1 | #define PERL_NO_GET_CONTEXT |
1 | #define _REENTRANT 1 |
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2 | #include <errno.h> |
2 | |
3 | |
3 | #include "EXTERN.h" |
4 | #include "EXTERN.h" |
4 | #include "perl.h" |
5 | #include "perl.h" |
5 | #include "XSUB.h" |
6 | #include "XSUB.h" |
6 | |
7 | |
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8 | #include "autoconf/config.h" |
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9 | |
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10 | #include <pthread.h> |
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11 | |
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12 | #include <stddef.h> |
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13 | #include <errno.h> |
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14 | #include <sys/time.h> |
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15 | #include <sys/select.h> |
7 | #include <sys/types.h> |
16 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
17 | #include <sys/stat.h> |
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18 | #include <limits.h> |
9 | #include <unistd.h> |
19 | #include <unistd.h> |
10 | #include <fcntl.h> |
20 | #include <fcntl.h> |
11 | #include <signal.h> |
21 | #include <signal.h> |
12 | #include <sched.h> |
22 | #include <sched.h> |
13 | #include <endian.h> |
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14 | |
23 | |
15 | #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 |
16 | #include <sys/syscall.h> |
28 | # include <sys/socket.h> |
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29 | # include <sys/uio.h> |
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30 | # elif __hpux |
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31 | # include <sys/socket.h> |
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32 | # elif __solaris /* not yet */ |
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33 | # include <sys/sendfile.h> |
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34 | # else |
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35 | # error sendfile support requested but not available |
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36 | # endif |
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37 | #endif |
17 | |
38 | |
18 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
39 | /* used for struct dirent, AIX doesn't provide it */ |
19 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
40 | #ifndef NAME_MAX |
20 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
41 | # define NAME_MAX 4096 |
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42 | #endif |
21 | |
43 | |
22 | #if __ia64 |
44 | #if __ia64 |
23 | # define STACKSIZE 65536 |
45 | # define STACKSIZE 65536 |
24 | #else |
46 | #else |
25 | # define STACKSIZE 4096 |
47 | # define STACKSIZE 8192 |
26 | #endif |
48 | #endif |
27 | |
49 | |
28 | enum { |
50 | enum { |
29 | REQ_QUIT, |
51 | REQ_QUIT, |
30 | REQ_OPEN, REQ_CLOSE, |
52 | REQ_OPEN, REQ_CLOSE, |
31 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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54 | REQ_SENDFILE, |
32 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
33 | 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, |
34 | }; |
62 | }; |
35 | |
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 | |
36 | typedef struct aio_cb { |
67 | typedef struct aio_cb |
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68 | { |
37 | struct aio_cb *volatile next; |
69 | struct aio_cb *volatile next; |
38 | |
70 | |
39 | int type; |
71 | SV *data, *callback; |
40 | |
72 | SV *fh, *fh2; |
41 | int fd; |
73 | void *dataptr, *data2ptr; |
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74 | Stat_t *statdata; |
42 | off_t offset; |
75 | off_t offset; |
43 | size_t length; |
76 | size_t length; |
44 | 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; |
45 | mode_t mode; /* open */ |
83 | mode_t mode; /* open */ |
46 | int errorno; |
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47 | SV *data, *callback; |
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48 | void *dataptr; |
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49 | STRLEN dataoffset; |
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50 | |
84 | |
51 | 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; |
52 | } aio_cb; |
90 | } aio_cb; |
53 | |
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 | |
54 | typedef aio_cb *aio_req; |
96 | typedef aio_cb *aio_req; |
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97 | typedef aio_cb *aio_req_ornot; |
55 | |
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 | |
56 | static int started; |
109 | static int started, wanted; |
57 | static int nreqs; |
110 | static volatile int nreqs; |
58 | static int max_outstanding = 1<<30; |
111 | static int max_outstanding = 1<<30; |
59 | static int respipe [2]; |
112 | static int respipe [2]; |
60 | |
113 | |
61 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
114 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
62 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
115 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
63 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
116 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
64 | |
117 | |
65 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
118 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
66 | static volatile aio_req ress, rese; /* queue start, queue end */ |
119 | static volatile aio_req ress, rese; /* queue start, queue end */ |
67 | |
120 | |
68 | static void |
121 | static void req_invoke (aio_req req); |
69 | 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) |
70 | { |
126 | { |
71 | if (!nreqs) |
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); |
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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 | { |
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196 | while (nreqs) |
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197 | { |
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198 | aio_req req; |
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199 | pthread_mutex_lock (&reslock); |
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200 | req = ress; |
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201 | pthread_mutex_unlock (&reslock); |
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202 | |
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203 | if (req) |
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204 | return; |
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205 | |
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206 | fd_set rfd; |
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207 | FD_ZERO(&rfd); |
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208 | FD_SET(respipe [0], &rfd); |
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209 | |
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210 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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211 | } |
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212 | } |
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213 | |
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214 | static void req_invoke (aio_req req) |
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215 | { |
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216 | dSP; |
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217 | int errorno = errno; |
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218 | |
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219 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
72 | return; |
220 | return; |
73 | |
221 | |
74 | fd_set rfd; |
222 | errno = req->errorno; |
75 | FD_ZERO(&rfd); |
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76 | FD_SET(respipe [0], &rfd); |
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77 | |
223 | |
78 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
224 | ENTER; |
79 | } |
225 | SAVETMPS; |
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226 | PUSHMARK (SP); |
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227 | EXTEND (SP, 1); |
80 | |
228 | |
81 | static int |
229 | switch (req->type) |
82 | poll_cb (pTHX) |
230 | { |
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231 | case REQ_READDIR: |
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232 | { |
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233 | SV *rv = &PL_sv_undef; |
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234 | |
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235 | if (req->result >= 0) |
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236 | { |
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237 | char *buf = req->data2ptr; |
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238 | AV *av = newAV (); |
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239 | |
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240 | while (req->result) |
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241 | { |
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242 | SV *sv = newSVpv (buf, 0); |
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243 | |
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244 | av_push (av, sv); |
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245 | buf += SvCUR (sv) + 1; |
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246 | req->result--; |
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247 | } |
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248 | |
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249 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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250 | } |
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251 | |
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252 | PUSHs (rv); |
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253 | } |
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254 | break; |
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255 | |
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256 | case REQ_OPEN: |
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257 | { |
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258 | /* convert fd to fh */ |
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259 | SV *fh; |
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260 | |
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261 | PUSHs (sv_2mortal (newSViv (req->result))); |
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262 | PUTBACK; |
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263 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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264 | SPAGAIN; |
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265 | |
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266 | fh = SvREFCNT_inc (POPs); |
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267 | |
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268 | PUSHMARK (SP); |
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269 | XPUSHs (sv_2mortal (fh)); |
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270 | } |
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271 | break; |
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272 | |
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273 | case REQ_GROUP: |
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274 | req->fd = 2; /* mark group as finished */ |
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275 | |
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276 | if (req->data) |
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277 | { |
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278 | int i; |
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279 | AV *av = (AV *)req->data; |
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280 | |
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281 | EXTEND (SP, AvFILL (av) + 1); |
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282 | for (i = 0; i <= AvFILL (av); ++i) |
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283 | PUSHs (*av_fetch (av, i, 0)); |
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284 | } |
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285 | break; |
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286 | |
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287 | case REQ_NOP: |
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288 | case REQ_SLEEP: |
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289 | break; |
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290 | |
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291 | default: |
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292 | PUSHs (sv_2mortal (newSViv (req->result))); |
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293 | break; |
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294 | } |
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295 | |
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296 | |
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297 | PUTBACK; |
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298 | call_sv (req->callback, G_VOID | G_EVAL); |
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299 | SPAGAIN; |
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300 | |
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301 | FREETMPS; |
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302 | LEAVE; |
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303 | |
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304 | errno = errorno; |
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305 | |
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306 | if (SvTRUE (ERRSV)) |
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307 | { |
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308 | req_free (req); |
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309 | croak (0); |
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310 | } |
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311 | } |
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312 | |
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313 | static void req_free (aio_req req) |
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314 | { |
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315 | if (req->grp) |
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316 | { |
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317 | aio_req grp = req->grp; |
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318 | |
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319 | /* unlink request */ |
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320 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
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321 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
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322 | |
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323 | if (grp->grp_first == req) |
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324 | grp->grp_first = req->grp_next; |
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325 | |
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326 | aio_grp_dec (grp); |
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327 | } |
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328 | |
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329 | if (req->self) |
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330 | { |
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331 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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332 | SvREFCNT_dec (req->self); |
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333 | } |
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334 | |
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335 | SvREFCNT_dec (req->data); |
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336 | SvREFCNT_dec (req->fh); |
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337 | SvREFCNT_dec (req->fh2); |
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338 | SvREFCNT_dec (req->callback); |
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339 | Safefree (req->statdata); |
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340 | |
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341 | if (req->type == REQ_READDIR && req->result >= 0) |
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342 | free (req->data2ptr); |
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343 | |
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344 | Safefree (req); |
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345 | } |
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346 | |
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347 | static void req_cancel (aio_req req) |
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348 | { |
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349 | req->flags |= FLAG_CANCELLED; |
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350 | |
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351 | if (req->type == REQ_GROUP) |
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352 | { |
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353 | aio_req sub; |
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354 | |
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355 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
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356 | req_cancel (sub); |
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357 | } |
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358 | } |
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359 | |
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360 | static int poll_cb () |
83 | { |
361 | { |
84 | dSP; |
362 | dSP; |
85 | int count = 0; |
363 | int count = 0; |
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364 | int do_croak = 0; |
86 | aio_req req; |
365 | aio_req req; |
87 | |
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88 | { |
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89 | /* read and signals sent by the worker threads */ |
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90 | char buf [32]; |
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91 | while (read (respipe [0], buf, 32) > 0) |
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92 | ; |
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93 | } |
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94 | |
366 | |
95 | for (;;) |
367 | for (;;) |
96 | { |
368 | { |
97 | pthread_mutex_lock (&reslock); |
369 | pthread_mutex_lock (&reslock); |
98 | |
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99 | req = ress; |
370 | req = ress; |
100 | |
371 | |
101 | if (ress) |
372 | if (req) |
102 | { |
373 | { |
103 | ress = ress->next; |
374 | ress = req->next; |
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375 | |
104 | if (!ress) rese = 0; |
376 | if (!ress) |
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377 | { |
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378 | /* read any signals sent by the worker threads */ |
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379 | char buf [32]; |
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380 | while (read (respipe [0], buf, 32) == 32) |
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381 | ; |
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382 | |
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383 | rese = 0; |
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384 | } |
105 | } |
385 | } |
106 | |
386 | |
107 | pthread_mutex_unlock (&reslock); |
387 | pthread_mutex_unlock (&reslock); |
108 | |
388 | |
109 | if (!req) |
389 | if (!req) |
110 | break; |
390 | break; |
111 | |
391 | |
112 | nreqs--; |
392 | --nreqs; |
113 | |
393 | |
114 | if (req->type == REQ_QUIT) |
394 | if (req->type == REQ_QUIT) |
115 | started--; |
395 | started--; |
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396 | else if (req->type == REQ_GROUP && req->length) |
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397 | { |
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398 | req->fd = 1; /* mark request as delayed */ |
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399 | continue; |
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400 | } |
116 | else |
401 | else |
117 | { |
402 | { |
118 | int errorno = errno; |
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119 | errno = req->errorno; |
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120 | |
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121 | if (req->type == REQ_READ) |
403 | if (req->type == REQ_READ) |
122 | SvCUR_set (req->data, req->dataoffset |
404 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
123 | + req->result > 0 ? req->result : 0); |
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124 | |
405 | |
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406 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
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407 | SvREADONLY_off (req->data); |
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408 | |
125 | if (req->data) |
409 | if (req->statdata) |
126 | SvREFCNT_dec (req->data); |
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127 | |
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128 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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129 | { |
410 | { |
130 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
411 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
131 | PL_laststatval = req->result; |
412 | PL_laststatval = req->result; |
132 | PL_statcache = *(req->statdata); |
413 | PL_statcache = *(req->statdata); |
133 | |
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134 | Safefree (req->statdata); |
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135 | } |
414 | } |
136 | |
415 | |
137 | PUSHMARK (SP); |
416 | req_invoke (req); |
138 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
139 | |
417 | |
140 | if (req->type == REQ_OPEN) |
|
|
141 | { |
|
|
142 | /* convert fd to fh */ |
|
|
143 | SV *fh; |
|
|
144 | |
|
|
145 | PUTBACK; |
|
|
146 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
147 | SPAGAIN; |
|
|
148 | |
|
|
149 | fh = POPs; |
|
|
150 | |
|
|
151 | PUSHMARK (SP); |
|
|
152 | XPUSHs (fh); |
|
|
153 | } |
|
|
154 | |
|
|
155 | PUTBACK; |
|
|
156 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
157 | SPAGAIN; |
|
|
158 | |
|
|
159 | if (req->callback) |
|
|
160 | SvREFCNT_dec (req->callback); |
|
|
161 | |
|
|
162 | errno = errorno; |
|
|
163 | count++; |
418 | count++; |
164 | } |
419 | } |
165 | |
420 | |
166 | Safefree (req); |
421 | req_free (req); |
167 | } |
422 | } |
168 | |
423 | |
169 | return count; |
424 | return count; |
170 | } |
425 | } |
171 | |
426 | |
172 | static void *aio_proc(void *arg); |
427 | static void *aio_proc(void *arg); |
173 | |
428 | |
174 | static void |
|
|
175 | start_thread (void) |
429 | static void start_thread (void) |
176 | { |
430 | { |
177 | sigset_t fullsigset, oldsigset; |
431 | sigset_t fullsigset, oldsigset; |
178 | pthread_t tid; |
432 | pthread_t tid; |
179 | pthread_attr_t attr; |
433 | pthread_attr_t attr; |
180 | |
434 | |
… | |
… | |
189 | started++; |
443 | started++; |
190 | |
444 | |
191 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
445 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
192 | } |
446 | } |
193 | |
447 | |
194 | static void |
448 | static void req_send (aio_req req) |
195 | send_req (aio_req req) |
|
|
196 | { |
449 | { |
|
|
450 | while (started < wanted && nreqs >= started) |
|
|
451 | start_thread (); |
|
|
452 | |
197 | nreqs++; |
453 | ++nreqs; |
198 | |
454 | |
199 | pthread_mutex_lock (&reqlock); |
455 | pthread_mutex_lock (&reqlock); |
200 | |
456 | |
201 | req->next = 0; |
457 | req->next = 0; |
202 | |
458 | |
… | |
… | |
209 | reqe = reqs = req; |
465 | reqe = reqs = req; |
210 | |
466 | |
211 | pthread_cond_signal (&reqwait); |
467 | pthread_cond_signal (&reqwait); |
212 | pthread_mutex_unlock (&reqlock); |
468 | pthread_mutex_unlock (&reqlock); |
213 | |
469 | |
214 | while (nreqs > max_outstanding) |
470 | if (nreqs > max_outstanding) |
|
|
471 | for (;;) |
|
|
472 | { |
|
|
473 | poll_cb (); |
|
|
474 | |
|
|
475 | if (nreqs <= max_outstanding) |
|
|
476 | break; |
|
|
477 | |
|
|
478 | poll_wait (); |
|
|
479 | } |
|
|
480 | } |
|
|
481 | |
|
|
482 | static void end_thread (void) |
|
|
483 | { |
|
|
484 | aio_req req; |
|
|
485 | Newz (0, req, 1, aio_cb); |
|
|
486 | req->type = REQ_QUIT; |
|
|
487 | |
|
|
488 | req_send (req); |
|
|
489 | } |
|
|
490 | |
|
|
491 | static void min_parallel (int nthreads) |
|
|
492 | { |
|
|
493 | if (wanted < nthreads) |
|
|
494 | wanted = nthreads; |
|
|
495 | } |
|
|
496 | |
|
|
497 | static void max_parallel (int nthreads) |
|
|
498 | { |
|
|
499 | int cur = started; |
|
|
500 | |
|
|
501 | if (wanted > nthreads) |
|
|
502 | wanted = nthreads; |
|
|
503 | |
|
|
504 | while (cur > wanted) |
|
|
505 | { |
|
|
506 | end_thread (); |
|
|
507 | cur--; |
|
|
508 | } |
|
|
509 | |
|
|
510 | while (started > wanted) |
215 | { |
511 | { |
216 | poll_wait (); |
512 | poll_wait (); |
217 | poll_cb (); |
513 | poll_cb (); |
218 | } |
514 | } |
219 | } |
515 | } |
220 | |
516 | |
221 | static void |
517 | static void create_pipe () |
222 | end_thread (void) |
|
|
223 | { |
518 | { |
224 | aio_req req; |
519 | if (pipe (respipe)) |
225 | New (0, req, 1, aio_cb); |
520 | croak ("unable to initialize result pipe"); |
226 | req->type = REQ_QUIT; |
|
|
227 | |
521 | |
228 | send_req (req); |
522 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
229 | } |
523 | croak ("cannot set result pipe to nonblocking mode"); |
230 | |
524 | |
231 | static void |
525 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
232 | read_write (pTHX_ |
526 | croak ("cannot set result pipe to nonblocking mode"); |
233 | int dowrite, int fd, off_t offset, size_t length, |
527 | } |
234 | SV *data, STRLEN dataoffset, SV *callback) |
|
|
235 | { |
|
|
236 | aio_req req; |
|
|
237 | STRLEN svlen; |
|
|
238 | char *svptr = SvPV (data, svlen); |
|
|
239 | |
528 | |
240 | SvUPGRADE (data, SVt_PV); |
529 | /*****************************************************************************/ |
241 | SvPOK_on (data); |
530 | /* work around various missing functions */ |
242 | |
531 | |
243 | if (dataoffset < 0) |
532 | #if !HAVE_PREADWRITE |
|
|
533 | # define pread aio_pread |
|
|
534 | # define pwrite aio_pwrite |
|
|
535 | |
|
|
536 | /* |
|
|
537 | * make our pread/pwrite safe against themselves, but not against |
|
|
538 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
539 | * but that's your problem, not mine. |
|
|
540 | */ |
|
|
541 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
542 | |
|
|
543 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
544 | { |
|
|
545 | ssize_t res; |
|
|
546 | off_t ooffset; |
|
|
547 | |
|
|
548 | pthread_mutex_lock (&preadwritelock); |
|
|
549 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
550 | lseek (fd, offset, SEEK_SET); |
|
|
551 | res = read (fd, buf, count); |
|
|
552 | lseek (fd, ooffset, SEEK_SET); |
|
|
553 | pthread_mutex_unlock (&preadwritelock); |
|
|
554 | |
|
|
555 | return res; |
|
|
556 | } |
|
|
557 | |
|
|
558 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
559 | { |
|
|
560 | ssize_t res; |
|
|
561 | off_t ooffset; |
|
|
562 | |
|
|
563 | pthread_mutex_lock (&preadwritelock); |
|
|
564 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
565 | lseek (fd, offset, SEEK_SET); |
|
|
566 | res = write (fd, buf, count); |
|
|
567 | lseek (fd, offset, SEEK_SET); |
|
|
568 | pthread_mutex_unlock (&preadwritelock); |
|
|
569 | |
|
|
570 | return res; |
|
|
571 | } |
|
|
572 | #endif |
|
|
573 | |
|
|
574 | #if !HAVE_FDATASYNC |
|
|
575 | # define fdatasync fsync |
|
|
576 | #endif |
|
|
577 | |
|
|
578 | #if !HAVE_READAHEAD |
|
|
579 | # define readahead aio_readahead |
|
|
580 | |
|
|
581 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
582 | { |
|
|
583 | char readahead_buf[4096]; |
|
|
584 | |
|
|
585 | while (count > 0) |
|
|
586 | { |
|
|
587 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
|
|
588 | |
|
|
589 | pread (fd, readahead_buf, len, offset); |
244 | dataoffset += svlen; |
590 | offset += len; |
245 | |
591 | count -= len; |
246 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
247 | croak ("data offset outside of string"); |
|
|
248 | |
|
|
249 | if (dowrite) |
|
|
250 | { |
592 | } |
251 | /* write: check length and adjust. */ |
593 | |
252 | if (length < 0 || length + dataoffset > svlen) |
594 | errno = 0; |
253 | length = svlen - dataoffset; |
595 | } |
|
|
596 | #endif |
|
|
597 | |
|
|
598 | #if !HAVE_READDIR_R |
|
|
599 | # define readdir_r aio_readdir_r |
|
|
600 | |
|
|
601 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
602 | |
|
|
603 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
604 | { |
|
|
605 | struct dirent *e; |
|
|
606 | int errorno; |
|
|
607 | |
|
|
608 | pthread_mutex_lock (&readdirlock); |
|
|
609 | |
|
|
610 | e = readdir (dirp); |
|
|
611 | errorno = errno; |
|
|
612 | |
|
|
613 | if (e) |
|
|
614 | { |
|
|
615 | *res = ent; |
|
|
616 | strcpy (ent->d_name, e->d_name); |
254 | } |
617 | } |
255 | else |
618 | else |
|
|
619 | *res = 0; |
|
|
620 | |
|
|
621 | pthread_mutex_unlock (&readdirlock); |
|
|
622 | |
|
|
623 | errno = errorno; |
|
|
624 | return e ? 0 : -1; |
|
|
625 | } |
|
|
626 | #endif |
|
|
627 | |
|
|
628 | /* sendfile always needs emulation */ |
|
|
629 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
630 | { |
|
|
631 | ssize_t res; |
|
|
632 | |
|
|
633 | if (!count) |
|
|
634 | return 0; |
|
|
635 | |
|
|
636 | #if HAVE_SENDFILE |
|
|
637 | # if __linux |
|
|
638 | res = sendfile (ofd, ifd, &offset, count); |
|
|
639 | |
|
|
640 | # elif __freebsd |
|
|
641 | /* |
|
|
642 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
643 | * wasted on making it similar to other I/O functions. |
|
|
644 | */ |
256 | { |
645 | { |
257 | /* read: grow scalar as necessary */ |
646 | off_t sbytes; |
258 | svptr = SvGROW (data, length + dataoffset); |
647 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
648 | |
|
|
649 | if (res < 0 && sbytes) |
|
|
650 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
651 | res = sbytes; |
|
|
652 | } |
|
|
653 | |
|
|
654 | # elif __hpux |
|
|
655 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
656 | |
|
|
657 | # elif __solaris |
|
|
658 | { |
|
|
659 | struct sendfilevec vec; |
|
|
660 | size_t sbytes; |
|
|
661 | |
|
|
662 | vec.sfv_fd = ifd; |
|
|
663 | vec.sfv_flag = 0; |
|
|
664 | vec.sfv_off = offset; |
|
|
665 | vec.sfv_len = count; |
|
|
666 | |
|
|
667 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
668 | |
|
|
669 | if (res < 0 && sbytes) |
|
|
670 | res = sbytes; |
|
|
671 | } |
|
|
672 | |
|
|
673 | # endif |
|
|
674 | #else |
|
|
675 | res = -1; |
|
|
676 | errno = ENOSYS; |
|
|
677 | #endif |
|
|
678 | |
|
|
679 | if (res < 0 |
|
|
680 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
681 | #if __solaris |
|
|
682 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
683 | #endif |
|
|
684 | ) |
|
|
685 | ) |
259 | } |
686 | { |
|
|
687 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
688 | char buf[4096]; |
|
|
689 | res = 0; |
260 | |
690 | |
261 | if (length < 0) |
691 | while (count) |
262 | croak ("length must not be negative"); |
692 | { |
|
|
693 | ssize_t cnt; |
|
|
694 | |
|
|
695 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
263 | |
696 | |
264 | Newz (0, req, 1, aio_cb); |
697 | if (cnt <= 0) |
|
|
698 | { |
|
|
699 | if (cnt && !res) res = -1; |
|
|
700 | break; |
|
|
701 | } |
265 | |
702 | |
|
|
703 | cnt = write (ofd, buf, cnt); |
|
|
704 | |
|
|
705 | if (cnt <= 0) |
|
|
706 | { |
|
|
707 | if (cnt && !res) res = -1; |
|
|
708 | break; |
|
|
709 | } |
|
|
710 | |
|
|
711 | offset += cnt; |
|
|
712 | res += cnt; |
|
|
713 | count -= cnt; |
|
|
714 | } |
|
|
715 | } |
|
|
716 | |
|
|
717 | return res; |
|
|
718 | } |
|
|
719 | |
|
|
720 | /* read a full directory */ |
|
|
721 | static int scandir_ (const char *path, void **namesp) |
|
|
722 | { |
|
|
723 | DIR *dirp = opendir (path); |
|
|
724 | union |
|
|
725 | { |
|
|
726 | struct dirent d; |
|
|
727 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
728 | } u; |
|
|
729 | struct dirent *entp; |
|
|
730 | char *name, *names; |
|
|
731 | int memlen = 4096; |
|
|
732 | int memofs = 0; |
|
|
733 | int res = 0; |
|
|
734 | int errorno; |
|
|
735 | |
266 | if (!req) |
736 | if (!dirp) |
267 | croak ("out of memory during aio_req allocation"); |
737 | return -1; |
268 | |
738 | |
269 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
739 | 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 | |
740 | |
277 | send_req (req); |
741 | for (;;) |
278 | } |
742 | { |
|
|
743 | errno = 0, readdir_r (dirp, &u.d, &entp); |
279 | |
744 | |
280 | static void * |
745 | if (!entp) |
|
|
746 | break; |
|
|
747 | |
|
|
748 | name = entp->d_name; |
|
|
749 | |
|
|
750 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
751 | { |
|
|
752 | int len = strlen (name) + 1; |
|
|
753 | |
|
|
754 | res++; |
|
|
755 | |
|
|
756 | while (memofs + len > memlen) |
|
|
757 | { |
|
|
758 | memlen *= 2; |
|
|
759 | names = realloc (names, memlen); |
|
|
760 | if (!names) |
|
|
761 | break; |
|
|
762 | } |
|
|
763 | |
|
|
764 | memcpy (names + memofs, name, len); |
|
|
765 | memofs += len; |
|
|
766 | } |
|
|
767 | } |
|
|
768 | |
|
|
769 | errorno = errno; |
|
|
770 | closedir (dirp); |
|
|
771 | |
|
|
772 | if (errorno) |
|
|
773 | { |
|
|
774 | free (names); |
|
|
775 | errno = errorno; |
|
|
776 | res = -1; |
|
|
777 | } |
|
|
778 | |
|
|
779 | *namesp = (void *)names; |
|
|
780 | return res; |
|
|
781 | } |
|
|
782 | |
|
|
783 | /*****************************************************************************/ |
|
|
784 | |
281 | aio_proc (void *thr_arg) |
785 | static void *aio_proc (void *thr_arg) |
282 | { |
786 | { |
283 | aio_req req; |
787 | aio_req req; |
284 | int type; |
788 | int type; |
285 | |
789 | |
286 | do |
790 | do |
… | |
… | |
304 | } |
808 | } |
305 | |
809 | |
306 | pthread_mutex_unlock (&reqlock); |
810 | pthread_mutex_unlock (&reqlock); |
307 | |
811 | |
308 | errno = 0; /* strictly unnecessary */ |
812 | errno = 0; /* strictly unnecessary */ |
|
|
813 | type = req->type; /* remember type for QUIT check */ |
309 | |
814 | |
310 | type = req->type; |
815 | if (!(req->flags & FLAG_CANCELLED)) |
311 | |
|
|
312 | switch (type) |
816 | switch (type) |
313 | { |
817 | { |
314 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
818 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
315 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
819 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
316 | #if SYS_readahead |
820 | |
317 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
821 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
318 | #else |
822 | 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 | |
823 | |
322 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
824 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
323 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
825 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
324 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
826 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
325 | |
827 | |
326 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
828 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
327 | case REQ_CLOSE: req->result = close (req->fd); break; |
829 | case REQ_CLOSE: req->result = close (req->fd); break; |
328 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
830 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
329 | |
|
|
330 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
831 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
832 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
833 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
834 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
835 | |
331 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
836 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
837 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
838 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
332 | |
839 | |
|
|
840 | case REQ_SLEEP: |
|
|
841 | { |
|
|
842 | struct timeval tv; |
|
|
843 | |
|
|
844 | tv.tv_sec = req->fd; |
|
|
845 | tv.tv_usec = req->fd2; |
|
|
846 | |
|
|
847 | req->result = select (0, 0, 0, 0, &tv); |
|
|
848 | } |
|
|
849 | |
|
|
850 | case REQ_GROUP: |
|
|
851 | case REQ_NOP: |
333 | case REQ_QUIT: |
852 | case REQ_QUIT: |
334 | break; |
853 | break; |
335 | |
854 | |
336 | default: |
855 | default: |
337 | req->result = ENOSYS; |
856 | req->result = ENOSYS; |
338 | break; |
857 | break; |
339 | } |
858 | } |
340 | |
859 | |
341 | req->errorno = errno; |
860 | req->errorno = errno; |
342 | |
861 | |
343 | pthread_mutex_lock (&reslock); |
862 | pthread_mutex_lock (&reslock); |
344 | |
863 | |
… | |
… | |
362 | while (type != REQ_QUIT); |
881 | while (type != REQ_QUIT); |
363 | |
882 | |
364 | return 0; |
883 | return 0; |
365 | } |
884 | } |
366 | |
885 | |
|
|
886 | /*****************************************************************************/ |
|
|
887 | |
|
|
888 | static void atfork_prepare (void) |
|
|
889 | { |
|
|
890 | pthread_mutex_lock (&reqlock); |
|
|
891 | pthread_mutex_lock (&reslock); |
|
|
892 | #if !HAVE_PREADWRITE |
|
|
893 | pthread_mutex_lock (&preadwritelock); |
|
|
894 | #endif |
|
|
895 | #if !HAVE_READDIR_R |
|
|
896 | pthread_mutex_lock (&readdirlock); |
|
|
897 | #endif |
|
|
898 | } |
|
|
899 | |
|
|
900 | static void atfork_parent (void) |
|
|
901 | { |
|
|
902 | #if !HAVE_READDIR_R |
|
|
903 | pthread_mutex_unlock (&readdirlock); |
|
|
904 | #endif |
|
|
905 | #if !HAVE_PREADWRITE |
|
|
906 | pthread_mutex_unlock (&preadwritelock); |
|
|
907 | #endif |
|
|
908 | pthread_mutex_unlock (&reslock); |
|
|
909 | pthread_mutex_unlock (&reqlock); |
|
|
910 | } |
|
|
911 | |
|
|
912 | static void atfork_child (void) |
|
|
913 | { |
|
|
914 | aio_req prv; |
|
|
915 | |
|
|
916 | started = 0; |
|
|
917 | |
|
|
918 | while (reqs) |
|
|
919 | { |
|
|
920 | prv = reqs; |
|
|
921 | reqs = prv->next; |
|
|
922 | req_free (prv); |
|
|
923 | } |
|
|
924 | |
|
|
925 | reqs = reqe = 0; |
|
|
926 | |
|
|
927 | while (ress) |
|
|
928 | { |
|
|
929 | prv = ress; |
|
|
930 | ress = prv->next; |
|
|
931 | req_free (prv); |
|
|
932 | } |
|
|
933 | |
|
|
934 | ress = rese = 0; |
|
|
935 | |
|
|
936 | close (respipe [0]); |
|
|
937 | close (respipe [1]); |
|
|
938 | create_pipe (); |
|
|
939 | |
|
|
940 | atfork_parent (); |
|
|
941 | } |
|
|
942 | |
|
|
943 | #define dREQ \ |
|
|
944 | aio_req req; \ |
|
|
945 | int req_pri = next_pri; \ |
|
|
946 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
947 | \ |
|
|
948 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
949 | croak ("callback must be undef or of reference type"); \ |
|
|
950 | \ |
|
|
951 | Newz (0, req, 1, aio_cb); \ |
|
|
952 | if (!req) \ |
|
|
953 | croak ("out of memory during aio_req allocation"); \ |
|
|
954 | \ |
|
|
955 | req->callback = newSVsv (callback); \ |
|
|
956 | req->pri = req_pri |
|
|
957 | |
|
|
958 | #define REQ_SEND \ |
|
|
959 | req_send (req); \ |
|
|
960 | \ |
|
|
961 | if (GIMME_V != G_VOID) \ |
|
|
962 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
963 | |
367 | MODULE = IO::AIO PACKAGE = IO::AIO |
964 | MODULE = IO::AIO PACKAGE = IO::AIO |
368 | |
965 | |
|
|
966 | PROTOTYPES: ENABLE |
|
|
967 | |
369 | BOOT: |
968 | BOOT: |
370 | { |
969 | { |
371 | if (pipe (respipe)) |
970 | HV *stash = gv_stashpv ("IO::AIO", 1); |
372 | croak ("unable to initialize result pipe"); |
971 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
972 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
973 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
373 | |
974 | |
374 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
975 | create_pipe (); |
375 | croak ("cannot set result pipe to nonblocking mode"); |
976 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
376 | |
|
|
377 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
378 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
379 | } |
977 | } |
380 | |
978 | |
381 | void |
979 | void |
382 | min_parallel(nthreads) |
980 | min_parallel (nthreads) |
383 | int nthreads |
981 | int nthreads |
384 | PROTOTYPE: $ |
982 | PROTOTYPE: $ |
385 | CODE: |
|
|
386 | while (nthreads > started) |
|
|
387 | start_thread (); |
|
|
388 | |
983 | |
389 | void |
984 | void |
390 | max_parallel(nthreads) |
985 | max_parallel (nthreads) |
391 | int nthreads |
986 | int nthreads |
392 | PROTOTYPE: $ |
987 | PROTOTYPE: $ |
393 | CODE: |
|
|
394 | { |
|
|
395 | int cur = started; |
|
|
396 | while (cur > nthreads) |
|
|
397 | { |
|
|
398 | end_thread (); |
|
|
399 | cur--; |
|
|
400 | } |
|
|
401 | |
|
|
402 | while (started > nthreads) |
|
|
403 | { |
|
|
404 | poll_wait (); |
|
|
405 | poll_cb (aTHX); |
|
|
406 | } |
|
|
407 | } |
|
|
408 | |
988 | |
409 | int |
989 | int |
410 | max_outstanding(nreqs) |
990 | max_outstanding (nreqs) |
411 | int nreqs |
991 | int nreqs |
412 | PROTOTYPE: $ |
992 | PROTOTYPE: $ |
413 | CODE: |
993 | CODE: |
414 | RETVAL = max_outstanding; |
994 | RETVAL = max_outstanding; |
415 | max_outstanding = nreqs; |
995 | max_outstanding = nreqs; |
416 | |
996 | |
417 | void |
997 | void |
418 | aio_open(pathname,flags,mode,callback) |
998 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
419 | SV * pathname |
999 | SV * pathname |
420 | int flags |
1000 | int flags |
421 | int mode |
1001 | int mode |
422 | SV * callback |
1002 | SV * callback |
423 | PROTOTYPE: $$$$ |
1003 | PROTOTYPE: $$$;$ |
424 | CODE: |
1004 | PPCODE: |
425 | { |
1005 | { |
426 | aio_req req; |
1006 | dREQ; |
427 | |
|
|
428 | Newz (0, req, 1, aio_cb); |
|
|
429 | |
|
|
430 | if (!req) |
|
|
431 | croak ("out of memory during aio_req allocation"); |
|
|
432 | |
1007 | |
433 | req->type = REQ_OPEN; |
1008 | req->type = REQ_OPEN; |
434 | req->data = newSVsv (pathname); |
1009 | req->data = newSVsv (pathname); |
435 | req->dataptr = SvPV_nolen (req->data); |
1010 | req->dataptr = SvPVbyte_nolen (req->data); |
436 | req->fd = flags; |
1011 | req->fd = flags; |
437 | req->mode = mode; |
1012 | req->mode = mode; |
438 | req->callback = SvREFCNT_inc (callback); |
|
|
439 | |
1013 | |
440 | send_req (req); |
1014 | REQ_SEND; |
441 | } |
1015 | } |
442 | |
1016 | |
443 | void |
1017 | void |
444 | aio_close(fh,callback) |
1018 | aio_close (fh,callback=&PL_sv_undef) |
445 | InputStream fh |
1019 | SV * fh |
446 | SV * callback |
1020 | SV * callback |
447 | PROTOTYPE: $$ |
1021 | PROTOTYPE: $;$ |
448 | ALIAS: |
1022 | ALIAS: |
449 | aio_close = REQ_CLOSE |
1023 | aio_close = REQ_CLOSE |
450 | aio_fsync = REQ_FSYNC |
1024 | aio_fsync = REQ_FSYNC |
451 | aio_fdatasync = REQ_FDATASYNC |
1025 | aio_fdatasync = REQ_FDATASYNC |
452 | CODE: |
1026 | PPCODE: |
|
|
1027 | { |
|
|
1028 | dREQ; |
|
|
1029 | |
|
|
1030 | req->type = ix; |
|
|
1031 | req->fh = newSVsv (fh); |
|
|
1032 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
1033 | |
|
|
1034 | REQ_SEND (req); |
|
|
1035 | } |
|
|
1036 | |
|
|
1037 | void |
|
|
1038 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
1039 | SV * fh |
|
|
1040 | UV offset |
|
|
1041 | UV length |
|
|
1042 | SV * data |
|
|
1043 | UV dataoffset |
|
|
1044 | SV * callback |
|
|
1045 | ALIAS: |
|
|
1046 | aio_read = REQ_READ |
|
|
1047 | aio_write = REQ_WRITE |
|
|
1048 | PROTOTYPE: $$$$$;$ |
|
|
1049 | PPCODE: |
453 | { |
1050 | { |
454 | aio_req req; |
1051 | aio_req req; |
|
|
1052 | STRLEN svlen; |
|
|
1053 | char *svptr = SvPVbyte (data, svlen); |
455 | |
1054 | |
456 | Newz (0, req, 1, aio_cb); |
1055 | SvUPGRADE (data, SVt_PV); |
|
|
1056 | SvPOK_on (data); |
457 | |
1057 | |
458 | if (!req) |
1058 | if (dataoffset < 0) |
459 | croak ("out of memory during aio_req allocation"); |
1059 | dataoffset += svlen; |
460 | |
1060 | |
461 | req->type = ix; |
1061 | if (dataoffset < 0 || dataoffset > svlen) |
462 | req->fd = PerlIO_fileno (fh); |
1062 | croak ("data offset outside of string"); |
463 | req->callback = SvREFCNT_inc (callback); |
|
|
464 | |
1063 | |
465 | send_req (req); |
1064 | if (ix == REQ_WRITE) |
466 | } |
1065 | { |
467 | |
1066 | /* write: check length and adjust. */ |
468 | void |
1067 | if (length < 0 || length + dataoffset > svlen) |
469 | aio_read(fh,offset,length,data,dataoffset,callback) |
1068 | length = svlen - dataoffset; |
470 | InputStream fh |
1069 | } |
471 | UV offset |
1070 | else |
472 | IV length |
1071 | { |
473 | SV * data |
1072 | /* read: grow scalar as necessary */ |
474 | IV dataoffset |
1073 | svptr = SvGROW (data, length + dataoffset); |
475 | SV * callback |
1074 | } |
476 | PROTOTYPE: $$$$$$ |
|
|
477 | CODE: |
|
|
478 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
479 | |
|
|
480 | void |
|
|
481 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
482 | OutputStream fh |
|
|
483 | UV offset |
|
|
484 | IV length |
|
|
485 | SV * data |
|
|
486 | IV dataoffset |
|
|
487 | SV * callback |
|
|
488 | PROTOTYPE: $$$$$$ |
|
|
489 | CODE: |
|
|
490 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
491 | |
|
|
492 | void |
|
|
493 | aio_readahead(fh,offset,length,callback) |
|
|
494 | InputStream fh |
|
|
495 | UV offset |
|
|
496 | IV length |
|
|
497 | SV * callback |
|
|
498 | PROTOTYPE: $$$$ |
|
|
499 | CODE: |
|
|
500 | { |
|
|
501 | aio_req req; |
|
|
502 | |
1075 | |
503 | if (length < 0) |
1076 | if (length < 0) |
504 | croak ("length must not be negative"); |
1077 | croak ("length must not be negative"); |
505 | |
1078 | |
506 | Newz (0, req, 1, aio_cb); |
1079 | { |
|
|
1080 | dREQ; |
507 | |
1081 | |
508 | if (!req) |
1082 | req->type = ix; |
509 | croak ("out of memory during aio_req allocation"); |
1083 | req->fh = newSVsv (fh); |
|
|
1084 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
1085 | : IoOFP (sv_2io (fh))); |
|
|
1086 | req->offset = offset; |
|
|
1087 | req->length = length; |
|
|
1088 | req->data = SvREFCNT_inc (data); |
|
|
1089 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1090 | |
|
|
1091 | if (!SvREADONLY (data)) |
|
|
1092 | { |
|
|
1093 | SvREADONLY_on (data); |
|
|
1094 | req->data2ptr = (void *)data; |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | REQ_SEND; |
|
|
1098 | } |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | void |
|
|
1102 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1103 | SV * out_fh |
|
|
1104 | SV * in_fh |
|
|
1105 | UV in_offset |
|
|
1106 | UV length |
|
|
1107 | SV * callback |
|
|
1108 | PROTOTYPE: $$$$;$ |
|
|
1109 | PPCODE: |
|
|
1110 | { |
|
|
1111 | dREQ; |
|
|
1112 | |
|
|
1113 | req->type = REQ_SENDFILE; |
|
|
1114 | req->fh = newSVsv (out_fh); |
|
|
1115 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1116 | req->fh2 = newSVsv (in_fh); |
|
|
1117 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1118 | req->offset = in_offset; |
|
|
1119 | req->length = length; |
|
|
1120 | |
|
|
1121 | REQ_SEND; |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | void |
|
|
1125 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
|
|
1126 | SV * fh |
|
|
1127 | UV offset |
|
|
1128 | IV length |
|
|
1129 | SV * callback |
|
|
1130 | PROTOTYPE: $$$;$ |
|
|
1131 | PPCODE: |
|
|
1132 | { |
|
|
1133 | dREQ; |
510 | |
1134 | |
511 | req->type = REQ_READAHEAD; |
1135 | req->type = REQ_READAHEAD; |
|
|
1136 | req->fh = newSVsv (fh); |
512 | req->fd = PerlIO_fileno (fh); |
1137 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
513 | req->offset = offset; |
1138 | req->offset = offset; |
514 | req->length = length; |
1139 | req->length = length; |
515 | req->callback = SvREFCNT_inc (callback); |
|
|
516 | |
1140 | |
517 | send_req (req); |
1141 | REQ_SEND; |
518 | } |
1142 | } |
519 | |
1143 | |
520 | void |
1144 | void |
521 | aio_stat(fh_or_path,callback) |
1145 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
522 | SV * fh_or_path |
1146 | SV * fh_or_path |
523 | SV * callback |
1147 | SV * callback |
524 | PROTOTYPE: $$ |
|
|
525 | ALIAS: |
1148 | ALIAS: |
|
|
1149 | aio_stat = REQ_STAT |
526 | aio_lstat = 1 |
1150 | aio_lstat = REQ_LSTAT |
527 | CODE: |
1151 | PPCODE: |
528 | { |
1152 | { |
529 | aio_req req; |
1153 | dREQ; |
530 | |
|
|
531 | Newz (0, req, 1, aio_cb); |
|
|
532 | |
|
|
533 | if (!req) |
|
|
534 | croak ("out of memory during aio_req allocation"); |
|
|
535 | |
1154 | |
536 | New (0, req->statdata, 1, Stat_t); |
1155 | New (0, req->statdata, 1, Stat_t); |
537 | |
|
|
538 | if (!req->statdata) |
1156 | if (!req->statdata) |
|
|
1157 | { |
|
|
1158 | req_free (req); |
539 | croak ("out of memory during aio_req->statdata allocation"); |
1159 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1160 | } |
540 | |
1161 | |
541 | if (SvPOK (fh_or_path)) |
1162 | if (SvPOK (fh_or_path)) |
542 | { |
1163 | { |
543 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
1164 | req->type = ix; |
544 | req->data = newSVsv (fh_or_path); |
1165 | req->data = newSVsv (fh_or_path); |
545 | req->dataptr = SvPV_nolen (req->data); |
1166 | req->dataptr = SvPVbyte_nolen (req->data); |
546 | } |
1167 | } |
547 | else |
1168 | else |
548 | { |
1169 | { |
549 | req->type = REQ_FSTAT; |
1170 | req->type = REQ_FSTAT; |
|
|
1171 | req->fh = newSVsv (fh_or_path); |
550 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1172 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
551 | } |
1173 | } |
552 | |
1174 | |
553 | req->callback = SvREFCNT_inc (callback); |
1175 | REQ_SEND; |
554 | |
|
|
555 | send_req (req); |
|
|
556 | } |
1176 | } |
557 | |
1177 | |
558 | void |
1178 | void |
559 | aio_unlink(pathname,callback) |
1179 | aio_unlink (pathname,callback=&PL_sv_undef) |
560 | SV * pathname |
1180 | SV * pathname |
561 | SV * callback |
1181 | SV * callback |
|
|
1182 | ALIAS: |
|
|
1183 | aio_unlink = REQ_UNLINK |
|
|
1184 | aio_rmdir = REQ_RMDIR |
|
|
1185 | aio_readdir = REQ_READDIR |
|
|
1186 | PPCODE: |
|
|
1187 | { |
|
|
1188 | dREQ; |
|
|
1189 | |
|
|
1190 | req->type = ix; |
|
|
1191 | req->data = newSVsv (pathname); |
|
|
1192 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1193 | |
|
|
1194 | REQ_SEND; |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | void |
|
|
1198 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1199 | SV * oldpath |
|
|
1200 | SV * newpath |
|
|
1201 | SV * callback |
|
|
1202 | ALIAS: |
|
|
1203 | aio_link = REQ_LINK |
|
|
1204 | aio_symlink = REQ_SYMLINK |
|
|
1205 | aio_rename = REQ_RENAME |
|
|
1206 | PPCODE: |
|
|
1207 | { |
|
|
1208 | dREQ; |
|
|
1209 | |
|
|
1210 | req->type = ix; |
|
|
1211 | req->fh = newSVsv (oldpath); |
|
|
1212 | req->data2ptr = SvPVbyte_nolen (req->fh); |
|
|
1213 | req->data = newSVsv (newpath); |
|
|
1214 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1215 | |
|
|
1216 | REQ_SEND; |
|
|
1217 | } |
|
|
1218 | |
|
|
1219 | void |
|
|
1220 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1221 | double delay |
|
|
1222 | SV * callback |
|
|
1223 | PPCODE: |
|
|
1224 | { |
|
|
1225 | dREQ; |
|
|
1226 | |
|
|
1227 | req->type = REQ_SLEEP; |
|
|
1228 | req->fd = delay < 0. ? 0 : delay; |
|
|
1229 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1230 | |
|
|
1231 | REQ_SEND; |
|
|
1232 | } |
|
|
1233 | |
|
|
1234 | void |
|
|
1235 | aio_group (callback=&PL_sv_undef) |
|
|
1236 | SV * callback |
562 | PROTOTYPE: $$ |
1237 | PROTOTYPE: ;$ |
|
|
1238 | PPCODE: |
|
|
1239 | { |
|
|
1240 | dREQ; |
|
|
1241 | |
|
|
1242 | req->type = REQ_GROUP; |
|
|
1243 | req_send (req); |
|
|
1244 | |
|
|
1245 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1246 | } |
|
|
1247 | |
|
|
1248 | void |
|
|
1249 | aio_nop (callback=&PL_sv_undef) |
|
|
1250 | SV * callback |
|
|
1251 | PPCODE: |
|
|
1252 | { |
|
|
1253 | dREQ; |
|
|
1254 | |
|
|
1255 | req->type = REQ_NOP; |
|
|
1256 | |
|
|
1257 | REQ_SEND; |
|
|
1258 | } |
|
|
1259 | |
|
|
1260 | #if 0 |
|
|
1261 | |
|
|
1262 | void |
|
|
1263 | aio_pri (int pri = DEFAULT_PRI) |
563 | CODE: |
1264 | CODE: |
564 | { |
1265 | if (pri < PRI_MIN) pri = PRI_MIN; |
565 | aio_req req; |
1266 | if (pri > PRI_MAX) pri = PRI_MAX; |
566 | |
1267 | next_pri = pri + PRI_BIAS; |
567 | Newz (0, req, 1, aio_cb); |
1268 | |
568 | |
1269 | #endif |
569 | if (!req) |
1270 | |
570 | croak ("out of memory during aio_req allocation"); |
1271 | void |
571 | |
1272 | flush () |
572 | req->type = REQ_UNLINK; |
1273 | PROTOTYPE: |
573 | req->data = newSVsv (pathname); |
1274 | CODE: |
574 | req->dataptr = SvPV_nolen (req->data); |
1275 | while (nreqs) |
575 | req->callback = SvREFCNT_inc (callback); |
1276 | { |
576 | |
1277 | poll_wait (); |
577 | send_req (req); |
1278 | poll_cb (); |
578 | } |
1279 | } |
|
|
1280 | |
|
|
1281 | void |
|
|
1282 | poll() |
|
|
1283 | PROTOTYPE: |
|
|
1284 | CODE: |
|
|
1285 | if (nreqs) |
|
|
1286 | { |
|
|
1287 | poll_wait (); |
|
|
1288 | poll_cb (); |
|
|
1289 | } |
579 | |
1290 | |
580 | int |
1291 | int |
581 | poll_fileno() |
1292 | poll_fileno() |
582 | PROTOTYPE: |
1293 | PROTOTYPE: |
583 | CODE: |
1294 | CODE: |
… | |
… | |
587 | |
1298 | |
588 | int |
1299 | int |
589 | poll_cb(...) |
1300 | poll_cb(...) |
590 | PROTOTYPE: |
1301 | PROTOTYPE: |
591 | CODE: |
1302 | CODE: |
592 | RETVAL = poll_cb (aTHX); |
1303 | RETVAL = poll_cb (); |
593 | OUTPUT: |
1304 | OUTPUT: |
594 | RETVAL |
1305 | RETVAL |
595 | |
1306 | |
596 | void |
1307 | void |
597 | poll_wait() |
1308 | poll_wait() |
… | |
… | |
606 | CODE: |
1317 | CODE: |
607 | RETVAL = nreqs; |
1318 | RETVAL = nreqs; |
608 | OUTPUT: |
1319 | OUTPUT: |
609 | RETVAL |
1320 | RETVAL |
610 | |
1321 | |
|
|
1322 | PROTOTYPES: DISABLE |
|
|
1323 | |
|
|
1324 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1325 | |
|
|
1326 | void |
|
|
1327 | cancel (aio_req_ornot req) |
|
|
1328 | PROTOTYPE: |
|
|
1329 | CODE: |
|
|
1330 | req_cancel (req); |
|
|
1331 | |
|
|
1332 | void |
|
|
1333 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1334 | CODE: |
|
|
1335 | SvREFCNT_dec (req->callback); |
|
|
1336 | req->callback = newSVsv (callback); |
|
|
1337 | |
|
|
1338 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1339 | |
|
|
1340 | void |
|
|
1341 | add (aio_req grp, ...) |
|
|
1342 | PPCODE: |
|
|
1343 | { |
|
|
1344 | int i; |
|
|
1345 | aio_req req; |
|
|
1346 | |
|
|
1347 | if (grp->fd == 2) |
|
|
1348 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1349 | |
|
|
1350 | for (i = 1; i < items; ++i ) |
|
|
1351 | { |
|
|
1352 | if (GIMME_V != G_VOID) |
|
|
1353 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1354 | |
|
|
1355 | req = SvAIO_REQ (ST (i)); |
|
|
1356 | |
|
|
1357 | if (req) |
|
|
1358 | { |
|
|
1359 | ++grp->length; |
|
|
1360 | req->grp = grp; |
|
|
1361 | |
|
|
1362 | req->grp_prev = 0; |
|
|
1363 | req->grp_next = grp->grp_first; |
|
|
1364 | |
|
|
1365 | if (grp->grp_first) |
|
|
1366 | grp->grp_first->grp_prev = req; |
|
|
1367 | |
|
|
1368 | grp->grp_first = req; |
|
|
1369 | } |
|
|
1370 | } |
|
|
1371 | } |
|
|
1372 | |
|
|
1373 | void |
|
|
1374 | result (aio_req grp, ...) |
|
|
1375 | CODE: |
|
|
1376 | { |
|
|
1377 | int i; |
|
|
1378 | AV *av = newAV (); |
|
|
1379 | |
|
|
1380 | for (i = 1; i < items; ++i ) |
|
|
1381 | av_push (av, newSVsv (ST (i))); |
|
|
1382 | |
|
|
1383 | SvREFCNT_dec (grp->data); |
|
|
1384 | grp->data = (SV *)av; |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | void |
|
|
1388 | feed_limit (aio_req grp, int limit) |
|
|
1389 | CODE: |
|
|
1390 | grp->fd2 = limit; |
|
|
1391 | aio_grp_feed (grp); |
|
|
1392 | |
|
|
1393 | void |
|
|
1394 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1395 | CODE: |
|
|
1396 | { |
|
|
1397 | SvREFCNT_dec (grp->fh2); |
|
|
1398 | grp->fh2 = newSVsv (callback); |
|
|
1399 | |
|
|
1400 | if (grp->fd2 <= 0) |
|
|
1401 | grp->fd2 = 2; |
|
|
1402 | |
|
|
1403 | aio_grp_feed (grp); |
|
|
1404 | } |
|
|
1405 | |