Questions tagged [pthreads]
The pthreads tag has no summary.
9 questions
0
votes
1
answer
245
views
An adaptor layer for Pthread, C11, and C++11 threads compatibility
As my next spare-time project, I'm considering writing a suite of compatibility header and associated library, that eases the transition from Single Unix Specification v4 to v5 and C11/C17 to C2X. C++ ...
- 374
1
vote
2
answers
448
views
How to handle errors of pthreads fundamental lock und unlock functions?
I am writing a little C library for the Raspberry Pi for controlling 433MHz transmitters/receivers. While receiving data the whole application would block, so I decided to put this code into a ...
- 21
-2
votes
1
answer
392
views
How should functions that keep state across multiple invocations be made safe?
In Computer Systems: a Programmer's Perspective,
12.7.1 Thread Safety
When we program with threads, we must be careful to write functions
that have a property called thread safety. A function is said ...
- 5,555
0
votes
0
answers
93
views
What is the difference between pthread scope vs. policy?
I'm reading OS Concepts for my undergrad OS class and came across this topic: Pthread scheduling (System and Process)
Then I kept reading and came across POSIX Real-Time Scheduling that has two ...
- 101
2
votes
0
answers
2k
views
multithreading - waiting on a condition without using locks (c++11)
i've been wondering about it for a while now but never found any answers. is it possible to use something like a condition variable without a lock?
I have a vector of objects, and a thread pool, and ...
2
votes
3
answers
601
views
C Thread Architecture
I'm trying my hand at multi-thread C programming and decided to start with a simple ncurses program to move a character across the terminal screen and change direction based on user input (think ...
- 167
0
votes
2
answers
667
views
pattern to unlock thread and get variable in fast unlock
I have a thread that goes in a loop doing something like this
void thread()
{
pthread_mutex_lock(mutex);
for ( ; ; )
{
/** code **/
{
pthread_mutex_unlock(mutex);
/** ...
- 1,232
1
vote
4
answers
2k
views
Best algorithm to multi-thread this application?
I define an algorithm to be best if it minimizes the total run time over commodity hardware (e.g. normal desktop and server PCs).
I have sets A and B. I also have function f that works like f(a, b, n)...
- 73
0
votes
0
answers
1k
views
using pthread_cond_broadcast with no mutex or waiting thread?
Assuming some pthread_cond_t condvar; properly initialized with pthread_cond_init am I allowed to pthread_cond_broadcast it without any mutex locked and thread blocked with pthread_cond_timedwait on ...
