tenfourfox/netwerk/cache/nsCache.cpp

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2017-04-19 07:56:45 +00:00
/* -*- Mode: C++; tab-width: 4; 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 "nsCache.h"
#include "nsReadableUtils.h"
#include "nsDependentSubstring.h"
#include "nsString.h"
/**
* Cache Service Utility Functions
*/
mozilla::LazyLogModule gCacheLog("cache");
void
CacheLogPrintPath(mozilla::LogLevel level, const char * format, nsIFile * item)
{
nsAutoCString path;
nsresult rv = item->GetNativePath(path);
if (NS_SUCCEEDED(rv)) {
MOZ_LOG(gCacheLog, level, (format, path.get()));
} else {
MOZ_LOG(gCacheLog, level, ("GetNativePath failed: %x", rv));
}
}
uint32_t
SecondsFromPRTime(PRTime prTime)
{
int64_t microSecondsPerSecond = PR_USEC_PER_SEC;
return uint32_t(prTime / microSecondsPerSecond);
}
PRTime
PRTimeFromSeconds(uint32_t seconds)
{
int64_t intermediateResult = seconds;
PRTime prTime = intermediateResult * PR_USEC_PER_SEC;
return prTime;
}
nsresult
ClientIDFromCacheKey(const nsACString& key, char ** result)
{
nsresult rv = NS_OK;
*result = nullptr;
nsReadingIterator<char> colon;
key.BeginReading(colon);
nsReadingIterator<char> start;
key.BeginReading(start);
nsReadingIterator<char> end;
key.EndReading(end);
if (FindCharInReadable(':', colon, end)) {
*result = ToNewCString( Substring(start, colon));
if (!*result) rv = NS_ERROR_OUT_OF_MEMORY;
} else {
NS_ASSERTION(false, "FindCharInRead failed to find ':'");
rv = NS_ERROR_UNEXPECTED;
}
return rv;
}
nsresult
ClientKeyFromCacheKey(const nsCString& key, nsACString &result)
{
nsresult rv = NS_OK;
nsReadingIterator<char> start;
key.BeginReading(start);
nsReadingIterator<char> end;
key.EndReading(end);
if (FindCharInReadable(':', start, end)) {
++start; // advance past clientID ':' delimiter
result.Assign(Substring(start, end));
} else {
NS_ASSERTION(false, "FindCharInRead failed to find ':'");
rv = NS_ERROR_UNEXPECTED;
result.Truncate(0);
}
return rv;
}