SkDebugfTracer Class Reference

#include <SkDebugfTracer.h>

Inheritance diagram for SkDebugfTracer:

Public Member Functions
	SkDebugfTracer ()
SkEventTracer::Handle	addTraceEvent (char phase, const uint8_t *categoryEnabledFlag, const char *name, uint64_t id, int numArgs, const char **argNames, const uint8_t *argTypes, const uint64_t *argValues, uint8_t flags) override
void	updateTraceEventDuration (const uint8_t *categoryEnabledFlag, const char *name, SkEventTracer::Handle handle) override
const uint8_t *	getCategoryGroupEnabled (const char *name) override
const char *	getCategoryGroupName (const uint8_t *categoryEnabledFlag) override
void	newTracingSection (const char *name) override
Public Member Functions inherited from SkEventTracer
virtual	~SkEventTracer ()=default
virtual SkEventTracer::Handle	addTraceEvent (char phase, const uint8_t *categoryEnabledFlag, const char *name, uint64_t id, int32_t numArgs, const char **argNames, const uint8_t *argTypes, const uint64_t *argValues, uint8_t flags)=0

Additional Inherited Members
Public Types inherited from SkEventTracer
enum	CategoryGroupEnabledFlags { kEnabledForRecording_CategoryGroupEnabledFlags = 1 << 0 , kEnabledForMonitoring_CategoryGroupEnabledFlags = 1 << 1 , kEnabledForEventCallback_CategoryGroupEnabledFlags = 1 << 2 }
typedef uint64_t	Handle
Static Public Member Functions inherited from SkEventTracer
static bool	SetInstance (SkEventTracer *, bool leakTracer=false)
static SkEventTracer *	GetInstance ()
Protected Member Functions inherited from SkEventTracer
	SkEventTracer ()=default
	SkEventTracer (const SkEventTracer &)=delete
SkEventTracer &	operator= (const SkEventTracer &)=delete

Detailed Description

A SkEventTracer implementation that logs events using SkDebugf.

Definition at line 18 of file SkDebugfTracer.h.

Constructor & Destructor Documentation

SkDebugfTracer()

SkDebugfTracer::SkDebugfTracer ( )

inline

Definition at line 20 of file SkDebugfTracer.h.

{}

Member Function Documentation

addTraceEvent()

SkEventTracer::Handle SkDebugfTracer::addTraceEvent ( char  phase, const uint8_t *  categoryEnabledFlag, const char *  name, uint64_t  id, int  numArgs, const char **  argNames, const uint8_t *  argTypes, const uint64_t *  argValues, uint8_t  flags  )

override

Definition at line 13 of file SkDebugfTracer.cpp.

                                                                   {
    SkString args;
    for (int i = 0; i < numArgs; ++i) {
        if (i > 0) {
            args.append(", ");
        } else {
            args.append(" ");
        }
 
        uint64_t value = argValues[i];
        switch (argTypes[i]) {
            case TRACE_VALUE_TYPE_BOOL:
                args.appendf("%s=%s", argNames[i], value ? "true" : "false");
                break;
            case TRACE_VALUE_TYPE_UINT:
                args.appendf("%s=%" PRIu64, argNames[i], value);
                break;
            case TRACE_VALUE_TYPE_INT:
                args.appendf("%s=%" PRIi64, argNames[i], static_cast<int64_t>(value));
                break;
            case TRACE_VALUE_TYPE_DOUBLE:
                args.appendf("%s=%g", argNames[i], sk_bit_cast<double>(value));
                break;
            case TRACE_VALUE_TYPE_POINTER:
                args.appendf("%s=0x%p", argNames[i], skia_private::TraceValueAsPointer(value));
                break;
            case TRACE_VALUE_TYPE_STRING:
            case TRACE_VALUE_TYPE_COPY_STRING: {
                static constexpr size_t kMaxLen = 20;
                SkString string(skia_private::TraceValueAsString(value));
                size_t truncAt = string.size();
                size_t newLineAt = SkStrFind(string.c_str(), "\n");
                if (newLineAt > 0) {
                    truncAt = newLineAt;
                }
                truncAt = std::min(truncAt, kMaxLen);
                if (truncAt < string.size()) {
                    string.resize(truncAt);
                    string.append("...");
                }
                args.appendf("%s=\"%s\"", argNames[i], string.c_str());
                break;
            }
            default:
                args.appendf("%s=<unknown type>", argNames[i]);
                break;
        }
    }
    bool open = (phase == TRACE_EVENT_PHASE_COMPLETE);
    if (open) {
        const char* category = this->getCategoryGroupName(categoryEnabledFlag);
        SkDebugf("[% 2d]%s <%s> %s%s #%d {\n", (int)fIndent.size(), fIndent.c_str(), category, name,
                 args.c_str(), fCnt);
        fIndent.append(" ");
    } else {
        SkDebugf("%s%s #%d\n", name, args.c_str(), fCnt);
    }
    ++fCnt;
    return 0;
}

getCategoryGroupEnabled()

const uint8_t * SkDebugfTracer::getCategoryGroupEnabled ( const char *  name )

inlineoverridevirtual

Implements SkEventTracer.

Definition at line 36 of file SkDebugfTracer.h.

                                                                      {
        return fCategories.getCategoryGroupEnabled(name);
    }

getCategoryGroupName()

const char * SkDebugfTracer::getCategoryGroupName ( const uint8_t *  categoryEnabledFlag )

inlineoverridevirtual

Implements SkEventTracer.

Definition at line 40 of file SkDebugfTracer.h.

                                                                                  {
        return fCategories.getCategoryGroupName(categoryEnabledFlag);
    }

newTracingSection()

void SkDebugfTracer::newTracingSection ( const char *  name )

overridevirtual

Reimplemented from SkEventTracer.

Definition at line 89 of file SkDebugfTracer.cpp.

                                                       {
    SkDebugf("\n\n- - - New tracing section: %s - - -\n", name);
}

updateTraceEventDuration()

void SkDebugfTracer::updateTraceEventDuration ( const uint8_t *  categoryEnabledFlag, const char *  name, SkEventTracer::Handle  handle  )

overridevirtual

Implements SkEventTracer.

Definition at line 82 of file SkDebugfTracer.cpp.

                                                                          {
    fIndent.resize(fIndent.size() - 1);
    SkDebugf("[% 2d]%s } %s\n", (int)fIndent.size(), fIndent.c_str(), name);
}

---

The documentation for this class was generated from the following files:

• third_party/skia/tools/trace/SkDebugfTracer.h
• third_party/skia/tools/trace/SkDebugfTracer.cpp