diff options
author | Michael Pratt <mpratt@google.com> | 2019-04-17 12:13:46 -0700 |
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committer | Shentubot <shentubot@google.com> | 2019-04-17 12:15:01 -0700 |
commit | 08d99c5fbea76ecc92038280387d24ecdf7ed814 (patch) | |
tree | 76df71b51b5515098e8c61978c441e8c530526ff /pkg/sentry/fs/host/util.go | |
parent | e091b4e7c07056e32120ab25cc9a78ed24f7c754 (diff) |
Convert poll/select to operate more directly on linux.PollFD
Current, doPoll copies the user struct pollfd array into a
[]syscalls.PollFD, which contains internal kdefs.FD and
waiter.EventMask types. While these are currently binary-compatible with
the Linux versions, we generally discourage copying directly to internal
types (someone may inadvertantly change kdefs.FD to uint64).
Instead, copy directly to a []linux.PollFD, which will certainly be
binary compatible. Most of syscalls/polling.go is included directly into
syscalls/linux/sys_poll.go, as it can then operate directly on
linux.PollFD. The additional syscalls.PollFD type is providing little
value.
I've also added explicit conversion functions for waiter.EventMask,
which creates the possibility of a different binary format.
PiperOrigin-RevId: 244042947
Change-Id: I24e5b642002a32b3afb95a9dcb80d4acd1288abf
Diffstat (limited to 'pkg/sentry/fs/host/util.go')
0 files changed, 0 insertions, 0 deletions