| 1 |
#include "EXTERN.h" |
| 2 |
#include "perl.h" |
| 3 |
#include "XSUB.h" |
| 4 |
|
| 5 |
#include <glib.h> |
| 6 |
#include "EVAPI.h" |
| 7 |
|
| 8 |
static GMainContext * |
| 9 |
get_gcontext (SV *context) |
| 10 |
{ |
| 11 |
if (!SvOK (context)) |
| 12 |
return g_main_context_default (); |
| 13 |
|
| 14 |
croak ("only the default context is currently supported."); |
| 15 |
} |
| 16 |
|
| 17 |
static void |
| 18 |
timeout_cb (ev_timer *w, int revents) |
| 19 |
{ |
| 20 |
ev_unloop (EVUNLOOP_ONE); |
| 21 |
} |
| 22 |
|
| 23 |
typedef struct |
| 24 |
{ |
| 25 |
struct ev_io io; |
| 26 |
int *got_events; |
| 27 |
GPollFD *pfd; |
| 28 |
} slot; |
| 29 |
|
| 30 |
static void |
| 31 |
io_cb (ev_io *w, int revents) |
| 32 |
{ |
| 33 |
slot *s = (slot *)w; |
| 34 |
|
| 35 |
s->pfd->revents |= s->pfd->events & |
| 36 |
((revents & EV_READ ? G_IO_IN : 0) |
| 37 |
| (revents & EV_READ ? G_IO_OUT : 0)); |
| 38 |
|
| 39 |
if (s->pfd->revents) |
| 40 |
++*(s->got_events); |
| 41 |
|
| 42 |
ev_unloop (EVUNLOOP_ONE); |
| 43 |
} |
| 44 |
|
| 45 |
static gint |
| 46 |
event_poll_func (GPollFD *fds, guint nfds, gint timeout) |
| 47 |
{ |
| 48 |
dSP; |
| 49 |
// yes, I use C99. If your compiler barfs here, fix it, but don't |
| 50 |
// tell me your compiler vendor was too incompetent to implement |
| 51 |
// the C standard within the last eight years. |
| 52 |
ev_timer to; |
| 53 |
slot slots[nfds]; |
| 54 |
int got_events = 0; |
| 55 |
int n; |
| 56 |
|
| 57 |
for (n = 0; n < nfds; ++n) |
| 58 |
{ |
| 59 |
GPollFD *pfd = fds + n; |
| 60 |
slot *s = slots + n; |
| 61 |
|
| 62 |
pfd->revents = 0; |
| 63 |
|
| 64 |
s->pfd = pfd; |
| 65 |
s->got_events = &got_events; |
| 66 |
|
| 67 |
ev_io_init ( |
| 68 |
&s->io, |
| 69 |
io_cb, |
| 70 |
pfd->fd, |
| 71 |
(pfd->events & G_IO_IN ? EV_READ : 0) |
| 72 |
| (pfd->events & G_IO_OUT ? EV_WRITE : 0) |
| 73 |
); |
| 74 |
ev_io_start (&s->io); |
| 75 |
} |
| 76 |
|
| 77 |
if (timeout >= 0) |
| 78 |
{ |
| 79 |
ev_timer_init (&to, timeout_cb, timeout * 1e-3, 0.); |
| 80 |
ev_timer_start (&to); |
| 81 |
} |
| 82 |
|
| 83 |
ev_loop (0); |
| 84 |
|
| 85 |
if (timeout >= 0) |
| 86 |
ev_timer_stop (&to); |
| 87 |
|
| 88 |
for (n = 0; n < nfds; ++n) |
| 89 |
ev_io_stop (&slots[n].io); |
| 90 |
|
| 91 |
return got_events; |
| 92 |
} |
| 93 |
|
| 94 |
MODULE = Glib::EV PACKAGE = Glib::EV |
| 95 |
|
| 96 |
PROTOTYPES: ENABLE |
| 97 |
|
| 98 |
BOOT: |
| 99 |
{ |
| 100 |
I_EV_API ("Glib::EV"); |
| 101 |
} |
| 102 |
|
| 103 |
long |
| 104 |
install (SV *context) |
| 105 |
CODE: |
| 106 |
{ |
| 107 |
GMainContext *ctx = get_gcontext (context); |
| 108 |
|
| 109 |
RETVAL = (long)g_main_context_get_poll_func (ctx); |
| 110 |
|
| 111 |
g_main_context_set_poll_func (ctx, event_poll_func); |
| 112 |
} |
| 113 |
OUTPUT: |
| 114 |
RETVAL |
| 115 |
|
| 116 |
void |
| 117 |
uninstall (SV *context, long prev_poll_func) |
| 118 |
CODE: |
| 119 |
{ |
| 120 |
GMainContext *ctx = get_gcontext (context); |
| 121 |
|
| 122 |
g_main_context_set_poll_func (ctx, (GPollFunc) prev_poll_func); |
| 123 |
} |
| 124 |
|
| 125 |
|
