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Support Async Datastores #1

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Dec 16, 2019
Merged

Support Async Datastores #1

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f462ad6
update datastore interface to support asynchronous writes to datastor…
aschmahmann Dec 3, 2019
5901eab
add support for asynchronous datastores
aschmahmann Dec 5, 2019
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2 changes: 1 addition & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ require (
github.com/gogo/protobuf v1.3.1
github.com/ipfs/go-blockservice v0.1.2
github.com/ipfs/go-cid v0.0.3
github.com/ipfs/go-datastore v0.1.1
github.com/ipfs/go-datastore v0.3.0
github.com/ipfs/go-ipfs-blockstore v0.1.0
github.com/ipfs/go-ipfs-exchange-offline v0.0.1
github.com/ipfs/go-ipfs-util v0.0.1
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4 changes: 2 additions & 2 deletions go.sum
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Expand Up @@ -76,8 +76,8 @@ github.com/ipfs/go-datastore v0.0.1/go.mod h1:d4KVXhMt913cLBEI/PXAy6ko+W7e9AhyAK
github.com/ipfs/go-datastore v0.0.5/go.mod h1:d4KVXhMt913cLBEI/PXAy6ko+W7e9AhyAKBGh803qeE=
github.com/ipfs/go-datastore v0.1.0 h1:TOxI04l8CmO4zGtesENhzm4PwkFwJXY3rKiYaaMf9fI=
github.com/ipfs/go-datastore v0.1.0/go.mod h1:d4KVXhMt913cLBEI/PXAy6ko+W7e9AhyAKBGh803qeE=
github.com/ipfs/go-datastore v0.1.1 h1:F4k0TkTAZGLFzBOrVKDAvch6JZtuN4NHkfdcEZL50aI=
github.com/ipfs/go-datastore v0.1.1/go.mod h1:w38XXW9kVFNp57Zj5knbKWM2T+KOZCGDRVNdgPHtbHw=
github.com/ipfs/go-datastore v0.3.0 h1:9au0tYi/+n7xeUnGHG6davnS8x9hWbOzP/388Vx3CMs=
github.com/ipfs/go-datastore v0.3.0/go.mod h1:w38XXW9kVFNp57Zj5knbKWM2T+KOZCGDRVNdgPHtbHw=
github.com/ipfs/go-detect-race v0.0.1 h1:qX/xay2W3E4Q1U7d9lNs1sU9nvguX0a7319XbyQ6cOk=
github.com/ipfs/go-detect-race v0.0.1/go.mod h1:8BNT7shDZPo99Q74BpGMK+4D8Mn4j46UU0LZ723meps=
github.com/ipfs/go-ds-badger v0.0.2/go.mod h1:Y3QpeSFWQf6MopLTiZD+VT6IC1yZqaGmjvRcKeSGij8=
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21 changes: 21 additions & 0 deletions pin.go
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Expand Up @@ -192,6 +192,11 @@ type pinner struct {
dstore ds.Datastore
}

type syncDAGService interface {
ipld.DAGService
Sync() error
}

// NewPinner creates a new pinner using the given datastore as a backend
func NewPinner(dstore ds.Datastore, serv, internal ipld.DAGService) Pinner {

Expand Down Expand Up @@ -576,9 +581,25 @@ func (p *pinner) Flush(ctx context.Context) error {
k := root.Cid()

internalset.Add(k)

if syncDServ, ok := p.dserv.(syncDAGService); ok {
if err := syncDServ.Sync(); err != nil {
return fmt.Errorf("cannot sync pinned data: %v", err)
}
}

if syncInternal, ok := p.internal.(syncDAGService); ok {
if err := syncInternal.Sync(); err != nil {
return fmt.Errorf("cannot sync pinning data: %v", err)
}
}

if err := p.dstore.Put(pinDatastoreKey, k.Bytes()); err != nil {
return fmt.Errorf("cannot store pin state: %v", err)
}
if err := p.dstore.Sync(pinDatastoreKey); err != nil {
return fmt.Errorf("cannot sync pin state: %v", err)
}
p.internalPin = internalset
return nil
}
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