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src: use uint32_t for process initialization flags enum #46427

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Merged
nodejs-github-bot merged 2 commits into from
Feb 2, 2023
Merged

src: use uint32_t for process initialization flags enum #46427

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f3cffbd
src: use uint32_t for process initialization flags enum
addaleax Jan 30, 2023
c259b3b
fixup! src: use uint32_t for process initialization flags enum
addaleax Jan 31, 2023
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5 changes: 4 additions & 1 deletion src/node.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -432,6 +432,9 @@ void ResetSignalHandlers() {
}

static std::atomic<uint32_t> init_process_flags = 0;
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@joyeecheung joyeecheung Jan 31, 2023

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Maybe a comment here describing why we use a uint32_t?

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@addaleax addaleax Jan 31, 2023

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Yeah, makes sense – done in c259b3b!

static_assert(
std::is_same_v<std::underlying_type_t<ProcessInitializationFlags::Flags>,
uint32_t>);

static void PlatformInit(ProcessInitializationFlags::Flags flags) {
// init_process_flags is accessed in ResetStdio(),
Expand Down Expand Up @@ -1057,7 +1060,7 @@ std::unique_ptr<InitializationResult> InitializeOncePerProcess(
}

void TearDownOncePerProcess() {
const uint64_t flags = init_process_flags.load();
const uint32_t flags = init_process_flags.load();
ResetStdio();
if (!(flags & ProcessInitializationFlags::kNoDefaultSignalHandling)) {
ResetSignalHandlers();
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11 changes: 4 additions & 7 deletions src/node.h
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Expand Up @@ -227,10 +227,8 @@ class Environment;
class MultiIsolatePlatform;
class InitializationResultImpl;

namespace ProcessFlags {
// TODO(addaleax): Switch to uint32_t to match std::atomic<uint32_t>
// init_process_flags in node.cc
enum Flags : uint64_t {
namespace ProcessInitializationFlags {
enum Flags : uint32_t {
kNoFlags = 0,
// Enable stdio inheritance, which is disabled by default.
// This flag is also implied by kNoStdioInitialization.
Expand Down Expand Up @@ -270,9 +268,8 @@ enum Flags : uint64_t {
kNoParseGlobalDebugVariables | kNoAdjustResourceLimits |
kNoUseLargePages | kNoPrintHelpOrVersionOutput,
};
} // namespace ProcessFlags
// TODO(addaleax): Make this the canonical name, as it is more descriptive.
namespace ProcessInitializationFlags = ProcessFlags;
} // namespace ProcessInitializationFlags
namespace ProcessFlags = ProcessInitializationFlags; // Legacy alias.

class NODE_EXTERN InitializationResult {
public:
Expand Down