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root |
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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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#include <glib.h> |
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#include "EventAPI.h" |
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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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croak ("only the default context is currently supported."); |
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} |
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struct info { |
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int *got_events; |
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pe_io *w; |
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GPollFD *pfd; |
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}; |
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static void |
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event_timer_cb (pe_event *pe) |
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{ |
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*(int *)(pe->up->ext_data) = -1; |
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} |
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static void |
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event_io_cb (pe_event *pe) |
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{ |
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U16 got = ((pe_ioevent *)pe)->got; |
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struct info *i = (struct info *)(pe->up->ext_data); |
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i->pfd->revents |= i->pfd->events & |
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( (got & PE_R ? G_IO_IN : 0) |
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| (got & PE_W ? G_IO_OUT : 0) |
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| (got & PE_E ? G_IO_PRI : 0) |
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); |
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if (i->pfd->revents) |
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*(i->got_events)++; |
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} |
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static gint |
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event_poll_func (GPollFD *fds, guint nfds, gint timeout) |
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{ |
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dSP; |
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// yes, I use C99. If your compiler barfs here, fix it, but don't |
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// tell me your compiler vendor was too incompetent to implement |
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// the C standard within the last six years. |
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struct info info[nfds]; |
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pe_timer *w_timeout = 0; |
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int got_events = 0, got_timeout = 0; |
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int n; |
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for (n = 0; n < nfds; n++) |
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{ |
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GPollFD *pfd = fds + n; |
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struct info *i = info + n; |
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i->got_events = &got_events; |
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pe_io *w = i->w = GEventAPI->new_io (0, 0); |
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w->base.callback = (void *)event_io_cb; |
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w->base.ext_data = (void *)i; |
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w->fd = pfd->fd; |
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w->poll = (pfd->events & G_IO_IN ? PE_R : 0) |
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| (pfd->events & G_IO_OUT ? PE_W : 0) |
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| (pfd->events & G_IO_PRI ? PE_E : 0); |
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pfd->revents = 0; |
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GEventAPI->start ((pe_watcher *)w, 0); |
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} |
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if (timeout >= 0) |
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{ |
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w_timeout = GEventAPI->new_timer (0, 0); |
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w_timeout->base.callback = (void *)event_timer_cb; |
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w_timeout->base.ext_data = (void *)&got_timeout; |
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w_timeout->tm.at = GEventAPI->NVtime () + timeout * 0.001; |
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} |
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do { |
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PUSHMARK (SP); |
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call_pv ("Event::one_event", G_DISCARD | G_EVAL); |
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} while (!got_events && !got_timeout); |
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if (w_timeout) |
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GEventAPI->cancel ((pe_watcher *)w_timeout); |
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for (n = 0; n < nfds; n++) |
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GEventAPI->cancel ((pe_watcher *)info[n].w); |
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if (SvOK (ERRSV)) |
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croak (0); |
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if (got_timeout) |
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return 0; |
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return got_events; |
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} |
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MODULE = Glib::Event PACKAGE = Glib::Event |
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PROTOTYPES: ENABLE |
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BOOT: |
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{ |
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I_EVENT_API ("Glib::Event"); |
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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 *ctx = get_gcontext (context); |
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RETVAL = (long)g_main_context_get_poll_func (ctx); |
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g_main_context_set_poll_func (ctx, event_poll_func); |
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} |
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OUTPUT: |
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RETVAL |
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void |
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uninstall (SV *context, long prev_poll_func) |
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CODE: |
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{ |
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GMainContext *ctx = get_gcontext (context); |
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g_main_context_set_poll_func (ctx, (GPollFunc) prev_poll_func); |
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} |
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