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Implement process and system memory statistics

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This commit is contained in:
Paul Betts 2016-05-13 17:50:58 -07:00
parent f4538daa0a
commit 191b054ff0
1 changed files with 39 additions and 3 deletions
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42
atom/common/api/atom_api_process_stats.cc
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@ -8,18 +8,54 @@
#include <vector>
#include "atom/common/node_includes.h"
#include "base/process/process_metrics.h"
#include "native_mate/dictionary.h"
namespace {
int32_t AddTwoNumbers(int32_t a, int32_t b) {
return a + b;
v8::Local<v8::Value> GetProcessMetrics(v8::Isolate* isolate) {
mate::Dictionary dict = mate::Dictionary::CreateEmpty(isolate);
std::unique_ptr<base::ProcessMetrics> metrics(
base::ProcessMetrics::CreateCurrentProcessMetrics());
dict.Set("workingSetSize", (double)metrics->GetWorkingSetSize());
dict.Set("peakWorkingSetSize", (double)metrics->GetPeakWorkingSetSize());
size_t private_bytes, shared_bytes;
if (metrics->GetMemoryBytes(&private_bytes, &shared_bytes)) {
dict.set("privateBytes", (double)private_bytes);
dict.set("sharedBytes", (double)shared_bytes);
}
return dict.GetHandle();
}
v8::Local<v8::Value> GetSystemMemoryInfo(v8::Isolate* isolate, mate::Arguments* args) {
mate::Dictionary dict = mate::Dictionary::CreateEmpty(isolate);
base::SystemMemoryInfoKB memInfo;
if (!base::GetSystemMemoryInfo(&memInfo)) {
args->ThrowError("Unable to retrieve system memory information");
return v8::Undefined(isolate);
}
dict.set("total", memInfo.total);
dict.set("free", memInfo.free);
// NB: These return bogus values on OS X
#if !DEFINED(OS_MACOSX)
dict.set("swapTotal", memInfo.swap_total);
dict.set("swapFree", memInfo.swap_free);
#endif
return dict.GetHandle();
}
void Initialize(v8::Local<v8::Object> exports, v8::Local<v8::Value> unused,
v8::Local<v8::Context> context, void* priv) {
mate::Dictionary dict(context->GetIsolate(), exports);
dict.SetMethod("addTwoNumbers", &AddTwoNumbers);
dict.SetMethod("getProcessMetrics", &GetProcessMetrics);
dict.SetMethod("getSystemMemoryInfo", &GetSystemMemoryInfo);
}
} // namespace