trace

package

v0.2.0 Latest Latest Go to latest Published: Mar 29, 2021 License: MIT Imports: 7 Imported by: 3

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Repository

github.com/billziss-gh/golib

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Documentation ¶

Overview ¶

Package trace provides a simple tracing facility for Go functions. Given the function below, program execution will be traced whenever the function is entered or exited.

func fn(p1 ptype1, p2 ptype2, ...) (r1 rtyp1, r2 rtype2, ...) {
    defer trace.Trace(0, "TRACE", p1, p2)(&r1, &r2)
    // ...
}

The trace facility is disabled unless the variable Verbose is true and the environment variable GOLIB_TRACE is set to a pattern matching one of the traced functions. A pattern is a a comma-separated list of file-style patterns containing wildcards such as * and ?.

Index ¶

Variables
func Trace(skip int, prfx string, vals ...interface{}) func(vals ...interface{})
func Tracef(skip int, form string, vals ...interface{})

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	Verbose = false
	Pattern = os.Getenv("GOLIB_TRACE")

	Logger = log.New(terminal.Stderr, "", log.LstdFlags)
)

Functions ¶

func Trace ¶

func Trace(skip int, prfx string, vals ...interface{}) func(vals ...interface{})

func Tracef ¶

func Tracef(skip int, form string, vals ...interface{})

Types ¶

This section is empty.

Source Files ¶

View all Source files

trace.go

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