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shm_open: comment with notes abt permissions

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Beau McCartney
2024-03-19 09:36:49 -06:00
parent 1758bd683e
commit 43e8da2e06
1 changed files with 5 additions and 0 deletions
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core/sys/darwin/xnu_system_call_helpers.odin
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@@ -206,6 +206,11 @@ sys_shm_open :: proc(name: string, oflag: Open_Flags, mode: Permission) -> (c.in
result := syscall_shm_open(cname, cmode, cflags) result := syscall_shm_open(cname, cmode, cflags)
state := result != -1 state := result != -1
// NOTE(beau): Presently fstat doesn't report any changed permissions
// on the file descriptor even with this fchmod (which fails with a
// non-zero return). I can also reproduce this with the syscalls in c
// so I suspect it's not odin's bug. I've left the fchmod in case the
// underlying issue is fixed.
if state && cflags != 0 { if state && cflags != 0 {
state = (syscall_fchmod(result, cflags) != -1) state = (syscall_fchmod(result, cflags) != -1)
} }