diff options
Diffstat (limited to 'library')
| -rw-r--r-- | library/alloc/benches/lib.rs | 3 | ||||
| -rw-r--r-- | library/alloc/tests/string.rs | 3 | ||||
| -rw-r--r-- | library/alloc/tests/vec.rs | 3 | ||||
| -rw-r--r-- | library/alloc/tests/vec_deque.rs | 3 | ||||
| m--------- | library/backtrace | 0 | ||||
| -rw-r--r-- | library/core/src/mem/mod.rs | 2 | ||||
| -rw-r--r-- | library/core/src/primitive_docs.rs | 92 | ||||
| -rw-r--r-- | library/core/tests/num/int_log.rs | 18 | ||||
| -rw-r--r-- | library/profiler_builtins/build.rs | 60 | ||||
| -rw-r--r-- | library/std/src/io/buffered/bufreader.rs | 2 | ||||
| -rw-r--r-- | library/std/src/sys/pal/wasi/thread.rs | 61 |
11 files changed, 119 insertions, 128 deletions
diff --git a/library/alloc/benches/lib.rs b/library/alloc/benches/lib.rs index 0561f49c967..ae9608ec7bd 100644 --- a/library/alloc/benches/lib.rs +++ b/library/alloc/benches/lib.rs @@ -1,6 +1,3 @@ -// Disabling on android for the time being -// See https://github.com/rust-lang/rust/issues/73535#event-3477699747 -#![cfg(not(target_os = "android"))] // Disabling in Miri as these would take too long. #![cfg(not(miri))] #![feature(btree_extract_if)] diff --git a/library/alloc/tests/string.rs b/library/alloc/tests/string.rs index c5bc4185a36..dc03c4860e8 100644 --- a/library/alloc/tests/string.rs +++ b/library/alloc/tests/string.rs @@ -723,7 +723,6 @@ fn test_reserve_exact() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_with_capacity() { let string = String::try_with_capacity(1000).unwrap(); assert_eq!(0, string.len()); @@ -734,7 +733,6 @@ fn test_try_with_capacity() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_reserve() { // These are the interesting cases: // * exactly isize::MAX should never trigger a CapacityOverflow (can be OOM) @@ -803,7 +801,6 @@ fn test_try_reserve() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_reserve_exact() { // This is exactly the same as test_try_reserve with the method changed. // See that test for comments. diff --git a/library/alloc/tests/vec.rs b/library/alloc/tests/vec.rs index fd2ddbf59e4..3722fb06a6a 100644 --- a/library/alloc/tests/vec.rs +++ b/library/alloc/tests/vec.rs @@ -1695,7 +1695,6 @@ fn test_reserve_exact() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_with_capacity() { let mut vec: Vec<u32> = Vec::try_with_capacity(5).unwrap(); assert_eq!(0, vec.len()); @@ -1707,7 +1706,6 @@ fn test_try_with_capacity() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_reserve() { // These are the interesting cases: // * exactly isize::MAX should never trigger a CapacityOverflow (can be OOM) @@ -1803,7 +1801,6 @@ fn test_try_reserve() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_reserve_exact() { // This is exactly the same as test_try_reserve with the method changed. // See that test for comments. diff --git a/library/alloc/tests/vec_deque.rs b/library/alloc/tests/vec_deque.rs index db972122fef..f32ba8d5aa4 100644 --- a/library/alloc/tests/vec_deque.rs +++ b/library/alloc/tests/vec_deque.rs @@ -1185,7 +1185,6 @@ fn test_reserve_exact_2() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_with_capacity() { let vec: VecDeque<u32> = VecDeque::try_with_capacity(5).unwrap(); assert_eq!(0, vec.len()); @@ -1196,7 +1195,6 @@ fn test_try_with_capacity() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_reserve() { // These are the interesting cases: // * exactly isize::MAX should never trigger a CapacityOverflow (can be OOM) @@ -1292,7 +1290,6 @@ fn test_try_reserve() { #[test] #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM -#[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc fn test_try_reserve_exact() { // This is exactly the same as test_try_reserve with the method changed. // See that test for comments. diff --git a/library/backtrace b/library/backtrace -Subproject 72265bea210891ae47bbe6d4f17b493ef060661 +Subproject 230570f2dac80a601f5c0b30da00cc9480bd35e diff --git a/library/core/src/mem/mod.rs b/library/core/src/mem/mod.rs index e602b497d17..fed484ae3cd 100644 --- a/library/core/src/mem/mod.rs +++ b/library/core/src/mem/mod.rs @@ -612,7 +612,7 @@ pub const fn needs_drop<T: ?Sized>() -> bool { /// /// There is no guarantee that an all-zero byte-pattern represents a valid value /// of some type `T`. For example, the all-zero byte-pattern is not a valid value -/// for reference types (`&T`, `&mut T`) and functions pointers. Using `zeroed` +/// for reference types (`&T`, `&mut T`) and function pointers. Using `zeroed` /// on such types causes immediate [undefined behavior][ub] because [the Rust /// compiler assumes][inv] that there always is a valid value in a variable it /// considers initialized. diff --git a/library/core/src/primitive_docs.rs b/library/core/src/primitive_docs.rs index fe6ed7e0cf3..a7037b2a119 100644 --- a/library/core/src/primitive_docs.rs +++ b/library/core/src/primitive_docs.rs @@ -1127,7 +1127,7 @@ impl<T> (T,) {} #[rustc_doc_primitive = "f16"] #[doc(alias = "half")] -/// A 16-bit floating point type (specifically, the "binary16" type defined in IEEE 754-2008). +/// A 16-bit floating-point type (specifically, the "binary16" type defined in IEEE 754-2008). /// /// This type is very similar to [`prim@f32`] but has decreased precision because it uses half as many /// bits. Please see [the documentation for `f32`](prim@f32) or [Wikipedia on half-precision @@ -1147,11 +1147,11 @@ mod prim_f16 {} #[rustc_doc_primitive = "f32"] #[doc(alias = "single")] -/// A 32-bit floating point type (specifically, the "binary32" type defined in IEEE 754-2008). +/// A 32-bit floating-point type (specifically, the "binary32" type defined in IEEE 754-2008). /// /// This type can represent a wide range of decimal numbers, like `3.5`, `27`, /// `-113.75`, `0.0078125`, `34359738368`, `0`, `-1`. So unlike integer types -/// (such as `i32`), floating point types can represent non-integer numbers, +/// (such as `i32`), floating-point types can represent non-integer numbers, /// too. /// /// However, being able to represent this wide range of numbers comes at the @@ -1165,8 +1165,8 @@ mod prim_f16 {} /// /// Additionally, `f32` can represent some special values: /// -/// - −0.0: IEEE 754 floating point numbers have a bit that indicates their sign, so −0.0 is a -/// possible value. For comparison −0.0 = +0.0, but floating point operations can carry +/// - −0.0: IEEE 754 floating-point numbers have a bit that indicates their sign, so −0.0 is a +/// possible value. For comparison −0.0 = +0.0, but floating-point operations can carry /// the sign bit through arithmetic operations. This means −0.0 × +0.0 produces −0.0 and /// a negative number rounded to a value smaller than a float can represent also produces −0.0. /// - [∞](#associatedconstant.INFINITY) and @@ -1211,7 +1211,7 @@ mod prim_f16 {} /// both arguments were negative, then it is -0.0. Subtraction `a - b` is /// regarded as a sum `a + (-b)`. /// -/// For more information on floating point numbers, see [Wikipedia][wikipedia]. +/// For more information on floating-point numbers, see [Wikipedia][wikipedia]. /// /// *[See also the `std::f32::consts` module](crate::f32::consts).* /// @@ -1219,39 +1219,43 @@ mod prim_f16 {} /// /// # NaN bit patterns /// -/// This section defines the possible NaN bit patterns returned by non-"bitwise" floating point -/// operations. The bitwise operations are unary `-`, `abs`, `copysign`; those are guaranteed to -/// exactly preserve the bit pattern of their input except for possibly changing the sign bit. +/// This section defines the possible NaN bit patterns returned by floating-point operations. /// -/// A floating-point NaN value consists of: -/// - a sign bit -/// - a quiet/signaling bit +/// The bit pattern of a floating-point NaN value is defined by: +/// - a sign bit. +/// - a quiet/signaling bit. Rust assumes that the quiet/signaling bit being set to `1` indicates a +/// quiet NaN (QNaN), and a value of `0` indicates a signaling NaN (SNaN). In the following we +/// will hence just call it the "quiet bit". /// - a payload, which makes up the rest of the significand (i.e., the mantissa) except for the -/// quiet/signaling bit. -/// -/// Rust assumes that the quiet/signaling bit being set to `1` indicates a quiet NaN (QNaN), and a -/// value of `0` indicates a signaling NaN (SNaN). In the following we will hence just call it the -/// "quiet bit". -/// -/// The following rules apply when a NaN value is returned: the result has a non-deterministic sign. -/// The quiet bit and payload are non-deterministically chosen from the following set of options: -/// -/// - **Preferred NaN**: The quiet bit is set and the payload is all-zero. -/// - **Quieting NaN propagation**: The quiet bit is set and the payload is copied from any input -/// operand that is a NaN. If the inputs and outputs do not have the same payload size (i.e., for -/// `as` casts), then -/// - If the output is smaller than the input, low-order bits of the payload get dropped. -/// - If the output is larger than the input, the payload gets filled up with 0s in the low-order -/// bits. -/// - **Unchanged NaN propagation**: The quiet bit and payload are copied from any input operand -/// that is a NaN. If the inputs and outputs do not have the same size (i.e., for `as` casts), the -/// same rules as for "quieting NaN propagation" apply, with one caveat: if the output is smaller -/// than the input, droppig the low-order bits may result in a payload of 0; a payload of 0 is not -/// possible with a signaling NaN (the all-0 significand encodes an infinity) so unchanged NaN -/// propagation cannot occur with some inputs. -/// - **Target-specific NaN**: The quiet bit is set and the payload is picked from a target-specific -/// set of "extra" possible NaN payloads. The set can depend on the input operand values. -/// See the table below for the concrete NaNs this set contains on various targets. +/// quiet bit. +/// +/// The rules for NaN values differ between *arithmetic* and *non-arithmetic* (or "bitwise") +/// operations. The non-arithmetic operations are unary `-`, `abs`, `copysign`, `signum`, +/// `{to,from}_bits`, `{to,from}_{be,le,ne}_bytes` and `is_sign_{positive,negative}`. These +/// operations are guaranteed to exactly preserve the bit pattern of their input except for possibly +/// changing the sign bit. +/// +/// The following rules apply when a NaN value is returned from an arithmetic operation: +/// - The result has a non-deterministic sign. +/// - The quiet bit and payload are non-deterministically chosen from +/// the following set of options: +/// +/// - **Preferred NaN**: The quiet bit is set and the payload is all-zero. +/// - **Quieting NaN propagation**: The quiet bit is set and the payload is copied from any input +/// operand that is a NaN. If the inputs and outputs do not have the same payload size (i.e., for +/// `as` casts), then +/// - If the output is smaller than the input, low-order bits of the payload get dropped. +/// - If the output is larger than the input, the payload gets filled up with 0s in the low-order +/// bits. +/// - **Unchanged NaN propagation**: The quiet bit and payload are copied from any input operand +/// that is a NaN. If the inputs and outputs do not have the same size (i.e., for `as` casts), the +/// same rules as for "quieting NaN propagation" apply, with one caveat: if the output is smaller +/// than the input, droppig the low-order bits may result in a payload of 0; a payload of 0 is not +/// possible with a signaling NaN (the all-0 significand encodes an infinity) so unchanged NaN +/// propagation cannot occur with some inputs. +/// - **Target-specific NaN**: The quiet bit is set and the payload is picked from a target-specific +/// set of "extra" possible NaN payloads. The set can depend on the input operand values. +/// See the table below for the concrete NaNs this set contains on various targets. /// /// In particular, if all input NaNs are quiet (or if there are no input NaNs), then the output NaN /// is definitely quiet. Signaling NaN outputs can only occur if they are provided as an input @@ -1259,7 +1263,7 @@ mod prim_f16 {} /// does not have any "extra" NaN payloads, then the output NaN is guaranteed to be preferred. /// /// The non-deterministic choice happens when the operation is executed; i.e., the result of a -/// NaN-producing floating point operation is a stable bit pattern (looking at these bits multiple +/// NaN-producing floating-point operation is a stable bit pattern (looking at these bits multiple /// times will yield consistent results), but running the same operation twice with the same inputs /// can produce different results. /// @@ -1273,10 +1277,10 @@ mod prim_f16 {} /// (e.g. `min`, `minimum`, `max`, `maximum`); other aspects of their semantics and which IEEE 754 /// operation they correspond to are documented with the respective functions. /// -/// When a floating-point operation is executed in `const` context, the same rules apply: no -/// guarantee is made about which of the NaN bit patterns described above will be returned. The -/// result does not have to match what happens when executing the same code at runtime, and the -/// result can vary depending on factors such as compiler version and flags. +/// When an arithmetic floating-point operation is executed in `const` context, the same rules +/// apply: no guarantee is made about which of the NaN bit patterns described above will be +/// returned. The result does not have to match what happens when executing the same code at +/// runtime, and the result can vary depending on factors such as compiler version and flags. /// /// ### Target-specific "extra" NaN values // FIXME: Is there a better place to put this? @@ -1294,7 +1298,7 @@ mod prim_f32 {} #[rustc_doc_primitive = "f64"] #[doc(alias = "double")] -/// A 64-bit floating point type (specifically, the "binary64" type defined in IEEE 754-2008). +/// A 64-bit floating-point type (specifically, the "binary64" type defined in IEEE 754-2008). /// /// This type is very similar to [`prim@f32`], but has increased precision by using twice as many /// bits. Please see [the documentation for `f32`](prim@f32) or [Wikipedia on double-precision @@ -1308,7 +1312,7 @@ mod prim_f64 {} #[rustc_doc_primitive = "f128"] #[doc(alias = "quad")] -/// A 128-bit floating point type (specifically, the "binary128" type defined in IEEE 754-2008). +/// A 128-bit floating-point type (specifically, the "binary128" type defined in IEEE 754-2008). /// /// This type is very similar to [`prim@f32`] and [`prim@f64`], but has increased precision by using twice /// as many bits as `f64`. Please see [the documentation for `f32`](prim@f32) or [Wikipedia on diff --git a/library/core/tests/num/int_log.rs b/library/core/tests/num/int_log.rs index 2320a7acc35..60902752dab 100644 --- a/library/core/tests/num/int_log.rs +++ b/library/core/tests/num/int_log.rs @@ -1,7 +1,4 @@ -//! This tests the `Integer::{ilog,log2,log10}` methods. These tests are in a -//! separate file because there's both a large number of them, and not all tests -//! can be run on Android. This is because in Android `ilog2` uses an imprecise -//! approximation:https://github.com/rust-lang/rust/blob/4825e12fc9c79954aa0fe18f5521efa6c19c7539/src/libstd/sys/unix/android.rs#L27-L53 +//! Tests for the `Integer::{ilog,log2,log10}` methods. #[test] fn checked_ilog() { @@ -48,6 +45,10 @@ fn checked_ilog2() { assert_eq!(0i8.checked_ilog2(), None); assert_eq!(0i16.checked_ilog2(), None); + assert_eq!(8192u16.checked_ilog2(), Some((8192f32).log2() as u32)); + assert_eq!(32768u16.checked_ilog2(), Some((32768f32).log2() as u32)); + assert_eq!(8192i16.checked_ilog2(), Some((8192f32).log2() as u32)); + for i in 1..=u8::MAX { assert_eq!(i.checked_ilog2(), Some((i as f32).log2() as u32), "checking {i}"); } @@ -77,15 +78,6 @@ fn checked_ilog2() { } } -// Validate cases that fail on Android's imprecise float ilog2 implementation. -#[test] -#[cfg(not(target_os = "android"))] -fn checked_ilog2_not_android() { - assert_eq!(8192u16.checked_ilog2(), Some((8192f32).log2() as u32)); - assert_eq!(32768u16.checked_ilog2(), Some((32768f32).log2() as u32)); - assert_eq!(8192i16.checked_ilog2(), Some((8192f32).log2() as u32)); -} - #[test] fn checked_ilog10() { assert_eq!(0u8.checked_ilog10(), None); diff --git a/library/profiler_builtins/build.rs b/library/profiler_builtins/build.rs index c1e0e5c1c89..dd85239fa8c 100644 --- a/library/profiler_builtins/build.rs +++ b/library/profiler_builtins/build.rs @@ -1,14 +1,15 @@ //! Compiles the profiler part of the `compiler-rt` library. //! -//! See the build.rs for libcompiler_builtins crate for details. +//! Loosely based on: +//! - LLVM's `compiler-rt/lib/profile/CMakeLists.txt` +//! - <https://github.com/rust-lang/compiler-builtins/blob/master/build.rs>. use std::env; use std::path::PathBuf; fn main() { - println!("cargo:rerun-if-env-changed=LLVM_PROFILER_RT_LIB"); - if let Ok(rt) = env::var("LLVM_PROFILER_RT_LIB") { - println!("cargo:rustc-link-lib=static:+verbatim={rt}"); + if let Ok(rt) = tracked_env_var("LLVM_PROFILER_RT_LIB") { + println!("cargo::rustc-link-lib=static:+verbatim={rt}"); return; } @@ -16,13 +17,13 @@ fn main() { let target_env = env::var("CARGO_CFG_TARGET_ENV").expect("CARGO_CFG_TARGET_ENV was not set"); let cfg = &mut cc::Build::new(); - // FIXME: `rerun-if-changed` directives are not currently emitted and the build script - // will not rerun on changes in these source files or headers included into them. - let mut profile_sources = vec![ + let profile_sources = vec![ + // tidy-alphabetical-start "GCDAProfiling.c", "InstrProfiling.c", "InstrProfilingBuffer.c", "InstrProfilingFile.c", + "InstrProfilingInternal.c", "InstrProfilingMerge.c", "InstrProfilingMergeFile.c", "InstrProfilingNameVar.c", @@ -37,15 +38,13 @@ fn main() { "InstrProfilingValue.c", "InstrProfilingVersionVar.c", "InstrProfilingWriter.c", - // These files were added in LLVM 11. - "InstrProfilingInternal.c", - "InstrProfilingBiasVar.c", + "WindowsMMap.c", + // tidy-alphabetical-end ]; if target_env == "msvc" { // Don't pull in extra libraries on MSVC cfg.flag("/Zl"); - profile_sources.push("WindowsMMap.c"); cfg.define("strdup", Some("_strdup")); cfg.define("open", Some("_open")); cfg.define("fdopen", Some("_fdopen")); @@ -60,8 +59,6 @@ fn main() { if target_os != "windows" { cfg.flag("-fvisibility=hidden"); cfg.define("COMPILER_RT_HAS_UNAME", Some("1")); - } else { - profile_sources.push("WindowsMMap.c"); } } @@ -80,26 +77,33 @@ fn main() { } // Get the LLVM `compiler-rt` directory from bootstrap. - println!("cargo:rerun-if-env-changed=RUST_COMPILER_RT_FOR_PROFILER"); - let root = PathBuf::from(env::var("RUST_COMPILER_RT_FOR_PROFILER").unwrap_or_else(|_| { - let path = "../../src/llvm-project/compiler-rt"; - println!("RUST_COMPILER_RT_FOR_PROFILER was not set; falling back to {path:?}"); - path.to_owned() - })); + let root = PathBuf::from(tracked_env_var_or_fallback( + "RUST_COMPILER_RT_FOR_PROFILER", + "../../src/llvm-project/compiler-rt", + )); let src_root = root.join("lib").join("profile"); assert!(src_root.exists(), "profiler runtime source directory not found: {src_root:?}"); - let mut n_sources_found = 0u32; - for src in profile_sources { - let path = src_root.join(src); - if path.exists() { - cfg.file(path); - n_sources_found += 1; - } + println!("cargo::rerun-if-changed={}", src_root.display()); + for file in profile_sources { + cfg.file(src_root.join(file)); } - assert!(n_sources_found > 0, "couldn't find any profiler runtime source files in {src_root:?}"); - cfg.include(root.join("include")); + let include = root.join("include"); + println!("cargo::rerun-if-changed={}", include.display()); + cfg.include(include); + cfg.warnings(false); cfg.compile("profiler-rt"); } + +fn tracked_env_var(key: &str) -> Result<String, env::VarError> { + println!("cargo::rerun-if-env-changed={key}"); + env::var(key) +} +fn tracked_env_var_or_fallback(key: &str, fallback: &str) -> String { + tracked_env_var(key).unwrap_or_else(|_| { + println!("cargo::warning={key} was not set; falling back to {fallback:?}"); + fallback.to_owned() + }) +} diff --git a/library/std/src/io/buffered/bufreader.rs b/library/std/src/io/buffered/bufreader.rs index 0b12e5777c8..cf226bd28d0 100644 --- a/library/std/src/io/buffered/bufreader.rs +++ b/library/std/src/io/buffered/bufreader.rs @@ -94,7 +94,9 @@ impl<R: Read> BufReader<R> { pub fn with_capacity(capacity: usize, inner: R) -> BufReader<R> { BufReader { inner, buf: Buffer::with_capacity(capacity) } } +} +impl<R: Read + ?Sized> BufReader<R> { /// Attempt to look ahead `n` bytes. /// /// `n` must be less than `capacity`. diff --git a/library/std/src/sys/pal/wasi/thread.rs b/library/std/src/sys/pal/wasi/thread.rs index 31c9cbd4699..4b83870fdea 100644 --- a/library/std/src/sys/pal/wasi/thread.rs +++ b/library/std/src/sys/pal/wasi/thread.rs @@ -136,36 +136,37 @@ impl Thread { } pub fn sleep(dur: Duration) { - let nanos = dur.as_nanos(); - assert!(nanos <= u64::MAX as u128); - - const USERDATA: wasi::Userdata = 0x0123_45678; - - let clock = wasi::SubscriptionClock { - id: wasi::CLOCKID_MONOTONIC, - timeout: nanos as u64, - precision: 0, - flags: 0, - }; - - let in_ = wasi::Subscription { - userdata: USERDATA, - u: wasi::SubscriptionU { tag: 0, u: wasi::SubscriptionUU { clock } }, - }; - unsafe { - let mut event: wasi::Event = mem::zeroed(); - let res = wasi::poll_oneoff(&in_, &mut event, 1); - match (res, event) { - ( - Ok(1), - wasi::Event { - userdata: USERDATA, - error: wasi::ERRNO_SUCCESS, - type_: wasi::EVENTTYPE_CLOCK, - .. - }, - ) => {} - _ => panic!("thread::sleep(): unexpected result of poll_oneoff"), + let mut nanos = dur.as_nanos(); + while nanos > 0 { + const USERDATA: wasi::Userdata = 0x0123_45678; + + let clock = wasi::SubscriptionClock { + id: wasi::CLOCKID_MONOTONIC, + timeout: u64::try_from(nanos).unwrap_or(u64::MAX), + precision: 0, + flags: 0, + }; + nanos -= u128::from(clock.timeout); + + let in_ = wasi::Subscription { + userdata: USERDATA, + u: wasi::SubscriptionU { tag: 0, u: wasi::SubscriptionUU { clock } }, + }; + unsafe { + let mut event: wasi::Event = mem::zeroed(); + let res = wasi::poll_oneoff(&in_, &mut event, 1); + match (res, event) { + ( + Ok(1), + wasi::Event { + userdata: USERDATA, + error: wasi::ERRNO_SUCCESS, + type_: wasi::EVENTTYPE_CLOCK, + .. + }, + ) => {} + _ => panic!("thread::sleep(): unexpected result of poll_oneoff"), + } } } } |