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/cvs/Coro-Mysql/Mysql.xs
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Comparing Coro-Mysql/Mysql.xs (file contents):
Revision 1.3 by root, Sat Jun 20 20:43:44 2009 UTC vs.
Revision 1.7 by root, Thu Feb 17 02:05:15 2011 UTC

… …
6 6
7#include "EXTERN.h" 7#include "EXTERN.h"
8#include "perl.h" 8#include "perl.h"
9#include "XSUB.h" 9#include "XSUB.h"
10 10
11#if HAVE_EV
12# include "EVAPI.h"
13# include "CoroAPI.h"
14#endif
15
11#define IN_DESTRUCT PL_dirty 16#define IN_DESTRUCT PL_dirty
12 17
13typedef U16 uint16; 18typedef U16 uint16;
14 19
15/* cached function gv's */ 20/* cached function gv's */
16static CV *readable, *writable; 21static CV *readable, *writable;
22static int use_ev;
17 23
18#include "violite.h" 24#include "violite.h"
19 25
20#define DESC_OFFSET 22 26#define DESC_OFFSET 22
21 27
22#define CoMy_MAGIC 0x436f4d79 28#define CoMy_MAGIC 0x436f4d79
23 29
24typedef struct { 30typedef struct {
25 int magic; 31 int magic;
26 SV *corosocket; 32 SV *corohandle_sv, *corohandle;
27 int bufofs, bufcnt; 33 int bufofs, bufcnt;
34#if HAVE_EV
35 ev_io rw, ww;
36#endif
28 char buf[VIO_READ_BUFFER_SIZE]; 37 char buf[VIO_READ_BUFFER_SIZE];
29} ourdata; 38} ourdata;
30 39
31#define OURDATAPTR (*((ourdata **)((vio)->desc + DESC_OFFSET))) 40#define OURDATAPTR (*((ourdata **)((vio)->desc + DESC_OFFSET)))
32 41
33static int 42static int
34our_read (Vio *vio, gptr p, int len) 43our_read (Vio *vio, xgptr p, int len)
35{ 44{
36 ourdata *our = OURDATAPTR; 45 ourdata *our = OURDATAPTR;
37 46
38 if (!our->bufcnt) 47 if (!our->bufcnt)
39 { 48 {
… …
47 rd = recv (vio->sd, our->buf, sizeof (our->buf), 0); 56 rd = recv (vio->sd, our->buf, sizeof (our->buf), 0);
48 57
49 if (rd >= 0 || errno != EAGAIN) 58 if (rd >= 0 || errno != EAGAIN)
50 break; 59 break;
51 60
61#if HAVE_EV
62 if (use_ev)
52 { 63 {
64 our->rw.data = (void *)sv_2mortal (SvREFCNT_inc (CORO_CURRENT));
65 ev_io_start (EV_DEFAULT_UC, &(our->rw));
66 CORO_SCHEDULE;
67 ev_io_stop (EV_DEFAULT_UC, &(our->rw)); /* avoids races */
68 }
69 else
70#endif
71 {
53 dSP; 72 dSP;
54 PUSHMARK (SP); 73 PUSHMARK (SP);
55 XPUSHs (our->corosocket); 74 XPUSHs (our->corohandle);
56 PUTBACK; 75 PUTBACK;
57 call_sv ((SV *)readable, G_VOID | G_DISCARD); 76 call_sv ((SV *)readable, G_VOID | G_DISCARD);
58 } 77 }
59 } 78 }
60 79
61 if (rd <= 0) 80 if (rd <= 0)
62 return rd; 81 return rd;
63 82
… …
74 93
75 return len; 94 return len;
76} 95}
77 96
78static int 97static int
79our_write (Vio *vio, const gptr p, int len) 98our_write (Vio *vio, const xgptr p, int len)
80{ 99{
81 char *ptr = (char *)p; 100 char *ptr = (char *)p;
82 my_bool dummy; 101 my_bool dummy;
83 102
84 vio->vioblocking (vio, 0, &dummy); 103 vio->vioblocking (vio, 0, &dummy);
… …
92 ptr += wr; 111 ptr += wr;
93 len -= wr; 112 len -= wr;
94 } 113 }
95 else if (errno == EAGAIN) 114 else if (errno == EAGAIN)
96 { 115 {
116 ourdata *our = OURDATAPTR;
117
118#if HAVE_EV
119 if (use_ev)
120 {
121 our->ww.data = (void *)sv_2mortal (SvREFCNT_inc (CORO_CURRENT));
122 ev_io_start (EV_DEFAULT_UC, &(our->ww));
123 CORO_SCHEDULE;
124 ev_io_stop (EV_DEFAULT_UC, &(our->ww)); /* avoids races */
125 }
126 else
127#endif
128 {
97 dSP; 129 dSP;
98 PUSHMARK (SP); 130 PUSHMARK (SP);
99 XPUSHs (OURDATAPTR->corosocket); 131 XPUSHs (our->corohandle);
100 PUTBACK; 132 PUTBACK;
101 call_sv ((SV *)writable, G_VOID | G_DISCARD); 133 call_sv ((SV *)writable, G_VOID | G_DISCARD);
134 }
102 } 135 }
103 else if (ptr == (char *)p) 136 else if (ptr == (char *)p)
104 return -1; 137 return -1;
105 else 138 else
106 break; 139 break;
107 } 140 }
108 141
109 return ptr - (char *)p; 142 return ptr - (char *)p;
110} 143}
111 144
145static int
146our_close (Vio *vio)
147{
148 ourdata *our = OURDATAPTR;
149
150 if (vio->read != our_read)
151 croak ("vio.read has unexpected content during unpatch - wtf?");
152
153 if (vio->write != our_write)
154 croak ("vio.write has unexpected content during unpatch - wtf?");
155
156 if (vio->vioclose != our_close)
157 croak ("vio.vioclose has unexpected content during unpatch - wtf?");
158
159#if HAVE_EV
160 if (use_ev)
161 {
162 ev_io_stop (EV_DEFAULT_UC, &(our->rw));
163 ev_io_stop (EV_DEFAULT_UC, &(our->ww));
164 }
165#endif
166
167 SvREFCNT_dec (our->corohandle);
168 SvREFCNT_dec (our->corohandle_sv);
169
170 Safefree (our);
171
172 vio->read = vio_read;
173 vio->write = vio_write;
174 vio->vioclose = vio_close;
175
176 vio->vioclose (vio);
177}
178
179#if HAVE_EV
180static void
181iocb (EV_P_ ev_io *w, int revents)
182{
183 ev_io_stop (EV_A, w);
184 CORO_READY ((SV *)w->data);
185}
186#endif
187
112MODULE = Coro::Mysql PACKAGE = Coro::Mysql 188MODULE = Coro::Mysql PACKAGE = Coro::Mysql
113 189
114BOOT: 190BOOT:
115{ 191{
116 readable = get_cv ("Coro::Mysql::readable", 0); 192 readable = get_cv ("Coro::Mysql::readable", 0);
… …
118} 194}
119 195
120PROTOTYPES: ENABLE 196PROTOTYPES: ENABLE
121 197
122void 198void
123_patch (IV sock, int fd, SV *corosocket) 199_use_ev ()
200 PPCODE:
201{
202 static int onceonly;
203
204 if (!onceonly)
205 {
206 onceonly = 1;
207#if HAVE_EV
208 I_EV_API ("Coro::Mysql");
209 I_CORO_API ("Coro::Mysql");
210 use_ev = 1;
211#endif
212 }
213
214 XPUSHs (use_ev ? &PL_sv_yes : &PL_sv_no);
215}
216
217void
218_patch (IV sock, int fd, SV *corohandle_sv, SV *corohandle)
124 CODE: 219 CODE:
125{ 220{
126 MYSQL *my = (MYSQL *)sock; 221 MYSQL *my = (MYSQL *)sock;
127 Vio *vio = my->net.vio; 222 Vio *vio = my->net.vio;
128 ourdata *our; 223 ourdata *our;
… …
131 croak ("DBD::mysql fd and libmysql disagree - library mismatch, unsupported transport or API changes?"); 226 croak ("DBD::mysql fd and libmysql disagree - library mismatch, unsupported transport or API changes?");
132 227
133 if (fd != vio->sd) 228 if (fd != vio->sd)
134 croak ("DBD::mysql fd and vio-sd disagree - library mismatch, unsupported transport or API changes?"); 229 croak ("DBD::mysql fd and vio-sd disagree - library mismatch, unsupported transport or API changes?");
135 230
231 if (vio->vioclose != vio_close)
232 croak ("vio.write has unexpected content - library mismatch, unsupported transport or API changes?");
233
136 if (vio->write != vio_write) 234 if (vio->write != vio_write)
137 croak ("vio.write has unexpected content - library mismatch, unsupported transport or API changes?"); 235 croak ("vio.write has unexpected content - library mismatch, unsupported transport or API changes?");
138 236
139 if (vio->read != vio_read && vio->read != vio_read_buff) 237 if (vio->read != vio_read
238 && vio->read != vio_read_buff)
140 croak ("vio.read has unexpected content - library mismatch, unsupported transport or API changes?"); 239 croak ("vio.read has unexpected content - library mismatch, unsupported transport or API changes?");
141 240
142 Newz (0, our, 1, ourdata); 241 Newz (0, our, 1, ourdata);
143 our->magic = CoMy_MAGIC; 242 our->magic = CoMy_MAGIC;
243 our->corohandle_sv = newSVsv (corohandle_sv);
144 our->corosocket = newSVsv (corosocket); 244 our->corohandle = newSVsv (corohandle);
245#if HAVE_EV
246 if (use_ev)
247 {
248 ev_io_init (&(our->rw), iocb, vio->sd, EV_READ);
249 ev_io_init (&(our->ww), iocb, vio->sd, EV_WRITE);
250 }
251#endif
145 252
146 vio->desc [DESC_OFFSET - 1] = 0; 253 vio->desc [DESC_OFFSET - 1] = 0;
147 OURDATAPTR = our; 254 OURDATAPTR = our;
148 255
256 vio->vioclose = our_close;
149 vio->write = our_write; 257 vio->write = our_write;
150 vio->read = our_read; 258 vio->read = our_read;
151} 259}
152 260
153void
154_unpatch (IV sock)
155 CODE:
156 if (IN_DESTRUCT)
157 {
158 /* we currently leak data during global destruction */
159 /* perl makes it extremely hard to do otherwise, though */
160 MYSQL *my = (MYSQL *)sock;
161 Vio *vio = my->net.vio;
162 my_bool dummy;
163
164 if (vio->read != our_read)
165 croak ("vio.read has unexpected content during unpatch - wtf?");
166
167 if (vio->write != our_write)
168 croak ("vio.write has unexpected content during unpatch - wtf?");
169
170 SvREFCNT_dec (OURDATAPTR->corosocket);
171
172 Safefree (OURDATAPTR);
173
174 vio->read = vio_read;
175 vio->write = vio_write;
176 }
177
178
179

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