Shared Memory Example (QNX Neutrino) - Qnx-neutrino-rtos Typing CST Test
Loading…
Shared Memory Example (QNX Neutrino) — Qnx-neutrino-rtos Code
Demonstrates use of shared memory between processes in QNX.
#include <stdio.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
int main() {
int fd = shm_open("/myshm", O_CREAT | O_RDWR, 0666);
ftruncate(fd, 1024);
char* ptr = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
sprintf(ptr, "Hello from shared memory");
printf("%s\n", ptr);
munmap(ptr, 1024);
shm_unlink("/myshm");
return 0;
}Qnx-neutrino-rtos Language Guide
QNX Neutrino RTOS is a real-time operating system designed for embedded systems that require high reliability, deterministic performance, and scalability, widely used in automotive, industrial, medical, and networking applications.
Primary Use Cases
- ▸Automotive infotainment and ADAS systems
- ▸Industrial automation and PLCs
- ▸Medical devices and imaging systems
- ▸Telecommunications and networking appliances
- ▸Aerospace and defense embedded platforms
Notable Features
- ▸Microkernel architecture for reliability and fault isolation
- ▸POSIX-compliant APIs and standards-based development
- ▸Supports real-time scheduling and priority-based task management
- ▸High availability with optional fault-tolerant modules
- ▸Small footprint suitable for resource-constrained devices
Origin & Creator
Originally developed by Quantum Software Systems in 1982; now maintained by BlackBerry Limited.
Industrial Note
Extensively used in automotive infotainment systems, autonomous driving platforms, industrial automation controllers, medical imaging devices, and aerospace embedded systems.