… | |
… | |
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_GROUP, REQ_NOP, |
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61 | REQ_SLEEP, |
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 pri; |
51 | SV *data, *callback, *fh; |
89 | unsigned char flags; |
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; |
90 | } aio_cb; |
57 | |
91 | |
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92 | enum { |
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93 | FLAG_CANCELLED = 0x01, |
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94 | }; |
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95 | |
58 | typedef aio_cb *aio_req; |
96 | typedef aio_cb *aio_req; |
|
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97 | typedef aio_cb *aio_req_ornot; |
59 | |
98 | |
60 | static int started; |
99 | static int started, wanted; |
61 | static volatile int nreqs; |
100 | static volatile int nreqs; |
62 | static int max_outstanding = 1<<30; |
101 | static int max_outstanding = 1<<30; |
63 | static int respipe [2]; |
102 | static int respipe [2]; |
64 | |
103 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
104 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
105 | 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; |
106 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
69 | |
107 | |
70 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
108 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
71 | static volatile aio_req ress, rese; /* queue start, queue end */ |
109 | static volatile aio_req ress, rese; /* queue start, queue end */ |
72 | |
110 | |
73 | static void |
111 | static void req_invoke (aio_req req); |
74 | poll_wait () |
112 | static void req_free (aio_req req); |
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113 | |
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114 | /* must be called at most once */ |
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115 | static SV *req_sv (aio_req req, const char *klass) |
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116 | { |
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117 | if (!req->self) |
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118 | { |
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119 | req->self = (SV *)newHV (); |
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120 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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121 | } |
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122 | |
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123 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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124 | } |
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125 | |
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126 | static aio_req SvAIO_REQ (SV *sv) |
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127 | { |
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128 | MAGIC *mg; |
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129 | |
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130 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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131 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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132 | |
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133 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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134 | |
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135 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
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136 | } |
|
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137 | |
|
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138 | static void aio_grp_feed (aio_req grp) |
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139 | { |
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140 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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141 | { |
|
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142 | int old_len = grp->length; |
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143 | |
|
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144 | if (grp->fh2 && SvOK (grp->fh2)) |
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145 | { |
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146 | dSP; |
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147 | |
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148 | ENTER; |
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149 | SAVETMPS; |
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150 | PUSHMARK (SP); |
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151 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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152 | PUTBACK; |
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153 | call_sv (grp->fh2, G_VOID | G_EVAL); |
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154 | SPAGAIN; |
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155 | FREETMPS; |
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156 | LEAVE; |
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157 | } |
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158 | |
|
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159 | /* stop if no progress has been made */ |
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160 | if (old_len == grp->length) |
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161 | { |
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162 | SvREFCNT_dec (grp->fh2); |
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163 | grp->fh2 = 0; |
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164 | break; |
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165 | } |
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166 | } |
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167 | } |
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168 | |
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169 | static void aio_grp_dec (aio_req grp) |
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170 | { |
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171 | --grp->length; |
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172 | |
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173 | /* call feeder, if applicable */ |
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174 | aio_grp_feed (grp); |
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175 | |
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176 | /* finish, if done */ |
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177 | if (!grp->length && grp->fd) |
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178 | { |
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179 | req_invoke (grp); |
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180 | req_free (grp); |
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181 | } |
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182 | } |
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183 | |
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184 | static void poll_wait () |
75 | { |
185 | { |
76 | if (nreqs && !ress) |
186 | if (nreqs && !ress) |
77 | { |
187 | { |
78 | fd_set rfd; |
188 | fd_set rfd; |
79 | FD_ZERO(&rfd); |
189 | FD_ZERO(&rfd); |
… | |
… | |
81 | |
191 | |
82 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
192 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
83 | } |
193 | } |
84 | } |
194 | } |
85 | |
195 | |
86 | static int |
196 | static void req_invoke (aio_req req) |
87 | poll_cb () |
197 | { |
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198 | dSP; |
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199 | int errorno = errno; |
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200 | |
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201 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
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202 | return; |
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203 | |
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204 | errno = req->errorno; |
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205 | |
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206 | ENTER; |
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207 | SAVETMPS; |
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208 | PUSHMARK (SP); |
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209 | EXTEND (SP, 1); |
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210 | |
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211 | switch (req->type) |
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212 | { |
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213 | case REQ_READDIR: |
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214 | { |
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215 | SV *rv = &PL_sv_undef; |
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216 | |
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217 | if (req->result >= 0) |
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218 | { |
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219 | char *buf = req->data2ptr; |
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220 | AV *av = newAV (); |
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221 | |
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222 | while (req->result) |
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223 | { |
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224 | SV *sv = newSVpv (buf, 0); |
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225 | |
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226 | av_push (av, sv); |
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227 | buf += SvCUR (sv) + 1; |
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228 | req->result--; |
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229 | } |
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230 | |
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231 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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232 | } |
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233 | |
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234 | PUSHs (rv); |
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235 | } |
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236 | break; |
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237 | |
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238 | case REQ_OPEN: |
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239 | { |
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240 | /* convert fd to fh */ |
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241 | SV *fh; |
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242 | |
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243 | PUSHs (sv_2mortal (newSViv (req->result))); |
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244 | PUTBACK; |
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245 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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246 | SPAGAIN; |
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247 | |
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248 | fh = SvREFCNT_inc (POPs); |
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249 | |
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250 | PUSHMARK (SP); |
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251 | XPUSHs (sv_2mortal (fh)); |
|
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252 | } |
|
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253 | break; |
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254 | |
|
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255 | case REQ_GROUP: |
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256 | req->fd = 2; /* mark group as finished */ |
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257 | |
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258 | if (req->data) |
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259 | { |
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260 | int i; |
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261 | AV *av = (AV *)req->data; |
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262 | |
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263 | EXTEND (SP, AvFILL (av) + 1); |
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264 | for (i = 0; i <= AvFILL (av); ++i) |
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265 | PUSHs (*av_fetch (av, i, 0)); |
|
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266 | } |
|
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267 | break; |
|
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268 | |
|
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269 | case REQ_NOP: |
|
|
270 | case REQ_SLEEP: |
|
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271 | break; |
|
|
272 | |
|
|
273 | default: |
|
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274 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
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275 | break; |
|
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276 | } |
|
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277 | |
|
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278 | |
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279 | PUTBACK; |
|
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280 | call_sv (req->callback, G_VOID | G_EVAL); |
|
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281 | SPAGAIN; |
|
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282 | |
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283 | FREETMPS; |
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284 | LEAVE; |
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285 | |
|
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286 | errno = errorno; |
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287 | |
|
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288 | if (SvTRUE (ERRSV)) |
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289 | { |
|
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290 | req_free (req); |
|
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291 | croak (0); |
|
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292 | } |
|
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293 | } |
|
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294 | |
|
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295 | static void req_free (aio_req req) |
|
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296 | { |
|
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297 | if (req->grp) |
|
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298 | { |
|
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299 | aio_req grp = req->grp; |
|
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300 | |
|
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301 | /* unlink request */ |
|
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302 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
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303 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
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304 | |
|
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305 | if (grp->grp_first == req) |
|
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306 | grp->grp_first = req->grp_next; |
|
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307 | |
|
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308 | aio_grp_dec (grp); |
|
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309 | } |
|
|
310 | |
|
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311 | if (req->self) |
|
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312 | { |
|
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313 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
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314 | SvREFCNT_dec (req->self); |
|
|
315 | } |
|
|
316 | |
|
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317 | SvREFCNT_dec (req->data); |
|
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318 | SvREFCNT_dec (req->fh); |
|
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319 | SvREFCNT_dec (req->fh2); |
|
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320 | SvREFCNT_dec (req->callback); |
|
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321 | Safefree (req->statdata); |
|
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322 | |
|
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323 | if (req->type == REQ_READDIR && req->result >= 0) |
|
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324 | free (req->data2ptr); |
|
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325 | |
|
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326 | Safefree (req); |
|
|
327 | } |
|
|
328 | |
|
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329 | static void req_cancel (aio_req req) |
|
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330 | { |
|
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331 | req->flags |= FLAG_CANCELLED; |
|
|
332 | |
|
|
333 | if (req->type == REQ_GROUP) |
|
|
334 | { |
|
|
335 | aio_req sub; |
|
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336 | |
|
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337 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
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338 | req_cancel (sub); |
|
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339 | } |
|
|
340 | } |
|
|
341 | |
|
|
342 | static int poll_cb () |
88 | { |
343 | { |
89 | dSP; |
344 | dSP; |
90 | int count = 0; |
345 | int count = 0; |
|
|
346 | int do_croak = 0; |
91 | aio_req req, prv; |
347 | aio_req req; |
92 | |
348 | |
|
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349 | for (;;) |
|
|
350 | { |
93 | pthread_mutex_lock (&reslock); |
351 | pthread_mutex_lock (&reslock); |
|
|
352 | req = ress; |
94 | |
353 | |
95 | { |
354 | if (req) |
|
|
355 | { |
|
|
356 | ress = req->next; |
|
|
357 | |
|
|
358 | if (!ress) |
|
|
359 | { |
96 | /* read any signals sent by the worker threads */ |
360 | /* read any signals sent by the worker threads */ |
97 | char buf [32]; |
361 | char buf [32]; |
98 | while (read (respipe [0], buf, 32) == 32) |
362 | while (read (respipe [0], buf, 32) == 32) |
|
|
363 | ; |
|
|
364 | |
|
|
365 | rese = 0; |
|
|
366 | } |
99 | ; |
367 | } |
100 | } |
|
|
101 | |
368 | |
102 | req = ress; |
|
|
103 | ress = rese = 0; |
|
|
104 | |
|
|
105 | pthread_mutex_unlock (&reslock); |
369 | pthread_mutex_unlock (&reslock); |
106 | |
370 | |
107 | while (req) |
371 | if (!req) |
108 | { |
372 | break; |
|
|
373 | |
109 | nreqs--; |
374 | --nreqs; |
110 | |
375 | |
111 | if (req->type == REQ_QUIT) |
376 | if (req->type == REQ_QUIT) |
112 | started--; |
377 | started--; |
|
|
378 | else if (req->type == REQ_GROUP && req->length) |
|
|
379 | { |
|
|
380 | req->fd = 1; /* mark request as delayed */ |
|
|
381 | continue; |
|
|
382 | } |
113 | else |
383 | else |
114 | { |
384 | { |
115 | int errorno = errno; |
|
|
116 | errno = req->errorno; |
|
|
117 | |
|
|
118 | if (req->type == REQ_READ) |
385 | if (req->type == REQ_READ) |
119 | SvCUR_set (req->data, req->dataoffset |
386 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
120 | + req->result > 0 ? req->result : 0); |
|
|
121 | |
387 | |
|
|
388 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
389 | SvREADONLY_off (req->data); |
|
|
390 | |
122 | if (req->data) |
391 | if (req->statdata) |
123 | SvREFCNT_dec (req->data); |
|
|
124 | |
|
|
125 | if (req->fh) |
|
|
126 | SvREFCNT_dec (req->fh); |
|
|
127 | |
|
|
128 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
129 | { |
392 | { |
130 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
393 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
131 | PL_laststatval = req->result; |
394 | PL_laststatval = req->result; |
132 | PL_statcache = *(req->statdata); |
395 | PL_statcache = *(req->statdata); |
133 | |
|
|
134 | Safefree (req->statdata); |
|
|
135 | } |
396 | } |
136 | |
397 | |
137 | ENTER; |
398 | req_invoke (req); |
138 | PUSHMARK (SP); |
|
|
139 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
140 | |
399 | |
141 | if (req->type == REQ_OPEN) |
|
|
142 | { |
|
|
143 | /* convert fd to fh */ |
|
|
144 | SV *fh; |
|
|
145 | |
|
|
146 | PUTBACK; |
|
|
147 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
148 | SPAGAIN; |
|
|
149 | |
|
|
150 | fh = SvREFCNT_inc (POPs); |
|
|
151 | |
|
|
152 | PUSHMARK (SP); |
|
|
153 | XPUSHs (sv_2mortal (fh)); |
|
|
154 | } |
|
|
155 | |
|
|
156 | if (SvOK (req->callback)) |
|
|
157 | { |
|
|
158 | PUTBACK; |
|
|
159 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
160 | SPAGAIN; |
|
|
161 | } |
|
|
162 | |
|
|
163 | LEAVE; |
|
|
164 | |
|
|
165 | if (req->callback) |
|
|
166 | SvREFCNT_dec (req->callback); |
|
|
167 | |
|
|
168 | errno = errorno; |
|
|
169 | count++; |
400 | count++; |
170 | } |
401 | } |
171 | |
402 | |
172 | prv = req; |
|
|
173 | req = req->next; |
|
|
174 | Safefree (prv); |
403 | req_free (req); |
175 | |
|
|
176 | /* TODO: croak on errors? */ |
|
|
177 | } |
404 | } |
178 | |
405 | |
179 | return count; |
406 | return count; |
180 | } |
407 | } |
181 | |
408 | |
182 | static void *aio_proc(void *arg); |
409 | static void *aio_proc(void *arg); |
183 | |
410 | |
184 | static void |
|
|
185 | start_thread (void) |
411 | static void start_thread (void) |
186 | { |
412 | { |
187 | sigset_t fullsigset, oldsigset; |
413 | sigset_t fullsigset, oldsigset; |
188 | pthread_t tid; |
414 | pthread_t tid; |
189 | pthread_attr_t attr; |
415 | pthread_attr_t attr; |
190 | |
416 | |
… | |
… | |
199 | started++; |
425 | started++; |
200 | |
426 | |
201 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
427 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
202 | } |
428 | } |
203 | |
429 | |
204 | static void |
430 | static void req_send (aio_req req) |
205 | send_req (aio_req req) |
|
|
206 | { |
431 | { |
|
|
432 | while (started < wanted && nreqs >= started) |
|
|
433 | start_thread (); |
|
|
434 | |
207 | nreqs++; |
435 | ++nreqs; |
208 | |
436 | |
209 | pthread_mutex_lock (&reqlock); |
437 | pthread_mutex_lock (&reqlock); |
210 | |
438 | |
211 | req->next = 0; |
439 | req->next = 0; |
212 | |
440 | |
… | |
… | |
219 | reqe = reqs = req; |
447 | reqe = reqs = req; |
220 | |
448 | |
221 | pthread_cond_signal (&reqwait); |
449 | pthread_cond_signal (&reqwait); |
222 | pthread_mutex_unlock (&reqlock); |
450 | pthread_mutex_unlock (&reqlock); |
223 | |
451 | |
224 | while (nreqs > max_outstanding) |
452 | if (nreqs > max_outstanding) |
|
|
453 | for (;;) |
|
|
454 | { |
|
|
455 | poll_cb (); |
|
|
456 | |
|
|
457 | if (nreqs <= max_outstanding) |
|
|
458 | break; |
|
|
459 | |
|
|
460 | poll_wait (); |
|
|
461 | } |
|
|
462 | } |
|
|
463 | |
|
|
464 | static void end_thread (void) |
|
|
465 | { |
|
|
466 | aio_req req; |
|
|
467 | Newz (0, req, 1, aio_cb); |
|
|
468 | req->type = REQ_QUIT; |
|
|
469 | |
|
|
470 | req_send (req); |
|
|
471 | } |
|
|
472 | |
|
|
473 | static void min_parallel (int nthreads) |
|
|
474 | { |
|
|
475 | if (wanted < nthreads) |
|
|
476 | wanted = nthreads; |
|
|
477 | } |
|
|
478 | |
|
|
479 | static void max_parallel (int nthreads) |
|
|
480 | { |
|
|
481 | int cur = started; |
|
|
482 | |
|
|
483 | if (wanted > nthreads) |
|
|
484 | wanted = nthreads; |
|
|
485 | |
|
|
486 | while (cur > wanted) |
|
|
487 | { |
|
|
488 | end_thread (); |
|
|
489 | cur--; |
|
|
490 | } |
|
|
491 | |
|
|
492 | while (started > wanted) |
225 | { |
493 | { |
226 | poll_wait (); |
494 | poll_wait (); |
227 | poll_cb (); |
495 | poll_cb (); |
228 | } |
496 | } |
229 | } |
497 | } |
230 | |
498 | |
231 | static void |
499 | static void create_pipe () |
232 | end_thread (void) |
|
|
233 | { |
500 | { |
234 | aio_req req; |
501 | if (pipe (respipe)) |
235 | New (0, req, 1, aio_cb); |
502 | croak ("unable to initialize result pipe"); |
236 | req->type = REQ_QUIT; |
|
|
237 | |
503 | |
238 | send_req (req); |
504 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
239 | } |
505 | croak ("cannot set result pipe to nonblocking mode"); |
240 | |
506 | |
241 | |
507 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
242 | static void min_parallel (int nthreads) |
508 | croak ("cannot set result pipe to nonblocking mode"); |
243 | { |
|
|
244 | while (nthreads > started) |
|
|
245 | start_thread (); |
|
|
246 | } |
|
|
247 | |
|
|
248 | static void max_parallel (int nthreads) |
|
|
249 | { |
|
|
250 | int cur = started; |
|
|
251 | while (cur > nthreads) |
|
|
252 | { |
|
|
253 | end_thread (); |
|
|
254 | cur--; |
|
|
255 | } |
|
|
256 | |
|
|
257 | while (started > nthreads) |
|
|
258 | { |
|
|
259 | poll_wait (); |
|
|
260 | poll_cb (); |
|
|
261 | } |
|
|
262 | } |
|
|
263 | |
|
|
264 | static int fork_started; |
|
|
265 | |
|
|
266 | static void atfork_prepare (void) |
|
|
267 | { |
|
|
268 | pthread_mutex_lock (&frklock); |
|
|
269 | |
|
|
270 | fork_started = started; |
|
|
271 | |
|
|
272 | for (;;) { |
|
|
273 | while (nreqs) |
|
|
274 | { |
|
|
275 | poll_wait (); |
|
|
276 | poll_cb (); |
|
|
277 | } |
|
|
278 | |
|
|
279 | max_parallel (0); |
|
|
280 | |
|
|
281 | pthread_mutex_lock (&reqlock); |
|
|
282 | |
|
|
283 | if (!nreqs && !started) |
|
|
284 | break; |
|
|
285 | |
|
|
286 | pthread_mutex_unlock (&reqlock); |
|
|
287 | |
|
|
288 | min_parallel (fork_started); |
|
|
289 | } |
|
|
290 | |
|
|
291 | pthread_mutex_lock (&reslock); |
|
|
292 | |
|
|
293 | assert (!started); |
|
|
294 | assert (!nreqs); |
|
|
295 | assert (!reqs && !reqe); |
|
|
296 | assert (!ress && !rese); |
|
|
297 | } |
|
|
298 | |
|
|
299 | static void atfork_parent (void) |
|
|
300 | { |
|
|
301 | pthread_mutex_unlock (&reslock); |
|
|
302 | min_parallel (fork_started); |
|
|
303 | pthread_mutex_unlock (&reqlock); |
|
|
304 | pthread_mutex_unlock (&frklock); |
|
|
305 | } |
|
|
306 | |
|
|
307 | static void atfork_child (void) |
|
|
308 | { |
|
|
309 | reqs = reqe = 0; |
|
|
310 | |
|
|
311 | atfork_parent (); |
|
|
312 | } |
509 | } |
313 | |
510 | |
314 | /*****************************************************************************/ |
511 | /*****************************************************************************/ |
315 | /* work around various missing functions */ |
512 | /* work around various missing functions */ |
316 | |
513 | |
… | |
… | |
321 | /* |
518 | /* |
322 | * make our pread/pwrite safe against themselves, but not against |
519 | * make our pread/pwrite safe against themselves, but not against |
323 | * normal read/write by using a mutex. slows down execution a lot, |
520 | * normal read/write by using a mutex. slows down execution a lot, |
324 | * but that's your problem, not mine. |
521 | * but that's your problem, not mine. |
325 | */ |
522 | */ |
326 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
523 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
327 | |
524 | |
328 | static ssize_t |
525 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
329 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
330 | { |
526 | { |
331 | ssize_t res; |
527 | ssize_t res; |
332 | off_t ooffset; |
528 | off_t ooffset; |
333 | |
529 | |
334 | pthread_mutex_lock (&iolock); |
530 | pthread_mutex_lock (&preadwritelock); |
335 | ooffset = lseek (fd, 0, SEEK_CUR); |
531 | ooffset = lseek (fd, 0, SEEK_CUR); |
336 | lseek (fd, offset, SEEK_SET); |
532 | lseek (fd, offset, SEEK_SET); |
337 | res = read (fd, buf, count); |
533 | res = read (fd, buf, count); |
338 | lseek (fd, ooffset, SEEK_SET); |
534 | lseek (fd, ooffset, SEEK_SET); |
339 | pthread_mutex_unlock (&iolock); |
535 | pthread_mutex_unlock (&preadwritelock); |
340 | |
536 | |
341 | return res; |
537 | return res; |
342 | } |
538 | } |
343 | |
539 | |
344 | static ssize_t |
|
|
345 | pwrite (int fd, void *buf, size_t count, off_t offset) |
540 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
346 | { |
541 | { |
347 | ssize_t res; |
542 | ssize_t res; |
348 | off_t ooffset; |
543 | off_t ooffset; |
349 | |
544 | |
350 | pthread_mutex_lock (&iolock); |
545 | pthread_mutex_lock (&preadwritelock); |
351 | ooffset = lseek (fd, 0, SEEK_CUR); |
546 | ooffset = lseek (fd, 0, SEEK_CUR); |
352 | lseek (fd, offset, SEEK_SET); |
547 | lseek (fd, offset, SEEK_SET); |
353 | res = write (fd, buf, count); |
548 | res = write (fd, buf, count); |
354 | lseek (fd, offset, SEEK_SET); |
549 | lseek (fd, offset, SEEK_SET); |
355 | pthread_mutex_unlock (&iolock); |
550 | pthread_mutex_unlock (&preadwritelock); |
356 | |
551 | |
357 | return res; |
552 | return res; |
358 | } |
553 | } |
359 | #endif |
554 | #endif |
360 | |
555 | |
… | |
… | |
363 | #endif |
558 | #endif |
364 | |
559 | |
365 | #if !HAVE_READAHEAD |
560 | #if !HAVE_READAHEAD |
366 | # define readahead aio_readahead |
561 | # define readahead aio_readahead |
367 | |
562 | |
|
|
563 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
564 | { |
368 | static char readahead_buf[4096]; |
565 | char readahead_buf[4096]; |
369 | |
566 | |
370 | static ssize_t |
|
|
371 | readahead (int fd, off_t offset, size_t count) |
|
|
372 | { |
|
|
373 | while (count > 0) |
567 | while (count > 0) |
374 | { |
568 | { |
375 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
569 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
376 | |
570 | |
377 | pread (fd, readahead_buf, len, offset); |
571 | pread (fd, readahead_buf, len, offset); |
… | |
… | |
381 | |
575 | |
382 | errno = 0; |
576 | errno = 0; |
383 | } |
577 | } |
384 | #endif |
578 | #endif |
385 | |
579 | |
|
|
580 | #if !HAVE_READDIR_R |
|
|
581 | # define readdir_r aio_readdir_r |
|
|
582 | |
|
|
583 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
584 | |
|
|
585 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
586 | { |
|
|
587 | struct dirent *e; |
|
|
588 | int errorno; |
|
|
589 | |
|
|
590 | pthread_mutex_lock (&readdirlock); |
|
|
591 | |
|
|
592 | e = readdir (dirp); |
|
|
593 | errorno = errno; |
|
|
594 | |
|
|
595 | if (e) |
|
|
596 | { |
|
|
597 | *res = ent; |
|
|
598 | strcpy (ent->d_name, e->d_name); |
|
|
599 | } |
|
|
600 | else |
|
|
601 | *res = 0; |
|
|
602 | |
|
|
603 | pthread_mutex_unlock (&readdirlock); |
|
|
604 | |
|
|
605 | errno = errorno; |
|
|
606 | return e ? 0 : -1; |
|
|
607 | } |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | /* sendfile always needs emulation */ |
|
|
611 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
612 | { |
|
|
613 | ssize_t res; |
|
|
614 | |
|
|
615 | if (!count) |
|
|
616 | return 0; |
|
|
617 | |
|
|
618 | #if HAVE_SENDFILE |
|
|
619 | # if __linux |
|
|
620 | res = sendfile (ofd, ifd, &offset, count); |
|
|
621 | |
|
|
622 | # elif __freebsd |
|
|
623 | /* |
|
|
624 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
625 | * wasted on making it similar to other I/O functions. |
|
|
626 | */ |
|
|
627 | { |
|
|
628 | off_t sbytes; |
|
|
629 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
630 | |
|
|
631 | if (res < 0 && sbytes) |
|
|
632 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
633 | res = sbytes; |
|
|
634 | } |
|
|
635 | |
|
|
636 | # elif __hpux |
|
|
637 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
638 | |
|
|
639 | # elif __solaris |
|
|
640 | { |
|
|
641 | struct sendfilevec vec; |
|
|
642 | size_t sbytes; |
|
|
643 | |
|
|
644 | vec.sfv_fd = ifd; |
|
|
645 | vec.sfv_flag = 0; |
|
|
646 | vec.sfv_off = offset; |
|
|
647 | vec.sfv_len = count; |
|
|
648 | |
|
|
649 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
650 | |
|
|
651 | if (res < 0 && sbytes) |
|
|
652 | res = sbytes; |
|
|
653 | } |
|
|
654 | |
|
|
655 | # endif |
|
|
656 | #else |
|
|
657 | res = -1; |
|
|
658 | errno = ENOSYS; |
|
|
659 | #endif |
|
|
660 | |
|
|
661 | if (res < 0 |
|
|
662 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
663 | #if __solaris |
|
|
664 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
665 | #endif |
|
|
666 | ) |
|
|
667 | ) |
|
|
668 | { |
|
|
669 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
670 | char buf[4096]; |
|
|
671 | res = 0; |
|
|
672 | |
|
|
673 | while (count) |
|
|
674 | { |
|
|
675 | ssize_t cnt; |
|
|
676 | |
|
|
677 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
|
|
678 | |
|
|
679 | if (cnt <= 0) |
|
|
680 | { |
|
|
681 | if (cnt && !res) res = -1; |
|
|
682 | break; |
|
|
683 | } |
|
|
684 | |
|
|
685 | cnt = write (ofd, buf, cnt); |
|
|
686 | |
|
|
687 | if (cnt <= 0) |
|
|
688 | { |
|
|
689 | if (cnt && !res) res = -1; |
|
|
690 | break; |
|
|
691 | } |
|
|
692 | |
|
|
693 | offset += cnt; |
|
|
694 | res += cnt; |
|
|
695 | count -= cnt; |
|
|
696 | } |
|
|
697 | } |
|
|
698 | |
|
|
699 | return res; |
|
|
700 | } |
|
|
701 | |
|
|
702 | /* read a full directory */ |
|
|
703 | static int scandir_ (const char *path, void **namesp) |
|
|
704 | { |
|
|
705 | DIR *dirp = opendir (path); |
|
|
706 | union |
|
|
707 | { |
|
|
708 | struct dirent d; |
|
|
709 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
710 | } u; |
|
|
711 | struct dirent *entp; |
|
|
712 | char *name, *names; |
|
|
713 | int memlen = 4096; |
|
|
714 | int memofs = 0; |
|
|
715 | int res = 0; |
|
|
716 | int errorno; |
|
|
717 | |
|
|
718 | if (!dirp) |
|
|
719 | return -1; |
|
|
720 | |
|
|
721 | names = malloc (memlen); |
|
|
722 | |
|
|
723 | for (;;) |
|
|
724 | { |
|
|
725 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
726 | |
|
|
727 | if (!entp) |
|
|
728 | break; |
|
|
729 | |
|
|
730 | name = entp->d_name; |
|
|
731 | |
|
|
732 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
733 | { |
|
|
734 | int len = strlen (name) + 1; |
|
|
735 | |
|
|
736 | res++; |
|
|
737 | |
|
|
738 | while (memofs + len > memlen) |
|
|
739 | { |
|
|
740 | memlen *= 2; |
|
|
741 | names = realloc (names, memlen); |
|
|
742 | if (!names) |
|
|
743 | break; |
|
|
744 | } |
|
|
745 | |
|
|
746 | memcpy (names + memofs, name, len); |
|
|
747 | memofs += len; |
|
|
748 | } |
|
|
749 | } |
|
|
750 | |
|
|
751 | errorno = errno; |
|
|
752 | closedir (dirp); |
|
|
753 | |
|
|
754 | if (errorno) |
|
|
755 | { |
|
|
756 | free (names); |
|
|
757 | errno = errorno; |
|
|
758 | res = -1; |
|
|
759 | } |
|
|
760 | |
|
|
761 | *namesp = (void *)names; |
|
|
762 | return res; |
|
|
763 | } |
|
|
764 | |
386 | /*****************************************************************************/ |
765 | /*****************************************************************************/ |
387 | |
766 | |
388 | static void * |
|
|
389 | aio_proc (void *thr_arg) |
767 | static void *aio_proc (void *thr_arg) |
390 | { |
768 | { |
391 | aio_req req; |
769 | aio_req req; |
392 | int type; |
770 | int type; |
393 | |
771 | |
394 | do |
772 | do |
… | |
… | |
413 | |
791 | |
414 | pthread_mutex_unlock (&reqlock); |
792 | pthread_mutex_unlock (&reqlock); |
415 | |
793 | |
416 | errno = 0; /* strictly unnecessary */ |
794 | errno = 0; /* strictly unnecessary */ |
417 | |
795 | |
418 | type = req->type; |
796 | if (!(req->flags & FLAG_CANCELLED)) |
419 | |
797 | switch (type = req->type) /* remember type for QUIT check */ |
420 | switch (type) |
|
|
421 | { |
798 | { |
422 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
799 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
423 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
800 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
424 | |
801 | |
425 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
802 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
803 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
426 | |
804 | |
427 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
805 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
428 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
806 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
429 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
807 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
430 | |
808 | |
431 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
809 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
432 | case REQ_CLOSE: req->result = close (req->fd); break; |
810 | case REQ_CLOSE: req->result = close (req->fd); break; |
433 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
811 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
434 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
812 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
813 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
814 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
435 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
815 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
436 | |
816 | |
437 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
817 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
438 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
818 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
819 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
439 | |
820 | |
|
|
821 | case REQ_SLEEP: |
|
|
822 | { |
|
|
823 | struct timeval tv; |
|
|
824 | |
|
|
825 | tv.tv_sec = req->fd; |
|
|
826 | tv.tv_usec = req->fd2; |
|
|
827 | |
|
|
828 | req->result = select (0, 0, 0, 0, &tv); |
|
|
829 | } |
|
|
830 | |
|
|
831 | case REQ_GROUP: |
|
|
832 | case REQ_NOP: |
440 | case REQ_QUIT: |
833 | case REQ_QUIT: |
441 | break; |
834 | break; |
442 | |
835 | |
443 | default: |
836 | default: |
444 | req->result = ENOSYS; |
837 | req->result = ENOSYS; |
445 | break; |
838 | break; |
446 | } |
839 | } |
447 | |
840 | |
448 | req->errorno = errno; |
841 | req->errorno = errno; |
449 | |
842 | |
450 | pthread_mutex_lock (&reslock); |
843 | pthread_mutex_lock (&reslock); |
451 | |
844 | |
… | |
… | |
469 | while (type != REQ_QUIT); |
862 | while (type != REQ_QUIT); |
470 | |
863 | |
471 | return 0; |
864 | return 0; |
472 | } |
865 | } |
473 | |
866 | |
|
|
867 | /*****************************************************************************/ |
|
|
868 | |
|
|
869 | static void atfork_prepare (void) |
|
|
870 | { |
|
|
871 | pthread_mutex_lock (&reqlock); |
|
|
872 | pthread_mutex_lock (&reslock); |
|
|
873 | #if !HAVE_PREADWRITE |
|
|
874 | pthread_mutex_lock (&preadwritelock); |
|
|
875 | #endif |
|
|
876 | #if !HAVE_READDIR_R |
|
|
877 | pthread_mutex_lock (&readdirlock); |
|
|
878 | #endif |
|
|
879 | } |
|
|
880 | |
|
|
881 | static void atfork_parent (void) |
|
|
882 | { |
|
|
883 | #if !HAVE_READDIR_R |
|
|
884 | pthread_mutex_unlock (&readdirlock); |
|
|
885 | #endif |
|
|
886 | #if !HAVE_PREADWRITE |
|
|
887 | pthread_mutex_unlock (&preadwritelock); |
|
|
888 | #endif |
|
|
889 | pthread_mutex_unlock (&reslock); |
|
|
890 | pthread_mutex_unlock (&reqlock); |
|
|
891 | } |
|
|
892 | |
|
|
893 | static void atfork_child (void) |
|
|
894 | { |
|
|
895 | aio_req prv; |
|
|
896 | |
|
|
897 | started = 0; |
|
|
898 | |
|
|
899 | while (reqs) |
|
|
900 | { |
|
|
901 | prv = reqs; |
|
|
902 | reqs = prv->next; |
|
|
903 | req_free (prv); |
|
|
904 | } |
|
|
905 | |
|
|
906 | reqs = reqe = 0; |
|
|
907 | |
|
|
908 | while (ress) |
|
|
909 | { |
|
|
910 | prv = ress; |
|
|
911 | ress = prv->next; |
|
|
912 | req_free (prv); |
|
|
913 | } |
|
|
914 | |
|
|
915 | ress = rese = 0; |
|
|
916 | |
|
|
917 | close (respipe [0]); |
|
|
918 | close (respipe [1]); |
|
|
919 | create_pipe (); |
|
|
920 | |
|
|
921 | atfork_parent (); |
|
|
922 | } |
|
|
923 | |
474 | #define dREQ \ |
924 | #define dREQ \ |
475 | aio_req req; \ |
925 | aio_req req; \ |
476 | \ |
926 | \ |
477 | if (SvOK (callback) && !SvROK (callback)) \ |
927 | if (SvOK (callback) && !SvROK (callback)) \ |
478 | croak ("clalback must be undef or of reference type"); \ |
928 | croak ("callback must be undef or of reference type"); \ |
479 | \ |
929 | \ |
480 | Newz (0, req, 1, aio_cb); \ |
930 | Newz (0, req, 1, aio_cb); \ |
481 | if (!req) \ |
931 | if (!req) \ |
482 | croak ("out of memory during aio_req allocation"); \ |
932 | croak ("out of memory during aio_req allocation"); \ |
483 | \ |
933 | \ |
484 | req->callback = SvREFCNT_inc (callback); |
934 | req->callback = newSVsv (callback) |
|
|
935 | |
|
|
936 | #define REQ_SEND \ |
|
|
937 | req_send (req); \ |
|
|
938 | \ |
|
|
939 | if (GIMME_V != G_VOID) \ |
|
|
940 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
485 | |
941 | |
486 | MODULE = IO::AIO PACKAGE = IO::AIO |
942 | MODULE = IO::AIO PACKAGE = IO::AIO |
487 | |
943 | |
488 | PROTOTYPES: ENABLE |
944 | PROTOTYPES: ENABLE |
489 | |
945 | |
490 | BOOT: |
946 | BOOT: |
491 | { |
947 | { |
492 | if (pipe (respipe)) |
948 | HV *stash = gv_stashpv ("IO::AIO", 1); |
493 | croak ("unable to initialize result pipe"); |
949 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
950 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
951 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
494 | |
952 | |
495 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
953 | create_pipe (); |
496 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
497 | |
|
|
498 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
499 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
500 | |
|
|
501 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
954 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
502 | } |
955 | } |
503 | |
956 | |
504 | void |
957 | void |
505 | min_parallel(nthreads) |
958 | min_parallel (nthreads) |
506 | int nthreads |
959 | int nthreads |
507 | PROTOTYPE: $ |
960 | PROTOTYPE: $ |
508 | |
961 | |
509 | void |
962 | void |
510 | max_parallel(nthreads) |
963 | max_parallel (nthreads) |
511 | int nthreads |
964 | int nthreads |
512 | PROTOTYPE: $ |
965 | PROTOTYPE: $ |
513 | |
966 | |
514 | int |
967 | int |
515 | max_outstanding(nreqs) |
968 | max_outstanding (nreqs) |
516 | int nreqs |
969 | int nreqs |
517 | PROTOTYPE: $ |
970 | PROTOTYPE: $ |
518 | CODE: |
971 | CODE: |
519 | RETVAL = max_outstanding; |
972 | RETVAL = max_outstanding; |
520 | max_outstanding = nreqs; |
973 | max_outstanding = nreqs; |
521 | |
974 | |
522 | void |
975 | void |
523 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
976 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
524 | SV * pathname |
977 | SV * pathname |
525 | int flags |
978 | int flags |
526 | int mode |
979 | int mode |
527 | SV * callback |
980 | SV * callback |
528 | PROTOTYPE: $$$;$ |
981 | PROTOTYPE: $$$;$ |
529 | CODE: |
982 | PPCODE: |
530 | { |
983 | { |
531 | dREQ; |
984 | dREQ; |
532 | |
985 | |
533 | req->type = REQ_OPEN; |
986 | req->type = REQ_OPEN; |
534 | req->data = newSVsv (pathname); |
987 | req->data = newSVsv (pathname); |
535 | req->dataptr = SvPVbyte_nolen (req->data); |
988 | req->dataptr = SvPVbyte_nolen (req->data); |
536 | req->fd = flags; |
989 | req->fd = flags; |
537 | req->mode = mode; |
990 | req->mode = mode; |
538 | |
991 | |
539 | send_req (req); |
992 | REQ_SEND; |
540 | } |
993 | } |
541 | |
994 | |
542 | void |
995 | void |
543 | aio_close(fh,callback=&PL_sv_undef) |
996 | aio_close (fh,callback=&PL_sv_undef) |
544 | SV * fh |
997 | SV * fh |
545 | SV * callback |
998 | SV * callback |
546 | PROTOTYPE: $;$ |
999 | PROTOTYPE: $;$ |
547 | ALIAS: |
1000 | ALIAS: |
548 | aio_close = REQ_CLOSE |
1001 | aio_close = REQ_CLOSE |
549 | aio_fsync = REQ_FSYNC |
1002 | aio_fsync = REQ_FSYNC |
550 | aio_fdatasync = REQ_FDATASYNC |
1003 | aio_fdatasync = REQ_FDATASYNC |
551 | CODE: |
1004 | PPCODE: |
552 | { |
1005 | { |
553 | dREQ; |
1006 | dREQ; |
554 | |
1007 | |
555 | req->type = ix; |
1008 | req->type = ix; |
556 | req->fh = newSVsv (fh); |
1009 | req->fh = newSVsv (fh); |
557 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1010 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
558 | |
1011 | |
559 | send_req (req); |
1012 | REQ_SEND (req); |
560 | } |
1013 | } |
561 | |
1014 | |
562 | void |
1015 | void |
563 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1016 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
564 | SV * fh |
1017 | SV * fh |
565 | UV offset |
1018 | UV offset |
566 | IV length |
1019 | UV length |
567 | SV * data |
1020 | SV * data |
568 | IV dataoffset |
1021 | UV dataoffset |
569 | SV * callback |
1022 | SV * callback |
570 | ALIAS: |
1023 | ALIAS: |
571 | aio_read = REQ_READ |
1024 | aio_read = REQ_READ |
572 | aio_write = REQ_WRITE |
1025 | aio_write = REQ_WRITE |
573 | PROTOTYPE: $$$$$;$ |
1026 | PROTOTYPE: $$$$$;$ |
574 | CODE: |
1027 | PPCODE: |
575 | { |
1028 | { |
576 | aio_req req; |
1029 | aio_req req; |
577 | STRLEN svlen; |
1030 | STRLEN svlen; |
578 | char *svptr = SvPVbyte (data, svlen); |
1031 | char *svptr = SvPVbyte (data, svlen); |
579 | |
1032 | |
… | |
… | |
610 | : IoOFP (sv_2io (fh))); |
1063 | : IoOFP (sv_2io (fh))); |
611 | req->offset = offset; |
1064 | req->offset = offset; |
612 | req->length = length; |
1065 | req->length = length; |
613 | req->data = SvREFCNT_inc (data); |
1066 | req->data = SvREFCNT_inc (data); |
614 | req->dataptr = (char *)svptr + dataoffset; |
1067 | req->dataptr = (char *)svptr + dataoffset; |
615 | req->callback = SvREFCNT_inc (callback); |
|
|
616 | |
1068 | |
617 | send_req (req); |
1069 | if (!SvREADONLY (data)) |
|
|
1070 | { |
|
|
1071 | SvREADONLY_on (data); |
|
|
1072 | req->data2ptr = (void *)data; |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | REQ_SEND; |
618 | } |
1076 | } |
619 | } |
1077 | } |
620 | |
1078 | |
621 | void |
1079 | void |
|
|
1080 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1081 | SV * out_fh |
|
|
1082 | SV * in_fh |
|
|
1083 | UV in_offset |
|
|
1084 | UV length |
|
|
1085 | SV * callback |
|
|
1086 | PROTOTYPE: $$$$;$ |
|
|
1087 | PPCODE: |
|
|
1088 | { |
|
|
1089 | dREQ; |
|
|
1090 | |
|
|
1091 | req->type = REQ_SENDFILE; |
|
|
1092 | req->fh = newSVsv (out_fh); |
|
|
1093 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1094 | req->fh2 = newSVsv (in_fh); |
|
|
1095 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1096 | req->offset = in_offset; |
|
|
1097 | req->length = length; |
|
|
1098 | |
|
|
1099 | REQ_SEND; |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | void |
622 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1103 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
623 | SV * fh |
1104 | SV * fh |
624 | UV offset |
1105 | UV offset |
625 | IV length |
1106 | IV length |
626 | SV * callback |
1107 | SV * callback |
627 | PROTOTYPE: $$$;$ |
1108 | PROTOTYPE: $$$;$ |
628 | CODE: |
1109 | PPCODE: |
629 | { |
1110 | { |
630 | dREQ; |
1111 | dREQ; |
631 | |
1112 | |
632 | req->type = REQ_READAHEAD; |
1113 | req->type = REQ_READAHEAD; |
633 | req->fh = newSVsv (fh); |
1114 | req->fh = newSVsv (fh); |
634 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1115 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
635 | req->offset = offset; |
1116 | req->offset = offset; |
636 | req->length = length; |
1117 | req->length = length; |
637 | |
1118 | |
638 | send_req (req); |
1119 | REQ_SEND; |
639 | } |
1120 | } |
640 | |
1121 | |
641 | void |
1122 | void |
642 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1123 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
643 | SV * fh_or_path |
1124 | SV * fh_or_path |
644 | SV * callback |
1125 | SV * callback |
645 | ALIAS: |
1126 | ALIAS: |
646 | aio_stat = REQ_STAT |
1127 | aio_stat = REQ_STAT |
647 | aio_lstat = REQ_LSTAT |
1128 | aio_lstat = REQ_LSTAT |
648 | CODE: |
1129 | PPCODE: |
649 | { |
1130 | { |
650 | dREQ; |
1131 | dREQ; |
651 | |
1132 | |
652 | New (0, req->statdata, 1, Stat_t); |
1133 | New (0, req->statdata, 1, Stat_t); |
653 | if (!req->statdata) |
1134 | if (!req->statdata) |
|
|
1135 | { |
|
|
1136 | req_free (req); |
654 | croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); |
1137 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1138 | } |
655 | |
1139 | |
656 | if (SvPOK (fh_or_path)) |
1140 | if (SvPOK (fh_or_path)) |
657 | { |
1141 | { |
658 | req->type = ix; |
1142 | req->type = ix; |
659 | req->data = newSVsv (fh_or_path); |
1143 | req->data = newSVsv (fh_or_path); |
… | |
… | |
664 | req->type = REQ_FSTAT; |
1148 | req->type = REQ_FSTAT; |
665 | req->fh = newSVsv (fh_or_path); |
1149 | req->fh = newSVsv (fh_or_path); |
666 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1150 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
667 | } |
1151 | } |
668 | |
1152 | |
669 | send_req (req); |
1153 | REQ_SEND; |
670 | } |
1154 | } |
671 | |
1155 | |
672 | void |
1156 | void |
673 | aio_unlink(pathname,callback=&PL_sv_undef) |
1157 | aio_unlink (pathname,callback=&PL_sv_undef) |
674 | SV * pathname |
1158 | SV * pathname |
675 | SV * callback |
1159 | SV * callback |
676 | ALIAS: |
1160 | ALIAS: |
677 | aio_unlink = REQ_UNLINK |
1161 | aio_unlink = REQ_UNLINK |
678 | aio_rmdir = REQ_RMDIR |
1162 | aio_rmdir = REQ_RMDIR |
|
|
1163 | aio_readdir = REQ_READDIR |
679 | CODE: |
1164 | PPCODE: |
680 | { |
1165 | { |
681 | dREQ; |
1166 | dREQ; |
682 | |
1167 | |
683 | req->type = ix; |
1168 | req->type = ix; |
684 | req->data = newSVsv (pathname); |
1169 | req->data = newSVsv (pathname); |
685 | req->dataptr = SvPVbyte_nolen (req->data); |
1170 | req->dataptr = SvPVbyte_nolen (req->data); |
686 | |
1171 | |
687 | send_req (req); |
1172 | REQ_SEND; |
688 | } |
1173 | } |
689 | |
1174 | |
690 | void |
1175 | void |
691 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1176 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
692 | SV * oldpath |
1177 | SV * oldpath |
693 | SV * newpath |
1178 | SV * newpath |
694 | SV * callback |
1179 | SV * callback |
|
|
1180 | ALIAS: |
|
|
1181 | aio_link = REQ_LINK |
|
|
1182 | aio_symlink = REQ_SYMLINK |
|
|
1183 | aio_rename = REQ_RENAME |
695 | CODE: |
1184 | PPCODE: |
696 | { |
1185 | { |
697 | dREQ; |
1186 | dREQ; |
698 | |
1187 | |
699 | req->type = REQ_SYMLINK; |
1188 | req->type = ix; |
700 | req->fh = newSVsv (oldpath); |
1189 | req->fh = newSVsv (oldpath); |
701 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1190 | req->data2ptr = SvPVbyte_nolen (req->fh); |
702 | req->data = newSVsv (newpath); |
1191 | req->data = newSVsv (newpath); |
703 | req->dataptr = SvPVbyte_nolen (req->data); |
1192 | req->dataptr = SvPVbyte_nolen (req->data); |
704 | |
1193 | |
705 | send_req (req); |
1194 | REQ_SEND; |
706 | } |
1195 | } |
707 | |
1196 | |
708 | void |
1197 | void |
|
|
1198 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1199 | double delay |
|
|
1200 | SV * callback |
|
|
1201 | PPCODE: |
|
|
1202 | { |
|
|
1203 | dREQ; |
|
|
1204 | |
|
|
1205 | req->type = REQ_SLEEP; |
|
|
1206 | req->fd = delay < 0. ? 0 : delay; |
|
|
1207 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1208 | |
|
|
1209 | REQ_SEND; |
|
|
1210 | } |
|
|
1211 | |
|
|
1212 | void |
|
|
1213 | aio_group (callback=&PL_sv_undef) |
|
|
1214 | SV * callback |
|
|
1215 | PROTOTYPE: ;$ |
|
|
1216 | PPCODE: |
|
|
1217 | { |
|
|
1218 | dREQ; |
|
|
1219 | req->type = REQ_GROUP; |
|
|
1220 | req_send (req); |
|
|
1221 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1222 | } |
|
|
1223 | |
|
|
1224 | void |
|
|
1225 | aio_nop (callback=&PL_sv_undef) |
|
|
1226 | SV * callback |
|
|
1227 | PPCODE: |
|
|
1228 | { |
|
|
1229 | dREQ; |
|
|
1230 | |
|
|
1231 | req->type = REQ_NOP; |
|
|
1232 | |
|
|
1233 | REQ_SEND; |
|
|
1234 | } |
|
|
1235 | |
|
|
1236 | void |
709 | flush() |
1237 | flush () |
710 | PROTOTYPE: |
1238 | PROTOTYPE: |
711 | CODE: |
1239 | CODE: |
712 | while (nreqs) |
1240 | while (nreqs) |
713 | { |
1241 | { |
714 | poll_wait (); |
1242 | poll_wait (); |
… | |
… | |
754 | CODE: |
1282 | CODE: |
755 | RETVAL = nreqs; |
1283 | RETVAL = nreqs; |
756 | OUTPUT: |
1284 | OUTPUT: |
757 | RETVAL |
1285 | RETVAL |
758 | |
1286 | |
|
|
1287 | PROTOTYPES: DISABLE |
|
|
1288 | |
|
|
1289 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1290 | |
|
|
1291 | void |
|
|
1292 | cancel (aio_req_ornot req) |
|
|
1293 | PROTOTYPE: |
|
|
1294 | CODE: |
|
|
1295 | req_cancel (req); |
|
|
1296 | |
|
|
1297 | void |
|
|
1298 | cb (aio_req req, SV *callback=&PL_sv_undef) |
|
|
1299 | CODE: |
|
|
1300 | SvREFCNT_dec (req->callback); |
|
|
1301 | req->callback = newSVsv (callback); |
|
|
1302 | |
|
|
1303 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1304 | |
|
|
1305 | void |
|
|
1306 | add (aio_req grp, ...) |
|
|
1307 | PPCODE: |
|
|
1308 | { |
|
|
1309 | int i; |
|
|
1310 | aio_req req; |
|
|
1311 | |
|
|
1312 | if (grp->fd == 2) |
|
|
1313 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1314 | |
|
|
1315 | for (i = 1; i < items; ++i ) |
|
|
1316 | { |
|
|
1317 | if (GIMME_V != G_VOID) |
|
|
1318 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1319 | |
|
|
1320 | req = SvAIO_REQ (ST (i)); |
|
|
1321 | |
|
|
1322 | if (req) |
|
|
1323 | { |
|
|
1324 | ++grp->length; |
|
|
1325 | req->grp = grp; |
|
|
1326 | |
|
|
1327 | req->grp_prev = 0; |
|
|
1328 | req->grp_next = grp->grp_first; |
|
|
1329 | |
|
|
1330 | if (grp->grp_first) |
|
|
1331 | grp->grp_first->grp_prev = req; |
|
|
1332 | |
|
|
1333 | grp->grp_first = req; |
|
|
1334 | } |
|
|
1335 | } |
|
|
1336 | } |
|
|
1337 | |
|
|
1338 | void |
|
|
1339 | result (aio_req grp, ...) |
|
|
1340 | CODE: |
|
|
1341 | { |
|
|
1342 | int i; |
|
|
1343 | AV *av = newAV (); |
|
|
1344 | |
|
|
1345 | for (i = 1; i < items; ++i ) |
|
|
1346 | av_push (av, newSVsv (ST (i))); |
|
|
1347 | |
|
|
1348 | SvREFCNT_dec (grp->data); |
|
|
1349 | grp->data = (SV *)av; |
|
|
1350 | } |
|
|
1351 | |
|
|
1352 | void |
|
|
1353 | feed_limit (aio_req grp, int limit) |
|
|
1354 | CODE: |
|
|
1355 | grp->fd2 = limit; |
|
|
1356 | aio_grp_feed (grp); |
|
|
1357 | |
|
|
1358 | void |
|
|
1359 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1360 | CODE: |
|
|
1361 | { |
|
|
1362 | SvREFCNT_dec (grp->fh2); |
|
|
1363 | grp->fh2 = newSVsv (callback); |
|
|
1364 | |
|
|
1365 | if (grp->fd2 <= 0) |
|
|
1366 | grp->fd2 = 2; |
|
|
1367 | |
|
|
1368 | aio_grp_feed (grp); |
|
|
1369 | } |
|
|
1370 | |