… | |
… | |
5 | #include "perl.h" |
5 | #include "perl.h" |
6 | #include "XSUB.h" |
6 | #include "XSUB.h" |
7 | |
7 | |
8 | #include "autoconf/config.h" |
8 | #include "autoconf/config.h" |
9 | |
9 | |
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10 | #include <pthread.h> |
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11 | |
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12 | #include <stddef.h> |
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13 | #include <errno.h> |
10 | #include <sys/types.h> |
14 | #include <sys/types.h> |
11 | #include <sys/stat.h> |
15 | #include <sys/stat.h> |
12 | |
16 | #include <limits.h> |
13 | #include <unistd.h> |
17 | #include <unistd.h> |
14 | #include <fcntl.h> |
18 | #include <fcntl.h> |
15 | #include <signal.h> |
19 | #include <signal.h> |
16 | #include <sched.h> |
20 | #include <sched.h> |
17 | |
21 | |
18 | #include <pthread.h> |
22 | #if HAVE_SENDFILE |
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23 | # if __linux |
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24 | # include <sys/sendfile.h> |
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25 | # elif __freebsd |
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26 | # include <sys/socket.h> |
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27 | # include <sys/uio.h> |
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28 | # elif __hpux |
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29 | # include <sys/socket.h> |
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30 | # elif __solaris /* not yet */ |
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31 | # include <sys/sendfile.h> |
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32 | # else |
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33 | # error sendfile support requested but not available |
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34 | # endif |
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35 | #endif |
19 | |
36 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
37 | /* used for struct dirent, AIX doesn't provide it */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
38 | #ifndef NAME_MAX |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
39 | # define NAME_MAX 4096 |
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40 | #endif |
23 | |
41 | |
24 | #if __ia64 |
42 | #if __ia64 |
25 | # define STACKSIZE 65536 |
43 | # define STACKSIZE 65536 |
26 | #else |
44 | #else |
27 | # define STACKSIZE 4096 |
45 | # define STACKSIZE 8192 |
28 | #endif |
46 | #endif |
29 | |
47 | |
30 | enum { |
48 | enum { |
31 | REQ_QUIT, |
49 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
50 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
51 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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52 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
53 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
54 | REQ_FSYNC, REQ_FDATASYNC, |
36 | REQ_UNLINK, REQ_RMDIR, |
55 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
37 | REQ_SYMLINK, |
56 | REQ_READDIR, |
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57 | REQ_LINK, REQ_SYMLINK, |
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58 | REQ_GROUP, |
38 | }; |
59 | }; |
39 | |
60 | |
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61 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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62 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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63 | |
40 | typedef struct aio_cb { |
64 | typedef struct aio_cb |
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65 | { |
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66 | struct aio_cb *grp, *grp_prev, *grp_next; |
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67 | |
41 | struct aio_cb *volatile next; |
68 | struct aio_cb *volatile next; |
42 | |
69 | |
43 | int type; |
70 | SV *self; /* the perl counterpart of this request, if any */ |
44 | |
71 | |
45 | int fd; |
72 | SV *data, *callback; |
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73 | SV *fh, *fh2; |
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74 | void *dataptr, *data2ptr; |
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75 | Stat_t *statdata; |
46 | off_t offset; |
76 | off_t offset; |
47 | size_t length; |
77 | size_t length; |
48 | ssize_t result; |
78 | ssize_t result; |
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79 | |
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80 | int type; |
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81 | int fd, fd2; |
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82 | int errorno; |
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83 | STRLEN dataoffset; |
49 | mode_t mode; /* open */ |
84 | mode_t mode; /* open */ |
50 | int errorno; |
85 | unsigned char cancelled; |
51 | SV *data, *callback, *fh; |
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52 | void *dataptr, *data2ptr; |
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53 | STRLEN dataoffset; |
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54 | |
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55 | Stat_t *statdata; |
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56 | } aio_cb; |
86 | } aio_cb; |
57 | |
87 | |
58 | typedef aio_cb *aio_req; |
88 | typedef aio_cb *aio_req; |
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89 | typedef aio_cb *aio_req_ornot; |
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90 | typedef aio_cb *aio_group; |
59 | |
91 | |
60 | static int started, wanted; |
92 | static int started, wanted; |
61 | static volatile int nreqs; |
93 | static volatile int nreqs; |
62 | static int max_outstanding = 1<<30; |
94 | static int max_outstanding = 1<<30; |
63 | static int respipe [2]; |
95 | static int respipe [2]; |
… | |
… | |
67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
99 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
68 | |
100 | |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
101 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
70 | static volatile aio_req ress, rese; /* queue start, queue end */ |
102 | static volatile aio_req ress, rese; /* queue start, queue end */ |
71 | |
103 | |
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104 | /* must be called at most once */ |
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105 | static SV *req_sv (aio_req req, const char *klass) |
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106 | { |
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107 | req->self = (SV *)newHV (); |
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108 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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109 | |
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110 | return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1))); |
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111 | } |
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112 | |
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113 | static aio_req SvAIO_REQ (SV *sv, const char *klass) |
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114 | { |
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115 | if (!sv_derived_from (sv, klass) || !SvROK (sv)) |
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116 | croak ("object of class %s expected", klass); |
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117 | |
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118 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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119 | |
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120 | return mg ? (aio_req)mg->mg_ptr : 0; |
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121 | } |
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122 | |
72 | static void free_req (aio_req req) |
123 | static void req_free (aio_req req) |
73 | { |
124 | { |
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125 | if (req->self) |
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126 | { |
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127 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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128 | SvREFCNT_dec (req->self); |
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129 | } |
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130 | |
74 | if (req->data) |
131 | if (req->data) |
75 | SvREFCNT_dec (req->data); |
132 | SvREFCNT_dec (req->data); |
76 | |
133 | |
77 | if (req->fh) |
134 | if (req->fh) |
78 | SvREFCNT_dec (req->fh); |
135 | SvREFCNT_dec (req->fh); |
79 | |
136 | |
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137 | if (req->fh2) |
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138 | SvREFCNT_dec (req->fh2); |
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139 | |
80 | if (req->statdata) |
140 | if (req->statdata) |
81 | Safefree (req->statdata); |
141 | Safefree (req->statdata); |
82 | |
142 | |
83 | if (req->callback) |
143 | if (req->callback) |
84 | SvREFCNT_dec (req->callback); |
144 | SvREFCNT_dec (req->callback); |
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145 | |
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146 | if (req->type == REQ_READDIR && req->result >= 0) |
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147 | free (req->data2ptr); |
85 | |
148 | |
86 | Safefree (req); |
149 | Safefree (req); |
87 | } |
150 | } |
88 | |
151 | |
89 | static void |
152 | static void |
… | |
… | |
154 | PL_statcache = *(req->statdata); |
217 | PL_statcache = *(req->statdata); |
155 | } |
218 | } |
156 | |
219 | |
157 | ENTER; |
220 | ENTER; |
158 | PUSHMARK (SP); |
221 | PUSHMARK (SP); |
159 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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160 | |
222 | |
161 | if (req->type == REQ_OPEN) |
223 | if (req->type == REQ_READDIR) |
162 | { |
224 | { |
163 | /* convert fd to fh */ |
225 | SV *rv = &PL_sv_undef; |
164 | SV *fh; |
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165 | |
226 | |
166 | PUTBACK; |
227 | if (req->result >= 0) |
167 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
228 | { |
168 | SPAGAIN; |
229 | char *buf = req->data2ptr; |
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230 | AV *av = newAV (); |
169 | |
231 | |
170 | fh = SvREFCNT_inc (POPs); |
232 | while (req->result) |
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233 | { |
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234 | SV *sv = newSVpv (buf, 0); |
171 | |
235 | |
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236 | av_push (av, sv); |
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237 | buf += SvCUR (sv) + 1; |
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238 | req->result--; |
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239 | } |
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240 | |
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241 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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242 | } |
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243 | |
172 | PUSHMARK (SP); |
244 | XPUSHs (rv); |
173 | XPUSHs (sv_2mortal (fh)); |
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174 | } |
245 | } |
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246 | else |
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247 | { |
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248 | XPUSHs (sv_2mortal (newSViv (req->result))); |
175 | |
249 | |
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250 | if (req->type == REQ_OPEN) |
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251 | { |
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252 | /* convert fd to fh */ |
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253 | SV *fh; |
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254 | |
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255 | PUTBACK; |
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256 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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257 | SPAGAIN; |
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258 | |
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259 | fh = SvREFCNT_inc (POPs); |
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260 | |
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261 | PUSHMARK (SP); |
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262 | XPUSHs (sv_2mortal (fh)); |
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263 | } |
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264 | } |
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265 | |
176 | if (SvOK (req->callback)) |
266 | if (SvOK (req->callback) && !req->cancelled) |
177 | { |
267 | { |
178 | PUTBACK; |
268 | PUTBACK; |
179 | call_sv (req->callback, G_VOID | G_EVAL); |
269 | call_sv (req->callback, G_VOID | G_EVAL); |
180 | SPAGAIN; |
270 | SPAGAIN; |
181 | |
271 | |
182 | if (SvTRUE (ERRSV)) |
272 | if (SvTRUE (ERRSV)) |
183 | { |
273 | { |
184 | free_req (req); |
274 | req_free (req); |
185 | croak (0); |
275 | croak (0); |
186 | } |
276 | } |
187 | } |
277 | } |
188 | |
278 | |
189 | LEAVE; |
279 | LEAVE; |
190 | |
280 | |
191 | errno = errorno; |
281 | errno = errorno; |
192 | count++; |
282 | count++; |
193 | } |
283 | } |
194 | |
284 | |
195 | free_req (req); |
285 | req_free (req); |
196 | } |
286 | } |
197 | |
287 | |
198 | return count; |
288 | return count; |
199 | } |
289 | } |
200 | |
290 | |
… | |
… | |
207 | pthread_t tid; |
297 | pthread_t tid; |
208 | pthread_attr_t attr; |
298 | pthread_attr_t attr; |
209 | |
299 | |
210 | pthread_attr_init (&attr); |
300 | pthread_attr_init (&attr); |
211 | pthread_attr_setstacksize (&attr, STACKSIZE); |
301 | pthread_attr_setstacksize (&attr, STACKSIZE); |
212 | // pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
302 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
213 | |
303 | |
214 | sigfillset (&fullsigset); |
304 | sigfillset (&fullsigset); |
215 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
305 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
216 | |
306 | |
217 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
307 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
… | |
… | |
219 | |
309 | |
220 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
310 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
221 | } |
311 | } |
222 | |
312 | |
223 | static void |
313 | static void |
224 | send_req (aio_req req) |
314 | req_send (aio_req req) |
225 | { |
315 | { |
226 | while (started < wanted && nreqs >= started) |
316 | while (started < wanted && nreqs >= started) |
227 | start_thread (); |
317 | start_thread (); |
228 | |
318 | |
229 | nreqs++; |
319 | nreqs++; |
… | |
… | |
260 | { |
350 | { |
261 | aio_req req; |
351 | aio_req req; |
262 | Newz (0, req, 1, aio_cb); |
352 | Newz (0, req, 1, aio_cb); |
263 | req->type = REQ_QUIT; |
353 | req->type = REQ_QUIT; |
264 | |
354 | |
265 | send_req (req); |
355 | req_send (req); |
266 | } |
356 | } |
267 | |
357 | |
268 | static void min_parallel (int nthreads) |
358 | static void min_parallel (int nthreads) |
269 | { |
359 | { |
270 | if (wanted < nthreads) |
360 | if (wanted < nthreads) |
… | |
… | |
299 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
389 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
300 | croak ("cannot set result pipe to nonblocking mode"); |
390 | croak ("cannot set result pipe to nonblocking mode"); |
301 | |
391 | |
302 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
392 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
303 | croak ("cannot set result pipe to nonblocking mode"); |
393 | croak ("cannot set result pipe to nonblocking mode"); |
304 | } |
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305 | |
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306 | static void atfork_prepare (void) |
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307 | { |
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308 | pthread_mutex_lock (&reqlock); |
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309 | pthread_mutex_lock (&reslock); |
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310 | } |
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311 | |
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312 | static void atfork_parent (void) |
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313 | { |
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314 | pthread_mutex_unlock (&reslock); |
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315 | pthread_mutex_unlock (&reqlock); |
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316 | } |
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317 | |
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318 | static void atfork_child (void) |
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319 | { |
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320 | aio_req prv; |
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321 | |
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322 | started = 0; |
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323 | |
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324 | while (reqs) |
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325 | { |
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326 | prv = reqs; |
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327 | reqs = prv->next; |
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328 | free_req (prv); |
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329 | } |
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330 | |
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331 | reqs = reqe = 0; |
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332 | |
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333 | while (ress) |
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334 | { |
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335 | prv = ress; |
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336 | ress = prv->next; |
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337 | free_req (prv); |
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338 | } |
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339 | |
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340 | ress = rese = 0; |
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341 | |
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342 | close (respipe [0]); |
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343 | close (respipe [1]); |
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344 | create_pipe (); |
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345 | |
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346 | atfork_parent (); |
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347 | } |
394 | } |
348 | |
395 | |
349 | /*****************************************************************************/ |
396 | /*****************************************************************************/ |
350 | /* work around various missing functions */ |
397 | /* work around various missing functions */ |
351 | |
398 | |
… | |
… | |
356 | /* |
403 | /* |
357 | * make our pread/pwrite safe against themselves, but not against |
404 | * make our pread/pwrite safe against themselves, but not against |
358 | * normal read/write by using a mutex. slows down execution a lot, |
405 | * normal read/write by using a mutex. slows down execution a lot, |
359 | * but that's your problem, not mine. |
406 | * but that's your problem, not mine. |
360 | */ |
407 | */ |
361 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
408 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
362 | |
409 | |
363 | static ssize_t |
410 | static ssize_t |
364 | pread (int fd, void *buf, size_t count, off_t offset) |
411 | pread (int fd, void *buf, size_t count, off_t offset) |
365 | { |
412 | { |
366 | ssize_t res; |
413 | ssize_t res; |
367 | off_t ooffset; |
414 | off_t ooffset; |
368 | |
415 | |
369 | pthread_mutex_lock (&iolock); |
416 | pthread_mutex_lock (&preadwritelock); |
370 | ooffset = lseek (fd, 0, SEEK_CUR); |
417 | ooffset = lseek (fd, 0, SEEK_CUR); |
371 | lseek (fd, offset, SEEK_SET); |
418 | lseek (fd, offset, SEEK_SET); |
372 | res = read (fd, buf, count); |
419 | res = read (fd, buf, count); |
373 | lseek (fd, ooffset, SEEK_SET); |
420 | lseek (fd, ooffset, SEEK_SET); |
374 | pthread_mutex_unlock (&iolock); |
421 | pthread_mutex_unlock (&preadwritelock); |
375 | |
422 | |
376 | return res; |
423 | return res; |
377 | } |
424 | } |
378 | |
425 | |
379 | static ssize_t |
426 | static ssize_t |
380 | pwrite (int fd, void *buf, size_t count, off_t offset) |
427 | pwrite (int fd, void *buf, size_t count, off_t offset) |
381 | { |
428 | { |
382 | ssize_t res; |
429 | ssize_t res; |
383 | off_t ooffset; |
430 | off_t ooffset; |
384 | |
431 | |
385 | pthread_mutex_lock (&iolock); |
432 | pthread_mutex_lock (&preadwritelock); |
386 | ooffset = lseek (fd, 0, SEEK_CUR); |
433 | ooffset = lseek (fd, 0, SEEK_CUR); |
387 | lseek (fd, offset, SEEK_SET); |
434 | lseek (fd, offset, SEEK_SET); |
388 | res = write (fd, buf, count); |
435 | res = write (fd, buf, count); |
389 | lseek (fd, offset, SEEK_SET); |
436 | lseek (fd, offset, SEEK_SET); |
390 | pthread_mutex_unlock (&iolock); |
437 | pthread_mutex_unlock (&preadwritelock); |
391 | |
438 | |
392 | return res; |
439 | return res; |
393 | } |
440 | } |
394 | #endif |
441 | #endif |
395 | |
442 | |
… | |
… | |
398 | #endif |
445 | #endif |
399 | |
446 | |
400 | #if !HAVE_READAHEAD |
447 | #if !HAVE_READAHEAD |
401 | # define readahead aio_readahead |
448 | # define readahead aio_readahead |
402 | |
449 | |
403 | static char readahead_buf[4096]; |
|
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404 | |
|
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405 | static ssize_t |
450 | static ssize_t |
406 | readahead (int fd, off_t offset, size_t count) |
451 | readahead (int fd, off_t offset, size_t count) |
407 | { |
452 | { |
|
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453 | char readahead_buf[4096]; |
|
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454 | |
408 | while (count > 0) |
455 | while (count > 0) |
409 | { |
456 | { |
410 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
457 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
411 | |
458 | |
412 | pread (fd, readahead_buf, len, offset); |
459 | pread (fd, readahead_buf, len, offset); |
… | |
… | |
415 | } |
462 | } |
416 | |
463 | |
417 | errno = 0; |
464 | errno = 0; |
418 | } |
465 | } |
419 | #endif |
466 | #endif |
|
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467 | |
|
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468 | #if !HAVE_READDIR_R |
|
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469 | # define readdir_r aio_readdir_r |
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470 | |
|
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471 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
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472 | |
|
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473 | static int |
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474 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
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475 | { |
|
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476 | struct dirent *e; |
|
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477 | int errorno; |
|
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478 | |
|
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479 | pthread_mutex_lock (&readdirlock); |
|
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480 | |
|
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481 | e = readdir (dirp); |
|
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482 | errorno = errno; |
|
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483 | |
|
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484 | if (e) |
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485 | { |
|
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486 | *res = ent; |
|
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487 | strcpy (ent->d_name, e->d_name); |
|
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488 | } |
|
|
489 | else |
|
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490 | *res = 0; |
|
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491 | |
|
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492 | pthread_mutex_unlock (&readdirlock); |
|
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493 | |
|
|
494 | errno = errorno; |
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|
495 | return e ? 0 : -1; |
|
|
496 | } |
|
|
497 | #endif |
|
|
498 | |
|
|
499 | /* sendfile always needs emulation */ |
|
|
500 | static ssize_t |
|
|
501 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
502 | { |
|
|
503 | ssize_t res; |
|
|
504 | |
|
|
505 | if (!count) |
|
|
506 | return 0; |
|
|
507 | |
|
|
508 | #if HAVE_SENDFILE |
|
|
509 | # if __linux |
|
|
510 | res = sendfile (ofd, ifd, &offset, count); |
|
|
511 | |
|
|
512 | # elif __freebsd |
|
|
513 | /* |
|
|
514 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
515 | * wasted on making it similar to other I/O functions. |
|
|
516 | */ |
|
|
517 | { |
|
|
518 | off_t sbytes; |
|
|
519 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
520 | |
|
|
521 | if (res < 0 && sbytes) |
|
|
522 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
523 | res = sbytes; |
|
|
524 | } |
|
|
525 | |
|
|
526 | # elif __hpux |
|
|
527 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
528 | |
|
|
529 | # elif __solaris |
|
|
530 | { |
|
|
531 | struct sendfilevec vec; |
|
|
532 | size_t sbytes; |
|
|
533 | |
|
|
534 | vec.sfv_fd = ifd; |
|
|
535 | vec.sfv_flag = 0; |
|
|
536 | vec.sfv_off = offset; |
|
|
537 | vec.sfv_len = count; |
|
|
538 | |
|
|
539 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
540 | |
|
|
541 | if (res < 0 && sbytes) |
|
|
542 | res = sbytes; |
|
|
543 | } |
|
|
544 | |
|
|
545 | # endif |
|
|
546 | #else |
|
|
547 | res = -1; |
|
|
548 | errno = ENOSYS; |
|
|
549 | #endif |
|
|
550 | |
|
|
551 | if (res < 0 |
|
|
552 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
553 | #if __solaris |
|
|
554 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
555 | #endif |
|
|
556 | ) |
|
|
557 | ) |
|
|
558 | { |
|
|
559 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
560 | char buf[4096]; |
|
|
561 | res = 0; |
|
|
562 | |
|
|
563 | while (count) |
|
|
564 | { |
|
|
565 | ssize_t cnt; |
|
|
566 | |
|
|
567 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
|
|
568 | |
|
|
569 | if (cnt <= 0) |
|
|
570 | { |
|
|
571 | if (cnt && !res) res = -1; |
|
|
572 | break; |
|
|
573 | } |
|
|
574 | |
|
|
575 | cnt = write (ofd, buf, cnt); |
|
|
576 | |
|
|
577 | if (cnt <= 0) |
|
|
578 | { |
|
|
579 | if (cnt && !res) res = -1; |
|
|
580 | break; |
|
|
581 | } |
|
|
582 | |
|
|
583 | offset += cnt; |
|
|
584 | res += cnt; |
|
|
585 | count -= cnt; |
|
|
586 | } |
|
|
587 | } |
|
|
588 | |
|
|
589 | return res; |
|
|
590 | } |
|
|
591 | |
|
|
592 | /* read a full directory */ |
|
|
593 | static int |
|
|
594 | scandir_ (const char *path, void **namesp) |
|
|
595 | { |
|
|
596 | DIR *dirp = opendir (path); |
|
|
597 | union |
|
|
598 | { |
|
|
599 | struct dirent d; |
|
|
600 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
601 | } u; |
|
|
602 | struct dirent *entp; |
|
|
603 | char *name, *names; |
|
|
604 | int memlen = 4096; |
|
|
605 | int memofs = 0; |
|
|
606 | int res = 0; |
|
|
607 | int errorno; |
|
|
608 | |
|
|
609 | if (!dirp) |
|
|
610 | return -1; |
|
|
611 | |
|
|
612 | names = malloc (memlen); |
|
|
613 | |
|
|
614 | for (;;) |
|
|
615 | { |
|
|
616 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
617 | |
|
|
618 | if (!entp) |
|
|
619 | break; |
|
|
620 | |
|
|
621 | name = entp->d_name; |
|
|
622 | |
|
|
623 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
624 | { |
|
|
625 | int len = strlen (name) + 1; |
|
|
626 | |
|
|
627 | res++; |
|
|
628 | |
|
|
629 | while (memofs + len > memlen) |
|
|
630 | { |
|
|
631 | memlen *= 2; |
|
|
632 | names = realloc (names, memlen); |
|
|
633 | if (!names) |
|
|
634 | break; |
|
|
635 | } |
|
|
636 | |
|
|
637 | memcpy (names + memofs, name, len); |
|
|
638 | memofs += len; |
|
|
639 | } |
|
|
640 | } |
|
|
641 | |
|
|
642 | errorno = errno; |
|
|
643 | closedir (dirp); |
|
|
644 | |
|
|
645 | if (errorno) |
|
|
646 | { |
|
|
647 | free (names); |
|
|
648 | errno = errorno; |
|
|
649 | res = -1; |
|
|
650 | } |
|
|
651 | |
|
|
652 | *namesp = (void *)names; |
|
|
653 | return res; |
|
|
654 | } |
420 | |
655 | |
421 | /*****************************************************************************/ |
656 | /*****************************************************************************/ |
422 | |
657 | |
423 | static void * |
658 | static void * |
424 | aio_proc (void *thr_arg) |
659 | aio_proc (void *thr_arg) |
… | |
… | |
448 | |
683 | |
449 | pthread_mutex_unlock (&reqlock); |
684 | pthread_mutex_unlock (&reqlock); |
450 | |
685 | |
451 | errno = 0; /* strictly unnecessary */ |
686 | errno = 0; /* strictly unnecessary */ |
452 | |
687 | |
453 | type = req->type; |
688 | if (!req->cancelled) |
454 | |
|
|
455 | switch (type) |
689 | switch (req->type) |
456 | { |
690 | { |
457 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
691 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
458 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
692 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
459 | |
693 | |
460 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
694 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
695 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
461 | |
696 | |
462 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
697 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
463 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
698 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
464 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
699 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
465 | |
700 | |
466 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
701 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
467 | case REQ_CLOSE: req->result = close (req->fd); break; |
702 | case REQ_CLOSE: req->result = close (req->fd); break; |
468 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
703 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
469 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
704 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
705 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
706 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
470 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
707 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
471 | |
708 | |
472 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
709 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
473 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
710 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
711 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
474 | |
712 | |
475 | case REQ_QUIT: |
713 | case REQ_QUIT: |
476 | break; |
714 | break; |
477 | |
715 | |
478 | default: |
716 | default: |
479 | req->result = ENOSYS; |
717 | req->result = ENOSYS; |
480 | break; |
718 | break; |
481 | } |
719 | } |
482 | |
720 | |
483 | req->errorno = errno; |
721 | req->errorno = errno; |
484 | |
722 | |
485 | pthread_mutex_lock (&reslock); |
723 | pthread_mutex_lock (&reslock); |
486 | |
724 | |
… | |
… | |
504 | while (type != REQ_QUIT); |
742 | while (type != REQ_QUIT); |
505 | |
743 | |
506 | return 0; |
744 | return 0; |
507 | } |
745 | } |
508 | |
746 | |
|
|
747 | /*****************************************************************************/ |
|
|
748 | |
|
|
749 | static void atfork_prepare (void) |
|
|
750 | { |
|
|
751 | pthread_mutex_lock (&reqlock); |
|
|
752 | pthread_mutex_lock (&reslock); |
|
|
753 | #if !HAVE_PREADWRITE |
|
|
754 | pthread_mutex_lock (&preadwritelock); |
|
|
755 | #endif |
|
|
756 | #if !HAVE_READDIR_R |
|
|
757 | pthread_mutex_lock (&readdirlock); |
|
|
758 | #endif |
|
|
759 | } |
|
|
760 | |
|
|
761 | static void atfork_parent (void) |
|
|
762 | { |
|
|
763 | #if !HAVE_READDIR_R |
|
|
764 | pthread_mutex_unlock (&readdirlock); |
|
|
765 | #endif |
|
|
766 | #if !HAVE_PREADWRITE |
|
|
767 | pthread_mutex_unlock (&preadwritelock); |
|
|
768 | #endif |
|
|
769 | pthread_mutex_unlock (&reslock); |
|
|
770 | pthread_mutex_unlock (&reqlock); |
|
|
771 | } |
|
|
772 | |
|
|
773 | static void atfork_child (void) |
|
|
774 | { |
|
|
775 | aio_req prv; |
|
|
776 | |
|
|
777 | started = 0; |
|
|
778 | |
|
|
779 | while (reqs) |
|
|
780 | { |
|
|
781 | prv = reqs; |
|
|
782 | reqs = prv->next; |
|
|
783 | req_free (prv); |
|
|
784 | } |
|
|
785 | |
|
|
786 | reqs = reqe = 0; |
|
|
787 | |
|
|
788 | while (ress) |
|
|
789 | { |
|
|
790 | prv = ress; |
|
|
791 | ress = prv->next; |
|
|
792 | req_free (prv); |
|
|
793 | } |
|
|
794 | |
|
|
795 | ress = rese = 0; |
|
|
796 | |
|
|
797 | close (respipe [0]); |
|
|
798 | close (respipe [1]); |
|
|
799 | create_pipe (); |
|
|
800 | |
|
|
801 | atfork_parent (); |
|
|
802 | } |
|
|
803 | |
509 | #define dREQ \ |
804 | #define dREQ \ |
510 | aio_req req; \ |
805 | aio_req req; \ |
511 | \ |
806 | \ |
512 | if (SvOK (callback) && !SvROK (callback)) \ |
807 | if (SvOK (callback) && !SvROK (callback)) \ |
513 | croak ("clalback must be undef or of reference type"); \ |
808 | croak ("callback must be undef or of reference type"); \ |
514 | \ |
809 | \ |
515 | Newz (0, req, 1, aio_cb); \ |
810 | Newz (0, req, 1, aio_cb); \ |
516 | if (!req) \ |
811 | if (!req) \ |
517 | croak ("out of memory during aio_req allocation"); \ |
812 | croak ("out of memory during aio_req allocation"); \ |
518 | \ |
813 | \ |
519 | req->callback = newSVsv (callback); |
814 | req->callback = newSVsv (callback) |
|
|
815 | |
|
|
816 | #define REQ_SEND \ |
|
|
817 | req_send (req); \ |
|
|
818 | \ |
|
|
819 | if (GIMME_V != G_VOID) \ |
|
|
820 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
520 | |
821 | |
521 | MODULE = IO::AIO PACKAGE = IO::AIO |
822 | MODULE = IO::AIO PACKAGE = IO::AIO |
522 | |
823 | |
523 | PROTOTYPES: ENABLE |
824 | PROTOTYPES: ENABLE |
524 | |
825 | |
525 | BOOT: |
826 | BOOT: |
526 | { |
827 | { |
|
|
828 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
829 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
830 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
831 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
832 | |
527 | create_pipe (); |
833 | create_pipe (); |
528 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
834 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
529 | } |
835 | } |
530 | |
836 | |
531 | void |
837 | void |
532 | min_parallel(nthreads) |
838 | min_parallel (nthreads) |
533 | int nthreads |
839 | int nthreads |
534 | PROTOTYPE: $ |
840 | PROTOTYPE: $ |
535 | |
841 | |
536 | void |
842 | void |
537 | max_parallel(nthreads) |
843 | max_parallel (nthreads) |
538 | int nthreads |
844 | int nthreads |
539 | PROTOTYPE: $ |
845 | PROTOTYPE: $ |
540 | |
846 | |
541 | int |
847 | int |
542 | max_outstanding(nreqs) |
848 | max_outstanding (nreqs) |
543 | int nreqs |
849 | int nreqs |
544 | PROTOTYPE: $ |
850 | PROTOTYPE: $ |
545 | CODE: |
851 | CODE: |
546 | RETVAL = max_outstanding; |
852 | RETVAL = max_outstanding; |
547 | max_outstanding = nreqs; |
853 | max_outstanding = nreqs; |
548 | |
854 | |
549 | void |
855 | void |
550 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
856 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
551 | SV * pathname |
857 | SV * pathname |
552 | int flags |
858 | int flags |
553 | int mode |
859 | int mode |
554 | SV * callback |
860 | SV * callback |
555 | PROTOTYPE: $$$;$ |
861 | PROTOTYPE: $$$;$ |
556 | CODE: |
862 | PPCODE: |
557 | { |
863 | { |
558 | dREQ; |
864 | dREQ; |
559 | |
865 | |
560 | req->type = REQ_OPEN; |
866 | req->type = REQ_OPEN; |
561 | req->data = newSVsv (pathname); |
867 | req->data = newSVsv (pathname); |
562 | req->dataptr = SvPVbyte_nolen (req->data); |
868 | req->dataptr = SvPVbyte_nolen (req->data); |
563 | req->fd = flags; |
869 | req->fd = flags; |
564 | req->mode = mode; |
870 | req->mode = mode; |
565 | |
871 | |
566 | send_req (req); |
872 | REQ_SEND; |
567 | } |
873 | } |
568 | |
874 | |
569 | void |
875 | void |
570 | aio_close(fh,callback=&PL_sv_undef) |
876 | aio_close (fh,callback=&PL_sv_undef) |
571 | SV * fh |
877 | SV * fh |
572 | SV * callback |
878 | SV * callback |
573 | PROTOTYPE: $;$ |
879 | PROTOTYPE: $;$ |
574 | ALIAS: |
880 | ALIAS: |
575 | aio_close = REQ_CLOSE |
881 | aio_close = REQ_CLOSE |
576 | aio_fsync = REQ_FSYNC |
882 | aio_fsync = REQ_FSYNC |
577 | aio_fdatasync = REQ_FDATASYNC |
883 | aio_fdatasync = REQ_FDATASYNC |
578 | CODE: |
884 | PPCODE: |
579 | { |
885 | { |
580 | dREQ; |
886 | dREQ; |
581 | |
887 | |
582 | req->type = ix; |
888 | req->type = ix; |
583 | req->fh = newSVsv (fh); |
889 | req->fh = newSVsv (fh); |
584 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
890 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
585 | |
891 | |
586 | send_req (req); |
892 | REQ_SEND (req); |
587 | } |
893 | } |
588 | |
894 | |
589 | void |
895 | void |
590 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
896 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
591 | SV * fh |
897 | SV * fh |
592 | UV offset |
898 | UV offset |
593 | IV length |
899 | UV length |
594 | SV * data |
900 | SV * data |
595 | IV dataoffset |
901 | UV dataoffset |
596 | SV * callback |
902 | SV * callback |
597 | ALIAS: |
903 | ALIAS: |
598 | aio_read = REQ_READ |
904 | aio_read = REQ_READ |
599 | aio_write = REQ_WRITE |
905 | aio_write = REQ_WRITE |
600 | PROTOTYPE: $$$$$;$ |
906 | PROTOTYPE: $$$$$;$ |
601 | CODE: |
907 | PPCODE: |
602 | { |
908 | { |
603 | aio_req req; |
909 | aio_req req; |
604 | STRLEN svlen; |
910 | STRLEN svlen; |
605 | char *svptr = SvPVbyte (data, svlen); |
911 | char *svptr = SvPVbyte (data, svlen); |
606 | |
912 | |
… | |
… | |
644 | { |
950 | { |
645 | SvREADONLY_on (data); |
951 | SvREADONLY_on (data); |
646 | req->data2ptr = (void *)data; |
952 | req->data2ptr = (void *)data; |
647 | } |
953 | } |
648 | |
954 | |
649 | send_req (req); |
955 | REQ_SEND; |
650 | } |
956 | } |
651 | } |
957 | } |
652 | |
958 | |
653 | void |
959 | void |
|
|
960 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
961 | SV * out_fh |
|
|
962 | SV * in_fh |
|
|
963 | UV in_offset |
|
|
964 | UV length |
|
|
965 | SV * callback |
|
|
966 | PROTOTYPE: $$$$;$ |
|
|
967 | PPCODE: |
|
|
968 | { |
|
|
969 | dREQ; |
|
|
970 | |
|
|
971 | req->type = REQ_SENDFILE; |
|
|
972 | req->fh = newSVsv (out_fh); |
|
|
973 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
974 | req->fh2 = newSVsv (in_fh); |
|
|
975 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
976 | req->offset = in_offset; |
|
|
977 | req->length = length; |
|
|
978 | |
|
|
979 | REQ_SEND; |
|
|
980 | } |
|
|
981 | |
|
|
982 | void |
654 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
983 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
655 | SV * fh |
984 | SV * fh |
656 | UV offset |
985 | UV offset |
657 | IV length |
986 | IV length |
658 | SV * callback |
987 | SV * callback |
659 | PROTOTYPE: $$$;$ |
988 | PROTOTYPE: $$$;$ |
660 | CODE: |
989 | PPCODE: |
661 | { |
990 | { |
662 | dREQ; |
991 | dREQ; |
663 | |
992 | |
664 | req->type = REQ_READAHEAD; |
993 | req->type = REQ_READAHEAD; |
665 | req->fh = newSVsv (fh); |
994 | req->fh = newSVsv (fh); |
666 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
995 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
667 | req->offset = offset; |
996 | req->offset = offset; |
668 | req->length = length; |
997 | req->length = length; |
669 | |
998 | |
670 | send_req (req); |
999 | REQ_SEND; |
671 | } |
1000 | } |
672 | |
1001 | |
673 | void |
1002 | void |
674 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1003 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
675 | SV * fh_or_path |
1004 | SV * fh_or_path |
676 | SV * callback |
1005 | SV * callback |
677 | ALIAS: |
1006 | ALIAS: |
678 | aio_stat = REQ_STAT |
1007 | aio_stat = REQ_STAT |
679 | aio_lstat = REQ_LSTAT |
1008 | aio_lstat = REQ_LSTAT |
680 | CODE: |
1009 | PPCODE: |
681 | { |
1010 | { |
682 | dREQ; |
1011 | dREQ; |
683 | |
1012 | |
684 | New (0, req->statdata, 1, Stat_t); |
1013 | New (0, req->statdata, 1, Stat_t); |
685 | if (!req->statdata) |
1014 | if (!req->statdata) |
686 | { |
1015 | { |
687 | free_req (req); |
1016 | req_free (req); |
688 | croak ("out of memory during aio_req->statdata allocation"); |
1017 | croak ("out of memory during aio_req->statdata allocation"); |
689 | } |
1018 | } |
690 | |
1019 | |
691 | if (SvPOK (fh_or_path)) |
1020 | if (SvPOK (fh_or_path)) |
692 | { |
1021 | { |
… | |
… | |
699 | req->type = REQ_FSTAT; |
1028 | req->type = REQ_FSTAT; |
700 | req->fh = newSVsv (fh_or_path); |
1029 | req->fh = newSVsv (fh_or_path); |
701 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1030 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
702 | } |
1031 | } |
703 | |
1032 | |
704 | send_req (req); |
1033 | REQ_SEND; |
705 | } |
1034 | } |
706 | |
1035 | |
707 | void |
1036 | void |
708 | aio_unlink(pathname,callback=&PL_sv_undef) |
1037 | aio_unlink (pathname,callback=&PL_sv_undef) |
709 | SV * pathname |
1038 | SV * pathname |
710 | SV * callback |
1039 | SV * callback |
711 | ALIAS: |
1040 | ALIAS: |
712 | aio_unlink = REQ_UNLINK |
1041 | aio_unlink = REQ_UNLINK |
713 | aio_rmdir = REQ_RMDIR |
1042 | aio_rmdir = REQ_RMDIR |
|
|
1043 | aio_readdir = REQ_READDIR |
714 | CODE: |
1044 | PPCODE: |
715 | { |
1045 | { |
716 | dREQ; |
1046 | dREQ; |
717 | |
1047 | |
718 | req->type = ix; |
1048 | req->type = ix; |
719 | req->data = newSVsv (pathname); |
1049 | req->data = newSVsv (pathname); |
720 | req->dataptr = SvPVbyte_nolen (req->data); |
1050 | req->dataptr = SvPVbyte_nolen (req->data); |
721 | |
1051 | |
722 | send_req (req); |
1052 | REQ_SEND; |
723 | } |
1053 | } |
724 | |
1054 | |
725 | void |
1055 | void |
726 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1056 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
727 | SV * oldpath |
1057 | SV * oldpath |
728 | SV * newpath |
1058 | SV * newpath |
729 | SV * callback |
1059 | SV * callback |
|
|
1060 | ALIAS: |
|
|
1061 | aio_link = REQ_LINK |
|
|
1062 | aio_symlink = REQ_SYMLINK |
|
|
1063 | aio_rename = REQ_RENAME |
730 | CODE: |
1064 | PPCODE: |
731 | { |
1065 | { |
732 | dREQ; |
1066 | dREQ; |
733 | |
1067 | |
734 | req->type = REQ_SYMLINK; |
1068 | req->type = ix; |
735 | req->fh = newSVsv (oldpath); |
1069 | req->fh = newSVsv (oldpath); |
736 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1070 | req->data2ptr = SvPVbyte_nolen (req->fh); |
737 | req->data = newSVsv (newpath); |
1071 | req->data = newSVsv (newpath); |
738 | req->dataptr = SvPVbyte_nolen (req->data); |
1072 | req->dataptr = SvPVbyte_nolen (req->data); |
739 | |
1073 | |
740 | send_req (req); |
1074 | REQ_SEND; |
741 | } |
1075 | } |
742 | |
1076 | |
743 | void |
1077 | void |
|
|
1078 | aio_group (callback=&PL_sv_undef) |
|
|
1079 | SV * callback |
|
|
1080 | PROTOTYPE: ;& |
|
|
1081 | PPCODE: |
|
|
1082 | { |
|
|
1083 | dREQ; |
|
|
1084 | req->type = REQ_GROUP; |
|
|
1085 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1086 | } |
|
|
1087 | |
|
|
1088 | void |
744 | flush() |
1089 | flush () |
745 | PROTOTYPE: |
1090 | PROTOTYPE: |
746 | CODE: |
1091 | CODE: |
747 | while (nreqs) |
1092 | while (nreqs) |
748 | { |
1093 | { |
749 | poll_wait (); |
1094 | poll_wait (); |
… | |
… | |
789 | CODE: |
1134 | CODE: |
790 | RETVAL = nreqs; |
1135 | RETVAL = nreqs; |
791 | OUTPUT: |
1136 | OUTPUT: |
792 | RETVAL |
1137 | RETVAL |
793 | |
1138 | |
|
|
1139 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1140 | |
|
|
1141 | void |
|
|
1142 | cancel (aio_req_ornot req) |
|
|
1143 | PROTOTYPE: |
|
|
1144 | CODE: |
|
|
1145 | req->cancelled = 1; |
|
|
1146 | |