a47d20f8be
Administrative source import: native x86 compilation passed for 423 authored units. Source placement and submission states are migrated separately; this commit does not imply peer acceptance.
Previous head: 35d2a8cb36
Payload SHA256: 592f016d2730c5593bb653aa054c1e5f76a6df72c8f5a09e66f74876e2e33dee
96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
#include "Network/Connection/ConnectionBuffer.h"
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#include <algorithm>
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#include <cstring>
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// OFFSET: 0x00C7EF60
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// FUNCTION: fn_20418
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ConnectionBuffer::ConnectionBuffer() : m_data(nullptr) {
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}
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// OFFSET: 0x00C7EFC0
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// FUNCTION: fn_20419
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ConnectionBuffer::~ConnectionBuffer() = default;
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// OFFSET: 0x00C7F060
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// FUNCTION: fn_20422
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void ConnectionBuffer::Reset(unsigned bytes) {
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this->m_read = 0;
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this->m_write = 0;
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this->m_storage.resize(bytes);
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this->m_data = this->m_storage.empty() ? nullptr : this->m_storage.data();
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}
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// OFFSET: 0x00C7F050
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// FUNCTION: fn_20421
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int ConnectionBuffer::Available() const {
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return this->m_write - this->m_read;
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}
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// OFFSET: 0x00C7F0E0
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// FUNCTION: fn_20423
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void ConnectionBuffer::Append(int bytes, const void* source) {
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const int size = static_cast<int>(this->m_storage.size());
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if ((this->m_write + bytes) > size) {
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const int required = (this->Available() + bytes);
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if (required > size) {
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this->m_storage.resize(static_cast<unsigned>(required) * 2u);
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this->m_data = this->m_storage.data();
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}
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std::memmove(this->m_data, this->m_data + this->m_read, this->Available());
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this->m_write = this->Available();
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this->m_read = 0;
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}
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std::memcpy(this->m_data + this->m_write, source, bytes);
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this->m_write = (this->m_write + bytes);
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}
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// OFFSET: 0x00C7F160
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// FUNCTION: fn_20424
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void ConnectionBuffer::Prepend(int bytes, const void* source) {
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const int available = this->Available();
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const int required = (bytes + available);
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std::vector<char> storage(static_cast<unsigned>(std::max(required, static_cast<int>(this->m_storage.size()))));
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std::memcpy(storage.data(), source, bytes);
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std::memcpy(storage.data() + bytes, this->m_data + this->m_read, available);
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this->m_write = required;
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this->m_read = 0;
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this->m_storage.swap(storage);
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this->m_data = this->m_storage.data();
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}
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// OFFSET: 0x00C7F010
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// FUNCTION: fn_20420
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bool ConnectionBuffer::Read(int bytes, void* destination) {
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if (this->Available() < bytes) {
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return false;
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}
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std::memcpy(destination, this->m_data + this->m_read, bytes);
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this->m_read = (this->m_read + bytes);
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return true;
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}
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// OFFSET: 0x00C7F2B0
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// FUNCTION: fn_20425
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bool ConnectionBuffer::Peek(int bytes, void* destination) const {
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if (this->m_write - this->m_read < bytes) {
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return false;
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}
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std::memcpy(destination, this->m_data + this->m_read, bytes);
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return true;
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}
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// OFFSET: 0x00C7F2E0
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// FUNCTION: fn_20426
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bool ConnectionBuffer::Consume(int bytes) {
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if (this->m_write - this->m_read < bytes) {
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return false;
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}
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this->m_read += bytes;
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return true;
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}
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