Differences From Artifact [0bbf55df10]:
- File src/OFStream.m — part of check-in [e40729d406] at 2013-02-12 18:22:15 on branch trunk — Prefix all ivars with an underscore. (user: js, size: 29855) [annotate] [blame] [check-ins using]
To Artifact [826cbee6d8]:
- File
src/OFStream.m
— part of check-in
[efe7be259d]
at
2013-02-18 21:53:56
on branch trunk
— Rename -[OFStream pendingBytes].
It is now called -[numberOfBytesInReadBuffer].
Additionally, this commit renames OFStream's _cache to _readBuffer. (user: js, size: 30470) [annotate] [blame] [check-ins using]
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- copy
{
return [self retain];
}
- (BOOL)isAtEndOfStream
{
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- copy
{
return [self retain];
}
- (BOOL)isAtEndOfStream
{
if (_readBufferLength > 0)
return NO;
return [self lowlevelIsAtEndOfStream];
}
- (size_t)readIntoBuffer: (void*)buffer
length: (size_t)length
{
if (_readBufferLength == 0)
return [self lowlevelReadIntoBuffer: buffer
length: length];
if (length >= _readBufferLength) {
size_t ret = _readBufferLength;
memcpy(buffer, _readBuffer, _readBufferLength);
[self freeMemory: _readBuffer];
_readBuffer = NULL;
_readBufferLength = 0;
return ret;
} else {
char *tmp;
tmp = [self allocMemoryWithSize: _readBufferLength - length];
memcpy(tmp, _readBuffer + length, _readBufferLength - length);
memcpy(buffer, _readBuffer, length);
[self freeMemory: _readBuffer];
_readBuffer = tmp;
_readBufferLength -= length;
return length;
}
}
- (void)readIntoBuffer: (void*)buffer
exactLength: (size_t)length
|
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return ret;
}
- (OFString*)tryReadLineWithEncoding: (of_string_encoding_t)encoding
{
size_t i, pageSize, bufferLength, retLength;
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return ret;
}
- (OFString*)tryReadLineWithEncoding: (of_string_encoding_t)encoding
{
size_t i, pageSize, bufferLength, retLength;
char *retCString, *buffer, *readBuffer;
OFString *ret;
/* Look if there's a line or \0 in our buffer */
if (!_waitingForDelimiter && _readBuffer != NULL) {
for (i = 0; i < _readBufferLength; i++) {
if OF_UNLIKELY (_readBuffer[i] == '\n' ||
_readBuffer[i] == '\0') {
retLength = i;
if (i > 0 && _readBuffer[i - 1] == '\r')
retLength--;
ret = [OFString stringWithCString: _readBuffer
encoding: encoding
length: retLength];
readBuffer = [self allocMemoryWithSize:
_readBufferLength - i - 1];
if (readBuffer != NULL)
memcpy(readBuffer, _readBuffer + i + 1,
_readBufferLength - i - 1);
[self freeMemory: _readBuffer];
_readBuffer = readBuffer;
_readBufferLength -= i + 1;
_waitingForDelimiter = NO;
return ret;
}
}
}
/* Read and see if we got a newline or \0 */
pageSize = [OFSystemInfo pageSize];
buffer = [self allocMemoryWithSize: pageSize];
@try {
if ([self lowlevelIsAtEndOfStream]) {
if (_readBuffer == NULL) {
_waitingForDelimiter = NO;
return nil;
}
retLength = _readBufferLength;
if (retLength > 0 && _readBuffer[retLength - 1] == '\r')
retLength--;
ret = [OFString stringWithCString: _readBuffer
encoding: encoding
length: retLength];
[self freeMemory: _readBuffer];
_readBuffer = NULL;
_readBufferLength = 0;
_waitingForDelimiter = NO;
return ret;
}
bufferLength = [self lowlevelReadIntoBuffer: buffer
length: pageSize];
/* Look if there's a newline or \0 */
for (i = 0; i < bufferLength; i++) {
if OF_UNLIKELY (buffer[i] == '\n' ||
buffer[i] == '\0') {
retLength = _readBufferLength + i;
retCString = [self
allocMemoryWithSize: retLength];
if (_readBuffer != NULL)
memcpy(retCString, _readBuffer,
_readBufferLength);
memcpy(retCString + _readBufferLength,
buffer, i);
if (retLength > 0 &&
retCString[retLength - 1] == '\r')
retLength--;
@try {
char *rcs = retCString;
size_t rl = retLength;
ret = [OFString
stringWithCString: rcs
encoding: encoding
length: rl];
} @catch (id e) {
/*
* Append data to readBuffer to prevent
* loss of data due to wrong encoding.
*/
_readBuffer = [self
resizeMemory: _readBuffer
size: _readBufferLength +
bufferLength];
if (_readBuffer != NULL)
memcpy(_readBuffer +
_readBufferLength,
buffer, bufferLength);
_readBufferLength += bufferLength;
@throw e;
} @finally {
[self freeMemory: retCString];
}
readBuffer = [self
allocMemoryWithSize: bufferLength - i - 1];
if (readBuffer != NULL)
memcpy(readBuffer, buffer + i + 1,
bufferLength - i - 1);
[self freeMemory: _readBuffer];
_readBuffer = readBuffer;
_readBufferLength = bufferLength - i - 1;
_waitingForDelimiter = NO;
return ret;
}
}
/* There was no newline or \0 */
_readBuffer = [self resizeMemory: _readBuffer
size: _readBufferLength +
bufferLength];
/*
* It's possible that _readBufferLength + bufferLength is 0 and
* thus _readBuffer was set to NULL by resizeMemory:size:.
*/
if (_readBuffer != NULL)
memcpy(_readBuffer + _readBufferLength,
buffer, bufferLength);
_readBufferLength += bufferLength;
} @finally {
[self freeMemory: buffer];
}
_waitingForDelimiter = YES;
return nil;
}
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}
- (OFString*)tryReadTillDelimiter: (OFString*)delimiter
encoding: (of_string_encoding_t)encoding
{
const char *delimiterCString;
size_t i, j, delimiterLength, pageSize, bufferLength, retLength;
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}
- (OFString*)tryReadTillDelimiter: (OFString*)delimiter
encoding: (of_string_encoding_t)encoding
{
const char *delimiterCString;
size_t i, j, delimiterLength, pageSize, bufferLength, retLength;
char *retCString, *buffer, *readBuffer;
OFString *ret;
delimiterCString = [delimiter cStringWithEncoding: encoding];
delimiterLength = [delimiter cStringLengthWithEncoding: encoding];
j = 0;
if (delimiterLength == 0)
@throw [OFInvalidArgumentException
exceptionWithClass: [self class]
selector: _cmd];
/* Look if there's something in our buffer */
if (!_waitingForDelimiter && _readBuffer != NULL) {
for (i = 0; i < _readBufferLength; i++) {
if (_readBuffer[i] != delimiterCString[j++])
j = 0;
if (j == delimiterLength || _readBuffer[i] == '\0') {
if (_readBuffer[i] == '\0')
delimiterLength = 1;
ret = [OFString
stringWithCString: _readBuffer
encoding: encoding
length: i + 1 - delimiterLength];
readBuffer = [self allocMemoryWithSize:
_readBufferLength - i - 1];
if (readBuffer != NULL)
memcpy(readBuffer, _readBuffer + i + 1,
_readBufferLength - i - 1);
[self freeMemory: _readBuffer];
_readBuffer = readBuffer;
_readBufferLength -= i + 1;
_waitingForDelimiter = NO;
return ret;
}
}
}
/* Read and see if we got a delimiter or \0 */
pageSize = [OFSystemInfo pageSize];
buffer = [self allocMemoryWithSize: pageSize];
@try {
if ([self lowlevelIsAtEndOfStream]) {
if (_readBuffer == NULL) {
_waitingForDelimiter = NO;
return nil;
}
ret = [OFString stringWithCString: _readBuffer
encoding: encoding
length: _readBufferLength];
[self freeMemory: _readBuffer];
_readBuffer = NULL;
_readBufferLength = 0;
_waitingForDelimiter = NO;
return ret;
}
bufferLength = [self lowlevelReadIntoBuffer: buffer
length: pageSize];
/* Look if there's a delimiter or \0 */
for (i = 0; i < bufferLength; i++) {
if (buffer[i] != delimiterCString[j++])
j = 0;
if (j == delimiterLength || buffer[i] == '\0') {
if (buffer[i] == '\0')
delimiterLength = 1;
retLength = _readBufferLength + i + 1 -
delimiterLength;
retCString = [self
allocMemoryWithSize: retLength];
if (_readBuffer != NULL &&
_readBufferLength <= retLength)
memcpy(retCString, _readBuffer,
_readBufferLength);
else if (_readBuffer != NULL)
memcpy(retCString, _readBuffer,
retLength);
if (i >= delimiterLength)
memcpy(retCString + _readBufferLength,
buffer, i + 1 - delimiterLength);
@try {
char *rcs = retCString;
size_t rl = retLength;
ret = [OFString
stringWithCString: rcs
encoding: encoding
length: rl];
} @finally {
[self freeMemory: retCString];
}
readBuffer = [self allocMemoryWithSize:
bufferLength - i - 1];
if (readBuffer != NULL)
memcpy(readBuffer, buffer + i + 1,
bufferLength - i - 1);
[self freeMemory: _readBuffer];
_readBuffer = readBuffer;
_readBufferLength = bufferLength - i - 1;
_waitingForDelimiter = NO;
return ret;
}
}
/* Neither the delimiter nor \0 was found */
_readBuffer = [self resizeMemory: _readBuffer
size: _readBufferLength +
bufferLength];
/*
* It's possible that _readBufferLength + bufferLength is 0 and
* thus _readBuffer was set to NULL by resizeMemory:size:.
*/
if (_readBuffer != NULL)
memcpy(_readBuffer + _readBufferLength,
buffer, bufferLength);
_readBufferLength += bufferLength;
} @finally {
[self freeMemory: buffer];
}
_waitingForDelimiter = YES;
return nil;
}
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} @finally {
free(UTF8String);
}
return length;
}
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} @finally {
free(UTF8String);
}
return length;
}
- (size_t)numberOfBytesInReadBuffer
{
return _readBufferLength;
}
- (BOOL)isBlocking
{
return _blocking;
}
|
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