wasi: fast calls

PR-URL: https://github.com/nodejs/node/pull/43697
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

src/node_wasi.h

@@ -6,10 +6,15 @@
 #include "base_object.h"
 #include "node_mem.h"
 #include "uvwasi.h"
+#include "v8-fast-api-calls.h"
 
 namespace node {
 namespace wasi {
 
+struct WasmMemory {
+  char* data;
+  size_t size;
+};
 
 class WASI : public BaseObject,
              public mem::NgLibMemoryManager<WASI, uvwasi_mem_t> {
@@ -23,57 +28,120 @@ class WASI : public BaseObject,
   SET_MEMORY_INFO_NAME(WASI)
   SET_SELF_SIZE(WASI)
 
-  static void ArgsGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void ArgsSizesGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void ClockResGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void ClockTimeGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void EnvironGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void EnvironSizesGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdAdvise(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdAllocate(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdClose(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdDatasync(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdFdstatGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdFdstatSetFlags(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdFdstatSetRights(
-    const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdFilestatGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdFilestatSetSize(
-    const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdFilestatSetTimes(
-    const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdPread(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdPrestatGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdPrestatDirName(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdPwrite(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdRead(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdReaddir(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdRenumber(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdSeek(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdSync(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdTell(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void FdWrite(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathCreateDirectory(
-    const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathFilestatGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathFilestatSetTimes(
-    const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathLink(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathOpen(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathReadlink(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathRemoveDirectory(
-    const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathRename(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathSymlink(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PathUnlinkFile(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void PollOneoff(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void ProcExit(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void ProcRaise(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void RandomGet(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void SchedYield(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void SockRecv(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void SockSend(const v8::FunctionCallbackInfo<v8::Value>& args);
-  static void SockShutdown(const v8::FunctionCallbackInfo<v8::Value>& args);
+  static uint32_t ArgsGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t ArgsSizesGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t ClockResGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t ClockTimeGet(WASI&, WasmMemory, uint32_t, uint64_t, uint32_t);
+  static uint32_t EnvironGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t EnvironSizesGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t FdAdvise(
+      WASI&, WasmMemory, uint32_t, uint64_t, uint64_t, uint32_t);
+  static uint32_t FdAllocate(WASI&, WasmMemory, uint32_t, uint64_t, uint64_t);
+  static uint32_t FdClose(WASI&, WasmMemory, uint32_t);
+  static uint32_t FdDatasync(WASI&, WasmMemory, uint32_t);
+  static uint32_t FdFdstatGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t FdFdstatSetFlags(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t FdFdstatSetRights(
+      WASI&, WasmMemory, uint32_t, uint64_t, uint64_t);
+  static uint32_t FdFilestatGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t FdFilestatSetSize(WASI&, WasmMemory, uint32_t, uint64_t);
+  static uint32_t FdFilestatSetTimes(
+      WASI&, WasmMemory, uint32_t, uint64_t, uint64_t, uint32_t);
+  static uint32_t FdPread(WASI&,
+                          WasmMemory memory,
+                          uint32_t,
+                          uint32_t,
+                          uint32_t,
+                          uint64_t,
+                          uint32_t);
+  static uint32_t FdPrestatGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t FdPrestatDirName(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t);
+  static uint32_t FdPwrite(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t, uint64_t, uint32_t);
+  static uint32_t FdRead(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t, uint32_t);
+  static uint32_t FdReaddir(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t, uint64_t, uint32_t);
+  static uint32_t FdRenumber(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t FdSeek(
+      WASI&, WasmMemory, uint32_t, int64_t, uint32_t, uint32_t);
+  static uint32_t FdSync(WASI&, WasmMemory, uint32_t);
+  static uint32_t FdTell(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t FdWrite(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t, uint32_t);
+  static uint32_t PathCreateDirectory(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t);
+  static uint32_t PathFilestatGet(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
+  static uint32_t PathFilestatSetTimes(WASI&,
+                                       WasmMemory,
+                                       uint32_t,
+                                       uint32_t,
+                                       uint32_t,
+                                       uint32_t,
+                                       uint64_t,
+                                       uint64_t,
+                                       uint32_t);
+  static uint32_t PathLink(WASI&,
+                           WasmMemory,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t);
+  static uint32_t PathOpen(WASI&,
+                           WasmMemory,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint64_t,
+                           uint64_t,
+                           uint32_t,
+                           uint32_t);
+  static uint32_t PathReadlink(WASI&,
+                               WasmMemory,
+                               uint32_t,
+                               uint32_t,
+                               uint32_t,
+                               uint32_t,
+                               uint32_t,
+                               uint32_t);
+  static uint32_t PathRemoveDirectory(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t);
+  static uint32_t PathRename(WASI&,
+                             WasmMemory,
+                             uint32_t,
+                             uint32_t,
+                             uint32_t,
+                             uint32_t,
+                             uint32_t,
+                             uint32_t);
+  static uint32_t PathSymlink(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
+  static uint32_t PathUnlinkFile(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t);
+  static uint32_t PollOneoff(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t, uint32_t);
+  static void ProcExit(WASI&, WasmMemory, uint32_t);
+  static uint32_t ProcRaise(WASI&, WasmMemory, uint32_t);
+  static uint32_t RandomGet(WASI&, WasmMemory, uint32_t, uint32_t);
+  static uint32_t SchedYield(WASI&, WasmMemory);
+  static uint32_t SockRecv(WASI&,
+                           WasmMemory,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t,
+                           uint32_t);
+  static uint32_t SockSend(
+      WASI&, WasmMemory, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
+  static uint32_t SockShutdown(WASI&, WasmMemory, uint32_t, uint32_t);
 
   static void _SetMemory(const v8::FunctionCallbackInfo<v8::Value>& args);
 
@@ -82,17 +150,24 @@ class WASI : public BaseObject,
   void IncreaseAllocatedSize(size_t size);
   void DecreaseAllocatedSize(size_t size);
 
+  // <typename FT, FT F> as a C++14 desugaring of `<auto F>`
+  template <typename FT, FT F, typename R, typename... Args>
+  class WasiFunction {
+   public:
+    static void SetFunction(Environment*,
+                            const char*,
+                            v8::Local<v8::FunctionTemplate>);
+
+   private:
+    static R FastCallback(v8::Local<v8::Object> receiver,
+                          Args...,
+                          v8::FastApiCallbackOptions&);
+
+    static void SlowCallback(const v8::FunctionCallbackInfo<v8::Value>&);
+  };
+
  private:
   ~WASI() override;
-  inline void readUInt8(char* memory, uint8_t* value, uint32_t offset);
-  inline void readUInt16(char* memory, uint16_t* value, uint32_t offset);
-  inline void readUInt32(char* memory, uint32_t* value, uint32_t offset);
-  inline void readUInt64(char* memory, uint64_t* value, uint32_t offset);
-  inline void writeUInt8(char* memory, uint8_t value, uint32_t offset);
-  inline void writeUInt16(char* memory, uint16_t value, uint32_t offset);
-  inline void writeUInt32(char* memory, uint32_t value, uint32_t offset);
-  inline void writeUInt64(char* memory, uint64_t value, uint32_t offset);
-  uvwasi_errno_t backingStore(char** store, size_t* byte_length);
   uvwasi_t uvw_;
   v8::Global<v8::WasmMemoryObject> memory_;
   uvwasi_mem_t alloc_info_;

test/wasi/Makefile

@@ -1,12 +1,13 @@
 CC = /opt/wasi-sdk/bin/clang
-TARGET = wasm32-unknown-wasi
+TARGET = wasm32-wasi
 SYSROOT =
+CFLAGS = -D_WASI_EMULATED_PROCESS_CLOCKS -lwasi-emulated-process-clocks
 
 OBJ = $(patsubst c/%.c, wasm/%.wasm, $(wildcard c/*.c))
 all: $(OBJ)
 
 wasm/%.wasm : c/%.c
-	$(CC) $< --target=$(TARGET) --sysroot=$(SYSROOT) -s -o $@
+	$(CC) $< $(CFLAGS) --target=$(TARGET) --sysroot=$(SYSROOT) -s -o $@
 
 .PHONY clean:
 	rm -f $(OBJ)

test/wasi/test-wasi.js

@@ -35,7 +35,7 @@ if (process.argv[2] === 'wasi-child') {
   const cp = require('child_process');
   const { checkoutEOL } = common;
 
-  function runWASI(options) {
+  function innerRunWASI(options, args) {
     console.log('executing', options.test);
     const opts = {
       env: {
@@ -49,6 +49,7 @@ if (process.argv[2] === 'wasi-child') {
       opts.input = options.stdin;
 
     const child = cp.spawnSync(process.execPath, [
+      ...args,
       '--experimental-wasi-unstable-preview1',
       __filename,
       'wasi-child',
@@ -60,6 +61,11 @@ if (process.argv[2] === 'wasi-child') {
     assert.strictEqual(child.stdout.toString(), options.stdout || '');
   }
 
+  function runWASI(options) {
+    innerRunWASI(options, ['--no-turbo-fast-api-calls']);
+    innerRunWASI(options, ['--turbo-fast-api-calls']);
+  }
+
   runWASI({ test: 'cant_dotdot' });
 
   // Tests that are currently unsupported on IBM i PASE.