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package main
import (
"fmt"
"os"
"runtime"
"runtime/pprof"
)
func startCPUProfile(path string) (func() error, error) {
//#nosec G304
file, err := os.Create(path)
if err != nil {
return nil, fmt.Errorf("create %q: %w", path, err)
}
err = pprof.StartCPUProfile(file)
if err != nil {
_ = file.Close()
return nil, fmt.Errorf("start cpu profile %q: %w", path, err)
}
return func() error {
pprof.StopCPUProfile()
err := file.Close()
if err != nil {
return fmt.Errorf("close cpu profile %q: %w", path, err)
}
return nil
}, nil
}
func writeMemProfile(path string) error {
//#nosec G304
file, err := os.Create(path)
if err != nil {
return fmt.Errorf("create %q: %w", path, err)
}
runtime.GC()
err = pprof.WriteHeapProfile(file)
if err != nil {
_ = file.Close()
return fmt.Errorf("write heap profile %q: %w", path, err)
}
err = file.Close()
if err != nil {
return fmt.Errorf("close heap profile %q: %w", path, err)
}
return nil
}
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