mirror of
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154 lines
4.3 KiB
C++
154 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** 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 nsCache.cpp, released
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* March 18, 2001.
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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) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Gordon Sheridan <gordon@netscape.com>
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* Patrick C. Beard <beard@netscape.com>
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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 "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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