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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/fastos/fastos.h>
#include "simple_buffer.h"
namespace vbench {
SimpleBuffer::SimpleBuffer()
: _data(),
_used(0)
{
}
Memory
SimpleBuffer::obtain(size_t bytes, size_t)
{
return Memory(&_data[0], std::min(bytes, _used));
}
Input &
SimpleBuffer::evict(size_t bytes)
{
assert(bytes <= _used);
_data.erase(_data.begin(), _data.begin() + bytes);
_used -= bytes;
return *this;
}
WritableMemory
SimpleBuffer::reserve(size_t bytes)
{
_data.resize(_used + bytes, char(0x55));
return WritableMemory(&_data[_used], bytes);
}
Output &
SimpleBuffer::commit(size_t bytes, size_t)
{
assert(bytes <= (_data.size() - _used));
_used += bytes;
return *this;
}
bool
SimpleBuffer::operator==(const SimpleBuffer &rhs) const
{
Memory a = get();
Memory b = rhs.get();
if (a.size != b.size) {
return false;
}
for (size_t i = 0; i < a.size; ++i) {
if (a.data[i] != b.data[i]) {
return false;
}
}
return true;
}
std::ostream &operator<<(std::ostream &os, const SimpleBuffer &buf) {
Memory memory = buf.get();
uint32_t written = 0;
uint32_t hexCount = 25;
os << "size: " << memory.size << "(bytes)" << std::endl;
for (size_t i = 0; i < memory.size; ++i, ++written) {
if (written > hexCount) {
os << std::endl;
written = 0;
}
os << strfmt("0x%02x ", memory.data[i] & 0xff);
}
if (written > 0) {
os << std::endl;
}
return os;
}
} // namespace vbench
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