fileio.h

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#ifndef NVIM_OS_FILEIO_H
#define NVIM_OS_FILEIO_H

#include <stdbool.h>
#include <stddef.h>

#include "nvim/func_attr.h"
#include "nvim/rbuffer.h"

typedef struct {
  int fd;  
  int _error;  
  RBuffer *rv;  
  bool wr;  
  bool eof;  
  bool non_blocking;  
} FileDescriptor;

typedef enum {
  kFileReadOnly = 1,  
  kFileCreate = 2,  
  kFileWriteOnly = 4,  
  kFileNoSymlink = 8,  
  kFileCreateOnly = 16,  
  kFileTruncate = 32,  
  kFileAppend = 64,  
  kFileNonBlocking = 128,  
} FileOpenFlags;

static inline bool file_eof(const FileDescriptor *const fp)
  REAL_FATTR_PURE REAL_FATTR_WARN_UNUSED_RESULT REAL_FATTR_NONNULL_ALL;

static inline bool file_eof(const FileDescriptor *const fp)
{
  return fp->eof && rbuffer_size(fp->rv) == 0;
}

static inline int file_fd(const FileDescriptor *const fp)
  REAL_FATTR_PURE REAL_FATTR_WARN_UNUSED_RESULT REAL_FATTR_NONNULL_ALL;

static inline int file_fd(const FileDescriptor *const fp)
{
  return fp->fd;
}

enum {
  kRWBufferSize = 1024
};

#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "os/fileio.h.generated.h"
#endif
#endif  // NVIM_OS_FILEIO_H