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#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
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|
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#include <string.h> |
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|
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#include "EventAPI.h" |
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#include "../Coro/CoroAPI.h" |
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|
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#define CD_CORO 0 |
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#define CD_TYPE 1 |
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#define CD_OK 2 |
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#define CD_GOT 3 /* hardcoded in Coro::Event, Coro::Handle */ |
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#define CD_MAX 3 |
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/* no support for hits and prio so far. */ |
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|
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#define EV_CLASS "Coro::Event" |
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|
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static pe_idle *scheduler; |
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static int do_schedule; |
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|
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#define NEED_SCHEDULE if (!do_schedule) \ |
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{ \ |
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do_schedule = 1; \ |
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GEventAPI->now ((pe_watcher *)scheduler); \ |
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} |
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|
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static void |
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coro_std_cb(pe_event *pe) |
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{ |
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AV *priv = (AV *)SvRV ((SV *)pe->ext_data); |
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IV type = SvIV (*av_fetch (priv, CD_TYPE, 1)); |
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SV *cd_coro = *av_fetch (priv, CD_CORO, 1); |
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|
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if (type == 1) |
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av_store (priv, CD_GOT, newSViv (((pe_ioevent *)pe)->got)); |
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|
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if (SvROK (cd_coro)) |
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{ |
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CORO_READY (cd_coro); |
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av_store (priv, CD_CORO, &PL_sv_undef); |
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NEED_SCHEDULE; |
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} |
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else |
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{ |
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av_store (priv, CD_OK, &PL_sv_yes); |
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GEventAPI->stop (pe->up, 0); |
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} |
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} |
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|
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static void |
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scheduler_cb(pe_event *pe) |
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{ |
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while (CORO_NREADY) |
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CORO_CEDE; |
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|
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do_schedule = 0; |
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} |
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|
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MODULE = Coro::Event PACKAGE = Coro::Event |
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|
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PROTOTYPES: ENABLE |
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|
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BOOT: |
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{ |
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I_EVENT_API("Coro::Event"); |
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I_CORO_API ("Coro::Event"); |
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|
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/* create a fake idle handler (we only ever call now) */ |
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scheduler = GEventAPI->new_idle (0, 0); |
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scheduler->base.callback = scheduler_cb; |
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scheduler->base.prio = 4; /* StarvePrio(?) */ |
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scheduler->min_interval = newSVnv (0); |
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scheduler->max_interval = newSVnv (0); |
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GEventAPI->stop ((pe_watcher *)scheduler, 0); |
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} |
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|
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void |
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_install_std_cb(self,type) |
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SV * self |
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int type |
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CODE: |
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pe_watcher *w = GEventAPI->sv_2watcher (self); |
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AV *priv = newAV (); |
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SV *rv = newRV_noinc ((SV *)priv); |
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|
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av_extend (priv, CD_MAX); |
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av_store (priv, CD_TYPE, newSViv (type)); |
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|
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w->callback = coro_std_cb; |
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w->ext_data = rv; |
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|
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hv_store ((HV *)SvRV (self), |
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EV_CLASS, strlen (EV_CLASS), |
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rv, 0); |
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|
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void |
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_next(self) |
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SV * self |
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CODE: |
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pe_watcher *w = GEventAPI->sv_2watcher (self); |
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AV *priv = (AV *)SvRV ((SV *)w->ext_data); |
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|
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if (SvOK (*av_fetch (priv, CD_CORO, 1))) |
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croak ("only one coroutine can wait for an event"); |
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|
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if (!w->running) |
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GEventAPI->start (w, 1); |
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|
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if (*av_fetch (priv, CD_OK, 1) == &PL_sv_yes) |
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{ |
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av_store (priv, CD_OK, &PL_sv_no); |
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XSRETURN_NO; |
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} |
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else |
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{ |
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av_store (priv, CD_CORO, SvREFCNT_inc (CORO_CURRENT)); |
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XSRETURN_YES; |
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} |
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