100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
#include "ZlibBase.h"
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#include <cstring>
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#include <cstdlib>
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namespace ZlibCpp {
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ZlibBase::ZlibBase() : initialized_(false) {
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std::memset(&stream_, 0, sizeof(z_stream));
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InitializeAllocators();
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}
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ZlibBase::~ZlibBase() {
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// 不在基类析构函数中调用纯虚函数
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// 派生类应该在自己的析构函数中调用Cleanup()
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}
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ZlibBase::ZlibBase(ZlibBase&& other) noexcept
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: stream_(other.stream_), initialized_(other.initialized_) {
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// 重置other对象的状态
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std::memset(&other.stream_, 0, sizeof(z_stream));
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other.initialized_ = false;
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}
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ZlibBase& ZlibBase::operator=(ZlibBase&& other) noexcept {
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if (this != &other) { // 清理当前对象
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if (initialized_) {
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Cleanup();
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} // 移动other的状态
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stream_ = other.stream_;
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initialized_ = other.initialized_; // 重置other对象的状态
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std::memset(&other.stream_, 0, sizeof(z_stream));
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other.initialized_ = false;
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}
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return *this;
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}
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size_t ZlibBase::GetTotalInput() const {
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return stream_.total_in;
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}
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size_t ZlibBase::GetTotalOutput() const {
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return stream_.total_out;
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}
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uint32_t ZlibBase::GetAdler32() const {
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return stream_.adler;
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}
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bool ZlibBase::IsInitialized() const {
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return initialized_;
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}
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void ZlibBase::CheckResult(int result, const std::string& operation) const {
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switch (result) {
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case Z_OK:
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case Z_STREAM_END:
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case Z_NEED_DICT:
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// 这些都是正常或可处理的状态
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return;
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case Z_ERRNO:
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throw ZlibException("系统错误: " + operation, result);
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case Z_STREAM_ERROR:
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throw ZlibStreamException("流错误: " + operation);
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case Z_DATA_ERROR:
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throw ZlibDataException("数据错误: " + operation);
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case Z_MEM_ERROR:
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throw ZlibMemoryException("内存不足: " + operation);
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case Z_BUF_ERROR:
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throw ZlibBufferException("缓冲区错误: " + operation);
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case Z_VERSION_ERROR:
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throw ZlibVersionException("版本错误: " + operation);
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default:
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throw ZlibException("未知错误: " + operation + " (错误码: " + std::to_string(result) + ")", result);
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}
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}
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void ZlibBase::InitializeAllocators() {
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stream_.zalloc = AllocFunction;
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stream_.zfree = FreeFunction;
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stream_.opaque = nullptr;
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}
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voidpf ZlibBase::AllocFunction(voidpf opaque, uInt items, uInt size) {
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(void)opaque; // 未使用的参数
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return std::malloc(items * size);
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}
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void ZlibBase::FreeFunction(voidpf opaque, voidpf address) {
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(void)opaque; // 未使用的参数
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std::free(address);
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}
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} // namespace ZlibCpp
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