mdl_fetch_body_internal.h

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#pragma once
 
#include <limits.h>
#include <stddef.h>
#include <stdint.h>
 
#include "mdl_net.h"
#include "mdl_state.h"
#include "mdl_storage.h"
#include "ra8_attributes.h"
#include "ra8_err.h"

typedef enum : uint8_t {
  k_mdl_fetch_magic_bytes = 16U, 
} mdl_fetch_body_limit_t;

typedef enum : uint8_t {
  k_mdl_fetch_body_exact = 0U, 
  k_mdl_fetch_body_image = 1U, 
} mdl_fetch_body_mode_t;

typedef struct {
  mdl_storage_t*        storage;                         
  const char*           target_abs;                      
  const char*           target_rel;                      
  mdl_fetch_body_mode_t mode;                            
  mdl_storage_txn_t     writer;                          
  uint8_t               prefix[k_mdl_fetch_magic_bytes]; 
  uint8_t               prefix_bytes;                    
  uint64_t              received;                        
  char                  actual_abs[PATH_MAX];            
  char                  actual_rel[k_mdl_relpath_max];   
} mdl_fetch_body_t;

RA8_PRIV ra8_err_t priv_mdl_fetch_body_init_exact(mdl_fetch_body_t* body,
                                                  mdl_storage_t*    storage,
                                                  const char*       target_abs);

RA8_PRIV ra8_err_t priv_mdl_fetch_body_init_image(mdl_fetch_body_t* body,
                                                  mdl_storage_t*    storage,
                                                  const char*       target_abs,
                                                  const char*       target_rel);

RA8_PRIV mdl_net_body_sink_t priv_mdl_fetch_body_sink(mdl_fetch_body_t* body);

RA8_PRIV ra8_err_t priv_mdl_fetch_body_prepare(mdl_fetch_body_t* body);

RA8_PRIV ra8_err_t priv_mdl_fetch_body_commit(mdl_fetch_body_t* body);

RA8_PRIV ra8_err_t priv_mdl_fetch_body_abort(mdl_fetch_body_t* body);