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New API to set default thread attributes

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This patch introduces two new convenience functions to set the default
thread attributes used for creating threads.  This allows a programmer
to set the default thread attributes just once in a process and then
run pthread_create without additional attributes.
This commit is contained in:
Siddhesh Poyarekar
2013-06-15 12:24:15 +05:30
parent 601eb33deb
commit 61dd6208fb
49 changed files with 817 additions and 13 deletions
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10
nptl/pthread_attr_getstacksize.c
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@ -30,9 +30,17 @@ __pthread_attr_getstacksize (attr, stacksize)
assert (sizeof (*attr) >= sizeof (struct pthread_attr));
iattr = (struct pthread_attr *) attr;
size_t size = iattr->stacksize;
/* If the user has not set a stack size we return what the system
will use as the default. */
*stacksize = iattr->stacksize ?: __default_pthread_attr.stacksize;
if (size == 0)
{
lll_lock (__default_pthread_attr_lock, LLL_PRIVATE);
size = __default_pthread_attr.stacksize;
lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE);
}
*stacksize = size;
return 0;
}