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222 Commits

Author SHA1 Message Date
Pat Hickey
9e04c5333c poll oneoff tests: what if we read a non-empty file? 2021-05-05 13:08:33 -07:00
Pat Hickey
e0f3423161 support windows 2021-05-04 14:28:45 -07:00
Pat Hickey
f76fe8b764 rewrite wasi-tokio as just an task::block_in_place wrapper on cap-std-sync 2021-05-04 14:15:50 -07:00
Pat Hickey
3df9cddf10 better unit test 2021-05-03 11:59:30 -07:00
Pat Hickey
7f34ccb909 various fixes to the design of Poll 2021-04-30 15:38:18 -07:00
Pat Hickey
b7efcbe80f jump through enough hoops for the poll lifetime to work out 
you program rust for a few years and you think you're done tearing your
hair out over lifetimes, well, you'll find yourself wrong
 2021-04-29 16:50:22 -07:00
Pat Hickey
b3e1ab4553 restructure Poll to hold a Table and fd instead of a RefMut<dyn WasiFile> 
unfortunately, the borrow checker defeated me: changing the
RwSubscription file form a Ref to a RefMut turned into borrow checker
errors in the impl of the poll_oneoff trait method.

This implementation makes an end run by having Poll hold onto the table
and fd, and borrow the file at the site of use, rather than try to own
the RefMut. I have no idea why this convinces the borrow checker that
anything is different, but it does and I need to get this PR done and
I don't think comprimising on this internal abstraction is worth
fighting against
 2021-04-28 11:56:48 -07:00
Pat Hickey
a532d0f379 subscribe to mut fds 2021-04-26 16:42:02 -07:00
Pat Hickey
b307dce2ab add readable and writable futures to WasiFile trait 2021-04-26 14:43:16 -07:00
Pat Hickey
564e43d1b3 WasiDir: make all operations async 2021-04-14 15:22:25 -07:00
Pat Hickey
00e58567d9 WasiFile: all operations are now async 
only fn as_any(&self) -> &dyn Any doesnt get to be async.
 2021-04-14 15:17:31 -07:00
Pat Hickey
025a1ecff4 wasi-common: snapshots 0 and 1 traits are all async now 2021-04-14 15:05:38 -07:00
Pat Hickey
68daec7e7d wasi-common: WasiSched is an async trait now; poll_oneoff and sched_yield are async methods 2021-04-13 17:51:18 -07:00
Pat Hickey
1d663bfd71 delete straggler InDataField 2021-03-24 11:19:12 -07:00
Pat Hickey
e6c7e00a52 wiggle-using crates: delete GuestErrorConversion 2021-03-24 10:39:06 -07:00
Pat Hickey
81dfb9c458 wasi: make WasiSched::sleep fallible 
some systems do not support sleeping and may want to return EINVAL here.
 2021-03-23 10:20:03 -07:00
Dan Gohman
2880dab8f8 Add a sleep function to the WasiSched trait. 2021-03-22 12:50:16 -07:00
Dan Gohman
6b40724d18 Support "sleep" forms of poll_oneoff. 
Add support for `poll_oneoff` calls which just sleep on a relative
timeout. This fixes a bug handling code compiled with WASI libc's `sleep`
family of functions, which call `poll_oneoff` with a `CLOCK_REALTIME`
timer, which wasn't previously implemented.
 2021-03-22 12:50:16 -07:00
Dan Gohman
cba0144612 Use min_by instead of sort_by when we only want the minimum element. 
This is just a minor code simplification I happened to notice while
doing unrelated work on `poll_oneoff`.
 2021-03-22 11:08:28 -07:00
Christopher Serr
cc84c693a3 wasi-common: Timestamps should be in nanoseconds (#2717) 
Sleeping takes 1000x longer than it should because the timestamps are
interpreted as microseconds by accident.
 2021-03-10 09:09:34 -06:00
Pat Hickey
bcebdd43ef wiggle use sites: remove ctx argument 2021-03-04 18:16:37 -08:00
Pat Hickey
c9d8ed03c9 wasi-common: fix fdstat of dirfd 
the fdstat of a dirfd needs to include both the file and dir rights in
the inheriting field.

The wasi-libc path_open bases the base rights of child directories off
the inheriting rights of the parent, so if we only put file rights in
there, opening a child directory will not have any directory operations
permitted.

Fixes https://github.com/bytecodealliance/wasmtime/issues/2638
 2021-02-10 16:53:39 -08:00
Pat Hickey
e4ce04bab4 WasiCtx: default to empty/sink stdio files rather than throw 
the test harness now uses the empty stdin file. I tested manually that
the sink stdout & stderr files work, but theres no test in tree at the
moment
 2021-02-05 17:50:20 -08:00
Pat Hickey
e2b67aa9a3 simplify life for readdir implementors 2021-02-03 18:04:26 -08:00
Pat Hickey
d62b0a1f97 table keys can wrap around 2021-02-03 11:09:05 -08:00
Pat Hickey
857ef411b5 upstream fixes are pending for symlink_create & nofollow_errors on windows 2021-02-02 16:23:57 -08:00
Pat Hickey
dec0038ba0 add a readdir unit test to wasi-cap-std-sync 2021-02-01 19:40:24 -08:00
Pat Hickey
7daa7763e0 rustdoc the errors 2021-02-01 18:04:49 -08:00
Pat Hickey
0ef691b74e rustdocs!! 2021-02-01 18:01:47 -08:00
Pat Hickey
e511dac9ec rustdoc the table 2021-02-01 17:56:20 -08:00
Pat Hickey
7919b191ed fix tests and exports 2021-02-01 17:06:00 -08:00
Pat Hickey
f17bff5490 fill in Deterministic impl of RngCore 2021-02-01 16:25:38 -08:00
Pat Hickey
e9ad3611f6 get rid of outdated cfg_attr 2021-02-01 16:16:13 -08:00
Pat Hickey
5ee093e774 Merge remote-tracking branch 'origin/main' into pch/wasi_common_cap_std 2021-02-01 13:21:25 -08:00
Peter Huene
4632228b35 Fix fd_readdir to properly truncate directory entry names. 
Previously, `fd_readdir` was truncating directory entry names based on the
calculation of `min(name_len, buf_len - bufused)`, but `bufused` was not being
updated after writing in the `dirent` structure to the buffer.

This allowed `bufused` to be incremented beyond `buf_len` and returned as the
number of bytes written to the buffer, which is invalid.

This fix adjusts `bufused` when the buffer is written to for the `dirent` so
that name truncation happens as expected.

Fixes #2618.
 2021-02-01 11:41:12 -08:00
Pat Hickey
bad169dde3 port https://github.com/bytecodealliance/wasmtime/pull/2620 into rewrite 2021-02-01 11:10:26 -08:00
Pat Hickey
e940d31f95 add a noent / not_found errorkind 2021-01-30 13:36:41 -08:00
Pat Hickey
3d406ff50e Dir::open_file can just pass read/write as bools, centralizing FileCaps decoding 
this way the impls of File/Dir don't need to know about any caps!
 2021-01-29 21:04:34 -08:00
Pat Hickey
95ad13c82d wasi-common: break dep on system-interface by defining our own Advice enum 2021-01-29 17:03:08 -08:00
Pat Hickey
897b4fb8ab wasictxbuilder: assert that stdio is provided 2021-01-29 15:48:55 -08:00
Pat Hickey
d738a4a588 preview 0: copy bodies of read, write, and poll_oneoff from snapshot 1 2021-01-29 12:07:21 -08:00
Pat Hickey
ef2cb7b6b7 nearly have snapshot 0 implemented... 2021-01-28 17:00:31 -08:00
Pat Hickey
47fec44c10 move wasi-c2 into wasi-common 2021-01-28 15:15:50 -08:00
Pat Hickey
dd005208b6 delete wasi-common, yanix, winx 2021-01-28 15:13:45 -08:00
Pat Hickey
32f162aa78 fix windows flags 2021-01-12 09:51:09 -08:00
Pat Hickey
b53aecb367 Merge branch 'pch/wiggle_flags_bitflags' into pch/wasi_common_cap_std 2021-01-11 18:31:43 -08:00
Pat Hickey
75a9dc7fe2 wasi-common: wiggle flags are now bitflags! 
this mostly mechanical change is just getting rid of passing to
`contains` by reference.
 2021-01-11 18:27:55 -08:00
Pat Hickey
a900d0431d Merge remote-tracking branch 'origin/main' into pch/wasi_common_cap_std 2021-01-07 16:39:27 -08:00
Pat Hickey
539058b329 fix windows 2021-01-07 14:57:18 -08:00
Pat Hickey
13cd7a4a8e Merge branch 'pch/wiggle_trapping' into pch/wasi_common_cap_std 2021-01-07 14:10:59 -08:00