| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/sunhe/incubator-teaclave/third_party/rust-sgx-sdk/sgx_libc/src/linux/pthread/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../../normalize.css"><link rel="stylesheet" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../dark.css" disabled><link rel="stylesheet" href="../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../storage.js"></script><script defer src="../../../../source-script.js"></script><script defer src="../../../../source-files.js"></script><script defer src="../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../../sgx_libc/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../../sgx_libc/index.html"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License.. |
| |
| </span><span class="kw">use </span><span class="kw">crate</span>::linux::<span class="kw-2">*</span>; |
| <span class="kw">use </span>core::mem; |
| <span class="kw">use </span>core::ptr; |
| <span class="kw">use </span>sgx_sync::capi::<span class="kw-2">*</span>; |
| <span class="kw">use </span>sgx_trts::capi::<span class="kw-2">*</span>; |
| <span class="kw">use </span>sgx_trts::thread::tls::{Key, Tls}; |
| <span class="kw">use </span>sgx_trts::thread::{<span class="self">self</span>, Native, Thread}; |
| <span class="kw">use </span>sgx_trts::trts::is_within_enclave; |
| <span class="kw">use </span>sgx_types::error::SgxStatus; |
| |
| <span class="kw">pub type </span>pthread_t = <span class="kw-2">*const </span>c_void; |
| <span class="kw">pub type </span>pthread_key_t = size_t; |
| |
| <span class="kw">pub type </span>pthread_mutex_t = sgx_thread_mutex_t; |
| <span class="kw">pub type </span>pthread_cond_t = sgx_thread_cond_t; |
| <span class="kw">pub type </span>pthread_rwlock_t = sgx_thread_rwlock_t; |
| <span class="kw">pub type </span>pthread_mutexattr_t = sgx_thread_mutexattr_t; |
| <span class="kw">pub type </span>pthread_condattr_t = sgx_thread_condattr_t; |
| <span class="kw">pub type </span>pthread_rwlockattr_t = sgx_thread_rwlockattr_t; |
| <span class="kw">pub type </span>pthread_attr_t = <span class="kw-2">*mut </span>pthread_attr; |
| |
| <span class="attribute">#[repr(C)] |
| </span><span class="kw">pub struct </span>pthread_once_t { |
| <span class="kw">pub </span>state: c_int, |
| <span class="kw">pub </span>mutex: pthread_mutex_t, |
| } |
| <span class="macro">s! </span>{ |
| <span class="kw">pub struct </span>pthread_attr { |
| <span class="kw">pub </span>reserved: c_char, |
| } |
| } |
| |
| <span class="macro">macro_rules! </span>check_param { |
| (<span class="macro-nonterminal">$ptr</span>:expr, <span class="macro-nonterminal">$ty</span>:ty) => { |
| <span class="kw">if </span><span class="macro-nonterminal">$ptr</span>.is_null() || !is_within_enclave(<span class="macro-nonterminal">$ptr </span><span class="kw">as </span><span class="kw-2">*const </span>u8, mem::size_of::<<span class="macro-nonterminal">$ty</span>>()) { |
| <span class="kw">return </span>EINVAL; |
| } |
| }; |
| } |
| |
| <span class="kw">pub const </span>PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = SGX_THREAD_NONRECURSIVE_MUTEX_INITIALIZER; |
| <span class="kw">pub const </span>PTHREAD_COND_INITIALIZER: pthread_cond_t = SGX_THREAD_COND_INITIALIZER; |
| <span class="kw">pub const </span>PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = SGX_THREAD_LOCK_INITIALIZER; |
| |
| <span class="kw">const </span>PTHREAD_NEEDS_INIT: c_int = <span class="number">0</span>; |
| <span class="kw">const </span>PTHREAD_DONE_INIT: c_int = <span class="number">1</span>; |
| <span class="kw">pub const </span>PTHREAD_ONCE_INIT: pthread_once_t = pthread_once_t { |
| state: PTHREAD_NEEDS_INIT, |
| mutex: PTHREAD_MUTEX_INITIALIZER, |
| }; |
| |
| <span class="attribute">#[allow(clippy::redundant_closure)] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_create( |
| thread: <span class="kw-2">*mut </span>pthread_t, |
| _attr: <span class="kw-2">*const </span>pthread_attr_t, |
| start_routine: <span class="kw">extern </span><span class="string">"C" </span><span class="kw">fn</span>(<span class="kw-2">*mut </span>c_void) -> <span class="kw-2">*mut </span>c_void, |
| arg: <span class="kw-2">*mut </span>c_void, |
| ) -> c_int { |
| <span class="macro">check_param!</span>(thread, pthread_t); |
| |
| <span class="kw">if </span>!is_within_enclave(start_routine <span class="kw">as </span><span class="kw-2">*const </span>u8, <span class="number">0</span>) { |
| <span class="kw">return </span>EINVAL; |
| } |
| |
| <span class="kw">let </span>f = <span class="kw">move </span>|arg| start_routine(arg); |
| <span class="kw">match </span>Thread::new(f, arg) { |
| <span class="prelude-val">Ok</span>(t) => { |
| <span class="kw-2">*</span>thread = Thread::into_raw(t) <span class="kw">as </span>pthread_t; |
| <span class="number">0 |
| </span>} |
| <span class="prelude-val">Err</span>(e) => <span class="kw">match </span>e { |
| SgxStatus::InvalidParameter => EINVAL, |
| SgxStatus::OutOfTcs => EAGAIN, |
| <span class="kw">_ </span>=> EINVAL, |
| }, |
| } |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_join(thread: pthread_t, retval: <span class="kw-2">*mut *mut </span>c_void) -> c_int { |
| <span class="macro">check_param!</span>(thread, Native); |
| |
| <span class="kw">let </span>t = Thread::from_raw(thread <span class="kw">as </span><span class="kw-2">*mut </span>Native); |
| <span class="kw">match </span>t.join() { |
| <span class="prelude-val">Ok</span>(val) => { |
| <span class="kw-2">*</span>retval = val; |
| <span class="number">0 |
| </span>} |
| <span class="prelude-val">Err</span>(e) => <span class="kw">match </span>e { |
| SgxStatus::InvalidParameter => EDEADLK, |
| SgxStatus::InvalidState => EDEADLK, |
| <span class="kw">_ </span>=> EINVAL, |
| }, |
| } |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_self() -> pthread_t { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(t) = thread::current() { |
| Thread::into_raw(t) <span class="kw">as </span>pthread_t |
| } <span class="kw">else </span>{ |
| sgx_thread_self() |
| } |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_equal(t1: pthread_t, t2: pthread_t) -> c_int { |
| i32::from(t1 == t2) |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_key_create( |
| key: <span class="kw-2">*mut </span>pthread_key_t, |
| dtor: <span class="prelude-ty">Option</span><<span class="kw">unsafe extern </span><span class="string">"C" </span><span class="kw">fn</span>(<span class="kw-2">*mut </span>c_void)>, |
| ) -> c_int { |
| <span class="macro">check_param!</span>(key, pthread_key_t); |
| |
| <span class="kw">match </span>Tls::create(dtor.map(|f| mem::transmute(f))) { |
| <span class="prelude-val">Ok</span>(tls_key) => { |
| <span class="kw-2">*</span>key = tls_key.as_usize(); |
| <span class="number">0 |
| </span>} |
| <span class="prelude-val">Err</span>(e) => <span class="kw">match </span>e { |
| SgxStatus::InvalidParameter => EINVAL, |
| SgxStatus::Unexpected => EAGAIN, |
| <span class="kw">_ </span>=> EINVAL, |
| }, |
| } |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_key_delete(key: pthread_key_t) -> c_int { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(tls_key) = Key::from_usize(key) { |
| Tls::destroy(tls_key); |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| EINVAL |
| } |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_getspecific(key: pthread_key_t) -> <span class="kw-2">*mut </span>c_void { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(tls_key) = Key::from_usize(key) { |
| Tls::get(tls_key).unwrap_or(<span class="prelude-val">None</span>).unwrap_or(ptr::null_mut()) <span class="kw">as </span><span class="kw-2">*mut </span>c_void |
| } <span class="kw">else </span>{ |
| ptr::null_mut() |
| } |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_setspecific(key: pthread_key_t, value: <span class="kw-2">*const </span>c_void) -> c_int { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(tls_key) = Key::from_usize(key) { |
| <span class="kw">if </span>Tls::set(tls_key, value <span class="kw">as </span><span class="kw-2">*mut </span>u8).is_ok() { |
| <span class="number">0 |
| </span>} <span class="kw">else </span>{ |
| EINVAL |
| } |
| } <span class="kw">else </span>{ |
| EINVAL |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_mutex_init( |
| mutex: <span class="kw-2">*mut </span>pthread_mutex_t, |
| _attr: <span class="kw-2">*const </span>pthread_mutexattr_t, |
| ) -> c_int { |
| sgx_thread_mutex_init(mutex, _attr) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_mutex_lock(mutex: <span class="kw-2">*mut </span>pthread_mutex_t) -> c_int { |
| sgx_thread_mutex_lock(mutex) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_mutex_trylock(mutex: <span class="kw-2">*mut </span>pthread_mutex_t) -> c_int { |
| sgx_thread_mutex_trylock(mutex) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_mutex_unlock(mutex: <span class="kw-2">*mut </span>pthread_mutex_t) -> c_int { |
| sgx_thread_mutex_unlock(mutex) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_mutex_destroy(mutex: <span class="kw-2">*mut </span>pthread_mutex_t) -> c_int { |
| sgx_thread_mutex_destroy(mutex) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_cond_init( |
| cond: <span class="kw-2">*mut </span>pthread_cond_t, |
| _attr: <span class="kw-2">*const </span>pthread_condattr_t, |
| ) -> c_int { |
| sgx_thread_cond_init(cond, _attr) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_cond_wait( |
| cond: <span class="kw-2">*mut </span>pthread_cond_t, |
| mutex: <span class="kw-2">*mut </span>pthread_mutex_t, |
| ) -> c_int { |
| sgx_thread_cond_wait(cond, mutex) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_cond_timedwait( |
| cond: <span class="kw-2">*mut </span>pthread_cond_t, |
| mutex: <span class="kw-2">*mut </span>pthread_mutex_t, |
| timeout: <span class="kw-2">*const </span>timespec, |
| ) -> c_int { |
| sgx_thread_cond_timedwait(cond, mutex, timeout) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_cond_signal(cond: <span class="kw-2">*mut </span>pthread_cond_t) -> c_int { |
| sgx_thread_cond_signal(cond) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_cond_broadcast(cond: <span class="kw-2">*mut </span>pthread_cond_t) -> c_int { |
| sgx_thread_cond_broadcast(cond) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_cond_destroy(cond: <span class="kw-2">*mut </span>pthread_cond_t) -> c_int { |
| sgx_thread_cond_destroy(cond) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_rwlock_init( |
| rwlock: <span class="kw-2">*mut </span>pthread_rwlock_t, |
| _attr: <span class="kw-2">*const </span>pthread_rwlockattr_t, |
| ) -> c_int { |
| sgx_thread_rwlock_init(rwlock, _attr) |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_rwlock_rdlock(rwlock: <span class="kw-2">*mut </span>pthread_rwlock_t) -> c_int { |
| sgx_thread_rwlock_rdlock(rwlock) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_rwlock_tryrdlock(rwlock: <span class="kw-2">*mut </span>pthread_rwlock_t) -> c_int { |
| sgx_thread_rwlock_tryrdlock(rwlock) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_rwlock_wrlock(rwlock: <span class="kw-2">*mut </span>pthread_rwlock_t) -> c_int { |
| sgx_thread_rwlock_wrlock(rwlock) |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_rwlock_trywrlock(rwlock: <span class="kw-2">*mut </span>pthread_rwlock_t) -> c_int { |
| sgx_thread_rwlock_trywrlock(rwlock) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_rwlock_unlock(rwlock: <span class="kw-2">*mut </span>pthread_rwlock_t) -> c_int { |
| sgx_thread_rwlock_unlock(rwlock) |
| } |
| |
| <span class="attribute">#[inline] |
| #[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_rwlock_destroy(rwlock: <span class="kw-2">*mut </span>pthread_rwlock_t) -> c_int { |
| sgx_thread_rwlock_destroy(rwlock) |
| } |
| |
| <span class="attribute">#[no_mangle] |
| </span><span class="kw">pub unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>pthread_once( |
| once_control: <span class="kw-2">*mut </span>pthread_once_t, |
| init_routine: <span class="kw">extern </span><span class="string">"C" </span><span class="kw">fn</span>(), |
| ) -> c_int { |
| <span class="macro">check_param!</span>(once_control, pthread_once_t); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>once_control = <span class="kw-2">&mut *</span>once_control; |
| pthread_mutex_lock(<span class="kw-2">&mut </span>once_control.mutex); |
| <span class="kw">if </span>once_control.state == PTHREAD_NEEDS_INIT { |
| init_routine(); |
| once_control.state = PTHREAD_DONE_INIT; |
| } |
| pthread_mutex_unlock(<span class="kw-2">&mut </span>once_control.mutex); |
| <span class="number">0 |
| </span>} |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="sgx_libc" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
