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http文件服务器mmap方案采用共享方式

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ziyue
2022-02-10 20:23:37 +08:00
parent 72caa43c97
commit ba213346bc
3 changed files with 138 additions and 139 deletions
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24
src/Http/HttpBody.h
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@@ -104,32 +104,32 @@ private:
/**
* 文件类型的content
*/
class HttpFileBody : public HttpBody{
class HttpFileBody : public HttpBody {
public:
typedef std::shared_ptr<HttpFileBody> Ptr;
/**
* 构造函数
* @param fp 文件句柄，文件的偏移量必须为0
* @param offset 相对文件头的偏移量
* @param max_size 最大读取字节数，未判断是否大于文件真实大小
* @param file_path 文件路径
* @param use_mmap 是否使用mmap方式访问文件
*/
HttpFileBody(const std::shared_ptr<FILE> &fp, size_t offset, size_t max_size, bool use_mmap = true);
HttpFileBody(const std::string &file_path, bool use_mmap = true);
~HttpFileBody() override = default;
ssize_t remainSize() override ;
/**
* 设置读取范围
* @param offset 相对文件头的偏移量
* @param max_size 最大读取字节数
*/
void setRange(uint64_t offset, uint64_t max_size);
ssize_t remainSize() override;
toolkit::Buffer::Ptr readData(size_t size) override;
int sendFile(int fd) override;
private:
void init(const std::shared_ptr<FILE> &fp,size_t offset,size_t max_size, bool use_mmap);
private:
size_t _max_size;
size_t _offset = 0;
size_t _file_offset = 0;
int64_t _read_to = 0;
uint64_t _file_offset = 0;
std::shared_ptr<FILE> _fp;
std::shared_ptr<char> _map_addr;
toolkit::ResourcePool<toolkit::BufferRaw> _pool;