opnsense-src/sys/contrib/openzfs/module/lua/lzio.h
Martin Matuska c03c5b1c80 zfs: merge openzfs/zfs@a86e08941 (master) into main
Notable upstream pull request merges:
  #9078:  log xattr=sa create/remove/update to ZIL
  #11919: Cross-platform xattr user namespace compatibility
  #13014: Report dnodes with faulty bonuslen
  #13016: FreeBSD: Fix zvol_cdev_open locking
  #13019: spl: Don't check FreeBSD rwlocks for double initialization
  #13027: Fix clearing set-uid and set-gid bits on a file when
          replying a write
  #13031: Add enumerated vdev names to 'zpool iostat -v' and
          'zpool list -v'
  #13074: Enable encrypted raw sending to pools with greater ashift
  #13076: Receive checks should allow unencrypted child datasets
  #13098: Avoid dirtying the final TXGs when exporting a pool
  #13172: Fix ENOSPC when unlinking multiple files from full pool

Obtained from:	OpenZFS
OpenZFS commit:	a86e089415
2022-03-08 18:53:02 +01:00

65 lines
1.5 KiB
C

/*
** $Id: lzio.h,v 1.26.1.1 2013/04/12 18:48:47 roberto Exp $
** Buffered streams
** See Copyright Notice in lua.h
*/
#ifndef lzio_h
#define lzio_h
#include <sys/lua/lua.h>
#include "lmem.h"
#define EOZ (-1) /* end of stream */
typedef struct Zio ZIO;
#define zgetc(z) (((z)->n--)>0 ? cast_uchar(*(z)->p++) : luaZ_fill(z))
typedef struct Mbuffer {
char *buffer;
size_t n;
size_t buffsize;
} Mbuffer;
#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0)
#define luaZ_buffer(buff) ((buff)->buffer)
#define luaZ_sizebuffer(buff) ((buff)->buffsize)
#define luaZ_bufflen(buff) ((buff)->n)
#define luaZ_resetbuffer(buff) ((buff)->n = 0)
#define luaZ_resizebuffer(L, buff, size) \
(luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \
(buff)->buffsize = size)
#define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0)
LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n);
LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader,
void *data);
LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */
/* --------- Private Part ------------------ */
struct Zio {
size_t n; /* bytes still unread */
const char *p; /* current position in buffer */
lua_Reader reader; /* reader function */
void* data; /* additional data */
lua_State *L; /* Lua state (for reader) */
};
LUAI_FUNC int luaZ_fill (ZIO *z);
#endif