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Code Releases Activity

send LowMemoryNotification before imposing memory limit, fixes #217

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This commit is contained in:
Stefan Siegl 2016-03-26 00:53:52 +01:00
parent 4faab8842c
commit b2eb89e49e
2 changed files with 38 additions and 18 deletions
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15
v8js_timer.cc
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@ -40,6 +40,14 @@ static void v8js_timer_interrupt_handler(v8::Isolate *isolate, void *data) { /*
v8::Locker locker(isolate); v8::Locker locker(isolate);
v8::HeapStatistics hs; v8::HeapStatistics hs;
bool send_notification, has_sent_notification;
do {
if (send_notification) {
isolate->LowMemoryNotification();
has_sent_notification = true;
}
isolate->GetHeapStatistics(&hs); isolate->GetHeapStatistics(&hs);
V8JSG(timer_mutex).lock(); V8JSG(timer_mutex).lock();
@ -54,13 +62,20 @@ static void v8js_timer_interrupt_handler(v8::Isolate *isolate, void *data) { /*
} }
if (timer_ctx->memory_limit > 0 && hs.used_heap_size() > timer_ctx->memory_limit) { if (timer_ctx->memory_limit > 0 && hs.used_heap_size() > timer_ctx->memory_limit) {
if (has_sent_notification) {
timer_ctx->killed = true; timer_ctx->killed = true;
v8::V8::TerminateExecution(c->isolate); v8::V8::TerminateExecution(c->isolate);
c->memory_limit_hit = true; c->memory_limit_hit = true;
} else {
// force garbage collection, then check again
send_notification = true;
break;
}
} }
} }
V8JSG(timer_mutex).unlock(); V8JSG(timer_mutex).unlock();
} while(send_notification != has_sent_notification);
} }
/* }}} */ /* }}} */

5
v8js_v8.cc
View File

@ -209,10 +209,15 @@ void v8js_v8_call(v8js_ctx *c, zval **return_value,
v8::HeapStatistics hs; v8::HeapStatistics hs;
isolate->GetHeapStatistics(&hs); isolate->GetHeapStatistics(&hs);
if (hs.used_heap_size() > memory_limit) {
isolate->LowMemoryNotification();
isolate->GetHeapStatistics(&hs);
if (hs.used_heap_size() > memory_limit) { if (hs.used_heap_size() > memory_limit) {
c->memory_limit_hit = true; c->memory_limit_hit = true;
} }
} }
}
if (c->memory_limit_hit) { if (c->memory_limit_hit) {
// Execution has been terminated due to memory limit // Execution has been terminated due to memory limit