forked from Silverfish/proton-bridge
80 lines
1.5 KiB
Go
80 lines
1.5 KiB
Go
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(xerrors.WithStack(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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