diff options
Diffstat (limited to 'src/pkg/runtime/debug/garbage.go')
| -rw-r--r-- | src/pkg/runtime/debug/garbage.go | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/pkg/runtime/debug/garbage.go b/src/pkg/runtime/debug/garbage.go index 8337d5d5b..edb364387 100644 --- a/src/pkg/runtime/debug/garbage.go +++ b/src/pkg/runtime/debug/garbage.go @@ -91,7 +91,9 @@ func (x byDuration) Less(i, j int) bool { return x[i] < x[j] } // at startup, or 100 if the variable is not set. // A negative percentage disables garbage collection. func SetGCPercent(percent int) int { - return setGCPercent(percent) + old := setGCPercent(percent) + runtime.GC() + return old } // FreeOSMemory forces a garbage collection followed by an @@ -133,3 +135,19 @@ func SetMaxStack(bytes int) int { func SetMaxThreads(threads int) int { return setMaxThreads(threads) } + +// SetPanicOnFault controls the runtime's behavior when a program faults +// at an unexpected (non-nil) address. Such faults are typically caused by +// bugs such as runtime memory corruption, so the default response is to crash +// the program. Programs working with memory-mapped files or unsafe +// manipulation of memory may cause faults at non-nil addresses in less +// dramatic situations; SetPanicOnFault allows such programs to request +// that the runtime trigger only a panic, not a crash. +// SetPanicOnFault applies only to the current goroutine. +// It returns the previous setting. +func SetPanicOnFault(enabled bool) bool + +// WriteHeapDump writes a description of the heap and the objects in +// it to the given file descriptor. +// The heap dump format is defined at http://golang.org/s/go13heapdump. +func WriteHeapDump(fd uintptr) |