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panic.go
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panic.go
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package sync
import (
"fmt"
"os"
ds "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore"
dsq "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-datastore/query"
)
type datastore struct {
child ds.Datastore
}
// Wrap shims a datastore such than _any_ operation failing triggers a panic
// This is useful for debugging invariants.
func Wrap(d ds.Datastore) ds.Shim {
return &datastore{child: d}
}
func (d *datastore) Children() []ds.Datastore {
return []ds.Datastore{d.child}
}
func (d *datastore) Put(key ds.Key, value interface{}) error {
err := d.child.Put(key, value)
if err != nil {
fmt.Fprintf(os.Stdout, "panic datastore: %s", err)
panic("panic datastore: Put failed")
}
return nil
}
func (d *datastore) Get(key ds.Key) (interface{}, error) {
val, err := d.child.Get(key)
if err != nil {
fmt.Fprintf(os.Stdout, "panic datastore: %s", err)
panic("panic datastore: Get failed")
}
return val, nil
}
func (d *datastore) Has(key ds.Key) (bool, error) {
e, err := d.child.Has(key)
if err != nil {
fmt.Fprintf(os.Stdout, "panic datastore: %s", err)
panic("panic datastore: Has failed")
}
return e, nil
}
func (d *datastore) Delete(key ds.Key) error {
err := d.child.Delete(key)
if err != nil {
fmt.Fprintf(os.Stdout, "panic datastore: %s", err)
panic("panic datastore: Delete failed")
}
return nil
}
func (d *datastore) Query(q dsq.Query) (dsq.Results, error) {
r, err := d.child.Query(q)
if err != nil {
fmt.Fprintf(os.Stdout, "panic datastore: %s", err)
panic("panic datastore: Query failed")
}
return r, nil
}
type panicBatch struct {
t ds.Batch
}
func (p *panicBatch) Put(key ds.Key, val interface{}) error {
err := p.t.Put(key, val)
if err != nil {
fmt.Fprintf(os.Stdout, "panic datastore: %s", err)
panic("panic datastore: transaction put failed")
}
return nil
}
func (p *panicBatch) Delete(key ds.Key) error {
err := p.t.Delete(key)
if err != nil {
fmt.Fprintf(os.Stdout, "panic datastore: %s", err)
panic("panic datastore: transaction delete failed")
}
return nil
}
func (p *panicBatch) Commit() error {
err := p.t.Commit()
if err != nil {
fmt.Fprintf(os.Stdout, "panic datastore: %s", err)
panic("panic datastore: transaction commit failed")
}
return nil
}