Read/Write mutex for Extensions map

1 files changed, 158 insertions, 6 deletions

diff --git a/nexgb/xprint/xprint.go b/nexgb/xprint/xprint.go
index 5ed49a0..d692aed 100644
--- a/nexgb/xprint/xprint.go
+++ b/nexgb/xprint/xprint.go
@@ -19,16 +19,15 @@ func Init(c *xgb.Conn) error {
 		return xgb.Errorf("No extension named XpExtension could be found on on the server.")
 	}
 
-	xgb.ExtLock.Lock()
+	c.ExtLock.Lock()
 	c.Extensions["XpExtension"] = reply.MajorOpcode
+	c.ExtLock.Unlock()
 	for evNum, fun := range xgb.NewExtEventFuncs["XpExtension"] {
 		xgb.NewEventFuncs[int(reply.FirstEvent)+evNum] = fun
 	}
 	for errNum, fun := range xgb.NewExtErrorFuncs["XpExtension"] {
 		xgb.NewErrorFuncs[int(reply.FirstError)+errNum] = fun
 	}
-	xgb.ExtLock.Unlock()
-
 	return nil
 }
 
@@ -438,6 +437,8 @@ type CreateContextCookie struct {
 // CreateContext sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func CreateContext(c *xgb.Conn, ContextId uint32, PrinterNameLen uint32, LocaleLen uint32, PrinterName []String8, Locale []String8) CreateContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'CreateContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -449,6 +450,8 @@ func CreateContext(c *xgb.Conn, ContextId uint32, PrinterNameLen uint32, LocaleL
 // CreateContextChecked sends a checked request.
 // If an error occurs, it can be retrieved using CreateContextCookie.Check()
 func CreateContextChecked(c *xgb.Conn, ContextId uint32, PrinterNameLen uint32, LocaleLen uint32, PrinterName []String8, Locale []String8) CreateContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'CreateContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -470,7 +473,9 @@ func createContextRequest(c *xgb.Conn, ContextId uint32, PrinterNameLen uint32,
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 2 // request opcode
@@ -509,6 +514,8 @@ type PrintDestroyContextCookie struct {
 // PrintDestroyContext sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintDestroyContext(c *xgb.Conn, Context uint32) PrintDestroyContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintDestroyContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -520,6 +527,8 @@ func PrintDestroyContext(c *xgb.Conn, Context uint32) PrintDestroyContextCookie
 // PrintDestroyContextChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintDestroyContextCookie.Check()
 func PrintDestroyContextChecked(c *xgb.Conn, Context uint32) PrintDestroyContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintDestroyContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -541,7 +550,9 @@ func printDestroyContextRequest(c *xgb.Conn, Context uint32) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 5 // request opcode
@@ -564,6 +575,8 @@ type PrintEndDocCookie struct {
 // PrintEndDoc sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintEndDoc(c *xgb.Conn, Cancel bool) PrintEndDocCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintEndDoc' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -575,6 +588,8 @@ func PrintEndDoc(c *xgb.Conn, Cancel bool) PrintEndDocCookie {
 // PrintEndDocChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintEndDocCookie.Check()
 func PrintEndDocChecked(c *xgb.Conn, Cancel bool) PrintEndDocCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintEndDoc' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -596,7 +611,9 @@ func printEndDocRequest(c *xgb.Conn, Cancel bool) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 10 // request opcode
@@ -623,6 +640,8 @@ type PrintEndJobCookie struct {
 // PrintEndJob sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintEndJob(c *xgb.Conn, Cancel bool) PrintEndJobCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintEndJob' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -634,6 +653,8 @@ func PrintEndJob(c *xgb.Conn, Cancel bool) PrintEndJobCookie {
 // PrintEndJobChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintEndJobCookie.Check()
 func PrintEndJobChecked(c *xgb.Conn, Cancel bool) PrintEndJobCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintEndJob' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -655,7 +676,9 @@ func printEndJobRequest(c *xgb.Conn, Cancel bool) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 8 // request opcode
@@ -682,6 +705,8 @@ type PrintEndPageCookie struct {
 // PrintEndPage sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintEndPage(c *xgb.Conn, Cancel bool) PrintEndPageCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintEndPage' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -693,6 +718,8 @@ func PrintEndPage(c *xgb.Conn, Cancel bool) PrintEndPageCookie {
 // PrintEndPageChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintEndPageCookie.Check()
 func PrintEndPageChecked(c *xgb.Conn, Cancel bool) PrintEndPageCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintEndPage' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -714,7 +741,9 @@ func printEndPageRequest(c *xgb.Conn, Cancel bool) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 14 // request opcode
@@ -743,6 +772,8 @@ type PrintGetAttributesCookie struct {
 // PrintGetAttributes sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintGetAttributesCookie.Reply()
 func PrintGetAttributes(c *xgb.Conn, Context Pcontext, Pool byte) PrintGetAttributesCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetAttributes' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -754,6 +785,8 @@ func PrintGetAttributes(c *xgb.Conn, Context Pcontext, Pool byte) PrintGetAttrib
 // PrintGetAttributesUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintGetAttributesUnchecked(c *xgb.Conn, Context Pcontext, Pool byte) PrintGetAttributesCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetAttributes' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -769,7 +802,7 @@ type PrintGetAttributesReply struct {
 	// padding: 1 bytes
 	StringLen uint32
 	// padding: 20 bytes
-	Attributes String8
+	Attributes []String8 // size: xgb.Pad((int(StringLen) * 1))
 }
 
 // Reply blocks and returns the reply data for a PrintGetAttributes request.
@@ -802,8 +835,11 @@ func printGetAttributesReply(buf []byte) *PrintGetAttributesReply {
 
 	b += 20 // padding
 
-	v.Attributes = String8(buf[b])
-	b += 1
+	v.Attributes = make([]String8, v.StringLen)
+	for i := 0; i < int(v.StringLen); i++ {
+		v.Attributes[i] = String8(buf[b])
+		b += 1
+	}
 
 	return v
 }
@@ -815,7 +851,9 @@ func printGetAttributesRequest(c *xgb.Conn, Context Pcontext, Pool byte) []byte
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 17 // request opcode
@@ -843,6 +881,8 @@ type PrintGetContextCookie struct {
 // PrintGetContext sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintGetContextCookie.Reply()
 func PrintGetContext(c *xgb.Conn) PrintGetContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -854,6 +894,8 @@ func PrintGetContext(c *xgb.Conn) PrintGetContextCookie {
 // PrintGetContextUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintGetContextUnchecked(c *xgb.Conn) PrintGetContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -908,7 +950,9 @@ func printGetContextRequest(c *xgb.Conn) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 4 // request opcode
@@ -928,6 +972,8 @@ type PrintGetDocumentDataCookie struct {
 // PrintGetDocumentData sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintGetDocumentDataCookie.Reply()
 func PrintGetDocumentData(c *xgb.Conn, Context Pcontext, MaxBytes uint32) PrintGetDocumentDataCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetDocumentData' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -939,6 +985,8 @@ func PrintGetDocumentData(c *xgb.Conn, Context Pcontext, MaxBytes uint32) PrintG
 // PrintGetDocumentDataUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintGetDocumentDataUnchecked(c *xgb.Conn, Context Pcontext, MaxBytes uint32) PrintGetDocumentDataCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetDocumentData' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1009,7 +1057,9 @@ func printGetDocumentDataRequest(c *xgb.Conn, Context Pcontext, MaxBytes uint32)
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 12 // request opcode
@@ -1035,6 +1085,8 @@ type PrintGetImageResolutionCookie struct {
 // PrintGetImageResolution sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintGetImageResolutionCookie.Reply()
 func PrintGetImageResolution(c *xgb.Conn, Context Pcontext) PrintGetImageResolutionCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetImageResolution' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1046,6 +1098,8 @@ func PrintGetImageResolution(c *xgb.Conn, Context Pcontext) PrintGetImageResolut
 // PrintGetImageResolutionUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintGetImageResolutionUnchecked(c *xgb.Conn, Context Pcontext) PrintGetImageResolutionCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetImageResolution' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1100,7 +1154,9 @@ func printGetImageResolutionRequest(c *xgb.Conn, Context Pcontext) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 24 // request opcode
@@ -1123,6 +1179,8 @@ type PrintGetOneAttributesCookie struct {
 // PrintGetOneAttributes sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintGetOneAttributesCookie.Reply()
 func PrintGetOneAttributes(c *xgb.Conn, Context Pcontext, NameLen uint32, Pool byte, Name []String8) PrintGetOneAttributesCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetOneAttributes' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1134,6 +1192,8 @@ func PrintGetOneAttributes(c *xgb.Conn, Context Pcontext, NameLen uint32, Pool b
 // PrintGetOneAttributesUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintGetOneAttributesUnchecked(c *xgb.Conn, Context Pcontext, NameLen uint32, Pool byte, Name []String8) PrintGetOneAttributesCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetOneAttributes' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1198,7 +1258,9 @@ func printGetOneAttributesRequest(c *xgb.Conn, Context Pcontext, NameLen uint32,
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 19 // request opcode
@@ -1234,6 +1296,8 @@ type PrintGetPageDimensionsCookie struct {
 // PrintGetPageDimensions sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintGetPageDimensionsCookie.Reply()
 func PrintGetPageDimensions(c *xgb.Conn, Context Pcontext) PrintGetPageDimensionsCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetPageDimensions' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1245,6 +1309,8 @@ func PrintGetPageDimensions(c *xgb.Conn, Context Pcontext) PrintGetPageDimension
 // PrintGetPageDimensionsUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintGetPageDimensionsUnchecked(c *xgb.Conn, Context Pcontext) PrintGetPageDimensionsCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetPageDimensions' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1319,7 +1385,9 @@ func printGetPageDimensionsRequest(c *xgb.Conn, Context Pcontext) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 21 // request opcode
@@ -1342,6 +1410,8 @@ type PrintGetPrinterListCookie struct {
 // PrintGetPrinterList sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintGetPrinterListCookie.Reply()
 func PrintGetPrinterList(c *xgb.Conn, PrinterNameLen uint32, LocaleLen uint32, PrinterName []String8, Locale []String8) PrintGetPrinterListCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetPrinterList' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1353,6 +1423,8 @@ func PrintGetPrinterList(c *xgb.Conn, PrinterNameLen uint32, LocaleLen uint32, P
 // PrintGetPrinterListUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintGetPrinterListUnchecked(c *xgb.Conn, PrinterNameLen uint32, LocaleLen uint32, PrinterName []String8, Locale []String8) PrintGetPrinterListCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetPrinterList' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1414,7 +1486,9 @@ func printGetPrinterListRequest(c *xgb.Conn, PrinterNameLen uint32, LocaleLen ui
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 1 // request opcode
@@ -1450,6 +1524,8 @@ type PrintGetScreenOfContextCookie struct {
 // PrintGetScreenOfContext sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintGetScreenOfContextCookie.Reply()
 func PrintGetScreenOfContext(c *xgb.Conn) PrintGetScreenOfContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetScreenOfContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1461,6 +1537,8 @@ func PrintGetScreenOfContext(c *xgb.Conn) PrintGetScreenOfContextCookie {
 // PrintGetScreenOfContextUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintGetScreenOfContextUnchecked(c *xgb.Conn) PrintGetScreenOfContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintGetScreenOfContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1515,7 +1593,9 @@ func printGetScreenOfContextRequest(c *xgb.Conn) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 6 // request opcode
@@ -1535,6 +1615,8 @@ type PrintInputSelectedCookie struct {
 // PrintInputSelected sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintInputSelectedCookie.Reply()
 func PrintInputSelected(c *xgb.Conn, Context Pcontext) PrintInputSelectedCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintInputSelected' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1546,6 +1628,8 @@ func PrintInputSelected(c *xgb.Conn, Context Pcontext) PrintInputSelectedCookie
 // PrintInputSelectedUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintInputSelectedUnchecked(c *xgb.Conn, Context Pcontext) PrintInputSelectedCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintInputSelected' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1620,7 +1704,9 @@ func printInputSelectedRequest(c *xgb.Conn, Context Pcontext) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 16 // request opcode
@@ -1643,6 +1729,8 @@ type PrintPutDocumentDataCookie struct {
 // PrintPutDocumentData sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintPutDocumentData(c *xgb.Conn, Drawable xproto.Drawable, LenData uint32, LenFmt uint16, LenOptions uint16, Data []byte, DocFormat []String8, Options []String8) PrintPutDocumentDataCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintPutDocumentData' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1654,6 +1742,8 @@ func PrintPutDocumentData(c *xgb.Conn, Drawable xproto.Drawable, LenData uint32,
 // PrintPutDocumentDataChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintPutDocumentDataCookie.Check()
 func PrintPutDocumentDataChecked(c *xgb.Conn, Drawable xproto.Drawable, LenData uint32, LenFmt uint16, LenOptions uint16, Data []byte, DocFormat []String8, Options []String8) PrintPutDocumentDataCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintPutDocumentData' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1675,7 +1765,9 @@ func printPutDocumentDataRequest(c *xgb.Conn, Drawable xproto.Drawable, LenData
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 11 // request opcode
@@ -1720,6 +1812,8 @@ type PrintQueryScreensCookie struct {
 // PrintQueryScreens sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintQueryScreensCookie.Reply()
 func PrintQueryScreens(c *xgb.Conn) PrintQueryScreensCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintQueryScreens' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1731,6 +1825,8 @@ func PrintQueryScreens(c *xgb.Conn) PrintQueryScreensCookie {
 // PrintQueryScreensUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintQueryScreensUnchecked(c *xgb.Conn) PrintQueryScreensCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintQueryScreens' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1795,7 +1891,9 @@ func printQueryScreensRequest(c *xgb.Conn) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 22 // request opcode
@@ -1815,6 +1913,8 @@ type PrintQueryVersionCookie struct {
 // PrintQueryVersion sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintQueryVersionCookie.Reply()
 func PrintQueryVersion(c *xgb.Conn) PrintQueryVersionCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintQueryVersion' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1826,6 +1926,8 @@ func PrintQueryVersion(c *xgb.Conn) PrintQueryVersionCookie {
 // PrintQueryVersionUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintQueryVersionUnchecked(c *xgb.Conn) PrintQueryVersionCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintQueryVersion' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1884,7 +1986,9 @@ func printQueryVersionRequest(c *xgb.Conn) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 0 // request opcode
@@ -1904,6 +2008,8 @@ type PrintRehashPrinterListCookie struct {
 // PrintRehashPrinterList sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintRehashPrinterList(c *xgb.Conn) PrintRehashPrinterListCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintRehashPrinterList' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1915,6 +2021,8 @@ func PrintRehashPrinterList(c *xgb.Conn) PrintRehashPrinterListCookie {
 // PrintRehashPrinterListChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintRehashPrinterListCookie.Check()
 func PrintRehashPrinterListChecked(c *xgb.Conn) PrintRehashPrinterListCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintRehashPrinterList' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1936,7 +2044,9 @@ func printRehashPrinterListRequest(c *xgb.Conn) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 20 // request opcode
@@ -1956,6 +2066,8 @@ type PrintSelectInputCookie struct {
 // PrintSelectInput sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintSelectInput(c *xgb.Conn, Context Pcontext, EventMask uint32, EventList []uint32) PrintSelectInputCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintSelectInput' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1967,6 +2079,8 @@ func PrintSelectInput(c *xgb.Conn, Context Pcontext, EventMask uint32, EventList
 // PrintSelectInputChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintSelectInputCookie.Check()
 func PrintSelectInputChecked(c *xgb.Conn, Context Pcontext, EventMask uint32, EventList []uint32) PrintSelectInputCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintSelectInput' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -1988,7 +2102,9 @@ func printSelectInputRequest(c *xgb.Conn, Context Pcontext, EventMask uint32, Ev
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 15 // request opcode
@@ -2019,6 +2135,8 @@ type PrintSetAttributesCookie struct {
 // PrintSetAttributes sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintSetAttributes(c *xgb.Conn, Context Pcontext, StringLen uint32, Pool byte, Rule byte, Attributes []String8) PrintSetAttributesCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintSetAttributes' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2030,6 +2148,8 @@ func PrintSetAttributes(c *xgb.Conn, Context Pcontext, StringLen uint32, Pool by
 // PrintSetAttributesChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintSetAttributesCookie.Check()
 func PrintSetAttributesChecked(c *xgb.Conn, Context Pcontext, StringLen uint32, Pool byte, Rule byte, Attributes []String8) PrintSetAttributesCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintSetAttributes' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2051,7 +2171,9 @@ func printSetAttributesRequest(c *xgb.Conn, Context Pcontext, StringLen uint32,
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 18 // request opcode
@@ -2090,6 +2212,8 @@ type PrintSetContextCookie struct {
 // PrintSetContext sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintSetContext(c *xgb.Conn, Context uint32) PrintSetContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintSetContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2101,6 +2225,8 @@ func PrintSetContext(c *xgb.Conn, Context uint32) PrintSetContextCookie {
 // PrintSetContextChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintSetContextCookie.Check()
 func PrintSetContextChecked(c *xgb.Conn, Context uint32) PrintSetContextCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintSetContext' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2122,7 +2248,9 @@ func printSetContextRequest(c *xgb.Conn, Context uint32) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 3 // request opcode
@@ -2145,6 +2273,8 @@ type PrintSetImageResolutionCookie struct {
 // PrintSetImageResolution sends a checked request.
 // If an error occurs, it will be returned with the reply by calling PrintSetImageResolutionCookie.Reply()
 func PrintSetImageResolution(c *xgb.Conn, Context Pcontext, ImageResolution uint16) PrintSetImageResolutionCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintSetImageResolution' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2156,6 +2286,8 @@ func PrintSetImageResolution(c *xgb.Conn, Context Pcontext, ImageResolution uint
 // PrintSetImageResolutionUnchecked sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintSetImageResolutionUnchecked(c *xgb.Conn, Context Pcontext, ImageResolution uint16) PrintSetImageResolutionCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintSetImageResolution' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2215,7 +2347,9 @@ func printSetImageResolutionRequest(c *xgb.Conn, Context Pcontext, ImageResoluti
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 23 // request opcode
@@ -2241,6 +2375,8 @@ type PrintStartDocCookie struct {
 // PrintStartDoc sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintStartDoc(c *xgb.Conn, DriverMode byte) PrintStartDocCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintStartDoc' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2252,6 +2388,8 @@ func PrintStartDoc(c *xgb.Conn, DriverMode byte) PrintStartDocCookie {
 // PrintStartDocChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintStartDocCookie.Check()
 func PrintStartDocChecked(c *xgb.Conn, DriverMode byte) PrintStartDocCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintStartDoc' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2273,7 +2411,9 @@ func printStartDocRequest(c *xgb.Conn, DriverMode byte) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 9 // request opcode
@@ -2296,6 +2436,8 @@ type PrintStartJobCookie struct {
 // PrintStartJob sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintStartJob(c *xgb.Conn, OutputMode byte) PrintStartJobCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintStartJob' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2307,6 +2449,8 @@ func PrintStartJob(c *xgb.Conn, OutputMode byte) PrintStartJobCookie {
 // PrintStartJobChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintStartJobCookie.Check()
 func PrintStartJobChecked(c *xgb.Conn, OutputMode byte) PrintStartJobCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintStartJob' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2328,7 +2472,9 @@ func printStartJobRequest(c *xgb.Conn, OutputMode byte) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 7 // request opcode
@@ -2351,6 +2497,8 @@ type PrintStartPageCookie struct {
 // PrintStartPage sends an unchecked request.
 // If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
 func PrintStartPage(c *xgb.Conn, Window xproto.Window) PrintStartPageCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintStartPage' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2362,6 +2510,8 @@ func PrintStartPage(c *xgb.Conn, Window xproto.Window) PrintStartPageCookie {
 // PrintStartPageChecked sends a checked request.
 // If an error occurs, it can be retrieved using PrintStartPageCookie.Check()
 func PrintStartPageChecked(c *xgb.Conn, Window xproto.Window) PrintStartPageCookie {
+	c.ExtLock.RLock()
+	defer c.ExtLock.RUnlock()
 	if _, ok := c.Extensions["XpExtension"]; !ok {
 		panic("Cannot issue request 'PrintStartPage' using the uninitialized extension 'XpExtension'. xprint.Init(connObj) must be called first.")
 	}
@@ -2383,7 +2533,9 @@ func printStartPageRequest(c *xgb.Conn, Window xproto.Window) []byte {
 	b := 0
 	buf := make([]byte, size)
 
+	c.ExtLock.RLock()
 	buf[b] = c.Extensions["XpExtension"]
+	c.ExtLock.RUnlock()
 	b += 1
 
 	buf[b] = 13 // request opcode