Difference between revisions of "Example pthread demo"

From wiki.emacinc.com
Jump to: navigation, search
(Summary)
Line 1: Line 1:
 
{{todo|InProgress(12.11.13-12:03->JG+)|Jgreene|project=oe 4,oe 5,jg,md,InProgress}}
 
{{todo|InProgress(12.11.13-12:03->JG+)|Jgreene|project=oe 4,oe 5,jg,md,InProgress}}
This is a guide to the pthread C example project included in the EMAC OE SDK.
+
This is a guide to the <code>pthread_demo</code> C example project included in the EMAC OE SDK.
  
 
This is a simple pthreads example application. A single thread is created to generate random data that is read by a specified number of reader threads.
 
This is a simple pthreads example application. A single thread is created to generate random data that is read by a specified number of reader threads.
Line 28: Line 28:
 
===Hardware Requirements===
 
===Hardware Requirements===
  
The <code>pthread demo</code> has no special hardware requirements. It should run just fine on any system for which the <code>pthread demo</code> project code can be successfully compiled.
+
The <code>pthread_demo</code> C example project has no special hardware requirements. It should run just fine on any system for which the project files can be successfully compiled.
 
 
The <code>pthread demo</code> C example project has no special hardware requirements. It should run just fine on any system for which the project files can be successfully compiled.
 
  
 
====Using <code>pthread_demo</code>====
 
====Using <code>pthread_demo</code>====
Line 52: Line 50:
 
==Summary==
 
==Summary==
  
The <code>pthread demo</code> C example project demonstrates how to use pthreads. For another example of pthread usage see [[Example pthread hello]].
+
The <code>pthread_demo</code> C example project demonstrates how to use pthreads. For another example of pthread usage see [[Example pthread hello]].

Revision as of 13:04, 11 December 2013

TODO: {{#todo:InProgress(12.11.13-12:03->JG+)|Jgreene|oe 4,oe 5,jg,md,InProgress}}

This is a guide to the pthread_demo C example project included in the EMAC OE SDK.

This is a simple pthreads example application. A single thread is created to generate random data that is read by a specified number of reader threads.

The term pthread refers to POSIX Threads, a POSIX standard for threads.

Opening, Building and Uploading the Project Files

1. Open the C/C++ editing perspective.

stub

2. Open the fbench project files.

stub

3. Build the fbench project.

stub

4. Upload the fbench and ffbench executables to the target system.

stub

Usage and Behavior

Hardware Requirements

The pthread_demo C example project has no special hardware requirements. It should run just fine on any system for which the project files can be successfully compiled.

Using pthread_demo

./pthread_demo n

where n is the number of threads

Usage Example

root@PPCE7:/tmp# ./pthread_demo 3
generating new random data
generating new random data
    reader: count = 0, data = 693451072
generating new random data
    reader: count = 1, data = 1195545710
generating new random data
    reader: count = 2, data = 462104121

Summary

The pthread_demo C example project demonstrates how to use pthreads. For another example of pthread usage see Example pthread hello.