10 More Discussions You Might Find Interesting
1. Programming
Hi,
I wanted to know whether the POSIX message queues are statically allocated memory by the kernel based on the parameters specified in the open or as and when we send messages, memory are allocated?
Does the kernel reserve the specified memory for the message queue irrespective of whether... (1 Reply)
Discussion started by: sumtata
1 Replies
2. Programming
I want to create a program that creates 2 child process, and each of them creates 2 threads, and each thread prints its thread id. I0ve allread done that the outuput isn't the outuput i want.
When a run the following comand "$./a.out | sort -u | wc -l" I have the folowing output
2
$:
It should... (3 Replies)
Discussion started by: pharaoh
3 Replies
3. Programming
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
Discussion started by: kmehta
4 Replies
4. Programming
Hello,
I have created program that run threads one by one, maximum 100. Each thread will process one block of data, and once it`s finished, new thread is created with new block of data....etc
I have array of values to control status of each thread, like this:
array_thread_status=1... (11 Replies)
Discussion started by: orangem
11 Replies
5. Programming
Hi, i have this code... in order to test my problem...
#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 =... (8 Replies)
Discussion started by: JEscola
8 Replies
6. UNIX for Advanced & Expert Users
hi
I had to create a shared memory segment which allows the creation of 8 child processes each with 1024 bytes and contains a common buffer area of 2096bytes.
i was able to create the shared memory with shm_open() followed by ftruncate() and mmap() system calls.
but for the shared buffer, i... (3 Replies)
Discussion started by: pretty
3 Replies
7. Programming
Hi all!
I am implementing an http server in c++ using the posix thread, but i am having a memory leak and i cannot find the reason.
I have already commented out the section that initializes the threads and i found out, the problem is when i initialize/run the threads.
In the threads i have... (1 Reply)
Discussion started by: laurovalente
1 Replies
8. Programming
Hello,
i have 2 questions:
1. Can I get the current memory usage of a thread?
2. Can I use a member-function as (void*)(*)(void*) method to create a new thread with "pthread_create(...)"??
I would be happy about any suggestion.
Regards,
Rolf (2 Replies)
Discussion started by: rkasel
2 Replies
9. Programming
Is there anybody has documents about NPTL
I wanna study about it , but can't find the documents....
anyone help appreciate
:) :) :) (1 Reply)
Discussion started by: alan.zhao
1 Replies
10. Programming
hi all,
can anyone tell me some good site for the mutithreading tutorials, its application, and some code examples.
-sushil (2 Replies)
Discussion started by: shushilmore
2 Replies
