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| author | Josh Bleecher Snyder <josharian@gmail.com> | 2017-04-16 06:27:24 -0700 |
|---|---|---|
| committer | Josh Bleecher Snyder <josharian@gmail.com> | 2017-04-19 13:43:01 +0000 |
| commit | 17d497feaabfee336e9eaec91803a5e9aff77bdb (patch) | |
| tree | 49e4e74e99278a0ab424ecf839201001fab1d8ec /src/runtime/hashmap.go | |
| parent | a41b1d50523c3fc6fb874310d4340b845b13b250 (diff) | |
| download | go-17d497feaabfee336e9eaec91803a5e9aff77bdb.tar.xz | |
runtime: add bmap.setoverflow
bmap already has a overflow (getter) method.
Add a setoverflow (setter) method, for readability.
Updates #19931
Updates #19992
Change-Id: I00b3d94037c0d75508a7ebd51085c5c3857fb764
Reviewed-on: https://go-review.googlesource.com/40977
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/runtime/hashmap.go')
| -rw-r--r-- | src/runtime/hashmap.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/runtime/hashmap.go b/src/runtime/hashmap.go index 745ff40b5b..5243236f01 100644 --- a/src/runtime/hashmap.go +++ b/src/runtime/hashmap.go @@ -174,6 +174,10 @@ func (b *bmap) overflow(t *maptype) *bmap { return *(**bmap)(add(unsafe.Pointer(b), uintptr(t.bucketsize)-sys.PtrSize)) } +func (b *bmap) setoverflow(t *maptype, ovf *bmap) { + *(**bmap)(add(unsafe.Pointer(b), uintptr(t.bucketsize)-sys.PtrSize)) = ovf +} + // incrnoverflow increments h.noverflow. // noverflow counts the number of overflow buckets. // This is used to trigger same-size map growth. @@ -207,7 +211,7 @@ func (h *hmap) newoverflow(t *maptype, b *bmap) *bmap { h.createOverflow() *h.extra.overflow[0] = append(*h.extra.overflow[0], ovf) } - *(**bmap)(add(unsafe.Pointer(b), uintptr(t.bucketsize)-sys.PtrSize)) = ovf + b.setoverflow(t, ovf) return ovf } |