Getting Started with QNX Neutrino - QNX Software Systems

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Index © 2009, QNX Software Systems GmbH & Co. KG. multi-threaded server 90 multipart messages 108 example 108, 111 IOV 108–110 kernel’s view 110 limitations 110 multipart versus linear 113 multiple threads 86 ND/PID/CHIDs 102 network detailed analysis 125 differences from local 126 network implementation 125 network transparent 133 network-distributed 85 networked 124 networked case determining how much data should have been transferred 128 determining how much data was transferred 127 networked overhead 127 node descriptor 92 not replying to the client 101 notifying client 117 obtaining a connection ID 92 offsetting into the client’s data 107, 112 peeking into a message 105 phases 94 priority 103 process ID 92 pulse MsgReceive() 114 MsgReceivePulse() 114 receiving 114 race condition with unblock 121 reading from the client’s address space 105 readying a thread 82 receive ID 100 and reply 95 receive-blocked 82 diagram 82 receiving only pulses 116 receiving pulses only 116 REPLY-blocked 165 reply-blocked 83 diagram 82 reply-driven model 88, 101 example 89 important subtlety 89 replying to the client 100 replying with no data 101 example 101 resource manager 84 run time installability of components 81 scatter/gather defined 332 SEND state diagram 82 SEND-blocked 165 send-blocked 83 diagram 82 send-driven model 88 example 89 important subtlety 89 server 95 example 96 server connection ID 99 server replying to client 95 server/subserver 86, 87 delegation of work 88 SETIOV() (macro) 109 SMP 86 STATE_RECV state 82 diagram 82 STATE_REPLY state 83 diagram 82 STATE_SEND state 83 summary 133 synthetic unblock pulse 120 thread and channels 98 thread pool 117 timeouts informing server 165 timeouts and_NTO_CHF_UNBLOCK 165 timer 116 tracking owner of message 98 transmit buffer 95 transparency over network 85 unblock 121 unblocking _NTO_MI_UNBLOCK_REQ 123, 124 354 Index April 30, 2009
© 2009, QNX Software Systems GmbH & Co. KG. Index client 119 server 95 unit testing 86 useful minimal set of functions 91 using IOV (vectored) functions 113 using the_NTO_MI_UNBLOCK_REQ flag 124 validity of receive ID 100 vs. traditional OS 84, 85 with pool of threads 86 write() example 108 writing a header later 107 writing to the client’s address space 107 microkernel 81 mktime() 148 MMU 27 defined 329 modularity due to message passing 81 mountpoint creating 211, 213 registering 211, 213 mq_open() 213 mq_receive() 213 mqueue 213 MsgDeliverEvent() 91, 97, 100, 117, 127, 242, 300, 331 breaking send hierarchy 97 networked case 126, 127 special use of receive ID 118 MsgError() 91, 101, 102 errno 102, 227 MsgInfo() 99, 123 MsgRead() 91, 105, 106, 113, 127, 128, 262 networked case 126, 127 offset parameter 107 MsgReadv() 91 example 111 MsgReceive() 91, 95, 96, 98, 99, 101, 104, 105, 111–114, 116, 117, 119, 121–124, 127, 128, 131–133, 151, 156, 182, 200, 289, 331 example 96, 105, 111, 151 networked case 126, 127 priority inheritance 132, 133 relationship of parameters to MsgReply() 95 MsgReceivePulse() 91, 113, 114, 116, 117, 331 MsgReceivev() 91, 111, 116, 209, 331 MsgReply() 91, 95, 97, 100–102, 107, 114, 122, 123, 127, 258, 259 errno 102 example 96, 153, 154 networked case 126, 127 relationship of parameters to MsgReceive() 95 MsgReplyv() 91, 112, 227, 259 MsgSend() 91–93, 95–97, 100, 102–104, 109, 110, 112, 113, 119, 165, 241 EINTR 119 example 93, 108 MsgSend() family 92, 112 guide to variants 112 MsgSendnc() 91, 112 MsgSendsv() 91, 112, 113 MsgSendsvnc() 91, 112, 113 MsgSendv() 77, 91, 112, 119, 258, 299 example 108 MsgSendvnc() 91, 112 MsgSendvs() 91, 112, 119 MsgSendvsnc() 91, 112 MsgVerifyEvent() 118 MsgWrite() 91, 101, 105, 107, 113, 127, 259 networked case 126, 127 offset parameter 107 MsgWritev() 91, 112, 259 offset parameter 112 MT_TIMEDOUT 153 multipart messages See Message passing MUTEX 24 mutex analogy 16 defined 330 mutual exclusion See mutex N name_attach() 102, 292 name_close() 102, 292 name_detach() 102, 292 name_open() 102, 292 name space See pathname space April 30, 2009 Index 355
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QNX Neutrino RTOS Getting Started w
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Contents About This Guide xi What y
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© 2009, QNX Software Systems GmbH
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List of Figures A process as a cont
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About This Guide April 30, 2009 Abo
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Typographical conventions © 2009,
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Foreword to the First Edition by Pe
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Chapter 2 Message Passing In this c
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Message passing and client/server
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Message passing and client/server
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Multiple threads © 2009, QNX Softw
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Multiple threads © 2009, QNX Softw
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Using message passing © 2009, QNX
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Pulses © 2009, QNX Software System
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Message passing over a network © 2
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Priority inheritance © 2009, QNX S
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Priority inheritance © 2009, QNX S
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Chapter 3 Clocks, Timers, and Getti
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Clocks and timers © 2009, QNX Soft
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Using timers © 2009, QNX Software
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Chapter 4 Interrupts In this chapte
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Neutrino and interrupts © 2009, QN
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Writing interrupt handlers © 2009,
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TIME TIME Writing interrupt handler
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Summary © 2009, QNX Software Syste
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