mirror of
https://github.com/mozilla/gecko-dev.git
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289 lines
8.2 KiB
C++
289 lines
8.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsIBuffer.h"
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#include "nsIThread.h"
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#include "nsIComponentManager.h"
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#include "nsIServiceManager.h"
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#include "nsAutoLock.h"
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#include "nsIPageManager.h"
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#include "nsCRT.h"
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#include "prprf.h"
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#include "prmem.h"
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#include "prinrval.h"
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#include <stdio.h>
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class Reader : public nsIRunnable {
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public:
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NS_DECL_ISUPPORTS
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NS_IMETHOD Run() {
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nsresult rv;
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nsAutoCMonitor mon(this);
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char buf[100];
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PRUint32 readCnt;
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const char* readBuf;
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rv = mReadBuffer->GetReadSegment(0, &readBuf, &readCnt);
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if (NS_FAILED(rv)) return rv;
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while (!(mDone && readCnt == 0)) {
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rv = mReadBuffer->Read(buf, 99, &readCnt);
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if (NS_FAILED(rv)) {
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printf("read failed\n");
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return rv;
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}
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if (readCnt == 0) {
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if (mDone)
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break;
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mon.Notify(); // wake up writer
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mon.Wait(); // wait for more
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rv = mReadBuffer->GetReadSegment(0, &readBuf, &readCnt);
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if (NS_FAILED(rv)) return rv;
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}
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else {
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// buf[readCnt] = 0;
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// printf(buf);
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mBytesRead += readCnt;
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}
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}
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// printf("reader done\n");
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return rv;
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}
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Reader(nsIBuffer* readBuffer)
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: mReadBuffer(readBuffer), mBytesRead(0), mDone(PR_FALSE) {
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NS_INIT_REFCNT();
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NS_ADDREF(mReadBuffer);
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}
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virtual ~Reader() {
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NS_RELEASE(mReadBuffer);
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printf("bytes read = %d\n", mBytesRead);
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}
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void SetEOF() {
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mDone = PR_TRUE;
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}
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PRUint32 GetBytesRead() { return mBytesRead; }
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protected:
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nsIBuffer* mReadBuffer;
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PRUint32 mBytesRead;
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PRBool mDone;
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};
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NS_IMPL_ISUPPORTS(Reader, nsIRunnable::GetIID());
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////////////////////////////////////////////////////////////////////////////////
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#define ITERATIONS 20000
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nsresult
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WriteMessages(nsIBuffer* buffer)
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{
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nsresult rv;
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nsIThread* thread;
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Reader* reader = new Reader(buffer);
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NS_ADDREF(reader);
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rv = NS_NewThread(&thread, reader);
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if (NS_FAILED(rv)) {
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printf("failed to create thread\n");
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return rv;
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}
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char* mem = nsnull;
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char* buf = nsnull;
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PRUint32 total = 0;
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PRUint32 cnt = 0;
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PRUint32 bufLen = 0;
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PRIntervalTime start = PR_IntervalNow();
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for (PRUint32 i = 0; i < ITERATIONS;) {
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if (bufLen == 0) {
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PR_FREEIF(mem);
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mem = PR_smprintf("%d. My hovercraft is full of eels.\n", i);
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buf = mem;
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NS_ASSERTION(buf, "out of memory");
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bufLen = nsCRT::strlen(buf);
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i++;
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}
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rv = buffer->Write(buf, bufLen, &cnt);
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if (NS_FAILED(rv)) {
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printf("failed to write %d\n", i);
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return rv;
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}
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if (cnt == 0) {
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nsAutoCMonitor mon(reader);
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mon.Notify(); // wake up reader
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mon.Wait(); // and wait for reader to read all
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}
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else {
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total += cnt;
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buf += cnt;
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bufLen -= cnt;
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}
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}
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PR_FREEIF(mem);
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{
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reader->SetEOF();
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nsAutoCMonitor mon(reader);
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mon.Notify(); // wake up reader
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}
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if (NS_FAILED(rv)) return rv;
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rv = thread->Join();
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PRIntervalTime end = PR_IntervalNow();
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if (NS_FAILED(rv)) return rv;
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printf("writer done: %d bytes %d ms\n", total,
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PR_IntervalToMilliseconds(end - start));
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NS_ASSERTION(reader->GetBytesRead() == total, "didn't read everything");
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NS_RELEASE(reader);
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NS_RELEASE(thread);
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NS_RELEASE(buffer);
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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nsresult
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TestMallocBuffers(PRUint32 growByPages, PRUint32 pageCount)
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{
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nsresult rv;
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nsIBuffer* buffer;
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printf("Malloc Buffer Test: %d pages, grow by %d pages\n",
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pageCount, growByPages);
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rv = NS_NewBuffer(&buffer,
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NS_PAGEMGR_PAGE_SIZE * growByPages,
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NS_PAGEMGR_PAGE_SIZE * pageCount,
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nsnull);
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if (NS_FAILED(rv)) {
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printf("failed to create buffer\n");
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return rv;
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}
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rv = WriteMessages(buffer);
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return rv;
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}
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nsresult
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TestPageBuffers(PRUint32 growByPages, PRUint32 pageCount)
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{
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nsresult rv;
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nsIBuffer* buffer;
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printf("Page Buffer Test: %d pages, grow by %d pages\n",
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pageCount, growByPages);
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rv = NS_NewPageBuffer(&buffer,
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NS_PAGEMGR_PAGE_SIZE * growByPages,
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NS_PAGEMGR_PAGE_SIZE * pageCount,
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nsnull);
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if (NS_FAILED(rv)) {
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printf("failed to create buffer\n");
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return rv;
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}
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rv = WriteMessages(buffer);
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return rv;
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}
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////////////////////////////////////////////////////////////////////////////////
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void
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TestSearch(const char* delim, PRUint32 segDataSize)
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{
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nsresult rv;
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nsIBuffer* buffer;
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// need at least 2 segments to test boundary conditions:
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PRUint32 bufDataSize = segDataSize * 2;
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PRUint32 segSize = segDataSize + nsIBuffer::SEGMENT_OVERHEAD;
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PRUint32 bufSize = segSize * 2;
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rv = NS_NewBuffer(&buffer, segSize, bufSize, nsnull);
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NS_ASSERTION(NS_SUCCEEDED(rv), "NewBuffer failed");
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PRUint32 i, amt;
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PRUint32 delimLen = nsCRT::strlen(delim);
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for (i = 0; i < bufDataSize; i++) {
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// first fill the buffer
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for (PRUint32 j = 0; j < i; j++) {
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rv = buffer->Write("-", 1, &amt);
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NS_ASSERTION(NS_SUCCEEDED(rv) && amt == 1, "Write failed");
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}
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rv = buffer->Write(delim, delimLen, &amt);
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NS_ASSERTION(NS_SUCCEEDED(rv), "Write failed");
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if (i + amt < bufDataSize) {
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for (PRUint32 j = i + amt; j < bufDataSize; j++) {
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rv = buffer->Write("+", 1, &amt);
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NS_ASSERTION(NS_SUCCEEDED(rv) && amt == 1, "Write failed");
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}
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}
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// now search for the delimiter
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PRBool found;
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PRUint32 offset;
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rv = buffer->Search(delim, PR_FALSE, &found, &offset);
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NS_ASSERTION(NS_SUCCEEDED(rv), "Search failed");
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// print the results
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char* bufferContents = new char[bufDataSize + 1];
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rv = buffer->Read(bufferContents, bufDataSize, &amt);
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NS_ASSERTION(NS_SUCCEEDED(rv) && amt == bufDataSize, "Read failed");
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bufferContents[bufDataSize] = '\0';
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printf("Buffer: %s\nDelim: %s %s offset: %d\n", bufferContents,
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delim, (found ? "found" : "not found"), offset);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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int
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main()
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{
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nsresult rv;
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nsIServiceManager* servMgr;
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rv = NS_InitXPCOM(&servMgr);
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if (NS_FAILED(rv)) return rv;
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rv = TestMallocBuffers(1, 1);
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NS_ASSERTION(NS_SUCCEEDED(rv), "TestMallocBuffers failed");
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rv = TestPageBuffers(1, 1);
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NS_ASSERTION(NS_SUCCEEDED(rv), "TestPageBuffers failed");
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rv = TestMallocBuffers(1, 10);
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NS_ASSERTION(NS_SUCCEEDED(rv), "TestMallocBuffers failed");
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rv = TestPageBuffers(1, 10);
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NS_ASSERTION(NS_SUCCEEDED(rv), "TestPageBuffers failed");
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rv = TestMallocBuffers(5, 10);
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NS_ASSERTION(NS_SUCCEEDED(rv), "TestMallocBuffers failed");
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rv = TestPageBuffers(5, 10);
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NS_ASSERTION(NS_SUCCEEDED(rv), "TestPageBuffers failed");
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TestSearch("foo", 8);
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TestSearch("bar", 6);
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TestSearch("baz", 2);
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return 0;
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}
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////////////////////////////////////////////////////////////////////////////////
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