10 More Discussions You Might Find Interesting
1. Programming
Hello,
I am writing a threaded program using the pthread library in linux. I have a master thread that needs to control worker threads, in particular, it has to be able to ensure that none of the worker threads will be running for a specified amount of time, even if the worker threads are... (7 Replies)
Discussion started by: andres625
7 Replies
2. Programming
Situation:
i have multiple pthread_create calls like this:
pthread_create(...., ThreadFunc1,.....);
pthread_create(...., ThreadFunc2,.....);
.
.
which i am using to create multiple threads.All the "ThreadFunc<i>" functions are actually calling same function "Receive" of a class using same... (3 Replies)
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3. Programming
I have this code...
#include <stdio.h>
#include <iostream>
#include <pthread.h>
static void* cliente(void *datos);
int main()
{
pthread_attr_t tattr;
int ret;
size_t size = PTHREAD_STACK_MIN + 0x0100;
ret = pthread_attr_init(&tattr);
ret =... (8 Replies)
Discussion started by: JEscola
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4. Programming
hi
i have a code:
I found that after exiting from child thread memory isn't freed. I commented everything which is "some actions" here, so thread's function contains only two lines. But it doesn't help.
What do I do wrong?
Thanks a lot (3 Replies)
Discussion started by: sery0ga
3 Replies
5. HP-UX
Hi!
I'm linking my hpux code using -lpthread (gcc), yet it references libpthread_tr.1,
the debug version of the pthread lib. How do I force it to use pthreads?
Thanks, :) (3 Replies)
Discussion started by: zackz
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6. Programming
Hi All,
I ve written a small program to get started off with pthreads. I somehow feel the program doesnt meet the purpose. Please find the code and the output below. Please find my question at the bottom.
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
void *PrintThread1(void... (4 Replies)
Discussion started by: nhrraj
4 Replies
7. Programming
I have created a thread program, it is attached. My problem is that I need to loop this program multiple times, and basically reset everything including the threads created previously. I try to loop the program, the first run is fine, as always, but the second run of the program, the initialize... (0 Replies)
Discussion started by: justgotthis
0 Replies
8. Programming
howcome that pthtreads spawn 2 extra processes?
I'm kind of new with pthreads but fork() did not act like this.
Anyone who can give me a technical explanation of what happends with mother / daughter processes?
Best regards Esaia. (2 Replies)
Discussion started by: Esaia
2 Replies
9. Programming
Does any one no of some good web site which will explain about how to program using pthreads in a UNIX enviroment? (6 Replies)
Discussion started by: fishman2001
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10. UNIX for Advanced & Expert Users
Can anyone explain me how to use pthread_key_create() , pthread_setspecific(), pthread_getspecific() and pthread_key_delete () routines in pthreads.
Kindly state by an example. (3 Replies)
Discussion started by: S.P.Prasad
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PTHREAD_ATTR_SETSCHEDPOLICY(3) Linux Programmer's Manual PTHREAD_ATTR_SETSCHEDPOLICY(3)
NAME
pthread_attr_setschedpolicy, pthread_attr_getschedpolicy - set/get scheduling policy attribute in thread attributes object
SYNOPSIS
#include <pthread.h>
int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy);
int pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy);
Compile and link with -pthread.
DESCRIPTION
The pthread_attr_setschedpolicy() function sets the scheduling policy attribute of the thread attributes object referred to by attr to the
value specified in policy. This attribute determines the scheduling policy of a thread created using the thread attributes object attr.
The supported values for policy are SCHED_FIFO, SCHED_RR, and SCHED_OTHER, with the semantics described in sched(7).
The pthread_attr_getschedpolicy() returns the scheduling policy attribute of the thread attributes object attr in the buffer pointed to by
policy.
In order for the policy setting made by pthread_attr_setschedpolicy() to have effect when calling pthread_create(3), the caller must use
pthread_attr_setinheritsched(3) to set the inherit-scheduler attribute of the attributes object attr to PTHREAD_EXPLICIT_SCHED.
RETURN VALUE
On success, these functions return 0; on error, they return a nonzero error number.
ERRORS
pthread_attr_setschedpolicy() can fail with the following error:
EINVAL Invalid value in policy.
POSIX.1 also documents an optional ENOTSUP error ("attempt was made to set the attribute to an unsupported value") for
pthread_attr_setschedpolicy().
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+-------------------------------+---------------+---------+
|Interface | Attribute | Value |
+-------------------------------+---------------+---------+
|pthread_attr_setschedpolicy(), | Thread safety | MT-Safe |
|pthread_attr_getschedpolicy() | | |
+-------------------------------+---------------+---------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
EXAMPLE
See pthread_setschedparam(3).
SEE ALSO
pthread_attr_init(3), pthread_attr_setinheritsched(3), pthread_attr_setschedparam(3), pthread_create(3), pthread_setschedparam(3),
pthread_setschedprio(3), pthreads(7), sched(7)
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 PTHREAD_ATTR_SETSCHEDPOLICY(3)