file.h

#pragma once
#include "io/dir.h"
#include "io/error.h"
#include "object/optional.h"
 
#ifndef CU_FREESTANDING
#include "io/error.h"
#include "io/fd.h"
#include "nostd.h"
#include "object/result.h"
#include <stdbool.h>
#include <stddef.h>
 
typedef struct {
  cu_Handle handle;
  cu_File_Stat stat;
} cu_File;
 
CU_RESULT_DECL(cu_File, cu_File, cu_Io_Error)
 
typedef struct {
  bool read;
  bool write;
  bool create;
  bool append;
  bool truncate;
} cu_File_Options;
 
// Seek operations
typedef enum {
  CU_FILE_SEEK_START,
  CU_FILE_SEEK_CURRENT,
  CU_FILE_SEEK_END
} cu_File_Seek;
 
typedef struct {
  cu_File_Seek whence;
  Size_Optional offset;
} cu_File_SeekTo;
 
// Option setters
static inline void cu_File_Options_read(cu_File_Options *options) {
  options->read = true;
}
 
static inline void cu_File_Options_write(cu_File_Options *options) {
  options->write = true;
}
 
static inline void cu_File_Options_create(cu_File_Options *options) {
  options->create = true;
}
 
static inline void cu_File_Options_append(cu_File_Options *options) {
  options->append = true;
}
 
static inline void cu_File_Options_truncate(cu_File_Options *options) {
  options->truncate = true;
}
 
cu_File_Result cu_File_open(
    cu_Slice path, cu_File_Options options, cu_Allocator allocator);
cu_File_Result cu_Dir_openat(
    cu_Dir *dir, cu_Slice path, cu_File_Options options);
 
void cu_File_close(cu_File *file);
cu_Io_Error_Optional cu_File_read(cu_File *file, cu_Slice buffer);
cu_Io_Error_Optional cu_File_write(cu_File *file, cu_Slice data);
cu_Io_Error_Optional cu_File_seek(cu_File *file, cu_File_SeekTo seek_to);
cu_IoSize_Result cu_File_tell(cu_File *file);
 
#endif // CU_FREESTANDING