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GeezerVison is showing github.com — bootstrap: handle snapshot errors gracefully · nodejs/node@0aa255a

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doc/api
- process.md
src
test/fixtures/snapshot
- error.js
tools/snapshot
- node_mksnapshot.cc

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`‎doc/api/process.md‎`

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+3Lines changed: 3 additions & 0 deletions

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Original file line number	Diff line number	Diff line change
`@@ -3820,6 +3820,9 @@ cases:`
`3820`	`3820`	`options were set, but the port number chosen was invalid or unavailable.`
`3821`	`3821`	* `13` Unfinished Top-Level Await: `await` was used outside of a function
`3822`	`3822`	in the top-level code, but the passed `Promise` never resolved.
	`3823`	+* `14` Snapshot Failure: Node.js was started to build a V8 startup
	`3824`	`+ snapshot and it failed because certain requirements of the state of`
	`3825`	`+ the application were not met.`
`3823`	`3826`	* `>128` Signal Exits: If Node.js receives a fatal signal such as
`3824`	`3827`	`SIGKILL` or `SIGHUP`, then its exit code will be `128` plus the
`3825`	`3828`	`value of the signal code. This is a standard POSIX practice, since`

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`‎src/env.h‎`

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+16-3Lines changed: 16 additions & 3 deletions

Original file line number	Diff line number	Diff line change
`@@ -963,13 +963,17 @@ struct EnvSerializeInfo {`
`963`	`963`	`};`
`964`	`964`
`965`	`965`	`struct SnapshotData {`
`966`		`- // The result of v8::SnapshotCreator::CreateBlob() during the snapshot`
`967`		`- // building process.`
`968`		`- v8::StartupData v8_snapshot_blob_data;`
	`966`	`+ enum class DataOwnership { kOwned, kNotOwned };`
`969`	`967`
`970`	`968`	`static const size_t kNodeBaseContextIndex = 0;`
`971`	`969`	`static const size_t kNodeMainContextIndex = kNodeBaseContextIndex + 1;`
`972`	`970`
	`971`	`+ DataOwnership data_ownership = DataOwnership::kOwned;`
	`972`	`+`
	`973`	`+ // The result of v8::SnapshotCreator::CreateBlob() during the snapshot`
	`974`	`+ // building process.`
	`975`	`+ v8::StartupData v8_snapshot_blob_data{nullptr, 0};`
	`976`	`+`
`973`	`977`	`std::vector<size_t> isolate_data_indices;`
`974`	`978`	`// TODO(joyeecheung): there should be a vector of env_info once we snapshot`
`975`	`979`	`// the worker environments.`
`@@ -979,6 +983,15 @@ struct SnapshotData {`
`979`	`983`	`// read only space. We use native_module::CodeCacheInfo because`
`980`	`984`	`// v8::ScriptCompiler::CachedData is not copyable.`
`981`	`985`	`std::vector<native_module::CodeCacheInfo> code_cache;`
	`986`	`+`
	`987`	`+ ~SnapshotData();`
	`988`	`+`
	`989`	`+ SnapshotData(const SnapshotData&) = delete;`
	`990`	`+ SnapshotData& operator=(const SnapshotData&) = delete;`
	`991`	`+ SnapshotData(SnapshotData&&) = delete;`
	`992`	`+ SnapshotData& operator=(SnapshotData&&) = delete;`
	`993`	`+`
	`994`	`+ SnapshotData() = default;`
`982`	`995`	`};`
`983`	`996`
`984`	`997`	`class Environment : public MemoryRetainer {`

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`‎src/node_snapshot_builder.h‎`

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+6-5Lines changed: 6 additions & 5 deletions

Original file line number	Diff line number	Diff line change
`@@ -15,13 +15,14 @@ struct SnapshotData;`
`15`	`15`
`16`	`16`	`class NODE_EXTERN_PRIVATE SnapshotBuilder {`
`17`	`17`	`public:`
`18`		`- static std::string Generate(const std::vector<std::string> args,`
`19`		`- const std::vector<std::string> exec_args);`
	`18`	`+ static int Generate(std::ostream& out,`
	`19`	`+ const std::vector<std::string> args,`
	`20`	`+ const std::vector<std::string> exec_args);`
`20`	`21`
`21`	`22`	`// Generate the snapshot into out.`
`22`		`- static void Generate(SnapshotData* out,`
`23`		`- const std::vector<std::string> args,`
`24`		`- const std::vector<std::string> exec_args);`
	`23`	`+ static int Generate(SnapshotData* out,`
	`24`	`+ const std::vector<std::string> args,`
	`25`	`+ const std::vector<std::string> exec_args);`
`25`	`26`
`26`	`27`	`// If nullptr is returned, the binary is not built with embedded`
`27`	`28`	`// snapshot.`

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