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1 | #define _REENTRANT 1 |
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2 | #include <errno.h> |
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3 | |
1 | #include "EXTERN.h" |
4 | #include "EXTERN.h" |
2 | #include "perl.h" |
5 | #include "perl.h" |
3 | #include "XSUB.h" |
6 | #include "XSUB.h" |
4 | |
7 | |
5 | #define _XOPEN_SOURCE 500 |
8 | #include "autoconf/config.h" |
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9 | |
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10 | #include <pthread.h> |
6 | |
11 | |
7 | #include <sys/types.h> |
12 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
9 | |
14 | |
10 | #include <unistd.h> |
15 | #include <unistd.h> |
11 | #include <fcntl.h> |
16 | #include <fcntl.h> |
12 | #include <signal.h> |
17 | #include <signal.h> |
13 | #include <sched.h> |
18 | #include <sched.h> |
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19 | |
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20 | #if HAVE_SENDFILE |
14 | #if __linux |
21 | # if __linux |
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22 | # include <sys/sendfile.h> |
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23 | # elif __freebsd |
15 | #include <sys/syscall.h> |
24 | # include <sys/socket.h> |
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25 | # include <sys/uio.h> |
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26 | # elif __hpux |
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27 | # include <sys/socket.h> |
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28 | # endif |
16 | #endif |
29 | #endif |
17 | |
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18 | #include <pthread.h> |
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19 | |
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20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
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21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
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22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
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23 | |
30 | |
24 | #if __ia64 |
31 | #if __ia64 |
25 | # define STACKSIZE 65536 |
32 | # define STACKSIZE 65536 |
26 | #else |
33 | #else |
27 | # define STACKSIZE 4096 |
34 | # define STACKSIZE 4096 |
… | |
… | |
29 | |
36 | |
30 | enum { |
37 | enum { |
31 | REQ_QUIT, |
38 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
39 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
40 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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41 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
42 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
43 | REQ_FSYNC, REQ_FDATASYNC, |
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44 | REQ_UNLINK, REQ_RMDIR, |
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45 | REQ_SYMLINK, |
36 | }; |
46 | }; |
37 | |
47 | |
38 | typedef struct aio_cb { |
48 | typedef struct aio_cb { |
39 | struct aio_cb *volatile next; |
49 | struct aio_cb *volatile next; |
40 | |
50 | |
41 | int type; |
51 | int type; |
42 | |
52 | |
43 | int fd; |
53 | int fd, fd2; |
44 | off_t offset; |
54 | off_t offset; |
45 | size_t length; |
55 | size_t length; |
46 | ssize_t result; |
56 | ssize_t result; |
47 | mode_t mode; /* open */ |
57 | mode_t mode; /* open */ |
48 | int errorno; |
58 | int errorno; |
49 | SV *data, *callback; |
59 | SV *data, *callback; |
50 | void *dataptr; |
60 | SV *fh, *fh2; |
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61 | void *dataptr, *data2ptr; |
51 | STRLEN dataoffset; |
62 | STRLEN dataoffset; |
52 | |
63 | |
53 | Stat_t *statdata; |
64 | Stat_t *statdata; |
54 | } aio_cb; |
65 | } aio_cb; |
55 | |
66 | |
56 | typedef aio_cb *aio_req; |
67 | typedef aio_cb *aio_req; |
57 | |
68 | |
58 | static int started; |
69 | static int started, wanted; |
59 | static int nreqs; |
70 | static volatile int nreqs; |
60 | static int max_outstanding = 1<<30; |
71 | static int max_outstanding = 1<<30; |
61 | static int respipe [2]; |
72 | static int respipe [2]; |
62 | |
73 | |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
74 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
75 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
76 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
66 | |
77 | |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
78 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
79 | static volatile aio_req ress, rese; /* queue start, queue end */ |
69 | |
80 | |
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81 | static void free_req (aio_req req) |
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82 | { |
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83 | if (req->data) |
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84 | SvREFCNT_dec (req->data); |
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85 | |
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86 | if (req->fh) |
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87 | SvREFCNT_dec (req->fh); |
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88 | |
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89 | if (req->fh2) |
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90 | SvREFCNT_dec (req->fh2); |
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91 | |
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92 | if (req->statdata) |
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93 | Safefree (req->statdata); |
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94 | |
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95 | if (req->callback) |
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96 | SvREFCNT_dec (req->callback); |
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97 | |
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98 | Safefree (req); |
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99 | } |
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100 | |
70 | static void |
101 | static void |
71 | poll_wait () |
102 | poll_wait () |
72 | { |
103 | { |
73 | if (!nreqs) |
104 | if (nreqs && !ress) |
74 | return; |
105 | { |
75 | |
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76 | fd_set rfd; |
106 | fd_set rfd; |
77 | FD_ZERO(&rfd); |
107 | FD_ZERO(&rfd); |
78 | FD_SET(respipe [0], &rfd); |
108 | FD_SET(respipe [0], &rfd); |
79 | |
109 | |
80 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
110 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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111 | } |
81 | } |
112 | } |
82 | |
113 | |
83 | static int |
114 | static int |
84 | poll_cb () |
115 | poll_cb () |
85 | { |
116 | { |
86 | dSP; |
117 | dSP; |
87 | int count = 0; |
118 | int count = 0; |
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119 | int do_croak = 0; |
88 | aio_req req; |
120 | aio_req req; |
89 | |
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90 | { |
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91 | /* read and signals sent by the worker threads */ |
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92 | char buf [32]; |
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93 | while (read (respipe [0], buf, 32) > 0) |
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94 | ; |
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95 | } |
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96 | |
121 | |
97 | for (;;) |
122 | for (;;) |
98 | { |
123 | { |
99 | pthread_mutex_lock (&reslock); |
124 | pthread_mutex_lock (&reslock); |
100 | |
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101 | req = ress; |
125 | req = ress; |
102 | |
126 | |
103 | if (ress) |
127 | if (req) |
104 | { |
128 | { |
105 | ress = ress->next; |
129 | ress = req->next; |
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130 | |
106 | if (!ress) rese = 0; |
131 | if (!ress) |
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132 | { |
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133 | /* read any signals sent by the worker threads */ |
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134 | char buf [32]; |
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135 | while (read (respipe [0], buf, 32) == 32) |
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136 | ; |
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137 | |
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138 | rese = 0; |
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139 | } |
107 | } |
140 | } |
108 | |
141 | |
109 | pthread_mutex_unlock (&reslock); |
142 | pthread_mutex_unlock (&reslock); |
110 | |
143 | |
111 | if (!req) |
144 | if (!req) |
… | |
… | |
119 | { |
152 | { |
120 | int errorno = errno; |
153 | int errorno = errno; |
121 | errno = req->errorno; |
154 | errno = req->errorno; |
122 | |
155 | |
123 | if (req->type == REQ_READ) |
156 | if (req->type == REQ_READ) |
124 | SvCUR_set (req->data, req->dataoffset |
157 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
125 | + req->result > 0 ? req->result : 0); |
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126 | |
158 | |
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159 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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160 | SvREADONLY_off (req->data); |
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161 | |
127 | if (req->data) |
162 | if (req->statdata) |
128 | SvREFCNT_dec (req->data); |
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129 | |
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130 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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131 | { |
163 | { |
132 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
164 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
133 | PL_laststatval = req->result; |
165 | PL_laststatval = req->result; |
134 | PL_statcache = *(req->statdata); |
166 | PL_statcache = *(req->statdata); |
135 | |
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136 | Safefree (req->statdata); |
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137 | } |
167 | } |
138 | |
168 | |
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169 | ENTER; |
139 | PUSHMARK (SP); |
170 | PUSHMARK (SP); |
140 | XPUSHs (sv_2mortal (newSViv (req->result))); |
171 | XPUSHs (sv_2mortal (newSViv (req->result))); |
141 | |
172 | |
142 | if (req->type == REQ_OPEN) |
173 | if (req->type == REQ_OPEN) |
143 | { |
174 | { |
… | |
… | |
146 | |
177 | |
147 | PUTBACK; |
178 | PUTBACK; |
148 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
179 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
149 | SPAGAIN; |
180 | SPAGAIN; |
150 | |
181 | |
151 | fh = POPs; |
182 | fh = SvREFCNT_inc (POPs); |
152 | |
183 | |
153 | PUSHMARK (SP); |
184 | PUSHMARK (SP); |
154 | XPUSHs (fh); |
185 | XPUSHs (sv_2mortal (fh)); |
155 | } |
186 | } |
156 | |
187 | |
157 | if (SvOK (req->callback)) |
188 | if (SvOK (req->callback)) |
158 | { |
189 | { |
159 | PUTBACK; |
190 | PUTBACK; |
160 | call_sv (req->callback, G_VOID | G_EVAL); |
191 | call_sv (req->callback, G_VOID | G_EVAL); |
161 | SPAGAIN; |
192 | SPAGAIN; |
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193 | |
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194 | if (SvTRUE (ERRSV)) |
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195 | { |
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196 | free_req (req); |
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197 | croak (0); |
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198 | } |
162 | } |
199 | } |
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200 | |
163 | |
201 | LEAVE; |
164 | if (req->callback) |
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165 | SvREFCNT_dec (req->callback); |
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166 | |
202 | |
167 | errno = errorno; |
203 | errno = errorno; |
168 | count++; |
204 | count++; |
169 | } |
205 | } |
170 | |
206 | |
171 | Safefree (req); |
207 | free_req (req); |
172 | } |
208 | } |
173 | |
209 | |
174 | return count; |
210 | return count; |
175 | } |
211 | } |
176 | |
212 | |
… | |
… | |
197 | } |
233 | } |
198 | |
234 | |
199 | static void |
235 | static void |
200 | send_req (aio_req req) |
236 | send_req (aio_req req) |
201 | { |
237 | { |
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238 | while (started < wanted && nreqs >= started) |
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239 | start_thread (); |
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240 | |
202 | nreqs++; |
241 | nreqs++; |
203 | |
242 | |
204 | pthread_mutex_lock (&reqlock); |
243 | pthread_mutex_lock (&reqlock); |
205 | |
244 | |
206 | req->next = 0; |
245 | req->next = 0; |
… | |
… | |
214 | reqe = reqs = req; |
253 | reqe = reqs = req; |
215 | |
254 | |
216 | pthread_cond_signal (&reqwait); |
255 | pthread_cond_signal (&reqwait); |
217 | pthread_mutex_unlock (&reqlock); |
256 | pthread_mutex_unlock (&reqlock); |
218 | |
257 | |
219 | while (nreqs > max_outstanding) |
258 | if (nreqs > max_outstanding) |
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259 | for (;;) |
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260 | { |
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261 | poll_cb (); |
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262 | |
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263 | if (nreqs <= max_outstanding) |
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264 | break; |
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265 | |
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266 | poll_wait (); |
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267 | } |
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268 | } |
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269 | |
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270 | static void |
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271 | end_thread (void) |
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272 | { |
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273 | aio_req req; |
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274 | Newz (0, req, 1, aio_cb); |
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275 | req->type = REQ_QUIT; |
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276 | |
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277 | send_req (req); |
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278 | } |
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279 | |
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280 | static void min_parallel (int nthreads) |
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281 | { |
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282 | if (wanted < nthreads) |
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283 | wanted = nthreads; |
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284 | } |
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285 | |
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286 | static void max_parallel (int nthreads) |
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287 | { |
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288 | int cur = started; |
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289 | |
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290 | if (wanted > nthreads) |
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291 | wanted = nthreads; |
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292 | |
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293 | while (cur > wanted) |
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294 | { |
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295 | end_thread (); |
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296 | cur--; |
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297 | } |
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298 | |
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299 | while (started > wanted) |
220 | { |
300 | { |
221 | poll_wait (); |
301 | poll_wait (); |
222 | poll_cb (); |
302 | poll_cb (); |
223 | } |
303 | } |
224 | } |
304 | } |
225 | |
305 | |
226 | static void |
306 | static void create_pipe () |
227 | end_thread (void) |
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228 | { |
307 | { |
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308 | if (pipe (respipe)) |
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309 | croak ("unable to initialize result pipe"); |
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310 | |
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311 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
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312 | croak ("cannot set result pipe to nonblocking mode"); |
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313 | |
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314 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
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315 | croak ("cannot set result pipe to nonblocking mode"); |
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316 | } |
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317 | |
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318 | static void atfork_prepare (void) |
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319 | { |
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320 | pthread_mutex_lock (&reqlock); |
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321 | pthread_mutex_lock (&reslock); |
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322 | } |
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323 | |
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324 | static void atfork_parent (void) |
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325 | { |
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326 | pthread_mutex_unlock (&reslock); |
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327 | pthread_mutex_unlock (&reqlock); |
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328 | } |
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329 | |
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330 | static void atfork_child (void) |
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331 | { |
229 | aio_req req; |
332 | aio_req prv; |
230 | New (0, req, 1, aio_cb); |
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231 | req->type = REQ_QUIT; |
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232 | |
333 | |
233 | send_req (req); |
334 | started = 0; |
234 | } |
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235 | |
335 | |
236 | static void |
336 | while (reqs) |
237 | read_write (int dowrite, int fd, off_t offset, size_t length, |
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238 | SV *data, STRLEN dataoffset, SV *callback) |
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239 | { |
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240 | aio_req req; |
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241 | STRLEN svlen; |
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242 | char *svptr = SvPV (data, svlen); |
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243 | |
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244 | SvUPGRADE (data, SVt_PV); |
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245 | SvPOK_on (data); |
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246 | |
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247 | if (dataoffset < 0) |
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248 | dataoffset += svlen; |
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249 | |
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250 | if (dataoffset < 0 || dataoffset > svlen) |
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251 | croak ("data offset outside of string"); |
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252 | |
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253 | if (dowrite) |
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254 | { |
337 | { |
255 | /* write: check length and adjust. */ |
338 | prv = reqs; |
256 | if (length < 0 || length + dataoffset > svlen) |
339 | reqs = prv->next; |
257 | length = svlen - dataoffset; |
340 | free_req (prv); |
258 | } |
341 | } |
259 | else |
342 | |
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343 | reqs = reqe = 0; |
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344 | |
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345 | while (ress) |
260 | { |
346 | { |
261 | /* read: grow scalar as necessary */ |
347 | prv = ress; |
262 | svptr = SvGROW (data, length + dataoffset); |
348 | ress = prv->next; |
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349 | free_req (prv); |
263 | } |
350 | } |
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351 | |
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352 | ress = rese = 0; |
264 | |
353 | |
265 | if (length < 0) |
354 | close (respipe [0]); |
266 | croak ("length must not be negative"); |
355 | close (respipe [1]); |
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356 | create_pipe (); |
267 | |
357 | |
268 | Newz (0, req, 1, aio_cb); |
358 | atfork_parent (); |
269 | |
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270 | if (!req) |
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271 | croak ("out of memory during aio_req allocation"); |
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272 | |
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273 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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274 | req->fd = fd; |
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275 | req->offset = offset; |
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276 | req->length = length; |
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277 | req->data = SvREFCNT_inc (data); |
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278 | req->dataptr = (char *)svptr + dataoffset; |
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279 | req->callback = SvREFCNT_inc (callback); |
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280 | |
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281 | send_req (req); |
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282 | } |
359 | } |
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360 | |
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361 | /*****************************************************************************/ |
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362 | /* work around various missing functions */ |
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363 | |
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364 | #if !HAVE_PREADWRITE |
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365 | # define pread aio_pread |
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366 | # define pwrite aio_pwrite |
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367 | |
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368 | /* |
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369 | * make our pread/pwrite safe against themselves, but not against |
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370 | * normal read/write by using a mutex. slows down execution a lot, |
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371 | * but that's your problem, not mine. |
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372 | */ |
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373 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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374 | |
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375 | static ssize_t |
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376 | pread (int fd, void *buf, size_t count, off_t offset) |
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377 | { |
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378 | ssize_t res; |
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379 | off_t ooffset; |
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380 | |
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381 | pthread_mutex_lock (&iolock); |
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382 | ooffset = lseek (fd, 0, SEEK_CUR); |
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383 | lseek (fd, offset, SEEK_SET); |
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384 | res = read (fd, buf, count); |
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385 | lseek (fd, ooffset, SEEK_SET); |
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386 | pthread_mutex_unlock (&iolock); |
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387 | |
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388 | return res; |
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389 | } |
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390 | |
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391 | static ssize_t |
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392 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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393 | { |
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394 | ssize_t res; |
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395 | off_t ooffset; |
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396 | |
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397 | pthread_mutex_lock (&iolock); |
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398 | ooffset = lseek (fd, 0, SEEK_CUR); |
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399 | lseek (fd, offset, SEEK_SET); |
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400 | res = write (fd, buf, count); |
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401 | lseek (fd, offset, SEEK_SET); |
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402 | pthread_mutex_unlock (&iolock); |
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403 | |
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404 | return res; |
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405 | } |
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406 | #endif |
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407 | |
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408 | #if !HAVE_FDATASYNC |
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409 | # define fdatasync fsync |
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410 | #endif |
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411 | |
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412 | #if !HAVE_READAHEAD |
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413 | # define readahead aio_readahead |
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414 | |
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415 | static char readahead_buf[4096]; |
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416 | |
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417 | static ssize_t |
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418 | readahead (int fd, off_t offset, size_t count) |
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419 | { |
|
|
420 | while (count > 0) |
|
|
421 | { |
|
|
422 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
423 | |
|
|
424 | pread (fd, readahead_buf, len, offset); |
|
|
425 | offset += len; |
|
|
426 | count -= len; |
|
|
427 | } |
|
|
428 | |
|
|
429 | errno = 0; |
|
|
430 | } |
|
|
431 | #endif |
|
|
432 | |
|
|
433 | /* sendfile always needs emulation */ |
|
|
434 | static ssize_t |
|
|
435 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
436 | { |
|
|
437 | ssize_t res; |
|
|
438 | |
|
|
439 | if (!count) |
|
|
440 | return 0; |
|
|
441 | |
|
|
442 | #if __linux |
|
|
443 | res = sendfile (ofd, ifd, &offset, count); |
|
|
444 | |
|
|
445 | #elif __freebsd |
|
|
446 | /* |
|
|
447 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
448 | * wasted on making it similar to other i/o functions. |
|
|
449 | */ |
|
|
450 | { |
|
|
451 | off_t sbytes; |
|
|
452 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
453 | |
|
|
454 | if (!res && errno == EAGAIN) |
|
|
455 | res = sbytes; |
|
|
456 | } |
|
|
457 | |
|
|
458 | #elif __hpux |
|
|
459 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
460 | |
|
|
461 | #else |
|
|
462 | res = -1; |
|
|
463 | errno = ENOSYS; |
|
|
464 | #endif |
|
|
465 | |
|
|
466 | if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK)) |
|
|
467 | { |
|
|
468 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
469 | char *buf = malloc (4096); |
|
|
470 | res = 0; |
|
|
471 | |
|
|
472 | for (;;) |
|
|
473 | { |
|
|
474 | ssize_t cnt; |
|
|
475 | |
|
|
476 | cnt = pread (ifd, buf, 4096, offset); |
|
|
477 | |
|
|
478 | if (cnt <= 0) |
|
|
479 | { |
|
|
480 | if (cnt && !res) res = -1; |
|
|
481 | break; |
|
|
482 | } |
|
|
483 | |
|
|
484 | cnt = write (ofd, buf, cnt); |
|
|
485 | |
|
|
486 | if (cnt <= 0) |
|
|
487 | { |
|
|
488 | if (cnt && !res) res = -1; |
|
|
489 | break; |
|
|
490 | } |
|
|
491 | |
|
|
492 | offset += cnt; |
|
|
493 | res += cnt; |
|
|
494 | } |
|
|
495 | |
|
|
496 | { |
|
|
497 | int errorno = errno; |
|
|
498 | free (buf); |
|
|
499 | errno = errorno; |
|
|
500 | } |
|
|
501 | } |
|
|
502 | |
|
|
503 | return res; |
|
|
504 | } |
|
|
505 | |
|
|
506 | /*****************************************************************************/ |
283 | |
507 | |
284 | static void * |
508 | static void * |
285 | aio_proc (void *thr_arg) |
509 | aio_proc (void *thr_arg) |
286 | { |
510 | { |
287 | aio_req req; |
511 | aio_req req; |
… | |
… | |
315 | |
539 | |
316 | switch (type) |
540 | switch (type) |
317 | { |
541 | { |
318 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
542 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
319 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
543 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
320 | #if SYS_readahead |
544 | |
321 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
545 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
322 | #else |
546 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
323 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
324 | #endif |
|
|
325 | |
547 | |
326 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
548 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
327 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
549 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
328 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
550 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
329 | |
551 | |
330 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
552 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
331 | case REQ_CLOSE: req->result = close (req->fd); break; |
553 | case REQ_CLOSE: req->result = close (req->fd); break; |
332 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
554 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
555 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
556 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
333 | |
557 | |
|
|
558 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
334 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
559 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
335 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
336 | |
560 | |
337 | case REQ_QUIT: |
561 | case REQ_QUIT: |
338 | break; |
562 | break; |
339 | |
563 | |
340 | default: |
564 | default: |
… | |
… | |
366 | while (type != REQ_QUIT); |
590 | while (type != REQ_QUIT); |
367 | |
591 | |
368 | return 0; |
592 | return 0; |
369 | } |
593 | } |
370 | |
594 | |
|
|
595 | #define dREQ \ |
|
|
596 | aio_req req; \ |
|
|
597 | \ |
|
|
598 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
599 | croak ("clalback must be undef or of reference type"); \ |
|
|
600 | \ |
|
|
601 | Newz (0, req, 1, aio_cb); \ |
|
|
602 | if (!req) \ |
|
|
603 | croak ("out of memory during aio_req allocation"); \ |
|
|
604 | \ |
|
|
605 | req->callback = newSVsv (callback); |
|
|
606 | |
371 | MODULE = IO::AIO PACKAGE = IO::AIO |
607 | MODULE = IO::AIO PACKAGE = IO::AIO |
372 | |
608 | |
373 | PROTOTYPES: ENABLE |
609 | PROTOTYPES: ENABLE |
374 | |
610 | |
375 | BOOT: |
611 | BOOT: |
376 | { |
612 | { |
377 | if (pipe (respipe)) |
613 | create_pipe (); |
378 | croak ("unable to initialize result pipe"); |
614 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
379 | |
|
|
380 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
381 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
382 | |
|
|
383 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
384 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
385 | } |
615 | } |
386 | |
616 | |
387 | void |
617 | void |
388 | min_parallel(nthreads) |
618 | min_parallel(nthreads) |
389 | int nthreads |
619 | int nthreads |
390 | PROTOTYPE: $ |
620 | PROTOTYPE: $ |
391 | CODE: |
|
|
392 | while (nthreads > started) |
|
|
393 | start_thread (); |
|
|
394 | |
621 | |
395 | void |
622 | void |
396 | max_parallel(nthreads) |
623 | max_parallel(nthreads) |
397 | int nthreads |
624 | int nthreads |
398 | PROTOTYPE: $ |
625 | PROTOTYPE: $ |
399 | CODE: |
|
|
400 | { |
|
|
401 | int cur = started; |
|
|
402 | while (cur > nthreads) |
|
|
403 | { |
|
|
404 | end_thread (); |
|
|
405 | cur--; |
|
|
406 | } |
|
|
407 | |
|
|
408 | while (started > nthreads) |
|
|
409 | { |
|
|
410 | poll_wait (); |
|
|
411 | poll_cb (); |
|
|
412 | } |
|
|
413 | } |
|
|
414 | |
626 | |
415 | int |
627 | int |
416 | max_outstanding(nreqs) |
628 | max_outstanding(nreqs) |
417 | int nreqs |
629 | int nreqs |
418 | PROTOTYPE: $ |
630 | PROTOTYPE: $ |
… | |
… | |
427 | int mode |
639 | int mode |
428 | SV * callback |
640 | SV * callback |
429 | PROTOTYPE: $$$;$ |
641 | PROTOTYPE: $$$;$ |
430 | CODE: |
642 | CODE: |
431 | { |
643 | { |
432 | aio_req req; |
644 | dREQ; |
433 | |
|
|
434 | Newz (0, req, 1, aio_cb); |
|
|
435 | |
|
|
436 | if (!req) |
|
|
437 | croak ("out of memory during aio_req allocation"); |
|
|
438 | |
645 | |
439 | req->type = REQ_OPEN; |
646 | req->type = REQ_OPEN; |
440 | req->data = newSVsv (pathname); |
647 | req->data = newSVsv (pathname); |
441 | req->dataptr = SvPV_nolen (req->data); |
648 | req->dataptr = SvPVbyte_nolen (req->data); |
442 | req->fd = flags; |
649 | req->fd = flags; |
443 | req->mode = mode; |
650 | req->mode = mode; |
444 | req->callback = SvREFCNT_inc (callback); |
|
|
445 | |
651 | |
446 | send_req (req); |
652 | send_req (req); |
447 | } |
653 | } |
448 | |
654 | |
449 | void |
655 | void |
450 | aio_close(fh,callback=&PL_sv_undef) |
656 | aio_close(fh,callback=&PL_sv_undef) |
451 | InputStream fh |
657 | SV * fh |
452 | SV * callback |
658 | SV * callback |
453 | PROTOTYPE: $;$ |
659 | PROTOTYPE: $;$ |
454 | ALIAS: |
660 | ALIAS: |
455 | aio_close = REQ_CLOSE |
661 | aio_close = REQ_CLOSE |
456 | aio_fsync = REQ_FSYNC |
662 | aio_fsync = REQ_FSYNC |
457 | aio_fdatasync = REQ_FDATASYNC |
663 | aio_fdatasync = REQ_FDATASYNC |
458 | CODE: |
664 | CODE: |
459 | { |
665 | { |
460 | aio_req req; |
666 | dREQ; |
461 | |
|
|
462 | Newz (0, req, 1, aio_cb); |
|
|
463 | |
|
|
464 | if (!req) |
|
|
465 | croak ("out of memory during aio_req allocation"); |
|
|
466 | |
667 | |
467 | req->type = ix; |
668 | req->type = ix; |
|
|
669 | req->fh = newSVsv (fh); |
468 | req->fd = PerlIO_fileno (fh); |
670 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
469 | req->callback = SvREFCNT_inc (callback); |
|
|
470 | |
671 | |
471 | send_req (req); |
672 | send_req (req); |
472 | } |
673 | } |
473 | |
674 | |
474 | void |
675 | void |
475 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
676 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
476 | InputStream fh |
677 | SV * fh |
477 | UV offset |
678 | UV offset |
478 | IV length |
679 | UV length |
479 | SV * data |
680 | SV * data |
480 | IV dataoffset |
681 | UV dataoffset |
481 | SV * callback |
682 | SV * callback |
|
|
683 | ALIAS: |
|
|
684 | aio_read = REQ_READ |
|
|
685 | aio_write = REQ_WRITE |
482 | PROTOTYPE: $$$$$;$ |
686 | PROTOTYPE: $$$$$;$ |
483 | CODE: |
687 | CODE: |
484 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
688 | { |
|
|
689 | aio_req req; |
|
|
690 | STRLEN svlen; |
|
|
691 | char *svptr = SvPVbyte (data, svlen); |
485 | |
692 | |
|
|
693 | SvUPGRADE (data, SVt_PV); |
|
|
694 | SvPOK_on (data); |
|
|
695 | |
|
|
696 | if (dataoffset < 0) |
|
|
697 | dataoffset += svlen; |
|
|
698 | |
|
|
699 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
700 | croak ("data offset outside of string"); |
|
|
701 | |
|
|
702 | if (ix == REQ_WRITE) |
|
|
703 | { |
|
|
704 | /* write: check length and adjust. */ |
|
|
705 | if (length < 0 || length + dataoffset > svlen) |
|
|
706 | length = svlen - dataoffset; |
|
|
707 | } |
|
|
708 | else |
|
|
709 | { |
|
|
710 | /* read: grow scalar as necessary */ |
|
|
711 | svptr = SvGROW (data, length + dataoffset); |
|
|
712 | } |
|
|
713 | |
|
|
714 | if (length < 0) |
|
|
715 | croak ("length must not be negative"); |
|
|
716 | |
|
|
717 | { |
|
|
718 | dREQ; |
|
|
719 | |
|
|
720 | req->type = ix; |
|
|
721 | req->fh = newSVsv (fh); |
|
|
722 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
723 | : IoOFP (sv_2io (fh))); |
|
|
724 | req->offset = offset; |
|
|
725 | req->length = length; |
|
|
726 | req->data = SvREFCNT_inc (data); |
|
|
727 | req->dataptr = (char *)svptr + dataoffset; |
|
|
728 | |
|
|
729 | if (!SvREADONLY (data)) |
|
|
730 | { |
|
|
731 | SvREADONLY_on (data); |
|
|
732 | req->data2ptr = (void *)data; |
|
|
733 | } |
|
|
734 | |
|
|
735 | send_req (req); |
|
|
736 | } |
|
|
737 | } |
|
|
738 | |
486 | void |
739 | void |
487 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
740 | aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
488 | OutputStream fh |
741 | SV * out_fh |
|
|
742 | SV * in_fh |
489 | UV offset |
743 | UV in_offset |
490 | IV length |
744 | UV length |
491 | SV * data |
|
|
492 | IV dataoffset |
|
|
493 | SV * callback |
745 | SV * callback |
494 | PROTOTYPE: $$$$$;$ |
746 | PROTOTYPE: $$$$;$ |
495 | CODE: |
747 | CODE: |
496 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
748 | { |
|
|
749 | dREQ; |
|
|
750 | |
|
|
751 | req->type = REQ_SENDFILE; |
|
|
752 | req->fh = newSVsv (out_fh); |
|
|
753 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
754 | req->fh2 = newSVsv (in_fh); |
|
|
755 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
756 | req->offset = in_offset; |
|
|
757 | req->length = length; |
|
|
758 | |
|
|
759 | send_req (req); |
|
|
760 | } |
497 | |
761 | |
498 | void |
762 | void |
499 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
763 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
500 | InputStream fh |
764 | SV * fh |
501 | UV offset |
765 | UV offset |
502 | IV length |
766 | IV length |
503 | SV * callback |
767 | SV * callback |
504 | PROTOTYPE: $$$;$ |
768 | PROTOTYPE: $$$;$ |
505 | CODE: |
769 | CODE: |
506 | { |
770 | { |
507 | aio_req req; |
771 | dREQ; |
508 | |
|
|
509 | if (length < 0) |
|
|
510 | croak ("length must not be negative"); |
|
|
511 | |
|
|
512 | Newz (0, req, 1, aio_cb); |
|
|
513 | |
|
|
514 | if (!req) |
|
|
515 | croak ("out of memory during aio_req allocation"); |
|
|
516 | |
772 | |
517 | req->type = REQ_READAHEAD; |
773 | req->type = REQ_READAHEAD; |
|
|
774 | req->fh = newSVsv (fh); |
518 | req->fd = PerlIO_fileno (fh); |
775 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
519 | req->offset = offset; |
776 | req->offset = offset; |
520 | req->length = length; |
777 | req->length = length; |
521 | req->callback = SvREFCNT_inc (callback); |
|
|
522 | |
778 | |
523 | send_req (req); |
779 | send_req (req); |
524 | } |
780 | } |
525 | |
781 | |
526 | void |
782 | void |
… | |
… | |
530 | ALIAS: |
786 | ALIAS: |
531 | aio_stat = REQ_STAT |
787 | aio_stat = REQ_STAT |
532 | aio_lstat = REQ_LSTAT |
788 | aio_lstat = REQ_LSTAT |
533 | CODE: |
789 | CODE: |
534 | { |
790 | { |
535 | aio_req req; |
791 | dREQ; |
536 | |
|
|
537 | Newz (0, req, 1, aio_cb); |
|
|
538 | |
|
|
539 | if (!req) |
|
|
540 | croak ("out of memory during aio_req allocation"); |
|
|
541 | |
792 | |
542 | New (0, req->statdata, 1, Stat_t); |
793 | New (0, req->statdata, 1, Stat_t); |
543 | |
|
|
544 | if (!req->statdata) |
794 | if (!req->statdata) |
|
|
795 | { |
|
|
796 | free_req (req); |
545 | croak ("out of memory during aio_req->statdata allocation"); |
797 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
798 | } |
546 | |
799 | |
547 | if (SvPOK (fh_or_path)) |
800 | if (SvPOK (fh_or_path)) |
548 | { |
801 | { |
549 | req->type = ix; |
802 | req->type = ix; |
550 | req->data = newSVsv (fh_or_path); |
803 | req->data = newSVsv (fh_or_path); |
551 | req->dataptr = SvPV_nolen (req->data); |
804 | req->dataptr = SvPVbyte_nolen (req->data); |
552 | } |
805 | } |
553 | else |
806 | else |
554 | { |
807 | { |
555 | req->type = REQ_FSTAT; |
808 | req->type = REQ_FSTAT; |
|
|
809 | req->fh = newSVsv (fh_or_path); |
556 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
810 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
557 | } |
811 | } |
558 | |
|
|
559 | req->callback = SvREFCNT_inc (callback); |
|
|
560 | |
812 | |
561 | send_req (req); |
813 | send_req (req); |
562 | } |
814 | } |
563 | |
815 | |
564 | void |
816 | void |
565 | aio_unlink(pathname,callback=&PL_sv_undef) |
817 | aio_unlink(pathname,callback=&PL_sv_undef) |
566 | SV * pathname |
818 | SV * pathname |
567 | SV * callback |
819 | SV * callback |
|
|
820 | ALIAS: |
|
|
821 | aio_unlink = REQ_UNLINK |
|
|
822 | aio_rmdir = REQ_RMDIR |
568 | CODE: |
823 | CODE: |
569 | { |
824 | { |
570 | aio_req req; |
825 | dREQ; |
571 | |
826 | |
572 | Newz (0, req, 1, aio_cb); |
827 | req->type = ix; |
|
|
828 | req->data = newSVsv (pathname); |
|
|
829 | req->dataptr = SvPVbyte_nolen (req->data); |
573 | |
830 | |
574 | if (!req) |
831 | send_req (req); |
575 | croak ("out of memory during aio_req allocation"); |
832 | } |
|
|
833 | |
|
|
834 | void |
|
|
835 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
|
|
836 | SV * oldpath |
|
|
837 | SV * newpath |
|
|
838 | SV * callback |
|
|
839 | CODE: |
|
|
840 | { |
|
|
841 | dREQ; |
576 | |
842 | |
577 | req->type = REQ_UNLINK; |
843 | req->type = REQ_SYMLINK; |
|
|
844 | req->fh = newSVsv (oldpath); |
|
|
845 | req->data2ptr = SvPVbyte_nolen (req->fh); |
578 | req->data = newSVsv (pathname); |
846 | req->data = newSVsv (newpath); |
579 | req->dataptr = SvPV_nolen (req->data); |
847 | req->dataptr = SvPVbyte_nolen (req->data); |
580 | req->callback = SvREFCNT_inc (callback); |
|
|
581 | |
848 | |
582 | send_req (req); |
849 | send_req (req); |
583 | } |
850 | } |
584 | |
851 | |
585 | void |
852 | void |