path: root/manual/macros.texi

@c Define common macros used to keep phrasing consistent in the manual.

@ifclear MACROS
@set MACROS

@c Names used to refer to the library, as noun phrases at the start or
@c not at the start of a sentence.
@macro Theglibc
The GNU C Library
@end macro
@macro theglibc
the GNU C Library
@end macro

@c Name used to refer to the library as an adjective.
@macro glibcadj
GNU C Library
@end macro

@c Description applying to all GNU systems; that is, used in
@c describing a property of a system such that no system without that
@c property would be considered a variant of the GNU system.
@macro gnusystems
GNU systems
@end macro

@c Systems that are not GNU systems.
@macro nongnusystems
non-GNU systems
@end macro

@c Description applying to GNU/Linux and GNU/Hurd systems, but not
@c necessarily to other variants of the GNU system.
@macro gnulinuxhurdsystems
GNU/Linux and GNU/Hurd systems
@end macro

@c Description applying to GNU/Hurd systems; that is, systems using the
@c GNU Hurd with the GNU C Library.
@macro gnuhurdsystems
GNU/Hurd systems
@end macro

@c Description applying to GNU/Linux systems; that is, systems using
@c the Linux kernel with the GNU C Library.
@macro gnulinuxsystems
GNU/Linux systems
@end macro

@c Document the safety functions as preliminary.  It does NOT expand its
@c comments.
@macro prelim {comments}
Preliminary:

@end macro
@c Document a function as thread safe.
@macro mtsafe {comments}
| MT-Safe \comments\

@end macro
@c Document a function as thread unsafe.
@macro mtunsafe {comments}
| MT-Unsafe \comments\

@end macro
@c Document a function as safe for use in asynchronous signal handlers.
@macro assafe {comments}
| AS-Safe \comments\

@end macro
@c Document a function as unsafe for use in asynchronous signal
@c handlers.  This distinguishes unmarked functions, for which this
@c property has not been assessed, from those that have been analyzed.
@macro asunsafe {comments}
| AS-Unsafe \comments\

@end macro
@c Document a function as safe for use when asynchronous cancellation is
@c enabled.
@macro acsafe {comments}
| AC-Safe \comments\

@end macro
@c Document a function as unsafe for use when asynchronous cancellation
@c is enabled.  This distinguishes unmarked functions, for which this
@c property has not been assessed, from those that have been analyzed.
@macro acunsafe {comments}
| AC-Unsafe \comments\

@end macro
@c Format safety properties without referencing the section of the
@c definitions.  To be used in the definitions of the properties
@c themselves.
@macro sampsafety {notes}
@noindent
\notes\|


@end macro
@c Format the safety properties of a function.
@macro safety {notes}
\notes\| @xref{POSIX Safety Concepts}.


@end macro
@c Function is MT- and AS-Unsafe due to an internal race.
@macro mtasurace {comments}
race\comments\
@end macro
@c Function is AS-Unsafe due to an internal race.
@macro asurace {comments}
race\comments\
@end macro
@c Function is MT-Safe, but with potential race on user-supplied object
@c of opaque type.
@macro mtsrace {comments}
race\comments\
@end macro
@c Function is MT- and AS-Unsafe for modifying an object that is decreed
@c MT-constant due to MT-Unsafe accesses elsewhere.
@macro mtasuconst {comments}
const\comments\
@end macro
@c Function accesses the assumed-constant locale object.
@macro mtslocale {comments}
locale\comments\
@end macro
@c Function accesses the assumed-constant environment.
@macro mtsenv {comments}
env\comments\
@end macro
@c Function accesses the assumed-constant hostid.
@macro mtshostid {comments}
hostid\comments\
@end macro
@c Function accesses the assumed-constant _sigintr variable.
@macro mtssigintr {comments}
sigintr\comments\
@end macro
@c Function performs MT-Unsafe initialization at the first call.
@macro mtuinit {comments}
init\comments\
@end macro
@c Function performs libc_once AS-Unsafe initialization.
@macro asuinit {comments}
init\comments\
@end macro
@c Function performs libc_once AC-Unsafe initialization.
@macro acuinit {comments}
init\comments\
@end macro
@c Function is AS-Unsafe because it takes a non-recursive mutex that may
@c already be held by the function interrupted by the signal.
@macro asulock {comments}
lock\comments\
@end macro
@c Function is AC-Unsafe because it may fail to release a mutex.
@macro aculock {comments}
lock\comments\
@end macro
@c Function is AS-Unsafe because some data structure may be inconsistent
@c due to an ongoing updated interrupted by a signal.
@macro asucorrupt {comments}
corrupt\comments\
@end macro
@c Function is AC-Unsafe because some data structure may be left
@c inconsistent when cancelled.
@macro acucorrupt {comments}
corrupt\comments\
@end macro
@c Function is AS- and AC-Unsafe because of malloc/free.
@macro ascuheap {comments}
heap\comments\
@end macro
@c Function is AS-Unsafe because of malloc/free.
@macro asuheap {comments}
heap\comments\
@end macro
@c Function is AS- and AC-Unsafe because of dlopen/dlclose.
@macro ascudlopen {comments}
dlopen\comments\
@end macro
@c Function is AS- and AC-Unsafe because of unknown plugins.
@macro ascuplugin {comments}
plugin\comments\
@end macro
@c Function is AS- and AC-Unsafe because of i18n.
@macro ascuintl {comments}
i18n\comments\
@end macro
@c Function is AS--Unsafe because of i18n.
@macro asuintl {comments}
i18n\comments\
@end macro
@c Function may leak file descriptors if async-cancelled.
@macro acsfd {comments}
fd\comments\
@end macro
@c Function may leak memory if async-cancelled.
@macro acsmem {comments}
mem\comments\
@end macro
@c Function is unsafe due to temporary overriding a signal handler.
@macro mtascusig {comments}
sig\comments\
@end macro
@c Function is MT- and AS-Unsafe due to temporarily changing attributes
@c of the controlling terminal.
@macro mtasuterm {comments}
term\comments\
@end macro
@c Function is AC-Unsafe for failing to restore attributes of the
@c controlling terminal.
@macro acuterm {comments}
term\comments\
@end macro
@c Function sets timers atomically.
@macro mtstimer {comments}
timer\comments\
@end macro
@c Function sets and restores timers.
@macro mtascutimer {comments}
timer\comments\
@end macro
@c Function temporarily changes the current working directory.
@macro mtasscwd {comments}
cwd\comments\
@end macro
@c Function may fail to restore to the original current working
@c directory after temporarily changing it.
@macro acscwd {comments}
cwd\comments\
@end macro
@c Function is MT-Safe while POSIX says it needn't be MT-Safe.
@macro mtsposix {comments}
!posix\comments\
@end macro
@c Function is MT-Unsafe while POSIX says it should be MT-Safe.
@macro mtuposix {comments}
!posix\comments\
@end macro
@c Function is AS-Safe while POSIX says it needn't be AS-Safe.
@macro assposix {comments}
!posix\comments\
@end macro
@c Function is AS-Unsafe while POSIX says it should be AS-Safe.
@macro asuposix {comments}
!posix\comments\
@end macro
@c Function is AC-Safe while POSIX says it needn't be AC-Safe.
@macro acsposix {comments}
!posix\comments\
@end macro
@c Function is AC-Unsafe while POSIX says it should be AC-Safe.
@macro acuposix {comments}
!posix\comments\
@end macro

@iftex
@macro twoexp{exp}
@math{2^{{\exp\}}}
@end macro
@end iftex
@ifnottex
@macro twoexp{exp}
2^\exp\
@end macro
@end ifnottex

@c Used by errlist.awk and errnos.awk to generate other files.
@c Note that error values have ABI implications for the Hurd.
@macro errno {err, val, str}
@cindex \str\
@end macro

@end ifclear