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root |
1.11 |
#include <errno.h> |
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root |
1.1 |
#include <unistd.h> |
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#include <fcntl.h> |
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root |
1.16 |
/* mariadb/mysql uses all these reserved macro names, and probably more :( */ |
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#undef read |
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#undef write |
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#undef close |
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root |
1.1 |
#include <mysql.h> |
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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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root |
1.7 |
#if HAVE_EV |
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# include "EVAPI.h" |
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# include "CoroAPI.h" |
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#endif |
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root |
1.3 |
#define IN_DESTRUCT PL_dirty |
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root |
1.1 |
typedef U16 uint16; |
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/* cached function gv's */ |
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static CV *readable, *writable; |
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root |
1.7 |
static int use_ev; |
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root |
1.1 |
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29 |
root |
1.16 |
#if MARIADB_VERSION_ID >= 100300 |
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31 |
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typedef unsigned char uchar; /* bug? */ |
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#include <ma_pvio.h> |
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#define PVIO 1 |
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#define VIOPTR MARIADB_PVIO * |
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#define VIOM(vio) (vio)->methods |
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#define vioblocking blocking |
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#define vioclose close |
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#define VIODATA(vio) (vio)->data |
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/* ma_pvio_get_socket would be it, but it's only declared, not defined */ |
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#define VIOSD(vio) mysql_get_socket ((vio)->mysql) |
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#define VIO_READ_BUFFER_SIZE PVIO_READ_AHEAD_CACHE_SIZE |
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#define my_to_vio(sock) (sock)->net.pvio |
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#define OURDATAPTR ((ourdata *)vio->methods) |
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typedef uchar *xgptr; |
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typedef const uchar *cxgptr; |
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typedef size_t xsize_t; |
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typedef ssize_t xssize_t; |
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typedef my_bool xmy_bool; |
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#else |
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#include "violite.h" |
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57 |
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#define PVIO 0 |
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#define VIOPTR Vio * |
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#define VIOM(vio) vio |
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#define VIODATA(vio) (vio)->desc |
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#define VIOSD(vio) (vio)->sd |
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#define my_to_vio(sock) (sock)->net.vio |
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typedef int xmy_bool; |
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#endif |
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root |
1.1 |
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#define CoMy_MAGIC 0x436f4d79 |
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70 |
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typedef struct { |
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root |
1.16 |
#if PVIO |
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/* must be first member */ |
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struct st_ma_pvio_methods methods; |
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#else |
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root |
1.10 |
#if DESC_IS_PTR |
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char desc[30]; |
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const char *old_desc; |
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#endif |
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root |
1.16 |
#endif |
80 |
root |
1.1 |
int magic; |
81 |
root |
1.5 |
SV *corohandle_sv, *corohandle; |
82 |
root |
1.1 |
int bufofs, bufcnt; |
83 |
root |
1.7 |
#if HAVE_EV |
84 |
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ev_io rw, ww; |
85 |
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#endif |
86 |
root |
1.1 |
char buf[VIO_READ_BUFFER_SIZE]; |
87 |
root |
1.16 |
#if PVIO |
88 |
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struct st_ma_pvio_methods *oldmethods; |
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#else |
90 |
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xssize_t (*old_read)(VIOPTR, uchar *, size_t); |
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xssize_t (*old_write)(VIOPTR, const uchar *, size_t); |
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xmy_bool (*old_close)(VIOPTR); |
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#endif |
94 |
root |
1.1 |
} ourdata; |
95 |
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96 |
root |
1.16 |
#ifndef OURDATAPTR |
97 |
root |
1.10 |
#if DESC_IS_PTR |
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# define OURDATAPTR (*(ourdata **)&((vio)->desc)) |
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#else |
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# define DESC_OFFSET 22 |
101 |
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# define OURDATAPTR (*((ourdata **)((vio)->desc + DESC_OFFSET))) |
102 |
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#endif |
103 |
root |
1.16 |
#endif |
104 |
root |
1.1 |
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105 |
root |
1.16 |
static xssize_t |
106 |
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our_read (VIOPTR vio, xgptr p, xsize_t len) |
107 |
root |
1.1 |
{ |
108 |
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ourdata *our = OURDATAPTR; |
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110 |
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if (!our->bufcnt) |
111 |
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{ |
112 |
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int rd; |
113 |
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my_bool dummy; |
114 |
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115 |
root |
1.16 |
VIOM (vio)->vioblocking (vio, 0, &dummy); |
116 |
root |
1.1 |
|
117 |
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for (;;) |
118 |
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{ |
119 |
root |
1.16 |
rd = recv (VIOSD (vio), our->buf, sizeof (our->buf), 0); |
120 |
root |
1.1 |
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121 |
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if (rd >= 0 || errno != EAGAIN) |
122 |
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break; |
123 |
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124 |
root |
1.7 |
#if HAVE_EV |
125 |
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if (use_ev) |
126 |
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{ |
127 |
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our->rw.data = (void *)sv_2mortal (SvREFCNT_inc (CORO_CURRENT)); |
128 |
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ev_io_start (EV_DEFAULT_UC, &(our->rw)); |
129 |
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CORO_SCHEDULE; |
130 |
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ev_io_stop (EV_DEFAULT_UC, &(our->rw)); /* avoids races */ |
131 |
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} |
132 |
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else |
133 |
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#endif |
134 |
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{ |
135 |
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dSP; |
136 |
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PUSHMARK (SP); |
137 |
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XPUSHs (our->corohandle); |
138 |
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PUTBACK; |
139 |
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call_sv ((SV *)readable, G_VOID | G_DISCARD); |
140 |
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} |
141 |
root |
1.1 |
} |
142 |
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143 |
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if (rd <= 0) |
144 |
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return rd; |
145 |
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146 |
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our->bufcnt = rd; |
147 |
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our->bufofs = 0; |
148 |
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} |
149 |
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150 |
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if (our->bufcnt < len) |
151 |
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len = our->bufcnt; |
152 |
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153 |
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memcpy (p, our->buf + our->bufofs, len); |
154 |
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our->bufofs += len; |
155 |
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our->bufcnt -= len; |
156 |
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157 |
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return len; |
158 |
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} |
159 |
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160 |
root |
1.16 |
static xssize_t |
161 |
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our_write (VIOPTR vio, cxgptr p, xsize_t len) |
162 |
root |
1.1 |
{ |
163 |
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char *ptr = (char *)p; |
164 |
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my_bool dummy; |
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166 |
root |
1.16 |
VIOM (vio)->vioblocking (vio, 0, &dummy); |
167 |
root |
1.1 |
|
168 |
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while (len > 0) |
169 |
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{ |
170 |
root |
1.16 |
int wr = send (VIOSD (vio), ptr, len, 0); |
171 |
root |
1.1 |
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172 |
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if (wr > 0) |
173 |
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{ |
174 |
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ptr += wr; |
175 |
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len -= wr; |
176 |
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} |
177 |
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else if (errno == EAGAIN) |
178 |
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{ |
179 |
root |
1.7 |
ourdata *our = OURDATAPTR; |
180 |
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181 |
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#if HAVE_EV |
182 |
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if (use_ev) |
183 |
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{ |
184 |
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our->ww.data = (void *)sv_2mortal (SvREFCNT_inc (CORO_CURRENT)); |
185 |
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ev_io_start (EV_DEFAULT_UC, &(our->ww)); |
186 |
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CORO_SCHEDULE; |
187 |
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ev_io_stop (EV_DEFAULT_UC, &(our->ww)); /* avoids races */ |
188 |
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} |
189 |
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else |
190 |
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#endif |
191 |
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{ |
192 |
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dSP; |
193 |
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PUSHMARK (SP); |
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XPUSHs (our->corohandle); |
195 |
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PUTBACK; |
196 |
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call_sv ((SV *)writable, G_VOID | G_DISCARD); |
197 |
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} |
198 |
root |
1.1 |
} |
199 |
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else if (ptr == (char *)p) |
200 |
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return -1; |
201 |
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else |
202 |
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break; |
203 |
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} |
204 |
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205 |
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return ptr - (char *)p; |
206 |
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} |
207 |
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208 |
root |
1.16 |
static xmy_bool |
209 |
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our_close (VIOPTR vio) |
210 |
root |
1.5 |
{ |
211 |
root |
1.7 |
ourdata *our = OURDATAPTR; |
212 |
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213 |
root |
1.16 |
if (VIOM (vio)->read != our_read) |
214 |
root |
1.5 |
croak ("vio.read has unexpected content during unpatch - wtf?"); |
215 |
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216 |
root |
1.16 |
if (VIOM (vio)->write != our_write) |
217 |
root |
1.5 |
croak ("vio.write has unexpected content during unpatch - wtf?"); |
218 |
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219 |
root |
1.16 |
if (VIOM (vio)->vioclose != our_close) |
220 |
root |
1.5 |
croak ("vio.vioclose has unexpected content during unpatch - wtf?"); |
221 |
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222 |
root |
1.7 |
#if HAVE_EV |
223 |
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if (use_ev) |
224 |
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{ |
225 |
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ev_io_stop (EV_DEFAULT_UC, &(our->rw)); |
226 |
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ev_io_stop (EV_DEFAULT_UC, &(our->ww)); |
227 |
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} |
228 |
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#endif |
229 |
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230 |
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SvREFCNT_dec (our->corohandle); |
231 |
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SvREFCNT_dec (our->corohandle_sv); |
232 |
root |
1.5 |
|
233 |
root |
1.10 |
#if DESC_IS_PTR |
234 |
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vio->desc = our->old_desc; |
235 |
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#endif |
236 |
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237 |
root |
1.16 |
#if PVIO |
238 |
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vio->methods = our->oldmethods; |
239 |
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#else |
240 |
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VIOM (vio)->vioclose = our->old_close; |
241 |
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VIOM (vio)->write = our->old_write; |
242 |
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VIOM (vio)->read = our->old_read; |
243 |
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#endif |
244 |
root |
1.5 |
|
245 |
root |
1.14 |
Safefree (our); |
246 |
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247 |
root |
1.16 |
VIOM (vio)->vioclose (vio); |
248 |
root |
1.5 |
} |
249 |
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250 |
root |
1.7 |
#if HAVE_EV |
251 |
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static void |
252 |
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iocb (EV_P_ ev_io *w, int revents) |
253 |
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{ |
254 |
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ev_io_stop (EV_A, w); |
255 |
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CORO_READY ((SV *)w->data); |
256 |
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} |
257 |
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#endif |
258 |
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259 |
root |
1.1 |
MODULE = Coro::Mysql PACKAGE = Coro::Mysql |
260 |
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261 |
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BOOT: |
262 |
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{ |
263 |
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readable = get_cv ("Coro::Mysql::readable", 0); |
264 |
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writable = get_cv ("Coro::Mysql::writable", 0); |
265 |
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} |
266 |
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267 |
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PROTOTYPES: ENABLE |
268 |
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269 |
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void |
270 |
root |
1.7 |
_use_ev () |
271 |
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PPCODE: |
272 |
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{ |
273 |
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static int onceonly; |
274 |
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275 |
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if (!onceonly) |
276 |
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{ |
277 |
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onceonly = 1; |
278 |
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#if HAVE_EV |
279 |
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I_EV_API ("Coro::Mysql"); |
280 |
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I_CORO_API ("Coro::Mysql"); |
281 |
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use_ev = 1; |
282 |
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#endif |
283 |
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} |
284 |
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285 |
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XPUSHs (use_ev ? &PL_sv_yes : &PL_sv_no); |
286 |
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} |
287 |
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288 |
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void |
289 |
root |
1.8 |
_patch (IV sock, int fd, unsigned long client_version, SV *corohandle_sv, SV *corohandle) |
290 |
root |
1.1 |
CODE: |
291 |
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{ |
292 |
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MYSQL *my = (MYSQL *)sock; |
293 |
root |
1.16 |
VIOPTR vio = my_to_vio (my); |
294 |
root |
1.1 |
ourdata *our; |
295 |
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296 |
root |
1.8 |
/* matching versions are required but not sufficient */ |
297 |
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if (client_version != mysql_get_client_version ()) |
298 |
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croak ("DBD::mysql linked against different libmysqlclient library than Coro::Mysql (%lu vs. %lu).", |
299 |
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client_version, mysql_get_client_version ()); |
300 |
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301 |
root |
1.1 |
if (fd != my->net.fd) |
302 |
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croak ("DBD::mysql fd and libmysql disagree - library mismatch, unsupported transport or API changes?"); |
303 |
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304 |
root |
1.16 |
if (fd != VIOSD (vio)) |
305 |
root |
1.1 |
croak ("DBD::mysql fd and vio-sd disagree - library mismatch, unsupported transport or API changes?"); |
306 |
root |
1.13 |
#if MYSQL_VERSION_ID < 100010 && !defined(MARIADB_BASE_VERSION) |
307 |
root |
1.16 |
if (VIOM (vio)->vioclose != vio_close) |
308 |
root |
1.9 |
croak ("vio.vioclose has unexpected content - library mismatch, unsupported transport or API changes?"); |
309 |
root |
1.5 |
|
310 |
root |
1.16 |
if (VIOM (vio)->write != vio_write) |
311 |
root |
1.1 |
croak ("vio.write has unexpected content - library mismatch, unsupported transport or API changes?"); |
312 |
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313 |
root |
1.16 |
if (VIOM (vio)->read != vio_read |
314 |
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&& VIOM (vio)->read != vio_read_buff) |
315 |
root |
1.1 |
croak ("vio.read has unexpected content - library mismatch, unsupported transport or API changes?"); |
316 |
root |
1.12 |
#endif |
317 |
root |
1.16 |
#if PVIO |
318 |
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if (vio->type != PVIO_TYPE_UNIXSOCKET && vio->type != PVIO_TYPE_SOCKET) |
319 |
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croak ("connection type mismatch: Coro::Mysql only supports 'unixsocket' and 'socket' types at this time"); |
320 |
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#endif |
321 |
root |
1.1 |
|
322 |
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Newz (0, our, 1, ourdata); |
323 |
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our->magic = CoMy_MAGIC; |
324 |
root |
1.5 |
our->corohandle_sv = newSVsv (corohandle_sv); |
325 |
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our->corohandle = newSVsv (corohandle); |
326 |
root |
1.7 |
#if HAVE_EV |
327 |
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if (use_ev) |
328 |
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{ |
329 |
root |
1.16 |
ev_io_init (&(our->rw), iocb, VIOSD (vio), EV_READ); |
330 |
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ev_io_init (&(our->ww), iocb, VIOSD (vio), EV_WRITE); |
331 |
root |
1.7 |
} |
332 |
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#endif |
333 |
root |
1.16 |
#if PVIO |
334 |
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/* with pvio, we replace methods by our own struct, |
335 |
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* both becauase the original might be read-only, |
336 |
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* and because we have no private data member, so the |
337 |
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* methods pointer includes our data as well |
338 |
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*/ |
339 |
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our->methods = *vio->methods; |
340 |
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our->oldmethods = vio->methods; |
341 |
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vio->methods = &our->methods; |
342 |
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#else |
343 |
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OURDATAPTR = our; |
344 |
root |
1.10 |
#if DESC_IS_PTR |
345 |
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our->old_desc = vio->desc; |
346 |
|
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strncpy (our->desc, vio->desc, sizeof (our->desc)); |
347 |
|
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our->desc [sizeof (our->desc) - 1] = 0; |
348 |
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#else |
349 |
root |
1.1 |
vio->desc [DESC_OFFSET - 1] = 0; |
350 |
root |
1.10 |
#endif |
351 |
root |
1.16 |
our->old_close = VIOM (vio)->vioclose; |
352 |
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our->old_write = VIOM (vio)->write; |
353 |
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our->old_read = VIOM (vio)->read; |
354 |
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#endif |
355 |
root |
1.1 |
|
356 |
root |
1.16 |
/* with pvio, this patches our own struct */ |
357 |
|
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VIOM (vio)->vioclose = our_close; |
358 |
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VIOM (vio)->write = our_write; |
359 |
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VIOM (vio)->read = our_read; |
360 |
root |
1.1 |
} |
361 |
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