cpu_profiler_guard.h 文件参考

RAII guard that automatically calls CpuProfiler::begin() and CpuProfiler::end(). 更多...

#include "./macros.h"

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类
class	vlink::CpuProfilerGuard
	RAII scope guard that brackets a CpuProfiler active interval. 更多...

命名空间
namespace	vlink

详细描述

RAII guard that automatically calls CpuProfiler::begin() and CpuProfiler::end().

CpuProfilerGuard is a lightweight RAII wrapper that calls CpuProfiler::begin() in its constructor and CpuProfiler::end() in its destructor. This ensures the active interval is always closed, even if an exception is thrown.

Example

vlink::CpuProfiler profiler;
 
void process_frame() {
    vlink::CpuProfilerGuard guard(&profiler);
    // ... do work ...
}  // profiler.end() called here automatically
 
double usage = profiler.get();

注解

• Passing nullptr as the profiler pointer is safe; both constructor and destructor check for nullptr before calling any method.
• The guard is non-copyable and non-movable; it must be used as a stack-allocated object.
• Use CpuProfiler::is_global_enabled() to skip guard construction when profiling is disabled globally, reducing overhead in hot paths.