unix: add Sysv shared memory support

Implements proposed API from https://golang.org/issue/46084. I chose
`SysvShmDesc` since it's a clearer name than `SysvShm`. Initially supports Darwin and Linux.

Solaris support has a blocker (https://golang.org/issue/46084#issuecomment-836980018)

For golang/go#46084

Change-Id: Ied0f768a74c448254adc3315348417825a7ec63e
GitHub-Last-Rev: befbd7af6b2f838753ac163ef387cebdb7957467
GitHub-Pull-Request: golang/sys#110
Reviewed-on: https://go-review.googlesource.com/c/sys/+/327830
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
This commit is contained in:
Dustin Spicuzza
2021-09-30 14:19:18 +00:00
committed by Tobias Klauser
parent 39ccf1dd6f
commit 969570ce7c
29 changed files with 841 additions and 8 deletions
+2
View File
@@ -1397,6 +1397,8 @@ const (
MADV_NOHUGEPAGE = 0xf
MADV_NORMAL = 0x0
MADV_PAGEOUT = 0x15
MADV_POPULATE_READ = 0x16
MADV_POPULATE_WRITE = 0x17
MADV_RANDOM = 0x1
MADV_REMOVE = 0x9
MADV_SEQUENTIAL = 0x2