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Keywords - I

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I/O

functions table in resource managers

· Initialize functions used to handle messages ·

message

· I/O messages ·

ports

· _NTO_TCTL_IO behavior ·

privileges

· _NTO_TCTL_IO behavior ·

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include directory

· Header files in /usr/include ·

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INCVPATH macro

· The qrules.mk include file ·

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initialization, debugger commands

· GDB commands ·

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INSTALLDIR macro

· The qtargets.mk include file ·

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interprocess communication

See IPC

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interrupt handler

· An application as a set of processes · Priority range ·

will preempt any thread

· Priority range ·

See also ISR

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Interrupt Request (IRQ)

defined

· Attaching and detaching interrupts ·

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Interrupt Service Routine

See ISR

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InterruptAttach()

· Attaching and detaching interrupts · Handling interrupts · Signalling the application code ·

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InterruptAttachEvent()

· Attaching and detaching interrupts · Handling interrupts · Signalling the application code ·

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InterruptDetach()

· Attaching and detaching interrupts ·

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InterruptLock()

· Updating common data structures ·

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Interruptmask()

· Safe functions ·

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interrupts

defined

· What's an interrupt? ·

edge-triggered

· Determining the source of the interrupt · Edge-triggered IRQ ·

latency

· Interrupt latency ·

level-sensitive

· Determining the source of the interrupt · Level-sensitive IRQ ·

masking

· Safe functions · Servicing the hardware · Using InterruptAttachEvent() ·

ARM platforms

· _NTO_TCTL_IO behavior ·

automatically by the kernel

· Interrupt environment ·

running out of events

· Running out of interrupt events ·

sharing

· Ordering of shared interrupts ·

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InterruptUnlock()

· Updating common data structures ·

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InterruptUnmask()

must be called same number of times as InterruptMask()

· Safe functions ·

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InterruptWait()

· Handling interrupts · Sample code for handling interrupts ·

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_IO_CHOWN

· The mount structure ·

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_IO_CLOSE

· Handling open(), dup(), and close() messages · _IO_CONNECT_COMBINE · The library's combine-message handling ·

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io_close()

· _IO_CONNECT_COMBINE · _IO_CONNECT_COMBINE_CLOSE ·

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_IO_CLOSE_DUP

· Under the client's covers ·

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_IO_CLOSE_OCB

· Handling open(), dup(), and close() messages · Updating the time for reads and writes ·

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_IO_COMBINE_FLAG

· Component responses ·

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_IO_CONNECT

· Connect messages · Handling client unblocking due to signals or timeouts · Handling open(), dup(), and close() messages · Start the resource manager message loop · The _IO_OPEN message for filesystems · Under the client's covers ·

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_IO_CONNECT message

· Handling directories · Under the resource manager's covers ·

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_IO_CONNECT_COMBINE

· _IO_CONNECT_COMBINE ·

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_IO_CONNECT_COMBINE_CLOSE

· _IO_CONNECT_COMBINE_CLOSE ·

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_IO_DEVCTL

· Handling devctl() messages · _IO_CONNECT_COMBINE · _resmgr_attr_t control structure · Sample code for handling _IO_DEVCTL messages ·

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io_devctl()

· _IO_CONNECT_COMBINE ·

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_IO_DUP

· Handling open(), dup(), and close() messages ·

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io_lock_ocb()

· Component data access · _IO_CONNECT_COMBINE · _IO_CONNECT_COMBINE_CLOSE ·

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_IO_LSEEK

· Component data access · Component responses · Returning directory entries from _IO_READ · The library's combine-message handling ·

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_IO_LSEEK message

· Component responses · Returning directory entries from _IO_READ · The library's combine-message handling · The readblock() function ·

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io_lseek()

· Component data access ·

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_IO_MSG

· _resmgr_attr_t control structure ·

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_IO_NOTIFY

· Sample code for handling _IO_NOTIFY messages ·

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io_notify()

· Handling ionotify() and select() ·

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_IO_OPEN

· Handling client unblocking due to signals or timeouts · The _IO_OPEN message for filesystems · The mount structure ·

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io_open handler

· Under the resource manager's covers ·

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io_open()

· Connect message types · Handling client unblocking due to signals or timeouts · Handling the _IO_READ message · _IO_CONNECT_COMBINE · _IO_CONNECT_COMBINE_CLOSE · The _IO_OPEN message for filesystems · Using the default functions ·

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_IO_PATHCONF

· The mount structure ·

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_IO_READ

· Component responses · Returning directory entries from _IO_READ · The library's combine-message handling ·

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io_read handler

· Handling the _IO_READ message · iofunc layer · Returning directory entries from _IO_READ · Under the resource manager's covers ·

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_IO_READ message

· Component responses · Handling directories · Handling pread*() and pwrite*() · Handling the _IO_READ message · I/O messages · Returning directory entries from _IO_READ · Returning information associated with a directory structure · Sample code for handling _IO_READ messages · Start the resource manager message loop · The library's combine-message handling · The readblock() function · Under the resource manager's covers · Writing the entire function yourself ·

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io_read structure

· Handling the _IO_READ message ·

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io_read()

· Sample code for handling _IO_READ messages · Taking over more than one device ·

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_IO_STAT

· Device resource managers · _IO_CONNECT_COMBINE · _IO_CONNECT_COMBINE_CLOSE · Updating the time for reads and writes ·

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io_stat()

· _IO_CONNECT_COMBINE · _IO_CONNECT_COMBINE_CLOSE ·

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_IO_UNBLOCK

· Handling client unblocking due to signals or timeouts · The library's combine-message handling ·

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io_unlock_ocb()

· Component data access · _IO_CONNECT_COMBINE · _IO_CONNECT_COMBINE_CLOSE ·

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_IO_WRITE

· Component data access · Under the client's covers ·

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io_write handler

· Under the resource manager's covers ·

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_IO_WRITE message

· Handling pread*() and pwrite*() · Under the resource manager's covers · Writing the entire function yourself ·

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io_write()

· Component data access · Handling the _IO_WRITE message · Sample code for handling _IO_WRITE messages · Taking over more than one device ·

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_IO_XTYPE_NONE

· Handling the xtype member ·

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_IO_XTYPE_OFFSET

· Handling readcond() · Handling the xtype member ·

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IOFUNC_ATTR_ATIME

· The attribute structure ·

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IOFUNC_ATTR_CTIME

· The attribute structure ·

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IOFUNC_ATTR_DIRTY_MODE

· The attribute structure ·

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IOFUNC_ATTR_DIRTY_MTIME

· The attribute structure ·

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IOFUNC_ATTR_DIRTY_NLINK

· The attribute structure ·

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IOFUNC_ATTR_DIRTY_OWNER

· The attribute structure ·

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IOFUNC_ATTR_DIRTY_RDEV

· The attribute structure ·

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IOFUNC_ATTR_DIRTY_SIZE

· The attribute structure ·

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IOFUNC_ATTR_DIRTY_TIME

· The attribute structure · Updating the time for reads and writes ·

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iofunc_attr_init()

· The attribute structure ·

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iofunc_attr_lock()

· Locking and unlocking the attribute structure · The attribute structure · Using the helper functions ·

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IOFUNC_ATTR_PRIVATE

· The attribute structure ·

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iofunc_attr_t

· The attribute structure ·

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iofunc_attr_unlock()

· Locking and unlocking the attribute structure · The attribute structure · Using the helper functions ·

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iofunc_check_access()

· The _IO_OPEN message for filesystems ·

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iofunc_chmod()

· Using the helper functions ·

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iofunc_chmod_default()

· Using the helper functions ·

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iofunc_chown_default()

· The attribute structure ·

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iofunc_func_init()

· Initialize functions used to handle messages ·

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iofunc_lock()

· The attribute structure ·

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iofunc_lock_default()

· The attribute structure ·

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iofunc_mmap()

· The attribute structure ·

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iofunc_mmap_default()

· The attribute structure ·

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IOFUNC_MOUNT_32BIT

· The mount structure ·

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IOFUNC_MOUNT_FLAGS_PRIVATE

· The mount structure ·

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iofunc_mount_t

extending

· Extending the mount structure ·

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_IOFUNC_NFUNCS

· The mount structure ·

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iofunc_ocb_attach()

· The attribute structure · Using the helper functions ·

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iofunc_ocb_calloc()

· Extending the OCB and attribute structures ·

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iofunc_ocb_detach()

· The attribute structure ·

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iofunc_ocb_free()

· Extending the OCB and attribute structures ·

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IOFUNC_OCB_PRIVILEGED

· The Open Control Block (OCB) structure ·

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iofunc_open()

· Using the helper functions ·

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iofunc_open_default()

· The attribute structure · Using the default functions · Using the helper functions ·

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IOFUNC_PC_CHOWN_RESTRICTED

· The mount structure ·

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IOFUNC_PC_LINK_DIR

· The mount structure ·

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IOFUNC_PC_NO_TRUNC

· The mount structure ·

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IOFUNC_PC_SYNC_IO

· The mount structure ·

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iofunc_read_default()

· Writing the entire function yourself ·

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iofunc_read_verify()

· Writing the entire function yourself ·

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iofunc_stat()

· Using the helper functions ·

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iofunc_stat_default()

· Using the helper functions ·

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iofunc_time_update()

· The attribute structure ·

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iofunc_write_default()

· Writing the entire function yourself ·

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iofunc_write_verify()

· Writing the entire function yourself ·

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IOV

· Returning directory entries from _IO_READ ·

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IPC (interprocess communication)

· Process model ·

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ISR

coupling data structure with

· Using InterruptAttach() ·

defined

· What's an interrupt? ·

environment

· Interrupt environment ·

functions safe to use within

· Safe functions ·

preemption considerations

· Updating common data structures ·

pseudo-code example

· Using InterruptAttach() ·

responsibilities of

· Servicing the hardware ·

returning SIGEV_INTR

· Using InterruptAttach() ·

returning SIGEV_PULSE

· Using InterruptAttach() ·

returning SIGEV_SIGNAL

· Using InterruptAttach() ·

rules of acquisition

· Attaching and detaching interrupts ·

running out of interrupt events

· Running out of interrupt events ·

signalling a thread

· Signalling the application code ·

See also interrupt handler

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