neovim

Neovim text editor
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fileio.h (1514B)

      1 #pragma once
      2 
      3 #include <stddef.h>  // IWYU pragma: keep
      4 
      5 #include "nvim/memory_defs.h"
      6 #include "nvim/os/fileio_defs.h"  // IWYU pragma: keep
      7 
      8 /// file_open() flags
      9 typedef enum {
     10  kFileReadOnly = 1,  ///< Open file read-only. Default.
     11  kFileCreate = 2,  ///< Create file if it does not exist yet.
     12                    ///< Implies kFileWriteOnly.
     13  kFileWriteOnly = 4,  ///< Open file for writing only.
     14                       ///< Cannot be used with kFileReadOnly.
     15  kFileNoSymlink = 8,  ///< Do not allow symbolic links.
     16  kFileCreateOnly = 16,  ///< Only create the file, failing if it already
     17                         ///< exists. Implies kFileWriteOnly. Cannot be used
     18                         ///< with kFileCreate.
     19  kFileTruncate = 32,  ///< Truncate the file if it exists.
     20                       ///< Implies kFileWriteOnly. Cannot be used with
     21                       ///< kFileCreateOnly.
     22  kFileAppend = 64,  ///< Append to the file. Implies kFileWriteOnly. Cannot
     23                     ///< be used with kFileCreateOnly.
     24  kFileNonBlocking = 128,  ///< Do not restart read() or write() syscall if
     25                           ///< EAGAIN was encountered.
     26  kFileMkDir = 256,
     27 } FileOpenFlags;
     28 
     29 enum {
     30  /// Read or write buffer size
     31  ///
     32  /// Currently equal to (IOSIZE - 1), but they do not need to be connected.
     33  kRWBufferSize = 1024,
     34 };
     35 
     36 static inline size_t file_space(FileDescriptor *fp)
     37 {
     38  return (size_t)((fp->buffer + ARENA_BLOCK_SIZE) - fp->write_pos);
     39 }
     40 
     41 #include "os/fileio.h.generated.h"