gecko-dev/xpcom/io/nsStorageStream.h
Ehsan Akhgari e368dc9c85 Bug 579517 - Part 1: Automated conversion of NSPR numeric types to stdint types in Gecko; r=bsmedberg
This patch was generated by a script.  Here's the source of the script for
future reference:

function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
       ! -wholename "*security/nss*" \
       ! -wholename "*/.hg*" \
       ! -wholename "obj-ff-dbg*" \
       ! -name nsXPCOMCID.h \
       ! -name prtypes.h \
         -type f \
      \( -iname "*.cpp" \
         -o -iname "*.h" \
         -o -iname "*.c" \
         -o -iname "*.cc" \
         -o -iname "*.idl" \
         -o -iname "*.ipdl" \
         -o -iname "*.ipdlh" \
         -o -iname "*.mm" \) | \
    xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}

convert PRInt8 int8_t
convert PRUint8 uint8_t
convert PRInt16 int16_t
convert PRUint16 uint16_t
convert PRInt32 int32_t
convert PRUint32 uint32_t
convert PRInt64 int64_t
convert PRUint64 uint64_t

convert PRIntn int
convert PRUintn unsigned

convert PRSize size_t

convert PROffset32 int32_t
convert PROffset64 int64_t

convert PRPtrdiff ptrdiff_t

convert PRFloat64 double
2012-08-22 11:56:38 -04:00

67 lines
2.6 KiB
C++

/* -*- 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/. */
/*
* The storage stream provides an internal buffer that can be filled by a
* client using a single output stream. One or more independent input streams
* can be created to read the data out non-destructively. The implementation
* uses a segmented buffer internally to avoid realloc'ing of large buffers,
* with the attendant performance loss and heap fragmentation.
*/
#ifndef _nsStorageStream_h_
#define _nsStorageStream_h_
#include "nsIStorageStream.h"
#include "nsIOutputStream.h"
#include "nsMemory.h"
#include "mozilla/Attributes.h"
#define NS_STORAGESTREAM_CID \
{ /* 669a9795-6ff7-4ed4-9150-c34ce2971b63 */ \
0x669a9795, \
0x6ff7, \
0x4ed4, \
{0x91, 0x50, 0xc3, 0x4c, 0xe2, 0x97, 0x1b, 0x63} \
}
#define NS_STORAGESTREAM_CONTRACTID "@mozilla.org/storagestream;1"
#define NS_STORAGESTREAM_CLASSNAME "Storage Stream"
class nsSegmentedBuffer;
class nsStorageStream MOZ_FINAL : public nsIStorageStream,
public nsIOutputStream
{
public:
nsStorageStream();
NS_DECL_ISUPPORTS
NS_DECL_NSISTORAGESTREAM
NS_DECL_NSIOUTPUTSTREAM
friend class nsStorageInputStream;
private:
~nsStorageStream();
nsSegmentedBuffer* mSegmentedBuffer;
uint32_t mSegmentSize; // All segments, except possibly the last, are of this size
// Must be power-of-2
uint32_t mSegmentSizeLog2; // log2(mSegmentSize)
bool mWriteInProgress; // true, if an un-Close'ed output stream exists
int32_t mLastSegmentNum; // Last segment # in use, -1 initially
char* mWriteCursor; // Pointer to next byte to be written
char* mSegmentEnd; // Pointer to one byte after end of segment
// containing the write cursor
uint32_t mLogicalLength; // Number of bytes written to stream
NS_METHOD Seek(int32_t aPosition);
uint32_t SegNum(uint32_t aPosition) {return aPosition >> mSegmentSizeLog2;}
uint32_t SegOffset(uint32_t aPosition) {return aPosition & (mSegmentSize - 1);}
};
#endif // _nsStorageStream_h_