GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: node_perf_common.h Lines: 1 1 100.0 %
Date: 2022-10-14 05:16:24 Branches: 0 0 - %

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#ifndef SRC_NODE_PERF_COMMON_H_
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#define SRC_NODE_PERF_COMMON_H_
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#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#include "aliased_buffer.h"
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#include "node.h"
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#include "uv.h"
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#include "v8.h"
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#include <algorithm>
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#include <iostream>
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#include <map>
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#include <string>
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namespace node {
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namespace performance {
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#define PERFORMANCE_NOW() uv_hrtime()
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// These occur before the environment is created. Cache them
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// here and add them to the milestones when the env is init'd.
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extern uint64_t performance_v8_start;
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#define NODE_PERFORMANCE_MILESTONES(V)                                        \
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  V(ENVIRONMENT, "environment")                                               \
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  V(NODE_START, "nodeStart")                                                  \
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  V(V8_START, "v8Start")                                                      \
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  V(LOOP_START, "loopStart")                                                  \
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  V(LOOP_EXIT, "loopExit")                                                    \
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  V(BOOTSTRAP_COMPLETE, "bootstrapComplete")
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#define NODE_PERFORMANCE_ENTRY_TYPES(V)                                       \
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  V(GC, "gc")                                                                 \
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  V(HTTP, "http")                                                             \
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  V(HTTP2, "http2")                                                           \
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  V(NET, "net")                                                               \
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  V(DNS, "dns")
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enum PerformanceMilestone {
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#define V(name, _) NODE_PERFORMANCE_MILESTONE_##name,
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  NODE_PERFORMANCE_MILESTONES(V)
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#undef V
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  NODE_PERFORMANCE_MILESTONE_INVALID
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};
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enum PerformanceEntryType {
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#define V(name, _) NODE_PERFORMANCE_ENTRY_TYPE_##name,
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  NODE_PERFORMANCE_ENTRY_TYPES(V)
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#undef V
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  NODE_PERFORMANCE_ENTRY_TYPE_INVALID
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};
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class PerformanceState {
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 public:
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  struct SerializeInfo {
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    AliasedBufferIndex root;
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    AliasedBufferIndex milestones;
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    AliasedBufferIndex observers;
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  };
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  explicit PerformanceState(v8::Isolate* isolate, const SerializeInfo* info);
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  SerializeInfo Serialize(v8::Local<v8::Context> context,
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                          v8::SnapshotCreator* creator);
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  void Deserialize(v8::Local<v8::Context> context);
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  friend std::ostream& operator<<(std::ostream& o, const SerializeInfo& i);
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  AliasedUint8Array root;
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  AliasedFloat64Array milestones;
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  AliasedUint32Array observers;
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  uint64_t performance_last_gc_start_mark = 0;
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  uint16_t current_gc_type = 0;
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  void Mark(enum PerformanceMilestone milestone,
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            uint64_t ts = PERFORMANCE_NOW());
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 private:
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  struct performance_state_internal {
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    // doubles first so that they are always sizeof(double)-aligned
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    double milestones[NODE_PERFORMANCE_MILESTONE_INVALID];
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    uint32_t observers[NODE_PERFORMANCE_ENTRY_TYPE_INVALID];
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  };
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};
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}  // namespace performance
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}  // namespace node
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#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#endif  // SRC_NODE_PERF_COMMON_H_