132 lines
3.0 KiB
C++
132 lines
3.0 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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/*
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* Updated to use mozilla/base nsFileStream class - spence 02/10/99
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*/
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#include "nsCacheFileStream.h"
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#include "plstr.h"
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#include "prlog.h"
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#ifdef XP_UNIX
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#include "prio.h"
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#include "sys/param.h"
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#include "prsystem.h"
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#endif
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nsCacheFileStream::nsCacheFileStream(const char* i_Filename):m_pFile(0),m_pFilename(0)
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{
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PR_ASSERT(i_Filename);
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if (i_Filename)
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{
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m_pFilename = new char[PL_strlen(i_Filename)+1];
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PL_strcpy(m_pFilename, i_Filename);
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Open();
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}
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}
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nsCacheFileStream::~nsCacheFileStream()
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{
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if (m_pFilename)
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{
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delete[] m_pFilename;
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m_pFilename = 0;
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}
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if (m_pFile)
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m_pFile->close();
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}
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/*
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nsrefcnt nsCacheFileStream::AddRef(void)
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{
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return ++m_RefCnt;
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}
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nsrefcnt nsCacheFileStream::Release(void)
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{
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if (--m_RefCnt == 0)
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{
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delete this;
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return 0;
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}
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return m_RefCnt;
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}
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nsresult nsCacheFileStream::QueryInterface(const nsIID& aIID,
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void** aInstancePtrResult)
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{
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return NS_OK;
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}
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*/
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PRBool nsCacheFileStream::Open()
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{
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if (m_pFile)
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m_pFile->close();
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PR_ASSERT(m_pFilename);
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if (m_pFilename)
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{
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/* does 'browser.cache.directory/<subdir>' exist? */
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char *cacheDir = new char [MAXPATHLEN];
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PRFileInfo dir;
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int slash = PL_strrchr (m_pFilename, PR_GetDirectorySeparator())
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- m_pFilename + 1;
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PL_strncpyz (cacheDir, m_pFilename, slash);
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PRStatus status = PR_GetFileInfo (cacheDir, &dir);
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if (PR_FAILURE == status) {
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status = PR_MkDir(cacheDir, 0600);
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if (PR_SUCCESS != status) {
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return PR_FALSE;
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}
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}
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nsFilePath ioPath (m_pFilename);
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m_pFile = new nsIOFileStream (ioPath, PR_CREATE_FILE | PR_RDWR, 0600);
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PR_ASSERT(m_pFile);
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if (m_pFile)
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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PRInt32 nsCacheFileStream::Read(void* o_Buffer, PRUint32 i_Len)
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{
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if (!m_pFile && !Open())
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return 0;
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return m_pFile->read((void *)o_Buffer, i_Len);
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}
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void nsCacheFileStream::Reset()
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{
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Open();
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}
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PRInt32 nsCacheFileStream::Write(const void* i_Buffer, PRUint32 i_Len)
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{
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if (!m_pFile && !Open())
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return 0;
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return m_pFile->write((void *)i_Buffer, i_Len);
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}
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