As shown below:
func Caller(skip int) (pc uintptr, file string, line int, ok bool)
Parameters: skip is the number of stack frames to be increased, 0-current function, 1-previous layer function,...
Return value:
pc is uintptr, which returns a function pointer
file is the file name directory where the function is located
Line number
OK Can information be obtained
Example:
We print relevant information with skip of 0-3 respectively
package main
import (
"fmt"
"runtime"
)
func main() {
for i := 0 ; i< 4; i++ {
test(i)
}
}
func test(skip int) {
call(skip)
}
func call(skip int) {
pc,file,line,ok := (skip)
pcName := (pc).Name() //Get the function name (("%v %s %d %t %s",pc,file,line,ok,pcName))
}
result:
4887700 D:/GoProject/src /test/ 19 true 4887585 D:/GoProject/src/ test/ 15 true 4887481 D:/GoProject/src /test/ 10 true 4383501 C:/Go/src/runtime/ 198 true
The analysis results can be seen
0-3 respectively, the current function is the previous caller of the current function,...
Supplement: golang prints all runtime call stacks
I won't say much nonsense, let's just read the code~
import "runtime"
buf := make([]byte, 1 << 20)
(buf, true)
("\n%s", buf)
The above is personal experience. I hope you can give you a reference and I hope you can support me more. If there are any mistakes or no complete considerations, I would like to give you advice.