nodejs
diff --git a/‎doc/api/process.md‎
Lines changed: 3 additions & 0 deletions b/‎doc/api/process.md‎
Lines changed: 3 additions & 0 deletions
diff --git a/‎src/env.h‎
Lines changed: 16 additions & 3 deletions b/‎src/env.h‎
Lines changed: 16 additions & 3 deletions
diff --git a/‎src/node_snapshot_builder.h‎
Lines changed: 6 additions & 5 deletions b/‎src/node_snapshot_builder.h‎
Lines changed: 6 additions & 5 deletions
@@ -3820,6 +3820,9 @@ cases:
   options were set, but the port number chosen was invalid or unavailable.
 * `13` **Unfinished Top-Level Await**: `await` was used outside of a function
   in the top-level code, but the passed `Promise` never resolved.
+* `14` **Snapshot Failure**: Node.js was started to build a V8 startup
+  snapshot and it failed because certain requirements of the state of
+  the application were not met.
 * `>128` **Signal Exits**: If Node.js receives a fatal signal such as
   `SIGKILL` or `SIGHUP`, then its exit code will be `128` plus the
   value of the signal code. This is a standard POSIX practice, since
 
@@ -963,13 +963,17 @@ struct EnvSerializeInfo {
 };
 
 struct SnapshotData {
-  // The result of v8::SnapshotCreator::CreateBlob() during the snapshot
-  // building process.
-  v8::StartupData v8_snapshot_blob_data;
+  enum class DataOwnership { kOwned, kNotOwned };
 
   static const size_t kNodeBaseContextIndex = 0;
   static const size_t kNodeMainContextIndex = kNodeBaseContextIndex + 1;
 
+  DataOwnership data_ownership = DataOwnership::kOwned;
+
+  // The result of v8::SnapshotCreator::CreateBlob() during the snapshot
+  // building process.
+  v8::StartupData v8_snapshot_blob_data{nullptr, 0};
+
   std::vector<size_t> isolate_data_indices;
   // TODO(joyeecheung): there should be a vector of env_info once we snapshot
   // the worker environments.
@@ -979,6 +983,15 @@ struct SnapshotData {
   // read only space. We use native_module::CodeCacheInfo because
   // v8::ScriptCompiler::CachedData is not copyable.
   std::vector<native_module::CodeCacheInfo> code_cache;
+
+  ~SnapshotData();
+
+  SnapshotData(const SnapshotData&) = delete;
+  SnapshotData& operator=(const SnapshotData&) = delete;
+  SnapshotData(SnapshotData&&) = delete;
+  SnapshotData& operator=(SnapshotData&&) = delete;
+
+  SnapshotData() = default;
 };
 
 class Environment : public MemoryRetainer {
 
@@ -15,13 +15,14 @@ struct SnapshotData;
 
 class NODE_EXTERN_PRIVATE SnapshotBuilder {
  public:
-  static std::string Generate(const std::vector<std::string> args,
-                              const std::vector<std::string> exec_args);
+  static int Generate(std::ostream& out,
+                      const std::vector<std::string> args,
+                      const std::vector<std::string> exec_args);
 
   // Generate the snapshot into out.
-  static void Generate(SnapshotData* out,
-                       const std::vector<std::string> args,
-                       const std::vector<std::string> exec_args);
+  static int Generate(SnapshotData* out,
+                      const std::vector<std::string> args,
+                      const std::vector<std::string> exec_args);
 
   // If nullptr is returned, the binary is not built with embedded
   // snapshot.