| 1 |
#include "EXTERN.h" |
| 2 |
#include "perl.h" |
| 3 |
#include "XSUB.h" |
| 4 |
|
| 5 |
#include <stddef.h> |
| 6 |
|
| 7 |
#include <glib.h> |
| 8 |
#include "EVAPI.h" |
| 9 |
|
| 10 |
static GMainContext * |
| 11 |
get_gcontext (SV *context) |
| 12 |
{ |
| 13 |
if (!SvOK (context)) |
| 14 |
return g_main_context_default (); |
| 15 |
|
| 16 |
croak ("only the default context is currently supported."); |
| 17 |
} |
| 18 |
|
| 19 |
struct econtext |
| 20 |
{ |
| 21 |
GPollFD *pfd; |
| 22 |
ev_io *iow; |
| 23 |
int nfd, afd; |
| 24 |
gint maxpri; |
| 25 |
|
| 26 |
ev_prepare pw; |
| 27 |
ev_timer tw; |
| 28 |
|
| 29 |
GMainContext *gc; |
| 30 |
}; |
| 31 |
|
| 32 |
static void |
| 33 |
timer_cb (EV_P_ ev_timer *w, int revents) |
| 34 |
{ |
| 35 |
/* nop */ |
| 36 |
} |
| 37 |
|
| 38 |
static void |
| 39 |
io_cb (EV_P_ ev_io *w, int revents) |
| 40 |
{ |
| 41 |
GPollFD *pfd = (GPollFD *)w->data; |
| 42 |
|
| 43 |
pfd->revents |= pfd->events & |
| 44 |
((revents & EV_READ ? G_IO_IN : 0) |
| 45 |
| (revents & EV_READ ? G_IO_OUT : 0)); |
| 46 |
|
| 47 |
printf ("ctx rev %d %x:%x\n", w->fd, pfd->events, pfd->revents);//D |
| 48 |
} |
| 49 |
|
| 50 |
static void |
| 51 |
prepare_cb (EV_P_ ev_prepare *w, int revents) |
| 52 |
{ |
| 53 |
struct econtext *ctx = (struct econtext *)(((char *)w) - offsetof (struct econtext, pw)); |
| 54 |
gint timeout; |
| 55 |
int i; |
| 56 |
|
| 57 |
if (ctx->nfd >= 0) |
| 58 |
{ |
| 59 |
for (i = 0; i < ctx->nfd; ++i) |
| 60 |
ev_io_stop (EV_A_ ctx->iow + i); |
| 61 |
|
| 62 |
if (ev_is_active (&ctx->tw)) |
| 63 |
ev_timer_stop (EV_A_ &ctx->tw); |
| 64 |
|
| 65 |
g_main_context_check (ctx->gc, ctx->maxpri, ctx->pfd, ctx->nfd); |
| 66 |
g_main_context_dispatch (ctx->gc); |
| 67 |
|
| 68 |
ctx->nfd = -1; |
| 69 |
} |
| 70 |
|
| 71 |
g_main_context_prepare (ctx->gc, &ctx->maxpri); |
| 72 |
|
| 73 |
while (ctx->afd < (ctx->nfd = g_main_context_query ( |
| 74 |
ctx->gc, |
| 75 |
ctx->maxpri, |
| 76 |
&timeout, |
| 77 |
ctx->pfd, |
| 78 |
ctx->afd)) |
| 79 |
) |
| 80 |
{ |
| 81 |
free (ctx->pfd); |
| 82 |
free (ctx->iow); |
| 83 |
|
| 84 |
ctx->afd = 1; |
| 85 |
while (ctx->afd < ctx->nfd) |
| 86 |
ctx->afd <<= 1; |
| 87 |
|
| 88 |
ctx->pfd = malloc (ctx->afd * sizeof (GPollFD)); |
| 89 |
ctx->iow = malloc (ctx->afd * sizeof (ev_io)); |
| 90 |
} |
| 91 |
|
| 92 |
for (i = 0; i < ctx->nfd; ++i) |
| 93 |
{ |
| 94 |
GPollFD *pfd = ctx->pfd + i; |
| 95 |
ev_io *iow = ctx->iow + i; |
| 96 |
|
| 97 |
pfd->revents = 0; |
| 98 |
|
| 99 |
ev_io_init ( |
| 100 |
iow, |
| 101 |
io_cb, |
| 102 |
pfd->fd, |
| 103 |
(pfd->events & G_IO_IN ? EV_READ : 0) |
| 104 |
| (pfd->events & G_IO_OUT ? EV_WRITE : 0) |
| 105 |
); |
| 106 |
iow->data = (void *)pfd; |
| 107 |
ev_io_start (EV_A_ iow); |
| 108 |
} |
| 109 |
|
| 110 |
if (timeout >= 0) |
| 111 |
{ |
| 112 |
ev_timer_set (&ctx->tw, timeout * 1e-3, 0.); |
| 113 |
ev_timer_start (EV_A_ &ctx->tw); |
| 114 |
} |
| 115 |
} |
| 116 |
|
| 117 |
static struct econtext default_context; |
| 118 |
|
| 119 |
MODULE = EV::Glib PACKAGE = EV::Glib |
| 120 |
|
| 121 |
PROTOTYPES: ENABLE |
| 122 |
|
| 123 |
BOOT: |
| 124 |
{ |
| 125 |
I_EV_API ("EV::Glib"); |
| 126 |
} |
| 127 |
|
| 128 |
long |
| 129 |
install (SV *context) |
| 130 |
CODE: |
| 131 |
{ |
| 132 |
GMainContext *gc = get_gcontext (context); |
| 133 |
struct econtext *ctx = &default_context; |
| 134 |
|
| 135 |
ctx->gc = g_main_context_ref (gc); |
| 136 |
ctx->nfd = -1; |
| 137 |
ctx->afd = 0; |
| 138 |
ctx->iow = 0; |
| 139 |
ctx->pfd = 0; |
| 140 |
|
| 141 |
ev_prepare_init (&ctx->pw, prepare_cb); |
| 142 |
ev_prepare_start (EV_DEFAULT_ &ctx->pw); |
| 143 |
ev_init (&ctx->tw, timer_cb); |
| 144 |
ev_set_priority (&ctx->tw, EV_MINPRI); |
| 145 |
} |
| 146 |
OUTPUT: |
| 147 |
RETVAL |
| 148 |
|
| 149 |
|
| 150 |
|
