• Anonymouse (15/15) May 01 2019 Is there a way of setting the process/thread name that's neater
• Arun Chandrasekaran (20/35) May 02 2019 prctl can set and get the process name and thread name on Linux. You

Anonymouse <asdf asdf.net> writes:

Is there a way of setting the process/thread name that's neater 
than this?

import core.sys.posix.pthread;

extern(C) int pthread_setname_np(pthread_t, const char*);

void main()
{
     import std.string : toStringz;
     pthread_setname_np(pthread_self(), toStringz("thread_name"));
     // ...
}

It seems to work, but it also seems peculiar that 
pthread_setname_np isn't in core.sys.posix.pthread with the rest. 
Why is this? Is there an easier way? Thread.getThis().name 
doesn't seem to be it.


https://forum.dlang.org/thread/gudwwmmdcqrfhbduxruq forum.dlang.org

Arun Chandrasekaran <aruncxy gmail.com> writes:

On Wed, May 1, 2019 at 7:50 PM Anonymouse via Digitalmars-d-learn
<digitalmars-d-learn puremagic.com> wrote:
 Is there a way of setting the process/thread name that's neater
 than this?

 import core.sys.posix.pthread;

 extern(C) int pthread_setname_np(pthread_t, const char*);

 void main()
 {
      import std.string : toStringz;
      pthread_setname_np(pthread_self(), toStringz("thread_name"));
      // ...
 }

 It seems to work, but it also seems peculiar that
 pthread_setname_np isn't in core.sys.posix.pthread with the rest.
 Why is this? Is there an easier way? Thread.getThis().name
 doesn't seem to be it.


 https://forum.dlang.org/thread/gudwwmmdcqrfhbduxruq forum.dlang.org

prctl can set and get the process name and thread name on Linux. You
can do something like this:

import core.sys.linux.sys.prctl;
byte[16] name = cast(byte[]) "Blabla";
name[name.length-1] = 0;
prctl(PR_SET_NAME, cast(size_t) name.ptr, cast(size_t) null,
cast(size_t) null, cast(size_t) null);

// to confirm it works fine
byte[16] newname;
prctl(PR_GET_NAME, cast(size_t) newname.ptr, cast(size_t) null,
cast(size_t) null, cast(size_t) null);
int i;
foreach (b; newname)
{
        assert(b == name[i]);
            i++;
}
writeln(cast(string) newname);