You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
// GoToSocial
|
|
// Copyright (C) GoToSocial Authors admin@gotosocial.org
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package util
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"runtime"
|
|
|
|
"codeberg.org/gruf/go-errors/v2"
|
|
)
|
|
|
|
// Must executes 'fn' repeatedly until
|
|
// it successfully returns without panic.
|
|
func Must(fn func()) {
|
|
if fn == nil {
|
|
panic("nil func")
|
|
}
|
|
for !func() (done bool) {
|
|
defer func() {
|
|
if r := recover(); r != nil {
|
|
// Gather calling func frames.
|
|
pcs := make([]uintptr, 10)
|
|
n := runtime.Callers(3, pcs)
|
|
i := runtime.CallersFrames(pcs[:n])
|
|
c := gatherFrames(i, n)
|
|
|
|
const msg = "recovered panic: %v\n\n%s\n"
|
|
fmt.Fprintf(os.Stderr, msg, r, c.String())
|
|
}
|
|
}()
|
|
fn()
|
|
done = true
|
|
return
|
|
}() { //nolint
|
|
}
|
|
}
|
|
|
|
// gatherFrames collates runtime frames from a frame iterator.
|
|
func gatherFrames(iter *runtime.Frames, n int) errors.Callers {
|
|
if iter == nil {
|
|
return nil
|
|
}
|
|
frames := make([]runtime.Frame, 0, n)
|
|
for {
|
|
f, ok := iter.Next()
|
|
if !ok {
|
|
break
|
|
}
|
|
frames = append(frames, f)
|
|
}
|
|
return frames
|
|
}
|