pthread_attr_set_getstacksize(3) [osx man page]
PTHREAD_ATTR(3) BSD Library Functions Manual PTHREAD_ATTR(3) NAME
pthread_attr_getstacksize, pthread_attr_setstacksize -- thread attribute operations SYNOPSIS
#include <pthread.h> int pthread_attr_getstacksize(const pthread_attr_t *restrict attr, size_t *restrict stacksize); int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize); DESCRIPTION
Thread attributes are used to specify parameters to pthread_create(). One attribute object can be used in multiple calls to pthread_create(), with or without modifications between calls. The functions pthread_attr_setstacksize() and pthread_attr_getstacksize(), respectively, set and get the size of the stack that is to be cre- ated for the new thread. The stack size attribute is set within the attr argument, which can subsequently be used as an argument to pthread_create(). RETURN VALUES
If successful, these functions return 0. Otherwise, an error number is returned to indicate the error. pthread_attr_getstacksize() returns the stacksize attribute value in stacksize if successful. ERRORS
pthread_attr_getstacksize() will fail if: [EINVAL] Invalid value for attr. pthread_attr_setstacksize() will fail if: [EINVAL] Invalid value for attr. [EINVAL] stacksize is less than PTHREAD_STACK_MIN. [EINVAL] stacksize is not a multiple of the system page size. SEE ALSO
pthread_create(3), pthread_attr_init(3), pthread_attr_setstackaddr(3) STANDARDS
pthread_attr_setstacksize(), pthread_attr_getstacksize() conform to ISO/IEC 9945-1:1996 (``POSIX.1'') BSD
December 31, 2007 BSD
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pthread_attr_getstacksize(3C) Standard C Library Functions pthread_attr_getstacksize(3C) NAME
pthread_attr_getstacksize, pthread_attr_setstacksize - get or set stacksize attribute SYNOPSIS
cc -mt [ flag... ] file... -lpthread [ library... ] #include <pthread.h> int pthread_attr_getstacksize(const pthread_attr_t *restrict attr, size_t *restrict stacksize); int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize); DESCRIPTION
The functions pthread_attr_setstacksize() and pthread_attr_getstacksize(), respectively, set and get the thread creation stacksize attribute in the attr object. The stacksize attribute defines the minimum stack size (in bytes) allocated for the created threads stack. When the stacksize argument is NULL, the default stack size becomes 1 megabyte for 32-bit processes and 2 megabytes for 64-bit processes. RETURN VALUES
Upon successful completion, pthread_attr_setstacksize() and pthread_attr_getstacksize() return a value of 0. Otherwise, an error number is returned to indicate the error. The pthread_attr_getstacksize() function stores the stacksize attribute value in stacksize if successful. ERRORS
The pthread_attr_setstacksize() or pthread_attr_getstacksize() function may fail if: EINVAL attr or stacksize is invalid. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
pthread_attr_init(3C), pthread_attr_setstackaddr(3C), pthread_attr_setdetachstate(3C), pthread_create(3C), attributes(5), standards(5) SunOS 5.11 23 Mar 2005 pthread_attr_getstacksize(3C)