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Diffstat (limited to 'Godeps/_workspace/src/github.com/lib/pq/buf.go')
-rw-r--r--Godeps/_workspace/src/github.com/lib/pq/buf.go90
1 files changed, 90 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/lib/pq/buf.go b/Godeps/_workspace/src/github.com/lib/pq/buf.go
new file mode 100644
index 000000000..e7ff57771
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/lib/pq/buf.go
@@ -0,0 +1,90 @@
+package pq
+
+import (
+ "bytes"
+ "encoding/binary"
+
+ "github.com/lib/pq/oid"
+)
+
+type readBuf []byte
+
+func (b *readBuf) int32() (n int) {
+ n = int(int32(binary.BigEndian.Uint32(*b)))
+ *b = (*b)[4:]
+ return
+}
+
+func (b *readBuf) oid() (n oid.Oid) {
+ n = oid.Oid(binary.BigEndian.Uint32(*b))
+ *b = (*b)[4:]
+ return
+}
+
+func (b *readBuf) int16() (n int) {
+ n = int(binary.BigEndian.Uint16(*b))
+ *b = (*b)[2:]
+ return
+}
+
+func (b *readBuf) string() string {
+ i := bytes.IndexByte(*b, 0)
+ if i < 0 {
+ errorf("invalid message format; expected string terminator")
+ }
+ s := (*b)[:i]
+ *b = (*b)[i+1:]
+ return string(s)
+}
+
+func (b *readBuf) next(n int) (v []byte) {
+ v = (*b)[:n]
+ *b = (*b)[n:]
+ return
+}
+
+func (b *readBuf) byte() byte {
+ return b.next(1)[0]
+}
+
+type writeBuf struct {
+ buf []byte
+ pos int
+}
+
+func (b *writeBuf) int32(n int) {
+ x := make([]byte, 4)
+ binary.BigEndian.PutUint32(x, uint32(n))
+ b.buf = append(b.buf, x...)
+}
+
+func (b *writeBuf) int16(n int) {
+ x := make([]byte, 2)
+ binary.BigEndian.PutUint16(x, uint16(n))
+ b.buf = append(b.buf, x...)
+}
+
+func (b *writeBuf) string(s string) {
+ b.buf = append(b.buf, (s + "\000")...)
+}
+
+func (b *writeBuf) byte(c byte) {
+ b.buf = append(b.buf, c)
+}
+
+func (b *writeBuf) bytes(v []byte) {
+ b.buf = append(b.buf, v...)
+}
+
+func (b *writeBuf) wrap() []byte {
+ p := b.buf[b.pos:]
+ binary.BigEndian.PutUint32(p, uint32(len(p)))
+ return b.buf
+}
+
+func (b *writeBuf) next(c byte) {
+ p := b.buf[b.pos:]
+ binary.BigEndian.PutUint32(p, uint32(len(p)))
+ b.pos = len(b.buf) + 1
+ b.buf = append(b.buf, c, 0, 0, 0, 0)
+}