mirror of
https://github.com/ProtonMail/proton-bridge.git
synced 2025-12-10 12:46:46 +00:00
97 lines
2.2 KiB
Go
97 lines
2.2 KiB
Go
// Copyright (c) 2023 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package try
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import (
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"fmt"
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"sync"
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"github.com/bradenaw/juniper/xerrors"
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"github.com/sirupsen/logrus"
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)
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// Catch tries to execute the `try` function, and if it fails or panics,
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// it executes the `handlers` functions in order.
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func Catch(try func() error, handlers ...func() error) error {
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if _, err := CatchVal(func() (any, error) { return nil, try() }, handlers...); err != nil {
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return err
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}
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return nil
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}
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// CatchVal tries to execute the `try` function, and if it fails or panics,
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// it executes the `handlers` functions in order.
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func CatchVal[T any](try func() (T, error), handlers ...func() error) (res T, err error) {
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defer func() {
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if r := recover(); r != nil {
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catch(handlers...)
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err = xerrors.WithStack(fmt.Errorf("panic: %v", r))
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}
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}()
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if res, err = try(); err != nil {
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catch(handlers...)
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return res, err
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}
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return res, nil
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}
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func catch(handlers ...func() error) {
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defer func() {
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if r := recover(); r != nil {
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logrus.WithError(xerrors.WithStack(fmt.Errorf("panic: %v", r))).Error("Catch handler panicked")
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}
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}()
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for _, handler := range handlers {
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if err := handler(); err != nil {
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logrus.WithError(err).Error("Catch handler failed")
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}
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}
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}
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type Group struct {
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mu sync.Mutex
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}
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func (wg *Group) GoTry(fn func(bool)) {
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if wg.mu.TryLock() {
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go func() {
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defer wg.mu.Unlock()
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fn(true)
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}()
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} else {
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go fn(false)
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}
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}
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func (wg *Group) Lock() {
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wg.mu.Lock()
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}
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func (wg *Group) Unlock() {
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wg.mu.Unlock()
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}
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func (wg *Group) Wait() {
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wg.mu.Lock()
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defer wg.mu.Unlock()
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}
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