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124 lines
3.2 KiB
124 lines
3.2 KiB
#include "node_counters.h"
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#include "uv.h"
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#include "env.h"
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#include "env-inl.h"
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#include <string.h>
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namespace node {
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using v8::FunctionCallbackInfo;
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using v8::FunctionTemplate;
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using v8::GCCallbackFlags;
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using v8::GCType;
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using v8::HandleScope;
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using v8::Isolate;
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using v8::Local;
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using v8::Object;
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using v8::String;
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using v8::Value;
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static uint64_t counter_gc_start_time;
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static uint64_t counter_gc_end_time;
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void COUNTER_NET_SERVER_CONNECTION(const FunctionCallbackInfo<Value>&) {
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NODE_COUNT_SERVER_CONN_OPEN();
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}
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void COUNTER_NET_SERVER_CONNECTION_CLOSE(const FunctionCallbackInfo<Value>&) {
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NODE_COUNT_SERVER_CONN_CLOSE();
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}
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void COUNTER_HTTP_SERVER_REQUEST(const FunctionCallbackInfo<Value>&) {
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NODE_COUNT_HTTP_SERVER_REQUEST();
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}
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void COUNTER_HTTP_SERVER_RESPONSE(const FunctionCallbackInfo<Value>&) {
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NODE_COUNT_HTTP_SERVER_RESPONSE();
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}
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void COUNTER_HTTP_CLIENT_REQUEST(const FunctionCallbackInfo<Value>&) {
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NODE_COUNT_HTTP_CLIENT_REQUEST();
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}
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void COUNTER_HTTP_CLIENT_RESPONSE(const FunctionCallbackInfo<Value>&) {
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NODE_COUNT_HTTP_CLIENT_RESPONSE();
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}
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static void counter_gc_start(Isolate* isolate,
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GCType type,
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GCCallbackFlags flags) {
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counter_gc_start_time = NODE_COUNT_GET_GC_RAWTIME();
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}
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static void counter_gc_done(Isolate* isolate,
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GCType type,
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GCCallbackFlags flags) {
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uint64_t endgc = NODE_COUNT_GET_GC_RAWTIME();
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if (endgc != 0) {
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uint64_t totalperiod = endgc - counter_gc_end_time;
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uint64_t gcperiod = endgc - counter_gc_start_time;
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if (totalperiod > 0) {
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unsigned int percent = static_cast<unsigned int>(
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(gcperiod * 100) / totalperiod);
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NODE_COUNT_GC_PERCENTTIME(percent);
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counter_gc_end_time = endgc;
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}
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}
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}
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void InitPerfCounters(Environment* env, Local<Object> target) {
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HandleScope scope(env->isolate());
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static struct {
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const char* name;
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void (*func)(const FunctionCallbackInfo<Value>&);
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} tab[] = {
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#define NODE_PROBE(name) #name, name
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{ NODE_PROBE(COUNTER_NET_SERVER_CONNECTION) },
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{ NODE_PROBE(COUNTER_NET_SERVER_CONNECTION_CLOSE) },
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{ NODE_PROBE(COUNTER_HTTP_SERVER_REQUEST) },
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{ NODE_PROBE(COUNTER_HTTP_SERVER_RESPONSE) },
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{ NODE_PROBE(COUNTER_HTTP_CLIENT_REQUEST) },
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{ NODE_PROBE(COUNTER_HTTP_CLIENT_RESPONSE) }
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#undef NODE_PROBE
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};
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for (size_t i = 0; i < arraysize(tab); i++) {
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Local<String> key = OneByteString(env->isolate(), tab[i].name);
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Local<Value> val = env->NewFunctionTemplate(tab[i].func)->GetFunction();
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target->Set(key, val);
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}
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// Only Windows performance counters supported
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// To enable other OS, use conditional compilation here
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InitPerfCountersWin32();
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// init times for GC percent calculation and hook callbacks
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counter_gc_start_time = NODE_COUNT_GET_GC_RAWTIME();
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counter_gc_end_time = counter_gc_start_time;
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env->isolate()->AddGCPrologueCallback(counter_gc_start);
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env->isolate()->AddGCEpilogueCallback(counter_gc_done);
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}
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void TermPerfCounters(Local<Object> target) {
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// Only Windows performance counters supported
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// To enable other OS, use conditional compilation here
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TermPerfCountersWin32();
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}
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} // namespace node
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