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42 lines
1 KiB
Go
42 lines
1 KiB
Go
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package gelf
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import (
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"runtime"
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"strings"
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)
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// getCaller returns the filename and the line info of a function
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// further down in the call stack. Passing 0 in as callDepth would
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// return info on the function calling getCallerIgnoringLog, 1 the
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// parent function, and so on. Any suffixes passed to getCaller are
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// path fragments like "/pkg/log/log.go", and functions in the call
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// stack from that file are ignored.
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func getCaller(callDepth int, suffixesToIgnore ...string) (file string, line int) {
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// bump by 1 to ignore the getCaller (this) stackframe
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callDepth++
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outer:
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for {
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var ok bool
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_, file, line, ok = runtime.Caller(callDepth)
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if !ok {
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file = "???"
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line = 0
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break
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}
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for _, s := range suffixesToIgnore {
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if strings.HasSuffix(file, s) {
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callDepth++
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continue outer
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}
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}
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break
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}
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return
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}
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func getCallerIgnoringLogMulti(callDepth int) (string, int) {
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// the +1 is to ignore this (getCallerIgnoringLogMulti) frame
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return getCaller(callDepth+1, "/pkg/log/log.go", "/pkg/io/multi.go")
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}
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