wasi: introduce initial WASI support

Co-authored-by: Gus Caplan <me@gus.host>
Co-authored-by: Daniel Bevenius <daniel.bevenius@gmail.com>
Co-authored-by: Jiawen Geng <technicalcute@gmail.com>
Co-authored-by: Tobias Nießen <tniessen@tnie.de>
Co-authored-by: Chengzhong Wu <legendecas@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/30258
Refs: https://github.com/nodejs/node/pull/27850
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Wyatt Preul <wpreul@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/src/node_wasi.h b/src/node_wasi.h
new file mode 100644
index 0000000000..ca726e48a4
--- /dev/null
+++ b/src/node_wasi.h
@@ -0,0 +1,103 @@
+#ifndef SRC_NODE_WASI_H_
+#define SRC_NODE_WASI_H_
+
+#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
+
+#include "base_object.h"
+#include "memory_tracker-inl.h"
+#include "uvwasi.h"
+
+namespace node {
+namespace wasi {
+
+
+class WASI : public BaseObject {
+ public:
+  WASI(Environment* env,
+       v8::Local<v8::Object> object,
+       uvwasi_options_t* options);
+  static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
+  void MemoryInfo(MemoryTracker* tracker) const override {
+    /* TODO(cjihrig): Get memory consumption from uvwasi. */
+    tracker->TrackField("memory", memory_);
+  }
+
+  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 void _SetMemory(const v8::FunctionCallbackInfo<v8::Value>& args);
+
+ 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::Object> memory_;
+};
+
+
+}  // namespace wasi
+}  // namespace node
+
+#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
+
+#endif  // SRC_NODE_WASI_H_