diff options
Diffstat (limited to 'src/runtime/scheduler.go')
| -rw-r--r-- | src/runtime/scheduler.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/runtime/scheduler.go b/src/runtime/scheduler.go index 42cc0fef8..c5286d33b 100644 --- a/src/runtime/scheduler.go +++ b/src/runtime/scheduler.go @@ -20,6 +20,10 @@ import ( const schedulerDebug = false +// On JavaScript, we can't do a blocking sleep. Instead we have to return and +// queue a new scheduler invocation using setTimeout. +const asyncScheduler = GOOS == "js" + var schedulerDone bool // Queues used by the scheduler. @@ -138,6 +142,7 @@ func scheduler() { if t == nil { if sleepQueue == nil { if asyncScheduler { + // JavaScript is treated specially, see below. return } waitForEvents() @@ -154,7 +159,8 @@ func scheduler() { if asyncScheduler { // The sleepTicks function above only sets a timeout at which // point the scheduler will be called again. It does not really - // sleep. + // sleep. So instead of sleeping, we return and expect to be + // called again. break } continue |