gecko/netwerk/protocol/about/nsAboutBloat.cpp

141 lines
4.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsTraceRefcnt.h"
// if NS_BUILD_REFCNT_LOGGING isn't defined, don't try to build
#ifdef NS_BUILD_REFCNT_LOGGING
#include "nsAboutBloat.h"
#include "nsStringStream.h"
#include "nsIURI.h"
#include "nsCOMPtr.h"
#include "nsNetUtil.h"
#include "nsDirectoryServiceDefs.h"
#include "nsIFile.h"
static void GC_gcollect() {}
NS_IMPL_ISUPPORTS(nsAboutBloat, nsIAboutModule)
NS_IMETHODIMP
nsAboutBloat::NewChannel(nsIURI *aURI, nsIChannel **result)
{
NS_ENSURE_ARG_POINTER(aURI);
nsresult rv;
nsAutoCString path;
rv = aURI->GetPath(path);
if (NS_FAILED(rv)) return rv;
nsTraceRefcnt::StatisticsType statType = nsTraceRefcnt::ALL_STATS;
bool clear = false;
bool leaks = false;
int32_t pos = path.Find("?");
if (pos > 0) {
nsAutoCString param;
(void)path.Right(param, path.Length() - (pos+1));
if (param.EqualsLiteral("new"))
statType = nsTraceRefcnt::NEW_STATS;
else if (param.EqualsLiteral("clear"))
clear = true;
else if (param.EqualsLiteral("leaks"))
leaks = true;
}
nsCOMPtr<nsIInputStream> inStr;
if (clear) {
nsTraceRefcnt::ResetStatistics();
rv = NS_NewCStringInputStream(getter_AddRefs(inStr),
NS_LITERAL_CSTRING("Bloat statistics cleared."));
if (NS_FAILED(rv)) return rv;
}
else if (leaks) {
// dump the current set of leaks.
GC_gcollect();
rv = NS_NewCStringInputStream(getter_AddRefs(inStr),
NS_LITERAL_CSTRING("Memory leaks dumped."));
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;
bool 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;
}
nsAutoCString dumpFileName;
if (statType == nsTraceRefcnt::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;
rv = file->OpenANSIFileDesc("w", &out);
if (NS_FAILED(rv)) return rv;
rv = nsTraceRefcnt::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 = nullptr;
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, uint32_t *result)
{
*result = 0;
return NS_OK;
}
nsresult
nsAboutBloat::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
{
nsAboutBloat* about = new nsAboutBloat();
if (about == nullptr)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(about);
nsresult rv = about->QueryInterface(aIID, aResult);
NS_RELEASE(about);
return rv;
}
////////////////////////////////////////////////////////////////////////////////
#endif /* NS_BUILD_REFCNT_LOGGING */