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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 | |
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8 | #include "autoconf/config.h" |
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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> |
5 | #include <sys/types.h> |
16 | #include <sys/types.h> |
6 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
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18 | #include <limits.h> |
7 | #include <unistd.h> |
19 | #include <unistd.h> |
8 | #include <fcntl.h> |
20 | #include <fcntl.h> |
9 | #include <signal.h> |
21 | #include <signal.h> |
10 | #include <sched.h> |
22 | #include <sched.h> |
11 | #include <endian.h> |
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12 | |
23 | |
13 | #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 |
14 | #include <sys/syscall.h> |
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 |
15 | |
38 | |
16 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
39 | /* used for struct dirent, AIX doesn't provide it */ |
17 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
40 | #ifndef NAME_MAX |
18 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
41 | # define NAME_MAX 4096 |
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42 | #endif |
19 | |
43 | |
20 | #if __ia64 |
44 | #if __ia64 |
21 | # define STACKSIZE 65536 |
45 | # define STACKSIZE 65536 |
22 | #else |
46 | #else |
23 | # define STACKSIZE 4096 |
47 | # define STACKSIZE 8192 |
24 | #endif |
48 | #endif |
25 | |
49 | |
26 | enum { |
50 | enum { |
27 | REQ_QUIT, |
51 | REQ_QUIT, |
28 | REQ_OPEN, REQ_CLOSE, |
52 | REQ_OPEN, REQ_CLOSE, |
29 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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54 | REQ_SENDFILE, |
30 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
31 | REQ_FSYNC, REQ_FDATASYNC, |
56 | REQ_FSYNC, REQ_FDATASYNC, |
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57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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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, |
32 | }; |
62 | }; |
33 | |
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 | |
34 | typedef struct aio_cb { |
67 | typedef struct aio_cb |
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68 | { |
35 | struct aio_cb *volatile next; |
69 | struct aio_cb *volatile next; |
36 | |
70 | |
37 | int type; |
71 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
38 | |
72 | |
39 | 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; |
40 | off_t offset; |
79 | off_t offset; |
41 | size_t length; |
80 | size_t length; |
42 | 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; |
43 | mode_t mode; /* open */ |
87 | mode_t mode; /* open */ |
44 | int errorno; |
88 | unsigned char cancelled; |
45 | SV *data, *callback; |
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46 | void *dataptr; |
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47 | STRLEN dataoffset; |
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48 | |
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49 | Stat_t *statdata; |
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50 | } aio_cb; |
89 | } aio_cb; |
51 | |
90 | |
52 | typedef aio_cb *aio_req; |
91 | typedef aio_cb *aio_req; |
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92 | typedef aio_cb *aio_req_ornot; |
53 | |
93 | |
54 | static int started; |
94 | static int started, wanted; |
55 | static int nreqs; |
95 | static volatile int nreqs; |
56 | static int max_outstanding = 1<<30; |
96 | static int max_outstanding = 1<<30; |
57 | static int respipe [2]; |
97 | static int respipe [2]; |
58 | |
98 | |
59 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
99 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
60 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
100 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
61 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
101 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
62 | |
102 | |
63 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
103 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
64 | static volatile aio_req ress, rese; /* queue start, queue end */ |
104 | static volatile aio_req ress, rese; /* queue start, queue end */ |
65 | |
105 | |
66 | static void |
106 | static void req_invoke (aio_req req); |
67 | 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) |
68 | { |
111 | { |
69 | if (!nreqs) |
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 () |
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178 | { |
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179 | if (nreqs && !ress) |
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180 | { |
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181 | fd_set rfd; |
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182 | FD_ZERO(&rfd); |
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183 | FD_SET(respipe [0], &rfd); |
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184 | |
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185 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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186 | } |
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187 | } |
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188 | |
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189 | static void req_invoke (aio_req req) |
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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)) |
70 | return; |
195 | return; |
71 | |
196 | |
72 | fd_set rfd; |
197 | errno = req->errorno; |
73 | FD_ZERO(&rfd); |
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74 | FD_SET(respipe [0], &rfd); |
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75 | |
198 | |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
199 | ENTER; |
77 | } |
200 | SAVETMPS; |
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201 | PUSHMARK (SP); |
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202 | EXTEND (SP, 1); |
78 | |
203 | |
79 | static int |
204 | switch (req->type) |
80 | poll_cb () |
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 | |
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265 | default: |
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266 | PUSHs (sv_2mortal (newSViv (req->result))); |
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267 | break; |
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268 | } |
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269 | |
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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 | FREETMPS; |
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276 | LEAVE; |
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277 | |
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278 | errno = errorno; |
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279 | |
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280 | if (SvTRUE (ERRSV)) |
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281 | { |
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282 | req_free (req); |
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283 | croak (0); |
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284 | } |
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285 | } |
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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 | |
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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; |
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296 | |
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297 | if (grp->grp_first == req) |
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298 | grp->grp_first = req->grp_next; |
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299 | |
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300 | aio_grp_dec (grp); |
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301 | } |
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302 | |
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303 | if (req->self) |
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304 | { |
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305 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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306 | SvREFCNT_dec (req->self); |
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307 | } |
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308 | |
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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); |
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314 | |
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315 | if (req->type == REQ_READDIR && req->result >= 0) |
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316 | free (req->data2ptr); |
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317 | |
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318 | Safefree (req); |
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319 | } |
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320 | |
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321 | static void req_cancel (aio_req req) |
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322 | { |
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323 | req->cancelled = 1; |
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324 | |
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325 | if (req->type == REQ_GROUP) |
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326 | { |
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327 | aio_req sub; |
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328 | |
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329 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
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330 | req_cancel (sub); |
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331 | } |
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332 | } |
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333 | |
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334 | static int poll_cb () |
81 | { |
335 | { |
82 | dSP; |
336 | dSP; |
83 | int count = 0; |
337 | int count = 0; |
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338 | int do_croak = 0; |
84 | aio_req req; |
339 | aio_req req; |
85 | |
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86 | { |
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87 | /* read and signals sent by the worker threads */ |
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88 | char buf [32]; |
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89 | while (read (respipe [0], buf, 32) > 0) |
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90 | ; |
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91 | } |
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92 | |
340 | |
93 | for (;;) |
341 | for (;;) |
94 | { |
342 | { |
95 | pthread_mutex_lock (&reslock); |
343 | pthread_mutex_lock (&reslock); |
96 | |
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97 | req = ress; |
344 | req = ress; |
98 | |
345 | |
99 | if (ress) |
346 | if (req) |
100 | { |
347 | { |
101 | ress = ress->next; |
348 | ress = req->next; |
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349 | |
102 | if (!ress) rese = 0; |
350 | if (!ress) |
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351 | { |
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352 | /* read any signals sent by the worker threads */ |
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353 | char buf [32]; |
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354 | while (read (respipe [0], buf, 32) == 32) |
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355 | ; |
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356 | |
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357 | rese = 0; |
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358 | } |
103 | } |
359 | } |
104 | |
360 | |
105 | pthread_mutex_unlock (&reslock); |
361 | pthread_mutex_unlock (&reslock); |
106 | |
362 | |
107 | if (!req) |
363 | if (!req) |
108 | break; |
364 | break; |
109 | |
365 | |
110 | nreqs--; |
366 | --nreqs; |
111 | |
367 | |
112 | if (req->type == REQ_QUIT) |
368 | if (req->type == REQ_QUIT) |
113 | started--; |
369 | started--; |
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370 | else if (req->type == REQ_GROUP && req->length) |
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371 | { |
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372 | req->fd = 1; /* mark request as delayed */ |
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373 | continue; |
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374 | } |
114 | else |
375 | else |
115 | { |
376 | { |
116 | int errorno = errno; |
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117 | errno = req->errorno; |
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118 | |
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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); |
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122 | |
379 | |
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380 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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381 | SvREADONLY_off (req->data); |
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382 | |
123 | if (req->data) |
383 | if (req->statdata) |
124 | SvREFCNT_dec (req->data); |
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125 | |
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126 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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127 | { |
384 | { |
128 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
385 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
129 | PL_laststatval = req->result; |
386 | PL_laststatval = req->result; |
130 | PL_statcache = *(req->statdata); |
387 | PL_statcache = *(req->statdata); |
131 | |
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132 | Safefree (req->statdata); |
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133 | } |
388 | } |
134 | |
389 | |
135 | PUSHMARK (SP); |
390 | req_invoke (req); |
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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137 | |
391 | |
138 | if (req->type == REQ_OPEN) |
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139 | { |
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140 | /* convert fd to fh */ |
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141 | SV *fh; |
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142 | |
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143 | PUTBACK; |
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144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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145 | SPAGAIN; |
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146 | |
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147 | fh = POPs; |
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148 | |
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149 | PUSHMARK (SP); |
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150 | XPUSHs (fh); |
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151 | } |
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152 | |
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153 | PUTBACK; |
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154 | call_sv (req->callback, G_VOID | G_EVAL); |
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155 | SPAGAIN; |
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156 | |
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157 | if (req->callback) |
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158 | SvREFCNT_dec (req->callback); |
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159 | |
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160 | errno = errorno; |
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161 | count++; |
392 | count++; |
162 | } |
393 | } |
163 | |
394 | |
164 | Safefree (req); |
395 | req_free (req); |
165 | } |
396 | } |
166 | |
397 | |
167 | return count; |
398 | return count; |
168 | } |
399 | } |
169 | |
400 | |
170 | static void *aio_proc(void *arg); |
401 | static void *aio_proc(void *arg); |
171 | |
402 | |
172 | static void |
|
|
173 | start_thread (void) |
403 | static void start_thread (void) |
174 | { |
404 | { |
175 | sigset_t fullsigset, oldsigset; |
405 | sigset_t fullsigset, oldsigset; |
176 | pthread_t tid; |
406 | pthread_t tid; |
177 | pthread_attr_t attr; |
407 | pthread_attr_t attr; |
178 | |
408 | |
… | |
… | |
187 | started++; |
417 | started++; |
188 | |
418 | |
189 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
419 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
190 | } |
420 | } |
191 | |
421 | |
192 | static void |
422 | static void req_send (aio_req req) |
193 | send_req (aio_req req) |
|
|
194 | { |
423 | { |
|
|
424 | while (started < wanted && nreqs >= started) |
|
|
425 | start_thread (); |
|
|
426 | |
195 | nreqs++; |
427 | ++nreqs; |
196 | |
428 | |
197 | pthread_mutex_lock (&reqlock); |
429 | pthread_mutex_lock (&reqlock); |
198 | |
430 | |
199 | req->next = 0; |
431 | req->next = 0; |
200 | |
432 | |
… | |
… | |
207 | reqe = reqs = req; |
439 | reqe = reqs = req; |
208 | |
440 | |
209 | pthread_cond_signal (&reqwait); |
441 | pthread_cond_signal (&reqwait); |
210 | pthread_mutex_unlock (&reqlock); |
442 | pthread_mutex_unlock (&reqlock); |
211 | |
443 | |
212 | 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) |
213 | { |
485 | { |
214 | poll_wait (); |
486 | poll_wait (); |
215 | poll_cb (); |
487 | poll_cb (); |
216 | } |
488 | } |
217 | } |
489 | } |
218 | |
490 | |
219 | static void |
491 | static void create_pipe () |
220 | end_thread (void) |
|
|
221 | { |
492 | { |
222 | aio_req req; |
493 | if (pipe (respipe)) |
223 | New (0, req, 1, aio_cb); |
494 | croak ("unable to initialize result pipe"); |
224 | req->type = REQ_QUIT; |
|
|
225 | |
495 | |
226 | send_req (req); |
496 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
227 | } |
497 | croak ("cannot set result pipe to nonblocking mode"); |
228 | |
498 | |
229 | static void |
499 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
230 | read_write (int dowrite, int fd, off_t offset, size_t length, |
500 | croak ("cannot set result pipe to nonblocking mode"); |
231 | SV *data, STRLEN dataoffset, SV *callback) |
501 | } |
232 | { |
|
|
233 | aio_req req; |
|
|
234 | STRLEN svlen; |
|
|
235 | char *svptr = SvPV (data, svlen); |
|
|
236 | |
502 | |
237 | SvUPGRADE (data, SVt_PV); |
503 | /*****************************************************************************/ |
238 | SvPOK_on (data); |
504 | /* work around various missing functions */ |
239 | |
505 | |
240 | if (dataoffset < 0) |
506 | #if !HAVE_PREADWRITE |
|
|
507 | # define pread aio_pread |
|
|
508 | # define pwrite aio_pwrite |
|
|
509 | |
|
|
510 | /* |
|
|
511 | * make our pread/pwrite safe against themselves, but not against |
|
|
512 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
513 | * but that's your problem, not mine. |
|
|
514 | */ |
|
|
515 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
516 | |
|
|
517 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
518 | { |
|
|
519 | ssize_t res; |
|
|
520 | off_t ooffset; |
|
|
521 | |
|
|
522 | pthread_mutex_lock (&preadwritelock); |
|
|
523 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
524 | lseek (fd, offset, SEEK_SET); |
|
|
525 | res = read (fd, buf, count); |
|
|
526 | lseek (fd, ooffset, SEEK_SET); |
|
|
527 | pthread_mutex_unlock (&preadwritelock); |
|
|
528 | |
|
|
529 | return res; |
|
|
530 | } |
|
|
531 | |
|
|
532 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
533 | { |
|
|
534 | ssize_t res; |
|
|
535 | off_t ooffset; |
|
|
536 | |
|
|
537 | pthread_mutex_lock (&preadwritelock); |
|
|
538 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
539 | lseek (fd, offset, SEEK_SET); |
|
|
540 | res = write (fd, buf, count); |
|
|
541 | lseek (fd, offset, SEEK_SET); |
|
|
542 | pthread_mutex_unlock (&preadwritelock); |
|
|
543 | |
|
|
544 | return res; |
|
|
545 | } |
|
|
546 | #endif |
|
|
547 | |
|
|
548 | #if !HAVE_FDATASYNC |
|
|
549 | # define fdatasync fsync |
|
|
550 | #endif |
|
|
551 | |
|
|
552 | #if !HAVE_READAHEAD |
|
|
553 | # define readahead aio_readahead |
|
|
554 | |
|
|
555 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
556 | { |
|
|
557 | char readahead_buf[4096]; |
|
|
558 | |
|
|
559 | while (count > 0) |
|
|
560 | { |
|
|
561 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
562 | |
|
|
563 | pread (fd, readahead_buf, len, offset); |
241 | dataoffset += svlen; |
564 | offset += len; |
242 | |
565 | count -= len; |
243 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
244 | croak ("data offset outside of string"); |
|
|
245 | |
|
|
246 | if (dowrite) |
|
|
247 | { |
566 | } |
248 | /* write: check length and adjust. */ |
567 | |
249 | if (length < 0 || length + dataoffset > svlen) |
568 | errno = 0; |
250 | length = svlen - dataoffset; |
569 | } |
|
|
570 | #endif |
|
|
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); |
251 | } |
591 | } |
252 | else |
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 | */ |
253 | { |
619 | { |
254 | /* read: grow scalar as necessary */ |
620 | off_t sbytes; |
255 | svptr = SvGROW (data, length + dataoffset); |
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 | ) |
256 | } |
660 | { |
|
|
661 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
662 | char buf[4096]; |
|
|
663 | res = 0; |
257 | |
664 | |
258 | if (length < 0) |
665 | while (count) |
259 | croak ("length must not be negative"); |
666 | { |
|
|
667 | ssize_t cnt; |
|
|
668 | |
|
|
669 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
260 | |
670 | |
261 | Newz (0, req, 1, aio_cb); |
671 | if (cnt <= 0) |
|
|
672 | { |
|
|
673 | if (cnt && !res) res = -1; |
|
|
674 | break; |
|
|
675 | } |
262 | |
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 | |
263 | if (!req) |
710 | if (!dirp) |
264 | croak ("out of memory during aio_req allocation"); |
711 | return -1; |
265 | |
712 | |
266 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
713 | names = malloc (memlen); |
267 | req->fd = fd; |
|
|
268 | req->offset = offset; |
|
|
269 | req->length = length; |
|
|
270 | req->data = SvREFCNT_inc (data); |
|
|
271 | req->dataptr = (char *)svptr + dataoffset; |
|
|
272 | req->callback = SvREFCNT_inc (callback); |
|
|
273 | |
714 | |
274 | send_req (req); |
715 | for (;;) |
275 | } |
716 | { |
|
|
717 | errno = 0, readdir_r (dirp, &u.d, &entp); |
276 | |
718 | |
277 | static void * |
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 | |
|
|
757 | /*****************************************************************************/ |
|
|
758 | |
278 | aio_proc (void *thr_arg) |
759 | static void *aio_proc (void *thr_arg) |
279 | { |
760 | { |
280 | aio_req req; |
761 | aio_req req; |
281 | int type; |
762 | int type; |
282 | |
763 | |
283 | do |
764 | do |
… | |
… | |
302 | |
783 | |
303 | pthread_mutex_unlock (&reqlock); |
784 | pthread_mutex_unlock (&reqlock); |
304 | |
785 | |
305 | errno = 0; /* strictly unnecessary */ |
786 | errno = 0; /* strictly unnecessary */ |
306 | |
787 | |
307 | type = req->type; |
788 | if (!req->cancelled) |
308 | |
789 | switch (type = req->type) /* remember type for QUIT check */ |
309 | switch (type) |
|
|
310 | { |
790 | { |
311 | case REQ_READ: req->result = pread64 (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; |
312 | case REQ_WRITE: req->result = pwrite64 (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; |
313 | #if SYS_readahead |
793 | |
314 | 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; |
315 | #else |
795 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
316 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
317 | #endif |
|
|
318 | |
796 | |
319 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
797 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
320 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
798 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
321 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
799 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
322 | |
800 | |
323 | 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; |
324 | case REQ_CLOSE: req->result = close (req->fd); break; |
802 | case REQ_CLOSE: req->result = close (req->fd); break; |
325 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
803 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
326 | |
|
|
327 | case REQ_FSYNC: req->result = fsync (req->fd); 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; |
|
|
807 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
808 | |
328 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
809 | case REQ_FDATASYNC: req->result = fdatasync (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; |
329 | |
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 | |
330 | case REQ_QUIT: |
823 | case REQ_QUIT: |
331 | break; |
824 | break; |
332 | |
825 | |
333 | default: |
826 | default: |
334 | req->result = ENOSYS; |
827 | req->result = ENOSYS; |
335 | break; |
828 | break; |
336 | } |
829 | } |
337 | |
830 | |
338 | req->errorno = errno; |
831 | req->errorno = errno; |
339 | |
832 | |
340 | pthread_mutex_lock (&reslock); |
833 | pthread_mutex_lock (&reslock); |
341 | |
834 | |
342 | req->next = 0; |
835 | req->next = 0; |
343 | |
836 | |
|
|
837 | printf ("queue rese %p\n", rese);//D |
344 | if (rese) |
838 | if (rese) |
345 | { |
839 | { |
346 | rese->next = req; |
840 | rese->next = req; |
347 | rese = req; |
841 | rese = req; |
348 | } |
842 | } |
… | |
… | |
359 | while (type != REQ_QUIT); |
853 | while (type != REQ_QUIT); |
360 | |
854 | |
361 | return 0; |
855 | return 0; |
362 | } |
856 | } |
363 | |
857 | |
|
|
858 | /*****************************************************************************/ |
|
|
859 | |
|
|
860 | static void atfork_prepare (void) |
|
|
861 | { |
|
|
862 | pthread_mutex_lock (&reqlock); |
|
|
863 | pthread_mutex_lock (&reslock); |
|
|
864 | #if !HAVE_PREADWRITE |
|
|
865 | pthread_mutex_lock (&preadwritelock); |
|
|
866 | #endif |
|
|
867 | #if !HAVE_READDIR_R |
|
|
868 | pthread_mutex_lock (&readdirlock); |
|
|
869 | #endif |
|
|
870 | } |
|
|
871 | |
|
|
872 | static void atfork_parent (void) |
|
|
873 | { |
|
|
874 | #if !HAVE_READDIR_R |
|
|
875 | pthread_mutex_unlock (&readdirlock); |
|
|
876 | #endif |
|
|
877 | #if !HAVE_PREADWRITE |
|
|
878 | pthread_mutex_unlock (&preadwritelock); |
|
|
879 | #endif |
|
|
880 | pthread_mutex_unlock (&reslock); |
|
|
881 | pthread_mutex_unlock (&reqlock); |
|
|
882 | } |
|
|
883 | |
|
|
884 | static void atfork_child (void) |
|
|
885 | { |
|
|
886 | aio_req prv; |
|
|
887 | |
|
|
888 | started = 0; |
|
|
889 | |
|
|
890 | while (reqs) |
|
|
891 | { |
|
|
892 | prv = reqs; |
|
|
893 | reqs = prv->next; |
|
|
894 | req_free (prv); |
|
|
895 | } |
|
|
896 | |
|
|
897 | reqs = reqe = 0; |
|
|
898 | |
|
|
899 | while (ress) |
|
|
900 | { |
|
|
901 | prv = ress; |
|
|
902 | ress = prv->next; |
|
|
903 | req_free (prv); |
|
|
904 | } |
|
|
905 | |
|
|
906 | ress = rese = 0; |
|
|
907 | |
|
|
908 | close (respipe [0]); |
|
|
909 | close (respipe [1]); |
|
|
910 | create_pipe (); |
|
|
911 | |
|
|
912 | atfork_parent (); |
|
|
913 | } |
|
|
914 | |
|
|
915 | #define dREQ \ |
|
|
916 | aio_req req; \ |
|
|
917 | \ |
|
|
918 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
919 | croak ("callback must be undef or of reference type"); \ |
|
|
920 | \ |
|
|
921 | Newz (0, req, 1, aio_cb); \ |
|
|
922 | if (!req) \ |
|
|
923 | croak ("out of memory during aio_req allocation"); \ |
|
|
924 | \ |
|
|
925 | req->callback = newSVsv (callback) |
|
|
926 | |
|
|
927 | #define REQ_SEND \ |
|
|
928 | req_send (req); \ |
|
|
929 | \ |
|
|
930 | if (GIMME_V != G_VOID) \ |
|
|
931 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
932 | |
364 | MODULE = IO::AIO PACKAGE = IO::AIO |
933 | MODULE = IO::AIO PACKAGE = IO::AIO |
365 | |
934 | |
|
|
935 | PROTOTYPES: ENABLE |
|
|
936 | |
366 | BOOT: |
937 | BOOT: |
367 | { |
938 | { |
368 | if (pipe (respipe)) |
939 | HV *stash = gv_stashpv ("IO::AIO", 1); |
369 | croak ("unable to initialize result pipe"); |
940 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
941 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
942 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
370 | |
943 | |
371 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
944 | create_pipe (); |
372 | croak ("cannot set result pipe to nonblocking mode"); |
945 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
373 | |
|
|
374 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
375 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
376 | } |
946 | } |
377 | |
947 | |
378 | void |
948 | void |
379 | min_parallel(nthreads) |
949 | min_parallel (nthreads) |
380 | int nthreads |
950 | int nthreads |
381 | PROTOTYPE: $ |
951 | PROTOTYPE: $ |
382 | CODE: |
|
|
383 | while (nthreads > started) |
|
|
384 | start_thread (); |
|
|
385 | |
952 | |
386 | void |
953 | void |
387 | max_parallel(nthreads) |
954 | max_parallel (nthreads) |
388 | int nthreads |
955 | int nthreads |
389 | PROTOTYPE: $ |
956 | PROTOTYPE: $ |
390 | CODE: |
|
|
391 | { |
|
|
392 | int cur = started; |
|
|
393 | while (cur > nthreads) |
|
|
394 | { |
|
|
395 | end_thread (); |
|
|
396 | cur--; |
|
|
397 | } |
|
|
398 | |
|
|
399 | while (started > nthreads) |
|
|
400 | { |
|
|
401 | poll_wait (); |
|
|
402 | poll_cb (); |
|
|
403 | } |
|
|
404 | } |
|
|
405 | |
957 | |
406 | int |
958 | int |
407 | max_outstanding(nreqs) |
959 | max_outstanding (nreqs) |
408 | int nreqs |
960 | int nreqs |
409 | PROTOTYPE: $ |
961 | PROTOTYPE: $ |
410 | CODE: |
962 | CODE: |
411 | RETVAL = max_outstanding; |
963 | RETVAL = max_outstanding; |
412 | max_outstanding = nreqs; |
964 | max_outstanding = nreqs; |
413 | |
965 | |
414 | void |
966 | void |
415 | aio_open(pathname,flags,mode,callback) |
967 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
416 | SV * pathname |
968 | SV * pathname |
417 | int flags |
969 | int flags |
418 | int mode |
970 | int mode |
419 | SV * callback |
971 | SV * callback |
420 | PROTOTYPE: $$$$ |
972 | PROTOTYPE: $$$;$ |
421 | CODE: |
973 | PPCODE: |
422 | { |
974 | { |
423 | aio_req req; |
975 | dREQ; |
424 | |
|
|
425 | Newz (0, req, 1, aio_cb); |
|
|
426 | |
|
|
427 | if (!req) |
|
|
428 | croak ("out of memory during aio_req allocation"); |
|
|
429 | |
976 | |
430 | req->type = REQ_OPEN; |
977 | req->type = REQ_OPEN; |
431 | req->data = newSVsv (pathname); |
978 | req->data = newSVsv (pathname); |
432 | req->dataptr = SvPV_nolen (req->data); |
979 | req->dataptr = SvPVbyte_nolen (req->data); |
433 | req->fd = flags; |
980 | req->fd = flags; |
434 | req->mode = mode; |
981 | req->mode = mode; |
435 | req->callback = SvREFCNT_inc (callback); |
|
|
436 | |
982 | |
437 | send_req (req); |
983 | REQ_SEND; |
438 | } |
984 | } |
439 | |
985 | |
440 | void |
986 | void |
441 | aio_close(fh,callback) |
987 | aio_close (fh,callback=&PL_sv_undef) |
442 | InputStream fh |
988 | SV * fh |
443 | SV * callback |
989 | SV * callback |
444 | PROTOTYPE: $$ |
990 | PROTOTYPE: $;$ |
445 | ALIAS: |
991 | ALIAS: |
446 | aio_close = REQ_CLOSE |
992 | aio_close = REQ_CLOSE |
447 | aio_fsync = REQ_FSYNC |
993 | aio_fsync = REQ_FSYNC |
448 | aio_fdatasync = REQ_FDATASYNC |
994 | aio_fdatasync = REQ_FDATASYNC |
449 | CODE: |
995 | PPCODE: |
|
|
996 | { |
|
|
997 | dREQ; |
|
|
998 | |
|
|
999 | req->type = ix; |
|
|
1000 | req->fh = newSVsv (fh); |
|
|
1001 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
1002 | |
|
|
1003 | REQ_SEND (req); |
|
|
1004 | } |
|
|
1005 | |
|
|
1006 | void |
|
|
1007 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
1008 | SV * fh |
|
|
1009 | UV offset |
|
|
1010 | UV length |
|
|
1011 | SV * data |
|
|
1012 | UV dataoffset |
|
|
1013 | SV * callback |
|
|
1014 | ALIAS: |
|
|
1015 | aio_read = REQ_READ |
|
|
1016 | aio_write = REQ_WRITE |
|
|
1017 | PROTOTYPE: $$$$$;$ |
|
|
1018 | PPCODE: |
450 | { |
1019 | { |
451 | aio_req req; |
1020 | aio_req req; |
|
|
1021 | STRLEN svlen; |
|
|
1022 | char *svptr = SvPVbyte (data, svlen); |
452 | |
1023 | |
453 | Newz (0, req, 1, aio_cb); |
1024 | SvUPGRADE (data, SVt_PV); |
|
|
1025 | SvPOK_on (data); |
454 | |
1026 | |
455 | if (!req) |
1027 | if (dataoffset < 0) |
456 | croak ("out of memory during aio_req allocation"); |
1028 | dataoffset += svlen; |
457 | |
1029 | |
458 | req->type = ix; |
1030 | if (dataoffset < 0 || dataoffset > svlen) |
459 | req->fd = PerlIO_fileno (fh); |
1031 | croak ("data offset outside of string"); |
460 | req->callback = SvREFCNT_inc (callback); |
|
|
461 | |
1032 | |
462 | send_req (req); |
1033 | if (ix == REQ_WRITE) |
463 | } |
1034 | { |
464 | |
1035 | /* write: check length and adjust. */ |
465 | void |
1036 | if (length < 0 || length + dataoffset > svlen) |
466 | aio_read(fh,offset,length,data,dataoffset,callback) |
1037 | length = svlen - dataoffset; |
467 | InputStream fh |
1038 | } |
468 | UV offset |
1039 | else |
469 | IV length |
1040 | { |
470 | SV * data |
1041 | /* read: grow scalar as necessary */ |
471 | IV dataoffset |
1042 | svptr = SvGROW (data, length + dataoffset); |
472 | SV * callback |
1043 | } |
473 | PROTOTYPE: $$$$$$ |
|
|
474 | CODE: |
|
|
475 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
476 | |
|
|
477 | void |
|
|
478 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
479 | OutputStream fh |
|
|
480 | UV offset |
|
|
481 | IV length |
|
|
482 | SV * data |
|
|
483 | IV dataoffset |
|
|
484 | SV * callback |
|
|
485 | PROTOTYPE: $$$$$$ |
|
|
486 | CODE: |
|
|
487 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
488 | |
|
|
489 | void |
|
|
490 | aio_readahead(fh,offset,length,callback) |
|
|
491 | InputStream fh |
|
|
492 | UV offset |
|
|
493 | IV length |
|
|
494 | SV * callback |
|
|
495 | PROTOTYPE: $$$$ |
|
|
496 | CODE: |
|
|
497 | { |
|
|
498 | aio_req req; |
|
|
499 | |
1044 | |
500 | if (length < 0) |
1045 | if (length < 0) |
501 | croak ("length must not be negative"); |
1046 | croak ("length must not be negative"); |
502 | |
1047 | |
503 | Newz (0, req, 1, aio_cb); |
1048 | { |
|
|
1049 | dREQ; |
504 | |
1050 | |
505 | if (!req) |
1051 | req->type = ix; |
506 | croak ("out of memory during aio_req allocation"); |
1052 | req->fh = newSVsv (fh); |
|
|
1053 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
1054 | : IoOFP (sv_2io (fh))); |
|
|
1055 | req->offset = offset; |
|
|
1056 | req->length = length; |
|
|
1057 | req->data = SvREFCNT_inc (data); |
|
|
1058 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1059 | |
|
|
1060 | if (!SvREADONLY (data)) |
|
|
1061 | { |
|
|
1062 | SvREADONLY_on (data); |
|
|
1063 | req->data2ptr = (void *)data; |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | REQ_SEND; |
|
|
1067 | } |
|
|
1068 | } |
|
|
1069 | |
|
|
1070 | void |
|
|
1071 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1072 | SV * out_fh |
|
|
1073 | SV * in_fh |
|
|
1074 | UV in_offset |
|
|
1075 | UV length |
|
|
1076 | SV * callback |
|
|
1077 | PROTOTYPE: $$$$;$ |
|
|
1078 | PPCODE: |
|
|
1079 | { |
|
|
1080 | dREQ; |
|
|
1081 | |
|
|
1082 | req->type = REQ_SENDFILE; |
|
|
1083 | req->fh = newSVsv (out_fh); |
|
|
1084 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1085 | req->fh2 = newSVsv (in_fh); |
|
|
1086 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1087 | req->offset = in_offset; |
|
|
1088 | req->length = length; |
|
|
1089 | |
|
|
1090 | REQ_SEND; |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | void |
|
|
1094 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
|
|
1095 | SV * fh |
|
|
1096 | UV offset |
|
|
1097 | IV length |
|
|
1098 | SV * callback |
|
|
1099 | PROTOTYPE: $$$;$ |
|
|
1100 | PPCODE: |
|
|
1101 | { |
|
|
1102 | dREQ; |
507 | |
1103 | |
508 | req->type = REQ_READAHEAD; |
1104 | req->type = REQ_READAHEAD; |
|
|
1105 | req->fh = newSVsv (fh); |
509 | req->fd = PerlIO_fileno (fh); |
1106 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
510 | req->offset = offset; |
1107 | req->offset = offset; |
511 | req->length = length; |
1108 | req->length = length; |
512 | req->callback = SvREFCNT_inc (callback); |
|
|
513 | |
1109 | |
514 | send_req (req); |
1110 | REQ_SEND; |
515 | } |
1111 | } |
516 | |
1112 | |
517 | void |
1113 | void |
518 | aio_stat(fh_or_path,callback) |
1114 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
519 | SV * fh_or_path |
1115 | SV * fh_or_path |
520 | SV * callback |
1116 | SV * callback |
521 | PROTOTYPE: $$ |
|
|
522 | ALIAS: |
1117 | ALIAS: |
|
|
1118 | aio_stat = REQ_STAT |
523 | aio_lstat = 1 |
1119 | aio_lstat = REQ_LSTAT |
524 | CODE: |
1120 | PPCODE: |
525 | { |
1121 | { |
526 | aio_req req; |
1122 | dREQ; |
527 | |
|
|
528 | Newz (0, req, 1, aio_cb); |
|
|
529 | |
|
|
530 | if (!req) |
|
|
531 | croak ("out of memory during aio_req allocation"); |
|
|
532 | |
1123 | |
533 | New (0, req->statdata, 1, Stat_t); |
1124 | New (0, req->statdata, 1, Stat_t); |
534 | |
|
|
535 | if (!req->statdata) |
1125 | if (!req->statdata) |
|
|
1126 | { |
|
|
1127 | req_free (req); |
536 | croak ("out of memory during aio_req->statdata allocation"); |
1128 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1129 | } |
537 | |
1130 | |
538 | if (SvPOK (fh_or_path)) |
1131 | if (SvPOK (fh_or_path)) |
539 | { |
1132 | { |
540 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
1133 | req->type = ix; |
541 | req->data = newSVsv (fh_or_path); |
1134 | req->data = newSVsv (fh_or_path); |
542 | req->dataptr = SvPV_nolen (req->data); |
1135 | req->dataptr = SvPVbyte_nolen (req->data); |
543 | } |
1136 | } |
544 | else |
1137 | else |
545 | { |
1138 | { |
546 | req->type = REQ_FSTAT; |
1139 | req->type = REQ_FSTAT; |
|
|
1140 | req->fh = newSVsv (fh_or_path); |
547 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1141 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
548 | } |
1142 | } |
549 | |
1143 | |
550 | req->callback = SvREFCNT_inc (callback); |
1144 | REQ_SEND; |
551 | |
|
|
552 | send_req (req); |
|
|
553 | } |
1145 | } |
554 | |
1146 | |
555 | void |
1147 | void |
556 | aio_unlink(pathname,callback) |
1148 | aio_unlink (pathname,callback=&PL_sv_undef) |
557 | SV * pathname |
1149 | SV * pathname |
558 | SV * callback |
1150 | SV * callback |
559 | PROTOTYPE: $$ |
1151 | ALIAS: |
|
|
1152 | aio_unlink = REQ_UNLINK |
|
|
1153 | aio_rmdir = REQ_RMDIR |
|
|
1154 | aio_readdir = REQ_READDIR |
560 | CODE: |
1155 | PPCODE: |
561 | { |
1156 | { |
562 | aio_req req; |
1157 | dREQ; |
563 | |
1158 | |
564 | Newz (0, req, 1, aio_cb); |
1159 | req->type = ix; |
|
|
1160 | req->data = newSVsv (pathname); |
|
|
1161 | req->dataptr = SvPVbyte_nolen (req->data); |
565 | |
1162 | |
566 | if (!req) |
1163 | REQ_SEND; |
567 | croak ("out of memory during aio_req allocation"); |
1164 | } |
|
|
1165 | |
|
|
1166 | void |
|
|
1167 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1168 | SV * oldpath |
|
|
1169 | SV * newpath |
|
|
1170 | SV * callback |
|
|
1171 | ALIAS: |
|
|
1172 | aio_link = REQ_LINK |
|
|
1173 | aio_symlink = REQ_SYMLINK |
|
|
1174 | aio_rename = REQ_RENAME |
|
|
1175 | PPCODE: |
|
|
1176 | { |
|
|
1177 | dREQ; |
568 | |
1178 | |
569 | req->type = REQ_UNLINK; |
1179 | req->type = ix; |
|
|
1180 | req->fh = newSVsv (oldpath); |
|
|
1181 | req->data2ptr = SvPVbyte_nolen (req->fh); |
570 | req->data = newSVsv (pathname); |
1182 | req->data = newSVsv (newpath); |
571 | req->dataptr = SvPV_nolen (req->data); |
1183 | req->dataptr = SvPVbyte_nolen (req->data); |
572 | req->callback = SvREFCNT_inc (callback); |
|
|
573 | |
1184 | |
574 | send_req (req); |
1185 | REQ_SEND; |
575 | } |
1186 | } |
576 | |
1187 | |
577 | void |
1188 | void |
|
|
1189 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1190 | double delay |
|
|
1191 | SV * callback |
|
|
1192 | PPCODE: |
|
|
1193 | { |
|
|
1194 | dREQ; |
|
|
1195 | |
|
|
1196 | req->type = REQ_SLEEP; |
|
|
1197 | req->fd = delay < 0. ? 0 : delay; |
|
|
1198 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1199 | |
|
|
1200 | REQ_SEND; |
|
|
1201 | } |
|
|
1202 | |
|
|
1203 | void |
|
|
1204 | aio_group (callback=&PL_sv_undef) |
|
|
1205 | SV * callback |
|
|
1206 | PROTOTYPE: ;$ |
|
|
1207 | PPCODE: |
|
|
1208 | { |
|
|
1209 | dREQ; |
|
|
1210 | req->type = REQ_GROUP; |
|
|
1211 | req_send (req); |
|
|
1212 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1213 | } |
|
|
1214 | |
|
|
1215 | void |
578 | flush() |
1216 | flush () |
579 | PROTOTYPE: |
1217 | PROTOTYPE: |
580 | CODE: |
1218 | CODE: |
581 | while (nreqs) |
1219 | while (nreqs) |
582 | { |
1220 | { |
583 | poll_wait (); |
1221 | poll_wait (); |
… | |
… | |
623 | CODE: |
1261 | CODE: |
624 | RETVAL = nreqs; |
1262 | RETVAL = nreqs; |
625 | OUTPUT: |
1263 | OUTPUT: |
626 | RETVAL |
1264 | RETVAL |
627 | |
1265 | |
|
|
1266 | PROTOTYPES: DISABLE |
|
|
1267 | |
|
|
1268 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1269 | |
|
|
1270 | void |
|
|
1271 | cancel (aio_req_ornot req) |
|
|
1272 | PROTOTYPE: |
|
|
1273 | CODE: |
|
|
1274 | req_cancel (req); |
|
|
1275 | |
|
|
1276 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1277 | |
|
|
1278 | void |
|
|
1279 | add (aio_req grp, ...) |
|
|
1280 | PPCODE: |
|
|
1281 | { |
|
|
1282 | int i; |
|
|
1283 | |
|
|
1284 | if (grp->fd == 2) |
|
|
1285 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1286 | |
|
|
1287 | for (i = 1; i < items; ++i ) |
|
|
1288 | { |
|
|
1289 | if (GIMME_V != G_VOID) |
|
|
1290 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1291 | |
|
|
1292 | aio_req req = SvAIO_REQ (ST (i)); |
|
|
1293 | |
|
|
1294 | if (req) |
|
|
1295 | { |
|
|
1296 | ++grp->length; |
|
|
1297 | req->grp = grp; |
|
|
1298 | |
|
|
1299 | req->grp_prev = 0; |
|
|
1300 | req->grp_next = grp->grp_first; |
|
|
1301 | |
|
|
1302 | if (grp->grp_first) |
|
|
1303 | grp->grp_first->grp_prev = req; |
|
|
1304 | |
|
|
1305 | grp->grp_first = req; |
|
|
1306 | } |
|
|
1307 | } |
|
|
1308 | } |
|
|
1309 | |
|
|
1310 | void |
|
|
1311 | result (aio_req grp, ...) |
|
|
1312 | CODE: |
|
|
1313 | { |
|
|
1314 | int i; |
|
|
1315 | AV *av = newAV (); |
|
|
1316 | |
|
|
1317 | for (i = 1; i < items; ++i ) |
|
|
1318 | av_push (av, newSVsv (ST (i))); |
|
|
1319 | |
|
|
1320 | SvREFCNT_dec (grp->data); |
|
|
1321 | grp->data = (SV *)av; |
|
|
1322 | } |
|
|
1323 | |
|
|
1324 | void |
|
|
1325 | lock (aio_req grp) |
|
|
1326 | CODE: |
|
|
1327 | ++grp->length; |
|
|
1328 | |
|
|
1329 | void |
|
|
1330 | unlock (aio_req grp) |
|
|
1331 | CODE: |
|
|
1332 | aio_grp_dec (grp); |
|
|
1333 | |
|
|
1334 | void |
|
|
1335 | feeder_limit (aio_req grp, int limit) |
|
|
1336 | CODE: |
|
|
1337 | grp->fd2 = limit; |
|
|
1338 | aio_grp_feed (grp); |
|
|
1339 | |
|
|
1340 | void |
|
|
1341 | set_feeder (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1342 | CODE: |
|
|
1343 | { |
|
|
1344 | SvREFCNT_dec (grp->fh2); |
|
|
1345 | grp->fh2 = newSVsv (callback); |
|
|
1346 | |
|
|
1347 | if (grp->fd2 <= 0) |
|
|
1348 | grp->fd2 = 2; |
|
|
1349 | |
|
|
1350 | aio_grp_feed (grp); |
|
|
1351 | } |
|
|
1352 | |