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2008, QNX Software Systems GmbH & Co. KG.

Index

pthread_kill() 18, 66

 

pthread_mutex_destroy()

18, 40

pthread_mutex_init() 18, 40

pthread_mutex_lock()

18, 22, 33, 40, 98

pthread_mutex_timedlock() 33

pthread_mutex_trylock()

18, 34, 40, 44

pthread_mutex_unlock()

18, 33, 40, 98

pthread_mutexattr_init() 34 pthread_mutexattr_setprotocol() 34 pthread_mutexattr_setrecursive() 34

PTHREAD_PRIO_INHERIT 34 pthread_rwlock_rdlock() 38 pthread_rwlock_tryrdlock() 38 pthread_rwlock_trywrlock() 38 pthread_rwlock_unlock() 38 pthread_rwlock_wrlock() 38 pthread_self() 18 pthread_setname_np() 20 pthread_setschedparam() 18, 30 pthread_setspecific() 18 pthread_sigmask() 18 pthread_sleepon_lock() 38 pthread_spin_lock() 98 pthread_spin_unlock() 98

pty (pseudo terminal)

as pair of character devices 184 pulses 61, 64

Q

qdb

resource manager 274 QDB

introduction 274 Qnet 192, 197–206

limiting transmission retries 204 redundant 202

QNX 4 filesystem 119, 161

QNX 6 filesystem See Power-Safe filesystem

QNX Neutrino

 

design goals

3, 16

extensibility

9

flexibility 6

 

network as homogeneous set of resources 11

network flexibility 11 network transparency 11

preemptible even during message pass 16 realtime applications, suitability for 5

services

16

single-computer model 11

QoS (Quality of Service) 202

policies

202

R

raise()

66

 

 

 

 

 

RAM

114

 

 

 

 

 

RAM “filesystem”

157

 

 

RAM disk

154

 

 

 

 

 

RapidIO 207

 

 

 

 

 

rate monotonic analysis (RMA)

28

raw input mode

180

 

 

 

conditions for input request

180

FORWARD qualifier

181

 

MIN qualifier

180

 

 

TIME qualifier

180

 

 

TIMEOUT qualifier

180

 

read()

65

 

 

 

 

 

 

readblock()

146

 

 

 

 

 

readdir()

123, 151

 

 

 

 

reader/writer locks

32, 38

 

READY (thread state)

23

 

realtime performance

44

 

 

interrupt latency and

45

 

nested interrupts and

46

 

scheduling latency and 45

 

RECEIVE (thread state)

23

 

rectangle list (Photon)

250

 

recv()

213

 

 

 

 

 

recvfrom()

213

 

 

 

 

 

redirecting

 

 

 

 

 

 

input

84

 

 

 

 

 

output

84

 

 

 

 

 

redundant Qnet

202

 

 

 

regions (Photon)

247, 249

 

relative pathnames, converting to network pathnames 125

remove() 85

replenishment period (sporadic scheduling) 28

October 16, 2008

Index 303

Index

2008, QNX Software Systems GmbH & Co. KG.

REPLY (thread state) 23

 

 

 

res_init()

213

 

 

 

 

 

 

res_mkquery()

213

 

 

 

 

res_query()

213

 

 

 

 

 

res_querydomain()

213

 

 

 

res_search()

213

 

 

 

 

 

res_send()

 

213

 

 

 

 

 

 

RESCONF

213

 

 

 

 

 

resolv.conf

213

 

 

 

 

resource managers

151

 

 

 

 

atomic operations

146

 

 

 

attributes structure

147

 

 

 

can be started and stopped dynamically

139

 

 

 

 

 

 

 

communicate with clients via IPC

142

context for client requests

144

 

defined

139

 

 

 

 

 

devb

275

 

 

 

 

 

 

don’t require any special arrangements with

the kernel

139

 

 

 

io-audio

275

 

 

 

 

io-fs

275

 

 

 

 

 

io-media

275

 

 

 

 

io-usb

275

 

 

 

 

 

iofunc_*() shared library

146

 

message types

143

 

 

 

mme

274

 

 

 

 

 

 

mount structure

147

 

 

 

qdb

274

 

 

 

 

 

 

shared library

144

 

 

 

 

similarity to traditional device drivers 139

similarity to user-level servers

139

thread management

145

 

 

 

unique features of

142

 

 

 

resources

 

 

 

 

 

 

 

 

accessing on other machines

11

 

no real difference between local and remote

11

 

 

 

 

 

 

 

open

126

 

 

 

 

 

 

RLIMIT_AS

82

 

 

 

 

 

 

RLIMIT_DATA

82

 

 

 

 

 

RLIMIT_VMEM

82

 

 

 

 

rm 85

 

 

 

 

 

 

 

 

robustness

 

 

 

 

 

 

 

 

improved via memory protection

114

of application architectures via

Send/Receive/Reply

63

of implementations with

 

Send/Receive/Reply

62

of IPC

53

 

 

 

of signal handlers

64

 

ROM 114

 

 

 

round-robin scheduling

26, 27

 

runmask

103

 

 

 

inheriting

103

 

 

RUNNING (thread state) 23

 

runtime linker

134

 

 

S

scaling

 

 

 

advantages of

3

of applications

3

scatter/gather DMA

56

sched_yield()

24

 

SchedGet()

18

 

SchedSet()

18

 

scheduling

 

 

 

FIFO

26, 27

 

latency

 

45

 

method

 

 

determining

26

setting

26

 

round-robin 26, 27

SMP systems

101

sporadic

26, 28

threads

 

24

 

seek points

126, 127

segments

132

 

select() 65, 213

 

SEM (thread state)

23

sem_destroy()

40

 

sem_init()

40

 

sem_post()

40

 

sem_trywait()

40

 

sem_wait()

40

 

semaphores

 

16, 31, 32, 38

named

39

 

SMP

102

 

SEND (thread state)

23

304 Index

October 16, 2008

2008, QNX Software Systems GmbH & Co. KG.

Index

send() 213

 

 

 

 

 

sendto()

213

 

 

 

 

 

sensitivity bitmask (Photon)

249

 

serial

 

 

 

 

 

 

 

devices

183

 

 

 

drivers

184

 

 

 

 

Server Side Includes (SSI)

217

 

services

214

 

 

 

 

services, handled by system processes

9

sessions, remote node

112

 

 

setprotoent()

213

 

 

 

setrlimit()

82

 

 

 

 

 

setservent()

213

 

 

 

setsockopt()

213

 

 

 

shared libraries (.so files)

15, 109, 134

shared memory

31, 39, 58, 72–77

 

shm_ctl()

74

 

 

 

 

 

shm_open()

74

 

 

 

 

shm_unlink()

74

 

 

 

shutdown()

213

 

 

 

 

SIGABRT

69

 

 

 

 

 

sigaction()

66

 

 

 

 

SIGALRM

69

 

 

 

 

 

SIGBUS

69

 

 

 

 

 

SIGCHLD

69

 

 

 

 

 

SIGCONT

69

 

 

 

 

 

SIGDEADLK

69

 

 

 

SIGEMT

69

 

 

 

 

 

SIGFPE

69

 

 

 

 

 

SIGHUP

69

 

 

 

 

 

SIGILL

69

 

 

 

 

 

SIGINT

69

 

 

 

 

 

SIGIOT

69

 

 

 

 

 

SIGKILL

69

 

 

 

 

 

signal()

68

 

 

 

 

 

SignalAction()

66

 

 

 

SignalKill()

18, 23, 66

 

 

 

SignalProcmask()

18, 66

 

 

signals

16

 

 

 

 

 

 

POSIX and UNIX

66

 

 

queuing of

 

67

 

 

 

rules for a multithreaded process

66

similarity to pulses

67

 

 

targeted at specific threads 66

 

SignalSuspend()

66

 

 

 

SignalWaitinfo()

66

 

 

 

SIGPIPE

69

 

 

 

 

 

SIGPOLL

 

69

 

 

 

 

 

sigprocmask()

66

 

 

 

 

sigqueue()

66

 

 

 

 

SIGQUIT

 

69

 

 

 

 

 

SIGSEGV

 

69

 

 

 

 

 

SIGSTOP

 

69

 

 

 

 

 

SIGSUSPEND (thread state)

23

 

sigsuspend()

23, 66

 

 

 

SIGSYS

 

69

 

 

 

 

 

SIGTERM

 

69

 

 

 

 

 

sigtimedwait()

44

 

 

 

 

SIGTRAP

 

69

 

 

 

 

 

SIGTSTP

 

69

 

 

 

 

 

SIGTTIN

69

 

 

 

 

 

SIGTTOU

 

69

 

 

 

 

 

SIGURG

69

 

 

 

 

 

SIGUSR1

 

69

 

 

 

 

 

SIGUSR2

 

69

 

 

 

 

 

SIGWAITINFO (thread state) 23

 

sigwaitinfo()

23, 66

 

 

 

SIGWINCH

69

 

 

 

 

single-computer model

11

 

 

slay

104

 

 

 

 

 

sleep()

44

 

 

 

 

 

sleepon locks

32, 38

 

 

 

slinger

 

216

 

 

 

 

SMP (Symmetric Multiprocessing)

97, 98

snapshot (Power-Safe filesystem)

164

socket()

 

213

 

 

 

 

 

sockets (logical flash drives)

169

 

software interrupt

See signals

 

SPAWN_EXPLICIT_CPU 104

 

SPAWN_SETGROUP

111

 

 

SPAWN_SETSIGDEF

111

 

 

SPAWN_SETSIGMASK

111

 

spawn()

104

 

 

 

 

 

family of functions 109–111

 

spinlocks

 

102

 

 

 

 

SPOF

225

 

 

 

 

 

sporadic scheduling

26, 28

 

 

SSI (Server Side Includes)

217

 

STACK (thread state)

23

 

 

startup code (startup-*)

100

 

stat()

148

 

 

 

 

 

states

 

 

 

 

 

 

 

 

October 16, 2008

Index 305

Index

2008, QNX Software Systems GmbH & Co. KG.

CONDVAR

22

 

 

DEAD

 

22

 

 

 

 

INTERRUPT

22

 

JOIN

22

 

 

 

 

MUTEX

22

 

 

 

NANOSLEEP

23

 

NET_REPLY

23

 

NET_SEND

23

 

READY

23

 

 

 

RECEIVE

23

 

 

REPLY

23

 

 

 

RUNNING

23

 

 

SEM

23

 

 

 

 

SEND

 

23

 

 

 

 

SIGSUSPEND

 

23

 

SIGWAITINFO

23

 

STACK

23

 

 

 

STOPPED

23

 

 

WAITCTX

23

 

 

WAITPAGE 23

 

 

WAITTHREAD

23

 

static linking

131

 

 

 

static partitions

237

 

 

STOPPED (thread state)

23

stty 182

 

 

 

 

 

 

superblocks

163

 

 

 

symbol names, resolving

136

symbolic links

 

 

 

 

cd command and

125

symbolic prefixes

123

 

Symmetric Multiprocessing See SMP

SyncCondvarSignal()

18, 40

SyncCondvarWait()

 

18, 40

SyncDestroy()

18, 40

 

synchronization services

32, 40

SyncMutexEvent()

18

 

SyncMutexLock()

18, 40

 

SyncMutexUnlock()

 

18, 40

SyncSemPost()

40

 

 

 

SyncSemWait()

23, 40

 

SyncTypeCreate()

18, 40

 

system

 

 

 

 

 

 

emergency access to

242

page

41

 

 

 

 

processes

9

 

 

 

similarity to user-written processes

9

T

tcdropline()

179

 

 

 

 

tcgetattr()

179

 

 

 

 

 

tcgetpgrp()

179

 

 

 

 

 

tcinject()

179

 

 

 

 

 

 

TCP/IP

211–217

 

 

 

 

resource manager (io-pkt*)

212

stack configurations

211

 

 

tcsendbreak()

179

 

 

 

 

tcsetattr()

179

 

 

 

 

 

tcsetpgrp()

179

 

 

 

 

 

terminal emulation

183

 

 

 

textto

166

 

 

 

 

 

 

thread scheduler

237

 

 

 

ThreadCancel()

18

 

 

 

 

ThreadCreate()

 

18, 23

 

 

 

ThreadCtl()

18, 104

 

 

 

ThreadDestroy()

18

 

 

 

ThreadDetach()

18

 

 

 

 

ThreadJoin()

18

 

 

 

 

threads

16, 145

 

 

 

 

 

all share same kernel interface

109

and barriers

35

 

 

 

attributes of

20

 

 

 

cancellation handlers

20

 

 

concurrency advantages

32

 

defined

18

 

 

 

 

 

life cycle

21

 

 

 

 

migration, reducing

101

 

 

names

20

 

 

 

 

 

priority

20, 24

 

 

 

 

priority inversion 25

 

 

process must contain one or more 18

register set

 

20

 

 

 

 

scheduling

 

24

 

 

 

 

FIFO

27

 

 

 

 

 

round-robin

27

 

 

 

sporadic

 

28

 

 

 

 

signal mask

20

 

 

 

stack

20

 

 

 

 

 

 

states

21

 

 

 

 

 

 

synchronization

31

 

 

 

tid

20

 

 

 

 

 

 

 

TLS (thread local storage)

20

 

time_t

41

 

 

 

 

 

 

306 Index

October 16, 2008

2008, QNX Software Systems GmbH & Co. KG.

Index

timeout service

43

 

timer_create()

44

 

timer_delete()

44

 

timer_getoverrun()

44

timer_gettime()

44

 

timer_settime()

44

 

TimerAlarm()

44

 

TimerCreate()

44

 

TimerDestroy()

44

 

TimerInfo()

44

 

timers 16, 42

 

 

cyclical mode

43

TimerSettime()

44

 

TimerTimeout()

43, 44

timeslice

27

 

 

TLB (translation look-aside buffer) 115, 118

TLS (thread local storage)

20

TraceEvent()

93

 

transactions

157

 

transparency of network

11

typed memory

78

 

typographical conventions

xvi

U

UART

49

 

UDF (Universal Disk Format) filesystem

173

umount

193

 

uname

15

 

Unicode

253

 

Universal Disk Format (UDF) filesystem

173

unlink()

85

 

UNMAP_INIT_OPTIONAL 78

 

UNMAP_INIT_REQUIRED 78

 

UTF-8 encoding 253

 

utime()

148

 

V

variable page size

118

vfork() 109, 113

 

virtual addresses

115

virtual consoles

183

W

WAITCTX (thread state)

23

 

WAITPAGE (thread state)

23

 

WAITTHREAD (thread state) 23

 

watchdog

116

 

 

 

web server

216

 

 

 

wide emitting mode (instrumented kernel)

90

widgets (Photon)

255–267

 

window manager

255

 

 

windows, dragging across network links

252

write() 65, 131

 

 

 

Z

zero-copy architecture (io-pkt*) 189

October 16, 2008

Index 307

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