ext/wasm/api/sqlite3-wasi.h

   1 /**
   2    Dummy function stubs to get sqlite3.c compiling with
   3    wasi-sdk. This requires, in addition:
   4
   5    -D_WASI_EMULATED_MMAN -D_WASI_EMULATED_GETPID
   6
   7    -lwasi-emulated-getpid
   8 */
   9 typedef unsigned mode_t;
  10 int fchmod(int fd, mode_t mode);
  11 int fchmod(int fd, mode_t mode){
  12   return (fd && mode) ? 0 : 0;
  13 }
  14 typedef unsigned uid_t;
  15 typedef uid_t gid_t;
  16 int fchown(int fd, uid_t owner, gid_t group);
  17 int fchown(int fd, uid_t owner, gid_t group){
  18   return (fd && owner && group) ? 0 : 0;
  19 }
  20 uid_t geteuid(void);
  21 uid_t geteuid(void){return 0;}
  22 #if !defined(F_WRLCK)
  23 enum {
  24 F_WRLCK,
  25 F_RDLCK,
  26 F_GETLK,
  27 F_SETLK,
  28 F_UNLCK
  29 };
  30 #endif
  31
  32 #undef HAVE_PREAD
  33
  34 #include <wasi/api.h>
  35 #define WASM__KEEP __attribute__((used))
  36
  37 #if 0
  38 /**
  39    wasi-sdk cannot build sqlite3's default VFS without at least the following
  40    functions. They are apparently syscalls which clients have to implement or
  41    otherwise obtain.
  42
  43    https://github.com/WebAssembly/WASI/blob/main/phases/snapshot/docs.md
  44 */
  45 environ_get
  46 environ_sizes_get
  47 clock_time_get
  48 fd_close
  49 fd_fdstat_get
  50 fd_fdstat_set_flags
  51 fd_filestat_get
  52 fd_filestat_set_size
  53 fd_pread
  54 fd_prestat_get
  55 fd_prestat_dir_name
  56 fd_read
  57 fd_seek
  58 fd_sync
  59 fd_write
  60 path_create_directory
  61 path_filestat_get
  62 path_filestat_set_times
  63 path_open
  64 path_readlink
  65 path_remove_directory
  66 path_unlink_file
  67 poll_oneoff
  68 proc_exit
  69 #endif