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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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PR_FUTEX_HASH_GET_SLOTS(2const) PR_FUTEX_HASH_GET_SLOTS(2const)
PR_FUTEX_HASH_GET_SLOTS - return the size of the private hash
Standard C library (libc, -lc)
#include <linux/prctl.h> /* Definition of PR_* constants */
#include <sys/prctl.h>
int prctl(PR_FUTEX_HASH, PR_FUTEX_HASH_GET_SLOTS);
Return the current size of the private hash.
A value of 0 means that a private hash has not been allocated and
the global hash is in use.
A value >0 specifies the size of the private hash.
On error, -1 is returned, and errno is set to indicate the error.
Linux.
Linux 6.17.
prctl(2), PR_FUTEX_HASH(2const)
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Linux man-pages 6.16 2025-08-19PR_FUTEX_HASH_GET_SLOTS(2const)
Pages that refer to this page: PR_FUTEX_HASH(2const)
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HTML rendering created 2026-01-16 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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