From 2dc9fc1626507bb54417fc4a1920b847cafb27a2 Mon Sep 17 00:00:00 2001
From: tobi <31960611+tsmethurst@users.noreply.github.com>
Date: Wed, 25 Aug 2021 15:34:33 +0200
Subject: Pg to bun (#148)

* start moving to bun

* changing more stuff

* more

* and yet more

* tests passing

* seems stable now

* more big changes

* small fix

* little fixes
---
 .../github.com/jackc/pgproto3/v2/cancel_request.go | 58 ++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 vendor/github.com/jackc/pgproto3/v2/cancel_request.go

(limited to 'vendor/github.com/jackc/pgproto3/v2/cancel_request.go')

diff --git a/vendor/github.com/jackc/pgproto3/v2/cancel_request.go b/vendor/github.com/jackc/pgproto3/v2/cancel_request.go
new file mode 100644
index 000000000..942e404be
--- /dev/null
+++ b/vendor/github.com/jackc/pgproto3/v2/cancel_request.go
@@ -0,0 +1,58 @@
+package pgproto3
+
+import (
+	"encoding/binary"
+	"encoding/json"
+	"errors"
+
+	"github.com/jackc/pgio"
+)
+
+const cancelRequestCode = 80877102
+
+type CancelRequest struct {
+	ProcessID uint32
+	SecretKey uint32
+}
+
+// Frontend identifies this message as sendable by a PostgreSQL frontend.
+func (*CancelRequest) Frontend() {}
+
+func (dst *CancelRequest) Decode(src []byte) error {
+	if len(src) != 12 {
+		return errors.New("bad cancel request size")
+	}
+
+	requestCode := binary.BigEndian.Uint32(src)
+
+	if requestCode != cancelRequestCode {
+		return errors.New("bad cancel request code")
+	}
+
+	dst.ProcessID = binary.BigEndian.Uint32(src[4:])
+	dst.SecretKey = binary.BigEndian.Uint32(src[8:])
+
+	return nil
+}
+
+// Encode encodes src into dst. dst will include the 4 byte message length.
+func (src *CancelRequest) Encode(dst []byte) []byte {
+	dst = pgio.AppendInt32(dst, 16)
+	dst = pgio.AppendInt32(dst, cancelRequestCode)
+	dst = pgio.AppendUint32(dst, src.ProcessID)
+	dst = pgio.AppendUint32(dst, src.SecretKey)
+	return dst
+}
+
+// MarshalJSON implements encoding/json.Marshaler.
+func (src CancelRequest) MarshalJSON() ([]byte, error) {
+	return json.Marshal(struct {
+		Type      string
+		ProcessID uint32
+		SecretKey uint32
+	}{
+		Type:      "CancelRequest",
+		ProcessID: src.ProcessID,
+		SecretKey: src.SecretKey,
+	})
+}
-- 
cgit v1.2.3