ae0b4090ce
This commit implements an initial WASI C API that can be used to instantiate and configure a WASI instance from C. This also implements a `WasiBuilder` for the C# API enabling .NET hosts to bind to Wasmtime's WASI implementation.
45 lines
1.1 KiB
C#
45 lines
1.1 KiB
C#
using System;
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using Wasmtime.Bindings;
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using Wasmtime.Imports;
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namespace Wasmtime
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{
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public class Wasi
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{
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/// <summary>
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/// Creates a default <see cref="Wasi"/> instance.
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/// </summary>
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public Wasi(Store store) :
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this(
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(store ?? throw new ArgumentNullException(nameof(store))).Handle,
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Interop.wasi_config_new()
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)
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{
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}
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internal Wasi(Interop.StoreHandle store, Interop.WasiConfigHandle config)
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{
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IntPtr trap;
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Handle = Interop.wasi_instance_new(store, config, out trap);
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config.SetHandleAsInvalid();
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if (trap != IntPtr.Zero)
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{
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throw TrapException.FromOwnedTrap(trap);
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}
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}
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internal WasiBinding Bind(Import import)
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{
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var export = Interop.wasi_instance_bind_import(Handle, import.Handle);
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if (export == IntPtr.Zero)
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{
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return null;
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}
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return new WasiBinding(export);
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}
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internal Interop.WasiInstanceHandle Handle { get; private set; }
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}
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}
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