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Eliminate fakepthread dependency (#27)
* [WASM] Minimize dependences of pthread * [WASM] Built fakepthread as a part of swift project * [WASM] Always build WasiPthread as static * [WASM] Fix to emit libswiftWasiPthread.a in swift_static * [WASM] Remove unused header file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| //===--- MutexWin32.h - -----------------------------------------*- C++ -*-===// | ||
| // | ||
| // This source file is part of the Swift.org open source project | ||
| // | ||
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors | ||
| // Licensed under Apache License v2.0 with Runtime Library Exception | ||
| // | ||
| // See https://swift.org/LICENSE.txt for license information | ||
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // Mutex, ConditionVariable, Read/Write lock, and Scoped lock implementations | ||
| // using Windows Slim Reader/Writer Locks and Conditional Variables. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #ifndef SWIFT_RUNTIME_MUTEX_WASI_H | ||
| #define SWIFT_RUNTIME_MUTEX_WASI_H | ||
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| namespace swift { | ||
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| typedef void* ConditionHandle; | ||
| typedef void* MutexHandle; | ||
| typedef void* ReadWriteLockHandle; | ||
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| #define SWIFT_CONDITION_SUPPORTS_CONSTEXPR 1 | ||
| #define SWIFT_MUTEX_SUPPORTS_CONSTEXPR 1 | ||
| #define SWIFT_READWRITELOCK_SUPPORTS_CONSTEXPR 1 | ||
|
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| struct ConditionPlatformHelper { | ||
| static constexpr ConditionHandle staticInit() { | ||
| return nullptr; | ||
| }; | ||
| static void init(ConditionHandle &condition) {} | ||
| static void destroy(ConditionHandle &condition) {} | ||
| static void notifyOne(ConditionHandle &condition) {} | ||
| static void notifyAll(ConditionHandle &condition) {} | ||
| static void wait(ConditionHandle &condition, MutexHandle &mutex); | ||
| }; | ||
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| struct MutexPlatformHelper { | ||
| static constexpr MutexHandle staticInit() { return nullptr; } | ||
| static void init(MutexHandle &mutex, bool checked = false) {} | ||
| static void destroy(MutexHandle &mutex) {} | ||
| static void lock(MutexHandle &mutex) {} | ||
| static void unlock(MutexHandle &mutex) {} | ||
| static bool try_lock(MutexHandle &mutex) { return true; } | ||
| static void unsafeLock(MutexHandle &mutex) {} | ||
| static void unsafeUnlock(MutexHandle &mutex) {} | ||
| }; | ||
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| struct ReadWriteLockPlatformHelper { | ||
| static constexpr ReadWriteLockHandle staticInit() { return nullptr; } | ||
| static void init(ReadWriteLockHandle &rwlock) {} | ||
| static void destroy(ReadWriteLockHandle &rwlock) {} | ||
| static void readLock(ReadWriteLockHandle &rwlock) {} | ||
| static bool try_readLock(ReadWriteLockHandle &rwlock) { return true; } | ||
| static void readUnlock(ReadWriteLockHandle &rwlock) {} | ||
| static void writeLock(ReadWriteLockHandle &rwlock) {} | ||
| static bool try_writeLock(ReadWriteLockHandle &rwlock) { return true; } | ||
| static void writeUnlock(ReadWriteLockHandle &rwlock) {} | ||
| }; | ||
| } | ||
|
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||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| add_swift_target_library(swiftWasiPthread STATIC IS_STDLIB | ||
| Pthread.cpp | ||
| INSTALL_IN_COMPONENT stdlib) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| // SPDX-License-Identifier: 0BSD | ||
| // prototypes taken from opengroup | ||
| #include <stdlib.h> | ||
| #include <stdio.h> | ||
| #include <pthread.h> | ||
| #include <semaphore.h> | ||
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| #define STUB() do {fprintf(stderr, "FakePthread: unsupported %s\n", __func__);abort();}while(0) | ||
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| // mutexes: just no-ops | ||
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| int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_mutex_destroy(pthread_mutex_t *mutex) { | ||
| return 0; | ||
| } | ||
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| int pthread_mutexattr_init(pthread_mutexattr_t *attr) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_mutexattr_destroy(pthread_mutexattr_t *attr) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *type) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_mutex_lock(pthread_mutex_t *mutex) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_mutex_trylock(pthread_mutex_t *mutex) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_mutex_unlock(pthread_mutex_t *mutex) { | ||
| return 0; | ||
| } | ||
|
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| // pthread_cond: STUB | ||
|
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| int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_cond_destroy(pthread_cond_t *cond) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex) { | ||
| STUB(); | ||
| } | ||
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| int pthread_cond_timedwait(pthread_cond_t *cond, | ||
| pthread_mutex_t *mutex, const struct timespec *abstime) { | ||
| STUB(); | ||
| } | ||
|
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| int pthread_cond_broadcast(pthread_cond_t *cond) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_cond_signal(pthread_cond_t *cond) { | ||
| return 0; | ||
| } | ||
|
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| // tls | ||
|
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| int pthread_key_create(pthread_key_t *key, void (*destructor)(void*)) { | ||
| STUB(); | ||
| } | ||
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| void *pthread_getspecific(pthread_key_t key) { | ||
| STUB(); | ||
| } | ||
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| int pthread_setspecific(pthread_key_t key, const void *value) { | ||
| STUB(); | ||
| } | ||
|
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| // threads | ||
|
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| pthread_t pthread_self() { | ||
| return (pthread_t)1234; | ||
| } | ||
|
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| #undef pthread_equal | ||
|
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| int pthread_equal(pthread_t t1, pthread_t t2) { | ||
| return t1 == t2; | ||
| } | ||
|
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| int pthread_join(pthread_t thread, void **value_ptr) { | ||
| STUB(); | ||
| } | ||
|
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| int pthread_detach(pthread_t thread) { | ||
| STUB(); | ||
| } | ||
|
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| int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg) { | ||
| return 0; | ||
| } | ||
|
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| // once | ||
|
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| int pthread_once(pthread_once_t *once_control, void (*init_routine)(void)) { | ||
| STUB(); | ||
| } | ||
|
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| // rwlock | ||
|
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| int pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_rwlock_destroy(pthread_rwlock_t *rwlock) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_rwlock_rdlock(pthread_rwlock_t *rwlock) { | ||
| return 0; | ||
| } | ||
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| int pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock) { | ||
| return 0; | ||
| } | ||
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| int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock) { | ||
| return 0; | ||
| } | ||
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| int pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock) { | ||
| return 0; | ||
| } | ||
|
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| int pthread_rwlock_unlock(pthread_rwlock_t *rwlock) { | ||
| return 0; | ||
| } | ||
|
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| // named semaphores | ||
|
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| sem_t *sem_open(const char *name, int oflag, ...) { | ||
| STUB(); | ||
| } |
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