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trunk/branch integration: optimalization

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This commit is contained in:
Marian Krivos
2011-08-23 06:38:28 +00:00
parent 22575c3a90
commit dd89dc0da6
4 changed files with 200 additions and 115 deletions
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57
Foundation/src/Base64Decoder.cpp
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@@ -1,7 +1,7 @@
//
// Base64Decoder.cpp
//
// $Id: //poco/svn/Foundation/src/Base64Decoder.cpp#2 $
// $Id: //poco/1.4/Foundation/src/Base64Decoder.cpp#2 $
//
// Library: Foundation
// Package: Streams
@@ -47,15 +47,20 @@ unsigned char Base64DecoderBuf::IN_ENCODING[256];
bool Base64DecoderBuf::IN_ENCODING_INIT = false;
Base64DecoderBuf::Base64DecoderBuf(std::istream& istr):
_groupLength(0),
_groupIndex(0),
_istr(istr)
namespace
{
static FastMutex mutex;
FastMutex::ScopedLock lock(mutex);
if (!IN_ENCODING_INIT)
{
static FastMutex mutex;
}
Base64DecoderBuf::Base64DecoderBuf(std::istream& istr):
_groupLength(0),
_groupIndex(0),
_buf(*istr.rdbuf())
{
FastMutex::ScopedLock lock(mutex);
if (!IN_ENCODING_INIT)
{
for (unsigned i = 0; i < sizeof(IN_ENCODING); i++)
{
IN_ENCODING[i] = 0xFF;
@@ -85,19 +90,19 @@ int Base64DecoderBuf::readFromDevice()
{
unsigned char buffer[4];
int c;
if ((c = readOne()) == -1) return -1;
buffer[0] = (unsigned char) c;
if (IN_ENCODING[buffer[0]] == 0xFF) throw DataFormatException();
if ((c = readOne()) == -1) return -1;
buffer[1] = (unsigned char) c;
if (IN_ENCODING[buffer[1]] == 0xFF) throw DataFormatException();
if ((c = readOne()) == -1) return -1;
buffer[2] = c;
if (IN_ENCODING[buffer[2]] == 0xFF) throw DataFormatException();
if ((c = readOne()) == -1) return -1;
buffer[3] = c;
if (IN_ENCODING[buffer[3]] == 0xFF) throw DataFormatException();
if ((c = readOne()) == -1) return -1;
buffer[0] = (unsigned char) c;
if (IN_ENCODING[buffer[0]] == 0xFF) throw DataFormatException();
if ((c = readOne()) == -1) throw DataFormatException();
buffer[1] = (unsigned char) c;
if (IN_ENCODING[buffer[1]] == 0xFF) throw DataFormatException();
if ((c = readOne()) == -1) throw DataFormatException();
buffer[2] = c;
if (IN_ENCODING[buffer[2]] == 0xFF) throw DataFormatException();
if ((c = readOne()) == -1) throw DataFormatException();
buffer[3] = c;
if (IN_ENCODING[buffer[3]] == 0xFF) throw DataFormatException();
_group[0] = (IN_ENCODING[buffer[0]] << 2) | (IN_ENCODING[buffer[1]] >> 4);
_group[1] = ((IN_ENCODING[buffer[1]] & 0x0F) << 4) | (IN_ENCODING[buffer[2]] >> 2);
_group[2] = (IN_ENCODING[buffer[2]] << 6) | IN_ENCODING[buffer[3]];
@@ -116,10 +121,10 @@ int Base64DecoderBuf::readFromDevice()
int Base64DecoderBuf::readOne()
{
int ch = _istr.get();
while (ch == ' ' || ch == '\r' || ch == '\t' || ch == '\n')
ch = _istr.get();
return ch;
int ch = _buf.sbumpc();
while (ch == ' ' || ch == '\r' || ch == '\t' || ch == '\n')
ch = _buf.sbumpc();
return ch;
}