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PRNetAddr clientAddr;
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Shared *shared = (Shared*)arg;
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PRInt32 recv_length = 0, flags = 0;
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PRFileDesc *clientSock;
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PRIntn toread, byte, bytes, loop = 0;
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struct Descriptor { PRInt32 length; PRUint32 checksum; } descriptor;
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do
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{
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PRUint32 checksum = 0;
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if (NULL != shared->debug)
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PR_fprintf(shared->debug, "[%d]accepting ... ", loop++);
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clientSock = PR_Accept(
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shared->listenSock, &clientAddr, Timeout(shared));
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if (clientSock != NULL)
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{
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if (NULL != shared->debug)
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PR_fprintf(shared->debug, "reading length ... ");
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bytes = PR_Recv(
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clientSock, &descriptor, sizeof(descriptor),
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flags, Timeout(shared));
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if (sizeof(descriptor) == bytes)
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{
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/* and, before doing something stupid ... */
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descriptor.length = PR_ntohl(descriptor.length);
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descriptor.checksum = PR_ntohl(descriptor.checksum);
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if (NULL != shared->debug)
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PR_fprintf(shared->debug, "%d bytes ... ", descriptor.length);
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toread = descriptor.length;
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if (recv_length < descriptor.length)
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{
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if (NULL != buffer) PR_DELETE(buffer);
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buffer = (char*)PR_MALLOC(descriptor.length);
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recv_length = descriptor.length;
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}
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for (toread = descriptor.length; toread > 0; toread -= bytes)
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{
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bytes = PR_Recv(
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clientSock, &buffer[descriptor.length - toread],
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toread, flags, Timeout(shared));
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if (-1 == bytes)
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{
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if (NULL != shared->debug)
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PR_fprintf(shared->debug, "read data failed...");
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bytes = 0;
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}
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}
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}
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else if (NULL != shared->debug)
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{
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PR_fprintf(shared->debug, "read desciptor failed...");
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descriptor.length = -1;
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}
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if (NULL != shared->debug)
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PR_fprintf(shared->debug, "closing");
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rv = PR_Shutdown(clientSock, PR_SHUTDOWN_BOTH);
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if ((PR_FAILURE == rv) && (NULL != shared->debug))
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{
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PR_fprintf(shared->debug, " failed");
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shared->passed = PR_FALSE;
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}
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rv = PR_Close(clientSock);
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if (PR_FAILURE == rv) if (NULL != shared->debug)
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{
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PR_fprintf(shared->debug, " failed");
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shared->passed = PR_FALSE;
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}
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if (descriptor.length > 0)
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{
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for (byte = 0; byte < descriptor.length; ++byte)
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{
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PRUint32 overflow = checksum & 0x80000000;
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checksum = (checksum << 1);
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if (0x00000000 != overflow) checksum += 1;
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checksum += buffer[byte];
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}
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if ((descriptor.checksum != checksum) && (NULL != shared->debug))
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{
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PR_fprintf(shared->debug, " ... data mismatch");
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shared->passed = PR_FALSE;
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}
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}
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else if (0 == descriptor.length)
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{
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PR_Lock(shared->ml);
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shared->status = stopped;
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PR_NotifyCondVar(shared->cv);
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PR_Unlock(shared->ml);
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}
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if (NULL != shared->debug)
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PR_fprintf(shared->debug, "\n");
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}
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else
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{
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if (PR_PENDING_INTERRUPT_ERROR != PR_GetError())
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{
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if (NULL != shared->debug) PL_PrintError("Accept");
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shared->passed = PR_FALSE;
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}
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}
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} while (running == shared->status);
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if (NULL != buffer) PR_DELETE(buffer);
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} /* Accept */
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PRIntn Tmoacc(PRIntn argc, char **argv)
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{
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PRStatus rv;
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PRIntn exitStatus;
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PRIntn index;
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Shared *shared;
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PLOptStatus os;
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PRThread **thread;
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PRNetAddr listenAddr;
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PRSocketOptionData sockOpt;
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PRIntn timeout = DEFAULT_TIMEOUT;
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PRIntn threads = DEFAULT_THREADS;
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PRIntn backlog = DEFAULT_BACKLOG;
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PRThreadScope thread_scope = PR_LOCAL_THREAD;
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PLOptState *opt = PL_CreateOptState(argc, argv, "dGb:t:T:R");
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shared = PR_NEWZAP(Shared);
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shared->debug = NULL;
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shared->passed = PR_TRUE;
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shared->random = PR_TRUE;
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shared->status = running;
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shared->ml = PR_NewLock();
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shared->cv = PR_NewCondVar(shared->ml);
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while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
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{
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if (PL_OPT_BAD == os) continue;
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switch (opt->option)
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{
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case 'd': /* debug mode */
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shared->debug = PR_GetSpecialFD(PR_StandardError);
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break;
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case 'G': /* use global threads */
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thread_scope = PR_GLOBAL_THREAD;
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break;
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case 'b': /* size of listen backlog */
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backlog = atoi(opt->value);
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break;
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case 't': /* number of threads doing accept */
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threads = atoi(opt->value);
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break;
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case 'T': /* timeout used for network operations */
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timeout = atoi(opt->value);
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break;
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case 'R': /* randomize the timeout values */
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shared->random = PR_TRUE;
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break;
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default:
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break;
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}
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}
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PL_DestroyOptState(opt);
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if (0 == threads) threads = DEFAULT_THREADS;
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if (0 == backlog) backlog = DEFAULT_BACKLOG;
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if (0 == timeout) timeout = DEFAULT_TIMEOUT;
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PR_STDIO_INIT();
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memset(&listenAddr, 0, sizeof(listenAddr));
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rv = PR_InitializeNetAddr(PR_IpAddrAny, BASE_PORT, &listenAddr);
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PR_ASSERT(PR_SUCCESS == rv);
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shared->timeout = PR_SecondsToInterval(timeout);
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/* First bind to the socket */
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shared->listenSock = PR_NewTCPSocket();
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if (shared->listenSock)
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{
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sockOpt.option = PR_SockOpt_Reuseaddr;
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sockOpt.value.reuse_addr = PR_TRUE;
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rv = PR_SetSocketOption(shared->listenSock, &sockOpt);
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PR_ASSERT(PR_SUCCESS == rv);
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rv = PR_Bind(shared->listenSock, &listenAddr);
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if (rv != PR_FAILURE)
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{
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rv = PR_Listen(shared->listenSock, threads + backlog);
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if (PR_SUCCESS == rv)
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{
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thread = (PRThread**)PR_CALLOC(threads * sizeof(PRThread*));
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for (index = 0; index < threads; ++index)
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{
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thread[index] = PR_CreateThread(
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PR_USER_THREAD, Accept, shared,
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PR_PRIORITY_NORMAL, thread_scope,
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PR_JOINABLE_THREAD, 0);
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PR_ASSERT(NULL != thread[index]);
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}
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PR_Lock(shared->ml);
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while (shared->status == running)
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PR_WaitCondVar(shared->cv, PR_INTERVAL_NO_TIMEOUT);
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PR_Unlock(shared->ml);
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for (index = 0; index < threads; ++index)
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{
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rv = PR_Interrupt(thread[index]);
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PR_ASSERT(PR_SUCCESS== rv);
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rv = PR_JoinThread(thread[index]);
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PR_ASSERT(PR_SUCCESS== rv);
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}
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PR_DELETE(thread);
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}
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else
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{
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if (shared->debug) PL_PrintError("Listen");
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shared->passed = PR_FALSE;
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}
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}
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else
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{
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if (shared->debug) PL_PrintError("Bind");
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shared->passed = PR_FALSE;
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}
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PR_Close(shared->listenSock);
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}
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else
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{
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if (shared->debug) PL_PrintError("Create");
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shared->passed = PR_FALSE;
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}
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PR_DestroyCondVar(shared->cv);
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PR_DestroyLock(shared->ml);
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PR_fprintf(
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PR_GetSpecialFD(PR_StandardError), "%s\n",
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((shared->passed) ? "PASSED" : "FAILED"));
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exitStatus = (shared->passed) ? 0 : 1;
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PR_DELETE(shared);
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return exitStatus;
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}
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int main(int argc, char **argv)
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{
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return (PR_VersionCheck(PR_VERSION)) ?
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PR_Initialize(Tmoacc, argc, argv, 4) : -1;
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} /* main */
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/* tmoacc */
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