firecgi/parse.h

#pragma once

#include <arpa/inet.h>

namespace firecgi {

struct Header {
  Header(uint8_t type_in, uint16_t request_id, uint16_t content_length);

  uint8_t version = 1;
  uint8_t type;

 private:
  uint16_t request_id_;      // network byte order
  uint16_t content_length_;  // network byte order
 public:
  uint8_t padding_length = 0;
  uint8_t reserved = 0;

  uint16_t RequestId() const { return ntohs(request_id_); }
  uint16_t ContentLength() const { return ntohs(content_length_); }

  void SetRequestId(uint16_t request_id) { request_id_ = htons(request_id); }
  void SetContentLength(uint16_t content_length) {
    content_length_ = htons(content_length);
  }
};

struct BeginRequest {
 private:
  uint16_t role_;  // network byte order
 public:
  uint8_t flags;
  uint8_t reserved[5];

  uint16_t Role() const { return ntohs(role_); }
};

struct EndRequest {
  uint32_t app_status = htonl(0);  // network byte order
  uint8_t protocol_status;
  uint8_t reserved[3] = {};
};

struct ParamHeader {
  uint8_t key_length;
  uint8_t value_length;
};

}  // namespace firecgi