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Add documentation for default pthread attribute functions

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Siddhesh Poyarekar 2013-06-15 12:27:40 +05:30
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@ -1,5 +1,9 @@
2013-06-15 Siddhesh Poyarekar <siddhesh@redhat.com>
* manual/threads.texi (Non-POSIX Extensions): New document
node. Document pthread_getattr_default_np and
pthread_setattr_default_np.
* Versions.def (libpthread): Add GLIBC_2.18.
* sysdeps/unix/sysv/linux/i386/nptl/libpthread.abilist: Update.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libpthread.abilist:

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manual/threads.texi
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@ -9,6 +9,8 @@ This chapter describes the @glibcadj{} POSIX Thread implementation.
@menu
* Thread-specific Data:: Support for creating and
managing thread-specific data
* Non-POSIX Extensions:: Additional functions to extend
POSIX Thread functionality
@end menu
@node Thread-specific Data
@ -42,3 +44,41 @@ thread.
Associate the thread-specific @var{value} with @var{key} in the calling thread.
@end table
@node Non-POSIX Extensions
@section Non-POSIX Extensions
In addition to implementing the POSIX API for threads, @theglibc{} provides
additional functions and interfaces to provide functionality not specified in
the standard.
@menu
* Default Thread Attributes:: Setting default attributes for
threads in a process.
@end menu
@node Default Thread Attributes
@subsection Setting Process-wide defaults for thread attributes
@Theglibc{} provides non-standard API functions to set and get the default
attributes used in the creation of threads in a process.
@deftypefun int pthread_getattr_default_np (pthread_attr_t *@var{attr})
Get the default attribute values and set @var{attr} to match. This
function returns @math{0} on success and a non-zero error code on
failure.
@end deftypefun
@deftypefun int pthread_getattr_default_np (pthread_attr_t *@var{attr})
Set the default attribute values to match the values in @var{attr}. The
function returns @math{0} on success and a non-zero error code on failure.
The following error codes are defined for this function:
@table @code
@item EINVAL
At least one of the values in @var{attr} does not qualify as valid for the
attributes or the stack address is set in the attribute.
@item ENOMEM
The system does not have sufficient memory.
@end table
@end deftypefun