mirror of
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118 lines
2.7 KiB
C++
118 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsCache.h"
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#include "nsReadableUtils.h"
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#include "nsDependentSubstring.h"
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#include "nsString.h"
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/**
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* Cache Service Utility Functions
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*/
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#if defined(PR_LOGGING)
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PRLogModuleInfo * gCacheLog = nsnull;
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void
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CacheLogInit()
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{
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if (gCacheLog) return;
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gCacheLog = PR_NewLogModule("cache");
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NS_ASSERTION(gCacheLog, "\nfailed to allocate cache log.\n");
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}
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void
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CacheLogPrintPath(PRLogModuleLevel level, const char * format, nsIFile * item)
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{
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nsCAutoString path;
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nsresult rv = item->GetNativePath(path);
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if (NS_SUCCEEDED(rv)) {
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PR_LOG(gCacheLog, level, (format, path.get()));
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} else {
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PR_LOG(gCacheLog, level, ("GetNativePath failed: %x", rv));
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}
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}
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#endif
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PRUint32
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SecondsFromPRTime(PRTime prTime)
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{
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PRInt64 microSecondsPerSecond, intermediateResult;
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PRUint32 seconds;
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LL_I2L(microSecondsPerSecond, PR_USEC_PER_SEC);
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LL_DIV(intermediateResult, prTime, microSecondsPerSecond);
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LL_L2UI(seconds, intermediateResult);
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return seconds;
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}
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PRTime
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PRTimeFromSeconds(PRUint32 seconds)
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{
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PRInt64 microSecondsPerSecond, intermediateResult;
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PRTime prTime;
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LL_I2L(microSecondsPerSecond, PR_USEC_PER_SEC);
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LL_UI2L(intermediateResult, seconds);
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LL_MUL(prTime, intermediateResult, microSecondsPerSecond);
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return prTime;
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}
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nsresult
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ClientIDFromCacheKey(const nsACString& key, char ** result)
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{
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nsresult rv = NS_OK;
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*result = nsnull;
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nsReadingIterator<char> colon;
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key.BeginReading(colon);
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nsReadingIterator<char> start;
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key.BeginReading(start);
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nsReadingIterator<char> end;
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key.EndReading(end);
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if (FindCharInReadable(':', colon, end)) {
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*result = ToNewCString( Substring(start, colon));
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if (!*result) rv = NS_ERROR_OUT_OF_MEMORY;
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} else {
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NS_ASSERTION(false, "FindCharInRead failed to find ':'");
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rv = NS_ERROR_UNEXPECTED;
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}
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return rv;
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}
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nsresult
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ClientKeyFromCacheKey(const nsCString& key, nsACString &result)
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{
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nsresult rv = NS_OK;
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nsReadingIterator<char> start;
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key.BeginReading(start);
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nsReadingIterator<char> end;
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key.EndReading(end);
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if (FindCharInReadable(':', start, end)) {
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++start; // advance past clientID ':' delimiter
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result.Assign(Substring(start, end));
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} else {
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NS_ASSERTION(false, "FindCharInRead failed to find ':'");
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rv = NS_ERROR_UNEXPECTED;
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result.Truncate(0);
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}
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return rv;
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}
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