diff options
Diffstat (limited to 'nexgb')
| -rw-r--r-- | nexgb/xgb.go | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/nexgb/xgb.go b/nexgb/xgb.go index c52f722..ff4e461 100644 --- a/nexgb/xgb.go +++ b/nexgb/xgb.go @@ -188,10 +188,13 @@ type xid struct { } // generateXids sends new Ids down the channel for NewId to use. +// generateXids should be run in its own goroutine. // This needs to be updated to use the XC Misc extension once we run out of // new ids. // Thanks to libxcb/src/xcb_xid.c. This code is greatly inspired by it. func (conn *Conn) generateXIds() { + defer close(conn.xidChan) + // This requires some explanation. From the horse's mouth: // "The resource-id-mask contains a single contiguous set of bits (at least // 18). The client allocates resource IDs for types WINDOW, PIXMAP, @@ -234,7 +237,8 @@ func (c *Conn) newSequenceId() uint16 { return <-c.seqChan } -// generateSeqIds returns new sequence ids. +// generateSeqIds returns new sequence ids. It is meant to be run in its +// own goroutine. // A sequence id is generated for *every* request. It's the identifier used // to match up replies with requests. // Since sequence ids can only be 16 bit integers we start over at zero when it @@ -242,6 +246,8 @@ func (c *Conn) newSequenceId() uint16 { // N.B. As long as the cookie buffer is less than 2^16, there are no limitations // on the number (or kind) of requests made in sequence. func (c *Conn) generateSeqIds() { + defer close(c.seqChan) + seqid := uint16(1) for { c.seqChan <- seqid @@ -271,7 +277,11 @@ func (c *Conn) NewRequest(buf []byte, cookie *Cookie) { // sendRequests is run as a single goroutine that takes requests and writes // the bytes to the wire and adds the cookie to the cookie queue. +// It is meant to be run as its own goroutine. func (c *Conn) sendRequests() { + defer close(c.reqChan) + defer close(c.cookieChan) + for req := range c.reqChan { // ho there! if the cookie channel is nearly full, force a round // trip to clear out the cookie buffer. @@ -309,6 +319,8 @@ func (c *Conn) writeBuffer(buf []byte) { // channel. (It is an error if no such cookie exists in this case.) // Finally, cookies that came "before" this reply are always cleaned up. func (c *Conn) readResponses() { + defer close(c.eventChan) + var ( err Error event Event |