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Add bindings to 'v8::Isolate::LowMemoryNotification()' (#459)

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Moritz Gunz 2020-09-07 12:00:35 +01:00 committed by GitHub
parent de58267948
commit 8513c8fa69
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3 changed files with 17 additions and 0 deletions
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4
src/binding.cc
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@ -119,6 +119,10 @@ void v8__Isolate__Enter(v8::Isolate* isolate) { isolate->Enter(); }
void v8__Isolate__Exit(v8::Isolate* isolate) { isolate->Exit(); }
void v8__Isolate__LowMemoryNotification(v8::Isolate* isolate) {
isolate->LowMemoryNotification();
}
void v8__Isolate__GetHeapStatistics(v8::Isolate* isolate,
v8::HeapStatistics* s) {
isolate->GetHeapStatistics(s);

7
src/isolate.rs
View file

@ -105,6 +105,7 @@ extern "C" {
fn v8__Isolate__GetNumberOfDataSlots(this: *const Isolate) -> u32;
fn v8__Isolate__Enter(this: *mut Isolate);
fn v8__Isolate__Exit(this: *mut Isolate);
fn v8__Isolate__LowMemoryNotification(isolate: *mut Isolate);
fn v8__Isolate__GetHeapStatistics(this: *mut Isolate, s: *mut HeapStatistics);
fn v8__Isolate__SetCaptureStackTraceForUncaughtExceptions(
this: *mut Isolate,
@ -366,6 +367,12 @@ impl Isolate {
unsafe { v8__Isolate__Exit(self) }
}
/// Optional notification that the system is running low on memory.
/// V8 uses these notifications to attempt to free memory.
pub fn low_memory_notification(&mut self) {
unsafe { v8__Isolate__LowMemoryNotification(self) }
}
/// Get statistics about the heap memory usage.
pub fn get_heap_statistics(&mut self, s: &mut HeapStatistics) {
unsafe { v8__Isolate__GetHeapStatistics(self, s) }

6
tests/test_api.rs
View file

@ -3414,6 +3414,12 @@ fn heap_statistics() {
assert_ne!(s.number_of_native_contexts(), 0);
}
#[test]
fn low_memory_notification() {
let mut isolate = v8::Isolate::new(Default::default());
isolate.low_memory_notification();
}
fn synthetic_evaluation_steps<'a>(
context: v8::Local<'a, v8::Context>,
module: v8::Local<v8::Module>,