diff options
Diffstat (limited to 'src/runtime/runtime2.go')
| -rw-r--r-- | src/runtime/runtime2.go | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/runtime/runtime2.go b/src/runtime/runtime2.go index b40045e4a5..9cd4777cf8 100644 --- a/src/runtime/runtime2.go +++ b/src/runtime/runtime2.go @@ -510,6 +510,13 @@ const ( tlsSize = tlsSlots * goarch.PtrSize ) +// Values for m.freeWait. +const ( + freeMStack = 0 // M done, free stack and reference. + freeMRef = 1 // M done, free reference. + freeMWait = 2 // M still in use. +) + type m struct { g0 *g // goroutine with scheduling stack morebuf gobuf // gobuf arg to morestack @@ -540,7 +547,7 @@ type m struct { newSigstack bool // minit on C thread called sigaltstack printlock int8 incgo bool // m is executing a cgo call - freeWait uint32 // if == 0, safe to free g0 and delete m (atomic) + freeWait atomic.Uint32 // Whether it is safe to free g0 and delete m (one of freeMRef, freeMStack, freeMWait) fastrand uint64 needextram bool traceback uint8 |