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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" |
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; |
59 | static 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; |
64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
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67 | static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER; |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
68 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
66 | |
69 | |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
70 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
71 | static volatile aio_req ress, rese; /* queue start, queue end */ |
69 | |
72 | |
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73 | static void free_req (aio_req req) |
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74 | { |
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75 | if (req->data) |
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76 | SvREFCNT_dec (req->data); |
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77 | |
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78 | if (req->fh) |
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79 | SvREFCNT_dec (req->fh); |
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80 | |
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81 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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82 | Safefree (req->statdata); |
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83 | |
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84 | if (req->callback) |
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85 | SvREFCNT_dec (req->callback); |
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86 | |
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87 | Safefree (req); |
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88 | } |
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89 | |
70 | static void |
90 | static void |
71 | poll_wait () |
91 | poll_wait () |
72 | { |
92 | { |
73 | if (!nreqs) |
93 | if (nreqs && !ress) |
74 | return; |
94 | { |
75 | |
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76 | fd_set rfd; |
95 | fd_set rfd; |
77 | FD_ZERO(&rfd); |
96 | FD_ZERO(&rfd); |
78 | FD_SET(respipe [0], &rfd); |
97 | FD_SET(respipe [0], &rfd); |
79 | |
98 | |
80 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
99 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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100 | } |
81 | } |
101 | } |
82 | |
102 | |
83 | static int |
103 | static int |
84 | poll_cb () |
104 | poll_cb () |
85 | { |
105 | { |
86 | dSP; |
106 | dSP; |
87 | int count = 0; |
107 | int count = 0; |
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108 | int do_croak = 0; |
88 | aio_req req; |
109 | aio_req req, prv; |
89 | |
110 | |
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111 | pthread_mutex_lock (&reslock); |
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112 | |
90 | { |
113 | { |
91 | /* read and signals sent by the worker threads */ |
114 | /* read any signals sent by the worker threads */ |
92 | char buf [32]; |
115 | char buf [32]; |
93 | while (read (respipe [0], buf, 32) > 0) |
116 | while (read (respipe [0], buf, 32) == 32) |
94 | ; |
117 | ; |
95 | } |
118 | } |
96 | |
119 | |
97 | for (;;) |
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98 | { |
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99 | pthread_mutex_lock (&reslock); |
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100 | |
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101 | req = ress; |
120 | req = ress; |
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121 | ress = rese = 0; |
102 | |
122 | |
103 | if (ress) |
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104 | { |
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105 | ress = ress->next; |
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106 | if (!ress) rese = 0; |
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107 | } |
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108 | |
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109 | pthread_mutex_unlock (&reslock); |
123 | pthread_mutex_unlock (&reslock); |
110 | |
124 | |
111 | if (!req) |
125 | while (req) |
112 | break; |
126 | { |
113 | |
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114 | nreqs--; |
127 | nreqs--; |
115 | |
128 | |
116 | if (req->type == REQ_QUIT) |
129 | if (req->type == REQ_QUIT) |
117 | started--; |
130 | started--; |
118 | else |
131 | else |
… | |
… | |
122 | |
135 | |
123 | if (req->type == REQ_READ) |
136 | if (req->type == REQ_READ) |
124 | SvCUR_set (req->data, req->dataoffset |
137 | SvCUR_set (req->data, req->dataoffset |
125 | + req->result > 0 ? req->result : 0); |
138 | + req->result > 0 ? req->result : 0); |
126 | |
139 | |
127 | if (req->data) |
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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) |
140 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
131 | { |
141 | { |
132 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
142 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
133 | PL_laststatval = req->result; |
143 | PL_laststatval = req->result; |
134 | PL_statcache = *(req->statdata); |
144 | PL_statcache = *(req->statdata); |
135 | |
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136 | Safefree (req->statdata); |
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137 | } |
145 | } |
138 | |
146 | |
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147 | ENTER; |
139 | PUSHMARK (SP); |
148 | PUSHMARK (SP); |
140 | XPUSHs (sv_2mortal (newSViv (req->result))); |
149 | XPUSHs (sv_2mortal (newSViv (req->result))); |
141 | |
150 | |
142 | if (req->type == REQ_OPEN) |
151 | if (req->type == REQ_OPEN) |
143 | { |
152 | { |
… | |
… | |
146 | |
155 | |
147 | PUTBACK; |
156 | PUTBACK; |
148 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
157 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
149 | SPAGAIN; |
158 | SPAGAIN; |
150 | |
159 | |
151 | fh = POPs; |
160 | fh = SvREFCNT_inc (POPs); |
152 | |
161 | |
153 | PUSHMARK (SP); |
162 | PUSHMARK (SP); |
154 | XPUSHs (fh); |
163 | XPUSHs (sv_2mortal (fh)); |
155 | } |
164 | } |
156 | |
165 | |
157 | if (SvOK (req->callback)) |
166 | if (SvOK (req->callback)) |
158 | { |
167 | { |
159 | PUTBACK; |
168 | PUTBACK; |
160 | call_sv (req->callback, G_VOID | G_EVAL); |
169 | call_sv (req->callback, G_VOID | G_EVAL); |
161 | SPAGAIN; |
170 | SPAGAIN; |
162 | } |
171 | } |
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172 | |
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173 | LEAVE; |
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174 | |
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175 | do_croak = SvTRUE (ERRSV); |
163 | |
176 | |
164 | if (req->callback) |
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165 | SvREFCNT_dec (req->callback); |
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166 | |
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167 | errno = errorno; |
177 | errno = errorno; |
168 | count++; |
178 | count++; |
169 | } |
179 | } |
170 | |
180 | |
171 | Safefree (req); |
181 | prv = req; |
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182 | req = req->next; |
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183 | free_req (prv); |
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184 | |
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185 | if (do_croak) |
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186 | croak (0); |
172 | } |
187 | } |
173 | |
188 | |
174 | return count; |
189 | return count; |
175 | } |
190 | } |
176 | |
191 | |
… | |
… | |
225 | |
240 | |
226 | static void |
241 | static void |
227 | end_thread (void) |
242 | end_thread (void) |
228 | { |
243 | { |
229 | aio_req req; |
244 | aio_req req; |
230 | New (0, req, 1, aio_cb); |
245 | Newz (0, req, 1, aio_cb); |
231 | req->type = REQ_QUIT; |
246 | req->type = REQ_QUIT; |
232 | |
247 | |
233 | send_req (req); |
248 | send_req (req); |
234 | } |
249 | } |
235 | |
250 | |
236 | static void |
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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 | |
251 | |
244 | SvUPGRADE (data, SVt_PV); |
252 | static void min_parallel (int nthreads) |
245 | SvPOK_on (data); |
253 | { |
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254 | while (nthreads > started) |
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255 | start_thread (); |
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256 | } |
246 | |
257 | |
247 | if (dataoffset < 0) |
258 | static void max_parallel (int nthreads) |
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259 | { |
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260 | int cur = started; |
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261 | while (cur > nthreads) |
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262 | { |
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263 | end_thread (); |
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264 | cur--; |
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265 | } |
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266 | |
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267 | while (started > nthreads) |
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268 | { |
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269 | poll_wait (); |
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270 | poll_cb (); |
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271 | } |
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272 | } |
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273 | |
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274 | static void create_pipe () |
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275 | { |
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276 | if (pipe (respipe)) |
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277 | croak ("unable to initialize result pipe"); |
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278 | |
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279 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
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280 | croak ("cannot set result pipe to nonblocking mode"); |
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281 | |
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282 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
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283 | croak ("cannot set result pipe to nonblocking mode"); |
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284 | } |
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285 | |
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286 | static void atfork_prepare (void) |
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287 | { |
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288 | pthread_mutex_lock (&frklock); |
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289 | pthread_mutex_lock (&reqlock); |
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290 | pthread_mutex_lock (&reslock); |
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291 | } |
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292 | |
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293 | static void atfork_parent (void) |
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294 | { |
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295 | pthread_mutex_unlock (&reslock); |
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296 | pthread_mutex_unlock (&reqlock); |
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297 | pthread_mutex_unlock (&frklock); |
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298 | } |
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299 | |
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300 | static void atfork_child (void) |
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301 | { |
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302 | int restart = started; |
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303 | started = 0; |
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304 | |
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305 | while (reqs) |
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306 | { |
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307 | free_req (reqs); |
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308 | reqs = reqs->next; |
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309 | } |
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310 | |
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311 | reqs = reqe = 0; |
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312 | |
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313 | while (ress) |
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314 | { |
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315 | free_req (ress); |
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316 | ress = ress->next; |
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317 | } |
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318 | |
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319 | ress = rese = 0; |
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320 | |
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321 | close (respipe [0]); |
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322 | close (respipe [1]); |
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323 | |
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324 | create_pipe (); |
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325 | |
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326 | atfork_parent (); |
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327 | |
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328 | min_parallel (restart); |
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329 | } |
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330 | |
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331 | /*****************************************************************************/ |
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332 | /* work around various missing functions */ |
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333 | |
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334 | #if !HAVE_PREADWRITE |
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335 | # define pread aio_pread |
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336 | # define pwrite aio_pwrite |
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337 | |
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338 | /* |
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339 | * make our pread/pwrite safe against themselves, but not against |
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340 | * normal read/write by using a mutex. slows down execution a lot, |
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341 | * but that's your problem, not mine. |
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342 | */ |
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343 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
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344 | |
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345 | static ssize_t |
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346 | pread (int fd, void *buf, size_t count, off_t offset) |
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347 | { |
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348 | ssize_t res; |
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349 | off_t ooffset; |
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350 | |
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351 | pthread_mutex_lock (&iolock); |
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352 | ooffset = lseek (fd, 0, SEEK_CUR); |
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353 | lseek (fd, offset, SEEK_SET); |
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354 | res = read (fd, buf, count); |
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355 | lseek (fd, ooffset, SEEK_SET); |
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356 | pthread_mutex_unlock (&iolock); |
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357 | |
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358 | return res; |
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359 | } |
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360 | |
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361 | static ssize_t |
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362 | pwrite (int fd, void *buf, size_t count, off_t offset) |
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363 | { |
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364 | ssize_t res; |
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365 | off_t ooffset; |
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366 | |
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367 | pthread_mutex_lock (&iolock); |
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368 | ooffset = lseek (fd, 0, SEEK_CUR); |
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369 | lseek (fd, offset, SEEK_SET); |
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370 | res = write (fd, buf, count); |
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371 | lseek (fd, offset, SEEK_SET); |
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372 | pthread_mutex_unlock (&iolock); |
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373 | |
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374 | return res; |
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375 | } |
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376 | #endif |
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377 | |
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378 | #if !HAVE_FDATASYNC |
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379 | # define fdatasync fsync |
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380 | #endif |
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381 | |
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382 | #if !HAVE_READAHEAD |
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383 | # define readahead aio_readahead |
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384 | |
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385 | static char readahead_buf[4096]; |
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386 | |
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387 | static ssize_t |
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388 | readahead (int fd, off_t offset, size_t count) |
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389 | { |
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390 | while (count > 0) |
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391 | { |
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392 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
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393 | |
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394 | pread (fd, readahead_buf, len, offset); |
248 | dataoffset += svlen; |
395 | offset += len; |
249 | |
396 | count -= len; |
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 | { |
397 | } |
255 | /* write: check length and adjust. */ |
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256 | if (length < 0 || length + dataoffset > svlen) |
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257 | length = svlen - dataoffset; |
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258 | } |
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259 | else |
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260 | { |
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261 | /* read: grow scalar as necessary */ |
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262 | svptr = SvGROW (data, length + dataoffset); |
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263 | } |
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264 | |
398 | |
265 | if (length < 0) |
399 | errno = 0; |
266 | croak ("length must not be negative"); |
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267 | |
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268 | Newz (0, req, 1, aio_cb); |
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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 | } |
400 | } |
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401 | #endif |
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402 | |
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403 | /*****************************************************************************/ |
283 | |
404 | |
284 | static void * |
405 | static void * |
285 | aio_proc (void *thr_arg) |
406 | aio_proc (void *thr_arg) |
286 | { |
407 | { |
287 | aio_req req; |
408 | aio_req req; |
… | |
… | |
315 | |
436 | |
316 | switch (type) |
437 | switch (type) |
317 | { |
438 | { |
318 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
439 | 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; |
440 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
320 | #if SYS_readahead |
441 | |
321 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
442 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
322 | #else |
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323 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
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324 | #endif |
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325 | |
443 | |
326 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
444 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
327 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
445 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
328 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
446 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
329 | |
447 | |
330 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
448 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
331 | case REQ_CLOSE: req->result = close (req->fd); break; |
449 | case REQ_CLOSE: req->result = close (req->fd); break; |
332 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
450 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
451 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
452 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
333 | |
453 | |
|
|
454 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
334 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
455 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
335 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
336 | |
456 | |
337 | case REQ_QUIT: |
457 | case REQ_QUIT: |
338 | break; |
458 | break; |
339 | |
459 | |
340 | default: |
460 | default: |
… | |
… | |
366 | while (type != REQ_QUIT); |
486 | while (type != REQ_QUIT); |
367 | |
487 | |
368 | return 0; |
488 | return 0; |
369 | } |
489 | } |
370 | |
490 | |
|
|
491 | #define dREQ \ |
|
|
492 | aio_req req; \ |
|
|
493 | \ |
|
|
494 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
495 | croak ("clalback must be undef or of reference type"); \ |
|
|
496 | \ |
|
|
497 | Newz (0, req, 1, aio_cb); \ |
|
|
498 | if (!req) \ |
|
|
499 | croak ("out of memory during aio_req allocation"); \ |
|
|
500 | \ |
|
|
501 | req->callback = SvREFCNT_inc (callback); |
|
|
502 | |
371 | MODULE = IO::AIO PACKAGE = IO::AIO |
503 | MODULE = IO::AIO PACKAGE = IO::AIO |
372 | |
504 | |
373 | PROTOTYPES: ENABLE |
505 | PROTOTYPES: ENABLE |
374 | |
506 | |
375 | BOOT: |
507 | BOOT: |
376 | { |
508 | { |
377 | if (pipe (respipe)) |
509 | create_pipe (); |
378 | croak ("unable to initialize result pipe"); |
510 | 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 | } |
511 | } |
386 | |
512 | |
387 | void |
513 | void |
388 | min_parallel(nthreads) |
514 | min_parallel(nthreads) |
389 | int nthreads |
515 | int nthreads |
390 | PROTOTYPE: $ |
516 | PROTOTYPE: $ |
391 | CODE: |
|
|
392 | while (nthreads > started) |
|
|
393 | start_thread (); |
|
|
394 | |
517 | |
395 | void |
518 | void |
396 | max_parallel(nthreads) |
519 | max_parallel(nthreads) |
397 | int nthreads |
520 | int nthreads |
398 | PROTOTYPE: $ |
521 | 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 | |
522 | |
415 | int |
523 | int |
416 | max_outstanding(nreqs) |
524 | max_outstanding(nreqs) |
417 | int nreqs |
525 | int nreqs |
418 | PROTOTYPE: $ |
526 | PROTOTYPE: $ |
… | |
… | |
427 | int mode |
535 | int mode |
428 | SV * callback |
536 | SV * callback |
429 | PROTOTYPE: $$$;$ |
537 | PROTOTYPE: $$$;$ |
430 | CODE: |
538 | CODE: |
431 | { |
539 | { |
432 | aio_req req; |
540 | dREQ; |
433 | |
|
|
434 | Newz (0, req, 1, aio_cb); |
|
|
435 | |
|
|
436 | if (!req) |
|
|
437 | croak ("out of memory during aio_req allocation"); |
|
|
438 | |
541 | |
439 | req->type = REQ_OPEN; |
542 | req->type = REQ_OPEN; |
440 | req->data = newSVsv (pathname); |
543 | req->data = newSVsv (pathname); |
441 | req->dataptr = SvPV_nolen (req->data); |
544 | req->dataptr = SvPVbyte_nolen (req->data); |
442 | req->fd = flags; |
545 | req->fd = flags; |
443 | req->mode = mode; |
546 | req->mode = mode; |
444 | req->callback = SvREFCNT_inc (callback); |
|
|
445 | |
547 | |
446 | send_req (req); |
548 | send_req (req); |
447 | } |
549 | } |
448 | |
550 | |
449 | void |
551 | void |
450 | aio_close(fh,callback=&PL_sv_undef) |
552 | aio_close(fh,callback=&PL_sv_undef) |
451 | InputStream fh |
553 | SV * fh |
452 | SV * callback |
554 | SV * callback |
453 | PROTOTYPE: $;$ |
555 | PROTOTYPE: $;$ |
454 | ALIAS: |
556 | ALIAS: |
455 | aio_close = REQ_CLOSE |
557 | aio_close = REQ_CLOSE |
456 | aio_fsync = REQ_FSYNC |
558 | aio_fsync = REQ_FSYNC |
457 | aio_fdatasync = REQ_FDATASYNC |
559 | aio_fdatasync = REQ_FDATASYNC |
458 | CODE: |
560 | CODE: |
459 | { |
561 | { |
460 | aio_req req; |
562 | dREQ; |
461 | |
|
|
462 | Newz (0, req, 1, aio_cb); |
|
|
463 | |
|
|
464 | if (!req) |
|
|
465 | croak ("out of memory during aio_req allocation"); |
|
|
466 | |
563 | |
467 | req->type = ix; |
564 | req->type = ix; |
|
|
565 | req->fh = newSVsv (fh); |
468 | req->fd = PerlIO_fileno (fh); |
566 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
469 | req->callback = SvREFCNT_inc (callback); |
|
|
470 | |
567 | |
471 | send_req (req); |
568 | send_req (req); |
472 | } |
569 | } |
473 | |
570 | |
474 | void |
571 | void |
475 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
572 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
476 | InputStream fh |
573 | SV * fh |
477 | UV offset |
574 | UV offset |
478 | IV length |
575 | IV length |
479 | SV * data |
576 | SV * data |
480 | IV dataoffset |
577 | IV dataoffset |
481 | SV * callback |
578 | SV * callback |
|
|
579 | ALIAS: |
|
|
580 | aio_read = REQ_READ |
|
|
581 | aio_write = REQ_WRITE |
482 | PROTOTYPE: $$$$$;$ |
582 | PROTOTYPE: $$$$$;$ |
483 | CODE: |
583 | CODE: |
484 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
584 | { |
|
|
585 | aio_req req; |
|
|
586 | STRLEN svlen; |
|
|
587 | char *svptr = SvPVbyte (data, svlen); |
485 | |
588 | |
486 | void |
589 | SvUPGRADE (data, SVt_PV); |
487 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
590 | SvPOK_on (data); |
488 | OutputStream fh |
591 | |
489 | UV offset |
592 | if (dataoffset < 0) |
490 | IV length |
593 | dataoffset += svlen; |
491 | SV * data |
594 | |
492 | IV dataoffset |
595 | if (dataoffset < 0 || dataoffset > svlen) |
493 | SV * callback |
596 | croak ("data offset outside of string"); |
494 | PROTOTYPE: $$$$$;$ |
597 | |
495 | CODE: |
598 | if (ix == REQ_WRITE) |
496 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
599 | { |
|
|
600 | /* write: check length and adjust. */ |
|
|
601 | if (length < 0 || length + dataoffset > svlen) |
|
|
602 | length = svlen - dataoffset; |
|
|
603 | } |
|
|
604 | else |
|
|
605 | { |
|
|
606 | /* read: grow scalar as necessary */ |
|
|
607 | svptr = SvGROW (data, length + dataoffset); |
|
|
608 | } |
|
|
609 | |
|
|
610 | if (length < 0) |
|
|
611 | croak ("length must not be negative"); |
|
|
612 | |
|
|
613 | { |
|
|
614 | dREQ; |
|
|
615 | |
|
|
616 | req->type = ix; |
|
|
617 | req->fh = newSVsv (fh); |
|
|
618 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
619 | : IoOFP (sv_2io (fh))); |
|
|
620 | req->offset = offset; |
|
|
621 | req->length = length; |
|
|
622 | req->data = SvREFCNT_inc (data); |
|
|
623 | req->dataptr = (char *)svptr + dataoffset; |
|
|
624 | req->callback = SvREFCNT_inc (callback); |
|
|
625 | |
|
|
626 | send_req (req); |
|
|
627 | } |
|
|
628 | } |
497 | |
629 | |
498 | void |
630 | void |
499 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
631 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
500 | InputStream fh |
632 | SV * fh |
501 | UV offset |
633 | UV offset |
502 | IV length |
634 | IV length |
503 | SV * callback |
635 | SV * callback |
504 | PROTOTYPE: $$$;$ |
636 | PROTOTYPE: $$$;$ |
505 | CODE: |
637 | CODE: |
506 | { |
638 | { |
507 | aio_req req; |
639 | 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 | |
640 | |
517 | req->type = REQ_READAHEAD; |
641 | req->type = REQ_READAHEAD; |
|
|
642 | req->fh = newSVsv (fh); |
518 | req->fd = PerlIO_fileno (fh); |
643 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
519 | req->offset = offset; |
644 | req->offset = offset; |
520 | req->length = length; |
645 | req->length = length; |
521 | req->callback = SvREFCNT_inc (callback); |
|
|
522 | |
646 | |
523 | send_req (req); |
647 | send_req (req); |
524 | } |
648 | } |
525 | |
649 | |
526 | void |
650 | void |
… | |
… | |
530 | ALIAS: |
654 | ALIAS: |
531 | aio_stat = REQ_STAT |
655 | aio_stat = REQ_STAT |
532 | aio_lstat = REQ_LSTAT |
656 | aio_lstat = REQ_LSTAT |
533 | CODE: |
657 | CODE: |
534 | { |
658 | { |
535 | aio_req req; |
659 | dREQ; |
536 | |
|
|
537 | Newz (0, req, 1, aio_cb); |
|
|
538 | |
|
|
539 | if (!req) |
|
|
540 | croak ("out of memory during aio_req allocation"); |
|
|
541 | |
660 | |
542 | New (0, req->statdata, 1, Stat_t); |
661 | New (0, req->statdata, 1, Stat_t); |
543 | |
|
|
544 | if (!req->statdata) |
662 | if (!req->statdata) |
545 | croak ("out of memory during aio_req->statdata allocation"); |
663 | croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); |
546 | |
664 | |
547 | if (SvPOK (fh_or_path)) |
665 | if (SvPOK (fh_or_path)) |
548 | { |
666 | { |
549 | req->type = ix; |
667 | req->type = ix; |
550 | req->data = newSVsv (fh_or_path); |
668 | req->data = newSVsv (fh_or_path); |
551 | req->dataptr = SvPV_nolen (req->data); |
669 | req->dataptr = SvPVbyte_nolen (req->data); |
552 | } |
670 | } |
553 | else |
671 | else |
554 | { |
672 | { |
555 | req->type = REQ_FSTAT; |
673 | req->type = REQ_FSTAT; |
|
|
674 | req->fh = newSVsv (fh_or_path); |
556 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
675 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
557 | } |
676 | } |
558 | |
|
|
559 | req->callback = SvREFCNT_inc (callback); |
|
|
560 | |
677 | |
561 | send_req (req); |
678 | send_req (req); |
562 | } |
679 | } |
563 | |
680 | |
564 | void |
681 | void |
565 | aio_unlink(pathname,callback=&PL_sv_undef) |
682 | aio_unlink(pathname,callback=&PL_sv_undef) |
566 | SV * pathname |
683 | SV * pathname |
567 | SV * callback |
684 | SV * callback |
|
|
685 | ALIAS: |
|
|
686 | aio_unlink = REQ_UNLINK |
|
|
687 | aio_rmdir = REQ_RMDIR |
568 | CODE: |
688 | CODE: |
569 | { |
689 | { |
570 | aio_req req; |
690 | dREQ; |
571 | |
691 | |
572 | Newz (0, req, 1, aio_cb); |
692 | req->type = ix; |
|
|
693 | req->data = newSVsv (pathname); |
|
|
694 | req->dataptr = SvPVbyte_nolen (req->data); |
573 | |
695 | |
574 | if (!req) |
696 | send_req (req); |
575 | croak ("out of memory during aio_req allocation"); |
697 | } |
|
|
698 | |
|
|
699 | void |
|
|
700 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
|
|
701 | SV * oldpath |
|
|
702 | SV * newpath |
|
|
703 | SV * callback |
|
|
704 | CODE: |
|
|
705 | { |
|
|
706 | dREQ; |
576 | |
707 | |
577 | req->type = REQ_UNLINK; |
708 | req->type = REQ_SYMLINK; |
|
|
709 | req->fh = newSVsv (oldpath); |
|
|
710 | req->data2ptr = SvPVbyte_nolen (req->fh); |
578 | req->data = newSVsv (pathname); |
711 | req->data = newSVsv (newpath); |
579 | req->dataptr = SvPV_nolen (req->data); |
712 | req->dataptr = SvPVbyte_nolen (req->data); |
580 | req->callback = SvREFCNT_inc (callback); |
|
|
581 | |
713 | |
582 | send_req (req); |
714 | send_req (req); |
583 | } |
715 | } |
584 | |
716 | |
585 | void |
717 | void |