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141 lines
4.1 KiB
141 lines
4.1 KiB
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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#include "node_counters.h"
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#include "uv.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::GCEpilogueCallback;
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using v8::GCPrologueCallback;
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using v8::GCType;
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using v8::Handle;
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using v8::HandleScope;
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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(GCType type, 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(GCType type, 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(Handle<Object> target) {
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HandleScope scope(node_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 (int i = 0; i < ARRAY_SIZE(tab); i++) {
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Local<String> key = OneByteString(node_isolate, tab[i].name);
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Local<Value> val = FunctionTemplate::New(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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v8::V8::AddGCPrologueCallback(counter_gc_start);
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v8::V8::AddGCEpilogueCallback(counter_gc_done);
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}
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void TermPerfCounters(Handle<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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