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Improve pthread_attr_get_np() by enabling it to return thread's real stack

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address instead of specified by pthread_attr_t passed to pthread_create().

Suggested by:	deischen
This commit is contained in:
Alexey Zelkin 2003-02-03 10:08:45 +00:00
parent 8dad14b11b
commit 618a8b4df0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=110276
1 changed files with 9 additions and 1 deletions
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10
lib/libc_r/uthread/uthread_attr_get_np.c
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@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2002 Alexey Zelkin <phantom@FreeBSD.org> * Copyright (c) 2002,2003 Alexey Zelkin <phantom@FreeBSD.org>
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
@ -45,5 +45,13 @@ _pthread_attr_get_np(pthread_t pid, pthread_attr_t *dst)
return (ret); return (ret);
memcpy(*dst, &pid->attr, sizeof(struct pthread_attr)); memcpy(*dst, &pid->attr, sizeof(struct pthread_attr));
/*
* Special case, if stack address was not provided by caller
* of pthread_create(), then return address allocated internally
*/
if ((*dst)->stackaddr_attr == NULL)
(*dst)->stackaddr_attr = pid->stack;
return (0); return (0);
} }