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1 | #if __linux |
1 | #define _XOPEN_SOURCE 500 |
2 | # define _GNU_SOURCE |
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3 | #endif |
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4 | |
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5 | #define _REENTRANT 1 |
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6 | |
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7 | #include <errno.h> |
2 | |
8 | |
3 | #include "EXTERN.h" |
9 | #include "EXTERN.h" |
4 | #include "perl.h" |
10 | #include "perl.h" |
5 | #include "XSUB.h" |
11 | #include "XSUB.h" |
6 | |
12 | |
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13 | #include "autoconf/config.h" |
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14 | |
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15 | #include <pthread.h> |
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16 | |
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17 | #include <stddef.h> |
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18 | #include <errno.h> |
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19 | #include <sys/time.h> |
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20 | #include <sys/select.h> |
7 | #include <sys/types.h> |
21 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
22 | #include <sys/stat.h> |
9 | |
23 | #include <limits.h> |
10 | #include <unistd.h> |
24 | #include <unistd.h> |
11 | #include <fcntl.h> |
25 | #include <fcntl.h> |
12 | #include <signal.h> |
26 | #include <signal.h> |
13 | #include <sched.h> |
27 | #include <sched.h> |
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28 | |
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29 | #if HAVE_SENDFILE |
14 | #if __linux |
30 | # if __linux |
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31 | # include <sys/sendfile.h> |
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32 | # elif __freebsd |
15 | #include <sys/syscall.h> |
33 | # include <sys/socket.h> |
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34 | # include <sys/uio.h> |
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35 | # elif __hpux |
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36 | # include <sys/socket.h> |
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37 | # elif __solaris /* not yet */ |
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38 | # include <sys/sendfile.h> |
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39 | # else |
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40 | # error sendfile support requested but not available |
16 | #endif |
41 | # endif |
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42 | #endif |
17 | |
43 | |
18 | #include <pthread.h> |
44 | /* used for struct dirent, AIX doesn't provide it */ |
19 | |
45 | #ifndef NAME_MAX |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
46 | # define NAME_MAX 4096 |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
47 | #endif |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
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23 | |
48 | |
24 | #if __ia64 |
49 | #if __ia64 |
25 | # define STACKSIZE 65536 |
50 | # define STACKSIZE 65536 |
26 | #else |
51 | #else |
27 | # define STACKSIZE 4096 |
52 | # define STACKSIZE 8192 |
28 | #endif |
53 | #endif |
29 | |
54 | |
30 | enum { |
55 | enum { |
31 | REQ_QUIT, |
56 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
57 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
58 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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59 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
60 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
61 | REQ_FSYNC, REQ_FDATASYNC, |
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62 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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63 | REQ_READDIR, |
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64 | REQ_LINK, REQ_SYMLINK, |
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65 | REQ_GROUP, REQ_NOP, |
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66 | REQ_SLEEP, |
36 | }; |
67 | }; |
37 | |
68 | |
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69 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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70 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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71 | |
38 | typedef struct aio_cb { |
72 | typedef struct aio_cb |
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73 | { |
39 | struct aio_cb *volatile next; |
74 | struct aio_cb *volatile next; |
40 | |
75 | |
41 | int type; |
76 | SV *data, *callback; |
42 | |
77 | SV *fh, *fh2; |
43 | int fd; |
78 | void *dataptr, *data2ptr; |
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79 | Stat_t *statdata; |
44 | off_t offset; |
80 | off_t offset; |
45 | size_t length; |
81 | size_t length; |
46 | ssize_t result; |
82 | ssize_t result; |
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83 | |
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84 | STRLEN dataoffset; |
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85 | int type; |
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86 | int fd, fd2; |
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87 | int errorno; |
47 | mode_t mode; /* open */ |
88 | mode_t mode; /* open */ |
48 | int errorno; |
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49 | SV *data, *callback; |
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50 | void *dataptr; |
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51 | STRLEN dataoffset; |
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52 | |
89 | |
53 | Stat_t *statdata; |
90 | unsigned char flags; |
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91 | unsigned char pri; |
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92 | |
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93 | SV *self; /* the perl counterpart of this request, if any */ |
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94 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
54 | } aio_cb; |
95 | } aio_cb; |
55 | |
96 | |
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97 | enum { |
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98 | FLAG_CANCELLED = 0x01, |
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99 | }; |
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100 | |
56 | typedef aio_cb *aio_req; |
101 | typedef aio_cb *aio_req; |
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102 | typedef aio_cb *aio_req_ornot; |
57 | |
103 | |
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104 | enum { |
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105 | PRI_MIN = -4, |
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106 | PRI_MAX = 4, |
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107 | |
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108 | DEFAULT_PRI = 0, |
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109 | PRI_BIAS = -PRI_MIN, |
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110 | }; |
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111 | |
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112 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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113 | |
58 | static int started; |
114 | static int started, wanted; |
59 | static volatile int nreqs; |
115 | static volatile int nreqs; |
60 | static int max_outstanding = 1<<30; |
116 | static int max_outstanding = 1<<30; |
61 | static int respipe [2]; |
117 | static int respipe [2]; |
62 | |
118 | |
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119 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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120 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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121 | #else |
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122 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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123 | #endif |
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124 | |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
125 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
126 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
127 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
66 | |
128 | |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
129 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
130 | static volatile aio_req ress, rese; /* queue start, queue end */ |
69 | |
131 | |
70 | static void |
132 | static void req_invoke (aio_req req); |
71 | poll_wait () |
133 | static void req_free (aio_req req); |
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134 | |
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135 | /* must be called at most once */ |
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136 | static SV *req_sv (aio_req req, const char *klass) |
72 | { |
137 | { |
73 | if (nreqs && !ress) |
138 | if (!req->self) |
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139 | { |
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140 | req->self = (SV *)newHV (); |
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141 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
74 | { |
142 | } |
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143 | |
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144 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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145 | } |
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146 | |
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147 | static aio_req SvAIO_REQ (SV *sv) |
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148 | { |
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149 | MAGIC *mg; |
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150 | |
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151 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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152 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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153 | |
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154 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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155 | |
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156 | return mg ? (aio_req)mg->mg_ptr : 0; |
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157 | } |
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158 | |
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159 | static void aio_grp_feed (aio_req grp) |
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160 | { |
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161 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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162 | { |
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163 | int old_len = grp->length; |
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164 | |
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165 | if (grp->fh2 && SvOK (grp->fh2)) |
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166 | { |
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167 | dSP; |
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168 | |
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169 | ENTER; |
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170 | SAVETMPS; |
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171 | PUSHMARK (SP); |
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172 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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173 | PUTBACK; |
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174 | call_sv (grp->fh2, G_VOID | G_EVAL); |
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175 | SPAGAIN; |
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176 | FREETMPS; |
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177 | LEAVE; |
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178 | } |
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179 | |
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180 | /* stop if no progress has been made */ |
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181 | if (old_len == grp->length) |
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182 | { |
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183 | SvREFCNT_dec (grp->fh2); |
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184 | grp->fh2 = 0; |
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185 | break; |
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186 | } |
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187 | } |
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188 | } |
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189 | |
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190 | static void aio_grp_dec (aio_req grp) |
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191 | { |
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192 | --grp->length; |
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193 | |
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194 | /* call feeder, if applicable */ |
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195 | aio_grp_feed (grp); |
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196 | |
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197 | /* finish, if done */ |
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198 | if (!grp->length && grp->fd) |
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199 | { |
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200 | req_invoke (grp); |
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201 | req_free (grp); |
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202 | } |
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203 | } |
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204 | |
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205 | static void poll_wait () |
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206 | { |
75 | fd_set rfd; |
207 | fd_set rfd; |
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208 | |
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209 | while (nreqs) |
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210 | { |
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211 | aio_req req; |
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212 | #if !(__x86 || __x86_64) /* safe without sempahore on this archs */ |
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213 | pthread_mutex_lock (&reslock); |
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214 | #endif |
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215 | req = ress; |
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216 | #if !(__x86 || __x86_64) /* safe without sempahore on this archs */ |
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217 | pthread_mutex_unlock (&reslock); |
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218 | #endif |
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219 | |
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220 | if (req) |
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221 | return; |
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222 | |
76 | FD_ZERO(&rfd); |
223 | FD_ZERO(&rfd); |
77 | FD_SET(respipe [0], &rfd); |
224 | FD_SET(respipe [0], &rfd); |
78 | |
225 | |
79 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
226 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
80 | } |
227 | } |
81 | } |
228 | } |
82 | |
229 | |
83 | static int |
230 | static void req_invoke (aio_req req) |
84 | poll_cb () |
231 | { |
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232 | dSP; |
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233 | int errorno = errno; |
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234 | |
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235 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
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236 | return; |
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237 | |
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238 | errno = req->errorno; |
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239 | |
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240 | ENTER; |
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241 | SAVETMPS; |
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242 | PUSHMARK (SP); |
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243 | EXTEND (SP, 1); |
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244 | |
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245 | switch (req->type) |
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246 | { |
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247 | case REQ_READDIR: |
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248 | { |
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249 | SV *rv = &PL_sv_undef; |
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250 | |
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251 | if (req->result >= 0) |
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252 | { |
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253 | char *buf = req->data2ptr; |
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254 | AV *av = newAV (); |
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255 | |
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256 | while (req->result) |
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257 | { |
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258 | SV *sv = newSVpv (buf, 0); |
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259 | |
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260 | av_push (av, sv); |
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261 | buf += SvCUR (sv) + 1; |
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262 | req->result--; |
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263 | } |
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264 | |
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265 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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266 | } |
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267 | |
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268 | PUSHs (rv); |
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269 | } |
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270 | break; |
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271 | |
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272 | case REQ_OPEN: |
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273 | { |
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274 | /* convert fd to fh */ |
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275 | SV *fh; |
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276 | |
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277 | PUSHs (sv_2mortal (newSViv (req->result))); |
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278 | PUTBACK; |
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279 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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280 | SPAGAIN; |
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281 | |
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282 | fh = SvREFCNT_inc (POPs); |
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283 | |
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284 | PUSHMARK (SP); |
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285 | XPUSHs (sv_2mortal (fh)); |
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286 | } |
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287 | break; |
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288 | |
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289 | case REQ_GROUP: |
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290 | req->fd = 2; /* mark group as finished */ |
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291 | |
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292 | if (req->data) |
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293 | { |
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294 | int i; |
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295 | AV *av = (AV *)req->data; |
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296 | |
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297 | EXTEND (SP, AvFILL (av) + 1); |
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298 | for (i = 0; i <= AvFILL (av); ++i) |
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299 | PUSHs (*av_fetch (av, i, 0)); |
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300 | } |
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301 | break; |
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302 | |
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303 | case REQ_NOP: |
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304 | case REQ_SLEEP: |
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305 | break; |
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306 | |
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307 | default: |
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308 | PUSHs (sv_2mortal (newSViv (req->result))); |
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309 | break; |
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310 | } |
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311 | |
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312 | |
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313 | PUTBACK; |
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314 | call_sv (req->callback, G_VOID | G_EVAL); |
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315 | SPAGAIN; |
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316 | |
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317 | FREETMPS; |
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318 | LEAVE; |
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319 | |
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320 | errno = errorno; |
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321 | |
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322 | if (SvTRUE (ERRSV)) |
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323 | { |
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324 | req_free (req); |
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325 | croak (0); |
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326 | } |
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327 | } |
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328 | |
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329 | static void req_free (aio_req req) |
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330 | { |
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331 | if (req->grp) |
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332 | { |
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333 | aio_req grp = req->grp; |
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334 | |
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335 | /* unlink request */ |
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336 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
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337 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
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338 | |
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339 | if (grp->grp_first == req) |
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340 | grp->grp_first = req->grp_next; |
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341 | |
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342 | aio_grp_dec (grp); |
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343 | } |
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344 | |
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345 | if (req->self) |
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346 | { |
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347 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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348 | SvREFCNT_dec (req->self); |
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349 | } |
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350 | |
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351 | SvREFCNT_dec (req->data); |
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352 | SvREFCNT_dec (req->fh); |
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353 | SvREFCNT_dec (req->fh2); |
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354 | SvREFCNT_dec (req->callback); |
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355 | Safefree (req->statdata); |
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356 | |
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357 | if (req->type == REQ_READDIR && req->result >= 0) |
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358 | free (req->data2ptr); |
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359 | |
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360 | Safefree (req); |
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361 | } |
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362 | |
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363 | static void req_cancel (aio_req req) |
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364 | { |
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365 | req->flags |= FLAG_CANCELLED; |
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366 | |
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367 | if (req->type == REQ_GROUP) |
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368 | { |
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369 | aio_req sub; |
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370 | |
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371 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
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372 | req_cancel (sub); |
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373 | } |
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374 | } |
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375 | |
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376 | static int poll_cb () |
85 | { |
377 | { |
86 | dSP; |
378 | dSP; |
87 | int count = 0; |
379 | int count = 0; |
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380 | int do_croak = 0; |
88 | aio_req req, prv; |
381 | aio_req req; |
89 | |
382 | |
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383 | for (;;) |
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384 | { |
90 | pthread_mutex_lock (&reslock); |
385 | pthread_mutex_lock (&reslock); |
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386 | req = ress; |
91 | |
387 | |
92 | { |
388 | if (req) |
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389 | { |
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390 | ress = req->next; |
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391 | |
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392 | if (!ress) |
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393 | { |
93 | /* read any signals sent by the worker threads */ |
394 | /* read any signals sent by the worker threads */ |
94 | char buf [32]; |
395 | char buf [32]; |
95 | while (read (respipe [0], buf, 32) > 0) |
396 | while (read (respipe [0], buf, 32) == 32) |
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397 | ; |
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398 | |
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399 | rese = 0; |
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400 | } |
96 | ; |
401 | } |
97 | } |
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98 | |
402 | |
99 | req = ress; |
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100 | ress = rese = 0; |
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101 | |
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102 | pthread_mutex_unlock (&reslock); |
403 | pthread_mutex_unlock (&reslock); |
103 | |
404 | |
104 | while (req) |
405 | if (!req) |
105 | { |
406 | break; |
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407 | |
106 | nreqs--; |
408 | --nreqs; |
107 | |
409 | |
108 | if (req->type == REQ_QUIT) |
410 | if (req->type == REQ_QUIT) |
109 | started--; |
411 | started--; |
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412 | else if (req->type == REQ_GROUP && req->length) |
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413 | { |
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414 | req->fd = 1; /* mark request as delayed */ |
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415 | continue; |
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416 | } |
110 | else |
417 | else |
111 | { |
418 | { |
112 | int errorno = errno; |
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113 | errno = req->errorno; |
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114 | |
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115 | if (req->type == REQ_READ) |
419 | if (req->type == REQ_READ) |
116 | SvCUR_set (req->data, req->dataoffset |
420 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
117 | + req->result > 0 ? req->result : 0); |
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118 | |
421 | |
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422 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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423 | SvREADONLY_off (req->data); |
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424 | |
119 | if (req->data) |
425 | if (req->statdata) |
120 | SvREFCNT_dec (req->data); |
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121 | |
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122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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|
123 | { |
426 | { |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
427 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
125 | PL_laststatval = req->result; |
428 | PL_laststatval = req->result; |
126 | PL_statcache = *(req->statdata); |
429 | PL_statcache = *(req->statdata); |
127 | |
|
|
128 | Safefree (req->statdata); |
|
|
129 | } |
430 | } |
130 | |
431 | |
131 | PUSHMARK (SP); |
432 | req_invoke (req); |
132 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
133 | |
433 | |
134 | if (req->type == REQ_OPEN) |
|
|
135 | { |
|
|
136 | /* convert fd to fh */ |
|
|
137 | SV *fh; |
|
|
138 | |
|
|
139 | PUTBACK; |
|
|
140 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
141 | SPAGAIN; |
|
|
142 | |
|
|
143 | fh = POPs; |
|
|
144 | |
|
|
145 | PUSHMARK (SP); |
|
|
146 | XPUSHs (fh); |
|
|
147 | } |
|
|
148 | |
|
|
149 | if (SvOK (req->callback)) |
|
|
150 | { |
|
|
151 | PUTBACK; |
|
|
152 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
153 | SPAGAIN; |
|
|
154 | } |
|
|
155 | |
|
|
156 | if (req->callback) |
|
|
157 | SvREFCNT_dec (req->callback); |
|
|
158 | |
|
|
159 | errno = errorno; |
|
|
160 | count++; |
434 | count++; |
161 | } |
435 | } |
162 | |
436 | |
163 | prv = req; |
|
|
164 | req = req->next; |
|
|
165 | Safefree (prv); |
437 | req_free (req); |
166 | |
|
|
167 | /* TODO: croak on errors? */ |
|
|
168 | } |
438 | } |
169 | |
439 | |
170 | return count; |
440 | return count; |
171 | } |
441 | } |
172 | |
442 | |
173 | static void *aio_proc(void *arg); |
443 | static void *aio_proc(void *arg); |
174 | |
444 | |
175 | static void |
|
|
176 | start_thread (void) |
445 | static void start_thread (void) |
177 | { |
446 | { |
178 | sigset_t fullsigset, oldsigset; |
447 | sigset_t fullsigset, oldsigset; |
179 | pthread_t tid; |
448 | pthread_t tid; |
180 | pthread_attr_t attr; |
449 | pthread_attr_t attr; |
181 | |
450 | |
… | |
… | |
190 | started++; |
459 | started++; |
191 | |
460 | |
192 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
461 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
193 | } |
462 | } |
194 | |
463 | |
195 | static void |
464 | static void req_send (aio_req req) |
196 | send_req (aio_req req) |
|
|
197 | { |
465 | { |
|
|
466 | while (started < wanted && nreqs >= started) |
|
|
467 | start_thread (); |
|
|
468 | |
198 | nreqs++; |
469 | ++nreqs; |
199 | |
470 | |
200 | pthread_mutex_lock (&reqlock); |
471 | pthread_mutex_lock (&reqlock); |
201 | |
472 | |
202 | req->next = 0; |
473 | req->next = 0; |
203 | |
474 | |
… | |
… | |
210 | reqe = reqs = req; |
481 | reqe = reqs = req; |
211 | |
482 | |
212 | pthread_cond_signal (&reqwait); |
483 | pthread_cond_signal (&reqwait); |
213 | pthread_mutex_unlock (&reqlock); |
484 | pthread_mutex_unlock (&reqlock); |
214 | |
485 | |
215 | while (nreqs > max_outstanding) |
486 | if (nreqs > max_outstanding) |
|
|
487 | for (;;) |
|
|
488 | { |
|
|
489 | poll_cb (); |
|
|
490 | |
|
|
491 | if (nreqs <= max_outstanding) |
|
|
492 | break; |
|
|
493 | |
|
|
494 | poll_wait (); |
|
|
495 | } |
|
|
496 | } |
|
|
497 | |
|
|
498 | static void end_thread (void) |
|
|
499 | { |
|
|
500 | aio_req req; |
|
|
501 | Newz (0, req, 1, aio_cb); |
|
|
502 | req->type = REQ_QUIT; |
|
|
503 | |
|
|
504 | req_send (req); |
|
|
505 | } |
|
|
506 | |
|
|
507 | static void min_parallel (int nthreads) |
|
|
508 | { |
|
|
509 | if (wanted < nthreads) |
|
|
510 | wanted = nthreads; |
|
|
511 | } |
|
|
512 | |
|
|
513 | static void max_parallel (int nthreads) |
|
|
514 | { |
|
|
515 | int cur = started; |
|
|
516 | |
|
|
517 | if (wanted > nthreads) |
|
|
518 | wanted = nthreads; |
|
|
519 | |
|
|
520 | while (cur > wanted) |
|
|
521 | { |
|
|
522 | end_thread (); |
|
|
523 | cur--; |
|
|
524 | } |
|
|
525 | |
|
|
526 | while (started > wanted) |
216 | { |
527 | { |
217 | poll_wait (); |
528 | poll_wait (); |
218 | poll_cb (); |
529 | poll_cb (); |
219 | } |
530 | } |
220 | } |
531 | } |
221 | |
532 | |
222 | static void |
533 | static void create_pipe () |
223 | end_thread (void) |
|
|
224 | { |
534 | { |
225 | aio_req req; |
535 | if (pipe (respipe)) |
226 | New (0, req, 1, aio_cb); |
536 | croak ("unable to initialize result pipe"); |
227 | req->type = REQ_QUIT; |
|
|
228 | |
537 | |
229 | send_req (req); |
538 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
230 | } |
539 | croak ("cannot set result pipe to nonblocking mode"); |
231 | |
540 | |
232 | static void |
541 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
233 | read_write (int dowrite, int fd, off_t offset, size_t length, |
542 | croak ("cannot set result pipe to nonblocking mode"); |
234 | SV *data, STRLEN dataoffset, SV *callback) |
543 | } |
235 | { |
|
|
236 | aio_req req; |
|
|
237 | STRLEN svlen; |
|
|
238 | char *svptr = SvPV (data, svlen); |
|
|
239 | |
544 | |
240 | SvUPGRADE (data, SVt_PV); |
545 | /*****************************************************************************/ |
241 | SvPOK_on (data); |
546 | /* work around various missing functions */ |
242 | |
547 | |
243 | if (dataoffset < 0) |
548 | #if !HAVE_PREADWRITE |
|
|
549 | # define pread aio_pread |
|
|
550 | # define pwrite aio_pwrite |
|
|
551 | |
|
|
552 | /* |
|
|
553 | * make our pread/pwrite safe against themselves, but not against |
|
|
554 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
555 | * but that's your problem, not mine. |
|
|
556 | */ |
|
|
557 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
558 | |
|
|
559 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
560 | { |
|
|
561 | ssize_t res; |
|
|
562 | off_t ooffset; |
|
|
563 | |
|
|
564 | pthread_mutex_lock (&preadwritelock); |
|
|
565 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
566 | lseek (fd, offset, SEEK_SET); |
|
|
567 | res = read (fd, buf, count); |
|
|
568 | lseek (fd, ooffset, SEEK_SET); |
|
|
569 | pthread_mutex_unlock (&preadwritelock); |
|
|
570 | |
|
|
571 | return res; |
|
|
572 | } |
|
|
573 | |
|
|
574 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
575 | { |
|
|
576 | ssize_t res; |
|
|
577 | off_t ooffset; |
|
|
578 | |
|
|
579 | pthread_mutex_lock (&preadwritelock); |
|
|
580 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
581 | lseek (fd, offset, SEEK_SET); |
|
|
582 | res = write (fd, buf, count); |
|
|
583 | lseek (fd, offset, SEEK_SET); |
|
|
584 | pthread_mutex_unlock (&preadwritelock); |
|
|
585 | |
|
|
586 | return res; |
|
|
587 | } |
|
|
588 | #endif |
|
|
589 | |
|
|
590 | #if !HAVE_FDATASYNC |
|
|
591 | # define fdatasync fsync |
|
|
592 | #endif |
|
|
593 | |
|
|
594 | #if !HAVE_READAHEAD |
|
|
595 | # define readahead aio_readahead |
|
|
596 | |
|
|
597 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
598 | { |
|
|
599 | char readahead_buf[4096]; |
|
|
600 | |
|
|
601 | while (count > 0) |
|
|
602 | { |
|
|
603 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
604 | |
|
|
605 | pread (fd, readahead_buf, len, offset); |
244 | dataoffset += svlen; |
606 | offset += len; |
245 | |
607 | count -= len; |
246 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
247 | croak ("data offset outside of string"); |
|
|
248 | |
|
|
249 | if (dowrite) |
|
|
250 | { |
608 | } |
251 | /* write: check length and adjust. */ |
609 | |
252 | if (length < 0 || length + dataoffset > svlen) |
610 | errno = 0; |
253 | length = svlen - dataoffset; |
611 | } |
|
|
612 | #endif |
|
|
613 | |
|
|
614 | #if !HAVE_READDIR_R |
|
|
615 | # define readdir_r aio_readdir_r |
|
|
616 | |
|
|
617 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
618 | |
|
|
619 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
620 | { |
|
|
621 | struct dirent *e; |
|
|
622 | int errorno; |
|
|
623 | |
|
|
624 | pthread_mutex_lock (&readdirlock); |
|
|
625 | |
|
|
626 | e = readdir (dirp); |
|
|
627 | errorno = errno; |
|
|
628 | |
|
|
629 | if (e) |
|
|
630 | { |
|
|
631 | *res = ent; |
|
|
632 | strcpy (ent->d_name, e->d_name); |
254 | } |
633 | } |
255 | else |
634 | else |
|
|
635 | *res = 0; |
|
|
636 | |
|
|
637 | pthread_mutex_unlock (&readdirlock); |
|
|
638 | |
|
|
639 | errno = errorno; |
|
|
640 | return e ? 0 : -1; |
|
|
641 | } |
|
|
642 | #endif |
|
|
643 | |
|
|
644 | /* sendfile always needs emulation */ |
|
|
645 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
646 | { |
|
|
647 | ssize_t res; |
|
|
648 | |
|
|
649 | if (!count) |
|
|
650 | return 0; |
|
|
651 | |
|
|
652 | #if HAVE_SENDFILE |
|
|
653 | # if __linux |
|
|
654 | res = sendfile (ofd, ifd, &offset, count); |
|
|
655 | |
|
|
656 | # elif __freebsd |
|
|
657 | /* |
|
|
658 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
659 | * wasted on making it similar to other I/O functions. |
|
|
660 | */ |
256 | { |
661 | { |
257 | /* read: grow scalar as necessary */ |
662 | off_t sbytes; |
258 | svptr = SvGROW (data, length + dataoffset); |
663 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
664 | |
|
|
665 | if (res < 0 && sbytes) |
|
|
666 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
667 | res = sbytes; |
|
|
668 | } |
|
|
669 | |
|
|
670 | # elif __hpux |
|
|
671 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
672 | |
|
|
673 | # elif __solaris |
|
|
674 | { |
|
|
675 | struct sendfilevec vec; |
|
|
676 | size_t sbytes; |
|
|
677 | |
|
|
678 | vec.sfv_fd = ifd; |
|
|
679 | vec.sfv_flag = 0; |
|
|
680 | vec.sfv_off = offset; |
|
|
681 | vec.sfv_len = count; |
|
|
682 | |
|
|
683 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
684 | |
|
|
685 | if (res < 0 && sbytes) |
|
|
686 | res = sbytes; |
|
|
687 | } |
|
|
688 | |
|
|
689 | # endif |
|
|
690 | #else |
|
|
691 | res = -1; |
|
|
692 | errno = ENOSYS; |
|
|
693 | #endif |
|
|
694 | |
|
|
695 | if (res < 0 |
|
|
696 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
697 | #if __solaris |
|
|
698 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
699 | #endif |
|
|
700 | ) |
|
|
701 | ) |
259 | } |
702 | { |
|
|
703 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
704 | char buf[4096]; |
|
|
705 | res = 0; |
260 | |
706 | |
261 | if (length < 0) |
707 | while (count) |
262 | croak ("length must not be negative"); |
708 | { |
|
|
709 | ssize_t cnt; |
|
|
710 | |
|
|
711 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
263 | |
712 | |
264 | Newz (0, req, 1, aio_cb); |
713 | if (cnt <= 0) |
|
|
714 | { |
|
|
715 | if (cnt && !res) res = -1; |
|
|
716 | break; |
|
|
717 | } |
265 | |
718 | |
|
|
719 | cnt = write (ofd, buf, cnt); |
|
|
720 | |
|
|
721 | if (cnt <= 0) |
|
|
722 | { |
|
|
723 | if (cnt && !res) res = -1; |
|
|
724 | break; |
|
|
725 | } |
|
|
726 | |
|
|
727 | offset += cnt; |
|
|
728 | res += cnt; |
|
|
729 | count -= cnt; |
|
|
730 | } |
|
|
731 | } |
|
|
732 | |
|
|
733 | return res; |
|
|
734 | } |
|
|
735 | |
|
|
736 | /* read a full directory */ |
|
|
737 | static int scandir_ (const char *path, void **namesp) |
|
|
738 | { |
|
|
739 | DIR *dirp = opendir (path); |
|
|
740 | union |
|
|
741 | { |
|
|
742 | struct dirent d; |
|
|
743 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
744 | } u; |
|
|
745 | struct dirent *entp; |
|
|
746 | char *name, *names; |
|
|
747 | int memlen = 4096; |
|
|
748 | int memofs = 0; |
|
|
749 | int res = 0; |
|
|
750 | int errorno; |
|
|
751 | |
266 | if (!req) |
752 | if (!dirp) |
267 | croak ("out of memory during aio_req allocation"); |
753 | return -1; |
268 | |
754 | |
269 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
755 | names = malloc (memlen); |
270 | req->fd = fd; |
|
|
271 | req->offset = offset; |
|
|
272 | req->length = length; |
|
|
273 | req->data = SvREFCNT_inc (data); |
|
|
274 | req->dataptr = (char *)svptr + dataoffset; |
|
|
275 | req->callback = SvREFCNT_inc (callback); |
|
|
276 | |
756 | |
277 | send_req (req); |
757 | for (;;) |
278 | } |
758 | { |
|
|
759 | errno = 0, readdir_r (dirp, &u.d, &entp); |
279 | |
760 | |
280 | static void * |
761 | if (!entp) |
|
|
762 | break; |
|
|
763 | |
|
|
764 | name = entp->d_name; |
|
|
765 | |
|
|
766 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
767 | { |
|
|
768 | int len = strlen (name) + 1; |
|
|
769 | |
|
|
770 | res++; |
|
|
771 | |
|
|
772 | while (memofs + len > memlen) |
|
|
773 | { |
|
|
774 | memlen *= 2; |
|
|
775 | names = realloc (names, memlen); |
|
|
776 | if (!names) |
|
|
777 | break; |
|
|
778 | } |
|
|
779 | |
|
|
780 | memcpy (names + memofs, name, len); |
|
|
781 | memofs += len; |
|
|
782 | } |
|
|
783 | } |
|
|
784 | |
|
|
785 | errorno = errno; |
|
|
786 | closedir (dirp); |
|
|
787 | |
|
|
788 | if (errorno) |
|
|
789 | { |
|
|
790 | free (names); |
|
|
791 | errno = errorno; |
|
|
792 | res = -1; |
|
|
793 | } |
|
|
794 | |
|
|
795 | *namesp = (void *)names; |
|
|
796 | return res; |
|
|
797 | } |
|
|
798 | |
|
|
799 | /*****************************************************************************/ |
|
|
800 | |
281 | aio_proc (void *thr_arg) |
801 | static void *aio_proc (void *thr_arg) |
282 | { |
802 | { |
283 | aio_req req; |
803 | aio_req req; |
284 | int type; |
804 | int type; |
285 | |
805 | |
286 | do |
806 | do |
… | |
… | |
304 | } |
824 | } |
305 | |
825 | |
306 | pthread_mutex_unlock (&reqlock); |
826 | pthread_mutex_unlock (&reqlock); |
307 | |
827 | |
308 | errno = 0; /* strictly unnecessary */ |
828 | errno = 0; /* strictly unnecessary */ |
|
|
829 | type = req->type; /* remember type for QUIT check */ |
309 | |
830 | |
310 | type = req->type; |
831 | if (!(req->flags & FLAG_CANCELLED)) |
311 | |
|
|
312 | switch (type) |
832 | switch (type) |
313 | { |
833 | { |
314 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
834 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
315 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
835 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
316 | #if SYS_readahead |
836 | |
317 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
837 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
318 | #else |
838 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
319 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
320 | #endif |
|
|
321 | |
839 | |
322 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
840 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
323 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
841 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
324 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
842 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
325 | |
843 | |
326 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
844 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
327 | case REQ_CLOSE: req->result = close (req->fd); break; |
845 | case REQ_CLOSE: req->result = close (req->fd); break; |
328 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
846 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
329 | |
|
|
330 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
847 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
848 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
849 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
850 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
851 | |
331 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
852 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
853 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
854 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
332 | |
855 | |
|
|
856 | case REQ_SLEEP: |
|
|
857 | { |
|
|
858 | struct timeval tv; |
|
|
859 | |
|
|
860 | tv.tv_sec = req->fd; |
|
|
861 | tv.tv_usec = req->fd2; |
|
|
862 | |
|
|
863 | req->result = select (0, 0, 0, 0, &tv); |
|
|
864 | } |
|
|
865 | |
|
|
866 | case REQ_GROUP: |
|
|
867 | case REQ_NOP: |
333 | case REQ_QUIT: |
868 | case REQ_QUIT: |
334 | break; |
869 | break; |
335 | |
870 | |
336 | default: |
871 | default: |
337 | req->result = ENOSYS; |
872 | req->result = ENOSYS; |
338 | break; |
873 | break; |
339 | } |
874 | } |
340 | |
875 | |
341 | req->errorno = errno; |
876 | req->errorno = errno; |
342 | |
877 | |
343 | pthread_mutex_lock (&reslock); |
878 | pthread_mutex_lock (&reslock); |
344 | |
879 | |
… | |
… | |
362 | while (type != REQ_QUIT); |
897 | while (type != REQ_QUIT); |
363 | |
898 | |
364 | return 0; |
899 | return 0; |
365 | } |
900 | } |
366 | |
901 | |
|
|
902 | /*****************************************************************************/ |
|
|
903 | |
|
|
904 | static void atfork_prepare (void) |
|
|
905 | { |
|
|
906 | pthread_mutex_lock (&reqlock); |
|
|
907 | pthread_mutex_lock (&reslock); |
|
|
908 | #if !HAVE_PREADWRITE |
|
|
909 | pthread_mutex_lock (&preadwritelock); |
|
|
910 | #endif |
|
|
911 | #if !HAVE_READDIR_R |
|
|
912 | pthread_mutex_lock (&readdirlock); |
|
|
913 | #endif |
|
|
914 | } |
|
|
915 | |
|
|
916 | static void atfork_parent (void) |
|
|
917 | { |
|
|
918 | #if !HAVE_READDIR_R |
|
|
919 | pthread_mutex_unlock (&readdirlock); |
|
|
920 | #endif |
|
|
921 | #if !HAVE_PREADWRITE |
|
|
922 | pthread_mutex_unlock (&preadwritelock); |
|
|
923 | #endif |
|
|
924 | pthread_mutex_unlock (&reslock); |
|
|
925 | pthread_mutex_unlock (&reqlock); |
|
|
926 | } |
|
|
927 | |
|
|
928 | static void atfork_child (void) |
|
|
929 | { |
|
|
930 | aio_req prv; |
|
|
931 | |
|
|
932 | started = 0; |
|
|
933 | |
|
|
934 | while (reqs) |
|
|
935 | { |
|
|
936 | prv = reqs; |
|
|
937 | reqs = prv->next; |
|
|
938 | req_free (prv); |
|
|
939 | } |
|
|
940 | |
|
|
941 | reqs = reqe = 0; |
|
|
942 | |
|
|
943 | while (ress) |
|
|
944 | { |
|
|
945 | prv = ress; |
|
|
946 | ress = prv->next; |
|
|
947 | req_free (prv); |
|
|
948 | } |
|
|
949 | |
|
|
950 | ress = rese = 0; |
|
|
951 | |
|
|
952 | close (respipe [0]); |
|
|
953 | close (respipe [1]); |
|
|
954 | create_pipe (); |
|
|
955 | |
|
|
956 | atfork_parent (); |
|
|
957 | } |
|
|
958 | |
|
|
959 | #define dREQ \ |
|
|
960 | aio_req req; \ |
|
|
961 | int req_pri = next_pri; \ |
|
|
962 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
963 | \ |
|
|
964 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
965 | croak ("callback must be undef or of reference type"); \ |
|
|
966 | \ |
|
|
967 | Newz (0, req, 1, aio_cb); \ |
|
|
968 | if (!req) \ |
|
|
969 | croak ("out of memory during aio_req allocation"); \ |
|
|
970 | \ |
|
|
971 | req->callback = newSVsv (callback); \ |
|
|
972 | req->pri = req_pri |
|
|
973 | |
|
|
974 | #define REQ_SEND \ |
|
|
975 | req_send (req); \ |
|
|
976 | \ |
|
|
977 | if (GIMME_V != G_VOID) \ |
|
|
978 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
979 | |
367 | MODULE = IO::AIO PACKAGE = IO::AIO |
980 | MODULE = IO::AIO PACKAGE = IO::AIO |
368 | |
981 | |
369 | PROTOTYPES: ENABLE |
982 | PROTOTYPES: ENABLE |
370 | |
983 | |
371 | BOOT: |
984 | BOOT: |
372 | { |
985 | { |
373 | if (pipe (respipe)) |
986 | HV *stash = gv_stashpv ("IO::AIO", 1); |
374 | croak ("unable to initialize result pipe"); |
987 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
988 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
989 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
375 | |
990 | |
376 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
991 | create_pipe (); |
377 | croak ("cannot set result pipe to nonblocking mode"); |
992 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
378 | |
|
|
379 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
380 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
381 | } |
993 | } |
382 | |
994 | |
383 | void |
995 | void |
384 | min_parallel(nthreads) |
996 | min_parallel (nthreads) |
385 | int nthreads |
997 | int nthreads |
386 | PROTOTYPE: $ |
998 | PROTOTYPE: $ |
387 | CODE: |
|
|
388 | while (nthreads > started) |
|
|
389 | start_thread (); |
|
|
390 | |
999 | |
391 | void |
1000 | void |
392 | max_parallel(nthreads) |
1001 | max_parallel (nthreads) |
393 | int nthreads |
1002 | int nthreads |
394 | PROTOTYPE: $ |
1003 | PROTOTYPE: $ |
395 | CODE: |
|
|
396 | { |
|
|
397 | int cur = started; |
|
|
398 | while (cur > nthreads) |
|
|
399 | { |
|
|
400 | end_thread (); |
|
|
401 | cur--; |
|
|
402 | } |
|
|
403 | |
|
|
404 | while (started > nthreads) |
|
|
405 | { |
|
|
406 | poll_wait (); |
|
|
407 | poll_cb (); |
|
|
408 | } |
|
|
409 | } |
|
|
410 | |
1004 | |
411 | int |
1005 | int |
412 | max_outstanding(nreqs) |
1006 | max_outstanding (nreqs) |
413 | int nreqs |
1007 | int nreqs |
414 | PROTOTYPE: $ |
1008 | PROTOTYPE: $ |
415 | CODE: |
1009 | CODE: |
416 | RETVAL = max_outstanding; |
1010 | RETVAL = max_outstanding; |
417 | max_outstanding = nreqs; |
1011 | max_outstanding = nreqs; |
418 | |
1012 | |
419 | void |
1013 | void |
420 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1014 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
421 | SV * pathname |
1015 | SV * pathname |
422 | int flags |
1016 | int flags |
423 | int mode |
1017 | int mode |
424 | SV * callback |
1018 | SV * callback |
425 | PROTOTYPE: $$$;$ |
1019 | PROTOTYPE: $$$;$ |
426 | CODE: |
1020 | PPCODE: |
427 | { |
1021 | { |
428 | aio_req req; |
1022 | dREQ; |
429 | |
|
|
430 | Newz (0, req, 1, aio_cb); |
|
|
431 | |
|
|
432 | if (!req) |
|
|
433 | croak ("out of memory during aio_req allocation"); |
|
|
434 | |
1023 | |
435 | req->type = REQ_OPEN; |
1024 | req->type = REQ_OPEN; |
436 | req->data = newSVsv (pathname); |
1025 | req->data = newSVsv (pathname); |
437 | req->dataptr = SvPV_nolen (req->data); |
1026 | req->dataptr = SvPVbyte_nolen (req->data); |
438 | req->fd = flags; |
1027 | req->fd = flags; |
439 | req->mode = mode; |
1028 | req->mode = mode; |
440 | req->callback = SvREFCNT_inc (callback); |
|
|
441 | |
1029 | |
442 | send_req (req); |
1030 | REQ_SEND; |
443 | } |
1031 | } |
444 | |
1032 | |
445 | void |
1033 | void |
446 | aio_close(fh,callback=&PL_sv_undef) |
1034 | aio_close (fh,callback=&PL_sv_undef) |
447 | InputStream fh |
1035 | SV * fh |
448 | SV * callback |
1036 | SV * callback |
449 | PROTOTYPE: $;$ |
1037 | PROTOTYPE: $;$ |
450 | ALIAS: |
1038 | ALIAS: |
451 | aio_close = REQ_CLOSE |
1039 | aio_close = REQ_CLOSE |
452 | aio_fsync = REQ_FSYNC |
1040 | aio_fsync = REQ_FSYNC |
453 | aio_fdatasync = REQ_FDATASYNC |
1041 | aio_fdatasync = REQ_FDATASYNC |
454 | CODE: |
1042 | PPCODE: |
|
|
1043 | { |
|
|
1044 | dREQ; |
|
|
1045 | |
|
|
1046 | req->type = ix; |
|
|
1047 | req->fh = newSVsv (fh); |
|
|
1048 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
1049 | |
|
|
1050 | REQ_SEND (req); |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | void |
|
|
1054 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
1055 | SV * fh |
|
|
1056 | UV offset |
|
|
1057 | UV length |
|
|
1058 | SV * data |
|
|
1059 | UV dataoffset |
|
|
1060 | SV * callback |
|
|
1061 | ALIAS: |
|
|
1062 | aio_read = REQ_READ |
|
|
1063 | aio_write = REQ_WRITE |
|
|
1064 | PROTOTYPE: $$$$$;$ |
|
|
1065 | PPCODE: |
455 | { |
1066 | { |
456 | aio_req req; |
1067 | aio_req req; |
|
|
1068 | STRLEN svlen; |
|
|
1069 | char *svptr = SvPVbyte (data, svlen); |
457 | |
1070 | |
458 | Newz (0, req, 1, aio_cb); |
1071 | SvUPGRADE (data, SVt_PV); |
|
|
1072 | SvPOK_on (data); |
459 | |
1073 | |
460 | if (!req) |
1074 | if (dataoffset < 0) |
461 | croak ("out of memory during aio_req allocation"); |
1075 | dataoffset += svlen; |
462 | |
1076 | |
463 | req->type = ix; |
1077 | if (dataoffset < 0 || dataoffset > svlen) |
464 | req->fd = PerlIO_fileno (fh); |
1078 | croak ("data offset outside of string"); |
465 | req->callback = SvREFCNT_inc (callback); |
|
|
466 | |
1079 | |
467 | send_req (req); |
1080 | if (ix == REQ_WRITE) |
468 | } |
1081 | { |
469 | |
1082 | /* write: check length and adjust. */ |
470 | void |
1083 | if (length < 0 || length + dataoffset > svlen) |
471 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1084 | length = svlen - dataoffset; |
472 | InputStream fh |
1085 | } |
473 | UV offset |
1086 | else |
474 | IV length |
1087 | { |
475 | SV * data |
1088 | /* read: grow scalar as necessary */ |
476 | IV dataoffset |
1089 | svptr = SvGROW (data, length + dataoffset); |
477 | SV * callback |
1090 | } |
478 | PROTOTYPE: $$$$$;$ |
|
|
479 | CODE: |
|
|
480 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
481 | |
|
|
482 | void |
|
|
483 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
484 | OutputStream fh |
|
|
485 | UV offset |
|
|
486 | IV length |
|
|
487 | SV * data |
|
|
488 | IV dataoffset |
|
|
489 | SV * callback |
|
|
490 | PROTOTYPE: $$$$$;$ |
|
|
491 | CODE: |
|
|
492 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
493 | |
|
|
494 | void |
|
|
495 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
496 | InputStream fh |
|
|
497 | UV offset |
|
|
498 | IV length |
|
|
499 | SV * callback |
|
|
500 | PROTOTYPE: $$$;$ |
|
|
501 | CODE: |
|
|
502 | { |
|
|
503 | aio_req req; |
|
|
504 | |
1091 | |
505 | if (length < 0) |
1092 | if (length < 0) |
506 | croak ("length must not be negative"); |
1093 | croak ("length must not be negative"); |
507 | |
1094 | |
508 | Newz (0, req, 1, aio_cb); |
1095 | { |
|
|
1096 | dREQ; |
509 | |
1097 | |
510 | if (!req) |
1098 | req->type = ix; |
511 | croak ("out of memory during aio_req allocation"); |
1099 | req->fh = newSVsv (fh); |
|
|
1100 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
1101 | : IoOFP (sv_2io (fh))); |
|
|
1102 | req->offset = offset; |
|
|
1103 | req->length = length; |
|
|
1104 | req->data = SvREFCNT_inc (data); |
|
|
1105 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1106 | |
|
|
1107 | if (!SvREADONLY (data)) |
|
|
1108 | { |
|
|
1109 | SvREADONLY_on (data); |
|
|
1110 | req->data2ptr = (void *)data; |
|
|
1111 | } |
|
|
1112 | |
|
|
1113 | REQ_SEND; |
|
|
1114 | } |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | void |
|
|
1118 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1119 | SV * out_fh |
|
|
1120 | SV * in_fh |
|
|
1121 | UV in_offset |
|
|
1122 | UV length |
|
|
1123 | SV * callback |
|
|
1124 | PROTOTYPE: $$$$;$ |
|
|
1125 | PPCODE: |
|
|
1126 | { |
|
|
1127 | dREQ; |
|
|
1128 | |
|
|
1129 | req->type = REQ_SENDFILE; |
|
|
1130 | req->fh = newSVsv (out_fh); |
|
|
1131 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1132 | req->fh2 = newSVsv (in_fh); |
|
|
1133 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1134 | req->offset = in_offset; |
|
|
1135 | req->length = length; |
|
|
1136 | |
|
|
1137 | REQ_SEND; |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | void |
|
|
1141 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
|
|
1142 | SV * fh |
|
|
1143 | UV offset |
|
|
1144 | IV length |
|
|
1145 | SV * callback |
|
|
1146 | PROTOTYPE: $$$;$ |
|
|
1147 | PPCODE: |
|
|
1148 | { |
|
|
1149 | dREQ; |
512 | |
1150 | |
513 | req->type = REQ_READAHEAD; |
1151 | req->type = REQ_READAHEAD; |
|
|
1152 | req->fh = newSVsv (fh); |
514 | req->fd = PerlIO_fileno (fh); |
1153 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
515 | req->offset = offset; |
1154 | req->offset = offset; |
516 | req->length = length; |
1155 | req->length = length; |
517 | req->callback = SvREFCNT_inc (callback); |
|
|
518 | |
1156 | |
519 | send_req (req); |
1157 | REQ_SEND; |
520 | } |
1158 | } |
521 | |
1159 | |
522 | void |
1160 | void |
523 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1161 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
524 | SV * fh_or_path |
1162 | SV * fh_or_path |
525 | SV * callback |
1163 | SV * callback |
526 | ALIAS: |
1164 | ALIAS: |
527 | aio_stat = REQ_STAT |
1165 | aio_stat = REQ_STAT |
528 | aio_lstat = REQ_LSTAT |
1166 | aio_lstat = REQ_LSTAT |
529 | CODE: |
1167 | PPCODE: |
530 | { |
1168 | { |
531 | aio_req req; |
1169 | dREQ; |
532 | |
|
|
533 | Newz (0, req, 1, aio_cb); |
|
|
534 | |
|
|
535 | if (!req) |
|
|
536 | croak ("out of memory during aio_req allocation"); |
|
|
537 | |
1170 | |
538 | New (0, req->statdata, 1, Stat_t); |
1171 | New (0, req->statdata, 1, Stat_t); |
539 | |
|
|
540 | if (!req->statdata) |
1172 | if (!req->statdata) |
|
|
1173 | { |
|
|
1174 | req_free (req); |
541 | croak ("out of memory during aio_req->statdata allocation"); |
1175 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1176 | } |
542 | |
1177 | |
543 | if (SvPOK (fh_or_path)) |
1178 | if (SvPOK (fh_or_path)) |
544 | { |
1179 | { |
545 | req->type = ix; |
1180 | req->type = ix; |
546 | req->data = newSVsv (fh_or_path); |
1181 | req->data = newSVsv (fh_or_path); |
547 | req->dataptr = SvPV_nolen (req->data); |
1182 | req->dataptr = SvPVbyte_nolen (req->data); |
548 | } |
1183 | } |
549 | else |
1184 | else |
550 | { |
1185 | { |
551 | req->type = REQ_FSTAT; |
1186 | req->type = REQ_FSTAT; |
|
|
1187 | req->fh = newSVsv (fh_or_path); |
552 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1188 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
553 | } |
1189 | } |
554 | |
1190 | |
555 | req->callback = SvREFCNT_inc (callback); |
1191 | REQ_SEND; |
556 | |
|
|
557 | send_req (req); |
|
|
558 | } |
1192 | } |
559 | |
1193 | |
560 | void |
1194 | void |
561 | aio_unlink(pathname,callback=&PL_sv_undef) |
1195 | aio_unlink (pathname,callback=&PL_sv_undef) |
562 | SV * pathname |
1196 | SV * pathname |
563 | SV * callback |
1197 | SV * callback |
|
|
1198 | ALIAS: |
|
|
1199 | aio_unlink = REQ_UNLINK |
|
|
1200 | aio_rmdir = REQ_RMDIR |
|
|
1201 | aio_readdir = REQ_READDIR |
|
|
1202 | PPCODE: |
|
|
1203 | { |
|
|
1204 | dREQ; |
|
|
1205 | |
|
|
1206 | req->type = ix; |
|
|
1207 | req->data = newSVsv (pathname); |
|
|
1208 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1209 | |
|
|
1210 | REQ_SEND; |
|
|
1211 | } |
|
|
1212 | |
|
|
1213 | void |
|
|
1214 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1215 | SV * oldpath |
|
|
1216 | SV * newpath |
|
|
1217 | SV * callback |
|
|
1218 | ALIAS: |
|
|
1219 | aio_link = REQ_LINK |
|
|
1220 | aio_symlink = REQ_SYMLINK |
|
|
1221 | aio_rename = REQ_RENAME |
|
|
1222 | PPCODE: |
|
|
1223 | { |
|
|
1224 | dREQ; |
|
|
1225 | |
|
|
1226 | req->type = ix; |
|
|
1227 | req->fh = newSVsv (oldpath); |
|
|
1228 | req->data2ptr = SvPVbyte_nolen (req->fh); |
|
|
1229 | req->data = newSVsv (newpath); |
|
|
1230 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1231 | |
|
|
1232 | REQ_SEND; |
|
|
1233 | } |
|
|
1234 | |
|
|
1235 | void |
|
|
1236 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1237 | double delay |
|
|
1238 | SV * callback |
|
|
1239 | PPCODE: |
|
|
1240 | { |
|
|
1241 | dREQ; |
|
|
1242 | |
|
|
1243 | req->type = REQ_SLEEP; |
|
|
1244 | req->fd = delay < 0. ? 0 : delay; |
|
|
1245 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1246 | |
|
|
1247 | REQ_SEND; |
|
|
1248 | } |
|
|
1249 | |
|
|
1250 | void |
|
|
1251 | aio_group (callback=&PL_sv_undef) |
|
|
1252 | SV * callback |
|
|
1253 | PROTOTYPE: ;$ |
|
|
1254 | PPCODE: |
|
|
1255 | { |
|
|
1256 | dREQ; |
|
|
1257 | |
|
|
1258 | req->type = REQ_GROUP; |
|
|
1259 | req_send (req); |
|
|
1260 | |
|
|
1261 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1262 | } |
|
|
1263 | |
|
|
1264 | void |
|
|
1265 | aio_nop (callback=&PL_sv_undef) |
|
|
1266 | SV * callback |
|
|
1267 | PPCODE: |
|
|
1268 | { |
|
|
1269 | dREQ; |
|
|
1270 | |
|
|
1271 | req->type = REQ_NOP; |
|
|
1272 | |
|
|
1273 | REQ_SEND; |
|
|
1274 | } |
|
|
1275 | |
|
|
1276 | #if 0 |
|
|
1277 | |
|
|
1278 | void |
|
|
1279 | aio_pri (int pri = DEFAULT_PRI) |
564 | CODE: |
1280 | CODE: |
565 | { |
1281 | if (pri < PRI_MIN) pri = PRI_MIN; |
566 | aio_req req; |
1282 | if (pri > PRI_MAX) pri = PRI_MAX; |
567 | |
1283 | next_pri = pri + PRI_BIAS; |
568 | Newz (0, req, 1, aio_cb); |
|
|
569 | |
|
|
570 | if (!req) |
|
|
571 | croak ("out of memory during aio_req allocation"); |
|
|
572 | |
|
|
573 | req->type = REQ_UNLINK; |
|
|
574 | req->data = newSVsv (pathname); |
|
|
575 | req->dataptr = SvPV_nolen (req->data); |
|
|
576 | req->callback = SvREFCNT_inc (callback); |
|
|
577 | |
|
|
578 | send_req (req); |
|
|
579 | } |
|
|
580 | |
1284 | |
|
|
1285 | #endif |
|
|
1286 | |
581 | void |
1287 | void |
582 | flush() |
1288 | flush () |
583 | PROTOTYPE: |
1289 | PROTOTYPE: |
584 | CODE: |
1290 | CODE: |
585 | while (nreqs) |
1291 | while (nreqs) |
586 | { |
1292 | { |
587 | poll_wait (); |
1293 | poll_wait (); |
… | |
… | |
627 | CODE: |
1333 | CODE: |
628 | RETVAL = nreqs; |
1334 | RETVAL = nreqs; |
629 | OUTPUT: |
1335 | OUTPUT: |
630 | RETVAL |
1336 | RETVAL |
631 | |
1337 | |
|
|
1338 | PROTOTYPES: DISABLE |
|
|
1339 | |
|
|
1340 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1341 | |
|
|
1342 | void |
|
|
1343 | cancel (aio_req_ornot req) |
|
|
1344 | PROTOTYPE: |
|
|
1345 | CODE: |
|
|
1346 | req_cancel (req); |
|
|
1347 | |
|
|
1348 | void |
|
|
1349 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1350 | CODE: |
|
|
1351 | SvREFCNT_dec (req->callback); |
|
|
1352 | req->callback = newSVsv (callback); |
|
|
1353 | |
|
|
1354 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1355 | |
|
|
1356 | void |
|
|
1357 | add (aio_req grp, ...) |
|
|
1358 | PPCODE: |
|
|
1359 | { |
|
|
1360 | int i; |
|
|
1361 | aio_req req; |
|
|
1362 | |
|
|
1363 | if (grp->fd == 2) |
|
|
1364 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1365 | |
|
|
1366 | for (i = 1; i < items; ++i ) |
|
|
1367 | { |
|
|
1368 | if (GIMME_V != G_VOID) |
|
|
1369 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1370 | |
|
|
1371 | req = SvAIO_REQ (ST (i)); |
|
|
1372 | |
|
|
1373 | if (req) |
|
|
1374 | { |
|
|
1375 | ++grp->length; |
|
|
1376 | req->grp = grp; |
|
|
1377 | |
|
|
1378 | req->grp_prev = 0; |
|
|
1379 | req->grp_next = grp->grp_first; |
|
|
1380 | |
|
|
1381 | if (grp->grp_first) |
|
|
1382 | grp->grp_first->grp_prev = req; |
|
|
1383 | |
|
|
1384 | grp->grp_first = req; |
|
|
1385 | } |
|
|
1386 | } |
|
|
1387 | } |
|
|
1388 | |
|
|
1389 | void |
|
|
1390 | result (aio_req grp, ...) |
|
|
1391 | CODE: |
|
|
1392 | { |
|
|
1393 | int i; |
|
|
1394 | AV *av = newAV (); |
|
|
1395 | |
|
|
1396 | for (i = 1; i < items; ++i ) |
|
|
1397 | av_push (av, newSVsv (ST (i))); |
|
|
1398 | |
|
|
1399 | SvREFCNT_dec (grp->data); |
|
|
1400 | grp->data = (SV *)av; |
|
|
1401 | } |
|
|
1402 | |
|
|
1403 | void |
|
|
1404 | feed_limit (aio_req grp, int limit) |
|
|
1405 | CODE: |
|
|
1406 | grp->fd2 = limit; |
|
|
1407 | aio_grp_feed (grp); |
|
|
1408 | |
|
|
1409 | void |
|
|
1410 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1411 | CODE: |
|
|
1412 | { |
|
|
1413 | SvREFCNT_dec (grp->fh2); |
|
|
1414 | grp->fh2 = newSVsv (callback); |
|
|
1415 | |
|
|
1416 | if (grp->fd2 <= 0) |
|
|
1417 | grp->fd2 = 2; |
|
|
1418 | |
|
|
1419 | aio_grp_feed (grp); |
|
|
1420 | } |
|
|
1421 | |