Memory management

Protected adress space:

Neutrino offers complete memory protection for user applications and for operating system components (device drivers, filesystems, etc.).

Moreover, QNX reaches the complex POSIX process model in a protected environment using a MMU (Memory Management Unit) mechanism. This protection is useful both for development and for the runtime system.

In conclusion, QNX provides a microkernel architecture with full memory protection between each operating system components such as filesystem, TCP/IP, Qnet and so on. Therefore each process is a address space separated and protected against the rest of components.

Dynamic memory allocation:

QNX provides dynamically request memory allocation using the malloc(), realloc() or calloc() functions, and provides the free() function to release memory allocation.