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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 | #include "autoconf/config.h" |
8 | #include "autoconf/config.h" |
6 | |
9 | |
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10 | #include <pthread.h> |
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11 | |
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12 | #include <stddef.h> |
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13 | #include <errno.h> |
7 | #include <sys/types.h> |
14 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
15 | #include <sys/stat.h> |
9 | |
16 | #include <limits.h> |
10 | #include <unistd.h> |
17 | #include <unistd.h> |
11 | #include <fcntl.h> |
18 | #include <fcntl.h> |
12 | #include <signal.h> |
19 | #include <signal.h> |
13 | #include <sched.h> |
20 | #include <sched.h> |
14 | |
21 | |
15 | #include <pthread.h> |
22 | #if HAVE_SENDFILE |
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23 | # if __linux |
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24 | # include <sys/sendfile.h> |
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25 | # elif __freebsd |
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26 | # include <sys/socket.h> |
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27 | # include <sys/uio.h> |
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28 | # elif __hpux |
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29 | # include <sys/socket.h> |
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30 | # elif __solaris /* not yet */ |
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31 | # include <sys/sendfile.h> |
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32 | # else |
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33 | # error sendfile support requested but not available |
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34 | # endif |
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35 | #endif |
16 | |
36 | |
17 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
37 | /* used for struct dirent, AIX doesn't provide it */ |
18 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
38 | #ifndef NAME_MAX |
19 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
39 | # define NAME_MAX 4096 |
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40 | #endif |
20 | |
41 | |
21 | #if __ia64 |
42 | #if __ia64 |
22 | # define STACKSIZE 65536 |
43 | # define STACKSIZE 65536 |
23 | #else |
44 | #else |
24 | # define STACKSIZE 4096 |
45 | # define STACKSIZE 8192 |
25 | #endif |
46 | #endif |
26 | |
47 | |
27 | enum { |
48 | enum { |
28 | REQ_QUIT, |
49 | REQ_QUIT, |
29 | REQ_OPEN, REQ_CLOSE, |
50 | REQ_OPEN, REQ_CLOSE, |
30 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
51 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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52 | REQ_SENDFILE, |
31 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
53 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
32 | REQ_FSYNC, REQ_FDATASYNC, |
54 | REQ_FSYNC, REQ_FDATASYNC, |
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55 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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56 | REQ_READDIR, |
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57 | REQ_LINK, REQ_SYMLINK, |
33 | }; |
58 | }; |
34 | |
59 | |
35 | typedef struct aio_cb { |
60 | typedef struct aio_cb { |
36 | struct aio_cb *volatile next; |
61 | struct aio_cb *volatile next; |
37 | |
62 | |
38 | int type; |
63 | int type; |
39 | |
64 | |
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65 | /* should receive a cleanup, with unions */ |
40 | int fd; |
66 | int fd, fd2; |
41 | off_t offset; |
67 | off_t offset; |
42 | size_t length; |
68 | size_t length; |
43 | ssize_t result; |
69 | ssize_t result; |
44 | mode_t mode; /* open */ |
70 | mode_t mode; /* open */ |
45 | int errorno; |
71 | int errorno; |
46 | SV *data, *callback, *fh; |
72 | SV *data, *callback; |
47 | void *dataptr; |
73 | SV *fh, *fh2; |
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74 | void *dataptr, *data2ptr; |
48 | STRLEN dataoffset; |
75 | STRLEN dataoffset; |
49 | |
76 | |
50 | Stat_t *statdata; |
77 | Stat_t *statdata; |
51 | } aio_cb; |
78 | } aio_cb; |
52 | |
79 | |
53 | typedef aio_cb *aio_req; |
80 | typedef aio_cb *aio_req; |
54 | |
81 | |
55 | static int started; |
82 | static int started, wanted; |
56 | static volatile int nreqs; |
83 | static volatile int nreqs; |
57 | static int max_outstanding = 1<<30; |
84 | static int max_outstanding = 1<<30; |
58 | static int respipe [2]; |
85 | static int respipe [2]; |
59 | |
86 | |
60 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
87 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
… | |
… | |
62 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
89 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
63 | |
90 | |
64 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
91 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
65 | static volatile aio_req ress, rese; /* queue start, queue end */ |
92 | static volatile aio_req ress, rese; /* queue start, queue end */ |
66 | |
93 | |
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94 | static void free_req (aio_req req) |
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95 | { |
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96 | if (req->data) |
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97 | SvREFCNT_dec (req->data); |
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98 | |
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99 | if (req->fh) |
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100 | SvREFCNT_dec (req->fh); |
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101 | |
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102 | if (req->fh2) |
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103 | SvREFCNT_dec (req->fh2); |
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104 | |
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105 | if (req->statdata) |
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106 | Safefree (req->statdata); |
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107 | |
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108 | if (req->callback) |
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109 | SvREFCNT_dec (req->callback); |
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110 | |
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111 | if (req->type == REQ_READDIR && req->result >= 0) |
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112 | free (req->data2ptr); |
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113 | |
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114 | Safefree (req); |
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115 | } |
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116 | |
67 | static void |
117 | static void |
68 | poll_wait () |
118 | poll_wait () |
69 | { |
119 | { |
70 | if (nreqs && !ress) |
120 | if (nreqs && !ress) |
71 | { |
121 | { |
… | |
… | |
80 | static int |
130 | static int |
81 | poll_cb () |
131 | poll_cb () |
82 | { |
132 | { |
83 | dSP; |
133 | dSP; |
84 | int count = 0; |
134 | int count = 0; |
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135 | int do_croak = 0; |
85 | aio_req req, prv; |
136 | aio_req req; |
86 | |
137 | |
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138 | for (;;) |
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139 | { |
87 | pthread_mutex_lock (&reslock); |
140 | pthread_mutex_lock (&reslock); |
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141 | req = ress; |
88 | |
142 | |
89 | { |
143 | if (req) |
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144 | { |
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145 | ress = req->next; |
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146 | |
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147 | if (!ress) |
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148 | { |
90 | /* read any signals sent by the worker threads */ |
149 | /* read any signals sent by the worker threads */ |
91 | char buf [32]; |
150 | char buf [32]; |
92 | while (read (respipe [0], buf, 32) > 0) |
151 | while (read (respipe [0], buf, 32) == 32) |
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152 | ; |
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153 | |
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154 | rese = 0; |
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155 | } |
93 | ; |
156 | } |
94 | } |
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95 | |
157 | |
96 | req = ress; |
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97 | ress = rese = 0; |
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98 | |
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99 | pthread_mutex_unlock (&reslock); |
158 | pthread_mutex_unlock (&reslock); |
100 | |
159 | |
101 | while (req) |
160 | if (!req) |
102 | { |
161 | break; |
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162 | |
103 | nreqs--; |
163 | nreqs--; |
104 | |
164 | |
105 | if (req->type == REQ_QUIT) |
165 | if (req->type == REQ_QUIT) |
106 | started--; |
166 | started--; |
107 | else |
167 | else |
108 | { |
168 | { |
109 | int errorno = errno; |
169 | int errorno = errno; |
110 | errno = req->errorno; |
170 | errno = req->errorno; |
111 | |
171 | |
112 | if (req->type == REQ_READ) |
172 | if (req->type == REQ_READ) |
113 | SvCUR_set (req->data, req->dataoffset |
173 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
114 | + req->result > 0 ? req->result : 0); |
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115 | |
174 | |
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175 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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176 | SvREADONLY_off (req->data); |
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177 | |
116 | if (req->data) |
178 | if (req->statdata) |
117 | SvREFCNT_dec (req->data); |
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118 | |
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119 | if (req->fh) |
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120 | SvREFCNT_dec (req->fh); |
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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 | { |
179 | { |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
180 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
125 | PL_laststatval = req->result; |
181 | PL_laststatval = req->result; |
126 | PL_statcache = *(req->statdata); |
182 | PL_statcache = *(req->statdata); |
127 | |
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128 | Safefree (req->statdata); |
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129 | } |
183 | } |
130 | |
184 | |
131 | ENTER; |
185 | ENTER; |
132 | PUSHMARK (SP); |
186 | PUSHMARK (SP); |
133 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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134 | |
187 | |
135 | if (req->type == REQ_OPEN) |
188 | if (req->type == REQ_READDIR) |
136 | { |
189 | { |
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190 | SV *rv = &PL_sv_undef; |
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191 | |
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192 | if (req->result >= 0) |
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193 | { |
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194 | char *buf = req->data2ptr; |
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195 | AV *av = newAV (); |
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196 | |
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197 | while (req->result) |
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198 | { |
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199 | SV *sv = newSVpv (buf, 0); |
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200 | |
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201 | av_push (av, sv); |
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202 | buf += SvCUR (sv) + 1; |
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203 | req->result--; |
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204 | } |
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205 | |
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206 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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207 | } |
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208 | |
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209 | XPUSHs (rv); |
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210 | } |
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211 | else |
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212 | { |
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213 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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214 | |
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215 | if (req->type == REQ_OPEN) |
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216 | { |
137 | /* convert fd to fh */ |
217 | /* convert fd to fh */ |
138 | SV *fh; |
218 | SV *fh; |
139 | |
219 | |
140 | PUTBACK; |
220 | PUTBACK; |
141 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
221 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
142 | SPAGAIN; |
222 | SPAGAIN; |
143 | |
223 | |
144 | fh = SvREFCNT_inc (POPs); |
224 | fh = SvREFCNT_inc (POPs); |
145 | |
225 | |
146 | PUSHMARK (SP); |
226 | PUSHMARK (SP); |
147 | XPUSHs (sv_2mortal (fh)); |
227 | XPUSHs (sv_2mortal (fh)); |
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228 | } |
148 | } |
229 | } |
149 | |
230 | |
150 | if (SvOK (req->callback)) |
231 | if (SvOK (req->callback)) |
151 | { |
232 | { |
152 | PUTBACK; |
233 | PUTBACK; |
153 | call_sv (req->callback, G_VOID | G_EVAL); |
234 | call_sv (req->callback, G_VOID | G_EVAL); |
154 | SPAGAIN; |
235 | SPAGAIN; |
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236 | |
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237 | if (SvTRUE (ERRSV)) |
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238 | { |
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239 | free_req (req); |
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240 | croak (0); |
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241 | } |
155 | } |
242 | } |
156 | |
243 | |
157 | LEAVE; |
244 | LEAVE; |
158 | |
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159 | if (req->callback) |
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160 | SvREFCNT_dec (req->callback); |
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161 | |
245 | |
162 | errno = errorno; |
246 | errno = errorno; |
163 | count++; |
247 | count++; |
164 | } |
248 | } |
165 | |
249 | |
166 | prv = req; |
250 | free_req (req); |
167 | req = req->next; |
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168 | Safefree (prv); |
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169 | |
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170 | /* TODO: croak on errors? */ |
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171 | } |
251 | } |
172 | |
252 | |
173 | return count; |
253 | return count; |
174 | } |
254 | } |
175 | |
255 | |
… | |
… | |
196 | } |
276 | } |
197 | |
277 | |
198 | static void |
278 | static void |
199 | send_req (aio_req req) |
279 | send_req (aio_req req) |
200 | { |
280 | { |
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281 | while (started < wanted && nreqs >= started) |
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282 | start_thread (); |
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283 | |
201 | nreqs++; |
284 | nreqs++; |
202 | |
285 | |
203 | pthread_mutex_lock (&reqlock); |
286 | pthread_mutex_lock (&reqlock); |
204 | |
287 | |
205 | req->next = 0; |
288 | req->next = 0; |
… | |
… | |
213 | reqe = reqs = req; |
296 | reqe = reqs = req; |
214 | |
297 | |
215 | pthread_cond_signal (&reqwait); |
298 | pthread_cond_signal (&reqwait); |
216 | pthread_mutex_unlock (&reqlock); |
299 | pthread_mutex_unlock (&reqlock); |
217 | |
300 | |
218 | while (nreqs > max_outstanding) |
301 | if (nreqs > max_outstanding) |
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302 | for (;;) |
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303 | { |
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304 | poll_cb (); |
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305 | |
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306 | if (nreqs <= max_outstanding) |
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307 | break; |
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308 | |
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309 | poll_wait (); |
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310 | } |
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311 | } |
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312 | |
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313 | static void |
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314 | end_thread (void) |
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315 | { |
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316 | aio_req req; |
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317 | Newz (0, req, 1, aio_cb); |
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318 | req->type = REQ_QUIT; |
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319 | |
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320 | send_req (req); |
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321 | } |
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322 | |
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323 | static void min_parallel (int nthreads) |
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324 | { |
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325 | if (wanted < nthreads) |
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326 | wanted = nthreads; |
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327 | } |
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328 | |
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329 | static void max_parallel (int nthreads) |
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330 | { |
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331 | int cur = started; |
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332 | |
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333 | if (wanted > nthreads) |
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334 | wanted = nthreads; |
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335 | |
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336 | while (cur > wanted) |
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337 | { |
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338 | end_thread (); |
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339 | cur--; |
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340 | } |
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341 | |
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342 | while (started > wanted) |
219 | { |
343 | { |
220 | poll_wait (); |
344 | poll_wait (); |
221 | poll_cb (); |
345 | poll_cb (); |
222 | } |
346 | } |
223 | } |
347 | } |
224 | |
348 | |
225 | static void |
349 | static void create_pipe () |
226 | end_thread (void) |
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227 | { |
350 | { |
228 | aio_req req; |
351 | if (pipe (respipe)) |
229 | New (0, req, 1, aio_cb); |
352 | croak ("unable to initialize result pipe"); |
230 | req->type = REQ_QUIT; |
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231 | |
353 | |
232 | send_req (req); |
354 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
233 | } |
355 | croak ("cannot set result pipe to nonblocking mode"); |
234 | |
356 | |
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357 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
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358 | croak ("cannot set result pipe to nonblocking mode"); |
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359 | } |
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360 | |
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361 | /*****************************************************************************/ |
235 | /* work around various missing functions */ |
362 | /* work around various missing functions */ |
236 | |
363 | |
237 | #if !HAVE_PREADWRITE |
364 | #if !HAVE_PREADWRITE |
238 | # define pread aio_pread |
365 | # define pread aio_pread |
239 | # define pwrite aio_pwrite |
366 | # define pwrite aio_pwrite |
… | |
… | |
241 | /* |
368 | /* |
242 | * make our pread/pwrite safe against themselves, but not against |
369 | * make our pread/pwrite safe against themselves, but not against |
243 | * normal read/write by using a mutex. slows down execution a lot, |
370 | * normal read/write by using a mutex. slows down execution a lot, |
244 | * but that's your problem, not mine. |
371 | * but that's your problem, not mine. |
245 | */ |
372 | */ |
246 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
373 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
247 | |
374 | |
248 | static ssize_t |
375 | static ssize_t |
249 | pread (int fd, void *buf, size_t count, off_t offset) |
376 | pread (int fd, void *buf, size_t count, off_t offset) |
250 | { |
377 | { |
251 | ssize_t res; |
378 | ssize_t res; |
252 | off_t ooffset; |
379 | off_t ooffset; |
253 | |
380 | |
254 | pthread_mutex_lock (&iolock); |
381 | pthread_mutex_lock (&preadwritelock); |
255 | ooffset = lseek (fd, 0, SEEK_CUR); |
382 | ooffset = lseek (fd, 0, SEEK_CUR); |
256 | lseek (fd, offset, SEEK_SET); |
383 | lseek (fd, offset, SEEK_SET); |
257 | res = read (fd, buf, count); |
384 | res = read (fd, buf, count); |
258 | lseek (fd, ooffset, SEEK_SET); |
385 | lseek (fd, ooffset, SEEK_SET); |
259 | pthread_mutex_unlock (&iolock); |
386 | pthread_mutex_unlock (&preadwritelock); |
260 | |
387 | |
261 | return res; |
388 | return res; |
262 | } |
389 | } |
263 | |
390 | |
264 | static ssize_t |
391 | static ssize_t |
265 | pwrite (int fd, void *buf, size_t count, off_t offset) |
392 | pwrite (int fd, void *buf, size_t count, off_t offset) |
266 | { |
393 | { |
267 | ssize_t res; |
394 | ssize_t res; |
268 | off_t ooffset; |
395 | off_t ooffset; |
269 | |
396 | |
270 | pthread_mutex_lock (&iolock); |
397 | pthread_mutex_lock (&preadwritelock); |
271 | ooffset = lseek (fd, 0, SEEK_CUR); |
398 | ooffset = lseek (fd, 0, SEEK_CUR); |
272 | lseek (fd, offset, SEEK_SET); |
399 | lseek (fd, offset, SEEK_SET); |
273 | res = write (fd, buf, count); |
400 | res = write (fd, buf, count); |
274 | lseek (fd, offset, SEEK_SET); |
401 | lseek (fd, offset, SEEK_SET); |
275 | pthread_mutex_unlock (&iolock); |
402 | pthread_mutex_unlock (&preadwritelock); |
276 | |
403 | |
277 | return res; |
404 | return res; |
278 | } |
405 | } |
279 | #endif |
406 | #endif |
280 | |
407 | |
… | |
… | |
283 | #endif |
410 | #endif |
284 | |
411 | |
285 | #if !HAVE_READAHEAD |
412 | #if !HAVE_READAHEAD |
286 | # define readahead aio_readahead |
413 | # define readahead aio_readahead |
287 | |
414 | |
288 | static char readahead_buf[4096]; |
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289 | |
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290 | static ssize_t |
415 | static ssize_t |
291 | readahead (int fd, off_t offset, size_t count) |
416 | readahead (int fd, off_t offset, size_t count) |
292 | { |
417 | { |
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418 | char readahead_buf[4096]; |
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419 | |
293 | while (count > 0) |
420 | while (count > 0) |
294 | { |
421 | { |
295 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
422 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
296 | |
423 | |
297 | pread (fd, readahead_buf, len, offset); |
424 | pread (fd, readahead_buf, len, offset); |
… | |
… | |
300 | } |
427 | } |
301 | |
428 | |
302 | errno = 0; |
429 | errno = 0; |
303 | } |
430 | } |
304 | #endif |
431 | #endif |
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432 | |
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433 | #if !HAVE_READDIR_R |
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434 | # define readdir_r aio_readdir_r |
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435 | |
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|
436 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
437 | |
|
|
438 | static int |
|
|
439 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
440 | { |
|
|
441 | struct dirent *e; |
|
|
442 | int errorno; |
|
|
443 | |
|
|
444 | pthread_mutex_lock (&readdirlock); |
|
|
445 | |
|
|
446 | e = readdir (dirp); |
|
|
447 | errorno = errno; |
|
|
448 | |
|
|
449 | if (e) |
|
|
450 | { |
|
|
451 | *res = ent; |
|
|
452 | strcpy (ent->d_name, e->d_name); |
|
|
453 | } |
|
|
454 | else |
|
|
455 | *res = 0; |
|
|
456 | |
|
|
457 | pthread_mutex_unlock (&readdirlock); |
|
|
458 | |
|
|
459 | errno = errorno; |
|
|
460 | return e ? 0 : -1; |
|
|
461 | } |
|
|
462 | #endif |
|
|
463 | |
|
|
464 | /* sendfile always needs emulation */ |
|
|
465 | static ssize_t |
|
|
466 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
467 | { |
|
|
468 | ssize_t res; |
|
|
469 | |
|
|
470 | if (!count) |
|
|
471 | return 0; |
|
|
472 | |
|
|
473 | #if HAVE_SENDFILE |
|
|
474 | # if __linux |
|
|
475 | res = sendfile (ofd, ifd, &offset, count); |
|
|
476 | |
|
|
477 | # elif __freebsd |
|
|
478 | /* |
|
|
479 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
480 | * wasted on making it similar to other I/O functions. |
|
|
481 | */ |
|
|
482 | { |
|
|
483 | off_t sbytes; |
|
|
484 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
485 | |
|
|
486 | if (res < 0 && sbytes) |
|
|
487 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
488 | res = sbytes; |
|
|
489 | } |
|
|
490 | |
|
|
491 | # elif __hpux |
|
|
492 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
493 | |
|
|
494 | # elif __solaris |
|
|
495 | { |
|
|
496 | struct sendfilevec vec; |
|
|
497 | size_t sbytes; |
|
|
498 | |
|
|
499 | vec.sfv_fd = ifd; |
|
|
500 | vec.sfv_flag = 0; |
|
|
501 | vec.sfv_off = offset; |
|
|
502 | vec.sfv_len = count; |
|
|
503 | |
|
|
504 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
505 | |
|
|
506 | if (res < 0 && sbytes) |
|
|
507 | res = sbytes; |
|
|
508 | } |
|
|
509 | |
|
|
510 | # endif |
|
|
511 | #else |
|
|
512 | res = -1; |
|
|
513 | errno = ENOSYS; |
|
|
514 | #endif |
|
|
515 | |
|
|
516 | if (res < 0 |
|
|
517 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
518 | #if __solaris |
|
|
519 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
520 | #endif |
|
|
521 | ) |
|
|
522 | ) |
|
|
523 | { |
|
|
524 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
525 | char buf[4096]; |
|
|
526 | res = 0; |
|
|
527 | |
|
|
528 | while (count) |
|
|
529 | { |
|
|
530 | ssize_t cnt; |
|
|
531 | |
|
|
532 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
|
|
533 | |
|
|
534 | if (cnt <= 0) |
|
|
535 | { |
|
|
536 | if (cnt && !res) res = -1; |
|
|
537 | break; |
|
|
538 | } |
|
|
539 | |
|
|
540 | cnt = write (ofd, buf, cnt); |
|
|
541 | |
|
|
542 | if (cnt <= 0) |
|
|
543 | { |
|
|
544 | if (cnt && !res) res = -1; |
|
|
545 | break; |
|
|
546 | } |
|
|
547 | |
|
|
548 | offset += cnt; |
|
|
549 | res += cnt; |
|
|
550 | count -= cnt; |
|
|
551 | } |
|
|
552 | } |
|
|
553 | |
|
|
554 | return res; |
|
|
555 | } |
|
|
556 | |
|
|
557 | /* read a full directory */ |
|
|
558 | static int |
|
|
559 | scandir_ (const char *path, void **namesp) |
|
|
560 | { |
|
|
561 | DIR *dirp = opendir (path); |
|
|
562 | union |
|
|
563 | { |
|
|
564 | struct dirent d; |
|
|
565 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
566 | } u; |
|
|
567 | struct dirent *entp; |
|
|
568 | char *name, *names; |
|
|
569 | int memlen = 4096; |
|
|
570 | int memofs = 0; |
|
|
571 | int res = 0; |
|
|
572 | int errorno; |
|
|
573 | |
|
|
574 | if (!dirp) |
|
|
575 | return -1; |
|
|
576 | |
|
|
577 | names = malloc (memlen); |
|
|
578 | |
|
|
579 | for (;;) |
|
|
580 | { |
|
|
581 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
582 | |
|
|
583 | if (!entp) |
|
|
584 | break; |
|
|
585 | |
|
|
586 | name = entp->d_name; |
|
|
587 | |
|
|
588 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
589 | { |
|
|
590 | int len = strlen (name) + 1; |
|
|
591 | |
|
|
592 | res++; |
|
|
593 | |
|
|
594 | while (memofs + len > memlen) |
|
|
595 | { |
|
|
596 | memlen *= 2; |
|
|
597 | names = realloc (names, memlen); |
|
|
598 | if (!names) |
|
|
599 | break; |
|
|
600 | } |
|
|
601 | |
|
|
602 | memcpy (names + memofs, name, len); |
|
|
603 | memofs += len; |
|
|
604 | } |
|
|
605 | } |
|
|
606 | |
|
|
607 | errorno = errno; |
|
|
608 | closedir (dirp); |
|
|
609 | |
|
|
610 | if (errorno) |
|
|
611 | { |
|
|
612 | free (names); |
|
|
613 | errno = errorno; |
|
|
614 | res = -1; |
|
|
615 | } |
|
|
616 | |
|
|
617 | *namesp = (void *)names; |
|
|
618 | return res; |
|
|
619 | } |
|
|
620 | |
|
|
621 | /*****************************************************************************/ |
305 | |
622 | |
306 | static void * |
623 | static void * |
307 | aio_proc (void *thr_arg) |
624 | aio_proc (void *thr_arg) |
308 | { |
625 | { |
309 | aio_req req; |
626 | aio_req req; |
… | |
… | |
339 | { |
656 | { |
340 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
657 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
341 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
658 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
342 | |
659 | |
343 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
660 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
661 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
344 | |
662 | |
345 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
663 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
346 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
664 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
347 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
665 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
348 | |
666 | |
349 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
667 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
350 | case REQ_CLOSE: req->result = close (req->fd); break; |
668 | case REQ_CLOSE: req->result = close (req->fd); break; |
351 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
669 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
670 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
671 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
672 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
673 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
352 | |
674 | |
353 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
675 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
354 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
676 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
677 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
355 | |
678 | |
356 | case REQ_QUIT: |
679 | case REQ_QUIT: |
357 | break; |
680 | break; |
358 | |
681 | |
359 | default: |
682 | default: |
… | |
… | |
385 | while (type != REQ_QUIT); |
708 | while (type != REQ_QUIT); |
386 | |
709 | |
387 | return 0; |
710 | return 0; |
388 | } |
711 | } |
389 | |
712 | |
|
|
713 | /*****************************************************************************/ |
|
|
714 | |
|
|
715 | static void atfork_prepare (void) |
|
|
716 | { |
|
|
717 | pthread_mutex_lock (&reqlock); |
|
|
718 | pthread_mutex_lock (&reslock); |
|
|
719 | #if !HAVE_PREADWRITE |
|
|
720 | pthread_mutex_lock (&preadwritelock); |
|
|
721 | #endif |
|
|
722 | #if !HAVE_READDIR_R |
|
|
723 | pthread_mutex_lock (&readdirlock); |
|
|
724 | #endif |
|
|
725 | } |
|
|
726 | |
|
|
727 | static void atfork_parent (void) |
|
|
728 | { |
|
|
729 | #if !HAVE_READDIR_R |
|
|
730 | pthread_mutex_unlock (&readdirlock); |
|
|
731 | #endif |
|
|
732 | #if !HAVE_PREADWRITE |
|
|
733 | pthread_mutex_unlock (&preadwritelock); |
|
|
734 | #endif |
|
|
735 | pthread_mutex_unlock (&reslock); |
|
|
736 | pthread_mutex_unlock (&reqlock); |
|
|
737 | } |
|
|
738 | |
|
|
739 | static void atfork_child (void) |
|
|
740 | { |
|
|
741 | aio_req prv; |
|
|
742 | |
|
|
743 | started = 0; |
|
|
744 | |
|
|
745 | while (reqs) |
|
|
746 | { |
|
|
747 | prv = reqs; |
|
|
748 | reqs = prv->next; |
|
|
749 | free_req (prv); |
|
|
750 | } |
|
|
751 | |
|
|
752 | reqs = reqe = 0; |
|
|
753 | |
|
|
754 | while (ress) |
|
|
755 | { |
|
|
756 | prv = ress; |
|
|
757 | ress = prv->next; |
|
|
758 | free_req (prv); |
|
|
759 | } |
|
|
760 | |
|
|
761 | ress = rese = 0; |
|
|
762 | |
|
|
763 | close (respipe [0]); |
|
|
764 | close (respipe [1]); |
|
|
765 | create_pipe (); |
|
|
766 | |
|
|
767 | atfork_parent (); |
|
|
768 | } |
|
|
769 | |
|
|
770 | #define dREQ \ |
|
|
771 | aio_req req; \ |
|
|
772 | \ |
|
|
773 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
774 | croak ("clalback must be undef or of reference type"); \ |
|
|
775 | \ |
|
|
776 | Newz (0, req, 1, aio_cb); \ |
|
|
777 | if (!req) \ |
|
|
778 | croak ("out of memory during aio_req allocation"); \ |
|
|
779 | \ |
|
|
780 | req->callback = newSVsv (callback); |
|
|
781 | |
390 | MODULE = IO::AIO PACKAGE = IO::AIO |
782 | MODULE = IO::AIO PACKAGE = IO::AIO |
391 | |
783 | |
392 | PROTOTYPES: ENABLE |
784 | PROTOTYPES: ENABLE |
393 | |
785 | |
394 | BOOT: |
786 | BOOT: |
395 | { |
787 | { |
396 | if (pipe (respipe)) |
788 | HV *stash = gv_stashpv ("IO::AIO", 1); |
397 | croak ("unable to initialize result pipe"); |
789 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
790 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
791 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
398 | |
792 | |
399 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
793 | create_pipe (); |
400 | croak ("cannot set result pipe to nonblocking mode"); |
794 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
401 | |
|
|
402 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
403 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
404 | } |
795 | } |
405 | |
796 | |
406 | void |
797 | void |
407 | min_parallel(nthreads) |
798 | min_parallel (nthreads) |
408 | int nthreads |
799 | int nthreads |
409 | PROTOTYPE: $ |
800 | PROTOTYPE: $ |
410 | CODE: |
|
|
411 | while (nthreads > started) |
|
|
412 | start_thread (); |
|
|
413 | |
801 | |
414 | void |
802 | void |
415 | max_parallel(nthreads) |
803 | max_parallel (nthreads) |
416 | int nthreads |
804 | int nthreads |
417 | PROTOTYPE: $ |
805 | PROTOTYPE: $ |
418 | CODE: |
|
|
419 | { |
|
|
420 | int cur = started; |
|
|
421 | while (cur > nthreads) |
|
|
422 | { |
|
|
423 | end_thread (); |
|
|
424 | cur--; |
|
|
425 | } |
|
|
426 | |
|
|
427 | while (started > nthreads) |
|
|
428 | { |
|
|
429 | poll_wait (); |
|
|
430 | poll_cb (); |
|
|
431 | } |
|
|
432 | } |
|
|
433 | |
806 | |
434 | int |
807 | int |
435 | max_outstanding(nreqs) |
808 | max_outstanding (nreqs) |
436 | int nreqs |
809 | int nreqs |
437 | PROTOTYPE: $ |
810 | PROTOTYPE: $ |
438 | CODE: |
811 | CODE: |
439 | RETVAL = max_outstanding; |
812 | RETVAL = max_outstanding; |
440 | max_outstanding = nreqs; |
813 | max_outstanding = nreqs; |
441 | |
814 | |
442 | void |
815 | void |
443 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
816 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
444 | SV * pathname |
817 | SV * pathname |
445 | int flags |
818 | int flags |
446 | int mode |
819 | int mode |
447 | SV * callback |
820 | SV * callback |
448 | PROTOTYPE: $$$;$ |
821 | PROTOTYPE: $$$;$ |
449 | CODE: |
822 | CODE: |
450 | { |
823 | { |
451 | aio_req req; |
824 | dREQ; |
452 | |
|
|
453 | Newz (0, req, 1, aio_cb); |
|
|
454 | |
|
|
455 | if (!req) |
|
|
456 | croak ("out of memory during aio_req allocation"); |
|
|
457 | |
825 | |
458 | req->type = REQ_OPEN; |
826 | req->type = REQ_OPEN; |
459 | req->data = newSVsv (pathname); |
827 | req->data = newSVsv (pathname); |
460 | req->dataptr = SvPV_nolen (req->data); |
828 | req->dataptr = SvPVbyte_nolen (req->data); |
461 | req->fd = flags; |
829 | req->fd = flags; |
462 | req->mode = mode; |
830 | req->mode = mode; |
463 | req->callback = SvREFCNT_inc (callback); |
|
|
464 | |
831 | |
465 | send_req (req); |
832 | send_req (req); |
466 | } |
833 | } |
467 | |
834 | |
468 | void |
835 | void |
469 | aio_close(fh,callback=&PL_sv_undef) |
836 | aio_close (fh,callback=&PL_sv_undef) |
470 | SV * fh |
837 | SV * fh |
471 | SV * callback |
838 | SV * callback |
472 | PROTOTYPE: $;$ |
839 | PROTOTYPE: $;$ |
473 | ALIAS: |
840 | ALIAS: |
474 | aio_close = REQ_CLOSE |
841 | aio_close = REQ_CLOSE |
475 | aio_fsync = REQ_FSYNC |
842 | aio_fsync = REQ_FSYNC |
476 | aio_fdatasync = REQ_FDATASYNC |
843 | aio_fdatasync = REQ_FDATASYNC |
477 | CODE: |
844 | CODE: |
478 | { |
845 | { |
479 | aio_req req; |
846 | dREQ; |
480 | |
|
|
481 | Newz (0, req, 1, aio_cb); |
|
|
482 | |
|
|
483 | if (!req) |
|
|
484 | croak ("out of memory during aio_req allocation"); |
|
|
485 | |
847 | |
486 | req->type = ix; |
848 | req->type = ix; |
487 | req->fh = newSVsv (fh); |
849 | req->fh = newSVsv (fh); |
488 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
850 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
489 | req->callback = SvREFCNT_inc (callback); |
|
|
490 | |
851 | |
491 | send_req (req); |
852 | send_req (req); |
492 | } |
853 | } |
493 | |
854 | |
494 | void |
855 | void |
495 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
856 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
496 | SV * fh |
857 | SV * fh |
497 | UV offset |
858 | UV offset |
498 | IV length |
859 | UV length |
499 | SV * data |
860 | SV * data |
500 | IV dataoffset |
861 | UV dataoffset |
501 | SV * callback |
862 | SV * callback |
502 | ALIAS: |
863 | ALIAS: |
503 | aio_read = REQ_READ |
864 | aio_read = REQ_READ |
504 | aio_write = REQ_WRITE |
865 | aio_write = REQ_WRITE |
505 | PROTOTYPE: $$$$$;$ |
866 | PROTOTYPE: $$$$$;$ |
506 | CODE: |
867 | CODE: |
507 | { |
868 | { |
508 | aio_req req; |
869 | aio_req req; |
509 | STRLEN svlen; |
870 | STRLEN svlen; |
510 | char *svptr = SvPV (data, svlen); |
871 | char *svptr = SvPVbyte (data, svlen); |
511 | |
872 | |
512 | SvUPGRADE (data, SVt_PV); |
873 | SvUPGRADE (data, SVt_PV); |
513 | SvPOK_on (data); |
874 | SvPOK_on (data); |
514 | |
875 | |
515 | if (dataoffset < 0) |
876 | if (dataoffset < 0) |
… | |
… | |
531 | } |
892 | } |
532 | |
893 | |
533 | if (length < 0) |
894 | if (length < 0) |
534 | croak ("length must not be negative"); |
895 | croak ("length must not be negative"); |
535 | |
896 | |
536 | Newz (0, req, 1, aio_cb); |
897 | { |
|
|
898 | dREQ; |
537 | |
899 | |
538 | if (!req) |
|
|
539 | croak ("out of memory during aio_req allocation"); |
|
|
540 | |
|
|
541 | req->type = ix; |
900 | req->type = ix; |
542 | req->fh = newSVsv (fh); |
901 | req->fh = newSVsv (fh); |
543 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
902 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
544 | : IoOFP (sv_2io (fh))); |
903 | : IoOFP (sv_2io (fh))); |
545 | req->offset = offset; |
904 | req->offset = offset; |
|
|
905 | req->length = length; |
|
|
906 | req->data = SvREFCNT_inc (data); |
|
|
907 | req->dataptr = (char *)svptr + dataoffset; |
|
|
908 | |
|
|
909 | if (!SvREADONLY (data)) |
|
|
910 | { |
|
|
911 | SvREADONLY_on (data); |
|
|
912 | req->data2ptr = (void *)data; |
|
|
913 | } |
|
|
914 | |
|
|
915 | send_req (req); |
|
|
916 | } |
|
|
917 | } |
|
|
918 | |
|
|
919 | void |
|
|
920 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
921 | SV * out_fh |
|
|
922 | SV * in_fh |
|
|
923 | UV in_offset |
|
|
924 | UV length |
|
|
925 | SV * callback |
|
|
926 | PROTOTYPE: $$$$;$ |
|
|
927 | CODE: |
|
|
928 | { |
|
|
929 | dREQ; |
|
|
930 | |
|
|
931 | req->type = REQ_SENDFILE; |
|
|
932 | req->fh = newSVsv (out_fh); |
|
|
933 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
934 | req->fh2 = newSVsv (in_fh); |
|
|
935 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
936 | req->offset = in_offset; |
546 | req->length = length; |
937 | req->length = length; |
547 | req->data = SvREFCNT_inc (data); |
|
|
548 | req->dataptr = (char *)svptr + dataoffset; |
|
|
549 | req->callback = SvREFCNT_inc (callback); |
|
|
550 | |
938 | |
551 | send_req (req); |
939 | send_req (req); |
552 | } |
940 | } |
553 | |
941 | |
554 | void |
942 | void |
555 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
943 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
556 | SV * fh |
944 | SV * fh |
557 | UV offset |
945 | UV offset |
558 | IV length |
946 | IV length |
559 | SV * callback |
947 | SV * callback |
560 | PROTOTYPE: $$$;$ |
948 | PROTOTYPE: $$$;$ |
561 | CODE: |
949 | CODE: |
562 | { |
950 | { |
563 | aio_req req; |
951 | dREQ; |
564 | |
|
|
565 | if (length < 0) |
|
|
566 | croak ("length must not be negative"); |
|
|
567 | |
|
|
568 | Newz (0, req, 1, aio_cb); |
|
|
569 | |
|
|
570 | if (!req) |
|
|
571 | croak ("out of memory during aio_req allocation"); |
|
|
572 | |
952 | |
573 | req->type = REQ_READAHEAD; |
953 | req->type = REQ_READAHEAD; |
574 | req->fh = newSVsv (fh); |
954 | req->fh = newSVsv (fh); |
575 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
955 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
576 | req->offset = offset; |
956 | req->offset = offset; |
577 | req->length = length; |
957 | req->length = length; |
578 | req->callback = SvREFCNT_inc (callback); |
|
|
579 | |
958 | |
580 | send_req (req); |
959 | send_req (req); |
581 | } |
960 | } |
582 | |
961 | |
583 | void |
962 | void |
584 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
963 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
585 | SV * fh_or_path |
964 | SV * fh_or_path |
586 | SV * callback |
965 | SV * callback |
587 | ALIAS: |
966 | ALIAS: |
588 | aio_stat = REQ_STAT |
967 | aio_stat = REQ_STAT |
589 | aio_lstat = REQ_LSTAT |
968 | aio_lstat = REQ_LSTAT |
590 | CODE: |
969 | CODE: |
591 | { |
970 | { |
592 | aio_req req; |
971 | dREQ; |
593 | |
|
|
594 | Newz (0, req, 1, aio_cb); |
|
|
595 | |
|
|
596 | if (!req) |
|
|
597 | croak ("out of memory during aio_req allocation"); |
|
|
598 | |
972 | |
599 | New (0, req->statdata, 1, Stat_t); |
973 | New (0, req->statdata, 1, Stat_t); |
600 | |
|
|
601 | if (!req->statdata) |
974 | if (!req->statdata) |
|
|
975 | { |
|
|
976 | free_req (req); |
602 | croak ("out of memory during aio_req->statdata allocation"); |
977 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
978 | } |
603 | |
979 | |
604 | if (SvPOK (fh_or_path)) |
980 | if (SvPOK (fh_or_path)) |
605 | { |
981 | { |
606 | req->type = ix; |
982 | req->type = ix; |
607 | req->data = newSVsv (fh_or_path); |
983 | req->data = newSVsv (fh_or_path); |
608 | req->dataptr = SvPV_nolen (req->data); |
984 | req->dataptr = SvPVbyte_nolen (req->data); |
609 | } |
985 | } |
610 | else |
986 | else |
611 | { |
987 | { |
612 | req->type = REQ_FSTAT; |
988 | req->type = REQ_FSTAT; |
613 | req->fh = newSVsv (fh_or_path); |
989 | req->fh = newSVsv (fh_or_path); |
614 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
990 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
615 | } |
991 | } |
616 | |
992 | |
617 | req->callback = SvREFCNT_inc (callback); |
|
|
618 | |
|
|
619 | send_req (req); |
993 | send_req (req); |
620 | } |
994 | } |
621 | |
995 | |
622 | void |
996 | void |
623 | aio_unlink(pathname,callback=&PL_sv_undef) |
997 | aio_unlink (pathname,callback=&PL_sv_undef) |
624 | SV * pathname |
998 | SV * pathname |
625 | SV * callback |
999 | SV * callback |
|
|
1000 | ALIAS: |
|
|
1001 | aio_unlink = REQ_UNLINK |
|
|
1002 | aio_rmdir = REQ_RMDIR |
|
|
1003 | aio_readdir = REQ_READDIR |
626 | CODE: |
1004 | CODE: |
627 | { |
1005 | { |
628 | aio_req req; |
1006 | dREQ; |
629 | |
1007 | |
630 | Newz (0, req, 1, aio_cb); |
1008 | req->type = ix; |
631 | |
|
|
632 | if (!req) |
|
|
633 | croak ("out of memory during aio_req allocation"); |
|
|
634 | |
|
|
635 | req->type = REQ_UNLINK; |
|
|
636 | req->data = newSVsv (pathname); |
1009 | req->data = newSVsv (pathname); |
637 | req->dataptr = SvPV_nolen (req->data); |
1010 | req->dataptr = SvPVbyte_nolen (req->data); |
638 | req->callback = SvREFCNT_inc (callback); |
|
|
639 | |
1011 | |
640 | send_req (req); |
1012 | send_req (req); |
641 | } |
1013 | } |
642 | |
1014 | |
643 | void |
1015 | void |
|
|
1016 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1017 | SV * oldpath |
|
|
1018 | SV * newpath |
|
|
1019 | SV * callback |
|
|
1020 | ALIAS: |
|
|
1021 | aio_link = REQ_LINK |
|
|
1022 | aio_symlink = REQ_SYMLINK |
|
|
1023 | aio_rename = REQ_RENAME |
|
|
1024 | CODE: |
|
|
1025 | { |
|
|
1026 | dREQ; |
|
|
1027 | |
|
|
1028 | req->type = ix; |
|
|
1029 | req->fh = newSVsv (oldpath); |
|
|
1030 | req->data2ptr = SvPVbyte_nolen (req->fh); |
|
|
1031 | req->data = newSVsv (newpath); |
|
|
1032 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1033 | |
|
|
1034 | send_req (req); |
|
|
1035 | } |
|
|
1036 | |
|
|
1037 | #if 0 |
|
|
1038 | |
|
|
1039 | # undocumented, because it does not cancel active requests |
|
|
1040 | void |
|
|
1041 | cancel_most_requests () |
|
|
1042 | PROTOTYPE: |
|
|
1043 | CODE: |
|
|
1044 | { |
|
|
1045 | aio_req *req; |
|
|
1046 | |
|
|
1047 | pthread_mutex_lock (&reqlock); |
|
|
1048 | for (req = reqs; req; req = req->next) |
|
|
1049 | req->flags |= 1; |
|
|
1050 | pthread_mutex_unlock (&reqlock); |
|
|
1051 | |
|
|
1052 | pthread_mutex_lock (&reslock); |
|
|
1053 | for (req = ress; req; req = req->next) |
|
|
1054 | req->flags |= 1; |
|
|
1055 | pthread_mutex_unlock (&reslock); |
|
|
1056 | } |
|
|
1057 | |
|
|
1058 | #endif |
|
|
1059 | |
|
|
1060 | void |
644 | flush() |
1061 | flush () |
645 | PROTOTYPE: |
1062 | PROTOTYPE: |
646 | CODE: |
1063 | CODE: |
647 | while (nreqs) |
1064 | while (nreqs) |
648 | { |
1065 | { |
649 | poll_wait (); |
1066 | poll_wait (); |