NAME

Coro::MakeMaker - MakeMaker glue for the XS-level Coro API

SYNOPSIS

This allows you to control coroutines from C/XS.

DESCRIPTION

For optimal performance, hook into Coro at the C-level. You'll need to make changes to your Makefile.PL and add code to your xs / c file(s).

WARNING

When you hook in at the C-level you can get a huge performance gain, but you also reduce the chances that your code will work unmodified with newer versions of perl or Coro. This may or may not be a problem. Just be aware, and set your expectations accordingly.

HOW TO

Makefile.PL

            

              
              
use Coro::MakeMaker qw(coro_args);
# ... set up %args ...
WriteMakefile (coro_args (%args));
            
          

XS

            

              
              
#include "CoroAPI.h"
BOOT:
  I_CORO_API ("YourModule");
            
          

API

This is just a small overview - read the Coro/CoroAPI.h header file in the distribution, and check the examples in EV/ and Event/*, or as a more real-world example, the Deliantra game server (which uses Coro::MakeMaker).

You can also drop me a mail if you run into any trouble.

            

              
              
#define CORO_TRANSFER(prev,next) /* transfer from prev to next */
#define CORO_SCHEDULE            /* like Coro::schedule */
#define CORO_CEDE                /* like Coro::cede */
#define CORO_CEDE_NOTSELF        /* like Coro::cede_notself */
#define CORO_READY(coro)         /* like $coro->ready */
#define CORO_IS_READY(coro)      /* like $coro->is_ready */
#define CORO_NREADY              /* # of procs in ready queue */
#define CORO_CURRENT             /* returns $Coro::current */
#define CORO_THROW               /* exception pending? */
#define CORO_READYHOOK           /* hook for event libs, see Coro::EV */
/* C-level coroutine struct, opaque, not used much */
struct coro;
/* used for schedule-like-function prepares */
struct coro_transfer_args
{
  struct coro *prev, *next;
};
/* this is the per-perl-coro slf frame info */
struct CoroSLF
{
  void (*prepare) (pTHX_ struct coro_transfer_args *ta); /* 0 means not yet initialised */
  int (*check) (pTHX_ struct CoroSLF *frame);
  void *data; /* for use by prepare/check/destroy */
  void (*destroy) (pTHX_ struct CoroSLF *frame);
};
/* needs to fill in the *frame */
typedef void (*coro_slf_cb) (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items);
#define CORO_SV_STATE(coro)      /* returns the internal struct coro * */
#define CORO_EXECUTE_SLF(cv,init,ax) /* execute a schedule-like function */
#define CORO_EXECUTE_SLF_XS(init) /* SLF in XS, see e.g. Coro::EV */
/* called on enter/leave */
typedef void (*coro_enterleave_hook) (pTHX_ void *arg);
#define CORO_ENTERLEAVE_HOOK(coro,enter,enter_arg,leave,leave_arg)   /* install an XS-level enter/leave hook */
#define CORO_ENTERLEAVE_UNHOOK(coro,enter,leave)                     /* remove an XS-level enter/leave hook */
#define CORO_ENTERLEAVE_SCOPE_HOOK(enter,enter_arg,leave,leave_arg)  /* install an XS-level enter/leave hook for the corrent scope */
            
          

AUTHOR/SUPPORT/CONTACT

            

              
              
Marc A. Lehmann <schmorp@schmorp.de>
http://software.schmorp.de/pkg/Coro.html