posix_spawnattr_setstackmax()

Synopsis:

#include <spawn.h>

int posix_spawnattr_setstackmax(
       posix_spawnattr_t *attrp,
       uint32_t size);

Arguments:

attrp: A pointer to the spawn attributes object that you want to modify.
size: The maximum stack size that you want to use for the spawned processes

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The posix_spawnattr_setstackmax() function sets the maximum stack size attribute in the given spawn attributes object. If you don't specify a maximum, the stack for the child's main thread will be the default, 512 KB. You must have already initialized the spawn attributes object by calling posix_spawnattr_init().

This setting takes effect only if the POSIX_SPAWN_SETSTACKMAX flag is set in the spawn attributes; to set this flag, call posix_spawnattr_setxflags().

To retrieve the value of this attribute, call posix_spawnattr_getstackmax().

For more information about spawn attributes, see the entry for posix_spawn().

Note: This function is a QNX Neutrino extension.

Returns:

EOK: Success.
EINVAL: The attrp pointer does not refer to a valid attribute structure.

Classification:

QNX Neutrino

Safety:
Cancellation point	No
Interrupt handler	Yes
Signal handler	Yes
Thread	Yes