… | |
… | |
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, REQ_UNLINK, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | 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_GROUP, REQ_NOP, |
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61 | REQ_SLEEP, |
36 | }; |
62 | }; |
37 | |
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 | |
38 | typedef struct aio_cb { |
67 | typedef struct aio_cb |
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68 | { |
39 | struct aio_cb *volatile next; |
69 | struct aio_cb *volatile next; |
40 | |
70 | |
41 | int type; |
71 | SV *data, *callback; |
42 | |
72 | SV *fh, *fh2; |
43 | int fd; |
73 | void *dataptr, *data2ptr; |
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74 | Stat_t *statdata; |
44 | off_t offset; |
75 | off_t offset; |
45 | size_t length; |
76 | size_t length; |
46 | ssize_t result; |
77 | ssize_t result; |
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78 | |
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79 | STRLEN dataoffset; |
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80 | int type; |
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81 | int fd, fd2; |
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82 | int errorno; |
47 | mode_t mode; /* open */ |
83 | mode_t mode; /* open */ |
48 | int errorno; |
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49 | SV *data, *callback, *fh; |
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50 | void *dataptr; |
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51 | STRLEN dataoffset; |
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52 | |
84 | |
53 | Stat_t *statdata; |
85 | unsigned char flags; |
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86 | unsigned char pri; |
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87 | |
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88 | SV *self; /* the perl counterpart of this request, if any */ |
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89 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
54 | } aio_cb; |
90 | } aio_cb; |
55 | |
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 | |
56 | typedef aio_cb *aio_req; |
96 | typedef aio_cb *aio_req; |
|
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97 | typedef aio_cb *aio_req_ornot; |
57 | |
98 | |
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99 | enum { |
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100 | PRI_MIN = -4, |
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101 | PRI_MAX = 4, |
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102 | |
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103 | DEFAULT_PRI = 0, |
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104 | PRI_BIAS = -PRI_MIN, |
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105 | }; |
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106 | |
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107 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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108 | |
58 | static int started; |
109 | static int started, wanted; |
59 | static volatile int nreqs; |
110 | static volatile int nreqs; |
60 | static int max_outstanding = 1<<30; |
111 | static int max_outstanding = 1<<30; |
61 | static int respipe [2]; |
112 | static int respipe [2]; |
62 | |
113 | |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
114 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
… | |
… | |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
116 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
66 | |
117 | |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
118 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
119 | static volatile aio_req ress, rese; /* queue start, queue end */ |
69 | |
120 | |
70 | static void |
121 | static void req_invoke (aio_req req); |
71 | poll_wait () |
122 | static void req_free (aio_req req); |
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123 | |
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124 | /* must be called at most once */ |
|
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125 | static SV *req_sv (aio_req req, const char *klass) |
72 | { |
126 | { |
73 | if (nreqs && !ress) |
127 | if (!req->self) |
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128 | { |
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129 | req->self = (SV *)newHV (); |
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130 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
74 | { |
131 | } |
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132 | |
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133 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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134 | } |
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135 | |
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136 | static aio_req SvAIO_REQ (SV *sv) |
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137 | { |
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138 | MAGIC *mg; |
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139 | |
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140 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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141 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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142 | |
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143 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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144 | |
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145 | return mg ? (aio_req)mg->mg_ptr : 0; |
|
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146 | } |
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147 | |
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148 | static void aio_grp_feed (aio_req grp) |
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149 | { |
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150 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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151 | { |
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152 | int old_len = grp->length; |
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153 | |
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154 | if (grp->fh2 && SvOK (grp->fh2)) |
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155 | { |
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156 | dSP; |
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157 | |
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158 | ENTER; |
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159 | SAVETMPS; |
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160 | PUSHMARK (SP); |
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161 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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162 | PUTBACK; |
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163 | call_sv (grp->fh2, G_VOID | G_EVAL); |
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164 | SPAGAIN; |
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165 | FREETMPS; |
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166 | LEAVE; |
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167 | } |
|
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168 | |
|
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169 | /* stop if no progress has been made */ |
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170 | if (old_len == grp->length) |
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171 | { |
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172 | SvREFCNT_dec (grp->fh2); |
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173 | grp->fh2 = 0; |
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174 | break; |
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175 | } |
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176 | } |
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177 | } |
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178 | |
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179 | static void aio_grp_dec (aio_req grp) |
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180 | { |
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181 | --grp->length; |
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182 | |
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183 | /* call feeder, if applicable */ |
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184 | aio_grp_feed (grp); |
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185 | |
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186 | /* finish, if done */ |
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187 | if (!grp->length && grp->fd) |
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188 | { |
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189 | req_invoke (grp); |
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190 | req_free (grp); |
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191 | } |
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192 | } |
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193 | |
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194 | static void poll_wait () |
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195 | { |
75 | fd_set rfd; |
196 | fd_set rfd; |
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197 | |
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198 | while (nreqs) |
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199 | { |
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200 | aio_req req; |
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201 | pthread_mutex_lock (&reslock); |
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202 | req = ress; |
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203 | pthread_mutex_unlock (&reslock); |
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204 | |
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205 | if (req) |
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206 | return; |
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207 | |
76 | FD_ZERO(&rfd); |
208 | FD_ZERO(&rfd); |
77 | FD_SET(respipe [0], &rfd); |
209 | FD_SET(respipe [0], &rfd); |
78 | |
210 | |
79 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
211 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
80 | } |
212 | } |
81 | } |
213 | } |
82 | |
214 | |
83 | static int |
215 | static void req_invoke (aio_req req) |
84 | poll_cb () |
216 | { |
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217 | dSP; |
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218 | int errorno = errno; |
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219 | |
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220 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
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221 | return; |
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222 | |
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223 | errno = req->errorno; |
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224 | |
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225 | ENTER; |
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226 | SAVETMPS; |
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227 | PUSHMARK (SP); |
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228 | EXTEND (SP, 1); |
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229 | |
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230 | switch (req->type) |
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231 | { |
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232 | case REQ_READDIR: |
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233 | { |
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234 | SV *rv = &PL_sv_undef; |
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235 | |
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236 | if (req->result >= 0) |
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237 | { |
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238 | char *buf = req->data2ptr; |
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239 | AV *av = newAV (); |
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240 | |
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241 | while (req->result) |
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242 | { |
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243 | SV *sv = newSVpv (buf, 0); |
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244 | |
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245 | av_push (av, sv); |
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246 | buf += SvCUR (sv) + 1; |
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247 | req->result--; |
|
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248 | } |
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249 | |
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250 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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251 | } |
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252 | |
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253 | PUSHs (rv); |
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254 | } |
|
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255 | break; |
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256 | |
|
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257 | case REQ_OPEN: |
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258 | { |
|
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259 | /* convert fd to fh */ |
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260 | SV *fh; |
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261 | |
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262 | PUSHs (sv_2mortal (newSViv (req->result))); |
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263 | PUTBACK; |
|
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264 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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265 | SPAGAIN; |
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266 | |
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267 | fh = SvREFCNT_inc (POPs); |
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268 | |
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269 | PUSHMARK (SP); |
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270 | XPUSHs (sv_2mortal (fh)); |
|
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271 | } |
|
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272 | break; |
|
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273 | |
|
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274 | case REQ_GROUP: |
|
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275 | req->fd = 2; /* mark group as finished */ |
|
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276 | |
|
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277 | if (req->data) |
|
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278 | { |
|
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279 | int i; |
|
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280 | AV *av = (AV *)req->data; |
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281 | |
|
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282 | EXTEND (SP, AvFILL (av) + 1); |
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283 | for (i = 0; i <= AvFILL (av); ++i) |
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284 | PUSHs (*av_fetch (av, i, 0)); |
|
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285 | } |
|
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286 | break; |
|
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287 | |
|
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288 | case REQ_NOP: |
|
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289 | case REQ_SLEEP: |
|
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290 | break; |
|
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291 | |
|
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292 | default: |
|
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293 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
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294 | break; |
|
|
295 | } |
|
|
296 | |
|
|
297 | |
|
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298 | PUTBACK; |
|
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299 | call_sv (req->callback, G_VOID | G_EVAL); |
|
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300 | SPAGAIN; |
|
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301 | |
|
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302 | FREETMPS; |
|
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303 | LEAVE; |
|
|
304 | |
|
|
305 | errno = errorno; |
|
|
306 | |
|
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307 | if (SvTRUE (ERRSV)) |
|
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308 | { |
|
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309 | req_free (req); |
|
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310 | croak (0); |
|
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311 | } |
|
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312 | } |
|
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313 | |
|
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314 | static void req_free (aio_req req) |
|
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315 | { |
|
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316 | if (req->grp) |
|
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317 | { |
|
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318 | aio_req grp = req->grp; |
|
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319 | |
|
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320 | /* unlink request */ |
|
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321 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
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322 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
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323 | |
|
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324 | if (grp->grp_first == req) |
|
|
325 | grp->grp_first = req->grp_next; |
|
|
326 | |
|
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327 | aio_grp_dec (grp); |
|
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328 | } |
|
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329 | |
|
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330 | if (req->self) |
|
|
331 | { |
|
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332 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
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333 | SvREFCNT_dec (req->self); |
|
|
334 | } |
|
|
335 | |
|
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336 | SvREFCNT_dec (req->data); |
|
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337 | SvREFCNT_dec (req->fh); |
|
|
338 | SvREFCNT_dec (req->fh2); |
|
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339 | SvREFCNT_dec (req->callback); |
|
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340 | Safefree (req->statdata); |
|
|
341 | |
|
|
342 | if (req->type == REQ_READDIR && req->result >= 0) |
|
|
343 | free (req->data2ptr); |
|
|
344 | |
|
|
345 | Safefree (req); |
|
|
346 | } |
|
|
347 | |
|
|
348 | static void req_cancel (aio_req req) |
|
|
349 | { |
|
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350 | req->flags |= FLAG_CANCELLED; |
|
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351 | |
|
|
352 | if (req->type == REQ_GROUP) |
|
|
353 | { |
|
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354 | aio_req sub; |
|
|
355 | |
|
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356 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
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357 | req_cancel (sub); |
|
|
358 | } |
|
|
359 | } |
|
|
360 | |
|
|
361 | static int poll_cb () |
85 | { |
362 | { |
86 | dSP; |
363 | dSP; |
87 | int count = 0; |
364 | int count = 0; |
|
|
365 | int do_croak = 0; |
88 | aio_req req, prv; |
366 | aio_req req; |
89 | |
367 | |
|
|
368 | for (;;) |
|
|
369 | { |
90 | pthread_mutex_lock (&reslock); |
370 | pthread_mutex_lock (&reslock); |
|
|
371 | req = ress; |
91 | |
372 | |
92 | { |
373 | if (req) |
|
|
374 | { |
|
|
375 | ress = req->next; |
|
|
376 | |
|
|
377 | if (!ress) |
|
|
378 | { |
93 | /* read any signals sent by the worker threads */ |
379 | /* read any signals sent by the worker threads */ |
94 | char buf [32]; |
380 | char buf [32]; |
95 | while (read (respipe [0], buf, 32) > 0) |
381 | while (read (respipe [0], buf, 32) == 32) |
|
|
382 | ; |
|
|
383 | |
|
|
384 | rese = 0; |
|
|
385 | } |
96 | ; |
386 | } |
97 | } |
|
|
98 | |
387 | |
99 | req = ress; |
|
|
100 | ress = rese = 0; |
|
|
101 | |
|
|
102 | pthread_mutex_unlock (&reslock); |
388 | pthread_mutex_unlock (&reslock); |
103 | |
389 | |
104 | while (req) |
390 | if (!req) |
105 | { |
391 | break; |
|
|
392 | |
106 | nreqs--; |
393 | --nreqs; |
107 | |
394 | |
108 | if (req->type == REQ_QUIT) |
395 | if (req->type == REQ_QUIT) |
109 | started--; |
396 | started--; |
|
|
397 | else if (req->type == REQ_GROUP && req->length) |
|
|
398 | { |
|
|
399 | req->fd = 1; /* mark request as delayed */ |
|
|
400 | continue; |
|
|
401 | } |
110 | else |
402 | else |
111 | { |
403 | { |
112 | int errorno = errno; |
|
|
113 | errno = req->errorno; |
|
|
114 | |
|
|
115 | if (req->type == REQ_READ) |
404 | if (req->type == REQ_READ) |
116 | SvCUR_set (req->data, req->dataoffset |
405 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
117 | + req->result > 0 ? req->result : 0); |
|
|
118 | |
406 | |
|
|
407 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
408 | SvREADONLY_off (req->data); |
|
|
409 | |
119 | if (req->data) |
410 | if (req->statdata) |
120 | SvREFCNT_dec (req->data); |
|
|
121 | |
|
|
122 | if (req->fh) |
|
|
123 | SvREFCNT_dec (req->fh); |
|
|
124 | |
|
|
125 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
126 | { |
411 | { |
127 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
412 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
128 | PL_laststatval = req->result; |
413 | PL_laststatval = req->result; |
129 | PL_statcache = *(req->statdata); |
414 | PL_statcache = *(req->statdata); |
130 | |
|
|
131 | Safefree (req->statdata); |
|
|
132 | } |
415 | } |
133 | |
416 | |
134 | ENTER; |
417 | req_invoke (req); |
135 | PUSHMARK (SP); |
|
|
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
137 | |
418 | |
138 | if (req->type == REQ_OPEN) |
|
|
139 | { |
|
|
140 | /* convert fd to fh */ |
|
|
141 | SV *fh; |
|
|
142 | |
|
|
143 | PUTBACK; |
|
|
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
145 | SPAGAIN; |
|
|
146 | |
|
|
147 | fh = SvREFCNT_inc (POPs); |
|
|
148 | |
|
|
149 | PUSHMARK (SP); |
|
|
150 | XPUSHs (sv_2mortal (fh)); |
|
|
151 | } |
|
|
152 | |
|
|
153 | if (SvOK (req->callback)) |
|
|
154 | { |
|
|
155 | PUTBACK; |
|
|
156 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
157 | SPAGAIN; |
|
|
158 | } |
|
|
159 | |
|
|
160 | LEAVE; |
|
|
161 | |
|
|
162 | if (req->callback) |
|
|
163 | SvREFCNT_dec (req->callback); |
|
|
164 | |
|
|
165 | errno = errorno; |
|
|
166 | count++; |
419 | count++; |
167 | } |
420 | } |
168 | |
421 | |
169 | prv = req; |
|
|
170 | req = req->next; |
|
|
171 | Safefree (prv); |
422 | req_free (req); |
172 | |
|
|
173 | /* TODO: croak on errors? */ |
|
|
174 | } |
423 | } |
175 | |
424 | |
176 | return count; |
425 | return count; |
177 | } |
426 | } |
178 | |
427 | |
179 | static void *aio_proc(void *arg); |
428 | static void *aio_proc(void *arg); |
180 | |
429 | |
181 | static void |
|
|
182 | start_thread (void) |
430 | static void start_thread (void) |
183 | { |
431 | { |
184 | sigset_t fullsigset, oldsigset; |
432 | sigset_t fullsigset, oldsigset; |
185 | pthread_t tid; |
433 | pthread_t tid; |
186 | pthread_attr_t attr; |
434 | pthread_attr_t attr; |
187 | |
435 | |
… | |
… | |
196 | started++; |
444 | started++; |
197 | |
445 | |
198 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
446 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
199 | } |
447 | } |
200 | |
448 | |
201 | static void |
449 | static void req_send (aio_req req) |
202 | send_req (aio_req req) |
|
|
203 | { |
450 | { |
|
|
451 | while (started < wanted && nreqs >= started) |
|
|
452 | start_thread (); |
|
|
453 | |
204 | nreqs++; |
454 | ++nreqs; |
205 | |
455 | |
206 | pthread_mutex_lock (&reqlock); |
456 | pthread_mutex_lock (&reqlock); |
207 | |
457 | |
208 | req->next = 0; |
458 | req->next = 0; |
209 | |
459 | |
… | |
… | |
216 | reqe = reqs = req; |
466 | reqe = reqs = req; |
217 | |
467 | |
218 | pthread_cond_signal (&reqwait); |
468 | pthread_cond_signal (&reqwait); |
219 | pthread_mutex_unlock (&reqlock); |
469 | pthread_mutex_unlock (&reqlock); |
220 | |
470 | |
221 | while (nreqs > max_outstanding) |
471 | if (nreqs > max_outstanding) |
|
|
472 | for (;;) |
|
|
473 | { |
|
|
474 | poll_cb (); |
|
|
475 | |
|
|
476 | if (nreqs <= max_outstanding) |
|
|
477 | break; |
|
|
478 | |
|
|
479 | poll_wait (); |
|
|
480 | } |
|
|
481 | } |
|
|
482 | |
|
|
483 | static void end_thread (void) |
|
|
484 | { |
|
|
485 | aio_req req; |
|
|
486 | Newz (0, req, 1, aio_cb); |
|
|
487 | req->type = REQ_QUIT; |
|
|
488 | |
|
|
489 | req_send (req); |
|
|
490 | } |
|
|
491 | |
|
|
492 | static void min_parallel (int nthreads) |
|
|
493 | { |
|
|
494 | if (wanted < nthreads) |
|
|
495 | wanted = nthreads; |
|
|
496 | } |
|
|
497 | |
|
|
498 | static void max_parallel (int nthreads) |
|
|
499 | { |
|
|
500 | int cur = started; |
|
|
501 | |
|
|
502 | if (wanted > nthreads) |
|
|
503 | wanted = nthreads; |
|
|
504 | |
|
|
505 | while (cur > wanted) |
|
|
506 | { |
|
|
507 | end_thread (); |
|
|
508 | cur--; |
|
|
509 | } |
|
|
510 | |
|
|
511 | while (started > wanted) |
222 | { |
512 | { |
223 | poll_wait (); |
513 | poll_wait (); |
224 | poll_cb (); |
514 | poll_cb (); |
225 | } |
515 | } |
226 | } |
516 | } |
227 | |
517 | |
228 | static void |
518 | static void create_pipe () |
229 | end_thread (void) |
|
|
230 | { |
519 | { |
231 | aio_req req; |
520 | if (pipe (respipe)) |
232 | New (0, req, 1, aio_cb); |
521 | croak ("unable to initialize result pipe"); |
233 | req->type = REQ_QUIT; |
|
|
234 | |
522 | |
235 | send_req (req); |
523 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
236 | } |
524 | croak ("cannot set result pipe to nonblocking mode"); |
237 | |
525 | |
|
|
526 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
527 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
528 | } |
|
|
529 | |
|
|
530 | /*****************************************************************************/ |
238 | /* work around various missing functions */ |
531 | /* work around various missing functions */ |
239 | |
532 | |
240 | #if !HAVE_PREADWRITE |
533 | #if !HAVE_PREADWRITE |
241 | # define pread aio_pread |
534 | # define pread aio_pread |
242 | # define pwrite aio_pwrite |
535 | # define pwrite aio_pwrite |
… | |
… | |
244 | /* |
537 | /* |
245 | * make our pread/pwrite safe against themselves, but not against |
538 | * make our pread/pwrite safe against themselves, but not against |
246 | * normal read/write by using a mutex. slows down execution a lot, |
539 | * normal read/write by using a mutex. slows down execution a lot, |
247 | * but that's your problem, not mine. |
540 | * but that's your problem, not mine. |
248 | */ |
541 | */ |
249 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
542 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
250 | |
543 | |
251 | static ssize_t |
544 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
252 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
253 | { |
545 | { |
254 | ssize_t res; |
546 | ssize_t res; |
255 | off_t ooffset; |
547 | off_t ooffset; |
256 | |
548 | |
257 | pthread_mutex_lock (&iolock); |
549 | pthread_mutex_lock (&preadwritelock); |
258 | ooffset = lseek (fd, 0, SEEK_CUR); |
550 | ooffset = lseek (fd, 0, SEEK_CUR); |
259 | lseek (fd, offset, SEEK_SET); |
551 | lseek (fd, offset, SEEK_SET); |
260 | res = read (fd, buf, count); |
552 | res = read (fd, buf, count); |
261 | lseek (fd, ooffset, SEEK_SET); |
553 | lseek (fd, ooffset, SEEK_SET); |
262 | pthread_mutex_unlock (&iolock); |
554 | pthread_mutex_unlock (&preadwritelock); |
263 | |
555 | |
264 | return res; |
556 | return res; |
265 | } |
557 | } |
266 | |
558 | |
267 | static ssize_t |
|
|
268 | pwrite (int fd, void *buf, size_t count, off_t offset) |
559 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
269 | { |
560 | { |
270 | ssize_t res; |
561 | ssize_t res; |
271 | off_t ooffset; |
562 | off_t ooffset; |
272 | |
563 | |
273 | pthread_mutex_lock (&iolock); |
564 | pthread_mutex_lock (&preadwritelock); |
274 | ooffset = lseek (fd, 0, SEEK_CUR); |
565 | ooffset = lseek (fd, 0, SEEK_CUR); |
275 | lseek (fd, offset, SEEK_SET); |
566 | lseek (fd, offset, SEEK_SET); |
276 | res = write (fd, buf, count); |
567 | res = write (fd, buf, count); |
277 | lseek (fd, offset, SEEK_SET); |
568 | lseek (fd, offset, SEEK_SET); |
278 | pthread_mutex_unlock (&iolock); |
569 | pthread_mutex_unlock (&preadwritelock); |
279 | |
570 | |
280 | return res; |
571 | return res; |
281 | } |
572 | } |
282 | #endif |
573 | #endif |
283 | |
574 | |
… | |
… | |
286 | #endif |
577 | #endif |
287 | |
578 | |
288 | #if !HAVE_READAHEAD |
579 | #if !HAVE_READAHEAD |
289 | # define readahead aio_readahead |
580 | # define readahead aio_readahead |
290 | |
581 | |
|
|
582 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
583 | { |
291 | static char readahead_buf[4096]; |
584 | char readahead_buf[4096]; |
292 | |
585 | |
293 | static ssize_t |
|
|
294 | readahead (int fd, off_t offset, size_t count) |
|
|
295 | { |
|
|
296 | while (count > 0) |
586 | while (count > 0) |
297 | { |
587 | { |
298 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
588 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
299 | |
589 | |
300 | pread (fd, readahead_buf, len, offset); |
590 | pread (fd, readahead_buf, len, offset); |
… | |
… | |
304 | |
594 | |
305 | errno = 0; |
595 | errno = 0; |
306 | } |
596 | } |
307 | #endif |
597 | #endif |
308 | |
598 | |
309 | static void * |
599 | #if !HAVE_READDIR_R |
|
|
600 | # define readdir_r aio_readdir_r |
|
|
601 | |
|
|
602 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
603 | |
|
|
604 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
605 | { |
|
|
606 | struct dirent *e; |
|
|
607 | int errorno; |
|
|
608 | |
|
|
609 | pthread_mutex_lock (&readdirlock); |
|
|
610 | |
|
|
611 | e = readdir (dirp); |
|
|
612 | errorno = errno; |
|
|
613 | |
|
|
614 | if (e) |
|
|
615 | { |
|
|
616 | *res = ent; |
|
|
617 | strcpy (ent->d_name, e->d_name); |
|
|
618 | } |
|
|
619 | else |
|
|
620 | *res = 0; |
|
|
621 | |
|
|
622 | pthread_mutex_unlock (&readdirlock); |
|
|
623 | |
|
|
624 | errno = errorno; |
|
|
625 | return e ? 0 : -1; |
|
|
626 | } |
|
|
627 | #endif |
|
|
628 | |
|
|
629 | /* sendfile always needs emulation */ |
|
|
630 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
631 | { |
|
|
632 | ssize_t res; |
|
|
633 | |
|
|
634 | if (!count) |
|
|
635 | return 0; |
|
|
636 | |
|
|
637 | #if HAVE_SENDFILE |
|
|
638 | # if __linux |
|
|
639 | res = sendfile (ofd, ifd, &offset, count); |
|
|
640 | |
|
|
641 | # elif __freebsd |
|
|
642 | /* |
|
|
643 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
644 | * wasted on making it similar to other I/O functions. |
|
|
645 | */ |
|
|
646 | { |
|
|
647 | off_t sbytes; |
|
|
648 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
649 | |
|
|
650 | if (res < 0 && sbytes) |
|
|
651 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
652 | res = sbytes; |
|
|
653 | } |
|
|
654 | |
|
|
655 | # elif __hpux |
|
|
656 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
657 | |
|
|
658 | # elif __solaris |
|
|
659 | { |
|
|
660 | struct sendfilevec vec; |
|
|
661 | size_t sbytes; |
|
|
662 | |
|
|
663 | vec.sfv_fd = ifd; |
|
|
664 | vec.sfv_flag = 0; |
|
|
665 | vec.sfv_off = offset; |
|
|
666 | vec.sfv_len = count; |
|
|
667 | |
|
|
668 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
669 | |
|
|
670 | if (res < 0 && sbytes) |
|
|
671 | res = sbytes; |
|
|
672 | } |
|
|
673 | |
|
|
674 | # endif |
|
|
675 | #else |
|
|
676 | res = -1; |
|
|
677 | errno = ENOSYS; |
|
|
678 | #endif |
|
|
679 | |
|
|
680 | if (res < 0 |
|
|
681 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
682 | #if __solaris |
|
|
683 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
684 | #endif |
|
|
685 | ) |
|
|
686 | ) |
|
|
687 | { |
|
|
688 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
689 | char buf[4096]; |
|
|
690 | res = 0; |
|
|
691 | |
|
|
692 | while (count) |
|
|
693 | { |
|
|
694 | ssize_t cnt; |
|
|
695 | |
|
|
696 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
|
|
697 | |
|
|
698 | if (cnt <= 0) |
|
|
699 | { |
|
|
700 | if (cnt && !res) res = -1; |
|
|
701 | break; |
|
|
702 | } |
|
|
703 | |
|
|
704 | cnt = write (ofd, buf, cnt); |
|
|
705 | |
|
|
706 | if (cnt <= 0) |
|
|
707 | { |
|
|
708 | if (cnt && !res) res = -1; |
|
|
709 | break; |
|
|
710 | } |
|
|
711 | |
|
|
712 | offset += cnt; |
|
|
713 | res += cnt; |
|
|
714 | count -= cnt; |
|
|
715 | } |
|
|
716 | } |
|
|
717 | |
|
|
718 | return res; |
|
|
719 | } |
|
|
720 | |
|
|
721 | /* read a full directory */ |
|
|
722 | static int scandir_ (const char *path, void **namesp) |
|
|
723 | { |
|
|
724 | DIR *dirp = opendir (path); |
|
|
725 | union |
|
|
726 | { |
|
|
727 | struct dirent d; |
|
|
728 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
729 | } u; |
|
|
730 | struct dirent *entp; |
|
|
731 | char *name, *names; |
|
|
732 | int memlen = 4096; |
|
|
733 | int memofs = 0; |
|
|
734 | int res = 0; |
|
|
735 | int errorno; |
|
|
736 | |
|
|
737 | if (!dirp) |
|
|
738 | return -1; |
|
|
739 | |
|
|
740 | names = malloc (memlen); |
|
|
741 | |
|
|
742 | for (;;) |
|
|
743 | { |
|
|
744 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
745 | |
|
|
746 | if (!entp) |
|
|
747 | break; |
|
|
748 | |
|
|
749 | name = entp->d_name; |
|
|
750 | |
|
|
751 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
752 | { |
|
|
753 | int len = strlen (name) + 1; |
|
|
754 | |
|
|
755 | res++; |
|
|
756 | |
|
|
757 | while (memofs + len > memlen) |
|
|
758 | { |
|
|
759 | memlen *= 2; |
|
|
760 | names = realloc (names, memlen); |
|
|
761 | if (!names) |
|
|
762 | break; |
|
|
763 | } |
|
|
764 | |
|
|
765 | memcpy (names + memofs, name, len); |
|
|
766 | memofs += len; |
|
|
767 | } |
|
|
768 | } |
|
|
769 | |
|
|
770 | errorno = errno; |
|
|
771 | closedir (dirp); |
|
|
772 | |
|
|
773 | if (errorno) |
|
|
774 | { |
|
|
775 | free (names); |
|
|
776 | errno = errorno; |
|
|
777 | res = -1; |
|
|
778 | } |
|
|
779 | |
|
|
780 | *namesp = (void *)names; |
|
|
781 | return res; |
|
|
782 | } |
|
|
783 | |
|
|
784 | /*****************************************************************************/ |
|
|
785 | |
310 | aio_proc (void *thr_arg) |
786 | static void *aio_proc (void *thr_arg) |
311 | { |
787 | { |
312 | aio_req req; |
788 | aio_req req; |
313 | int type; |
789 | int type; |
314 | |
790 | |
315 | do |
791 | do |
… | |
… | |
333 | } |
809 | } |
334 | |
810 | |
335 | pthread_mutex_unlock (&reqlock); |
811 | pthread_mutex_unlock (&reqlock); |
336 | |
812 | |
337 | errno = 0; /* strictly unnecessary */ |
813 | errno = 0; /* strictly unnecessary */ |
|
|
814 | type = req->type; /* remember type for QUIT check */ |
338 | |
815 | |
339 | type = req->type; |
816 | if (!(req->flags & FLAG_CANCELLED)) |
340 | |
|
|
341 | switch (type) |
817 | switch (type) |
342 | { |
818 | { |
343 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
819 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
344 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
820 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
345 | |
821 | |
346 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
822 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
823 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
347 | |
824 | |
348 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
825 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
349 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
826 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
350 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
827 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
351 | |
828 | |
352 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
829 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
353 | case REQ_CLOSE: req->result = close (req->fd); break; |
830 | case REQ_CLOSE: req->result = close (req->fd); break; |
354 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
831 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
832 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
833 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
834 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
835 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
355 | |
836 | |
356 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
837 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
357 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
838 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
839 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
358 | |
840 | |
|
|
841 | case REQ_SLEEP: |
|
|
842 | { |
|
|
843 | struct timeval tv; |
|
|
844 | |
|
|
845 | tv.tv_sec = req->fd; |
|
|
846 | tv.tv_usec = req->fd2; |
|
|
847 | |
|
|
848 | req->result = select (0, 0, 0, 0, &tv); |
|
|
849 | } |
|
|
850 | |
|
|
851 | case REQ_GROUP: |
|
|
852 | case REQ_NOP: |
359 | case REQ_QUIT: |
853 | case REQ_QUIT: |
360 | break; |
854 | break; |
361 | |
855 | |
362 | default: |
856 | default: |
363 | req->result = ENOSYS; |
857 | req->result = ENOSYS; |
364 | break; |
858 | break; |
365 | } |
859 | } |
366 | |
860 | |
367 | req->errorno = errno; |
861 | req->errorno = errno; |
368 | |
862 | |
369 | pthread_mutex_lock (&reslock); |
863 | pthread_mutex_lock (&reslock); |
370 | |
864 | |
… | |
… | |
388 | while (type != REQ_QUIT); |
882 | while (type != REQ_QUIT); |
389 | |
883 | |
390 | return 0; |
884 | return 0; |
391 | } |
885 | } |
392 | |
886 | |
|
|
887 | /*****************************************************************************/ |
|
|
888 | |
|
|
889 | static void atfork_prepare (void) |
|
|
890 | { |
|
|
891 | pthread_mutex_lock (&reqlock); |
|
|
892 | pthread_mutex_lock (&reslock); |
|
|
893 | #if !HAVE_PREADWRITE |
|
|
894 | pthread_mutex_lock (&preadwritelock); |
|
|
895 | #endif |
|
|
896 | #if !HAVE_READDIR_R |
|
|
897 | pthread_mutex_lock (&readdirlock); |
|
|
898 | #endif |
|
|
899 | } |
|
|
900 | |
|
|
901 | static void atfork_parent (void) |
|
|
902 | { |
|
|
903 | #if !HAVE_READDIR_R |
|
|
904 | pthread_mutex_unlock (&readdirlock); |
|
|
905 | #endif |
|
|
906 | #if !HAVE_PREADWRITE |
|
|
907 | pthread_mutex_unlock (&preadwritelock); |
|
|
908 | #endif |
|
|
909 | pthread_mutex_unlock (&reslock); |
|
|
910 | pthread_mutex_unlock (&reqlock); |
|
|
911 | } |
|
|
912 | |
|
|
913 | static void atfork_child (void) |
|
|
914 | { |
|
|
915 | aio_req prv; |
|
|
916 | |
|
|
917 | started = 0; |
|
|
918 | |
|
|
919 | while (reqs) |
|
|
920 | { |
|
|
921 | prv = reqs; |
|
|
922 | reqs = prv->next; |
|
|
923 | req_free (prv); |
|
|
924 | } |
|
|
925 | |
|
|
926 | reqs = reqe = 0; |
|
|
927 | |
|
|
928 | while (ress) |
|
|
929 | { |
|
|
930 | prv = ress; |
|
|
931 | ress = prv->next; |
|
|
932 | req_free (prv); |
|
|
933 | } |
|
|
934 | |
|
|
935 | ress = rese = 0; |
|
|
936 | |
|
|
937 | close (respipe [0]); |
|
|
938 | close (respipe [1]); |
|
|
939 | create_pipe (); |
|
|
940 | |
|
|
941 | atfork_parent (); |
|
|
942 | } |
|
|
943 | |
|
|
944 | #define dREQ \ |
|
|
945 | aio_req req; \ |
|
|
946 | int req_pri = next_pri; \ |
|
|
947 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
948 | \ |
|
|
949 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
950 | croak ("callback must be undef or of reference type"); \ |
|
|
951 | \ |
|
|
952 | Newz (0, req, 1, aio_cb); \ |
|
|
953 | if (!req) \ |
|
|
954 | croak ("out of memory during aio_req allocation"); \ |
|
|
955 | \ |
|
|
956 | req->callback = newSVsv (callback); \ |
|
|
957 | req->pri = req_pri |
|
|
958 | |
|
|
959 | #define REQ_SEND \ |
|
|
960 | req_send (req); \ |
|
|
961 | \ |
|
|
962 | if (GIMME_V != G_VOID) \ |
|
|
963 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
964 | |
393 | MODULE = IO::AIO PACKAGE = IO::AIO |
965 | MODULE = IO::AIO PACKAGE = IO::AIO |
394 | |
966 | |
395 | PROTOTYPES: ENABLE |
967 | PROTOTYPES: ENABLE |
396 | |
968 | |
397 | BOOT: |
969 | BOOT: |
398 | { |
970 | { |
399 | if (pipe (respipe)) |
971 | HV *stash = gv_stashpv ("IO::AIO", 1); |
400 | croak ("unable to initialize result pipe"); |
972 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
973 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
974 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
401 | |
975 | |
402 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
976 | create_pipe (); |
403 | croak ("cannot set result pipe to nonblocking mode"); |
977 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
404 | |
|
|
405 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
406 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
407 | } |
978 | } |
408 | |
979 | |
409 | void |
980 | void |
410 | min_parallel(nthreads) |
981 | min_parallel (nthreads) |
411 | int nthreads |
982 | int nthreads |
412 | PROTOTYPE: $ |
983 | PROTOTYPE: $ |
413 | CODE: |
|
|
414 | while (nthreads > started) |
|
|
415 | start_thread (); |
|
|
416 | |
984 | |
417 | void |
985 | void |
418 | max_parallel(nthreads) |
986 | max_parallel (nthreads) |
419 | int nthreads |
987 | int nthreads |
420 | PROTOTYPE: $ |
988 | PROTOTYPE: $ |
421 | CODE: |
|
|
422 | { |
|
|
423 | int cur = started; |
|
|
424 | while (cur > nthreads) |
|
|
425 | { |
|
|
426 | end_thread (); |
|
|
427 | cur--; |
|
|
428 | } |
|
|
429 | |
|
|
430 | while (started > nthreads) |
|
|
431 | { |
|
|
432 | poll_wait (); |
|
|
433 | poll_cb (); |
|
|
434 | } |
|
|
435 | } |
|
|
436 | |
989 | |
437 | int |
990 | int |
438 | max_outstanding(nreqs) |
991 | max_outstanding (nreqs) |
439 | int nreqs |
992 | int nreqs |
440 | PROTOTYPE: $ |
993 | PROTOTYPE: $ |
441 | CODE: |
994 | CODE: |
442 | RETVAL = max_outstanding; |
995 | RETVAL = max_outstanding; |
443 | max_outstanding = nreqs; |
996 | max_outstanding = nreqs; |
444 | |
997 | |
445 | void |
998 | void |
446 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
999 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
447 | SV * pathname |
1000 | SV * pathname |
448 | int flags |
1001 | int flags |
449 | int mode |
1002 | int mode |
450 | SV * callback |
1003 | SV * callback |
451 | PROTOTYPE: $$$;$ |
1004 | PROTOTYPE: $$$;$ |
452 | CODE: |
1005 | PPCODE: |
453 | { |
1006 | { |
454 | aio_req req; |
1007 | dREQ; |
455 | |
|
|
456 | Newz (0, req, 1, aio_cb); |
|
|
457 | |
|
|
458 | if (!req) |
|
|
459 | croak ("out of memory during aio_req allocation"); |
|
|
460 | |
1008 | |
461 | req->type = REQ_OPEN; |
1009 | req->type = REQ_OPEN; |
462 | req->data = newSVsv (pathname); |
1010 | req->data = newSVsv (pathname); |
463 | req->dataptr = SvPV_nolen (req->data); |
1011 | req->dataptr = SvPVbyte_nolen (req->data); |
464 | req->fd = flags; |
1012 | req->fd = flags; |
465 | req->mode = mode; |
1013 | req->mode = mode; |
466 | req->callback = SvREFCNT_inc (callback); |
|
|
467 | |
1014 | |
468 | send_req (req); |
1015 | REQ_SEND; |
469 | } |
1016 | } |
470 | |
1017 | |
471 | void |
1018 | void |
472 | aio_close(fh,callback=&PL_sv_undef) |
1019 | aio_close (fh,callback=&PL_sv_undef) |
473 | SV * fh |
1020 | SV * fh |
474 | SV * callback |
1021 | SV * callback |
475 | PROTOTYPE: $;$ |
1022 | PROTOTYPE: $;$ |
476 | ALIAS: |
1023 | ALIAS: |
477 | aio_close = REQ_CLOSE |
1024 | aio_close = REQ_CLOSE |
478 | aio_fsync = REQ_FSYNC |
1025 | aio_fsync = REQ_FSYNC |
479 | aio_fdatasync = REQ_FDATASYNC |
1026 | aio_fdatasync = REQ_FDATASYNC |
480 | CODE: |
1027 | PPCODE: |
481 | { |
1028 | { |
482 | aio_req req; |
1029 | dREQ; |
483 | |
|
|
484 | Newz (0, req, 1, aio_cb); |
|
|
485 | |
|
|
486 | if (!req) |
|
|
487 | croak ("out of memory during aio_req allocation"); |
|
|
488 | |
1030 | |
489 | req->type = ix; |
1031 | req->type = ix; |
490 | req->fh = newSVsv (fh); |
1032 | req->fh = newSVsv (fh); |
491 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1033 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
492 | req->callback = SvREFCNT_inc (callback); |
|
|
493 | |
1034 | |
494 | send_req (req); |
1035 | REQ_SEND (req); |
495 | } |
1036 | } |
496 | |
1037 | |
497 | void |
1038 | void |
498 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1039 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
499 | SV * fh |
1040 | SV * fh |
500 | UV offset |
1041 | UV offset |
501 | IV length |
1042 | UV length |
502 | SV * data |
1043 | SV * data |
503 | IV dataoffset |
1044 | UV dataoffset |
504 | SV * callback |
1045 | SV * callback |
505 | ALIAS: |
1046 | ALIAS: |
506 | aio_read = REQ_READ |
1047 | aio_read = REQ_READ |
507 | aio_write = REQ_WRITE |
1048 | aio_write = REQ_WRITE |
508 | PROTOTYPE: $$$$$;$ |
1049 | PROTOTYPE: $$$$$;$ |
509 | CODE: |
1050 | PPCODE: |
510 | { |
1051 | { |
511 | aio_req req; |
1052 | aio_req req; |
512 | STRLEN svlen; |
1053 | STRLEN svlen; |
513 | char *svptr = SvPVbyte (data, svlen); |
1054 | char *svptr = SvPVbyte (data, svlen); |
514 | |
1055 | |
… | |
… | |
534 | } |
1075 | } |
535 | |
1076 | |
536 | if (length < 0) |
1077 | if (length < 0) |
537 | croak ("length must not be negative"); |
1078 | croak ("length must not be negative"); |
538 | |
1079 | |
539 | Newz (0, req, 1, aio_cb); |
1080 | { |
|
|
1081 | dREQ; |
540 | |
1082 | |
541 | if (!req) |
|
|
542 | croak ("out of memory during aio_req allocation"); |
|
|
543 | |
|
|
544 | req->type = ix; |
1083 | req->type = ix; |
545 | req->fh = newSVsv (fh); |
1084 | req->fh = newSVsv (fh); |
546 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1085 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
547 | : IoOFP (sv_2io (fh))); |
1086 | : IoOFP (sv_2io (fh))); |
548 | req->offset = offset; |
1087 | req->offset = offset; |
|
|
1088 | req->length = length; |
|
|
1089 | req->data = SvREFCNT_inc (data); |
|
|
1090 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1091 | |
|
|
1092 | if (!SvREADONLY (data)) |
|
|
1093 | { |
|
|
1094 | SvREADONLY_on (data); |
|
|
1095 | req->data2ptr = (void *)data; |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | REQ_SEND; |
|
|
1099 | } |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | void |
|
|
1103 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1104 | SV * out_fh |
|
|
1105 | SV * in_fh |
|
|
1106 | UV in_offset |
|
|
1107 | UV length |
|
|
1108 | SV * callback |
|
|
1109 | PROTOTYPE: $$$$;$ |
|
|
1110 | PPCODE: |
|
|
1111 | { |
|
|
1112 | dREQ; |
|
|
1113 | |
|
|
1114 | req->type = REQ_SENDFILE; |
|
|
1115 | req->fh = newSVsv (out_fh); |
|
|
1116 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1117 | req->fh2 = newSVsv (in_fh); |
|
|
1118 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1119 | req->offset = in_offset; |
549 | req->length = length; |
1120 | req->length = length; |
550 | req->data = SvREFCNT_inc (data); |
|
|
551 | req->dataptr = (char *)svptr + dataoffset; |
|
|
552 | req->callback = SvREFCNT_inc (callback); |
|
|
553 | |
1121 | |
554 | send_req (req); |
1122 | REQ_SEND; |
555 | } |
1123 | } |
556 | |
1124 | |
557 | void |
1125 | void |
558 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1126 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
559 | SV * fh |
1127 | SV * fh |
560 | UV offset |
1128 | UV offset |
561 | IV length |
1129 | IV length |
562 | SV * callback |
1130 | SV * callback |
563 | PROTOTYPE: $$$;$ |
1131 | PROTOTYPE: $$$;$ |
564 | CODE: |
1132 | PPCODE: |
565 | { |
1133 | { |
566 | aio_req req; |
1134 | dREQ; |
567 | |
|
|
568 | if (length < 0) |
|
|
569 | croak ("length must not be negative"); |
|
|
570 | |
|
|
571 | Newz (0, req, 1, aio_cb); |
|
|
572 | |
|
|
573 | if (!req) |
|
|
574 | croak ("out of memory during aio_req allocation"); |
|
|
575 | |
1135 | |
576 | req->type = REQ_READAHEAD; |
1136 | req->type = REQ_READAHEAD; |
577 | req->fh = newSVsv (fh); |
1137 | req->fh = newSVsv (fh); |
578 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1138 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
579 | req->offset = offset; |
1139 | req->offset = offset; |
580 | req->length = length; |
1140 | req->length = length; |
581 | req->callback = SvREFCNT_inc (callback); |
|
|
582 | |
1141 | |
583 | send_req (req); |
1142 | REQ_SEND; |
584 | } |
1143 | } |
585 | |
1144 | |
586 | void |
1145 | void |
587 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1146 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
588 | SV * fh_or_path |
1147 | SV * fh_or_path |
589 | SV * callback |
1148 | SV * callback |
590 | ALIAS: |
1149 | ALIAS: |
591 | aio_stat = REQ_STAT |
1150 | aio_stat = REQ_STAT |
592 | aio_lstat = REQ_LSTAT |
1151 | aio_lstat = REQ_LSTAT |
593 | CODE: |
1152 | PPCODE: |
594 | { |
1153 | { |
595 | aio_req req; |
1154 | dREQ; |
596 | |
|
|
597 | Newz (0, req, 1, aio_cb); |
|
|
598 | |
|
|
599 | if (!req) |
|
|
600 | croak ("out of memory during aio_req allocation"); |
|
|
601 | |
1155 | |
602 | New (0, req->statdata, 1, Stat_t); |
1156 | New (0, req->statdata, 1, Stat_t); |
603 | |
|
|
604 | if (!req->statdata) |
1157 | if (!req->statdata) |
|
|
1158 | { |
|
|
1159 | req_free (req); |
605 | croak ("out of memory during aio_req->statdata allocation"); |
1160 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1161 | } |
606 | |
1162 | |
607 | if (SvPOK (fh_or_path)) |
1163 | if (SvPOK (fh_or_path)) |
608 | { |
1164 | { |
609 | req->type = ix; |
1165 | req->type = ix; |
610 | req->data = newSVsv (fh_or_path); |
1166 | req->data = newSVsv (fh_or_path); |
611 | req->dataptr = SvPV_nolen (req->data); |
1167 | req->dataptr = SvPVbyte_nolen (req->data); |
612 | } |
1168 | } |
613 | else |
1169 | else |
614 | { |
1170 | { |
615 | req->type = REQ_FSTAT; |
1171 | req->type = REQ_FSTAT; |
616 | req->fh = newSVsv (fh_or_path); |
1172 | req->fh = newSVsv (fh_or_path); |
617 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1173 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
618 | } |
1174 | } |
619 | |
1175 | |
620 | req->callback = SvREFCNT_inc (callback); |
1176 | REQ_SEND; |
621 | |
|
|
622 | send_req (req); |
|
|
623 | } |
1177 | } |
624 | |
1178 | |
625 | void |
1179 | void |
626 | aio_unlink(pathname,callback=&PL_sv_undef) |
1180 | aio_unlink (pathname,callback=&PL_sv_undef) |
627 | SV * pathname |
1181 | SV * pathname |
628 | SV * callback |
1182 | SV * callback |
|
|
1183 | ALIAS: |
|
|
1184 | aio_unlink = REQ_UNLINK |
|
|
1185 | aio_rmdir = REQ_RMDIR |
|
|
1186 | aio_readdir = REQ_READDIR |
|
|
1187 | PPCODE: |
|
|
1188 | { |
|
|
1189 | dREQ; |
|
|
1190 | |
|
|
1191 | req->type = ix; |
|
|
1192 | req->data = newSVsv (pathname); |
|
|
1193 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1194 | |
|
|
1195 | REQ_SEND; |
|
|
1196 | } |
|
|
1197 | |
|
|
1198 | void |
|
|
1199 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1200 | SV * oldpath |
|
|
1201 | SV * newpath |
|
|
1202 | SV * callback |
|
|
1203 | ALIAS: |
|
|
1204 | aio_link = REQ_LINK |
|
|
1205 | aio_symlink = REQ_SYMLINK |
|
|
1206 | aio_rename = REQ_RENAME |
|
|
1207 | PPCODE: |
|
|
1208 | { |
|
|
1209 | dREQ; |
|
|
1210 | |
|
|
1211 | req->type = ix; |
|
|
1212 | req->fh = newSVsv (oldpath); |
|
|
1213 | req->data2ptr = SvPVbyte_nolen (req->fh); |
|
|
1214 | req->data = newSVsv (newpath); |
|
|
1215 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1216 | |
|
|
1217 | REQ_SEND; |
|
|
1218 | } |
|
|
1219 | |
|
|
1220 | void |
|
|
1221 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1222 | double delay |
|
|
1223 | SV * callback |
|
|
1224 | PPCODE: |
|
|
1225 | { |
|
|
1226 | dREQ; |
|
|
1227 | |
|
|
1228 | req->type = REQ_SLEEP; |
|
|
1229 | req->fd = delay < 0. ? 0 : delay; |
|
|
1230 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1231 | |
|
|
1232 | REQ_SEND; |
|
|
1233 | } |
|
|
1234 | |
|
|
1235 | void |
|
|
1236 | aio_group (callback=&PL_sv_undef) |
|
|
1237 | SV * callback |
|
|
1238 | PROTOTYPE: ;$ |
|
|
1239 | PPCODE: |
|
|
1240 | { |
|
|
1241 | dREQ; |
|
|
1242 | |
|
|
1243 | req->type = REQ_GROUP; |
|
|
1244 | req_send (req); |
|
|
1245 | |
|
|
1246 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | void |
|
|
1250 | aio_nop (callback=&PL_sv_undef) |
|
|
1251 | SV * callback |
|
|
1252 | PPCODE: |
|
|
1253 | { |
|
|
1254 | dREQ; |
|
|
1255 | |
|
|
1256 | req->type = REQ_NOP; |
|
|
1257 | |
|
|
1258 | REQ_SEND; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | #if 0 |
|
|
1262 | |
|
|
1263 | void |
|
|
1264 | aio_pri (int pri = DEFAULT_PRI) |
629 | CODE: |
1265 | CODE: |
630 | { |
1266 | if (pri < PRI_MIN) pri = PRI_MIN; |
631 | aio_req req; |
1267 | if (pri > PRI_MAX) pri = PRI_MAX; |
632 | |
1268 | next_pri = pri + PRI_BIAS; |
633 | Newz (0, req, 1, aio_cb); |
|
|
634 | |
|
|
635 | if (!req) |
|
|
636 | croak ("out of memory during aio_req allocation"); |
|
|
637 | |
|
|
638 | req->type = REQ_UNLINK; |
|
|
639 | req->data = newSVsv (pathname); |
|
|
640 | req->dataptr = SvPV_nolen (req->data); |
|
|
641 | req->callback = SvREFCNT_inc (callback); |
|
|
642 | |
|
|
643 | send_req (req); |
|
|
644 | } |
|
|
645 | |
1269 | |
|
|
1270 | #endif |
|
|
1271 | |
646 | void |
1272 | void |
647 | flush() |
1273 | flush () |
648 | PROTOTYPE: |
1274 | PROTOTYPE: |
649 | CODE: |
1275 | CODE: |
650 | while (nreqs) |
1276 | while (nreqs) |
651 | { |
1277 | { |
652 | poll_wait (); |
1278 | poll_wait (); |
… | |
… | |
692 | CODE: |
1318 | CODE: |
693 | RETVAL = nreqs; |
1319 | RETVAL = nreqs; |
694 | OUTPUT: |
1320 | OUTPUT: |
695 | RETVAL |
1321 | RETVAL |
696 | |
1322 | |
|
|
1323 | PROTOTYPES: DISABLE |
|
|
1324 | |
|
|
1325 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1326 | |
|
|
1327 | void |
|
|
1328 | cancel (aio_req_ornot req) |
|
|
1329 | PROTOTYPE: |
|
|
1330 | CODE: |
|
|
1331 | req_cancel (req); |
|
|
1332 | |
|
|
1333 | void |
|
|
1334 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1335 | CODE: |
|
|
1336 | SvREFCNT_dec (req->callback); |
|
|
1337 | req->callback = newSVsv (callback); |
|
|
1338 | |
|
|
1339 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1340 | |
|
|
1341 | void |
|
|
1342 | add (aio_req grp, ...) |
|
|
1343 | PPCODE: |
|
|
1344 | { |
|
|
1345 | int i; |
|
|
1346 | aio_req req; |
|
|
1347 | |
|
|
1348 | if (grp->fd == 2) |
|
|
1349 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1350 | |
|
|
1351 | for (i = 1; i < items; ++i ) |
|
|
1352 | { |
|
|
1353 | if (GIMME_V != G_VOID) |
|
|
1354 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1355 | |
|
|
1356 | req = SvAIO_REQ (ST (i)); |
|
|
1357 | |
|
|
1358 | if (req) |
|
|
1359 | { |
|
|
1360 | ++grp->length; |
|
|
1361 | req->grp = grp; |
|
|
1362 | |
|
|
1363 | req->grp_prev = 0; |
|
|
1364 | req->grp_next = grp->grp_first; |
|
|
1365 | |
|
|
1366 | if (grp->grp_first) |
|
|
1367 | grp->grp_first->grp_prev = req; |
|
|
1368 | |
|
|
1369 | grp->grp_first = req; |
|
|
1370 | } |
|
|
1371 | } |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | void |
|
|
1375 | result (aio_req grp, ...) |
|
|
1376 | CODE: |
|
|
1377 | { |
|
|
1378 | int i; |
|
|
1379 | AV *av = newAV (); |
|
|
1380 | |
|
|
1381 | for (i = 1; i < items; ++i ) |
|
|
1382 | av_push (av, newSVsv (ST (i))); |
|
|
1383 | |
|
|
1384 | SvREFCNT_dec (grp->data); |
|
|
1385 | grp->data = (SV *)av; |
|
|
1386 | } |
|
|
1387 | |
|
|
1388 | void |
|
|
1389 | feed_limit (aio_req grp, int limit) |
|
|
1390 | CODE: |
|
|
1391 | grp->fd2 = limit; |
|
|
1392 | aio_grp_feed (grp); |
|
|
1393 | |
|
|
1394 | void |
|
|
1395 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1396 | CODE: |
|
|
1397 | { |
|
|
1398 | SvREFCNT_dec (grp->fh2); |
|
|
1399 | grp->fh2 = newSVsv (callback); |
|
|
1400 | |
|
|
1401 | if (grp->fd2 <= 0) |
|
|
1402 | grp->fd2 = 2; |
|
|
1403 | |
|
|
1404 | aio_grp_feed (grp); |
|
|
1405 | } |
|
|
1406 | |