1 | #define _XOPEN_SOURCE 500 |
1 | #define _REENTRANT 1 |
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2 | #include <errno.h> |
2 | |
3 | |
3 | #include "EXTERN.h" |
4 | #include "EXTERN.h" |
4 | #include "perl.h" |
5 | #include "perl.h" |
5 | #include "XSUB.h" |
6 | #include "XSUB.h" |
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7 | |
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8 | #include "autoconf/config.h" |
6 | |
9 | |
7 | #include <sys/types.h> |
10 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
11 | #include <sys/stat.h> |
9 | |
12 | |
10 | #include <unistd.h> |
13 | #include <unistd.h> |
11 | #include <fcntl.h> |
14 | #include <fcntl.h> |
12 | #include <signal.h> |
15 | #include <signal.h> |
13 | #include <sched.h> |
16 | #include <sched.h> |
14 | #if __linux |
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15 | #include <sys/syscall.h> |
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16 | #endif |
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17 | |
17 | |
18 | #include <pthread.h> |
18 | #include <pthread.h> |
19 | |
19 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
… | |
… | |
29 | |
29 | |
30 | enum { |
30 | enum { |
31 | REQ_QUIT, |
31 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
32 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
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36 | REQ_UNLINK, REQ_RMDIR, |
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37 | REQ_SYMLINK, |
36 | }; |
38 | }; |
37 | |
39 | |
38 | typedef struct aio_cb { |
40 | typedef struct aio_cb { |
39 | struct aio_cb *volatile next; |
41 | struct aio_cb *volatile next; |
40 | |
42 | |
… | |
… | |
44 | off_t offset; |
46 | off_t offset; |
45 | size_t length; |
47 | size_t length; |
46 | ssize_t result; |
48 | ssize_t result; |
47 | mode_t mode; /* open */ |
49 | mode_t mode; /* open */ |
48 | int errorno; |
50 | int errorno; |
49 | SV *data, *callback; |
51 | SV *data, *callback, *fh; |
50 | void *dataptr; |
52 | void *dataptr, *data2ptr; |
51 | STRLEN dataoffset; |
53 | STRLEN dataoffset; |
52 | |
54 | |
53 | Stat_t *statdata; |
55 | Stat_t *statdata; |
54 | } aio_cb; |
56 | } aio_cb; |
55 | |
57 | |
56 | typedef aio_cb *aio_req; |
58 | typedef aio_cb *aio_req; |
57 | |
59 | |
58 | static int started; |
60 | static int started, wanted; |
59 | static volatile int nreqs; |
61 | static volatile int nreqs; |
60 | static int max_outstanding = 1<<30; |
62 | static int max_outstanding = 1<<30; |
61 | static int respipe [2]; |
63 | static int respipe [2]; |
62 | |
64 | |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
… | |
… | |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
66 | |
68 | |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
70 | static volatile aio_req ress, rese; /* queue start, queue end */ |
69 | |
71 | |
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72 | static void free_req (aio_req req) |
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73 | { |
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74 | if (req->data) |
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75 | SvREFCNT_dec (req->data); |
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76 | |
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77 | if (req->fh) |
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78 | SvREFCNT_dec (req->fh); |
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79 | |
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80 | if (req->statdata) |
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81 | Safefree (req->statdata); |
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82 | |
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83 | if (req->callback) |
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84 | SvREFCNT_dec (req->callback); |
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85 | |
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86 | Safefree (req); |
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87 | } |
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88 | |
70 | static void |
89 | static void |
71 | poll_wait () |
90 | poll_wait () |
72 | { |
91 | { |
73 | if (nreqs && !ress) |
92 | if (nreqs && !ress) |
74 | { |
93 | { |
… | |
… | |
83 | static int |
102 | static int |
84 | poll_cb () |
103 | poll_cb () |
85 | { |
104 | { |
86 | dSP; |
105 | dSP; |
87 | int count = 0; |
106 | int count = 0; |
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107 | int do_croak = 0; |
88 | aio_req req, prv; |
108 | aio_req req; |
89 | |
109 | |
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110 | for (;;) |
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111 | { |
90 | pthread_mutex_lock (&reslock); |
112 | pthread_mutex_lock (&reslock); |
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113 | req = ress; |
91 | |
114 | |
92 | { |
115 | if (req) |
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116 | { |
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117 | ress = req->next; |
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118 | |
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119 | if (!ress) |
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120 | { |
93 | /* read any signals sent by the worker threads */ |
121 | /* read any signals sent by the worker threads */ |
94 | char buf [32]; |
122 | char buf [32]; |
95 | while (read (respipe [0], buf, 32) > 0) |
123 | while (read (respipe [0], buf, 32) == 32) |
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124 | ; |
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125 | |
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126 | rese = 0; |
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127 | } |
96 | ; |
128 | } |
97 | } |
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98 | |
129 | |
99 | req = ress; |
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100 | ress = rese = 0; |
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101 | |
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102 | pthread_mutex_unlock (&reslock); |
130 | pthread_mutex_unlock (&reslock); |
103 | |
131 | |
104 | while (req) |
132 | if (!req) |
105 | { |
133 | break; |
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134 | |
106 | nreqs--; |
135 | nreqs--; |
107 | |
136 | |
108 | if (req->type == REQ_QUIT) |
137 | if (req->type == REQ_QUIT) |
109 | started--; |
138 | started--; |
110 | else |
139 | else |
111 | { |
140 | { |
112 | int errorno = errno; |
141 | int errorno = errno; |
113 | errno = req->errorno; |
142 | errno = req->errorno; |
114 | |
143 | |
115 | if (req->type == REQ_READ) |
144 | if (req->type == REQ_READ) |
116 | SvCUR_set (req->data, req->dataoffset |
145 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
117 | + req->result > 0 ? req->result : 0); |
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118 | |
146 | |
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147 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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148 | SvREADONLY_off (req->data); |
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149 | |
119 | if (req->data) |
150 | if (req->statdata) |
120 | SvREFCNT_dec (req->data); |
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121 | |
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122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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123 | { |
151 | { |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
152 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
125 | PL_laststatval = req->result; |
153 | PL_laststatval = req->result; |
126 | PL_statcache = *(req->statdata); |
154 | PL_statcache = *(req->statdata); |
127 | |
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128 | Safefree (req->statdata); |
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129 | } |
155 | } |
130 | |
156 | |
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157 | ENTER; |
131 | PUSHMARK (SP); |
158 | PUSHMARK (SP); |
132 | XPUSHs (sv_2mortal (newSViv (req->result))); |
159 | XPUSHs (sv_2mortal (newSViv (req->result))); |
133 | |
160 | |
134 | if (req->type == REQ_OPEN) |
161 | if (req->type == REQ_OPEN) |
135 | { |
162 | { |
… | |
… | |
138 | |
165 | |
139 | PUTBACK; |
166 | PUTBACK; |
140 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
167 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
141 | SPAGAIN; |
168 | SPAGAIN; |
142 | |
169 | |
143 | fh = POPs; |
170 | fh = SvREFCNT_inc (POPs); |
144 | |
171 | |
145 | PUSHMARK (SP); |
172 | PUSHMARK (SP); |
146 | XPUSHs (fh); |
173 | XPUSHs (sv_2mortal (fh)); |
147 | } |
174 | } |
148 | |
175 | |
149 | if (SvOK (req->callback)) |
176 | if (SvOK (req->callback)) |
150 | { |
177 | { |
151 | PUTBACK; |
178 | PUTBACK; |
152 | call_sv (req->callback, G_VOID | G_EVAL); |
179 | call_sv (req->callback, G_VOID | G_EVAL); |
153 | SPAGAIN; |
180 | SPAGAIN; |
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181 | |
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182 | if (SvTRUE (ERRSV)) |
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183 | { |
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184 | free_req (req); |
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185 | croak (0); |
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186 | } |
154 | } |
187 | } |
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188 | |
155 | |
189 | LEAVE; |
156 | if (req->callback) |
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157 | SvREFCNT_dec (req->callback); |
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158 | |
190 | |
159 | errno = errorno; |
191 | errno = errorno; |
160 | count++; |
192 | count++; |
161 | } |
193 | } |
162 | |
194 | |
163 | prv = req; |
195 | free_req (req); |
164 | req = req->next; |
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165 | Safefree (prv); |
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166 | |
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167 | /* TODO: croak on errors? */ |
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168 | } |
196 | } |
169 | |
197 | |
170 | return count; |
198 | return count; |
171 | } |
199 | } |
172 | |
200 | |
… | |
… | |
179 | pthread_t tid; |
207 | pthread_t tid; |
180 | pthread_attr_t attr; |
208 | pthread_attr_t attr; |
181 | |
209 | |
182 | pthread_attr_init (&attr); |
210 | pthread_attr_init (&attr); |
183 | pthread_attr_setstacksize (&attr, STACKSIZE); |
211 | pthread_attr_setstacksize (&attr, STACKSIZE); |
184 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
212 | // pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
185 | |
213 | |
186 | sigfillset (&fullsigset); |
214 | sigfillset (&fullsigset); |
187 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
215 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
188 | |
216 | |
189 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
217 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
… | |
… | |
193 | } |
221 | } |
194 | |
222 | |
195 | static void |
223 | static void |
196 | send_req (aio_req req) |
224 | send_req (aio_req req) |
197 | { |
225 | { |
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226 | while (started < wanted && nreqs >= started) |
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227 | start_thread (); |
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228 | |
198 | nreqs++; |
229 | nreqs++; |
199 | |
230 | |
200 | pthread_mutex_lock (&reqlock); |
231 | pthread_mutex_lock (&reqlock); |
201 | |
232 | |
202 | req->next = 0; |
233 | req->next = 0; |
… | |
… | |
210 | reqe = reqs = req; |
241 | reqe = reqs = req; |
211 | |
242 | |
212 | pthread_cond_signal (&reqwait); |
243 | pthread_cond_signal (&reqwait); |
213 | pthread_mutex_unlock (&reqlock); |
244 | pthread_mutex_unlock (&reqlock); |
214 | |
245 | |
215 | while (nreqs > max_outstanding) |
246 | if (nreqs > max_outstanding) |
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247 | for (;;) |
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248 | { |
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249 | poll_cb (); |
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250 | |
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251 | if (nreqs <= max_outstanding) |
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252 | break; |
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253 | |
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254 | poll_wait (); |
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255 | } |
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256 | } |
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257 | |
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258 | static void |
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259 | end_thread (void) |
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260 | { |
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261 | aio_req req; |
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262 | Newz (0, req, 1, aio_cb); |
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263 | req->type = REQ_QUIT; |
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264 | |
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265 | send_req (req); |
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266 | } |
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267 | |
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268 | static void min_parallel (int nthreads) |
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269 | { |
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270 | if (wanted < nthreads) |
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271 | wanted = nthreads; |
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272 | } |
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273 | |
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274 | static void max_parallel (int nthreads) |
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275 | { |
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276 | int cur = started; |
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277 | |
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278 | if (wanted > nthreads) |
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279 | wanted = nthreads; |
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280 | |
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281 | while (cur > wanted) |
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282 | { |
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283 | end_thread (); |
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284 | cur--; |
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285 | } |
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286 | |
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287 | while (started > wanted) |
216 | { |
288 | { |
217 | poll_wait (); |
289 | poll_wait (); |
218 | poll_cb (); |
290 | poll_cb (); |
219 | } |
291 | } |
220 | } |
292 | } |
221 | |
293 | |
222 | static void |
294 | static void create_pipe () |
223 | end_thread (void) |
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224 | { |
295 | { |
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296 | if (pipe (respipe)) |
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297 | croak ("unable to initialize result pipe"); |
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298 | |
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299 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
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300 | croak ("cannot set result pipe to nonblocking mode"); |
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301 | |
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302 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
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303 | croak ("cannot set result pipe to nonblocking mode"); |
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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 | { |
225 | aio_req req; |
320 | aio_req prv; |
226 | New (0, req, 1, aio_cb); |
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227 | req->type = REQ_QUIT; |
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228 | |
321 | |
229 | send_req (req); |
322 | started = 0; |
230 | } |
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231 | |
323 | |
232 | static void |
324 | while (reqs) |
233 | read_write (int dowrite, int fd, off_t offset, size_t length, |
325 | { |
234 | SV *data, STRLEN dataoffset, SV *callback) |
326 | prv = reqs; |
235 | { |
327 | reqs = prv->next; |
236 | aio_req req; |
328 | free_req (prv); |
237 | STRLEN svlen; |
329 | } |
238 | char *svptr = SvPV (data, svlen); |
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239 | |
330 | |
240 | SvUPGRADE (data, SVt_PV); |
331 | reqs = reqe = 0; |
241 | SvPOK_on (data); |
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; |
242 | |
341 | |
243 | if (dataoffset < 0) |
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 | } |
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348 | |
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349 | /*****************************************************************************/ |
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350 | /* work around various missing functions */ |
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351 | |
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352 | #if !HAVE_PREADWRITE |
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353 | # define pread aio_pread |
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354 | # define pwrite aio_pwrite |
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355 | |
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356 | /* |
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357 | * make our pread/pwrite safe against themselves, but not against |
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358 | * normal read/write by using a mutex. slows down execution a lot, |
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359 | * but that's your problem, not mine. |
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360 | */ |
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361 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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362 | |
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363 | static ssize_t |
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364 | pread (int fd, void *buf, size_t count, off_t offset) |
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365 | { |
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366 | ssize_t res; |
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367 | off_t ooffset; |
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368 | |
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369 | pthread_mutex_lock (&iolock); |
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370 | ooffset = lseek (fd, 0, SEEK_CUR); |
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371 | lseek (fd, offset, SEEK_SET); |
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372 | res = read (fd, buf, count); |
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373 | lseek (fd, ooffset, SEEK_SET); |
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374 | pthread_mutex_unlock (&iolock); |
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375 | |
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376 | return res; |
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377 | } |
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378 | |
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379 | static ssize_t |
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380 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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381 | { |
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382 | ssize_t res; |
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383 | off_t ooffset; |
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384 | |
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385 | pthread_mutex_lock (&iolock); |
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386 | ooffset = lseek (fd, 0, SEEK_CUR); |
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387 | lseek (fd, offset, SEEK_SET); |
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388 | res = write (fd, buf, count); |
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389 | lseek (fd, offset, SEEK_SET); |
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390 | pthread_mutex_unlock (&iolock); |
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391 | |
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392 | return res; |
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393 | } |
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394 | #endif |
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395 | |
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396 | #if !HAVE_FDATASYNC |
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397 | # define fdatasync fsync |
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398 | #endif |
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399 | |
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400 | #if !HAVE_READAHEAD |
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401 | # define readahead aio_readahead |
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402 | |
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403 | static char readahead_buf[4096]; |
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404 | |
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405 | static ssize_t |
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406 | readahead (int fd, off_t offset, size_t count) |
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407 | { |
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408 | while (count > 0) |
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409 | { |
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410 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
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411 | |
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412 | pread (fd, readahead_buf, len, offset); |
244 | dataoffset += svlen; |
413 | offset += len; |
245 | |
414 | count -= len; |
246 | if (dataoffset < 0 || dataoffset > svlen) |
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247 | croak ("data offset outside of string"); |
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248 | |
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249 | if (dowrite) |
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250 | { |
415 | } |
251 | /* write: check length and adjust. */ |
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252 | if (length < 0 || length + dataoffset > svlen) |
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253 | length = svlen - dataoffset; |
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254 | } |
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255 | else |
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256 | { |
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257 | /* read: grow scalar as necessary */ |
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258 | svptr = SvGROW (data, length + dataoffset); |
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259 | } |
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260 | |
416 | |
261 | if (length < 0) |
417 | errno = 0; |
262 | croak ("length must not be negative"); |
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263 | |
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264 | Newz (0, req, 1, aio_cb); |
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265 | |
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266 | if (!req) |
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267 | croak ("out of memory during aio_req allocation"); |
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268 | |
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269 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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270 | req->fd = fd; |
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271 | req->offset = offset; |
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272 | req->length = length; |
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273 | req->data = SvREFCNT_inc (data); |
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274 | req->dataptr = (char *)svptr + dataoffset; |
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275 | req->callback = SvREFCNT_inc (callback); |
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276 | |
|
|
277 | send_req (req); |
|
|
278 | } |
418 | } |
|
|
419 | #endif |
|
|
420 | |
|
|
421 | /*****************************************************************************/ |
279 | |
422 | |
280 | static void * |
423 | static void * |
281 | aio_proc (void *thr_arg) |
424 | aio_proc (void *thr_arg) |
282 | { |
425 | { |
283 | aio_req req; |
426 | aio_req req; |
… | |
… | |
311 | |
454 | |
312 | switch (type) |
455 | switch (type) |
313 | { |
456 | { |
314 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
457 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
315 | case REQ_WRITE: req->result = pwrite (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; |
316 | #if SYS_readahead |
459 | |
317 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
460 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
318 | #else |
|
|
319 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
320 | #endif |
|
|
321 | |
461 | |
322 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
462 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
323 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
463 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
324 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
464 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
325 | |
465 | |
326 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
466 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
327 | case REQ_CLOSE: req->result = close (req->fd); break; |
467 | case REQ_CLOSE: req->result = close (req->fd); break; |
328 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
468 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
469 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
470 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
329 | |
471 | |
|
|
472 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
330 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
473 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
331 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
332 | |
474 | |
333 | case REQ_QUIT: |
475 | case REQ_QUIT: |
334 | break; |
476 | break; |
335 | |
477 | |
336 | default: |
478 | default: |
… | |
… | |
362 | while (type != REQ_QUIT); |
504 | while (type != REQ_QUIT); |
363 | |
505 | |
364 | return 0; |
506 | return 0; |
365 | } |
507 | } |
366 | |
508 | |
|
|
509 | #define dREQ \ |
|
|
510 | aio_req req; \ |
|
|
511 | \ |
|
|
512 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
513 | croak ("clalback must be undef or of reference type"); \ |
|
|
514 | \ |
|
|
515 | Newz (0, req, 1, aio_cb); \ |
|
|
516 | if (!req) \ |
|
|
517 | croak ("out of memory during aio_req allocation"); \ |
|
|
518 | \ |
|
|
519 | req->callback = newSVsv (callback); |
|
|
520 | |
367 | MODULE = IO::AIO PACKAGE = IO::AIO |
521 | MODULE = IO::AIO PACKAGE = IO::AIO |
368 | |
522 | |
369 | PROTOTYPES: ENABLE |
523 | PROTOTYPES: ENABLE |
370 | |
524 | |
371 | BOOT: |
525 | BOOT: |
372 | { |
526 | { |
373 | if (pipe (respipe)) |
527 | create_pipe (); |
374 | croak ("unable to initialize result pipe"); |
528 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
375 | |
|
|
376 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
377 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
378 | |
|
|
379 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
380 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
381 | } |
529 | } |
382 | |
530 | |
383 | void |
531 | void |
384 | min_parallel(nthreads) |
532 | min_parallel(nthreads) |
385 | int nthreads |
533 | int nthreads |
386 | PROTOTYPE: $ |
534 | PROTOTYPE: $ |
387 | CODE: |
|
|
388 | while (nthreads > started) |
|
|
389 | start_thread (); |
|
|
390 | |
535 | |
391 | void |
536 | void |
392 | max_parallel(nthreads) |
537 | max_parallel(nthreads) |
393 | int nthreads |
538 | int nthreads |
394 | PROTOTYPE: $ |
539 | PROTOTYPE: $ |
395 | CODE: |
|
|
396 | { |
|
|
397 | int cur = started; |
|
|
398 | while (cur > nthreads) |
|
|
399 | { |
|
|
400 | end_thread (); |
|
|
401 | cur--; |
|
|
402 | } |
|
|
403 | |
|
|
404 | while (started > nthreads) |
|
|
405 | { |
|
|
406 | poll_wait (); |
|
|
407 | poll_cb (); |
|
|
408 | } |
|
|
409 | } |
|
|
410 | |
540 | |
411 | int |
541 | int |
412 | max_outstanding(nreqs) |
542 | max_outstanding(nreqs) |
413 | int nreqs |
543 | int nreqs |
414 | PROTOTYPE: $ |
544 | PROTOTYPE: $ |
… | |
… | |
423 | int mode |
553 | int mode |
424 | SV * callback |
554 | SV * callback |
425 | PROTOTYPE: $$$;$ |
555 | PROTOTYPE: $$$;$ |
426 | CODE: |
556 | CODE: |
427 | { |
557 | { |
428 | aio_req req; |
558 | dREQ; |
429 | |
|
|
430 | Newz (0, req, 1, aio_cb); |
|
|
431 | |
|
|
432 | if (!req) |
|
|
433 | croak ("out of memory during aio_req allocation"); |
|
|
434 | |
559 | |
435 | req->type = REQ_OPEN; |
560 | req->type = REQ_OPEN; |
436 | req->data = newSVsv (pathname); |
561 | req->data = newSVsv (pathname); |
437 | req->dataptr = SvPV_nolen (req->data); |
562 | req->dataptr = SvPVbyte_nolen (req->data); |
438 | req->fd = flags; |
563 | req->fd = flags; |
439 | req->mode = mode; |
564 | req->mode = mode; |
440 | req->callback = SvREFCNT_inc (callback); |
|
|
441 | |
565 | |
442 | send_req (req); |
566 | send_req (req); |
443 | } |
567 | } |
444 | |
568 | |
445 | void |
569 | void |
446 | aio_close(fh,callback=&PL_sv_undef) |
570 | aio_close(fh,callback=&PL_sv_undef) |
447 | InputStream fh |
571 | SV * fh |
448 | SV * callback |
572 | SV * callback |
449 | PROTOTYPE: $;$ |
573 | PROTOTYPE: $;$ |
450 | ALIAS: |
574 | ALIAS: |
451 | aio_close = REQ_CLOSE |
575 | aio_close = REQ_CLOSE |
452 | aio_fsync = REQ_FSYNC |
576 | aio_fsync = REQ_FSYNC |
453 | aio_fdatasync = REQ_FDATASYNC |
577 | aio_fdatasync = REQ_FDATASYNC |
454 | CODE: |
578 | CODE: |
455 | { |
579 | { |
456 | aio_req req; |
580 | dREQ; |
457 | |
|
|
458 | Newz (0, req, 1, aio_cb); |
|
|
459 | |
|
|
460 | if (!req) |
|
|
461 | croak ("out of memory during aio_req allocation"); |
|
|
462 | |
581 | |
463 | req->type = ix; |
582 | req->type = ix; |
|
|
583 | req->fh = newSVsv (fh); |
464 | req->fd = PerlIO_fileno (fh); |
584 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
465 | req->callback = SvREFCNT_inc (callback); |
|
|
466 | |
585 | |
467 | send_req (req); |
586 | send_req (req); |
468 | } |
587 | } |
469 | |
588 | |
470 | void |
589 | void |
471 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
590 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
472 | InputStream fh |
591 | SV * fh |
473 | UV offset |
592 | UV offset |
474 | IV length |
593 | IV length |
475 | SV * data |
594 | SV * data |
476 | IV dataoffset |
595 | IV dataoffset |
477 | SV * callback |
596 | SV * callback |
|
|
597 | ALIAS: |
|
|
598 | aio_read = REQ_READ |
|
|
599 | aio_write = REQ_WRITE |
478 | PROTOTYPE: $$$$$;$ |
600 | PROTOTYPE: $$$$$;$ |
479 | CODE: |
601 | CODE: |
480 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
602 | { |
|
|
603 | aio_req req; |
|
|
604 | STRLEN svlen; |
|
|
605 | char *svptr = SvPVbyte (data, svlen); |
481 | |
606 | |
482 | void |
607 | SvUPGRADE (data, SVt_PV); |
483 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
608 | SvPOK_on (data); |
484 | OutputStream fh |
609 | |
485 | UV offset |
610 | if (dataoffset < 0) |
486 | IV length |
611 | dataoffset += svlen; |
487 | SV * data |
612 | |
488 | IV dataoffset |
613 | if (dataoffset < 0 || dataoffset > svlen) |
489 | SV * callback |
614 | croak ("data offset outside of string"); |
490 | PROTOTYPE: $$$$$;$ |
615 | |
491 | CODE: |
616 | if (ix == REQ_WRITE) |
492 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
617 | { |
|
|
618 | /* write: check length and adjust. */ |
|
|
619 | if (length < 0 || length + dataoffset > svlen) |
|
|
620 | length = svlen - dataoffset; |
|
|
621 | } |
|
|
622 | else |
|
|
623 | { |
|
|
624 | /* read: grow scalar as necessary */ |
|
|
625 | svptr = SvGROW (data, length + dataoffset); |
|
|
626 | } |
|
|
627 | |
|
|
628 | if (length < 0) |
|
|
629 | croak ("length must not be negative"); |
|
|
630 | |
|
|
631 | { |
|
|
632 | dREQ; |
|
|
633 | |
|
|
634 | req->type = ix; |
|
|
635 | req->fh = newSVsv (fh); |
|
|
636 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
637 | : IoOFP (sv_2io (fh))); |
|
|
638 | req->offset = offset; |
|
|
639 | req->length = length; |
|
|
640 | req->data = SvREFCNT_inc (data); |
|
|
641 | req->dataptr = (char *)svptr + dataoffset; |
|
|
642 | |
|
|
643 | if (!SvREADONLY (data)) |
|
|
644 | { |
|
|
645 | SvREADONLY_on (data); |
|
|
646 | req->data2ptr = (void *)data; |
|
|
647 | } |
|
|
648 | |
|
|
649 | send_req (req); |
|
|
650 | } |
|
|
651 | } |
493 | |
652 | |
494 | void |
653 | void |
495 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
654 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
496 | InputStream fh |
655 | SV * fh |
497 | UV offset |
656 | UV offset |
498 | IV length |
657 | IV length |
499 | SV * callback |
658 | SV * callback |
500 | PROTOTYPE: $$$;$ |
659 | PROTOTYPE: $$$;$ |
501 | CODE: |
660 | CODE: |
502 | { |
661 | { |
503 | aio_req req; |
662 | dREQ; |
504 | |
|
|
505 | if (length < 0) |
|
|
506 | croak ("length must not be negative"); |
|
|
507 | |
|
|
508 | Newz (0, req, 1, aio_cb); |
|
|
509 | |
|
|
510 | if (!req) |
|
|
511 | croak ("out of memory during aio_req allocation"); |
|
|
512 | |
663 | |
513 | req->type = REQ_READAHEAD; |
664 | req->type = REQ_READAHEAD; |
|
|
665 | req->fh = newSVsv (fh); |
514 | req->fd = PerlIO_fileno (fh); |
666 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
515 | req->offset = offset; |
667 | req->offset = offset; |
516 | req->length = length; |
668 | req->length = length; |
517 | req->callback = SvREFCNT_inc (callback); |
|
|
518 | |
669 | |
519 | send_req (req); |
670 | send_req (req); |
520 | } |
671 | } |
521 | |
672 | |
522 | void |
673 | void |
… | |
… | |
526 | ALIAS: |
677 | ALIAS: |
527 | aio_stat = REQ_STAT |
678 | aio_stat = REQ_STAT |
528 | aio_lstat = REQ_LSTAT |
679 | aio_lstat = REQ_LSTAT |
529 | CODE: |
680 | CODE: |
530 | { |
681 | { |
531 | aio_req req; |
682 | dREQ; |
532 | |
|
|
533 | Newz (0, req, 1, aio_cb); |
|
|
534 | |
|
|
535 | if (!req) |
|
|
536 | croak ("out of memory during aio_req allocation"); |
|
|
537 | |
683 | |
538 | New (0, req->statdata, 1, Stat_t); |
684 | New (0, req->statdata, 1, Stat_t); |
539 | |
|
|
540 | if (!req->statdata) |
685 | if (!req->statdata) |
|
|
686 | { |
|
|
687 | free_req (req); |
541 | croak ("out of memory during aio_req->statdata allocation"); |
688 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
689 | } |
542 | |
690 | |
543 | if (SvPOK (fh_or_path)) |
691 | if (SvPOK (fh_or_path)) |
544 | { |
692 | { |
545 | req->type = ix; |
693 | req->type = ix; |
546 | req->data = newSVsv (fh_or_path); |
694 | req->data = newSVsv (fh_or_path); |
547 | req->dataptr = SvPV_nolen (req->data); |
695 | req->dataptr = SvPVbyte_nolen (req->data); |
548 | } |
696 | } |
549 | else |
697 | else |
550 | { |
698 | { |
551 | req->type = REQ_FSTAT; |
699 | req->type = REQ_FSTAT; |
|
|
700 | req->fh = newSVsv (fh_or_path); |
552 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
701 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
553 | } |
702 | } |
554 | |
|
|
555 | req->callback = SvREFCNT_inc (callback); |
|
|
556 | |
703 | |
557 | send_req (req); |
704 | send_req (req); |
558 | } |
705 | } |
559 | |
706 | |
560 | void |
707 | void |
561 | aio_unlink(pathname,callback=&PL_sv_undef) |
708 | aio_unlink(pathname,callback=&PL_sv_undef) |
562 | SV * pathname |
709 | SV * pathname |
563 | SV * callback |
710 | SV * callback |
|
|
711 | ALIAS: |
|
|
712 | aio_unlink = REQ_UNLINK |
|
|
713 | aio_rmdir = REQ_RMDIR |
564 | CODE: |
714 | CODE: |
565 | { |
715 | { |
566 | aio_req req; |
716 | dREQ; |
567 | |
717 | |
568 | Newz (0, req, 1, aio_cb); |
718 | req->type = ix; |
|
|
719 | req->data = newSVsv (pathname); |
|
|
720 | req->dataptr = SvPVbyte_nolen (req->data); |
569 | |
721 | |
570 | if (!req) |
722 | send_req (req); |
571 | croak ("out of memory during aio_req allocation"); |
723 | } |
|
|
724 | |
|
|
725 | void |
|
|
726 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
|
|
727 | SV * oldpath |
|
|
728 | SV * newpath |
|
|
729 | SV * callback |
|
|
730 | CODE: |
|
|
731 | { |
|
|
732 | dREQ; |
572 | |
733 | |
573 | req->type = REQ_UNLINK; |
734 | req->type = REQ_SYMLINK; |
|
|
735 | req->fh = newSVsv (oldpath); |
|
|
736 | req->data2ptr = SvPVbyte_nolen (req->fh); |
574 | req->data = newSVsv (pathname); |
737 | req->data = newSVsv (newpath); |
575 | req->dataptr = SvPV_nolen (req->data); |
738 | req->dataptr = SvPVbyte_nolen (req->data); |
576 | req->callback = SvREFCNT_inc (callback); |
|
|
577 | |
739 | |
578 | send_req (req); |
740 | send_req (req); |
579 | } |
741 | } |
580 | |
742 | |
581 | void |
743 | void |