7b38fdd801
This commit moves a huge chunk of the code to go. The TODO.md document indicates what is left to be done.
59 lines
1 KiB
Go
59 lines
1 KiB
Go
package logging
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"github.com/tkw1536/goprogram/stream"
|
|
)
|
|
|
|
var logLevelMutex sync.Mutex
|
|
var logLevelMap = make(map[uintptr]int)
|
|
|
|
func getIndent(io stream.IOStream) int {
|
|
logLevelMutex.Lock()
|
|
defer logLevelMutex.Unlock()
|
|
|
|
id, ok := logID(io)
|
|
if !ok {
|
|
return 0
|
|
}
|
|
|
|
return logLevelMap[id]
|
|
}
|
|
|
|
func incIndent(io stream.IOStream) int {
|
|
logLevelMutex.Lock()
|
|
defer logLevelMutex.Unlock()
|
|
|
|
id, ok := logID(io)
|
|
if !ok { // if we don't have an id, then inc statically returns 1
|
|
return 1
|
|
}
|
|
|
|
logLevelMap[id]++
|
|
return logLevelMap[id]
|
|
}
|
|
|
|
func decIndent(io stream.IOStream) int {
|
|
logLevelMutex.Lock()
|
|
defer logLevelMutex.Unlock()
|
|
id, ok := logID(io)
|
|
|
|
if !ok { // if we don't have an id, then dec statically returns 0
|
|
return 0
|
|
}
|
|
|
|
logLevelMap[id]--
|
|
if logLevelMap[id] < 0 {
|
|
panic("DecLogIdent: decrease below 0")
|
|
}
|
|
return logLevelMap[id]
|
|
}
|
|
|
|
func logID(io stream.IOStream) (uintptr, bool) {
|
|
file, ok := io.Stdin.(interface{ Fd() uintptr })
|
|
if !ok {
|
|
return 0, false
|
|
}
|
|
return file.Fd(), true
|
|
}
|