… | |
… | |
6 | #include <string.h> |
6 | #include <string.h> |
7 | |
7 | |
8 | #include "EventAPI.h" |
8 | #include "EventAPI.h" |
9 | #include "../Coro/CoroAPI.h" |
9 | #include "../Coro/CoroAPI.h" |
10 | |
10 | |
11 | #define CD_CORO 0 |
11 | #define CD_WAIT 0 /* wait queue */ |
12 | #define CD_TYPE 1 |
12 | #define CD_TYPE 1 |
13 | #define CD_OK 2 |
13 | #define CD_OK 2 |
14 | #define CD_PRIO 3 /* hardcoded in Coro::Event */ |
14 | |
15 | #define CD_HITS 4 /* hardcoded in Coro::Event */ |
15 | #define CD_HITS 4 /* hardcoded in Coro::Event */ |
16 | #define CD_GOT 5 /* hardcoded in Coro::Event, Coro::Handle */ |
16 | #define CD_GOT 5 /* hardcoded in Coro::Event, Coro::Handle */ |
17 | #define CD_MAX 5 |
17 | #define CD_MAX 5 |
18 | |
18 | |
19 | static void |
19 | static void |
20 | coro_std_cb (pe_event *pe) |
20 | coro_std_cb (pe_event *pe) |
21 | { |
21 | { |
22 | AV *priv = (AV *)pe->ext_data; |
22 | AV *priv = (AV *)pe->ext_data; |
23 | IV type = SvIV (AvARRAY (priv)[CD_TYPE]); |
23 | IV type = SvIV (AvARRAY (priv)[CD_TYPE]); |
|
|
24 | AV *cd_wait; |
24 | SV **cd_coro; |
25 | SV *coro; |
25 | |
26 | |
26 | SvIV_set (AvARRAY (priv)[CD_PRIO], pe->prio); |
|
|
27 | SvIV_set (AvARRAY (priv)[CD_HITS], pe->hits); |
27 | SvIV_set (AvARRAY (priv)[CD_HITS], pe->hits); |
28 | |
|
|
29 | if (type == 1) |
|
|
30 | SvIV_set (AvARRAY (priv)[CD_GOT], ((pe_ioevent *)pe)->got); |
28 | SvIV_set (AvARRAY (priv)[CD_GOT], type ? ((pe_ioevent *)pe)->got : 0); |
31 | |
|
|
32 | GEventAPI->stop (pe->up, 0); |
|
|
33 | |
29 | |
34 | AvARRAY (priv)[CD_OK] = &PL_sv_yes; |
30 | AvARRAY (priv)[CD_OK] = &PL_sv_yes; |
35 | |
31 | |
36 | cd_coro = &AvARRAY(priv)[CD_CORO]; |
32 | cd_wait = (AV *)AvARRAY(priv)[CD_WAIT]; |
37 | if (*cd_coro != &PL_sv_undef) |
33 | if ((coro = av_shift (cd_wait))) |
38 | { |
34 | { |
39 | AvARRAY (priv)[CD_OK] = &PL_sv_yes; |
35 | if (av_len (cd_wait) < 0) |
|
|
36 | GEventAPI->stop (pe->up, 0); |
|
|
37 | |
40 | CORO_READY (*cd_coro); |
38 | CORO_READY (coro); |
41 | SvREFCNT_dec (*cd_coro); |
39 | SvREFCNT_dec (coro); |
42 | *cd_coro = &PL_sv_undef; |
|
|
43 | } |
40 | } |
44 | } |
41 | } |
45 | |
42 | |
46 | static void |
43 | static void |
47 | asynccheck_hook (void *data) |
44 | asynccheck_hook (void *data) |
48 | { |
45 | { |
49 | /* ceding from C means allocating a stack, but we assume this is a rare case */ |
46 | /* this loops as long as we have _other_ coros with the same or higher priority */ |
|
|
47 | while (CORO_NREADY && CORO_CEDE) |
|
|
48 | ; |
|
|
49 | } |
|
|
50 | |
|
|
51 | static double |
|
|
52 | prepare_hook (void *data) |
|
|
53 | { |
|
|
54 | /* this yields once to another coro with any priority */ |
50 | while (CORO_NREADY) |
55 | if (CORO_NREADY) |
51 | CORO_CEDE; |
56 | { |
|
|
57 | CORO_CEDE_NOTSELF; |
|
|
58 | /* |
|
|
59 | * timers might have changed, and Event fails to notice this |
|
|
60 | * so we have to assume the worst. If Event didn't have that bug, |
|
|
61 | * we would only need to do this if CORO_NREADY is != 0 now. |
|
|
62 | */ |
|
|
63 | return 0.; |
|
|
64 | } |
|
|
65 | else |
|
|
66 | return 85197.73; /* this is as good as any value, but it factors badly with common values */ |
52 | } |
67 | } |
53 | |
68 | |
54 | MODULE = Coro::Event PACKAGE = Coro::Event |
69 | MODULE = Coro::Event PACKAGE = Coro::Event |
55 | |
70 | |
56 | PROTOTYPES: ENABLE |
71 | PROTOTYPES: ENABLE |
… | |
… | |
59 | { |
74 | { |
60 | I_EVENT_API ("Coro::Event"); |
75 | I_EVENT_API ("Coro::Event"); |
61 | I_CORO_API ("Coro::Event"); |
76 | I_CORO_API ("Coro::Event"); |
62 | |
77 | |
63 | GEventAPI->add_hook ("asynccheck", (void *)asynccheck_hook, 0); |
78 | GEventAPI->add_hook ("asynccheck", (void *)asynccheck_hook, 0); |
|
|
79 | GEventAPI->add_hook ("prepare", (void *)prepare_hook, 0); |
64 | } |
80 | } |
65 | |
81 | |
66 | void |
82 | void |
67 | _install_std_cb (SV *self, int type) |
83 | _install_std_cb (SV *self, int type) |
68 | CODE: |
84 | CODE: |
… | |
… | |
74 | |
90 | |
75 | { |
91 | { |
76 | AV *priv = newAV (); |
92 | AV *priv = newAV (); |
77 | SV *rv = newRV_noinc ((SV *)priv); |
93 | SV *rv = newRV_noinc ((SV *)priv); |
78 | |
94 | |
79 | av_extend (priv, CD_MAX); |
95 | av_fill (priv, CD_MAX); |
80 | AvARRAY (priv)[CD_CORO] = &PL_sv_undef; |
96 | AvARRAY (priv)[CD_WAIT] = (SV *)newAV (); /* badbad */ |
81 | AvARRAY (priv)[CD_TYPE] = newSViv (type); |
97 | AvARRAY (priv)[CD_TYPE] = newSViv (type); |
82 | AvARRAY (priv)[CD_OK ] = &PL_sv_no; |
98 | AvARRAY (priv)[CD_OK ] = &PL_sv_no; |
83 | AvARRAY (priv)[CD_PRIO] = newSViv (0); |
|
|
84 | AvARRAY (priv)[CD_HITS] = newSViv (0); |
99 | AvARRAY (priv)[CD_HITS] = newSViv (0); |
85 | AvARRAY (priv)[CD_GOT ] = newSViv (0); |
100 | AvARRAY (priv)[CD_GOT ] = newSViv (0); |
86 | SvREADONLY_on (priv); |
101 | SvREADONLY_on (priv); |
87 | |
102 | |
88 | w->callback = coro_std_cb; |
103 | w->callback = coro_std_cb; |
… | |
… | |
105 | { |
120 | { |
106 | AvARRAY (priv)[CD_OK] = &PL_sv_no; |
121 | AvARRAY (priv)[CD_OK] = &PL_sv_no; |
107 | XSRETURN_NO; /* got an event */ |
122 | XSRETURN_NO; /* got an event */ |
108 | } |
123 | } |
109 | |
124 | |
|
|
125 | av_push ((AV *)AvARRAY (priv)[CD_WAIT], SvREFCNT_inc (CORO_CURRENT)); |
|
|
126 | |
110 | if (!w->running) |
127 | if (!w->running) |
111 | GEventAPI->start (w, 1); |
128 | GEventAPI->start (w, 1); |
112 | |
|
|
113 | if (AvARRAY (priv)[CD_CORO] == &PL_sv_undef) |
|
|
114 | AvARRAY (priv)[CD_CORO] = SvREFCNT_inc (CORO_CURRENT); |
|
|
115 | else if (AvARRAY (priv)[CD_CORO] != CORO_CURRENT) |
|
|
116 | croak ("Coro::Event::next can only be called from a single coroutine at a time, caught"); |
|
|
117 | |
129 | |
118 | XSRETURN_YES; /* schedule */ |
130 | XSRETURN_YES; /* schedule */ |
119 | } |
131 | } |
120 | |
132 | |
|
|
133 | SV * |
|
|
134 | _event (SV *self) |
|
|
135 | CODE: |
|
|
136 | { |
|
|
137 | if (GIMME_V == G_VOID) |
|
|
138 | XSRETURN_EMPTY; |
|
|
139 | |
|
|
140 | { |
|
|
141 | pe_watcher *w = GEventAPI->sv_2watcher (self); |
|
|
142 | AV *priv = (AV *)w->ext_data; |
|
|
143 | |
|
|
144 | RETVAL = newRV_inc ((SV *)priv); |
|
|
145 | } |
|
|
146 | } |
|
|
147 | OUTPUT: |
|
|
148 | RETVAL |
|
|
149 | |