| /external/rust/crates/tokio/tests/ |
| D | sync_rwlock.rs | 10 use tokio::sync::{Barrier, RwLock};
16 let rwlock = RwLock::new(42); in into_inner() localVariable
17 assert_eq!(rwlock.into_inner(), 42); in into_inner()
23 let rwlock = RwLock::new(100); in read_shared() localVariable
25 let mut t1 = spawn(rwlock.read()); in read_shared()
27 let mut t2 = spawn(rwlock.read()); in read_shared()
34 let rwlock = RwLock::new(100); in write_shared_pending() localVariable
35 let mut t1 = spawn(rwlock.read()); in write_shared_pending()
38 let mut t2 = spawn(rwlock.write()); in write_shared_pending()
45 let rwlock = RwLock::new(100); in read_exclusive_pending() localVariable
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| /external/mesa3d/src/util/ |
| D | rwlock.h | 44 SRWLOCK rwlock; member
46 pthread_rwlock_t rwlock;
50 static inline int u_rwlock_init(struct u_rwlock *rwlock) in u_rwlock_init() argument
53 InitializeSRWLock(&rwlock->rwlock); in u_rwlock_init()
56 return pthread_rwlock_init(&rwlock->rwlock, NULL); in u_rwlock_init()
60 static inline int u_rwlock_destroy(struct u_rwlock *rwlock) in u_rwlock_destroy() argument
65 return pthread_rwlock_destroy(&rwlock->rwlock); in u_rwlock_destroy()
69 static inline int u_rwlock_rdlock(struct u_rwlock *rwlock) in u_rwlock_rdlock() argument
72 AcquireSRWLockShared(&rwlock->rwlock); in u_rwlock_rdlock()
75 return pthread_rwlock_rdlock(&rwlock->rwlock); in u_rwlock_rdlock()
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| /external/rust/crates/tokio/src/sync/ |
| D | rwlock.rs | 37 /// become available to yield. An `RwLock` will allow any number of readers to
46 /// `std::sync::RwLock`, where the priority policy is dependent on the
58 /// use tokio::sync::RwLock;
62 /// let lock = RwLock::new(5);
82 /// [`RwLock`]: struct@RwLock
88 pub struct RwLock<T: ?Sized> { struct
108 check_send::<RwLock<u32>>(); in bounds() argument
109 check_sync::<RwLock<u32>>(); in bounds()
110 check_unpin::<RwLock<u32>>(); in bounds()
136 let rwlock = Arc::new(RwLock::new(0)); in bounds() localVariable
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| /external/rust/crates/lock_api/src/ |
| D | rwlock.rs | 22 /// Types implementing this trait can be used by `RwLock` to form a safe and
23 /// fully-functioning `RwLock` type.
27 /// Implementations of this trait must ensure that the `RwLock` is actually
32 /// Initial value for an unlocked `RwLock`.
68 /// Checks if this `RwLock` is currently locked in any way.
172 /// to recursively lock a `RwLock`. However using this method can cause
311 pub struct RwLock<R, T: ?Sized> { struct
318 impl<R, T> Serialize for RwLock<R, T> implementation
332 impl<'de, R, T> Deserialize<'de> for RwLock<R, T> implementation
341 Deserialize::deserialize(deserializer).map(RwLock::new) in deserialize()
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| /external/rust/crates/spin/src/ |
| D | rw_lock.rs | 13 /// This lock behaves in a similar manner to its namesake `std::sync::RwLock` but uses
47 /// let lock = spin::RwLock::new(5);
64 pub struct RwLock<T: ?Sized> { struct
78 inner: &'a RwLock<T>, argument
86 inner: &'a RwLock<T>,
99 inner: &'a RwLock<T>,
103 // Same unsafe impls as `std::sync::RwLock`
104 unsafe impl<T: ?Sized + Send> Send for RwLock<T> {} implementation
105 unsafe impl<T: ?Sized + Send + Sync> Sync for RwLock<T> {} implementation
107 impl<T> RwLock<T> { implementation
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| /external/llvm-project/llvm/lib/Support/ |
| D | RWMutex.cpp | 44 pthread_rwlock_t* rwlock = in RWMutexImpl() local
49 bzero(rwlock, sizeof(pthread_rwlock_t)); in RWMutexImpl()
52 // Initialize the rwlock in RWMutexImpl()
53 int errorcode = pthread_rwlock_init(rwlock, nullptr); in RWMutexImpl()
58 data_ = rwlock; in RWMutexImpl()
64 pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_); in ~RWMutexImpl() local
65 assert(rwlock != nullptr); in ~RWMutexImpl()
66 pthread_rwlock_destroy(rwlock); in ~RWMutexImpl()
67 free(rwlock); in ~RWMutexImpl()
73 pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_); in lock_shared() local
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| /external/swiftshader/third_party/llvm-10.0/llvm/lib/Support/ |
| D | RWMutex.cpp | 44 pthread_rwlock_t* rwlock = in RWMutexImpl() local
49 bzero(rwlock, sizeof(pthread_rwlock_t)); in RWMutexImpl()
52 // Initialize the rwlock in RWMutexImpl()
53 int errorcode = pthread_rwlock_init(rwlock, nullptr); in RWMutexImpl()
58 data_ = rwlock; in RWMutexImpl()
64 pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_); in ~RWMutexImpl() local
65 assert(rwlock != nullptr); in ~RWMutexImpl()
66 pthread_rwlock_destroy(rwlock); in ~RWMutexImpl()
67 free(rwlock); in ~RWMutexImpl()
73 pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_); in lock_shared() local
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| /external/llvm/lib/Support/ |
| D | RWMutex.cpp | 50 pthread_rwlock_t* rwlock = in RWMutexImpl() local
55 bzero(rwlock, sizeof(pthread_rwlock_t)); in RWMutexImpl()
58 // Initialize the rwlock in RWMutexImpl()
59 int errorcode = pthread_rwlock_init(rwlock, nullptr); in RWMutexImpl()
64 data_ = rwlock; in RWMutexImpl()
70 pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_); in ~RWMutexImpl() local
71 assert(rwlock != nullptr); in ~RWMutexImpl()
72 pthread_rwlock_destroy(rwlock); in ~RWMutexImpl()
73 free(rwlock); in ~RWMutexImpl()
79 pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_); in reader_acquire() local
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| /external/rust/crates/parking_lot/src/ |
| D | rwlock.rs | 34 /// other threads waiting to acquire the rwlock. While this improves throughput
36 /// a rwlock it has just released, this can starve other threads.
38 /// This rwlock uses [eventual fairness](https://trac.webkit.org/changeset/203350)
41 /// which will force the lock to go to the next thread waiting for the rwlock.
51 /// # Differences from the standard library `RwLock`
57 /// `RwLock` due to platform limitations.
63 /// - Supports eventual fairness so that the rwlock is fair on average.
64 /// - Optionally allows making the rwlock fair by calling
70 /// use parking_lot::RwLock;
72 /// let lock = RwLock::new(5);
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| /external/ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_unlock/ |
| D | 1-1.c | 7 * Test that pthread_rwlock_unlock(pthread_rwlock_t *rwlock)
10 * read-write lock object referenced by rwlock
18 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
19 * 2. Main thread read lock 'rwlock'
20 * 3. Create a child thread, the thread read lock 'rwlock', should not block
21 * 4. Child thread unlock 'rwlock', while the main thread still hold the read lock.
22 * 5. Child thread read lock 'rwlock' again, should succeed, then unlock again
23 * 6. Child thread write lock 'rwlock', should block
24 * 7. Main thread unlock the read lock, the 'rwlock' is in unlocked state
33 static pthread_rwlock_t rwlock; variable
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| D | 4-2.c | 7 * Test that pthread_rwlock_unlock(pthread_rwlock_t *rwlock)
10 * [EINVAL] rwlock doesn't refer to an initialized read-write lock
11 * [EPERM] the current thread doesn't hold the lock on the rwlock
17 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
18 * 2. Main thread read lock 'rwlock'
19 * 3. Create a child thread, the thread should try to unlock the 'rwlock'
31 static pthread_rwlock_t rwlock; variable
48 rc = pthread_rwlock_unlock(&rwlock); in fn_unlk()
60 printf("Unlocking rwlock in different thread is undefined on Linux\n"); in main()
64 if (pthread_rwlock_init(&rwlock, NULL) != 0) { in main()
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| D | 2-1.c | 7 * Test that pthread_rwlock_unlock(pthread_rwlock_t *rwlock)
10 * read-write lock object referenced by rwlock
18 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
19 * 2. Main thread write lock 'rwlock'
20 * 3. Create a child thread, the thread write lock 'rwlock', should block
21 * 4. Main thread unlock the write lock, the 'rwlock' is in unlocked state
30 static pthread_rwlock_t rwlock; variable
50 if (pthread_rwlock_wrlock(&rwlock) != 0) { in fn_wr()
56 rc = pthread_rwlock_unlock(&rwlock); in fn_wr()
74 if (pthread_rwlock_init(&rwlock, NULL) != 0) { in main()
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| /external/ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_rdlock/ |
| D | 5-1.c | 7 * Test that pthread_rwlock_rdlock(pthread_rwlock_t *rwlock)
9 * A thread may hold multiple concurrent read locks on 'rwlock' and the application shall
13 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
14 * 2. Main read locks 'rwlock' 10 times
15 * 3. Main unlocks 'rwlock' 10 times.
29 static pthread_rwlock_t rwlock; in main() local
32 if (pthread_rwlock_init(&rwlock, NULL) != 0) { in main()
38 if (pthread_rwlock_rdlock(&rwlock) != 0) { in main()
40 ("Test FAILED: main cannot get read-lock rwlock number: %d\n", in main()
47 if (pthread_rwlock_unlock(&rwlock) != 0) { in main()
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| D | 1-1.c | 7 * Test that pthread_rwlock_rdlock(pthread_rwlock_t *rwlock)
10 * read-write lock referenced by rwlock. The calling thread acquires
18 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
19 * 2. Main thread read lock 'rwlock'
20 * 3. Create a child thread. The thread read lock 'rwlock', should not block. Then unlock it.
21 * 4. Main thread unlock 'rwlock'
22 * 5. Main thread write lock 'rwlock'
23 * 6. Create child thread to read lock 'rwlock', should block
24 * 7. Main thread unlock 'rwlock'
32 static pthread_rwlock_t rwlock; variable
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| /external/ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_tryrdlock/ |
| D | 1-1.c | 7 * Test that pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock)
19 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
20 * 2. Main thread read lock 'rwlock'
21 …* 3. Create a child thread, the thread read lock 'rwlock' using pthread_rwlock_tryrdlock(), shoul…
22 * 4. Main thread unlock 'rwlock'
23 * 5. Main thread write lock 'rwlock'
24 …* 6. Create child thread to read lock 'rwlock' with pthread_rwlock_tryrdlock(), should not block …
25 * 7. Main thread unlock 'rwlock'
34 static pthread_rwlock_t rwlock; variable
53 rc = pthread_rwlock_tryrdlock(&rwlock); in fn_rd_1()
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| /external/ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_wrlock/ |
| D | 1-1.c | 7 * Test pthread_rwlock_wrlock(pthread_rwlock_t *rwlock)
10 * 'rwlock'. The calling thread acquires the write lock if no other thread
11 * (reader or writer) holds the read-write lock 'rwlock'. Otherwise, the thread
15 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
16 * 2. Main thread lock 'rwlock' for reading with pthread_rwlock_rdlock()
17 * 3. Create a child thread, the thread lock 'rwlock' for writing, shall block
18 * 4. Main thread unlock 'rwlock', child thread should get the write lock
19 * 5. Main thread lock 'rwlock' for writing
20 * 6. Create child thread to lock 'rwlock' for writing, should block
21 * 7. Main thread unlock 'rwlock'
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| D | 3-1.c | 7 * Test pthread_rwlock_wrlock(pthread_rwlock_t *rwlock)
10 * [EDEADLK] The current thread already owns the rwlock for writing or reading.
13 * 1. Create and initialize an rwlock
15 * 3. Perform a write lock _again_ with pthread_rwlock_wrlock without first unlocking rwlock()
29 static pthread_rwlock_t rwlock; in main() local
32 if (pthread_rwlock_init(&rwlock, NULL) != 0) { in main()
37 /* Attempt to write lock rwlock, it should return successfully */ in main()
40 if (pthread_rwlock_wrlock(&rwlock) != 0) { in main()
46 /* Now attempt to write lock again without first unlocking rwlock. It may return in main()
50 rc = pthread_rwlock_wrlock(&rwlock); in main()
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| /external/ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_trywrlock/ |
| D | 1-1.c | 7 * Test pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock)
10 * that the function shall fail if any thread currently holds rwlock(for reading and writing).
13 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
14 * 2. Main thread lock 'rwlock' for reading with pthread_rwlock_rdlock()
15 * 3. Create a child thread, the thread locks 'rwlock' for writing, using
17 * 4. Main thread unlocks 'rwlock'
18 * 5. Main thread locks 'rwlock' for writing, using pthread_rwlock_trywrlock(),
20 * 6. Create child thread to lock 'rwlock' for writing, with pthread_rwlock_trywrlock(),
22 * 7. Main thread unlock 'rwlock'
31 static pthread_rwlock_t rwlock; variable
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| /external/ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_timedrdlock/ |
| D | 3-1.c | 7 * Test that pthread_rwlock_timedrdlock(pthread_rwlock_t *rwlock)
10 * rwlock as in the pthread_rwlock_rdlock(). However, if the lock cannot be
15 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
16 * 2. Main thread lock 'rwlock' for reading with pthread_rwlock_rdlock()
17 * 3. Create a child thread, the thread lock 'rwlock' for reading,
18 * using pthread_rwlock_timedrdlock(), should get read lock. Thread unlocks 'rwlock'.
19 * 4. Main thread unlock 'rwlock'
20 * 5. Main thread lock 'rwlock' for writing
21 * 6. Create child thread to lock 'rwlock' for reading,
24 * 7. Main thread unlock 'rwlock'
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| D | 1-1.c | 7 * Test that pthread_rwlock_timedrdlock(pthread_rwlock_t *rwlock)
10 * rwlock as in the pthread_rwlock_rdlock(). However, if the lock cannot be
15 * 1. Initialize a pthread_rwlock_t object 'rwlock' with pthread_rwlock_init()
16 * 2. Main thread lock 'rwlock' for reading with pthread_rwlock_rdlock()
17 * 3. Create a child thread, the thread lock 'rwlock' for reading,
18 * using pthread_rwlock_timedrdlock(), should get read lock. Thread unlocks 'rwlock'.
19 * 4. Main thread unlock 'rwlock'
20 * 5. Main thread lock 'rwlock' for writing
21 * 6. Create child thread to lock 'rwlock' for reading,
24 * 7. Main thread unlock 'rwlock'
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| D | 5-1.c | 7 * Test that pthread_rwlock_timedrdlock(pthread_rwlock_t *rwlock)
15 * 2. Child thread lock 'rwlock' for reading with pthread_rwlock_timedrdlock(),
17 * 3. The child thread unlocks the 'rwlock' and exits.
19 * 4. The child thread lock 'rwlock' for reading, with pthread_rwlock_timedrdlock(),
45 pthread_rwlock_t rwlock; in fn_rd_1() local
47 if (pthread_rwlock_init(&rwlock, NULL) != 0) { in fn_rd_1()
59 rc = pthread_rwlock_timedrdlock(&rwlock, &abs_timeout); in fn_rd_1()
67 if (pthread_rwlock_unlock(&rwlock) != 0) { in fn_rd_1()
76 if (pthread_rwlock_destroy(&rwlock) != 0) { in fn_rd_1()
90 pthread_rwlock_t rwlock; in fn_rd_2() local
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| /external/rust/crates/tokio/src/sync/tests/ |
| D | loom_rwlock.rs | 1 use crate::sync::rwlock::*;
12 let rwlock = Arc::new(RwLock::<u32>::new(0)); in concurrent_write() localVariable
14 let rwclone = rwlock.clone(); in concurrent_write()
22 let rwclone = rwlock.clone(); in concurrent_write()
33 let guard = block_on(rwlock.read()); in concurrent_write()
43 let rwlock = Arc::new(RwLock::<u32>::new(0)); in concurrent_read_write() localVariable
45 let rwclone = rwlock.clone(); in concurrent_read_write()
53 let rwclone = rwlock.clone(); in concurrent_read_write()
61 let rwclone = rwlock.clone(); in concurrent_read_write()
71 let guard = block_on(rwlock.clone().read_owned()); in concurrent_read_write()
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| /external/libcups/cups/ |
| D | thread.c | 110 _cupsRWInit(_cups_rwlock_t *rwlock) /* I - Reader/writer lock */ in _cupsRWInit() argument
112 pthread_rwlock_init(rwlock, NULL); in _cupsRWInit()
121 _cupsRWLockRead(_cups_rwlock_t *rwlock) /* I - Reader/writer lock */ in _cupsRWLockRead() argument
123 pthread_rwlock_rdlock(rwlock); in _cupsRWLockRead()
132 _cupsRWLockWrite(_cups_rwlock_t *rwlock)/* I - Reader/writer lock */ in _cupsRWLockWrite() argument
134 pthread_rwlock_wrlock(rwlock); in _cupsRWLockWrite()
143 _cupsRWUnlock(_cups_rwlock_t *rwlock) /* I - Reader/writer lock */ in _cupsRWUnlock() argument
145 pthread_rwlock_unlock(rwlock); in _cupsRWUnlock()
297 _cupsRWInit(_cups_rwlock_t *rwlock) /* I - Reader/writer lock */ in _cupsRWInit() argument
299 _cupsMutexInit((_cups_mutex_t *)rwlock); in _cupsRWInit()
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| /external/ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_timedwrlock/ |
| D | 1-1.c | 7 * Test that pthread_rwlock_timedwrlock(pthread_rwlock_t *rwlock)
10 * read-write lock referenced by rwlock as in the pthread_rwlock_wrlock() function.
15 * 1. Initialize rwlock
18 * 4. Main thread locks 'rwlock' for reading with pthread_rwlock_rdlock()
19 * 5. Create a child thread, the thread time-locks 'rwlock' for writing,
22 * 6. Main thread unlocks 'rwlock'
23 * 7. Main thread locks 'rwlock' for writing.
24 * 8. Create child thread to lock 'rwlock' for writing, using pthread_rwlock_timedwrlock,
26 * 8. Main thread unlocks 'rwlock'
39 static pthread_rwlock_t rwlock; variable
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| /external/rust/crates/parking_lot/ |
| D | README.md | 13 This library provides implementations of `Mutex`, `RwLock`, `Condvar` and
21 contended from multiple threads. The numbers for `RwLock` vary depending on
23 the standard library `RwLock`, and even up to 50x faster in some cases.
31 and `RwLock` only require 1 word of storage space. On the other hand the
49 6. `Condvar`, `RwLock` and `Once` work on Windows XP, unlike the standard
51 7. `RwLock` takes advantage of hardware lock elision on processors that
53 8. `RwLock` uses a task-fair locking policy, which avoids reader and writer
60 11. `RwLock` supports atomically downgrading a write lock into a read lock.
61 12. `Mutex` and `RwLock` allow raw unlocking without a RAII guard object.
62 13. `Mutex<()>` and `RwLock<()>` allow raw locking without a RAII guard
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