mirror of
https://github.com/mozilla/gecko-dev.git
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251 lines
7.2 KiB
C++
251 lines
7.2 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIComponentRegistrar.h"
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#include "nsIStreamTransportService.h"
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#include "nsIAsyncInputStream.h"
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#include "nsIProgressEventSink.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsIProxyObjectManager.h"
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#include "nsIRequest.h"
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#include "nsIServiceManager.h"
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#include "nsIComponentManager.h"
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#include "nsISeekableStream.h"
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#include "nsCOMPtr.h"
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#include "nsMemory.h"
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#include "nsString.h"
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#include "nsIFileStreams.h"
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#include "nsIStreamListener.h"
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#include "nsIEventQueueService.h"
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#include "nsIEventQueue.h"
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#include "nsILocalFile.h"
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#include "nsNetUtil.h"
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#include "nsAutoLock.h"
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#include "prlog.h"
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////////////////////////////////////////////////////////////////////////////////
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#if defined(PR_LOGGING)
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//
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// set NSPR_LOG_MODULES=Test:5
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//
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static PRLogModuleInfo *gTestLog = nsnull;
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#define LOG(args) PR_LOG(gTestLog, PR_LOG_DEBUG, args)
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#else
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#define LOG(args)
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#endif
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////////////////////////////////////////////////////////////////////////////////
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static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
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PRBool gDone = PR_FALSE;
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nsIEventQueue *gEventQ = nsnull;
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////////////////////////////////////////////////////////////////////////////////
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static void *PR_CALLBACK
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DoneEvent_Handler(PLEvent *ev)
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{
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gDone = PR_TRUE;
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return nsnull;
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}
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static void PR_CALLBACK
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DoneEvent_Cleanup(PLEvent *ev)
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{
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delete ev;
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}
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static void
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PostDoneEvent()
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{
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LOG(("PostDoneEvent\n"));
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PLEvent *ev = new PLEvent();
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PL_InitEvent(ev, nsnull,
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DoneEvent_Handler,
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DoneEvent_Cleanup);
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gEventQ->PostEvent(ev);
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}
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////////////////////////////////////////////////////////////////////////////////
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class MyListener : public nsIStreamListener
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{
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public:
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NS_DECL_ISUPPORTS
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MyListener() {}
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virtual ~MyListener() {}
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NS_IMETHOD OnStartRequest(nsIRequest *req, nsISupports *ctx)
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{
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LOG(("MyListener::OnStartRequest\n"));
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return NS_OK;
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}
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NS_IMETHOD OnDataAvailable(nsIRequest *req, nsISupports *ctx,
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nsIInputStream *stream,
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PRUint32 offset, PRUint32 count)
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{
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LOG(("MyListener::OnDataAvailable [offset=%u count=%u]\n", offset, count));
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char buf[500];
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nsresult rv;
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while (count) {
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PRUint32 n, amt = PR_MIN(count, sizeof(buf));
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rv = stream->Read(buf, amt, &n);
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if (NS_FAILED(rv)) {
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LOG((" read returned 0x%08x\n", rv));
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return rv;
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}
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fwrite(buf, n, 1, stdout);
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printf("\n");
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LOG((" read %u bytes\n", n));
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count -= n;
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}
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return NS_OK;
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}
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NS_IMETHOD OnStopRequest(nsIRequest *req, nsISupports *ctx, nsresult status)
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{
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LOG(("MyListener::OnStopRequest [status=%x]\n", status));
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PostDoneEvent();
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return NS_OK;
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}
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};
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NS_IMPL_ISUPPORTS2(MyListener,
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nsIRequestObserver,
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nsIStreamListener)
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////////////////////////////////////////////////////////////////////////////////
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/**
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* asynchronously copy file.
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*/
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static nsresult
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RunTest(nsIFile *file, PRInt32 offset, PRInt32 length)
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{
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nsresult rv;
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LOG(("RunTest\n"));
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nsCOMPtr<nsIInputStream> stream;
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rv = NS_NewLocalFileInputStream(getter_AddRefs(stream), file);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsIInputStreamPump> pump;
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rv = NS_NewInputStreamPump(getter_AddRefs(pump), stream, offset, length);
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if (NS_FAILED(rv)) return rv;
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rv = pump->AsyncRead(new MyListener(), nsnull);
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if (NS_FAILED(rv)) return rv;
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gDone = PR_FALSE;
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while (!gDone) {
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PLEvent *event;
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rv = gEventQ->WaitForEvent(&event);
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if (NS_FAILED(rv)) return rv;
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rv = gEventQ->HandleEvent(event);
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if (NS_FAILED(rv)) return rv;
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}
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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int
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main(int argc, char* argv[])
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{
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nsresult rv;
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if (argc < 4) {
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printf("usage: %s <file-to-read> <start-offset> <read-length>\n", argv[0]);
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return -1;
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}
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char* fileName = argv[1];
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PRInt32 offset = atoi(argv[2]);
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PRInt32 length = atoi(argv[3]);
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{
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nsCOMPtr<nsIServiceManager> servMan;
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NS_InitXPCOM2(getter_AddRefs(servMan), nsnull, nsnull);
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nsCOMPtr<nsIComponentRegistrar> registrar = do_QueryInterface(servMan);
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NS_ASSERTION(registrar, "Null nsIComponentRegistrar");
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if (registrar)
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registrar->AutoRegister(nsnull);
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#if defined(PR_LOGGING)
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gTestLog = PR_NewLogModule("Test");
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#endif
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nsCOMPtr<nsIEventQueueService> eventQService =
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do_GetService(kEventQueueServiceCID, &rv);
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if (NS_FAILED(rv)) return rv;
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rv = eventQService->GetThreadEventQueue(NS_CURRENT_THREAD, &gEventQ);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsILocalFile> file;
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rv = NS_NewNativeLocalFile(nsDependentCString(fileName), PR_FALSE, getter_AddRefs(file));
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if (NS_FAILED(rv)) return rv;
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rv = RunTest(file, offset, length);
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NS_ASSERTION(NS_SUCCEEDED(rv), "RunTest failed");
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NS_RELEASE(gEventQ);
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// give background threads a chance to finish whatever work they may
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// be doing.
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PR_Sleep(PR_SecondsToInterval(1));
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} // this scopes the nsCOMPtrs
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// no nsCOMPtrs are allowed to be alive when you call NS_ShutdownXPCOM
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rv = NS_ShutdownXPCOM(nsnull);
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NS_ASSERTION(NS_SUCCEEDED(rv), "NS_ShutdownXPCOM failed");
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return NS_OK;
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}
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