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Keywords - P

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parallel devices
· Parallel devices ·
throughput, maximizing
· Parallel devices ·
parallel ports
determining if port is available
· Parallel devices ·
parent directory
· Directory links ·
parent processes
effects of death on children
· Execution ·
parity error, signal generated
· Summary of signals ·
partitions
· OS partitions ·
bitmap
· Bitmap ·
creating, modifying, or deleting
· OS partitions ·
DOS partitions
· The DOS Filesystem Manager ·
flagging as bootable
· OS partitions ·
key components
· Key components of a QNX partition ·
loader block
· Loader block ·
primary partitions, number per disk
· OS partitions ·
root block
· Root block ·
root directory, special characteristics
· Root directory ·
types
· OS partitions ·

See also filesystem

passing names to other processes
· Passing pathnames between processes ·
pathname prefix tree
· Prefixes and regions of authority ·
pathname space
location
· I/O namespace ·
regions of authority
· Prefixes and regions of authority ·
pathnames
· Directories ·
converting relative pathnames to network pathnames
· Relative pathnames ·
network pathnames
· Network root ·
network pathnames, displaying
· A note about cd ·
resolving
· I/O manager prefixes ·
pending signals
· Receiving signals ·
performance
device subsystem
· Device subsystem performance ·
fast interactive response via adaptive scheduling
· Adaptive scheduling ·
Filesystem Manager
· Filesystem Manager performance ·
network throughput
· Load balancing ·
realtime
· A word about realtime performance ·
permissions
· File access ·
Photon
architecture differs from X Window System
· A graphical microkernel ·
architecture similar to that of OS microkernel
· A graphical microkernel ·
event space
· The Photon event space ·
event types
· Events ·
graphics drivers
· Graphics drivers · Multiple graphics drivers ·
microkernel runs as tiny process
· A graphical microkernel ·
regions
· Regions ·
widgets
· Widget building toolkit · Widget library ·
window manager
· The Photon Window Manager ·
physical node IDs
· Physical node ID ·
Pipe Manager
· Pipes ·
pipes
· Pipes · What is a file? ·
creating
· Pipes ·
effect of writing on a pipe with no readers
· Summary of signals ·

See also FIFOs

polling the network
· Logical node ID ·
prefix
· Prefixes and regions of authority ·
aliases
· Alias prefixes ·
tree
· Prefixes and regions of authority ·
displaying
· I/O manager prefixes ·
managed as a list of prefixes
· I/O manager prefixes ·
prefix (utility)
· I/O manager prefixes ·
priorities
· Process priorities ·
determining
· Process priorities ·
setting
· Process priorities ·
process control environments
· Single-computer model ·
Process Manager
general responsibilities
· Process Manager responsibilities ·
process name locator
· Process symbolic names ·
process names
attaching
· Process symbolic names ·
global names
· Process symbolic names ·
local names
· Process symbolic names ·
locating processes by name
· Process symbolic names ·
reducing potential name conflicts
· Process symbolic names ·
process states
DEAD
· Process states ·
determining
· Determining process states ·
HELD
· Process states ·
READY
· Process states ·
RECEIVE-blocked
· Blocked states · Process states ·
REPLY-blocked
· Blocked states · Process states ·
SEMAPHORE-blocked
· Process states ·
SEND-blocked
· Blocked states · Process states ·
SIGNAL-blocked
· Process states · Signals and messages ·
WAIT-blocked
· Process states ·
processes
catching signals
· Catching signals ·
child processes
creating
· spawn() ·
inheriting environment
· Process inheritance ·
running concurrently with parents
· Execution ·
children becoming zombies
· Termination ·
cooperating
· Process symbolic names ·
via messages
· Message-passing primitives ·
via pipes and FIFOs
· Pipes ·
creating
· Creation ·
creating on any node
· spawn() ·
creation primitives
· Process creation primitives ·
death of parent process, effects on children
· Execution ·
death of session leader, signal generated
· Summary of signals ·
executing
· Execution ·
executing on remote nodes
· Default network root ·
inheritance
· Process inheritance ·
life cycle
· The life cycle of a process ·
loading
· Loading ·
locating
· Process symbolic names ·
locating by name
· Process symbolic names ·
names (symbolic)
· Process symbolic names ·
opening a file
· I/O manager prefixes ·
opening the same file twice
· Open control blocks ·
orphan processes
· Execution ·
parent processes, death of
· Execution ·
passing names to
· Passing pathnames between processes ·
primitives
· Process creation primitives ·
priorities
determining
· Process priorities ·
setting
· Process priorities ·
remote execution
· Default network root ·
scheduling
· When scheduling decisions are made ·
adaptive method
· Adaptive scheduling ·
client-driven method
· Client-driven priority ·
FIFO method
· FIFO scheduling ·
round-robin method
· Round-robin scheduling ·
signal generated upon death of session leader
· Summary of signals ·
signals
catching
· Catching signals ·
effects of
· Receiving signals ·
receiving
· Receiving signals ·
states
· Process states ·
determining
· Determining process states ·
symbolic names
· Process symbolic names ·
synchronizing via message passing
· Process synchronization ·
system processes
· System processes ·
termination
· Termination ·
by a signal
· Termination ·
effect on virtual circuits
· Virtual circuits ·
effects of
· Termination ·
virtual
· Virtual processes ·
zombie
· Process states · Termination ·
proxies
creating
· IPC via proxies ·
processes that can use a proxy
· IPC via proxies ·
purpose of
· Interprocess communication · IPC via proxies ·
used by interrupt handlers
· IPC via proxies ·
virtual
· Virtual proxies ·

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