… | |
… | |
5 | #include "perl.h" |
5 | #include "perl.h" |
6 | #include "XSUB.h" |
6 | #include "XSUB.h" |
7 | |
7 | |
8 | #include "autoconf/config.h" |
8 | #include "autoconf/config.h" |
9 | |
9 | |
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10 | #include <pthread.h> |
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11 | |
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12 | #include <stddef.h> |
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13 | #include <errno.h> |
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14 | #include <sys/time.h> |
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15 | #include <sys/select.h> |
10 | #include <sys/types.h> |
16 | #include <sys/types.h> |
11 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
12 | |
18 | #include <limits.h> |
13 | #include <unistd.h> |
19 | #include <unistd.h> |
14 | #include <fcntl.h> |
20 | #include <fcntl.h> |
15 | #include <signal.h> |
21 | #include <signal.h> |
16 | #include <sched.h> |
22 | #include <sched.h> |
17 | |
23 | |
18 | #include <pthread.h> |
24 | #if HAVE_SENDFILE |
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25 | # if __linux |
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26 | # include <sys/sendfile.h> |
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27 | # elif __freebsd |
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28 | # include <sys/socket.h> |
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29 | # include <sys/uio.h> |
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30 | # elif __hpux |
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31 | # include <sys/socket.h> |
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32 | # elif __solaris /* not yet */ |
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33 | # include <sys/sendfile.h> |
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34 | # else |
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35 | # error sendfile support requested but not available |
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36 | # endif |
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37 | #endif |
19 | |
38 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
39 | /* used for struct dirent, AIX doesn't provide it */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
40 | #ifndef NAME_MAX |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
41 | # define NAME_MAX 4096 |
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42 | #endif |
23 | |
43 | |
24 | #if __ia64 |
44 | #if __ia64 |
25 | # define STACKSIZE 65536 |
45 | # define STACKSIZE 65536 |
26 | #else |
46 | #else |
27 | # define STACKSIZE 4096 |
47 | # define STACKSIZE 8192 |
28 | #endif |
48 | #endif |
29 | |
49 | |
30 | enum { |
50 | enum { |
31 | REQ_QUIT, |
51 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
52 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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54 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
56 | REQ_FSYNC, REQ_FDATASYNC, |
36 | REQ_UNLINK, REQ_RMDIR, |
57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
37 | REQ_SYMLINK, |
58 | REQ_READDIR, |
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59 | REQ_LINK, REQ_SYMLINK, |
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60 | REQ_SLEEP, |
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61 | REQ_GROUP, |
38 | }; |
62 | }; |
39 | |
63 | |
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64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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66 | |
40 | typedef struct aio_cb { |
67 | typedef struct aio_cb |
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68 | { |
41 | struct aio_cb *volatile next; |
69 | struct aio_cb *volatile next; |
42 | |
70 | |
43 | int type; |
71 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
44 | |
72 | |
45 | int fd; |
73 | SV *self; /* the perl counterpart of this request, if any */ |
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74 | |
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75 | SV *data, *callback; |
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76 | SV *fh, *fh2; |
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77 | void *dataptr, *data2ptr; |
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78 | Stat_t *statdata; |
46 | off_t offset; |
79 | off_t offset; |
47 | size_t length; |
80 | size_t length; |
48 | ssize_t result; |
81 | ssize_t result; |
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82 | |
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83 | int type; |
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84 | int fd, fd2; |
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85 | int errorno; |
|
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86 | STRLEN dataoffset; |
49 | mode_t mode; /* open */ |
87 | mode_t mode; /* open */ |
50 | int errorno; |
88 | unsigned char cancelled; |
51 | SV *data, *callback, *fh; |
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52 | void *dataptr, *data2ptr; |
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53 | STRLEN dataoffset; |
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54 | |
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55 | Stat_t *statdata; |
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56 | } aio_cb; |
89 | } aio_cb; |
57 | |
90 | |
58 | typedef aio_cb *aio_req; |
91 | typedef aio_cb *aio_req; |
|
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92 | typedef aio_cb *aio_req_ornot; |
59 | |
93 | |
60 | static int started; |
94 | static int started, wanted; |
61 | static volatile int nreqs; |
95 | static volatile int nreqs; |
62 | static int max_outstanding = 1<<30; |
96 | static int max_outstanding = 1<<30; |
63 | static int respipe [2]; |
97 | static int respipe [2]; |
64 | |
98 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
99 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
100 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
67 | static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER; |
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68 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
69 | |
102 | |
70 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
71 | static volatile aio_req ress, rese; /* queue start, queue end */ |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
72 | |
105 | |
73 | static void |
106 | static void req_invoke (aio_req req); |
74 | poll_wait () |
107 | static void req_free (aio_req req); |
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108 | |
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109 | /* must be called at most once */ |
|
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110 | static SV *req_sv (aio_req req, const char *klass) |
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111 | { |
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112 | if (!req->self) |
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113 | { |
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114 | req->self = (SV *)newHV (); |
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115 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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116 | } |
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117 | |
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118 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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119 | } |
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120 | |
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121 | static aio_req SvAIO_REQ (SV *sv) |
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122 | { |
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123 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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124 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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125 | |
|
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126 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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127 | |
|
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128 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
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129 | } |
|
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130 | |
|
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131 | static void aio_grp_feed (aio_req grp) |
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132 | { |
|
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133 | while (grp->length < grp->fd2) |
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134 | { |
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135 | int old_len = grp->length; |
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136 | |
|
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137 | if (grp->fh2 && SvOK (grp->fh2)) |
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138 | { |
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139 | dSP; |
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140 | |
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141 | ENTER; |
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142 | SAVETMPS; |
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143 | PUSHMARK (SP); |
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144 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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145 | PUTBACK; |
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146 | call_sv (grp->fh2, G_VOID | G_EVAL); |
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147 | SPAGAIN; |
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148 | FREETMPS; |
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149 | LEAVE; |
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150 | } |
|
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151 | |
|
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152 | /* stop if no progress has been made */ |
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153 | if (old_len == grp->length) |
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154 | { |
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155 | SvREFCNT_dec (grp->fh2); |
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156 | grp->fh2 = 0; |
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157 | break; |
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158 | } |
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159 | } |
|
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160 | } |
|
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161 | |
|
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162 | static void aio_grp_dec (aio_req grp) |
|
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163 | { |
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164 | --grp->length; |
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165 | |
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166 | /* call feeder, if applicable */ |
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167 | aio_grp_feed (grp); |
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168 | |
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169 | /* finish, if done */ |
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170 | if (!grp->length && grp->fd) |
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171 | { |
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172 | req_invoke (grp); |
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173 | req_free (grp); |
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174 | } |
|
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175 | } |
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176 | |
|
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177 | static void poll_wait () |
75 | { |
178 | { |
76 | if (nreqs && !ress) |
179 | if (nreqs && !ress) |
77 | { |
180 | { |
78 | fd_set rfd; |
181 | fd_set rfd; |
79 | FD_ZERO(&rfd); |
182 | FD_ZERO(&rfd); |
… | |
… | |
81 | |
184 | |
82 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
185 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
83 | } |
186 | } |
84 | } |
187 | } |
85 | |
188 | |
86 | static int |
189 | static void req_invoke (aio_req req) |
87 | poll_cb () |
190 | { |
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191 | dSP; |
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192 | int errorno = errno; |
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193 | |
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194 | if (req->cancelled || !SvOK (req->callback)) |
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195 | return; |
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196 | |
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197 | errno = req->errorno; |
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198 | |
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199 | ENTER; |
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200 | SAVETMPS; |
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201 | PUSHMARK (SP); |
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202 | EXTEND (SP, 1); |
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203 | |
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204 | switch (req->type) |
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205 | { |
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206 | case REQ_READDIR: |
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207 | { |
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208 | SV *rv = &PL_sv_undef; |
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209 | |
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210 | if (req->result >= 0) |
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211 | { |
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212 | char *buf = req->data2ptr; |
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213 | AV *av = newAV (); |
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214 | |
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215 | while (req->result) |
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216 | { |
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217 | SV *sv = newSVpv (buf, 0); |
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218 | |
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219 | av_push (av, sv); |
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220 | buf += SvCUR (sv) + 1; |
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221 | req->result--; |
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222 | } |
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223 | |
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224 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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225 | } |
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226 | |
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227 | PUSHs (rv); |
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228 | } |
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229 | break; |
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230 | |
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231 | case REQ_OPEN: |
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232 | { |
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233 | /* convert fd to fh */ |
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234 | SV *fh; |
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235 | |
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236 | PUSHs (sv_2mortal (newSViv (req->result))); |
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237 | PUTBACK; |
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238 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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239 | SPAGAIN; |
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240 | |
|
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241 | fh = SvREFCNT_inc (POPs); |
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242 | |
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243 | PUSHMARK (SP); |
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244 | XPUSHs (sv_2mortal (fh)); |
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245 | } |
|
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246 | break; |
|
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247 | |
|
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248 | case REQ_GROUP: |
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249 | req->fd = 2; /* mark group as finished */ |
|
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250 | |
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251 | if (req->data) |
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252 | { |
|
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253 | int i; |
|
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254 | AV *av = (AV *)req->data; |
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255 | |
|
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256 | EXTEND (SP, AvFILL (av) + 1); |
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257 | for (i = 0; i <= AvFILL (av); ++i) |
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258 | PUSHs (*av_fetch (av, i, 0)); |
|
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259 | } |
|
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260 | break; |
|
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261 | |
|
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262 | case REQ_SLEEP: |
|
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263 | break; |
|
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264 | |
|
|
265 | default: |
|
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266 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
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267 | break; |
|
|
268 | } |
|
|
269 | |
|
|
270 | |
|
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271 | PUTBACK; |
|
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272 | call_sv (req->callback, G_VOID | G_EVAL); |
|
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273 | SPAGAIN; |
|
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274 | |
|
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275 | if (SvTRUE (ERRSV)) |
|
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276 | { |
|
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277 | req_free (req); |
|
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278 | croak (0); |
|
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279 | } |
|
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280 | |
|
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281 | FREETMPS; |
|
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282 | LEAVE; |
|
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283 | |
|
|
284 | errno = errorno; |
|
|
285 | } |
|
|
286 | |
|
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287 | static void req_free (aio_req req) |
|
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288 | { |
|
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289 | if (req->grp) |
|
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290 | { |
|
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291 | aio_req grp = req->grp; |
|
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292 | |
|
|
293 | /* unlink request */ |
|
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294 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
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295 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
296 | |
|
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297 | if (grp->grp_first == req) |
|
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298 | grp->grp_first = req->grp_next; |
|
|
299 | |
|
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300 | aio_grp_dec (grp); |
|
|
301 | } |
|
|
302 | |
|
|
303 | if (req->self) |
|
|
304 | { |
|
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305 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
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306 | SvREFCNT_dec (req->self); |
|
|
307 | } |
|
|
308 | |
|
|
309 | SvREFCNT_dec (req->data); |
|
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310 | SvREFCNT_dec (req->fh); |
|
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311 | SvREFCNT_dec (req->fh2); |
|
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312 | SvREFCNT_dec (req->callback); |
|
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313 | Safefree (req->statdata); |
|
|
314 | |
|
|
315 | if (req->type == REQ_READDIR && req->result >= 0) |
|
|
316 | free (req->data2ptr); |
|
|
317 | |
|
|
318 | Safefree (req); |
|
|
319 | } |
|
|
320 | |
|
|
321 | static void req_cancel (aio_req req) |
|
|
322 | { |
|
|
323 | req->cancelled = 1; |
|
|
324 | |
|
|
325 | if (req->type == REQ_GROUP) |
|
|
326 | { |
|
|
327 | aio_req sub; |
|
|
328 | |
|
|
329 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
|
330 | req_cancel (sub); |
|
|
331 | } |
|
|
332 | } |
|
|
333 | |
|
|
334 | static int poll_cb () |
88 | { |
335 | { |
89 | dSP; |
336 | dSP; |
90 | int count = 0; |
337 | int count = 0; |
91 | int do_croak = 0; |
338 | int do_croak = 0; |
92 | aio_req req, prv; |
339 | aio_req req; |
93 | |
340 | |
|
|
341 | for (;;) |
|
|
342 | { |
94 | pthread_mutex_lock (&reslock); |
343 | pthread_mutex_lock (&reslock); |
|
|
344 | req = ress; |
95 | |
345 | |
96 | { |
346 | if (req) |
|
|
347 | { |
|
|
348 | ress = req->next; |
|
|
349 | |
|
|
350 | if (!ress) |
|
|
351 | { |
97 | /* read any signals sent by the worker threads */ |
352 | /* read any signals sent by the worker threads */ |
98 | char buf [32]; |
353 | char buf [32]; |
99 | while (read (respipe [0], buf, 32) == 32) |
354 | while (read (respipe [0], buf, 32) == 32) |
|
|
355 | ; |
|
|
356 | |
|
|
357 | rese = 0; |
|
|
358 | } |
100 | ; |
359 | } |
101 | } |
|
|
102 | |
360 | |
103 | req = ress; |
|
|
104 | ress = rese = 0; |
|
|
105 | |
|
|
106 | pthread_mutex_unlock (&reslock); |
361 | pthread_mutex_unlock (&reslock); |
107 | |
362 | |
108 | while (req) |
363 | if (!req) |
109 | { |
364 | break; |
|
|
365 | |
110 | nreqs--; |
366 | --nreqs; |
111 | |
367 | |
112 | if (req->type == REQ_QUIT) |
368 | if (req->type == REQ_QUIT) |
113 | started--; |
369 | started--; |
|
|
370 | else if (req->type == REQ_GROUP && req->length) |
|
|
371 | { |
|
|
372 | req->fd = 1; /* mark request as delayed */ |
|
|
373 | continue; |
|
|
374 | } |
114 | else |
375 | else |
115 | { |
376 | { |
116 | int errorno = errno; |
|
|
117 | errno = req->errorno; |
|
|
118 | |
|
|
119 | if (req->type == REQ_READ) |
377 | if (req->type == REQ_READ) |
120 | SvCUR_set (req->data, req->dataoffset |
378 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
121 | + req->result > 0 ? req->result : 0); |
|
|
122 | |
379 | |
|
|
380 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
381 | SvREADONLY_off (req->data); |
|
|
382 | |
123 | if (req->data) |
383 | if (req->statdata) |
124 | SvREFCNT_dec (req->data); |
|
|
125 | |
|
|
126 | if (req->fh) |
|
|
127 | SvREFCNT_dec (req->fh); |
|
|
128 | |
|
|
129 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
130 | { |
384 | { |
131 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
385 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
132 | PL_laststatval = req->result; |
386 | PL_laststatval = req->result; |
133 | PL_statcache = *(req->statdata); |
387 | PL_statcache = *(req->statdata); |
134 | |
|
|
135 | Safefree (req->statdata); |
|
|
136 | } |
388 | } |
137 | |
389 | |
138 | ENTER; |
390 | req_invoke (req); |
139 | PUSHMARK (SP); |
|
|
140 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
141 | |
391 | |
142 | if (req->type == REQ_OPEN) |
|
|
143 | { |
|
|
144 | /* convert fd to fh */ |
|
|
145 | SV *fh; |
|
|
146 | |
|
|
147 | PUTBACK; |
|
|
148 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
149 | SPAGAIN; |
|
|
150 | |
|
|
151 | fh = SvREFCNT_inc (POPs); |
|
|
152 | |
|
|
153 | PUSHMARK (SP); |
|
|
154 | XPUSHs (sv_2mortal (fh)); |
|
|
155 | } |
|
|
156 | |
|
|
157 | if (SvOK (req->callback)) |
|
|
158 | { |
|
|
159 | PUTBACK; |
|
|
160 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
161 | SPAGAIN; |
|
|
162 | } |
|
|
163 | |
|
|
164 | do_croak = SvTRUE (ERRSV); |
|
|
165 | |
|
|
166 | LEAVE; |
|
|
167 | |
|
|
168 | if (req->callback) |
|
|
169 | SvREFCNT_dec (req->callback); |
|
|
170 | |
|
|
171 | errno = errorno; |
|
|
172 | count++; |
392 | count++; |
173 | } |
393 | } |
174 | |
394 | |
175 | prv = req; |
|
|
176 | req = req->next; |
|
|
177 | Safefree (prv); |
395 | req_free (req); |
178 | |
|
|
179 | if (do_croak) |
|
|
180 | croak (0); |
|
|
181 | } |
396 | } |
182 | |
397 | |
183 | return count; |
398 | return count; |
184 | } |
399 | } |
185 | |
400 | |
186 | static void *aio_proc(void *arg); |
401 | static void *aio_proc(void *arg); |
187 | |
402 | |
188 | static void |
|
|
189 | start_thread (void) |
403 | static void start_thread (void) |
190 | { |
404 | { |
191 | sigset_t fullsigset, oldsigset; |
405 | sigset_t fullsigset, oldsigset; |
192 | pthread_t tid; |
406 | pthread_t tid; |
193 | pthread_attr_t attr; |
407 | pthread_attr_t attr; |
194 | |
408 | |
… | |
… | |
203 | started++; |
417 | started++; |
204 | |
418 | |
205 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
419 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
206 | } |
420 | } |
207 | |
421 | |
208 | static void |
422 | static void req_send (aio_req req) |
209 | send_req (aio_req req) |
|
|
210 | { |
423 | { |
|
|
424 | while (started < wanted && nreqs >= started) |
|
|
425 | start_thread (); |
|
|
426 | |
211 | nreqs++; |
427 | ++nreqs; |
212 | |
428 | |
213 | pthread_mutex_lock (&reqlock); |
429 | pthread_mutex_lock (&reqlock); |
214 | |
430 | |
215 | req->next = 0; |
431 | req->next = 0; |
216 | |
432 | |
… | |
… | |
223 | reqe = reqs = req; |
439 | reqe = reqs = req; |
224 | |
440 | |
225 | pthread_cond_signal (&reqwait); |
441 | pthread_cond_signal (&reqwait); |
226 | pthread_mutex_unlock (&reqlock); |
442 | pthread_mutex_unlock (&reqlock); |
227 | |
443 | |
228 | while (nreqs > max_outstanding) |
444 | if (nreqs > max_outstanding) |
|
|
445 | for (;;) |
|
|
446 | { |
|
|
447 | poll_cb (); |
|
|
448 | |
|
|
449 | if (nreqs <= max_outstanding) |
|
|
450 | break; |
|
|
451 | |
|
|
452 | poll_wait (); |
|
|
453 | } |
|
|
454 | } |
|
|
455 | |
|
|
456 | static void end_thread (void) |
|
|
457 | { |
|
|
458 | aio_req req; |
|
|
459 | Newz (0, req, 1, aio_cb); |
|
|
460 | req->type = REQ_QUIT; |
|
|
461 | |
|
|
462 | req_send (req); |
|
|
463 | } |
|
|
464 | |
|
|
465 | static void min_parallel (int nthreads) |
|
|
466 | { |
|
|
467 | if (wanted < nthreads) |
|
|
468 | wanted = nthreads; |
|
|
469 | } |
|
|
470 | |
|
|
471 | static void max_parallel (int nthreads) |
|
|
472 | { |
|
|
473 | int cur = started; |
|
|
474 | |
|
|
475 | if (wanted > nthreads) |
|
|
476 | wanted = nthreads; |
|
|
477 | |
|
|
478 | while (cur > wanted) |
|
|
479 | { |
|
|
480 | end_thread (); |
|
|
481 | cur--; |
|
|
482 | } |
|
|
483 | |
|
|
484 | while (started > wanted) |
229 | { |
485 | { |
230 | poll_wait (); |
486 | poll_wait (); |
231 | poll_cb (); |
487 | poll_cb (); |
232 | } |
488 | } |
233 | } |
489 | } |
234 | |
490 | |
235 | static void |
491 | static void create_pipe () |
236 | end_thread (void) |
|
|
237 | { |
492 | { |
238 | aio_req req; |
493 | if (pipe (respipe)) |
239 | New (0, req, 1, aio_cb); |
494 | croak ("unable to initialize result pipe"); |
240 | req->type = REQ_QUIT; |
|
|
241 | |
495 | |
242 | send_req (req); |
496 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
243 | } |
497 | croak ("cannot set result pipe to nonblocking mode"); |
244 | |
498 | |
245 | |
499 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
246 | static void min_parallel (int nthreads) |
500 | croak ("cannot set result pipe to nonblocking mode"); |
247 | { |
|
|
248 | while (nthreads > started) |
|
|
249 | start_thread (); |
|
|
250 | } |
|
|
251 | |
|
|
252 | static void max_parallel (int nthreads) |
|
|
253 | { |
|
|
254 | int cur = started; |
|
|
255 | while (cur > nthreads) |
|
|
256 | { |
|
|
257 | end_thread (); |
|
|
258 | cur--; |
|
|
259 | } |
|
|
260 | |
|
|
261 | while (started > nthreads) |
|
|
262 | { |
|
|
263 | poll_wait (); |
|
|
264 | poll_cb (); |
|
|
265 | } |
|
|
266 | } |
|
|
267 | |
|
|
268 | static int fork_started; |
|
|
269 | |
|
|
270 | static void atfork_prepare (void) |
|
|
271 | { |
|
|
272 | pthread_mutex_lock (&frklock); |
|
|
273 | |
|
|
274 | fork_started = started; |
|
|
275 | |
|
|
276 | for (;;) { |
|
|
277 | while (nreqs) |
|
|
278 | { |
|
|
279 | poll_wait (); |
|
|
280 | poll_cb (); |
|
|
281 | } |
|
|
282 | |
|
|
283 | max_parallel (0); |
|
|
284 | |
|
|
285 | pthread_mutex_lock (&reqlock); |
|
|
286 | |
|
|
287 | if (!nreqs && !started) |
|
|
288 | break; |
|
|
289 | |
|
|
290 | pthread_mutex_unlock (&reqlock); |
|
|
291 | |
|
|
292 | min_parallel (fork_started); |
|
|
293 | } |
|
|
294 | |
|
|
295 | pthread_mutex_lock (&reslock); |
|
|
296 | |
|
|
297 | assert (!started); |
|
|
298 | assert (!nreqs); |
|
|
299 | assert (!reqs && !reqe); |
|
|
300 | assert (!ress && !rese); |
|
|
301 | } |
|
|
302 | |
|
|
303 | static void atfork_parent (void) |
|
|
304 | { |
|
|
305 | pthread_mutex_unlock (&reslock); |
|
|
306 | min_parallel (fork_started); |
|
|
307 | pthread_mutex_unlock (&reqlock); |
|
|
308 | pthread_mutex_unlock (&frklock); |
|
|
309 | } |
|
|
310 | |
|
|
311 | static void atfork_child (void) |
|
|
312 | { |
|
|
313 | reqs = reqe = 0; |
|
|
314 | |
|
|
315 | atfork_parent (); |
|
|
316 | } |
501 | } |
317 | |
502 | |
318 | /*****************************************************************************/ |
503 | /*****************************************************************************/ |
319 | /* work around various missing functions */ |
504 | /* work around various missing functions */ |
320 | |
505 | |
… | |
… | |
325 | /* |
510 | /* |
326 | * make our pread/pwrite safe against themselves, but not against |
511 | * make our pread/pwrite safe against themselves, but not against |
327 | * normal read/write by using a mutex. slows down execution a lot, |
512 | * normal read/write by using a mutex. slows down execution a lot, |
328 | * but that's your problem, not mine. |
513 | * but that's your problem, not mine. |
329 | */ |
514 | */ |
330 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
515 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
331 | |
516 | |
332 | static ssize_t |
517 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
333 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
334 | { |
518 | { |
335 | ssize_t res; |
519 | ssize_t res; |
336 | off_t ooffset; |
520 | off_t ooffset; |
337 | |
521 | |
338 | pthread_mutex_lock (&iolock); |
522 | pthread_mutex_lock (&preadwritelock); |
339 | ooffset = lseek (fd, 0, SEEK_CUR); |
523 | ooffset = lseek (fd, 0, SEEK_CUR); |
340 | lseek (fd, offset, SEEK_SET); |
524 | lseek (fd, offset, SEEK_SET); |
341 | res = read (fd, buf, count); |
525 | res = read (fd, buf, count); |
342 | lseek (fd, ooffset, SEEK_SET); |
526 | lseek (fd, ooffset, SEEK_SET); |
343 | pthread_mutex_unlock (&iolock); |
527 | pthread_mutex_unlock (&preadwritelock); |
344 | |
528 | |
345 | return res; |
529 | return res; |
346 | } |
530 | } |
347 | |
531 | |
348 | static ssize_t |
|
|
349 | pwrite (int fd, void *buf, size_t count, off_t offset) |
532 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
350 | { |
533 | { |
351 | ssize_t res; |
534 | ssize_t res; |
352 | off_t ooffset; |
535 | off_t ooffset; |
353 | |
536 | |
354 | pthread_mutex_lock (&iolock); |
537 | pthread_mutex_lock (&preadwritelock); |
355 | ooffset = lseek (fd, 0, SEEK_CUR); |
538 | ooffset = lseek (fd, 0, SEEK_CUR); |
356 | lseek (fd, offset, SEEK_SET); |
539 | lseek (fd, offset, SEEK_SET); |
357 | res = write (fd, buf, count); |
540 | res = write (fd, buf, count); |
358 | lseek (fd, offset, SEEK_SET); |
541 | lseek (fd, offset, SEEK_SET); |
359 | pthread_mutex_unlock (&iolock); |
542 | pthread_mutex_unlock (&preadwritelock); |
360 | |
543 | |
361 | return res; |
544 | return res; |
362 | } |
545 | } |
363 | #endif |
546 | #endif |
364 | |
547 | |
… | |
… | |
367 | #endif |
550 | #endif |
368 | |
551 | |
369 | #if !HAVE_READAHEAD |
552 | #if !HAVE_READAHEAD |
370 | # define readahead aio_readahead |
553 | # define readahead aio_readahead |
371 | |
554 | |
|
|
555 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
556 | { |
372 | static char readahead_buf[4096]; |
557 | char readahead_buf[4096]; |
373 | |
558 | |
374 | static ssize_t |
|
|
375 | readahead (int fd, off_t offset, size_t count) |
|
|
376 | { |
|
|
377 | while (count > 0) |
559 | while (count > 0) |
378 | { |
560 | { |
379 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
561 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
380 | |
562 | |
381 | pread (fd, readahead_buf, len, offset); |
563 | pread (fd, readahead_buf, len, offset); |
… | |
… | |
385 | |
567 | |
386 | errno = 0; |
568 | errno = 0; |
387 | } |
569 | } |
388 | #endif |
570 | #endif |
389 | |
571 | |
|
|
572 | #if !HAVE_READDIR_R |
|
|
573 | # define readdir_r aio_readdir_r |
|
|
574 | |
|
|
575 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
576 | |
|
|
577 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
578 | { |
|
|
579 | struct dirent *e; |
|
|
580 | int errorno; |
|
|
581 | |
|
|
582 | pthread_mutex_lock (&readdirlock); |
|
|
583 | |
|
|
584 | e = readdir (dirp); |
|
|
585 | errorno = errno; |
|
|
586 | |
|
|
587 | if (e) |
|
|
588 | { |
|
|
589 | *res = ent; |
|
|
590 | strcpy (ent->d_name, e->d_name); |
|
|
591 | } |
|
|
592 | else |
|
|
593 | *res = 0; |
|
|
594 | |
|
|
595 | pthread_mutex_unlock (&readdirlock); |
|
|
596 | |
|
|
597 | errno = errorno; |
|
|
598 | return e ? 0 : -1; |
|
|
599 | } |
|
|
600 | #endif |
|
|
601 | |
|
|
602 | /* sendfile always needs emulation */ |
|
|
603 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
604 | { |
|
|
605 | ssize_t res; |
|
|
606 | |
|
|
607 | if (!count) |
|
|
608 | return 0; |
|
|
609 | |
|
|
610 | #if HAVE_SENDFILE |
|
|
611 | # if __linux |
|
|
612 | res = sendfile (ofd, ifd, &offset, count); |
|
|
613 | |
|
|
614 | # elif __freebsd |
|
|
615 | /* |
|
|
616 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
617 | * wasted on making it similar to other I/O functions. |
|
|
618 | */ |
|
|
619 | { |
|
|
620 | off_t sbytes; |
|
|
621 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
622 | |
|
|
623 | if (res < 0 && sbytes) |
|
|
624 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
625 | res = sbytes; |
|
|
626 | } |
|
|
627 | |
|
|
628 | # elif __hpux |
|
|
629 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
630 | |
|
|
631 | # elif __solaris |
|
|
632 | { |
|
|
633 | struct sendfilevec vec; |
|
|
634 | size_t sbytes; |
|
|
635 | |
|
|
636 | vec.sfv_fd = ifd; |
|
|
637 | vec.sfv_flag = 0; |
|
|
638 | vec.sfv_off = offset; |
|
|
639 | vec.sfv_len = count; |
|
|
640 | |
|
|
641 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
642 | |
|
|
643 | if (res < 0 && sbytes) |
|
|
644 | res = sbytes; |
|
|
645 | } |
|
|
646 | |
|
|
647 | # endif |
|
|
648 | #else |
|
|
649 | res = -1; |
|
|
650 | errno = ENOSYS; |
|
|
651 | #endif |
|
|
652 | |
|
|
653 | if (res < 0 |
|
|
654 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
655 | #if __solaris |
|
|
656 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
657 | #endif |
|
|
658 | ) |
|
|
659 | ) |
|
|
660 | { |
|
|
661 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
662 | char buf[4096]; |
|
|
663 | res = 0; |
|
|
664 | |
|
|
665 | while (count) |
|
|
666 | { |
|
|
667 | ssize_t cnt; |
|
|
668 | |
|
|
669 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
|
|
670 | |
|
|
671 | if (cnt <= 0) |
|
|
672 | { |
|
|
673 | if (cnt && !res) res = -1; |
|
|
674 | break; |
|
|
675 | } |
|
|
676 | |
|
|
677 | cnt = write (ofd, buf, cnt); |
|
|
678 | |
|
|
679 | if (cnt <= 0) |
|
|
680 | { |
|
|
681 | if (cnt && !res) res = -1; |
|
|
682 | break; |
|
|
683 | } |
|
|
684 | |
|
|
685 | offset += cnt; |
|
|
686 | res += cnt; |
|
|
687 | count -= cnt; |
|
|
688 | } |
|
|
689 | } |
|
|
690 | |
|
|
691 | return res; |
|
|
692 | } |
|
|
693 | |
|
|
694 | /* read a full directory */ |
|
|
695 | static int scandir_ (const char *path, void **namesp) |
|
|
696 | { |
|
|
697 | DIR *dirp = opendir (path); |
|
|
698 | union |
|
|
699 | { |
|
|
700 | struct dirent d; |
|
|
701 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
702 | } u; |
|
|
703 | struct dirent *entp; |
|
|
704 | char *name, *names; |
|
|
705 | int memlen = 4096; |
|
|
706 | int memofs = 0; |
|
|
707 | int res = 0; |
|
|
708 | int errorno; |
|
|
709 | |
|
|
710 | if (!dirp) |
|
|
711 | return -1; |
|
|
712 | |
|
|
713 | names = malloc (memlen); |
|
|
714 | |
|
|
715 | for (;;) |
|
|
716 | { |
|
|
717 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
718 | |
|
|
719 | if (!entp) |
|
|
720 | break; |
|
|
721 | |
|
|
722 | name = entp->d_name; |
|
|
723 | |
|
|
724 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
725 | { |
|
|
726 | int len = strlen (name) + 1; |
|
|
727 | |
|
|
728 | res++; |
|
|
729 | |
|
|
730 | while (memofs + len > memlen) |
|
|
731 | { |
|
|
732 | memlen *= 2; |
|
|
733 | names = realloc (names, memlen); |
|
|
734 | if (!names) |
|
|
735 | break; |
|
|
736 | } |
|
|
737 | |
|
|
738 | memcpy (names + memofs, name, len); |
|
|
739 | memofs += len; |
|
|
740 | } |
|
|
741 | } |
|
|
742 | |
|
|
743 | errorno = errno; |
|
|
744 | closedir (dirp); |
|
|
745 | |
|
|
746 | if (errorno) |
|
|
747 | { |
|
|
748 | free (names); |
|
|
749 | errno = errorno; |
|
|
750 | res = -1; |
|
|
751 | } |
|
|
752 | |
|
|
753 | *namesp = (void *)names; |
|
|
754 | return res; |
|
|
755 | } |
|
|
756 | |
390 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
391 | |
758 | |
392 | static void * |
|
|
393 | aio_proc (void *thr_arg) |
759 | static void *aio_proc (void *thr_arg) |
394 | { |
760 | { |
395 | aio_req req; |
761 | aio_req req; |
396 | int type; |
762 | int type; |
397 | |
763 | |
398 | do |
764 | do |
… | |
… | |
417 | |
783 | |
418 | pthread_mutex_unlock (&reqlock); |
784 | pthread_mutex_unlock (&reqlock); |
419 | |
785 | |
420 | errno = 0; /* strictly unnecessary */ |
786 | errno = 0; /* strictly unnecessary */ |
421 | |
787 | |
422 | type = req->type; |
788 | if (!req->cancelled) |
423 | |
789 | switch (type = req->type) /* remember type for QUIT check */ |
424 | switch (type) |
|
|
425 | { |
790 | { |
426 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
791 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
427 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
792 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
428 | |
793 | |
429 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
794 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
795 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
430 | |
796 | |
431 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
797 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
432 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
798 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
433 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
799 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
434 | |
800 | |
435 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
801 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
436 | case REQ_CLOSE: req->result = close (req->fd); break; |
802 | case REQ_CLOSE: req->result = close (req->fd); break; |
437 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
803 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
438 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
804 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
805 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
806 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
439 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
807 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
440 | |
808 | |
441 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
809 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
442 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
810 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
811 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
443 | |
812 | |
|
|
813 | case REQ_SLEEP: |
|
|
814 | { |
|
|
815 | struct timeval tv; |
|
|
816 | |
|
|
817 | tv.tv_sec = req->fd; |
|
|
818 | tv.tv_usec = req->fd2; |
|
|
819 | |
|
|
820 | req->result = select (0, 0, 0, 0, &tv); |
|
|
821 | } |
|
|
822 | |
444 | case REQ_QUIT: |
823 | case REQ_QUIT: |
445 | break; |
824 | break; |
446 | |
825 | |
447 | default: |
826 | default: |
448 | req->result = ENOSYS; |
827 | req->result = ENOSYS; |
449 | break; |
828 | break; |
450 | } |
829 | } |
451 | |
830 | |
452 | req->errorno = errno; |
831 | req->errorno = errno; |
453 | |
832 | |
454 | pthread_mutex_lock (&reslock); |
833 | pthread_mutex_lock (&reslock); |
455 | |
834 | |
… | |
… | |
473 | while (type != REQ_QUIT); |
852 | while (type != REQ_QUIT); |
474 | |
853 | |
475 | return 0; |
854 | return 0; |
476 | } |
855 | } |
477 | |
856 | |
|
|
857 | /*****************************************************************************/ |
|
|
858 | |
|
|
859 | static void atfork_prepare (void) |
|
|
860 | { |
|
|
861 | pthread_mutex_lock (&reqlock); |
|
|
862 | pthread_mutex_lock (&reslock); |
|
|
863 | #if !HAVE_PREADWRITE |
|
|
864 | pthread_mutex_lock (&preadwritelock); |
|
|
865 | #endif |
|
|
866 | #if !HAVE_READDIR_R |
|
|
867 | pthread_mutex_lock (&readdirlock); |
|
|
868 | #endif |
|
|
869 | } |
|
|
870 | |
|
|
871 | static void atfork_parent (void) |
|
|
872 | { |
|
|
873 | #if !HAVE_READDIR_R |
|
|
874 | pthread_mutex_unlock (&readdirlock); |
|
|
875 | #endif |
|
|
876 | #if !HAVE_PREADWRITE |
|
|
877 | pthread_mutex_unlock (&preadwritelock); |
|
|
878 | #endif |
|
|
879 | pthread_mutex_unlock (&reslock); |
|
|
880 | pthread_mutex_unlock (&reqlock); |
|
|
881 | } |
|
|
882 | |
|
|
883 | static void atfork_child (void) |
|
|
884 | { |
|
|
885 | aio_req prv; |
|
|
886 | |
|
|
887 | started = 0; |
|
|
888 | |
|
|
889 | while (reqs) |
|
|
890 | { |
|
|
891 | prv = reqs; |
|
|
892 | reqs = prv->next; |
|
|
893 | req_free (prv); |
|
|
894 | } |
|
|
895 | |
|
|
896 | reqs = reqe = 0; |
|
|
897 | |
|
|
898 | while (ress) |
|
|
899 | { |
|
|
900 | prv = ress; |
|
|
901 | ress = prv->next; |
|
|
902 | req_free (prv); |
|
|
903 | } |
|
|
904 | |
|
|
905 | ress = rese = 0; |
|
|
906 | |
|
|
907 | close (respipe [0]); |
|
|
908 | close (respipe [1]); |
|
|
909 | create_pipe (); |
|
|
910 | |
|
|
911 | atfork_parent (); |
|
|
912 | } |
|
|
913 | |
478 | #define dREQ \ |
914 | #define dREQ \ |
479 | aio_req req; \ |
915 | aio_req req; \ |
480 | \ |
916 | \ |
481 | if (SvOK (callback) && !SvROK (callback)) \ |
917 | if (SvOK (callback) && !SvROK (callback)) \ |
482 | croak ("clalback must be undef or of reference type"); \ |
918 | croak ("callback must be undef or of reference type"); \ |
483 | \ |
919 | \ |
484 | Newz (0, req, 1, aio_cb); \ |
920 | Newz (0, req, 1, aio_cb); \ |
485 | if (!req) \ |
921 | if (!req) \ |
486 | croak ("out of memory during aio_req allocation"); \ |
922 | croak ("out of memory during aio_req allocation"); \ |
487 | \ |
923 | \ |
488 | req->callback = SvREFCNT_inc (callback); |
924 | req->callback = newSVsv (callback) |
|
|
925 | |
|
|
926 | #define REQ_SEND \ |
|
|
927 | req_send (req); \ |
|
|
928 | \ |
|
|
929 | if (GIMME_V != G_VOID) \ |
|
|
930 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
489 | |
931 | |
490 | MODULE = IO::AIO PACKAGE = IO::AIO |
932 | MODULE = IO::AIO PACKAGE = IO::AIO |
491 | |
933 | |
492 | PROTOTYPES: ENABLE |
934 | PROTOTYPES: ENABLE |
493 | |
935 | |
494 | BOOT: |
936 | BOOT: |
495 | { |
937 | { |
496 | if (pipe (respipe)) |
938 | HV *stash = gv_stashpv ("IO::AIO", 1); |
497 | croak ("unable to initialize result pipe"); |
939 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
940 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
941 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
498 | |
942 | |
499 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
943 | create_pipe (); |
500 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
501 | |
|
|
502 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
503 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
504 | |
|
|
505 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
944 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
506 | } |
945 | } |
507 | |
946 | |
508 | void |
947 | void |
509 | min_parallel(nthreads) |
948 | min_parallel (nthreads) |
510 | int nthreads |
949 | int nthreads |
511 | PROTOTYPE: $ |
950 | PROTOTYPE: $ |
512 | |
951 | |
513 | void |
952 | void |
514 | max_parallel(nthreads) |
953 | max_parallel (nthreads) |
515 | int nthreads |
954 | int nthreads |
516 | PROTOTYPE: $ |
955 | PROTOTYPE: $ |
517 | |
956 | |
518 | int |
957 | int |
519 | max_outstanding(nreqs) |
958 | max_outstanding (nreqs) |
520 | int nreqs |
959 | int nreqs |
521 | PROTOTYPE: $ |
960 | PROTOTYPE: $ |
522 | CODE: |
961 | CODE: |
523 | RETVAL = max_outstanding; |
962 | RETVAL = max_outstanding; |
524 | max_outstanding = nreqs; |
963 | max_outstanding = nreqs; |
525 | |
964 | |
526 | void |
965 | void |
527 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
966 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
528 | SV * pathname |
967 | SV * pathname |
529 | int flags |
968 | int flags |
530 | int mode |
969 | int mode |
531 | SV * callback |
970 | SV * callback |
532 | PROTOTYPE: $$$;$ |
971 | PROTOTYPE: $$$;$ |
533 | CODE: |
972 | PPCODE: |
534 | { |
973 | { |
535 | dREQ; |
974 | dREQ; |
536 | |
975 | |
537 | req->type = REQ_OPEN; |
976 | req->type = REQ_OPEN; |
538 | req->data = newSVsv (pathname); |
977 | req->data = newSVsv (pathname); |
539 | req->dataptr = SvPVbyte_nolen (req->data); |
978 | req->dataptr = SvPVbyte_nolen (req->data); |
540 | req->fd = flags; |
979 | req->fd = flags; |
541 | req->mode = mode; |
980 | req->mode = mode; |
542 | |
981 | |
543 | send_req (req); |
982 | REQ_SEND; |
544 | } |
983 | } |
545 | |
984 | |
546 | void |
985 | void |
547 | aio_close(fh,callback=&PL_sv_undef) |
986 | aio_close (fh,callback=&PL_sv_undef) |
548 | SV * fh |
987 | SV * fh |
549 | SV * callback |
988 | SV * callback |
550 | PROTOTYPE: $;$ |
989 | PROTOTYPE: $;$ |
551 | ALIAS: |
990 | ALIAS: |
552 | aio_close = REQ_CLOSE |
991 | aio_close = REQ_CLOSE |
553 | aio_fsync = REQ_FSYNC |
992 | aio_fsync = REQ_FSYNC |
554 | aio_fdatasync = REQ_FDATASYNC |
993 | aio_fdatasync = REQ_FDATASYNC |
555 | CODE: |
994 | PPCODE: |
556 | { |
995 | { |
557 | dREQ; |
996 | dREQ; |
558 | |
997 | |
559 | req->type = ix; |
998 | req->type = ix; |
560 | req->fh = newSVsv (fh); |
999 | req->fh = newSVsv (fh); |
561 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1000 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
562 | |
1001 | |
563 | send_req (req); |
1002 | REQ_SEND (req); |
564 | } |
1003 | } |
565 | |
1004 | |
566 | void |
1005 | void |
567 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1006 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
568 | SV * fh |
1007 | SV * fh |
569 | UV offset |
1008 | UV offset |
570 | IV length |
1009 | UV length |
571 | SV * data |
1010 | SV * data |
572 | IV dataoffset |
1011 | UV dataoffset |
573 | SV * callback |
1012 | SV * callback |
574 | ALIAS: |
1013 | ALIAS: |
575 | aio_read = REQ_READ |
1014 | aio_read = REQ_READ |
576 | aio_write = REQ_WRITE |
1015 | aio_write = REQ_WRITE |
577 | PROTOTYPE: $$$$$;$ |
1016 | PROTOTYPE: $$$$$;$ |
578 | CODE: |
1017 | PPCODE: |
579 | { |
1018 | { |
580 | aio_req req; |
1019 | aio_req req; |
581 | STRLEN svlen; |
1020 | STRLEN svlen; |
582 | char *svptr = SvPVbyte (data, svlen); |
1021 | char *svptr = SvPVbyte (data, svlen); |
583 | |
1022 | |
… | |
… | |
614 | : IoOFP (sv_2io (fh))); |
1053 | : IoOFP (sv_2io (fh))); |
615 | req->offset = offset; |
1054 | req->offset = offset; |
616 | req->length = length; |
1055 | req->length = length; |
617 | req->data = SvREFCNT_inc (data); |
1056 | req->data = SvREFCNT_inc (data); |
618 | req->dataptr = (char *)svptr + dataoffset; |
1057 | req->dataptr = (char *)svptr + dataoffset; |
619 | req->callback = SvREFCNT_inc (callback); |
|
|
620 | |
1058 | |
621 | send_req (req); |
1059 | if (!SvREADONLY (data)) |
|
|
1060 | { |
|
|
1061 | SvREADONLY_on (data); |
|
|
1062 | req->data2ptr = (void *)data; |
|
|
1063 | } |
|
|
1064 | |
|
|
1065 | REQ_SEND; |
622 | } |
1066 | } |
623 | } |
1067 | } |
624 | |
1068 | |
625 | void |
1069 | void |
|
|
1070 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1071 | SV * out_fh |
|
|
1072 | SV * in_fh |
|
|
1073 | UV in_offset |
|
|
1074 | UV length |
|
|
1075 | SV * callback |
|
|
1076 | PROTOTYPE: $$$$;$ |
|
|
1077 | PPCODE: |
|
|
1078 | { |
|
|
1079 | dREQ; |
|
|
1080 | |
|
|
1081 | req->type = REQ_SENDFILE; |
|
|
1082 | req->fh = newSVsv (out_fh); |
|
|
1083 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1084 | req->fh2 = newSVsv (in_fh); |
|
|
1085 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1086 | req->offset = in_offset; |
|
|
1087 | req->length = length; |
|
|
1088 | |
|
|
1089 | REQ_SEND; |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | void |
626 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1093 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
627 | SV * fh |
1094 | SV * fh |
628 | UV offset |
1095 | UV offset |
629 | IV length |
1096 | IV length |
630 | SV * callback |
1097 | SV * callback |
631 | PROTOTYPE: $$$;$ |
1098 | PROTOTYPE: $$$;$ |
632 | CODE: |
1099 | PPCODE: |
633 | { |
1100 | { |
634 | dREQ; |
1101 | dREQ; |
635 | |
1102 | |
636 | req->type = REQ_READAHEAD; |
1103 | req->type = REQ_READAHEAD; |
637 | req->fh = newSVsv (fh); |
1104 | req->fh = newSVsv (fh); |
638 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1105 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
639 | req->offset = offset; |
1106 | req->offset = offset; |
640 | req->length = length; |
1107 | req->length = length; |
641 | |
1108 | |
642 | send_req (req); |
1109 | REQ_SEND; |
643 | } |
1110 | } |
644 | |
1111 | |
645 | void |
1112 | void |
646 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1113 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
647 | SV * fh_or_path |
1114 | SV * fh_or_path |
648 | SV * callback |
1115 | SV * callback |
649 | ALIAS: |
1116 | ALIAS: |
650 | aio_stat = REQ_STAT |
1117 | aio_stat = REQ_STAT |
651 | aio_lstat = REQ_LSTAT |
1118 | aio_lstat = REQ_LSTAT |
652 | CODE: |
1119 | PPCODE: |
653 | { |
1120 | { |
654 | dREQ; |
1121 | dREQ; |
655 | |
1122 | |
656 | New (0, req->statdata, 1, Stat_t); |
1123 | New (0, req->statdata, 1, Stat_t); |
657 | if (!req->statdata) |
1124 | if (!req->statdata) |
|
|
1125 | { |
|
|
1126 | req_free (req); |
658 | croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); |
1127 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1128 | } |
659 | |
1129 | |
660 | if (SvPOK (fh_or_path)) |
1130 | if (SvPOK (fh_or_path)) |
661 | { |
1131 | { |
662 | req->type = ix; |
1132 | req->type = ix; |
663 | req->data = newSVsv (fh_or_path); |
1133 | req->data = newSVsv (fh_or_path); |
… | |
… | |
668 | req->type = REQ_FSTAT; |
1138 | req->type = REQ_FSTAT; |
669 | req->fh = newSVsv (fh_or_path); |
1139 | req->fh = newSVsv (fh_or_path); |
670 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1140 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
671 | } |
1141 | } |
672 | |
1142 | |
673 | send_req (req); |
1143 | REQ_SEND; |
674 | } |
1144 | } |
675 | |
1145 | |
676 | void |
1146 | void |
677 | aio_unlink(pathname,callback=&PL_sv_undef) |
1147 | aio_unlink (pathname,callback=&PL_sv_undef) |
678 | SV * pathname |
1148 | SV * pathname |
679 | SV * callback |
1149 | SV * callback |
680 | ALIAS: |
1150 | ALIAS: |
681 | aio_unlink = REQ_UNLINK |
1151 | aio_unlink = REQ_UNLINK |
682 | aio_rmdir = REQ_RMDIR |
1152 | aio_rmdir = REQ_RMDIR |
|
|
1153 | aio_readdir = REQ_READDIR |
683 | CODE: |
1154 | PPCODE: |
684 | { |
1155 | { |
685 | dREQ; |
1156 | dREQ; |
686 | |
1157 | |
687 | req->type = ix; |
1158 | req->type = ix; |
688 | req->data = newSVsv (pathname); |
1159 | req->data = newSVsv (pathname); |
689 | req->dataptr = SvPVbyte_nolen (req->data); |
1160 | req->dataptr = SvPVbyte_nolen (req->data); |
690 | |
1161 | |
691 | send_req (req); |
1162 | REQ_SEND; |
692 | } |
1163 | } |
693 | |
1164 | |
694 | void |
1165 | void |
695 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1166 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
696 | SV * oldpath |
1167 | SV * oldpath |
697 | SV * newpath |
1168 | SV * newpath |
698 | SV * callback |
1169 | SV * callback |
|
|
1170 | ALIAS: |
|
|
1171 | aio_link = REQ_LINK |
|
|
1172 | aio_symlink = REQ_SYMLINK |
|
|
1173 | aio_rename = REQ_RENAME |
699 | CODE: |
1174 | PPCODE: |
700 | { |
1175 | { |
701 | dREQ; |
1176 | dREQ; |
702 | |
1177 | |
703 | req->type = REQ_SYMLINK; |
1178 | req->type = ix; |
704 | req->fh = newSVsv (oldpath); |
1179 | req->fh = newSVsv (oldpath); |
705 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1180 | req->data2ptr = SvPVbyte_nolen (req->fh); |
706 | req->data = newSVsv (newpath); |
1181 | req->data = newSVsv (newpath); |
707 | req->dataptr = SvPVbyte_nolen (req->data); |
1182 | req->dataptr = SvPVbyte_nolen (req->data); |
708 | |
1183 | |
709 | send_req (req); |
1184 | REQ_SEND; |
710 | } |
1185 | } |
711 | |
1186 | |
712 | void |
1187 | void |
|
|
1188 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1189 | double delay |
|
|
1190 | SV * callback |
|
|
1191 | PPCODE: |
|
|
1192 | { |
|
|
1193 | dREQ; |
|
|
1194 | |
|
|
1195 | req->type = REQ_SLEEP; |
|
|
1196 | req->fd = delay < 0. ? 0 : delay; |
|
|
1197 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1198 | |
|
|
1199 | REQ_SEND; |
|
|
1200 | } |
|
|
1201 | |
|
|
1202 | void |
|
|
1203 | aio_group (callback=&PL_sv_undef) |
|
|
1204 | SV * callback |
|
|
1205 | PROTOTYPE: ;$ |
|
|
1206 | PPCODE: |
|
|
1207 | { |
|
|
1208 | dREQ; |
|
|
1209 | req->type = REQ_GROUP; |
|
|
1210 | req_send (req); |
|
|
1211 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1212 | } |
|
|
1213 | |
|
|
1214 | void |
713 | flush() |
1215 | flush () |
714 | PROTOTYPE: |
1216 | PROTOTYPE: |
715 | CODE: |
1217 | CODE: |
716 | while (nreqs) |
1218 | while (nreqs) |
717 | { |
1219 | { |
718 | poll_wait (); |
1220 | poll_wait (); |
… | |
… | |
758 | CODE: |
1260 | CODE: |
759 | RETVAL = nreqs; |
1261 | RETVAL = nreqs; |
760 | OUTPUT: |
1262 | OUTPUT: |
761 | RETVAL |
1263 | RETVAL |
762 | |
1264 | |
|
|
1265 | PROTOTYPES: DISABLE |
|
|
1266 | |
|
|
1267 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1268 | |
|
|
1269 | void |
|
|
1270 | cancel (aio_req_ornot req) |
|
|
1271 | PROTOTYPE: |
|
|
1272 | CODE: |
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1273 | req_cancel (req); |
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1274 | |
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1275 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
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1276 | |
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1277 | void |
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1278 | add (aio_req grp, ...) |
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1279 | PPCODE: |
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|
1280 | { |
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1281 | int i; |
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1282 | |
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1283 | if (grp->fd == 2) |
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1284 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
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1285 | |
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1286 | for (i = 1; i < items; ++i ) |
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|
1287 | { |
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1288 | if (GIMME_V != G_VOID) |
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1289 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
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1290 | |
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|
1291 | aio_req req = SvAIO_REQ (ST (i)); |
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1292 | |
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|
1293 | if (req) |
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|
1294 | { |
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|
1295 | ++grp->length; |
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|
1296 | req->grp = grp; |
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1297 | |
|
|
1298 | req->grp_prev = 0; |
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|
1299 | req->grp_next = grp->grp_first; |
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1300 | |
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1301 | if (grp->grp_first) |
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1302 | grp->grp_first->grp_prev = req; |
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1303 | |
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|
1304 | grp->grp_first = req; |
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|
1305 | } |
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|
1306 | } |
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|
1307 | } |
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1308 | |
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|
1309 | void |
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|
1310 | lock (aio_req grp) |
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|
1311 | CODE: |
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|
1312 | ++grp->length; |
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|
1313 | |
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|
1314 | void |
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1315 | unlock (aio_req grp) |
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|
1316 | CODE: |
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1317 | aio_grp_dec (grp); |
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|
1318 | |
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|
1319 | void |
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1320 | feeder_limit (aio_req grp, int limit) |
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|
1321 | CODE: |
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|
1322 | grp->fd2 = limit; |
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|
1323 | aio_grp_feed (grp); |
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|
1324 | |
|
|
1325 | void |
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|
1326 | set_feeder (aio_req grp, SV *callback=&PL_sv_undef) |
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|
1327 | CODE: |
|
|
1328 | { |
|
|
1329 | SvREFCNT_dec (grp->fh2); |
|
|
1330 | grp->fh2 = newSVsv (callback); |
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|
1331 | |
|
|
1332 | if (grp->fd2 <= 0) |
|
|
1333 | grp->fd2 = 2; |
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|
1334 | |
|
|
1335 | aio_grp_feed (grp); |
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|
1336 | } |
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|
1337 | |