diff options
| -rw-r--r-- | whisper/mailserver/mailserver.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/whisper/mailserver/mailserver.go b/whisper/mailserver/mailserver.go index af9418d9f..d7af4baae 100644 --- a/whisper/mailserver/mailserver.go +++ b/whisper/mailserver/mailserver.go @@ -14,6 +14,7 @@ // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. +// Package mailserver provides a naive, example mailserver implementation package mailserver import ( @@ -26,9 +27,11 @@ import ( "github.com/ethereum/go-ethereum/rlp" whisper "github.com/ethereum/go-ethereum/whisper/whisperv6" "github.com/syndtr/goleveldb/leveldb" + "github.com/syndtr/goleveldb/leveldb/opt" "github.com/syndtr/goleveldb/leveldb/util" ) +// WMailServer represents the state data of the mailserver. type WMailServer struct { db *leveldb.DB w *whisper.Whisper @@ -42,6 +45,8 @@ type DBKey struct { raw []byte } +// NewDbKey is a helper function that creates a levelDB +// key from a hash and an integer. func NewDbKey(t uint32, h common.Hash) *DBKey { const sz = common.HashLength + 4 var k DBKey @@ -53,6 +58,7 @@ func NewDbKey(t uint32, h common.Hash) *DBKey { return &k } +// Init initializes the mail server. func (s *WMailServer) Init(shh *whisper.Whisper, path string, password string, pow float64) error { var err error if len(path) == 0 { @@ -63,7 +69,7 @@ func (s *WMailServer) Init(shh *whisper.Whisper, path string, password string, p return fmt.Errorf("password is not specified") } - s.db, err = leveldb.OpenFile(path, nil) + s.db, err = leveldb.OpenFile(path, &opt.Options{OpenFilesCacheCapacity: 32}) if err != nil { return fmt.Errorf("open DB file: %s", err) } @@ -82,12 +88,14 @@ func (s *WMailServer) Init(shh *whisper.Whisper, path string, password string, p return nil } +// Close cleans up before shutdown. func (s *WMailServer) Close() { if s.db != nil { s.db.Close() } } +// Archive stores the func (s *WMailServer) Archive(env *whisper.Envelope) { key := NewDbKey(env.Expiry-env.TTL, env.Hash()) rawEnvelope, err := rlp.EncodeToBytes(env) @@ -101,6 +109,8 @@ func (s *WMailServer) Archive(env *whisper.Envelope) { } } +// DeliverMail responds with saved messages upon request by the +// messages' owner. func (s *WMailServer) DeliverMail(peer *whisper.Peer, request *whisper.Envelope) { if peer == nil { log.Error("Whisper peer is nil") |