Namespaces

Variants
Actions

Please note that as of October 24, 2014, the Nokia Developer Wiki will no longer be accepting user contributions, including new entries, edits and comments, as we begin transitioning to our new home, in the Windows Phone Development Wiki. We plan to move over the majority of the existing entries over the next few weeks. Thanks for all your past and future contributions.

Named Pipes Example

From Wiki
Jump to: navigation, search
Article Metadata
Article
Created: spark55 (01 Oct 2007)
Last edited: hamishwillee (03 Feb 2012)

Named Pipes Description

The following code shows the usage of named pipes(follows the steps given in the above link):

#include <unistd.h>
#include <string.h>
#include <sys/stat.h>
#include <stdio.h>
#include <fcntl.h>
#include <pthread.h>
 
const char* fifopath = "C:\\mkfifo.file";
unsigned int threadid;
 
// thread entry point
void* FifoWriterThread(void* arg)
{
const char* buf = "somejunk";
TInt fd = open (fifopath, O_WRONLY);
if(fd > 0 )
{
write(fd, buf, 9);
close(fd);
}
return 0;
}
 
void CreateThreadL()
{
pthread_create(&threadid,(pthread_attr_t *)NULL,FifoWriterThread, NULL);
}
 
void OpenForRead()
{
int err = mkfifo (fifopath, 0666);
if(err != 0)
{
// probably file already exists, delete the file
unlink(fifopath);
// try once more..
err = mkfifo (fifopath, 0666);
if(err != 0)
{
return;
}
}
CreateThreadL();
char buf[128];
TInt fd = open (fifopath, O_RDONLY);
if ( fd ( 0 )
{
return ;
}
err = read (fd, buf, 128);
close(fd);
unlink(fifopath);
}
 
int main()
{
OpenForRead();
return 0;
}
This page was last modified on 3 February 2012, at 06:10.
137 page views in the last 30 days.

Was this page helpful?

Your feedback about this content is important. Let us know what you think.

 

Thank you!

We appreciate your feedback.

×