PR_SET_NAME(2const)

NAME
PR_SET_NAME, PR_GET_NAME - operations on a process or thread

LIBRARY
Standard C library (libc, -lc)

SYNOPSIS
#include <linux/prctl.h>  /* Definition of PR_* constants */
#include <sys/prctl.h>

int prctl(PR_SET_NAME, char name[16]);
int prctl(PR_GET_NAME, const char name[16]);

DESCRIPTION

PR_SET_NAME
    Set the name of the calling thread, using the value in the location pointed to by name.

    The name can be up to 16 bytes long, including the terminating null byte. If the length of the string, including the terminating null byte, exceeds 16 bytes, the string is silently truncated.

PR_GET_NAME (since Linux 2.6.11)
    Return the name of the calling thread, in the buffer pointed to by name. The returned string will be null-terminated.

This is the same attribute that can be set via pthread_setname_np(3) and retrieved using pthread_getname_np(3).

RETURN VALUE
On success, 0 is returned. On error, -1 is returned, and errno is set to indicate the error.

ERRORS

EFAULT
    name is an invalid address.

FILES

/proc/self/task/tid/comm
    The attribute is likewise accessible via this file (see proc_pid_comm(5)), where tid is the thread ID of the calling thread, as returned by gettid(2).

STANDARDS
Linux.

HISTORY

PR_SET_NAME
    Linux 2.6.9.

PR_GET_NAME
    Linux 2.6.11.

SEE ALSO
prctl(2), pthread_setname_np(3), pthread_getname_np(3), proc_pid_comm(5)