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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-10-03 05:27:36 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-10-03 05:27:36 +0000 |
| commit | bd2e46c8255fad4e75e589b3286ead560e910b39 (patch) | |
| tree | 4f194bdb2e9edcc69ef2ab0dfb4aab15ca259267 /libgo/go/sync | |
| parent | bed6238ce677ba18a672a58bc077cec6de47f8d3 (diff) | |
| download | gcc-bd2e46c8255fad4e75e589b3286ead560e910b39.zip gcc-bd2e46c8255fad4e75e589b3286ead560e910b39.tar.gz gcc-bd2e46c8255fad4e75e589b3286ead560e910b39.tar.bz2 | |
libgo: Update to Go 1.0.3.
From-SVN: r192025
Diffstat (limited to 'libgo/go/sync')
| -rw-r--r-- | libgo/go/sync/waitgroup.go | 3 | ||||
| -rw-r--r-- | libgo/go/sync/waitgroup_test.go | 2 |
2 files changed, 3 insertions, 2 deletions
diff --git a/libgo/go/sync/waitgroup.go b/libgo/go/sync/waitgroup.go index 0165b1f..bc9e738 100644 --- a/libgo/go/sync/waitgroup.go +++ b/libgo/go/sync/waitgroup.go @@ -32,10 +32,11 @@ type WaitGroup struct { // Add adds delta, which may be negative, to the WaitGroup counter. // If the counter becomes zero, all goroutines blocked on Wait() are released. +// If the counter goes negative, Add panics. func (wg *WaitGroup) Add(delta int) { v := atomic.AddInt32(&wg.counter, int32(delta)) if v < 0 { - panic("sync: negative WaitGroup count") + panic("sync: negative WaitGroup counter") } if v > 0 || atomic.LoadInt32(&wg.waiters) == 0 { return diff --git a/libgo/go/sync/waitgroup_test.go b/libgo/go/sync/waitgroup_test.go index 34430fc..84c4cfc 100644 --- a/libgo/go/sync/waitgroup_test.go +++ b/libgo/go/sync/waitgroup_test.go @@ -50,7 +50,7 @@ func TestWaitGroup(t *testing.T) { func TestWaitGroupMisuse(t *testing.T) { defer func() { err := recover() - if err != "sync: negative WaitGroup count" { + if err != "sync: negative WaitGroup counter" { t.Fatalf("Unexpected panic: %#v", err) } }() |