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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 <stddef.h> |
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|
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#include <glib.h> |
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#include "EVAPI.h" |
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|
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static GMainContext * |
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get_gcontext (SV *context) |
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{ |
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if (!SvOK (context)) |
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return g_main_context_default (); |
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|
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croak ("only the default context is currently supported."); |
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} |
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|
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struct econtext |
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{ |
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GPollFD *pfd; |
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ev_io *iow; |
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int nfd, afd; |
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gint maxpri; |
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|
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ev_prepare pw; |
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ev_timer tw; |
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|
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GMainContext *gc; |
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}; |
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|
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static void |
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timer_cb (EV_P_ ev_timer *w, int revents) |
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{ |
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/* nop */ |
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} |
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|
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static void |
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io_cb (EV_P_ ev_io *w, int revents) |
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{ |
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GPollFD *pfd = (GPollFD *)w->data; |
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|
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pfd->revents |= pfd->events & |
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((revents & EV_READ ? G_IO_IN : 0) |
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| (revents & EV_READ ? G_IO_OUT : 0)); |
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} |
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|
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static void |
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prepare_cb (EV_P_ ev_prepare *w, int revents) |
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{ |
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struct econtext *ctx = (struct econtext *)(((char *)w) - offsetof (struct econtext, pw)); |
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gint timeout; |
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int i; |
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|
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if (ctx->nfd >= 0) |
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{ |
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for (i = 0; i < ctx->nfd; ++i) |
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ev_io_stop (EV_A_ ctx->iow + i); |
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|
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if (ev_is_active (&ctx->tw)) |
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ev_timer_stop (EV_A_ &ctx->tw); |
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|
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g_main_context_check (ctx->gc, ctx->maxpri, ctx->pfd, ctx->nfd); |
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g_main_context_dispatch (ctx->gc); |
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|
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ctx->nfd = -1; |
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} |
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|
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g_main_context_prepare (ctx->gc, &ctx->maxpri); |
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|
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while (ctx->afd < (ctx->nfd = g_main_context_query ( |
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ctx->gc, |
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ctx->maxpri, |
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&timeout, |
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ctx->pfd, |
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ctx->afd)) |
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) |
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{ |
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free (ctx->pfd); |
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free (ctx->iow); |
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|
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ctx->afd = 1; |
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while (ctx->afd < ctx->nfd) |
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ctx->afd <<= 1; |
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|
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ctx->pfd = malloc (ctx->afd * sizeof (GPollFD)); |
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ctx->iow = malloc (ctx->afd * sizeof (ev_io)); |
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} |
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|
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for (i = 0; i < ctx->nfd; ++i) |
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{ |
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GPollFD *pfd = ctx->pfd + i; |
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ev_io *iow = ctx->iow + i; |
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|
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pfd->revents = 0; |
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|
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ev_io_init ( |
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iow, |
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io_cb, |
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pfd->fd, |
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(pfd->events & G_IO_IN ? EV_READ : 0) |
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| (pfd->events & G_IO_OUT ? EV_WRITE : 0) |
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); |
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iow->data = (void *)pfd; |
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ev_io_start (EV_A_ iow); |
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} |
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|
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if (timeout >= 0) |
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{ |
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ev_timer_set (&ctx->tw, timeout * 1e-3, 0.); |
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ev_timer_start (EV_A_ &ctx->tw); |
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} |
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} |
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|
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static struct econtext default_context; |
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|
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MODULE = EV::Glib PACKAGE = EV::Glib |
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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_EV_API ("EV::Glib"); |
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} |
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|
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long |
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install (SV *context) |
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CODE: |
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{ |
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GMainContext *gc = get_gcontext (context); |
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struct econtext *ctx = &default_context; |
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|
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ctx->gc = g_main_context_ref (gc); |
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ctx->nfd = -1; |
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ctx->afd = 0; |
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ctx->iow = 0; |
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ctx->pfd = 0; |
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|
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ev_prepare_init (&ctx->pw, prepare_cb); |
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ev_prepare_start (EV_DEFAULT_ &ctx->pw); |
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ev_init (&ctx->tw, timer_cb); |
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ev_set_priority (&ctx->tw, EV_MINPRI); |
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} |
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OUTPUT: |
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RETVAL |
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|
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|
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|
