gecko/netwerk/protocol/about/nsAboutBloat.cpp

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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):
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 ***** */
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#include "nsTraceRefcntImpl.h"
// if NS_BUILD_REFCNT_LOGGING isn't defined, don't try to build
#ifdef NS_BUILD_REFCNT_LOGGING
#include "nsAboutBloat.h"
#include "nsIIOService.h"
#include "nsIServiceManager.h"
#include "nsStringStream.h"
#include "nsXPIDLString.h"
#include "nsIURI.h"
#include "prtime.h"
#include "nsCOMPtr.h"
#include "nsIFileStreams.h"
#include "nsNetUtil.h"
#include "nsDirectoryServiceDefs.h"
#include "nsILocalFile.h"
#ifdef XP_MAC
extern "C" void GC_gcollect(void);
#else
static void GC_gcollect() {}
#endif
NS_IMPL_ISUPPORTS1(nsAboutBloat, nsIAboutModule)
NS_IMETHODIMP
nsAboutBloat::NewChannel(nsIURI *aURI, nsIChannel **result)
{
NS_ENSURE_ARG_POINTER(aURI);
nsresult rv;
nsCAutoString path;
rv = aURI->GetPath(path);
if (NS_FAILED(rv)) return rv;
nsTraceRefcntImpl::StatisticsType statType = nsTraceRefcntImpl::ALL_STATS;
PRBool clear = PR_FALSE;
PRBool leaks = PR_FALSE;
PRInt32 pos = path.Find("?");
if (pos > 0) {
nsCAutoString param;
(void)path.Right(param, path.Length() - (pos+1));
if (param.EqualsLiteral("new"))
statType = nsTraceRefcntImpl::NEW_STATS;
else if (param.EqualsLiteral("clear"))
clear = PR_TRUE;
else if (param.EqualsLiteral("leaks"))
leaks = PR_TRUE;
}
nsCOMPtr<nsIInputStream> inStr;
if (clear) {
nsTraceRefcntImpl::ResetStatistics();
const char* msg = "Bloat statistics cleared.";
rv = NS_NewCStringInputStream(getter_AddRefs(inStr), nsDependentCString(msg));
if (NS_FAILED(rv)) return rv;
}
else if (leaks) {
// dump the current set of leaks.
GC_gcollect();
const char* msg = "Memory leaks dumped.";
rv = NS_NewCStringInputStream(getter_AddRefs(inStr), nsDependentCString(msg));
if (NS_FAILED(rv)) return rv;
}
else {
nsCOMPtr<nsIFile> file;
rv = NS_GetSpecialDirectory(NS_OS_CURRENT_PROCESS_DIR,
getter_AddRefs(file));
if (NS_FAILED(rv)) return rv;
rv = file->AppendNative(NS_LITERAL_CSTRING("bloatlogs"));
if (NS_FAILED(rv)) return rv;
PRBool exists;
rv = file->Exists(&exists);
if (NS_FAILED(rv)) return rv;
if (!exists) {
// On all the platforms that I know use permissions,
// directories need to have the executable flag set
// if you want to do anything inside the directory.
rv = file->Create(nsIFile::DIRECTORY_TYPE, 0755);
if (NS_FAILED(rv)) return rv;
}
nsCAutoString dumpFileName;
if (statType == nsTraceRefcntImpl::ALL_STATS)
dumpFileName.AssignLiteral("all-");
else
dumpFileName.AssignLiteral("new-");
PRExplodedTime expTime;
PR_ExplodeTime(PR_Now(), PR_LocalTimeParameters, &expTime);
char time[128];
PR_FormatTimeUSEnglish(time, 128, "%Y-%m-%d-%H%M%S.txt", &expTime);
dumpFileName += time;
rv = file->AppendNative(dumpFileName);
if (NS_FAILED(rv)) return rv;
FILE* out;
nsCOMPtr<nsILocalFile> lfile = do_QueryInterface(file);
if (lfile == nsnull)
return NS_ERROR_FAILURE;
rv = lfile->OpenANSIFileDesc("w", &out);
if (NS_FAILED(rv)) return rv;
rv = nsTraceRefcntImpl::DumpStatistics(statType, out);
::fclose(out);
if (NS_FAILED(rv)) return rv;
rv = NS_NewLocalFileInputStream(getter_AddRefs(inStr), file);
if (NS_FAILED(rv)) return rv;
}
nsIChannel* channel;
rv = NS_NewInputStreamChannel(&channel, aURI, inStr,
NS_LITERAL_CSTRING("text/plain"),
NS_LITERAL_CSTRING("utf-8"));
if (NS_FAILED(rv)) return rv;
*result = channel;
return rv;
}
NS_IMETHODIMP
nsAboutBloat::GetURIFlags(nsIURI *aURI, PRUint32 *result)
{
*result = 0;
return NS_OK;
}
nsresult
nsAboutBloat::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
{
nsAboutBloat* about = new nsAboutBloat();
if (about == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(about);
nsresult rv = about->QueryInterface(aIID, aResult);
NS_RELEASE(about);
return rv;
}
////////////////////////////////////////////////////////////////////////////////
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#endif /* NS_BUILD_REFCNT_LOGGING */