diff options
| author | Pietro Gagliardi <[email protected]> | 2014-07-01 11:40:11 -0400 |
|---|---|---|
| committer | Pietro Gagliardi <[email protected]> | 2014-07-01 11:40:11 -0400 |
| commit | ad2c8d90334ffa74a6a81308502bbeb9717c060d (patch) | |
| tree | 3a67efa014764e7a4f58fc4832a2c66ef11ebf7c /init.go | |
| parent | abb642071dd97dadbaa676415c7221201ed9be06 (diff) | |
Renamed init.go to uitask.go because that should have been done ages ago.
Diffstat (limited to 'init.go')
| -rw-r--r-- | init.go | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/init.go b/init.go deleted file mode 100644 index 72f24ef..0000000 --- a/init.go +++ /dev/null @@ -1,54 +0,0 @@ -// 11 february 2014 - -package ui - -import ( - "runtime" -) - -// Go sets up the UI environment and pulses Ready. -// If initialization fails, Go returns an error and Ready is not pulsed. -// Otherwise, Go does not return to its caller until Stop is pulsed, at which point Go() will return nil. -// After Go() returns, you cannot call future ui functions/methods meaningfully. -// Pulsing Stop will cause Go() to return immediately; the programmer is responsible for cleaning up (for instance, hiding open Windows) beforehand. -// -// It is not safe to call ui.Go() in a goroutine. It must be called directly from main(). This means if your code calls other code-modal servers (such as http.ListenAndServe()), they must be run from goroutines. (This is due to limitations in various OSs, such as Mac OS X.) -// -// Go() does not process the command line for flags (that is, it does not call flag.Parse()), nor does package ui add any of the underlying toolkit's supported command-line flags. -// If you must, and if the toolkit also has environment variable equivalents to these flags (for instance, GTK+), use those instead. -func Go() error { - runtime.LockOSThread() - if err := uiinit(); err != nil { - return err - } - Ready <- struct{}{} - close(Ready) - ui() - return nil -} - -// Ready is pulsed when Go() is ready to begin accepting requests to the safe methods. -// Go() will wait for something to receive on Ready, then Ready will be closed. -var Ready = make(chan struct{}) - -// Stop should be pulsed when you are ready for Go() to return. -// Pulsing Stop will cause Go() to return immediately; the programmer is responsible for cleaning up (for instance, hiding open Windows) beforehand. -// Do not pulse Stop more than once. -var Stop = make(chan struct{}) - -// This function is a simple helper functionn that basically pushes the effect of a function call for later. This allows the selected safe Window methods to be safe. -// TODO make sure this acts sanely if called from uitask itself -func touitask(f func()) { - done := make(chan struct{}) - defer close(done) - go func() { // to avoid locking uitask itself - done2 := make(chan struct{}) // make the chain uitask <- f <- uitask to avoid deadlocks - defer close(done2) - uitask <- func() { - f() - done2 <- struct{}{} - } - done <- <-done2 - }() - <-done -} |
