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authorAndrew Gallant <jamslam@gmail.com>2013-12-28 09:25:18 -0500
committerPřemysl Janouch <p@janouch.name>2018-09-08 16:49:20 +0200
commitf0385db3a71c33f19d27dafb2a5d158a8a875200 (patch)
tree066ddb0dbf9dae912836e784f8e05389b875d45f /nexgb/shm
parent5a07ac7108ef2b4074c058fbbd104c49d3cfdc9b (diff)
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Regenerate xgb with latest XML descriptions.
Diffstat (limited to 'nexgb/shm')
-rw-r--r--nexgb/shm/shm.go164
1 files changed, 164 insertions, 0 deletions
diff --git a/nexgb/shm/shm.go b/nexgb/shm/shm.go
index 3e086c4..e5841ca 100644
--- a/nexgb/shm/shm.go
+++ b/nexgb/shm/shm.go
@@ -276,6 +276,70 @@ func attachRequest(c *xgb.Conn, Shmseg Seg, Shmid uint32, ReadOnly bool) []byte
return buf
}
+// AttachFdCookie is a cookie used only for AttachFd requests.
+type AttachFdCookie struct {
+ *xgb.Cookie
+}
+
+// AttachFd sends an unchecked request.
+// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
+func AttachFd(c *xgb.Conn, Shmseg Seg, ReadOnly bool) AttachFdCookie {
+ if _, ok := c.Extensions["MIT-SHM"]; !ok {
+ panic("Cannot issue request 'AttachFd' using the uninitialized extension 'MIT-SHM'. shm.Init(connObj) must be called first.")
+ }
+ cookie := c.NewCookie(false, false)
+ c.NewRequest(attachFdRequest(c, Shmseg, ReadOnly), cookie)
+ return AttachFdCookie{cookie}
+}
+
+// AttachFdChecked sends a checked request.
+// If an error occurs, it can be retrieved using AttachFdCookie.Check()
+func AttachFdChecked(c *xgb.Conn, Shmseg Seg, ReadOnly bool) AttachFdCookie {
+ if _, ok := c.Extensions["MIT-SHM"]; !ok {
+ panic("Cannot issue request 'AttachFd' using the uninitialized extension 'MIT-SHM'. shm.Init(connObj) must be called first.")
+ }
+ cookie := c.NewCookie(true, false)
+ c.NewRequest(attachFdRequest(c, Shmseg, ReadOnly), cookie)
+ return AttachFdCookie{cookie}
+}
+
+// Check returns an error if one occurred for checked requests that are not expecting a reply.
+// This cannot be called for requests expecting a reply, nor for unchecked requests.
+func (cook AttachFdCookie) Check() error {
+ return cook.Cookie.Check()
+}
+
+// Write request to wire for AttachFd
+// attachFdRequest writes a AttachFd request to a byte slice.
+func attachFdRequest(c *xgb.Conn, Shmseg Seg, ReadOnly bool) []byte {
+ size := 12
+ b := 0
+ buf := make([]byte, size)
+
+ buf[b] = c.Extensions["MIT-SHM"]
+ b += 1
+
+ buf[b] = 6 // request opcode
+ b += 1
+
+ xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
+ b += 2
+
+ xgb.Put32(buf[b:], uint32(Shmseg))
+ b += 4
+
+ if ReadOnly {
+ buf[b] = 1
+ } else {
+ buf[b] = 0
+ }
+ b += 1
+
+ b += 3 // padding
+
+ return buf
+}
+
// CreatePixmapCookie is a cookie used only for CreatePixmap requests.
type CreatePixmapCookie struct {
*xgb.Cookie
@@ -351,6 +415,106 @@ func createPixmapRequest(c *xgb.Conn, Pid xproto.Pixmap, Drawable xproto.Drawabl
return buf
}
+// CreateSegmentCookie is a cookie used only for CreateSegment requests.
+type CreateSegmentCookie struct {
+ *xgb.Cookie
+}
+
+// CreateSegment sends a checked request.
+// If an error occurs, it will be returned with the reply by calling CreateSegmentCookie.Reply()
+func CreateSegment(c *xgb.Conn, Shmseg Seg, Size uint32, ReadOnly bool) CreateSegmentCookie {
+ if _, ok := c.Extensions["MIT-SHM"]; !ok {
+ panic("Cannot issue request 'CreateSegment' using the uninitialized extension 'MIT-SHM'. shm.Init(connObj) must be called first.")
+ }
+ cookie := c.NewCookie(true, true)
+ c.NewRequest(createSegmentRequest(c, Shmseg, Size, ReadOnly), cookie)
+ return CreateSegmentCookie{cookie}
+}
+
+// CreateSegmentUnchecked sends an unchecked request.
+// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
+func CreateSegmentUnchecked(c *xgb.Conn, Shmseg Seg, Size uint32, ReadOnly bool) CreateSegmentCookie {
+ if _, ok := c.Extensions["MIT-SHM"]; !ok {
+ panic("Cannot issue request 'CreateSegment' using the uninitialized extension 'MIT-SHM'. shm.Init(connObj) must be called first.")
+ }
+ cookie := c.NewCookie(false, true)
+ c.NewRequest(createSegmentRequest(c, Shmseg, Size, ReadOnly), cookie)
+ return CreateSegmentCookie{cookie}
+}
+
+// CreateSegmentReply represents the data returned from a CreateSegment request.
+type CreateSegmentReply struct {
+ Sequence uint16 // sequence number of the request for this reply
+ Length uint32 // number of bytes in this reply
+ Nfd byte
+ // padding: 24 bytes
+}
+
+// Reply blocks and returns the reply data for a CreateSegment request.
+func (cook CreateSegmentCookie) Reply() (*CreateSegmentReply, error) {
+ buf, err := cook.Cookie.Reply()
+ if err != nil {
+ return nil, err
+ }
+ if buf == nil {
+ return nil, nil
+ }
+ return createSegmentReply(buf), nil
+}
+
+// createSegmentReply reads a byte slice into a CreateSegmentReply value.
+func createSegmentReply(buf []byte) *CreateSegmentReply {
+ v := new(CreateSegmentReply)
+ b := 1 // skip reply determinant
+
+ v.Nfd = buf[b]
+ b += 1
+
+ v.Sequence = xgb.Get16(buf[b:])
+ b += 2
+
+ v.Length = xgb.Get32(buf[b:]) // 4-byte units
+ b += 4
+
+ b += 24 // padding
+
+ return v
+}
+
+// Write request to wire for CreateSegment
+// createSegmentRequest writes a CreateSegment request to a byte slice.
+func createSegmentRequest(c *xgb.Conn, Shmseg Seg, Size uint32, ReadOnly bool) []byte {
+ size := 16
+ b := 0
+ buf := make([]byte, size)
+
+ buf[b] = c.Extensions["MIT-SHM"]
+ b += 1
+
+ buf[b] = 7 // request opcode
+ b += 1
+
+ xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
+ b += 2
+
+ xgb.Put32(buf[b:], uint32(Shmseg))
+ b += 4
+
+ xgb.Put32(buf[b:], Size)
+ b += 4
+
+ if ReadOnly {
+ buf[b] = 1
+ } else {
+ buf[b] = 0
+ }
+ b += 1
+
+ b += 3 // padding
+
+ return buf
+}
+
// DetachCookie is a cookie used only for Detach requests.
type DetachCookie struct {
*xgb.Cookie