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pjs/xpcom/tests/TestPipes.cpp

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C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Pierre Phaneuf <pp@ludusdesign.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsIThread.h"
#include "nsIRunnable.h"
#include "nsIInputStream.h"
#include "nsIOutputStream.h"
#include "nsIServiceManager.h"
#include "nsThreadUtils.h"
#include "prprf.h"
#include "prinrval.h"
#include "plstr.h"
#include "nsCRT.h"
#include "nsCOMPtr.h"
#include <stdio.h>
#include "nsIPipe.h" // new implementation
#include "nsAutoLock.h"
#include <stdlib.h> // for rand
#define KEY 0xa7
#define ITERATIONS 33333
char kTestPattern[] = "My hovercraft is full of eels.\n";
PRBool gTrace = PR_FALSE;
static nsresult
WriteAll(nsIOutputStream *os, const char *buf, PRUint32 bufLen, PRUint32 *lenWritten)
{
const char *p = buf;
*lenWritten = 0;
while (bufLen) {
PRUint32 n;
nsresult rv = os->Write(p, bufLen, &n);
if (NS_FAILED(rv)) return rv;
p += n;
bufLen -= n;
*lenWritten += n;
}
return NS_OK;
}
class nsReceiver : public nsIRunnable {
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Run() {
nsresult rv;
char buf[101];
PRUint32 count;
PRIntervalTime start = PR_IntervalNow();
while (PR_TRUE) {
rv = mIn->Read(buf, 100, &count);
if (NS_FAILED(rv)) {
printf("read failed\n");
break;
}
if (count == 0) {
// printf("EOF count = %d\n", mCount);
break;
}
if (gTrace) {
printf("read: ");
buf[count] = '\0';
printf(buf);
printf("\n");
}
mCount += count;
}
PRIntervalTime end = PR_IntervalNow();
printf("read %d bytes, time = %dms\n", mCount,
PR_IntervalToMilliseconds(end - start));
return rv;
}
nsReceiver(nsIInputStream* in) : mIn(in), mCount(0) {
NS_ADDREF(in);
}
PRUint32 GetBytesRead() { return mCount; }
private:
~nsReceiver() {
NS_RELEASE(mIn);
}
protected:
nsIInputStream* mIn;
PRUint32 mCount;
};
NS_IMPL_THREADSAFE_ISUPPORTS1(nsReceiver, nsIRunnable)
nsresult
TestPipe(nsIInputStream* in, nsIOutputStream* out)
{
nsresult rv;
nsIThread* thread;
nsReceiver* receiver = new nsReceiver(in);
if (receiver == nsnull) return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(receiver);
rv = NS_NewThread(&thread, receiver);
if (NS_FAILED(rv)) return rv;
PRUint32 total = 0;
PRIntervalTime start = PR_IntervalNow();
for (PRUint32 i = 0; i < ITERATIONS; i++) {
PRUint32 writeCount;
char *buf = PR_smprintf("%d %s", i, kTestPattern);
PRUint32 len = strlen(buf);
rv = WriteAll(out, buf, len, &writeCount);
if (gTrace) {
printf("wrote: ");
for (PRUint32 j = 0; j < writeCount; j++) {
putc(buf[j], stdout);
}
printf("\n");
}
PR_smprintf_free(buf);
if (NS_FAILED(rv)) return rv;
total += writeCount;
}
rv = out->Close();
if (NS_FAILED(rv)) return rv;
PRIntervalTime end = PR_IntervalNow();
thread->Shutdown();
printf("wrote %d bytes, time = %dms\n", total,
PR_IntervalToMilliseconds(end - start));
NS_ASSERTION(receiver->GetBytesRead() == total, "didn't read everything");
NS_RELEASE(thread);
NS_RELEASE(receiver);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
class nsShortReader : public nsIRunnable {
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Run() {
nsresult rv;
char buf[101];
PRUint32 count;
PRUint32 total = 0;
while (PR_TRUE) {
//if (gTrace)
// printf("calling Read\n");
rv = mIn->Read(buf, 100, &count);
if (NS_FAILED(rv)) {
printf("read failed\n");
break;
}
if (count == 0) {
break;
}
buf[count] = '\0';
if (gTrace)
printf("read %d bytes: %s\n", count, buf);
Received(count);
total += count;
}
printf("read %d bytes\n", total);
return rv;
}
nsShortReader(nsIInputStream* in) : mIn(in), mReceived(0) {
NS_ADDREF(in);
}
void Received(PRUint32 count) {
nsAutoCMonitor mon(this);
mReceived += count;
mon.Notify();
}
PRUint32 WaitForReceipt() {
nsAutoCMonitor mon(this);
PRUint32 result = mReceived;
while (result == 0) {
mon.Wait();
NS_ASSERTION(mReceived >= 0, "failed to receive");
result = mReceived;
}
mReceived = 0;
return result;
}
private:
~nsShortReader() {
NS_RELEASE(mIn);
}
protected:
nsIInputStream* mIn;
PRUint32 mReceived;
};
NS_IMPL_THREADSAFE_ISUPPORTS1(nsShortReader, nsIRunnable)
nsresult
TestShortWrites(nsIInputStream* in, nsIOutputStream* out)
{
nsresult rv;
nsIThread* thread;
nsShortReader* receiver = new nsShortReader(in);
if (receiver == nsnull) return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(receiver);
rv = NS_NewThread(&thread, receiver);
if (NS_FAILED(rv)) return rv;
PRUint32 total = 0;
for (PRUint32 i = 0; i < ITERATIONS; i++) {
PRUint32 writeCount;
char* buf = PR_smprintf("%d %s", i, kTestPattern);
PRUint32 len = strlen(buf);
len = len * rand() / RAND_MAX;
len = PR_MAX(1, len);
rv = WriteAll(out, buf, len, &writeCount);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(writeCount == len, "didn't write enough");
total += writeCount;
if (gTrace)
printf("wrote %d bytes: %s\n", writeCount, buf);
PR_smprintf_free(buf);
//printf("calling Flush\n");
out->Flush();
//printf("calling WaitForReceipt\n");
PRUint32 received = receiver->WaitForReceipt();
NS_ASSERTION(received == writeCount, "received wrong amount");
}
rv = out->Close();
if (NS_FAILED(rv)) return rv;
thread->Shutdown();
printf("wrote %d bytes\n", total);
NS_RELEASE(thread);
NS_RELEASE(receiver);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
#if 0
class nsPipeObserver : public nsIInputStreamObserver,
public nsIOutputStreamObserver
{
public:
NS_DECL_ISUPPORTS
NS_IMETHOD OnFull(nsIOutputStream *outStr) {
printf("OnFull outStr=%p\n", outStr);
return NS_OK;
}
NS_IMETHOD OnWrite(nsIOutputStream *outStr, PRUint32 amount) {
printf("OnWrite outStr=%p amount=%d\n", outStr, amount);
return NS_OK;
}
NS_IMETHOD OnEmpty(nsIInputStream* inStr) {
printf("OnEmpty inStr=%p\n", inStr);
return NS_OK;
}
NS_IMETHOD OnClose(nsIInputStream* inStr) {
printf("OnClose inStr=%p\n", inStr);
return NS_OK;
}
nsPipeObserver() { }
private:
~nsPipeObserver() {}
};
NS_IMPL_ISUPPORTS2(nsPipeObserver, nsIInputStreamObserver, nsIOutputStreamObserver)
nsresult
TestPipeObserver()
{
nsresult rv;
nsPipeObserver* obs = new nsPipeObserver();
if (obs == nsnull) return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(obs);
printf("TestPipeObserver: OnWrite and OnFull should be called once, OnEmpty should be called twice.\n");
nsIInputStream* in;
nsIOutputStream* out;
rv = NS_NewPipe(&in, &out, 18, 36, PR_TRUE, PR_TRUE);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIObservableInputStream> observableIn(do_QueryInterface(in, &rv));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIObservableInputStream> observableOut(do_QueryInterface(out, &rv));
if (NS_FAILED(rv)) return rv;
rv = observableIn->SetObserver(obs);
if (NS_FAILED(rv)) return rv;
rv = observableOut->SetObserver(obs);
if (NS_FAILED(rv)) return rv;
char buf[] = "puirt a beul: a style of Gaelic vocal music intended for dancing.";
PRUint32 cnt;
printf("> should see OnWrite message:\n");
rv = out->Write(buf, 20, &cnt);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(cnt == 20, "Write failed");
printf("> should see OnWrite message followed by OnFull message:\n");
rv = out->Write(buf + 20, 20, &cnt);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(cnt == 16, "Write failed");
rv = in->Available(&cnt);
if (NS_FAILED(rv)) return rv;
printf("available = %u\n", cnt);
NS_ASSERTION(cnt == 36, "Available failed");
char buf2[40];
printf("> should see OnEmpty message:\n");
rv = in->Read(buf2, 40, &cnt);
if (NS_FAILED(rv)) return rv;
printf("cnt = %u\n", cnt);
NS_ASSERTION(cnt == 36, "Read failed");
NS_ASSERTION(nsCRT::strncmp(buf, buf2, 36) == 0, "Read wrong stuff");
rv = in->Available(&cnt);
if (NS_FAILED(rv)) return rv;
printf("available = %u\n", cnt);
NS_ASSERTION(cnt == 0, "Available failed");
printf("> should see OnEmpty message:\n");
rv = in->Read(buf2, 2, &cnt);
if (NS_FAILED(rv) && rv != NS_BASE_STREAM_WOULD_BLOCK) return rv;
NS_ASSERTION(cnt == 0 && rv == NS_BASE_STREAM_WOULD_BLOCK, "Read failed");
printf("> should see OnWrite message:\n");
rv = out->Write(buf, 20, &cnt);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(cnt == 20, "Write failed");
rv = in->Available(&cnt);
if (NS_FAILED(rv)) return rv;
printf("available = %u\n", cnt);
NS_ASSERTION(cnt == 20, "Available failed");
printf("> should see OnEmpty message:\n");
rv = in->Read(buf2, 20, &cnt);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(cnt == 20, "Read failed");
printf("> should see OnClose message:\n");
NS_RELEASE(obs);
NS_RELEASE(in);
NS_RELEASE(out);
return NS_OK;
}
#endif
////////////////////////////////////////////////////////////////////////////////
class nsPump : public nsIRunnable
{
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Run() {
nsresult rv;
PRUint32 count;
while (PR_TRUE) {
nsAutoCMonitor mon(this);
rv = mOut->WriteFrom(mIn, ~0U, &count);
if (NS_FAILED(rv)) {
printf("Write failed\n");
break;
}
if (count == 0) {
printf("EOF count = %d\n", mCount);
break;
}
if (gTrace) {
printf("Wrote: %d\n", count);
}
mCount += count;
}
mOut->Close();
return rv;
}
nsPump(nsIInputStream* in,
nsIOutputStream* out)
: mIn(in), mOut(out), mCount(0) {
}
private:
~nsPump() {}
protected:
nsCOMPtr<nsIInputStream> mIn;
nsCOMPtr<nsIOutputStream> mOut;
PRUint32 mCount;
};
NS_IMPL_THREADSAFE_ISUPPORTS1(nsPump,
nsIRunnable)
nsresult
TestChainedPipes()
{
nsresult rv;
printf("TestChainedPipes\n");
nsIInputStream* in1;
nsIOutputStream* out1;
rv = NS_NewPipe(&in1, &out1, 20, 1999);
if (NS_FAILED(rv)) return rv;
nsIInputStream* in2;
nsIOutputStream* out2;
rv = NS_NewPipe(&in2, &out2, 200, 401);
if (NS_FAILED(rv)) return rv;
nsIThread* thread;
nsPump* pump = new nsPump(in1, out2);
if (pump == nsnull) return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(pump);
rv = NS_NewThread(&thread, pump);
if (NS_FAILED(rv)) return rv;
nsIThread* receiverThread;
nsReceiver* receiver = new nsReceiver(in2);
if (receiver == nsnull) return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(receiver);
rv = NS_NewThread(&receiverThread, receiver);
if (NS_FAILED(rv)) return rv;
PRUint32 total = 0;
for (PRUint32 i = 0; i < ITERATIONS; i++) {
PRUint32 writeCount;
char* buf = PR_smprintf("%d %s", i, kTestPattern);
PRUint32 len = strlen(buf);
len = len * rand() / RAND_MAX;
len = PR_MAX(1, len);
rv = WriteAll(out1, buf, len, &writeCount);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(writeCount == len, "didn't write enough");
total += writeCount;
if (gTrace)
printf("wrote %d bytes: %s\n", writeCount, buf);
PR_smprintf_free(buf);
}
printf("wrote total of %d bytes\n", total);
rv = out1->Close();
if (NS_FAILED(rv)) return rv;
thread->Shutdown();
receiverThread->Shutdown();
NS_RELEASE(thread);
NS_RELEASE(pump);
NS_RELEASE(receiverThread);
NS_RELEASE(receiver);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
void
RunTests(PRUint32 segSize, PRUint32 segCount)
{
nsresult rv;
nsIInputStream* in;
nsIOutputStream* out;
PRUint32 bufSize;
bufSize = segSize * segCount;
printf("Testing New Pipes: segment size %d buffer size %d\n", segSize, bufSize);
printf("Testing long writes...\n");
rv = NS_NewPipe(&in, &out, segSize, bufSize);
NS_ASSERTION(NS_SUCCEEDED(rv), "NS_NewPipe failed");
rv = TestPipe(in, out);
NS_RELEASE(in);
NS_RELEASE(out);
NS_ASSERTION(NS_SUCCEEDED(rv), "TestPipe failed");
printf("Testing short writes...\n");
rv = NS_NewPipe(&in, &out, segSize, bufSize);
NS_ASSERTION(NS_SUCCEEDED(rv), "NS_NewPipe failed");
rv = TestShortWrites(in, out);
NS_RELEASE(in);
NS_RELEASE(out);
NS_ASSERTION(NS_SUCCEEDED(rv), "TestPipe failed");
}
////////////////////////////////////////////////////////////////////////////////
#if 0
void
TestSearch(const char* delim, PRUint32 segSize)
{
nsresult rv;
// need at least 2 segments to test boundary conditions:
PRUint32 bufDataSize = segSize * 2;
PRUint32 bufSize = segSize * 2;
nsIInputStream* in;
nsIOutputStream* out;
rv = NS_NewPipe(&in, &out, segSize, bufSize);
NS_ASSERTION(NS_SUCCEEDED(rv), "NS_NewPipe failed");
out->SetNonBlocking(PR_TRUE);
PRUint32 i, j, amt;
PRUint32 delimLen = nsCRT::strlen(delim);
for (i = 0; i < bufDataSize; i++) {
// first fill the buffer
for (j = 0; j < i; j++) {
rv = out->Write("-", 1, &amt);
NS_ASSERTION(NS_SUCCEEDED(rv) && amt == 1, "Write failed");
}
rv = out->Write(delim, delimLen, &amt);
NS_ASSERTION(NS_SUCCEEDED(rv), "Write failed");
if (i + amt < bufDataSize) {
for (j = i + amt; j < bufDataSize; j++) {
rv = out->Write("+", 1, &amt);
NS_ASSERTION(NS_SUCCEEDED(rv) && amt == 1, "Write failed");
}
}
// now search for the delimiter
PRBool found;
PRUint32 offset;
rv = in->Search(delim, PR_FALSE, &found, &offset);
NS_ASSERTION(NS_SUCCEEDED(rv), "Search failed");
// print the results
char* bufferContents = new char[bufDataSize + 1];
rv = in->Read(bufferContents, bufDataSize, &amt);
NS_ASSERTION(NS_SUCCEEDED(rv) && amt == bufDataSize, "Read failed");
bufferContents[bufDataSize] = '\0';
printf("Buffer: %s\nDelim: %s %s offset: %d\n", bufferContents,
delim, (found ? "found" : "not found"), offset);
}
NS_RELEASE(in);
NS_RELEASE(out);
}
#endif
////////////////////////////////////////////////////////////////////////////////
#ifdef DEBUG
extern NS_COM void
TestSegmentedBuffer();
#endif
int
main(int argc, char* argv[])
{
nsresult rv;
nsIServiceManager* servMgr;
rv = NS_InitXPCOM2(&servMgr, NULL, NULL);
if (NS_FAILED(rv)) return rv;
if (argc > 1 && nsCRT::strcmp(argv[1], "-trace") == 0)
gTrace = PR_TRUE;
#ifdef DEBUG
TestSegmentedBuffer();
#endif
#if 0 // obsolete old implementation
rv = NS_NewPipe(&in, &out, 4096 * 4);
if (NS_FAILED(rv)) {
printf("NewPipe failed\n");
return -1;
}
rv = TestPipe(in, out);
NS_RELEASE(in);
NS_RELEASE(out);
if (NS_FAILED(rv)) {
printf("TestPipe failed\n");
return -1;
}
#endif
#if 0
TestSearch("foo", 8);
TestSearch("bar", 6);
TestSearch("baz", 2);
#endif
rv = TestChainedPipes();
NS_ASSERTION(NS_SUCCEEDED(rv), "TestChainedPipes failed");
RunTests(16, 1);
RunTests(4096, 16);
NS_RELEASE(servMgr);
rv = NS_ShutdownXPCOM( NULL );
NS_ASSERTION(NS_SUCCEEDED(rv), "NS_ShutdownXPCOM failed");
return 0;
}
////////////////////////////////////////////////////////////////////////////////
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