Cloudflare Developers•3mo ago

Import #30 "wasi_snapshot_preview1" "sock_accept": function import requires a callable

Hi. I'm having trouble executing PHP WASI under Cloudflare worker and can't understand what is actually wrong. It is always fails with the Import #30 "wasi_snapshot_preview1" "sock_accept": function import requires a callable. Is it some missing support for a standard on Cloudflare end or it needs to be compiled in special way? I would be grateful for any hints on the matter. What I'm trying to achieve is to run php-cgi WASI build from https://github.com/vmware-labs/webassembly-language-runtimes/tree/main/php/v8.2.6 When I try to run wasmtime with the same binary it works without any issues wasmtime php-cgi-8.2.6.wasm -i worker.js

import { WASI } from '@cloudflare/workers-wasi';
import PHPCGI from './php-cgi-8.2.6.wasm';

export default {
    async fetch(request, _env, ctx) {
        const stdout = new TransformStream();
        const wasi = new WASI({
            args: ['-i'],
            stdout: stdout.writable,
        });

        const instance = new WebAssembly.Instance(PHPCGI, {
            wasi_snapshot_preview1: wasi.wasiImport,
        });

        ctx.waitUntil(wasi.start(instance));

        return new Response(stdout.readable, {
            headers: { 'content-type': 'text/html' },
        });
    },
};

import { WASI } from '@cloudflare/workers-wasi';
import PHPCGI from './php-cgi-8.2.6.wasm';

export default {
    async fetch(request, _env, ctx) {
        const stdout = new TransformStream();
        const wasi = new WASI({
            args: ['-i'],
            stdout: stdout.writable,
        });

        const instance = new WebAssembly.Instance(PHPCGI, {
            wasi_snapshot_preview1: wasi.wasiImport,
        });

        ctx.waitUntil(wasi.start(instance));

        return new Response(stdout.readable, {
            headers: { 'content-type': 'text/html' },
        });
    },
};

wrangler.toml

#:schema node_modules/wrangler/config-schema.json
name = "round-morning-127d"
main = "worker.js"
compatibility_date = "2024-06-10"

preserve_file_names = true

#:schema node_modules/wrangler/config-schema.json
name = "round-morning-127d"
main = "worker.js"
compatibility_date = "2024-06-10"

preserve_file_names = true

GitHub

webassembly-language-runtimes/php/v8.2.6 at main · vmware-labs/weba...

Wasm Language Runtimes provides popular language runtimes (Ruby, Python, …) precompiled to WebAssembly that are tested for compatibility and kept up to date when new versions of upstream languages ...

1 Reply

kian•3mo ago

sock_accept isn't listed but sock_recv, sock_send and sock_shutdown are all not implemented in workers-wasi That project hasn't had any updates in ~2 years

Gaming

Programming

Import #30 "wasi_snapshot_preview1" "sock_accept": function import requires a callable