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Implement WASI C API.

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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.
This commit is contained in:
Peter Huene
2020-02-07 11:24:26 -08:00
parent f8abe1169c
commit ae0b4090ce
28 changed files with 1303 additions and 268 deletions
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8
crates/misc/dotnet/src/Imports/Import.cs
View File

@@ -12,10 +12,12 @@ namespace Wasmtime.Imports
{
unsafe
{
var moduleName = Interop.wasm_importtype_module(importType);
Handle = importType;
var moduleName = Interop.wasm_importtype_module(Handle);
ModuleName = Marshal.PtrToStringUTF8((IntPtr)moduleName->data, (int)moduleName->size);
var name = Interop.wasm_importtype_name(importType);
var name = Interop.wasm_importtype_name(Handle);
Name = Marshal.PtrToStringUTF8((IntPtr)name->data, (int)name->size);
}
}
@@ -30,6 +32,8 @@ namespace Wasmtime.Imports
/// </summary>
public string Name { get; private set; }
internal IntPtr Handle { get; private set; }
/// <inheritdoc/>
public override string ToString()
{

97
crates/misc/dotnet/src/Imports/Imports.cs
View File

@@ -6,69 +6,72 @@ namespace Wasmtime.Imports
/// <summary>
/// Represents imported functions, globals, tables, and memories to a WebAssembly module.
/// </summary>
public class Imports
public class Imports : IDisposable
{
internal Imports(Module module)
{
Interop.wasm_importtype_vec_t imports;
Interop.wasm_module_imports(module.Handle, out imports);
try
var all = new List<Import>((int)imports.size);
var functions = new List<FunctionImport>();
var globals = new List<GlobalImport>();
var tables = new List<TableImport>();
var memories = new List<MemoryImport>();
for (int i = 0; i < (int)imports.size; ++i)
{
var all = new List<Import>((int)imports.size);
var functions = new List<FunctionImport>();
var globals = new List<GlobalImport>();
var tables = new List<TableImport>();
var memories = new List<MemoryImport>();
for (int i = 0; i < (int)imports.size; ++i)
unsafe
{
unsafe
var importType = imports.data[i];
var externType = Interop.wasm_importtype_type(importType);
switch (Interop.wasm_externtype_kind(externType))
{
var importType = imports.data[i];
var externType = Interop.wasm_importtype_type(importType);
case Interop.wasm_externkind_t.WASM_EXTERN_FUNC:
var function = new FunctionImport(importType, externType);
functions.Add(function);
all.Add(function);
break;
switch (Interop.wasm_externtype_kind(externType))
{
case Interop.wasm_externkind_t.WASM_EXTERN_FUNC:
var function = new FunctionImport(importType, externType);
functions.Add(function);
all.Add(function);
break;
case Interop.wasm_externkind_t.WASM_EXTERN_GLOBAL:
var global = new GlobalImport(importType, externType);
globals.Add(global);
all.Add(global);
break;
case Interop.wasm_externkind_t.WASM_EXTERN_GLOBAL:
var global = new GlobalImport(importType, externType);
globals.Add(global);
all.Add(global);
break;
case Interop.wasm_externkind_t.WASM_EXTERN_TABLE:
var table = new TableImport(importType, externType);
tables.Add(table);
all.Add(table);
break;
case Interop.wasm_externkind_t.WASM_EXTERN_TABLE:
var table = new TableImport(importType, externType);
tables.Add(table);
all.Add(table);
break;
case Interop.wasm_externkind_t.WASM_EXTERN_MEMORY:
var memory = new MemoryImport(importType, externType);
memories.Add(memory);
all.Add(memory);
break;
case Interop.wasm_externkind_t.WASM_EXTERN_MEMORY:
var memory = new MemoryImport(importType, externType);
memories.Add(memory);
all.Add(memory);
break;
default:
throw new NotSupportedException("Unsupported import extern type.");
}
default:
throw new NotSupportedException("Unsupported import extern type.");
}
}
Functions = functions;
Globals = globals;
Tables = tables;
Memories = memories;
All = all;
}
finally
Functions = functions;
Globals = globals;
Tables = tables;
Memories = memories;
All = all;
}
/// <inheritdoc/>
public unsafe void Dispose()
{
if (!(_imports.data is null))
{
Interop.wasm_importtype_vec_delete(ref imports);
Interop.wasm_importtype_vec_delete(ref _imports);
_imports.data = null;
}
}
@@ -93,5 +96,7 @@ namespace Wasmtime.Imports
public IReadOnlyList<MemoryImport> Memories { get; private set; }
internal IReadOnlyList<Import> All { get; private set; }
private Interop.wasm_importtype_vec_t _imports;
}
}