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gecko-dev/netwerk/test/TestFileTransport.cpp
mjudge%netscape.com 2cfb602409 making string conversions explicit. scc
2000-04-26 01:13:55 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsIFileTransportService.h"
#include "nsIChannel.h"
#include "nsIServiceManager.h"
#include "nsIComponentManager.h"
#include "nsCOMPtr.h"
#include "nsIAllocator.h"
#include "nsString.h"
#include "nsIFileStreams.h"
#include "nsIStreamListener.h"
#include "nsIEventQueueService.h"
#include "nsIEventQueue.h"
static NS_DEFINE_CID(kFileTransportServiceCID, NS_FILETRANSPORTSERVICE_CID);
static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_CID(kEventQueueCID, NS_EVENTQUEUE_CID);
PRBool gDone = PR_FALSE;
nsIEventQueue* gEventQ = nsnull;
////////////////////////////////////////////////////////////////////////////////
class MyListener : public nsIStreamListener {
public:
NS_DECL_ISUPPORTS
NS_IMETHOD OnStartRequest(nsIChannel *channel, nsISupports *ctxt) {
printf("starting\n");
return NS_OK;
}
NS_IMETHOD OnStopRequest(nsIChannel *channel, nsISupports *ctxt,
nsresult status, const PRUnichar *errorMsg) {
printf("ending status=%0x total=%d\n", status, mTotal);
if (--mStopCount == 0)
gDone = PR_TRUE;
return NS_OK;
}
NS_IMETHOD OnDataAvailable(nsIChannel *channel, nsISupports *ctxt,
nsIInputStream *inStr, PRUint32 sourceOffset,
PRUint32 count) {
printf("receiving %d bytes\n", count);
char buf[256];
PRUint32 writeCount;
nsresult rv;
while (count > 0) {
PRUint32 amt = PR_MIN(count, 256);
PRUint32 readCount;
rv = inStr->Read(buf, amt, &readCount);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(readCount != 0, "premature EOF");
nsresult rv = mOut->Write(buf, readCount, &writeCount);
if (NS_FAILED(rv)) return rv;
NS_ASSERTION(writeCount == readCount, "failed to write all the data");
count -= readCount;
mTotal += readCount;
}
return NS_OK;
}
MyListener(PRUint32 stopCount = 1) : mTotal(0), mStopCount(stopCount) {
NS_INIT_REFCNT();
}
nsresult Init(nsFileSpec& origFile) {
nsresult rv;
char* name = origFile.GetLeafName();
if (name == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
nsAutoString str; str.AssignWithConversion(name);
nsAllocator::Free(name);
str.AppendWithConversion(".bak");
nsFileSpec spec(origFile);
spec.SetLeafName(str);
nsCOMPtr<nsILocalFile> file;
rv = NS_NewLocalFile(spec, getter_AddRefs(file));
rv = NS_NewLocalFileOutputStream(getter_AddRefs(mOut),
file,
PR_CREATE_FILE | PR_WRONLY | PR_TRUNCATE,
0664);
return rv;
}
virtual ~MyListener() {
nsresult rv = mOut->Close();
NS_ASSERTION(NS_SUCCEEDED(rv), "Close failed");
}
protected:
nsCOMPtr<nsIOutputStream> mOut;
PRUint32 mTotal;
PRUint32 mStopCount;
};
NS_IMPL_ISUPPORTS2(MyListener, nsIStreamListener, nsIStreamObserver);
////////////////////////////////////////////////////////////////////////////////
nsresult
TestAsyncRead(const char* fileName, PRUint32 offset, PRInt32 length)
{
nsresult rv;
NS_WITH_SERVICE(nsIFileTransportService, fts, kFileTransportServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
nsFileSpec fs(fileName);
nsIChannel* fileTrans;
nsCOMPtr<nsILocalFile> file;
rv = NS_NewLocalFile(fs, getter_AddRefs(file));
if (NS_FAILED(rv)) return rv;
rv = fts->CreateTransport(file, PR_RDONLY, 0, &fileTrans);
if (NS_FAILED(rv)) return rv;
MyListener* listener = new MyListener();
if (listener == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(listener);
rv = listener->Init(fs);
if (NS_FAILED(rv)) return rv;
gDone = PR_FALSE;
rv = fileTrans->SetTransferOffset(offset);
if (NS_FAILED(rv)) return rv;
rv = fileTrans->SetTransferCount(length);
if (NS_FAILED(rv)) return rv;
rv = fileTrans->AsyncRead(nsnull, listener);
if (NS_FAILED(rv)) return rv;
while (!gDone) {
PLEvent* event;
rv = gEventQ->GetEvent(&event);
if (NS_FAILED(rv)) return rv;
rv = gEventQ->HandleEvent(event);
if (NS_FAILED(rv)) return rv;
}
NS_RELEASE(listener);
NS_RELEASE(fileTrans);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
nsresult
TestAsyncWrite(const char* fileName, PRUint32 offset, PRInt32 length)
{
nsresult rv;
NS_WITH_SERVICE(nsIFileTransportService, fts, kFileTransportServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
nsString outFile; outFile.AssignWithConversion(fileName);
outFile.AppendWithConversion(".out");
nsFileSpec fs(outFile);
nsIChannel* fileTrans;
nsCOMPtr<nsILocalFile> file;
rv = NS_NewLocalFile(fs, getter_AddRefs(file));
if (NS_FAILED(rv)) return rv;
rv = fts->CreateTransport(file,
PR_CREATE_FILE | PR_WRONLY | PR_TRUNCATE,
0664, &fileTrans);
if (NS_FAILED(rv)) return rv;
MyListener* listener = new MyListener();
if (listener == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(listener);
rv = listener->Init(fs);
if (NS_FAILED(rv)) return rv;
nsFileSpec spec(fileName);
nsCOMPtr<nsILocalFile> f;
rv = NS_NewLocalFile(spec, getter_AddRefs(f));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIInputStream> inStr;
rv = NS_NewLocalFileInputStream(getter_AddRefs(inStr), f);
if (NS_FAILED(rv)) return rv;
gDone = PR_FALSE;
rv = fileTrans->SetTransferOffset(offset);
if (NS_FAILED(rv)) return rv;
rv = fileTrans->SetTransferCount(length);
if (NS_FAILED(rv)) return rv;
rv = fileTrans->AsyncWrite(inStr, nsnull, listener);
if (NS_FAILED(rv)) return rv;
while (!gDone) {
PLEvent* event;
rv = gEventQ->GetEvent(&event);
if (NS_FAILED(rv)) return rv;
rv = gEventQ->HandleEvent(event);
if (NS_FAILED(rv)) return rv;
}
NS_RELEASE(listener);
NS_RELEASE(fileTrans);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
class MyOpenObserver : public nsIStreamObserver
{
public:
NS_DECL_ISUPPORTS
NS_IMETHOD OnStartRequest(nsIChannel *channel, nsISupports *ctxt) {
nsresult rv;
char* contentType;
rv = channel->GetContentType(&contentType);
if (NS_FAILED(rv)) return rv;
PRInt32 length;
rv = channel->GetContentLength(&length);
if (NS_FAILED(rv)) return rv;
printf("stream opened: content type = %s, length = %d\n",
contentType, length);
nsCRT::free(contentType);
return NS_OK;
}
NS_IMETHOD OnStopRequest(nsIChannel *channel, nsISupports *ctxt,
nsresult status, const PRUnichar *errorMsg) {
printf("stream closed: status %x\n", status);
return NS_OK;
}
MyOpenObserver() { NS_INIT_REFCNT(); }
virtual ~MyOpenObserver() {}
};
NS_IMPL_ISUPPORTS1(MyOpenObserver, nsIStreamObserver);
nsresult
TestAsyncOpen(const char* fileName, PRUint32 offset, PRInt32 length)
{
nsresult rv;
NS_WITH_SERVICE(nsIFileTransportService, fts, kFileTransportServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
nsFileSpec fs(fileName);
nsIChannel* fileTrans;
nsCOMPtr<nsILocalFile> file;
rv = NS_NewLocalFile(fs, getter_AddRefs(file));
if (NS_FAILED(rv)) return rv;
rv = fts->CreateTransport(file, PR_RDONLY, 0, &fileTrans);
if (NS_FAILED(rv)) return rv;
MyListener* listener = new MyListener(1);
if (listener == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(listener);
rv = listener->Init(fs);
if (NS_FAILED(rv)) return rv;
MyOpenObserver* openObserver = new MyOpenObserver();
if (openObserver == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(openObserver);
gDone = PR_FALSE;
rv = fileTrans->AsyncOpen(openObserver, nsnull);
if (NS_FAILED(rv)) return rv;
rv = fileTrans->SetTransferOffset(offset + 10);
if (NS_FAILED(rv)) return rv;
rv = fileTrans->SetTransferCount(length);
if (NS_FAILED(rv)) return rv;
rv = fileTrans->AsyncRead(nsnull, listener);
if (NS_FAILED(rv)) return rv;
#if 0
rv = fileTrans->AsyncRead(offset, length, nsnull, listener);
if (NS_FAILED(rv)) return rv;
rv = fileTrans->AsyncRead(offset + 100, length, nsnull, listener);
if (NS_FAILED(rv)) return rv;
#endif
while (!gDone) {
PLEvent* event;
rv = gEventQ->GetEvent(&event);
if (NS_FAILED(rv)) return rv;
rv = gEventQ->HandleEvent(event);
if (NS_FAILED(rv)) return rv;
}
NS_RELEASE(openObserver);
NS_RELEASE(listener);
NS_RELEASE(fileTrans);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////////////
nsresult
NS_AutoregisterComponents()
{
nsresult rv = nsComponentManager::AutoRegister(nsIComponentManager::NS_Startup, NULL /* default */);
return rv;
}
int
main(int argc, char* argv[])
{
nsresult rv;
if (argc < 2) {
printf("usage: %s <file-to-read>\n", argv[0]);
return -1;
}
char* fileName = argv[1];
rv = NS_AutoregisterComponents();
if (NS_FAILED(rv)) return rv;
NS_WITH_SERVICE(nsIEventQueueService, eventQService, kEventQueueServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
rv = eventQService->CreateThreadEventQueue();
if (NS_FAILED(rv)) return rv;
rv = eventQService->GetThreadEventQueue(NS_CURRENT_THREAD, &gEventQ);
if (NS_FAILED(rv)) return rv;
rv = TestAsyncRead(fileName, 0, -1);
NS_ASSERTION(NS_SUCCEEDED(rv), "TestAsyncRead failed");
rv = TestAsyncWrite(fileName, 0, -1);
NS_ASSERTION(NS_SUCCEEDED(rv), "TestAsyncWrite failed");
rv = TestAsyncRead(fileName, 10, 100);
NS_ASSERTION(NS_SUCCEEDED(rv), "TestAsyncRead failed");
rv = TestAsyncOpen(fileName, 10, 100);
NS_ASSERTION(NS_SUCCEEDED(rv), "TestAsyncOpen failed");
NS_RELEASE(gEventQ);
return NS_OK;
}
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