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History

Casper Beyer f4b03a8887 BREAKING(std/wasi): return exit code from start (#9022 ) This returns the exit code directly from the start entry point instead of throwing it and letting the user handle it. As a result the exit status is an implementation detail and has been made internal.		2021-01-06 05:29:55 -05:00
..
testdata@afe1b368d2	test(std/wasi): add a case for open directory/../.. (#8708 )	2020-12-10 13:31:15 +01:00
README.md	feat(std/wasi): add start method to Context (#8141 )	2020-11-02 18:50:45 +01:00
snapshot_preview1.ts	BREAKING(std/wasi): return exit code from start (#9022 )	2021-01-06 05:29:55 -05:00
snapshot_preview1_test.ts	BREAKING(std/wasi): return exit code from start (#9022 )	2021-01-06 05:29:55 -05:00
snapshot_preview1_test_runner.ts	feat(std/wasi): add start method to Context (#8141 )	2020-11-02 18:50:45 +01:00

README.md

wasi

This module provides an implementation of the WebAssembly System Interface.

Supported Syscalls

wasi_snapshot_preview1

args_get
args_sizes_get
environ_get
environ_sizes_get
clock_res_get
clock_time_get
fd_advise
fd_allocate
fd_close
fd_datasync
fd_fdstat_get
fd_fdstat_set_flags
fd_fdstat_set_rights
fd_filestat_get
fd_filestat_set_size
fd_filestat_set_times
fd_pread
fd_prestat_get
fd_prestat_dir_name
fd_pwrite
fd_read
fd_readdir
fd_renumber
fd_seek
fd_sync
fd_tell
fd_write
path_create_directory
path_filestat_get
path_filestat_set_times
path_link
path_open
path_readlink
path_remove_directory
path_rename
path_symlink
path_unlink_file
poll_oneoff
proc_exit
proc_raise
sched_yield
random_get
sock_recv
sock_send
sock_shutdown

Usage

import Context from "https://deno.land/std@$STD_VERSION/wasi/snapshot_preview1.ts";

const context = new Context({
  args: Deno.args,
  env: Deno.env.toObject(),
});

const binary = await Deno.readFile("path/to/your/module.wasm");
const module = await WebAssembly.compile(binary);
const instance = await WebAssembly.instantiate(module, {
  "wasi_snapshot_preview1": context.exports,
});

context.start(instance);