Unix™ Systems Programming [Electronic resources] : Communication, Concurrency, and Threads نسخه متنی

با بیش از 100000 منبع الکترونیکی رایگان به زبان فارسی ، عربی و انگلیسی

50]. The POSIX standard consists of a base specification containing mandatory requirements and several optional extensions. Implementations that comply with this standard have the symbol _POSIX_VERSION defined in unistd.h as 200112L.

At the time this book was written, none of our test systems claimed to be fully compliant with even the base of this version of this POSIX standard. Table 1.3 on page 19 shows the POSIX extensions that seem to be supported by our test systems. That is, the documentation agrees with the POSIX standard and the programs from the book behave correctly. Until these systems claim compliance, we must take this on faith.

An implementation that defines _POSIX_VERSION as 200112L must support the base standard. These systems support a particular extension if the corresponding symbol is defined in that implementation's unistd.h header file. Section 5.1. Call sysconf with a name derived from the symbol by replacing POSIX with SC. For example, to test the value of _POSIX_THREADS, call sysconf with parameter _SC_THREADS.

Table E.1. POSIX extensions. If the symbol is defined in `unistd.h`, the system supports the corresponding POSIX extension.
POSIX code	symbol	extension description
ADV	`_POSIX_ADVISORY_INFO`	advisory information
AIO	`_POSIX_ASYNCHRONOUS_IO`	asynchronous input and output
BAR	`_POSIX_BARRIERS`	barriers
BE	`_POSIX2_PBS`	batch environment services and utilities
CD	`_POSIX2_C_DEV`	C-language development utilities
CPT	`_POSIX_CPUTIME`	process CPU-time clocks
CS	`_POSIX_CLOCK_SELECTION`	clock selection
CX		extension to the ISO C standard (required)
FD	`_POSIX2_FORT_DEV`	FORTRAN development utilities
FR	`_POSIX2_FORT_RUN`	FORTRAN runtime utilities
FSC	`_POSIX_FSYNC`	file synchronization
IP6		IPV6
MC1		shorthand for ADV and either MF or SHM
MC2		shorthand for MF, SHM or MPR
	`_POSIX_JOB_CONTROL`	job control (required)
MF	`_POSIX_MAPPED_files`	memory mapped files
ML	`_POSIX_MEMLOCK`	process memory locking
MLR	`_POSIX_MEMLOCK_RANGE`	range memory locking
MON	`_POSIX_MONOTONIC_CLOCK`	monotonic clock
MPR	`_POSIX_MEMORY_PROTECTION`	memory protection
MSG	`_POSIX_MESSAGE_PASSING`	message passing
MX		IEC 60559 floating-point option
OB		obsolescent
OF		output format incompletely specified
OH		optional header
PIO	`_POSIX_PRIORITIZED_IO`	prioritized input and output
PS	`_POSIX_PRIORITY_SCHEDULING`	processing scheduling
RTS	`_POSIX_REALTIME_SIGNALS`	realtime signals
SD	`_POSIX2_SW_DEV`	software development utilities
	`_POSIX_SAVED_IDS`	process has saved set-user-ID (required)
SEM	`_POSIX_SEMAPHORES`	semaphores
SHM	`_POSIX_SHARED_MEMORY_OBJECTS`	shared memory objects
SIO	`_POSIX_SYNCHRONIZED_IO`	synchronized input and output
SPI	`_POSIX_SPIN_LOCKS`	spin locks
SPN	`_POSIX_SPAWN`	spawn
SS	`_POSIX_SPORADIC_SERVER`	process sporadic server
TCT	`_POSIX_THREAD_CPUTIME`	thread CPU-time clocks
TEF	`_POSIX_TRACE_EVENT_FILTER`	trace event filter
THR	`_POSIX_THREADS`	threads
TMO	`_POSIX_TIMEOUTS`	timeouts
TMR	`_POSIX_TIMERS`	timers
TPI	`_POSIX_PRIO_INHERIT`	thread priority inheritance
TPP	`_POSIX_PRIO_PROTECT`	thread priority protection
TPS	`_POSIX_PRIORITY_SCHEDULING`	thread execution scheduling
TRC	`_POSIX_TRACE`	trace
TRI	`_POSIX_TRACE_INHERIT`	trace inherit
TRL	`_POSIX_TRACE_LOG`	trace log
TSA	`_POSIX_THREAD_ATTR_STACKADDR`	thread stack address attribute
TSF	`_POSIX_THREAD_SAFE_FUNCTIONS`	thread-safe functions
TSH	`_POSIX_THREAD_PROCESS_SHARED`	thread process-shared synchronization
TSP	`_POSIX_THREAD_SPORADIC_SERVER`	thread sporadic server
TSS	`_POSIX_THREAD_ATTR_STACKSIZE`	thread stack address size
TYM	`_POSIX_TYPED_MEMORY_OBJECTS`	typed memory objects
UP	`_POSIX2_UPE`	user portability utilities
XSI	`_XOPEN_UNIX`	XSI
XSR	`_XOPEN_STREAMS`	XSR streams

Unix™ Systems Programming [Electronic resources] : Communication, Concurrency, and Threads نسخه متنی

فارسی

کردی

العربیه

اردو

Türkçe

Русский

English

Français

کانال فیلم من

تبیان من

فایلهای من

کتابخانه من

پنل پیامکی

وبلاگ من

اینجــــا یک کتابخانه دیجیتالی است

با بیش از 100000 منبع الکترونیکی رایگان به زبان فارسی ، عربی و انگلیسی

Unix™ Systems Programming [Electronic resources] : Communication, Concurrency, and Threads - نسخه متنی

Prentice Hall

آدرس پست الکترونیک گیرنده :

آدرس پست الکترونیک فرستنده :

نام و نام خانوارگی فرستنده :

پیغام برای گیرنده ( حداکثر 250 حرف ) :

کد امنیتی را وارد نمایید

فونت

اندازه قلم

حالت نمایش

Table E.1. POSIX extensions. If the symbol is defined in `unistd.h`, the system supports the corresponding POSIX extension.

Unix™ Systems Programming [Electronic resources] : Communication, Concurrency, and Threads نسخه متنی

Table E.1. POSIX extensions. If the symbol is defined in unistd.h, the system supports the corresponding POSIX extension.

Table E.1. POSIX extensions. If the symbol is defined in `unistd.h`, the system supports the corresponding POSIX extension.