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author | Rafael H. Schloming <rhs@apache.org> | 2006-09-19 22:06:50 +0000 |
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committer | Rafael H. Schloming <rhs@apache.org> | 2006-09-19 22:06:50 +0000 |
commit | 913489deb2ee9dbf44455de5f407ddaf4bd8c540 (patch) | |
tree | 7ea442d6867d0076f1c9ea4f4265664059e7aff5 /cpp/common/framing/src/Buffer.cpp | |
download | qpid-python-913489deb2ee9dbf44455de5f407ddaf4bd8c540.tar.gz |
Import of qpid from etp:
URL: https://etp.108.redhat.com/svn/etp/trunk/blaze
Repository Root: https://etp.108.redhat.com/svn/etp
Repository UUID: 06e15bec-b515-0410-bef0-cc27a458cf48
Revision: 608
git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@447994 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'cpp/common/framing/src/Buffer.cpp')
-rw-r--r-- | cpp/common/framing/src/Buffer.cpp | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/cpp/common/framing/src/Buffer.cpp b/cpp/common/framing/src/Buffer.cpp new file mode 100644 index 0000000000..5264491980 --- /dev/null +++ b/cpp/common/framing/src/Buffer.cpp @@ -0,0 +1,167 @@ +/* + * + * Copyright (c) 2006 The Apache Software Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ +#include "Buffer.h" + +qpid::framing::Buffer::Buffer(int _size) : size(_size), position(0), limit(_size){ + data = new char[size]; +} + +qpid::framing::Buffer::~Buffer(){ + delete[] data; +} + +void qpid::framing::Buffer::flip(){ + limit = position; + position = 0; +} + +void qpid::framing::Buffer::clear(){ + limit = size; + position = 0; +} + +void qpid::framing::Buffer::compact(){ + int p = limit - position; + //copy p chars from position to 0 + memmove(data, data + position, p); + limit = size; + position = p; +} + +void qpid::framing::Buffer::record(){ + r_position = position; + r_limit = limit; +} + +void qpid::framing::Buffer::restore(){ + position = r_position; + limit = r_limit; +} + +int qpid::framing::Buffer::available(){ + return limit - position; +} + +char* qpid::framing::Buffer::start(){ + return data + position; +} + +void qpid::framing::Buffer::move(int bytes){ + position += bytes; +} + +void qpid::framing::Buffer::putOctet(u_int8_t i){ + data[position++] = i; +} + +void qpid::framing::Buffer::putShort(u_int16_t i){ + u_int16_t b = i; + data[position++] = (u_int8_t) (0xFF & (b >> 8)); + data[position++] = (u_int8_t) (0xFF & b); +} + +void qpid::framing::Buffer::putLong(u_int32_t i){ + u_int32_t b = i; + data[position++] = (u_int8_t) (0xFF & (b >> 24)); + data[position++] = (u_int8_t) (0xFF & (b >> 16)); + data[position++] = (u_int8_t) (0xFF & (b >> 8)); + data[position++] = (u_int8_t) (0xFF & b); +} + +void qpid::framing::Buffer::putLongLong(u_int64_t i){ + u_int32_t hi = i >> 32; + u_int32_t lo = i; + putLong(hi); + putLong(lo); +} + +u_int8_t qpid::framing::Buffer::getOctet(){ + return (u_int8_t) data[position++]; +} + +u_int16_t qpid::framing::Buffer::getShort(){ + u_int16_t hi = (unsigned char) data[position++]; + hi = hi << 8; + hi |= (unsigned char) data[position++]; + return hi; +} + +u_int32_t qpid::framing::Buffer::getLong(){ + u_int32_t a = (unsigned char) data[position++]; + u_int32_t b = (unsigned char) data[position++]; + u_int32_t c = (unsigned char) data[position++]; + u_int32_t d = (unsigned char) data[position++]; + a = a << 24; + a |= b << 16; + a |= c << 8; + a |= d; + return a; +} + +u_int64_t qpid::framing::Buffer::getLongLong(){ + u_int64_t hi = getLong(); + u_int64_t lo = getLong(); + hi = hi << 32; + return hi | lo; +} + + +void qpid::framing::Buffer::putShortString(const string& s){ + u_int8_t size = s.length(); + putOctet(size); + s.copy(data + position, size); + position += size; +} + +void qpid::framing::Buffer::putLongString(const string& s){ + u_int32_t size = s.length(); + putLong(size); + s.copy(data + position, size); + position += size; +} + +void qpid::framing::Buffer::getShortString(string& s){ + u_int8_t size = getOctet(); + s.assign(data + position, size); + position += size; +} + +void qpid::framing::Buffer::getLongString(string& s){ + u_int32_t size = getLong(); + s.assign(data + position, size); + position += size; +} + +void qpid::framing::Buffer::putFieldTable(const FieldTable& t){ + t.encode(*this); +} + +void qpid::framing::Buffer::getFieldTable(FieldTable& t){ + t.decode(*this); +} + +void qpid::framing::Buffer::putRawData(const string& s){ + u_int32_t size = s.length(); + s.copy(data + position, size); + position += size; +} + +void qpid::framing::Buffer::getRawData(string& s, u_int32_t size){ + s.assign(data + position, size); + position += size; +} |