About This Guide

Meet the New OS

    Architecture

    Support for x86, MIPS, PowerPC

    SMP

    Portability

    Installing Neutrino on a QNX 4 box

     Moving files from QNX 4 to Neutrino

      Typical development cycle

       From the QNX 4 machine:

       From the Neutrino machine:

Development Environment

    Compiler & tools

    Header files

    Libraries

     Static and dynamic libraries

    Useful manifests

    Debugging

    Buildfiles and images

Programming Issues

    Scheduling

     Priority range

    Process issues

     Process creation

     Process flags

    I/O Managers vs Resource Managers

    Messages

     Neutrino's connection-oriented philosophy

     Channel IDs vs process IDs

     How should the receiver be written?

     How does the sender find the receiver?

     Receiving messages in a resource manager

     _PPF_SIGCATCH

     Message priority

     Priority floating

     Receiving from across the network

    Events

    Proxies vs pulses

     Example of pulses with a resource manager

    Signal services

     Signals and threads

    Shared memory

    Semaphores

     Named semaphores

    POSIX Message Queues

    Timers

     Timeouts

    Interrupts

    Hardware I/O

     Port I/O

     Memory-mapped I/O

     Memory for DMA

     PCI functions

    Getting system information

    Getting process information

    The term_ Functions

Migration Methodology

    A suggested approach

    Get to know Neutrino

    Install the OS

    Move your environment

    Move your utilities

    Plan!

    Moving a program

     Analysis

     Architectural issues

     Converting header files

     Converting pathnames

     Converting functions, etc.

The mig4nto Utility

    mig4nto

      Syntax:

      Options:

      Description

      Examples:

      Exit status:

The Migration Library

    The migration process manager (mig4nto-procmgr)

      Syntax:

      Options:

      Description

     Migration functions that require mig4nto-procmgr

    The migration library functions

      block_read

      block_write

      dev_arm

      dev_info

      dev_insert_chars

      dev_ischars

      dev_mode

      dev_read

      dev_readex

      dev_size

      dev_state

      disk_get_entry

      disk_space

      fsys_get_mount_dev

      fsys_get_mount_pt

      getnid

      mig4nto_init

      qnx_hint_attach

      qnx_hint_detach

      qnx_name_attach

      qnx_name_detach

      qnx_name_locate

      qnx_name_query

      qnx_osinfo

      qnx_proxy_attach

      qnx_proxy_detach

      qnx_psinfo

      qnx_spawn

      Readmsg

      Readmsgmx

      Receive

      Receivemx

      Reply

      Replymx

      Send

      Sendmx

      Trigger

      Writemsg

      Writemsgmx

      Yield

QNX 4 Functions & Neutrino Equivalents