pthread wait
The real reason you should put pthread_cond_wait in a while loop is not because of spurious wakeup. Even if your condition variable did not have spurious wakeup, you would still need the loop to catch a common type of error. Why? Consider what can happen , Stop using condition variable as signal mechanism, as they are not. You always need an actual variable which holds the data. When you need to use the data, your first check it's state, and if the state is not what you want it to be, you wait for cond
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 pthread wait 相關參考資料
c - How can I wait for anyall pthreads to complete? - Stack Overflow
Pass -DUSE_PTHREAD_EXIT to the compiler to see the process wait for all threads to finish. Compile without that macro defined to see the process stop threads in their tracks. #include <stdio.h>... https://stackoverflow.com c - Pthread and wait conditions - Stack Overflow
The real reason you should put pthread_cond_wait in a while loop is not because of spurious wakeup. Even if your condition variable did not have spurious wakeup, you would still need the loop to catch... https://stackoverflow.com c++ - How to detect pthread condition singal before wait? - Stack ...
Stop using condition variable as signal mechanism, as they are not. You always need an actual variable which holds the data. When you need to use the data, your first check it's state, and if the... https://stackoverflow.com pthreads wait and signal doubts linux - Stack Overflow
pthread_cond_signal() will always wake at least one thread that is currently waiting on that condition variable in pthread_cond_wait() . If the same thread or a different thread then calls pthread_co... https://stackoverflow.com pthread_cond_timedwait()--Timed Wait for Condition - IBM
pthread_cond_timedwait()--Timed Wait for Condition. Syntax: #include <pthread.h> #include <time.h> int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex, const struct tim... https://www.ibm.com pthread_cond_wait - The Open Group Library
#include <pthread.h> int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex); int pthread_cond_timedwait(pthread_cond_t *cond, ... When using condition variables there is always a bo... http://pubs.opengroup.org pthread_cond_wait() — Wait on a condition variable - IBM
Format. #define _OPEN_THREADS #include <pthread.h> int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);. SUSV3: #define _UNIX03_THREADS #include <pthread.h> int pthread_con... https://www.ibm.com pthread_join() — Wait for a thread to end - IBM
Format. #define _OPEN_THREADS #include <pthread.h> int pthread_join(pthread_t thread, void **status); copy to clipboard. SUSV3: #define _UNIX03_THREADS #include <pthread.h> int pthread_joi... https://www.ibm.com pthread_mutex_lock() — Wait for a lock on a mutex object - IBM
Format. #define _OPEN_THREADS #include <pthread.h> int pthread_mutex_lock(pthread_mutex_t *mutex); copy to clipboard. SUSV3: #define _UNIX03_THREADS #include <pthread.h> int pthread_mutex_... https://www.ibm.com 轉貼: pthread 解讀(三) @ 血落閣:: 隨意窩Xuite日誌
Posix線程編程指南(3) 內容： 一． 互斥鎖二． 條件變量三． 信號燈四． 異步信號五． 其他同步方式關於作者相關內容： (1) 線程創建與取消(2) 線程私有數據線程同步楊沙洲([email protected]) 2001 年10 月這是一個關於Posix線程編程的專欄。作者在闡明概念的基礎上，將向您詳細講述Posix線程庫API。本文是第三篇將向您講述線程同步 ... http://blog.xuite.net |