Getting Started with QNX Neutrino - QNX Software Systems

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© 2009, QNX Software Systems GmbH & Co. KG. primitives such as mutexes, condition variables, semaphores, etc. Threads are scheduled in FIFO, Round Robin,orsporadic scheduling mode. unblock A thread that had been blocked will be unblocked when the condition it has been blocked on is met. For example, a thread might be blocked waiting to receive a message. When the message is sent, the thread will be unblocked. virtual address An address that’s not necessarily equivalent to a physical address. Under Neutrino, all threads operate in virtual addressing mode, where, through the magic of an MMU, the virtual addresses are translated into physical addresses. Contrast with physical address and virtual memory. virtual memory A “virtual memory” system is one in which the virtual address space may not necessarily map on a one-to-one basis with the physical address space. The typical example (which Neutrino doesn’t support as of this writing) is a “paged” system where, in the case of a lack of RAM, certain parts of a process’s address space may be swapped out to disk. What Neutrino does support is the dynamic mapping of stack pages. 334 Glossary April 30, 2009
Index ! /dev/null resource manager 201 _DEVCTL_DATA() 268 _FTYPE_ANY 213 _FTYPE_MQUEUE 213 _IO_CHMOD 230 _IO_CHOWN 231 _IO_CLOSE_DUP 231, 274 _IO_CONNECT 236, 238, 240, 242, 245, 246, 250, 274, 299 _IO_CONNECT_COMBINE 242 _IO_CONNECT_COMBINE_CLOSE 217, 242 _IO_CONNECT_LINK 236 _IO_CONNECT_MKNOD 238 _IO_CONNECT_MOUNT 240 _IO_CONNECT_OPEN 242 _IO_CONNECT_READLINK 245 _IO_CONNECT_RENAME 246 _IO_CONNECT_UNLINK 250 _IO_DEVCTL 206, 233, 264 _IO_DUP 234 _IO_FDINFO 235 _IO_FLAG_RD 221 _IO_FLAG_WR 221 _IO_LSEEK 238, 274 _IO_MMAP 239 _IO_MSG 206, 241, 294–296, 298, 299 _IO_NOTIFY 241 _IO_OPENFD 243 _IO_PATHCONF 243 _IO_READ 244, 245, 254, 274 _IO_SET_CONNECT_RET 240, 243 _IO_SET_FDINFO_LEN 235 _IO_SET_PATHCONF_VALUE 244 _IO_SET_READ_NBYTES 245 _IO_SET_WRITE_NBYTES 252 _IO_SET_WRITE_NBYTES() 263 _IO_SPACE 247 _IO_STAT 248 _IO_SYNC 248 _IO_UTIME 251 _IO_WRITE 252, 260 _IO_XTYPE_NONE 257 _IO_XTYPE_OFFSET 244, 257, 259, 260, 263 _IOFUNC_NFUNCS 225 _IOMGR_PRIVATE_BASE 299 _IOMGR_PRIVATE_MAX 299 _NTO_CHF_COID_DISCONNECT 119 _NTO_CHF_DISCONNECT 118 _NTO_CHF_FIXED_PRIORITY 118, 132 _NTO_CHF_REPLY_LEN 100, 119 _NTO_CHF_SENDER_LEN 100, 119 _NTO_CHF_THREAD_DEATH 118 _NTO_CHF_UNBLOCK 118–121, 146, 165, 250 and kernel timeouts 165 modifying client’s behavior 121 _NTO_INTR_FLAGS_END 178 _NTO_INTR_FLAGS_PROCESS 178 _NTO_INTR_FLAGS_TRK_MSK 178 _NTO_MI_ENDIAN_BIG 99 _NTO_MI_ENDIAN_DIFF 99 _NTO_MI_NET_CRED_DIRTY 99 _NTO_MI_UNBLOCK_REQ 99, 123, 124, 249, 250, 269 _POSIX_DEVDIR_FROM 233 _POSIX_DEVDIR_TO 233 _PULSE_CODE_UNBLOCK 115 _RESMGR_CONNECT_NFUNCS 207 April 30, 2009 Index 335
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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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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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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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