summaryrefslogtreecommitdiffstats
path: root/kopete/protocols/jabber/jingle/libjingle/talk/base/bytebuffer.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'kopete/protocols/jabber/jingle/libjingle/talk/base/bytebuffer.cpp')
-rw-r--r--kopete/protocols/jabber/jingle/libjingle/talk/base/bytebuffer.cpp166
1 files changed, 166 insertions, 0 deletions
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/base/bytebuffer.cpp b/kopete/protocols/jabber/jingle/libjingle/talk/base/bytebuffer.cpp
new file mode 100644
index 00000000..e3af08b7
--- /dev/null
+++ b/kopete/protocols/jabber/jingle/libjingle/talk/base/bytebuffer.cpp
@@ -0,0 +1,166 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/basictypes.h"
+#include "talk/base/bytebuffer.h"
+#include "talk/base/byteorder.h"
+#include <algorithm>
+#include <cassert>
+#include <cstring>
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+namespace std {
+ using ::memcpy;
+}
+#endif
+
+namespace cricket {
+
+const int DEFAULT_SIZE = 4096;
+
+ByteBuffer::ByteBuffer() {
+ start_ = 0;
+ end_ = 0;
+ size_ = DEFAULT_SIZE;
+ bytes_ = new char[size_];
+}
+
+ByteBuffer::ByteBuffer(const char* bytes, size_t len) {
+ start_ = 0;
+ end_ = len;
+ size_ = len;
+ bytes_ = new char[size_];
+ memcpy(bytes_, bytes, end_);
+}
+
+ByteBuffer::ByteBuffer(const char* bytes) {
+ start_ = 0;
+ end_ = strlen(bytes);
+ size_ = end_;
+ bytes_ = new char[size_];
+ memcpy(bytes_, bytes, end_);
+}
+
+ByteBuffer::~ByteBuffer() {
+ delete bytes_;
+}
+
+bool ByteBuffer::ReadUInt8(uint8& val) {
+ return ReadBytes(reinterpret_cast<char*>(&val), 1);
+}
+
+bool ByteBuffer::ReadUInt16(uint16& val) {
+ uint16 v;
+ if (!ReadBytes(reinterpret_cast<char*>(&v), 2)) {
+ return false;
+ } else {
+ val = NetworkToHost16(v);
+ return true;
+ }
+}
+
+bool ByteBuffer::ReadUInt32(uint32& val) {
+ uint32 v;
+ if (!ReadBytes(reinterpret_cast<char*>(&v), 4)) {
+ return false;
+ } else {
+ val = NetworkToHost32(v);
+ return true;
+ }
+}
+
+bool ByteBuffer::ReadString(std::string& val, size_t len) {
+ if (len > Length()) {
+ return false;
+ } else {
+ val.append(bytes_ + start_, len);
+ start_ += len;
+ return true;
+ }
+}
+
+bool ByteBuffer::ReadBytes(char* val, size_t len) {
+ if (len > Length()) {
+ return false;
+ } else {
+ memcpy(val, bytes_ + start_, len);
+ start_ += len;
+ return true;
+ }
+}
+
+void ByteBuffer::WriteUInt8(uint8 val) {
+ WriteBytes(reinterpret_cast<const char*>(&val), 1);
+}
+
+void ByteBuffer::WriteUInt16(uint16 val) {
+ uint16 v = HostToNetwork16(val);
+ WriteBytes(reinterpret_cast<const char*>(&v), 2);
+}
+
+void ByteBuffer::WriteUInt32(uint32 val) {
+ uint32 v = HostToNetwork32(val);
+ WriteBytes(reinterpret_cast<const char*>(&v), 4);
+}
+
+void ByteBuffer::WriteString(const std::string& val) {
+ WriteBytes(val.c_str(), val.size());
+}
+
+void ByteBuffer::WriteBytes(const char* val, size_t len) {
+ if (Length() + len > Capacity())
+ Resize(Length() + len);
+
+ memcpy(bytes_ + end_, val, len);
+ end_ += len;
+}
+
+void ByteBuffer::Resize(size_t size) {
+ if (size > size_)
+ size = _max(size, 3 * size_ / 2);
+
+ size_t len = _min(end_ - start_, size);
+ char* new_bytes = new char[size];
+ memcpy(new_bytes, bytes_ + start_, len);
+ delete [] bytes_;
+
+ start_ = 0;
+ end_ = len;
+ size_ = size;
+ bytes_ = new_bytes;
+}
+
+void ByteBuffer::Shift(size_t size) {
+ if (size > Length())
+ return;
+
+ end_ = Length() - size;
+ memmove(bytes_, bytes_ + start_ + size, end_);
+ start_ = 0;
+}
+
+} // namespace cricket