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1 | #if __linux |
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2 | # define _GNU_SOURCE |
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3 | #endif |
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4 | |
1 | #define _REENTRANT 1 |
5 | #define _REENTRANT 1 |
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6 | |
2 | #include <errno.h> |
7 | #include <errno.h> |
3 | |
8 | |
4 | #include "EXTERN.h" |
9 | #include "EXTERN.h" |
5 | #include "perl.h" |
10 | #include "perl.h" |
6 | #include "XSUB.h" |
11 | #include "XSUB.h" |
7 | |
12 | |
8 | #include "autoconf/config.h" |
13 | #include "autoconf/config.h" |
9 | |
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> |
10 | #include <sys/types.h> |
21 | #include <sys/types.h> |
11 | #include <sys/stat.h> |
22 | #include <sys/stat.h> |
12 | |
23 | #include <limits.h> |
13 | #include <unistd.h> |
24 | #include <unistd.h> |
14 | #include <fcntl.h> |
25 | #include <fcntl.h> |
15 | #include <signal.h> |
26 | #include <signal.h> |
16 | #include <sched.h> |
27 | #include <sched.h> |
17 | |
28 | |
18 | #include <pthread.h> |
29 | #if HAVE_SENDFILE |
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30 | # if __linux |
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31 | # include <sys/sendfile.h> |
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32 | # elif __freebsd |
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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 |
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41 | # endif |
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42 | #endif |
19 | |
43 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
44 | /* used for struct dirent, AIX doesn't provide it */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
45 | #ifndef NAME_MAX |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
46 | # define NAME_MAX 4096 |
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47 | #endif |
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, |
60 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
61 | REQ_FSYNC, REQ_FDATASYNC, |
36 | REQ_UNLINK, REQ_RMDIR, |
62 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
37 | REQ_SYMLINK, |
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, |
38 | }; |
67 | }; |
39 | |
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 | |
40 | typedef struct aio_cb { |
72 | typedef struct aio_cb |
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73 | { |
41 | struct aio_cb *volatile next; |
74 | struct aio_cb *volatile next; |
42 | |
75 | |
43 | int type; |
76 | SV *data, *callback; |
44 | |
77 | SV *fh, *fh2; |
45 | int fd; |
78 | void *dataptr, *data2ptr; |
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79 | Stat_t *statdata; |
46 | off_t offset; |
80 | off_t offset; |
47 | size_t length; |
81 | size_t length; |
48 | 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; |
49 | mode_t mode; /* open */ |
88 | mode_t mode; /* open */ |
50 | int errorno; |
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51 | SV *data, *callback, *fh; |
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52 | void *dataptr, *data2ptr; |
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53 | STRLEN dataoffset; |
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54 | |
89 | |
55 | 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; |
56 | } aio_cb; |
95 | } aio_cb; |
57 | |
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 | |
58 | typedef aio_cb *aio_req; |
101 | typedef aio_cb *aio_req; |
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102 | typedef aio_cb *aio_req_ornot; |
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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; |
59 | |
113 | |
60 | static int started, wanted; |
114 | static int started, wanted; |
61 | static volatile int nreqs; |
115 | static volatile int nreqs; |
62 | static int max_outstanding = 1<<30; |
116 | static int max_outstanding = 1<<30; |
63 | static int respipe [2]; |
117 | static int respipe [2]; |
64 | |
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 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
125 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
126 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
127 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
68 | |
128 | |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
129 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
70 | static volatile aio_req ress, rese; /* queue start, queue end */ |
130 | static volatile aio_req ress, rese; /* queue start, queue end */ |
71 | |
131 | |
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132 | static void req_invoke (aio_req req); |
72 | static void free_req (aio_req req) |
133 | static void req_free (aio_req req); |
73 | { |
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74 | if (req->data) |
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75 | SvREFCNT_dec (req->data); |
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76 | |
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) |
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137 | { |
77 | if (req->fh) |
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); |
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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 | { |
78 | SvREFCNT_dec (req->fh); |
183 | SvREFCNT_dec (grp->fh2); |
79 | |
184 | grp->fh2 = 0; |
80 | if (req->statdata) |
185 | break; |
81 | Safefree (req->statdata); |
186 | } |
82 | |
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83 | if (req->callback) |
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84 | SvREFCNT_dec (req->callback); |
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85 | |
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86 | Safefree (req); |
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87 | } |
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88 | |
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89 | static void |
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90 | poll_wait () |
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91 | { |
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92 | if (nreqs && !ress) |
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93 | { |
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 | { |
94 | 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 | pthread_mutex_lock (&reslock); |
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213 | req = ress; |
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214 | pthread_mutex_unlock (&reslock); |
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215 | |
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216 | if (req) |
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217 | return; |
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218 | |
95 | FD_ZERO(&rfd); |
219 | FD_ZERO(&rfd); |
96 | FD_SET(respipe [0], &rfd); |
220 | FD_SET(respipe [0], &rfd); |
97 | |
221 | |
98 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
222 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
99 | } |
223 | } |
100 | } |
224 | } |
101 | |
225 | |
102 | static int |
226 | static void req_invoke (aio_req req) |
103 | poll_cb () |
227 | { |
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228 | dSP; |
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229 | int errorno = errno; |
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230 | |
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231 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
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232 | return; |
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233 | |
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234 | errno = req->errorno; |
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235 | |
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236 | ENTER; |
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237 | SAVETMPS; |
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238 | PUSHMARK (SP); |
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239 | EXTEND (SP, 1); |
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240 | |
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241 | switch (req->type) |
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242 | { |
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243 | case REQ_READDIR: |
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244 | { |
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245 | SV *rv = &PL_sv_undef; |
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246 | |
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247 | if (req->result >= 0) |
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248 | { |
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249 | char *buf = req->data2ptr; |
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250 | AV *av = newAV (); |
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251 | |
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252 | while (req->result) |
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253 | { |
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254 | SV *sv = newSVpv (buf, 0); |
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255 | |
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256 | av_push (av, sv); |
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257 | buf += SvCUR (sv) + 1; |
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258 | req->result--; |
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259 | } |
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260 | |
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261 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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262 | } |
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263 | |
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264 | PUSHs (rv); |
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265 | } |
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266 | break; |
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267 | |
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268 | case REQ_OPEN: |
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269 | { |
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270 | /* convert fd to fh */ |
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271 | SV *fh; |
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272 | |
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273 | PUSHs (sv_2mortal (newSViv (req->result))); |
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274 | PUTBACK; |
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275 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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276 | SPAGAIN; |
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277 | |
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278 | fh = SvREFCNT_inc (POPs); |
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279 | |
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280 | PUSHMARK (SP); |
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281 | XPUSHs (sv_2mortal (fh)); |
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282 | } |
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283 | break; |
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284 | |
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285 | case REQ_GROUP: |
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286 | req->fd = 2; /* mark group as finished */ |
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287 | |
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288 | if (req->data) |
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289 | { |
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290 | int i; |
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291 | AV *av = (AV *)req->data; |
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292 | |
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293 | EXTEND (SP, AvFILL (av) + 1); |
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294 | for (i = 0; i <= AvFILL (av); ++i) |
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295 | PUSHs (*av_fetch (av, i, 0)); |
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296 | } |
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297 | break; |
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298 | |
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299 | case REQ_NOP: |
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300 | case REQ_SLEEP: |
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301 | break; |
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302 | |
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303 | default: |
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304 | PUSHs (sv_2mortal (newSViv (req->result))); |
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305 | break; |
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306 | } |
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307 | |
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308 | |
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309 | PUTBACK; |
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310 | call_sv (req->callback, G_VOID | G_EVAL); |
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311 | SPAGAIN; |
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312 | |
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313 | FREETMPS; |
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314 | LEAVE; |
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315 | |
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316 | errno = errorno; |
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317 | |
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318 | if (SvTRUE (ERRSV)) |
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319 | { |
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320 | req_free (req); |
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321 | croak (0); |
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322 | } |
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323 | } |
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324 | |
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325 | static void req_free (aio_req req) |
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326 | { |
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327 | if (req->grp) |
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328 | { |
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329 | aio_req grp = req->grp; |
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330 | |
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331 | /* unlink request */ |
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332 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
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333 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
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334 | |
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335 | if (grp->grp_first == req) |
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336 | grp->grp_first = req->grp_next; |
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337 | |
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338 | aio_grp_dec (grp); |
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339 | } |
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340 | |
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341 | if (req->self) |
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342 | { |
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343 | sv_unmagic (req->self, PERL_MAGIC_ext); |
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344 | SvREFCNT_dec (req->self); |
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345 | } |
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346 | |
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347 | SvREFCNT_dec (req->data); |
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348 | SvREFCNT_dec (req->fh); |
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349 | SvREFCNT_dec (req->fh2); |
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350 | SvREFCNT_dec (req->callback); |
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351 | Safefree (req->statdata); |
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352 | |
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353 | if (req->type == REQ_READDIR && req->result >= 0) |
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354 | free (req->data2ptr); |
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355 | |
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356 | Safefree (req); |
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357 | } |
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358 | |
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359 | static void req_cancel (aio_req req) |
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360 | { |
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361 | req->flags |= FLAG_CANCELLED; |
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362 | |
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363 | if (req->type == REQ_GROUP) |
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364 | { |
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365 | aio_req sub; |
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366 | |
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367 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
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368 | req_cancel (sub); |
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369 | } |
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370 | } |
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371 | |
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372 | static int poll_cb () |
104 | { |
373 | { |
105 | dSP; |
374 | dSP; |
106 | int count = 0; |
375 | int count = 0; |
107 | int do_croak = 0; |
376 | int do_croak = 0; |
108 | aio_req req; |
377 | aio_req req; |
… | |
… | |
130 | pthread_mutex_unlock (&reslock); |
399 | pthread_mutex_unlock (&reslock); |
131 | |
400 | |
132 | if (!req) |
401 | if (!req) |
133 | break; |
402 | break; |
134 | |
403 | |
135 | nreqs--; |
404 | --nreqs; |
136 | |
405 | |
137 | if (req->type == REQ_QUIT) |
406 | if (req->type == REQ_QUIT) |
138 | started--; |
407 | started--; |
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408 | else if (req->type == REQ_GROUP && req->length) |
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409 | { |
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410 | req->fd = 1; /* mark request as delayed */ |
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411 | continue; |
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412 | } |
139 | else |
413 | else |
140 | { |
414 | { |
141 | int errorno = errno; |
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142 | errno = req->errorno; |
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143 | |
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144 | if (req->type == REQ_READ) |
415 | if (req->type == REQ_READ) |
145 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
416 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
146 | |
417 | |
147 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
418 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
148 | SvREADONLY_off (req->data); |
419 | SvREADONLY_off (req->data); |
… | |
… | |
152 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
423 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
153 | PL_laststatval = req->result; |
424 | PL_laststatval = req->result; |
154 | PL_statcache = *(req->statdata); |
425 | PL_statcache = *(req->statdata); |
155 | } |
426 | } |
156 | |
427 | |
157 | ENTER; |
428 | req_invoke (req); |
158 | PUSHMARK (SP); |
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159 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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160 | |
429 | |
161 | if (req->type == REQ_OPEN) |
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162 | { |
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163 | /* convert fd to fh */ |
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164 | SV *fh; |
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165 | |
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166 | PUTBACK; |
|
|
167 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
168 | SPAGAIN; |
|
|
169 | |
|
|
170 | fh = SvREFCNT_inc (POPs); |
|
|
171 | |
|
|
172 | PUSHMARK (SP); |
|
|
173 | XPUSHs (sv_2mortal (fh)); |
|
|
174 | } |
|
|
175 | |
|
|
176 | if (SvOK (req->callback)) |
|
|
177 | { |
|
|
178 | PUTBACK; |
|
|
179 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
180 | SPAGAIN; |
|
|
181 | |
|
|
182 | if (SvTRUE (ERRSV)) |
|
|
183 | { |
|
|
184 | free_req (req); |
|
|
185 | croak (0); |
|
|
186 | } |
|
|
187 | } |
|
|
188 | |
|
|
189 | LEAVE; |
|
|
190 | |
|
|
191 | errno = errorno; |
|
|
192 | count++; |
430 | count++; |
193 | } |
431 | } |
194 | |
432 | |
195 | free_req (req); |
433 | req_free (req); |
196 | } |
434 | } |
197 | |
435 | |
198 | return count; |
436 | return count; |
199 | } |
437 | } |
200 | |
438 | |
201 | static void *aio_proc(void *arg); |
439 | static void *aio_proc(void *arg); |
202 | |
440 | |
203 | static void |
|
|
204 | start_thread (void) |
441 | static void start_thread (void) |
205 | { |
442 | { |
206 | sigset_t fullsigset, oldsigset; |
443 | sigset_t fullsigset, oldsigset; |
207 | pthread_t tid; |
444 | pthread_t tid; |
208 | pthread_attr_t attr; |
445 | pthread_attr_t attr; |
209 | |
446 | |
210 | pthread_attr_init (&attr); |
447 | pthread_attr_init (&attr); |
211 | pthread_attr_setstacksize (&attr, STACKSIZE); |
448 | pthread_attr_setstacksize (&attr, STACKSIZE); |
212 | // pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
449 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
213 | |
450 | |
214 | sigfillset (&fullsigset); |
451 | sigfillset (&fullsigset); |
215 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
452 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
216 | |
453 | |
217 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
454 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
218 | started++; |
455 | started++; |
219 | |
456 | |
220 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
457 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
221 | } |
458 | } |
222 | |
459 | |
223 | static void |
460 | static void req_send (aio_req req) |
224 | send_req (aio_req req) |
|
|
225 | { |
461 | { |
226 | while (started < wanted && nreqs >= started) |
462 | while (started < wanted && nreqs >= started) |
227 | start_thread (); |
463 | start_thread (); |
228 | |
464 | |
229 | nreqs++; |
465 | ++nreqs; |
230 | |
466 | |
231 | pthread_mutex_lock (&reqlock); |
467 | pthread_mutex_lock (&reqlock); |
232 | |
468 | |
233 | req->next = 0; |
469 | req->next = 0; |
234 | |
470 | |
… | |
… | |
253 | |
489 | |
254 | poll_wait (); |
490 | poll_wait (); |
255 | } |
491 | } |
256 | } |
492 | } |
257 | |
493 | |
258 | static void |
494 | static void end_thread (void) |
259 | end_thread (void) |
|
|
260 | { |
495 | { |
261 | aio_req req; |
496 | aio_req req; |
262 | Newz (0, req, 1, aio_cb); |
497 | Newz (0, req, 1, aio_cb); |
263 | req->type = REQ_QUIT; |
498 | req->type = REQ_QUIT; |
264 | |
499 | |
265 | send_req (req); |
500 | req_send (req); |
266 | } |
501 | } |
267 | |
502 | |
268 | static void min_parallel (int nthreads) |
503 | static void min_parallel (int nthreads) |
269 | { |
504 | { |
270 | if (wanted < nthreads) |
505 | if (wanted < nthreads) |
… | |
… | |
299 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
534 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
300 | croak ("cannot set result pipe to nonblocking mode"); |
535 | croak ("cannot set result pipe to nonblocking mode"); |
301 | |
536 | |
302 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
537 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
303 | croak ("cannot set result pipe to nonblocking mode"); |
538 | croak ("cannot set result pipe to nonblocking mode"); |
304 | } |
|
|
305 | |
|
|
306 | static void atfork_prepare (void) |
|
|
307 | { |
|
|
308 | pthread_mutex_lock (&reqlock); |
|
|
309 | pthread_mutex_lock (&reslock); |
|
|
310 | } |
|
|
311 | |
|
|
312 | static void atfork_parent (void) |
|
|
313 | { |
|
|
314 | pthread_mutex_unlock (&reslock); |
|
|
315 | pthread_mutex_unlock (&reqlock); |
|
|
316 | } |
|
|
317 | |
|
|
318 | static void atfork_child (void) |
|
|
319 | { |
|
|
320 | aio_req prv; |
|
|
321 | |
|
|
322 | started = 0; |
|
|
323 | |
|
|
324 | while (reqs) |
|
|
325 | { |
|
|
326 | prv = reqs; |
|
|
327 | reqs = prv->next; |
|
|
328 | free_req (prv); |
|
|
329 | } |
|
|
330 | |
|
|
331 | reqs = reqe = 0; |
|
|
332 | |
|
|
333 | while (ress) |
|
|
334 | { |
|
|
335 | prv = ress; |
|
|
336 | ress = prv->next; |
|
|
337 | free_req (prv); |
|
|
338 | } |
|
|
339 | |
|
|
340 | ress = rese = 0; |
|
|
341 | |
|
|
342 | close (respipe [0]); |
|
|
343 | close (respipe [1]); |
|
|
344 | create_pipe (); |
|
|
345 | |
|
|
346 | atfork_parent (); |
|
|
347 | } |
539 | } |
348 | |
540 | |
349 | /*****************************************************************************/ |
541 | /*****************************************************************************/ |
350 | /* work around various missing functions */ |
542 | /* work around various missing functions */ |
351 | |
543 | |
… | |
… | |
356 | /* |
548 | /* |
357 | * make our pread/pwrite safe against themselves, but not against |
549 | * make our pread/pwrite safe against themselves, but not against |
358 | * normal read/write by using a mutex. slows down execution a lot, |
550 | * normal read/write by using a mutex. slows down execution a lot, |
359 | * but that's your problem, not mine. |
551 | * but that's your problem, not mine. |
360 | */ |
552 | */ |
361 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
553 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
362 | |
554 | |
363 | static ssize_t |
555 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
364 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
365 | { |
556 | { |
366 | ssize_t res; |
557 | ssize_t res; |
367 | off_t ooffset; |
558 | off_t ooffset; |
368 | |
559 | |
369 | pthread_mutex_lock (&iolock); |
560 | pthread_mutex_lock (&preadwritelock); |
370 | ooffset = lseek (fd, 0, SEEK_CUR); |
561 | ooffset = lseek (fd, 0, SEEK_CUR); |
371 | lseek (fd, offset, SEEK_SET); |
562 | lseek (fd, offset, SEEK_SET); |
372 | res = read (fd, buf, count); |
563 | res = read (fd, buf, count); |
373 | lseek (fd, ooffset, SEEK_SET); |
564 | lseek (fd, ooffset, SEEK_SET); |
374 | pthread_mutex_unlock (&iolock); |
565 | pthread_mutex_unlock (&preadwritelock); |
375 | |
566 | |
376 | return res; |
567 | return res; |
377 | } |
568 | } |
378 | |
569 | |
379 | static ssize_t |
|
|
380 | pwrite (int fd, void *buf, size_t count, off_t offset) |
570 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
381 | { |
571 | { |
382 | ssize_t res; |
572 | ssize_t res; |
383 | off_t ooffset; |
573 | off_t ooffset; |
384 | |
574 | |
385 | pthread_mutex_lock (&iolock); |
575 | pthread_mutex_lock (&preadwritelock); |
386 | ooffset = lseek (fd, 0, SEEK_CUR); |
576 | ooffset = lseek (fd, 0, SEEK_CUR); |
387 | lseek (fd, offset, SEEK_SET); |
577 | lseek (fd, offset, SEEK_SET); |
388 | res = write (fd, buf, count); |
578 | res = write (fd, buf, count); |
389 | lseek (fd, offset, SEEK_SET); |
579 | lseek (fd, offset, SEEK_SET); |
390 | pthread_mutex_unlock (&iolock); |
580 | pthread_mutex_unlock (&preadwritelock); |
391 | |
581 | |
392 | return res; |
582 | return res; |
393 | } |
583 | } |
394 | #endif |
584 | #endif |
395 | |
585 | |
… | |
… | |
398 | #endif |
588 | #endif |
399 | |
589 | |
400 | #if !HAVE_READAHEAD |
590 | #if !HAVE_READAHEAD |
401 | # define readahead aio_readahead |
591 | # define readahead aio_readahead |
402 | |
592 | |
|
|
593 | static ssize_t readahead (int fd, off_t offset, size_t count) |
|
|
594 | { |
403 | static char readahead_buf[4096]; |
595 | char readahead_buf[4096]; |
404 | |
596 | |
405 | static ssize_t |
|
|
406 | readahead (int fd, off_t offset, size_t count) |
|
|
407 | { |
|
|
408 | while (count > 0) |
597 | while (count > 0) |
409 | { |
598 | { |
410 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
599 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
411 | |
600 | |
412 | pread (fd, readahead_buf, len, offset); |
601 | pread (fd, readahead_buf, len, offset); |
… | |
… | |
416 | |
605 | |
417 | errno = 0; |
606 | errno = 0; |
418 | } |
607 | } |
419 | #endif |
608 | #endif |
420 | |
609 | |
|
|
610 | #if !HAVE_READDIR_R |
|
|
611 | # define readdir_r aio_readdir_r |
|
|
612 | |
|
|
613 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
614 | |
|
|
615 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
616 | { |
|
|
617 | struct dirent *e; |
|
|
618 | int errorno; |
|
|
619 | |
|
|
620 | pthread_mutex_lock (&readdirlock); |
|
|
621 | |
|
|
622 | e = readdir (dirp); |
|
|
623 | errorno = errno; |
|
|
624 | |
|
|
625 | if (e) |
|
|
626 | { |
|
|
627 | *res = ent; |
|
|
628 | strcpy (ent->d_name, e->d_name); |
|
|
629 | } |
|
|
630 | else |
|
|
631 | *res = 0; |
|
|
632 | |
|
|
633 | pthread_mutex_unlock (&readdirlock); |
|
|
634 | |
|
|
635 | errno = errorno; |
|
|
636 | return e ? 0 : -1; |
|
|
637 | } |
|
|
638 | #endif |
|
|
639 | |
|
|
640 | /* sendfile always needs emulation */ |
|
|
641 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
|
642 | { |
|
|
643 | ssize_t res; |
|
|
644 | |
|
|
645 | if (!count) |
|
|
646 | return 0; |
|
|
647 | |
|
|
648 | #if HAVE_SENDFILE |
|
|
649 | # if __linux |
|
|
650 | res = sendfile (ofd, ifd, &offset, count); |
|
|
651 | |
|
|
652 | # elif __freebsd |
|
|
653 | /* |
|
|
654 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
655 | * wasted on making it similar to other I/O functions. |
|
|
656 | */ |
|
|
657 | { |
|
|
658 | off_t sbytes; |
|
|
659 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
660 | |
|
|
661 | if (res < 0 && sbytes) |
|
|
662 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
|
663 | res = sbytes; |
|
|
664 | } |
|
|
665 | |
|
|
666 | # elif __hpux |
|
|
667 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
668 | |
|
|
669 | # elif __solaris |
|
|
670 | { |
|
|
671 | struct sendfilevec vec; |
|
|
672 | size_t sbytes; |
|
|
673 | |
|
|
674 | vec.sfv_fd = ifd; |
|
|
675 | vec.sfv_flag = 0; |
|
|
676 | vec.sfv_off = offset; |
|
|
677 | vec.sfv_len = count; |
|
|
678 | |
|
|
679 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
680 | |
|
|
681 | if (res < 0 && sbytes) |
|
|
682 | res = sbytes; |
|
|
683 | } |
|
|
684 | |
|
|
685 | # endif |
|
|
686 | #else |
|
|
687 | res = -1; |
|
|
688 | errno = ENOSYS; |
|
|
689 | #endif |
|
|
690 | |
|
|
691 | if (res < 0 |
|
|
692 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
693 | #if __solaris |
|
|
694 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
695 | #endif |
|
|
696 | ) |
|
|
697 | ) |
|
|
698 | { |
|
|
699 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
700 | char buf[4096]; |
|
|
701 | res = 0; |
|
|
702 | |
|
|
703 | while (count) |
|
|
704 | { |
|
|
705 | ssize_t cnt; |
|
|
706 | |
|
|
707 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
|
|
708 | |
|
|
709 | if (cnt <= 0) |
|
|
710 | { |
|
|
711 | if (cnt && !res) res = -1; |
|
|
712 | break; |
|
|
713 | } |
|
|
714 | |
|
|
715 | cnt = write (ofd, buf, cnt); |
|
|
716 | |
|
|
717 | if (cnt <= 0) |
|
|
718 | { |
|
|
719 | if (cnt && !res) res = -1; |
|
|
720 | break; |
|
|
721 | } |
|
|
722 | |
|
|
723 | offset += cnt; |
|
|
724 | res += cnt; |
|
|
725 | count -= cnt; |
|
|
726 | } |
|
|
727 | } |
|
|
728 | |
|
|
729 | return res; |
|
|
730 | } |
|
|
731 | |
|
|
732 | /* read a full directory */ |
|
|
733 | static int scandir_ (const char *path, void **namesp) |
|
|
734 | { |
|
|
735 | DIR *dirp = opendir (path); |
|
|
736 | union |
|
|
737 | { |
|
|
738 | struct dirent d; |
|
|
739 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
740 | } u; |
|
|
741 | struct dirent *entp; |
|
|
742 | char *name, *names; |
|
|
743 | int memlen = 4096; |
|
|
744 | int memofs = 0; |
|
|
745 | int res = 0; |
|
|
746 | int errorno; |
|
|
747 | |
|
|
748 | if (!dirp) |
|
|
749 | return -1; |
|
|
750 | |
|
|
751 | names = malloc (memlen); |
|
|
752 | |
|
|
753 | for (;;) |
|
|
754 | { |
|
|
755 | errno = 0, readdir_r (dirp, &u.d, &entp); |
|
|
756 | |
|
|
757 | if (!entp) |
|
|
758 | break; |
|
|
759 | |
|
|
760 | name = entp->d_name; |
|
|
761 | |
|
|
762 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
763 | { |
|
|
764 | int len = strlen (name) + 1; |
|
|
765 | |
|
|
766 | res++; |
|
|
767 | |
|
|
768 | while (memofs + len > memlen) |
|
|
769 | { |
|
|
770 | memlen *= 2; |
|
|
771 | names = realloc (names, memlen); |
|
|
772 | if (!names) |
|
|
773 | break; |
|
|
774 | } |
|
|
775 | |
|
|
776 | memcpy (names + memofs, name, len); |
|
|
777 | memofs += len; |
|
|
778 | } |
|
|
779 | } |
|
|
780 | |
|
|
781 | errorno = errno; |
|
|
782 | closedir (dirp); |
|
|
783 | |
|
|
784 | if (errorno) |
|
|
785 | { |
|
|
786 | free (names); |
|
|
787 | errno = errorno; |
|
|
788 | res = -1; |
|
|
789 | } |
|
|
790 | |
|
|
791 | *namesp = (void *)names; |
|
|
792 | return res; |
|
|
793 | } |
|
|
794 | |
421 | /*****************************************************************************/ |
795 | /*****************************************************************************/ |
422 | |
796 | |
423 | static void * |
|
|
424 | aio_proc (void *thr_arg) |
797 | static void *aio_proc (void *thr_arg) |
425 | { |
798 | { |
426 | aio_req req; |
799 | aio_req req; |
427 | int type; |
800 | int type; |
428 | |
801 | |
429 | do |
802 | do |
… | |
… | |
447 | } |
820 | } |
448 | |
821 | |
449 | pthread_mutex_unlock (&reqlock); |
822 | pthread_mutex_unlock (&reqlock); |
450 | |
823 | |
451 | errno = 0; /* strictly unnecessary */ |
824 | errno = 0; /* strictly unnecessary */ |
|
|
825 | type = req->type; /* remember type for QUIT check */ |
452 | |
826 | |
453 | type = req->type; |
827 | if (!(req->flags & FLAG_CANCELLED)) |
454 | |
|
|
455 | switch (type) |
828 | switch (type) |
456 | { |
829 | { |
457 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
830 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
458 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
831 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
459 | |
832 | |
460 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
833 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
834 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
461 | |
835 | |
462 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
836 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
463 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
837 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
464 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
838 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
465 | |
839 | |
466 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
840 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
467 | case REQ_CLOSE: req->result = close (req->fd); break; |
841 | case REQ_CLOSE: req->result = close (req->fd); break; |
468 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
842 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
469 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
843 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
844 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
845 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
470 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
846 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
471 | |
847 | |
472 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
848 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
473 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
849 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
850 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
474 | |
851 | |
|
|
852 | case REQ_SLEEP: |
|
|
853 | { |
|
|
854 | struct timeval tv; |
|
|
855 | |
|
|
856 | tv.tv_sec = req->fd; |
|
|
857 | tv.tv_usec = req->fd2; |
|
|
858 | |
|
|
859 | req->result = select (0, 0, 0, 0, &tv); |
|
|
860 | } |
|
|
861 | |
|
|
862 | case REQ_GROUP: |
|
|
863 | case REQ_NOP: |
475 | case REQ_QUIT: |
864 | case REQ_QUIT: |
476 | break; |
865 | break; |
477 | |
866 | |
478 | default: |
867 | default: |
479 | req->result = ENOSYS; |
868 | req->result = ENOSYS; |
480 | break; |
869 | break; |
481 | } |
870 | } |
482 | |
871 | |
483 | req->errorno = errno; |
872 | req->errorno = errno; |
484 | |
873 | |
485 | pthread_mutex_lock (&reslock); |
874 | pthread_mutex_lock (&reslock); |
486 | |
875 | |
… | |
… | |
504 | while (type != REQ_QUIT); |
893 | while (type != REQ_QUIT); |
505 | |
894 | |
506 | return 0; |
895 | return 0; |
507 | } |
896 | } |
508 | |
897 | |
|
|
898 | /*****************************************************************************/ |
|
|
899 | |
|
|
900 | static void atfork_prepare (void) |
|
|
901 | { |
|
|
902 | pthread_mutex_lock (&reqlock); |
|
|
903 | pthread_mutex_lock (&reslock); |
|
|
904 | #if !HAVE_PREADWRITE |
|
|
905 | pthread_mutex_lock (&preadwritelock); |
|
|
906 | #endif |
|
|
907 | #if !HAVE_READDIR_R |
|
|
908 | pthread_mutex_lock (&readdirlock); |
|
|
909 | #endif |
|
|
910 | } |
|
|
911 | |
|
|
912 | static void atfork_parent (void) |
|
|
913 | { |
|
|
914 | #if !HAVE_READDIR_R |
|
|
915 | pthread_mutex_unlock (&readdirlock); |
|
|
916 | #endif |
|
|
917 | #if !HAVE_PREADWRITE |
|
|
918 | pthread_mutex_unlock (&preadwritelock); |
|
|
919 | #endif |
|
|
920 | pthread_mutex_unlock (&reslock); |
|
|
921 | pthread_mutex_unlock (&reqlock); |
|
|
922 | } |
|
|
923 | |
|
|
924 | static void atfork_child (void) |
|
|
925 | { |
|
|
926 | aio_req prv; |
|
|
927 | |
|
|
928 | started = 0; |
|
|
929 | |
|
|
930 | while (reqs) |
|
|
931 | { |
|
|
932 | prv = reqs; |
|
|
933 | reqs = prv->next; |
|
|
934 | req_free (prv); |
|
|
935 | } |
|
|
936 | |
|
|
937 | reqs = reqe = 0; |
|
|
938 | |
|
|
939 | while (ress) |
|
|
940 | { |
|
|
941 | prv = ress; |
|
|
942 | ress = prv->next; |
|
|
943 | req_free (prv); |
|
|
944 | } |
|
|
945 | |
|
|
946 | ress = rese = 0; |
|
|
947 | |
|
|
948 | close (respipe [0]); |
|
|
949 | close (respipe [1]); |
|
|
950 | create_pipe (); |
|
|
951 | |
|
|
952 | atfork_parent (); |
|
|
953 | } |
|
|
954 | |
509 | #define dREQ \ |
955 | #define dREQ \ |
510 | aio_req req; \ |
956 | aio_req req; \ |
|
|
957 | int req_pri = next_pri; \ |
|
|
958 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
511 | \ |
959 | \ |
512 | if (SvOK (callback) && !SvROK (callback)) \ |
960 | if (SvOK (callback) && !SvROK (callback)) \ |
513 | croak ("clalback must be undef or of reference type"); \ |
961 | croak ("callback must be undef or of reference type"); \ |
514 | \ |
962 | \ |
515 | Newz (0, req, 1, aio_cb); \ |
963 | Newz (0, req, 1, aio_cb); \ |
516 | if (!req) \ |
964 | if (!req) \ |
517 | croak ("out of memory during aio_req allocation"); \ |
965 | croak ("out of memory during aio_req allocation"); \ |
518 | \ |
966 | \ |
519 | req->callback = newSVsv (callback); |
967 | req->callback = newSVsv (callback); \ |
|
|
968 | req->pri = req_pri |
|
|
969 | |
|
|
970 | #define REQ_SEND \ |
|
|
971 | req_send (req); \ |
|
|
972 | \ |
|
|
973 | if (GIMME_V != G_VOID) \ |
|
|
974 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
520 | |
975 | |
521 | MODULE = IO::AIO PACKAGE = IO::AIO |
976 | MODULE = IO::AIO PACKAGE = IO::AIO |
522 | |
977 | |
523 | PROTOTYPES: ENABLE |
978 | PROTOTYPES: ENABLE |
524 | |
979 | |
525 | BOOT: |
980 | BOOT: |
526 | { |
981 | { |
|
|
982 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
983 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
984 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
985 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
986 | |
527 | create_pipe (); |
987 | create_pipe (); |
528 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
988 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
529 | } |
989 | } |
530 | |
990 | |
531 | void |
991 | void |
532 | min_parallel(nthreads) |
992 | min_parallel (nthreads) |
533 | int nthreads |
993 | int nthreads |
534 | PROTOTYPE: $ |
994 | PROTOTYPE: $ |
535 | |
995 | |
536 | void |
996 | void |
537 | max_parallel(nthreads) |
997 | max_parallel (nthreads) |
538 | int nthreads |
998 | int nthreads |
539 | PROTOTYPE: $ |
999 | PROTOTYPE: $ |
540 | |
1000 | |
541 | int |
1001 | int |
542 | max_outstanding(nreqs) |
1002 | max_outstanding (nreqs) |
543 | int nreqs |
1003 | int nreqs |
544 | PROTOTYPE: $ |
1004 | PROTOTYPE: $ |
545 | CODE: |
1005 | CODE: |
546 | RETVAL = max_outstanding; |
1006 | RETVAL = max_outstanding; |
547 | max_outstanding = nreqs; |
1007 | max_outstanding = nreqs; |
548 | |
1008 | |
549 | void |
1009 | void |
550 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1010 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
551 | SV * pathname |
1011 | SV * pathname |
552 | int flags |
1012 | int flags |
553 | int mode |
1013 | int mode |
554 | SV * callback |
1014 | SV * callback |
555 | PROTOTYPE: $$$;$ |
1015 | PROTOTYPE: $$$;$ |
556 | CODE: |
1016 | PPCODE: |
557 | { |
1017 | { |
558 | dREQ; |
1018 | dREQ; |
559 | |
1019 | |
560 | req->type = REQ_OPEN; |
1020 | req->type = REQ_OPEN; |
561 | req->data = newSVsv (pathname); |
1021 | req->data = newSVsv (pathname); |
562 | req->dataptr = SvPVbyte_nolen (req->data); |
1022 | req->dataptr = SvPVbyte_nolen (req->data); |
563 | req->fd = flags; |
1023 | req->fd = flags; |
564 | req->mode = mode; |
1024 | req->mode = mode; |
565 | |
1025 | |
566 | send_req (req); |
1026 | REQ_SEND; |
567 | } |
1027 | } |
568 | |
1028 | |
569 | void |
1029 | void |
570 | aio_close(fh,callback=&PL_sv_undef) |
1030 | aio_close (fh,callback=&PL_sv_undef) |
571 | SV * fh |
1031 | SV * fh |
572 | SV * callback |
1032 | SV * callback |
573 | PROTOTYPE: $;$ |
1033 | PROTOTYPE: $;$ |
574 | ALIAS: |
1034 | ALIAS: |
575 | aio_close = REQ_CLOSE |
1035 | aio_close = REQ_CLOSE |
576 | aio_fsync = REQ_FSYNC |
1036 | aio_fsync = REQ_FSYNC |
577 | aio_fdatasync = REQ_FDATASYNC |
1037 | aio_fdatasync = REQ_FDATASYNC |
578 | CODE: |
1038 | PPCODE: |
579 | { |
1039 | { |
580 | dREQ; |
1040 | dREQ; |
581 | |
1041 | |
582 | req->type = ix; |
1042 | req->type = ix; |
583 | req->fh = newSVsv (fh); |
1043 | req->fh = newSVsv (fh); |
584 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1044 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
585 | |
1045 | |
586 | send_req (req); |
1046 | REQ_SEND (req); |
587 | } |
1047 | } |
588 | |
1048 | |
589 | void |
1049 | void |
590 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1050 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
591 | SV * fh |
1051 | SV * fh |
592 | UV offset |
1052 | UV offset |
593 | IV length |
1053 | UV length |
594 | SV * data |
1054 | SV * data |
595 | IV dataoffset |
1055 | UV dataoffset |
596 | SV * callback |
1056 | SV * callback |
597 | ALIAS: |
1057 | ALIAS: |
598 | aio_read = REQ_READ |
1058 | aio_read = REQ_READ |
599 | aio_write = REQ_WRITE |
1059 | aio_write = REQ_WRITE |
600 | PROTOTYPE: $$$$$;$ |
1060 | PROTOTYPE: $$$$$;$ |
601 | CODE: |
1061 | PPCODE: |
602 | { |
1062 | { |
603 | aio_req req; |
1063 | aio_req req; |
604 | STRLEN svlen; |
1064 | STRLEN svlen; |
605 | char *svptr = SvPVbyte (data, svlen); |
1065 | char *svptr = SvPVbyte (data, svlen); |
606 | |
1066 | |
… | |
… | |
644 | { |
1104 | { |
645 | SvREADONLY_on (data); |
1105 | SvREADONLY_on (data); |
646 | req->data2ptr = (void *)data; |
1106 | req->data2ptr = (void *)data; |
647 | } |
1107 | } |
648 | |
1108 | |
649 | send_req (req); |
1109 | REQ_SEND; |
650 | } |
1110 | } |
651 | } |
1111 | } |
652 | |
1112 | |
653 | void |
1113 | void |
|
|
1114 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1115 | SV * out_fh |
|
|
1116 | SV * in_fh |
|
|
1117 | UV in_offset |
|
|
1118 | UV length |
|
|
1119 | SV * callback |
|
|
1120 | PROTOTYPE: $$$$;$ |
|
|
1121 | PPCODE: |
|
|
1122 | { |
|
|
1123 | dREQ; |
|
|
1124 | |
|
|
1125 | req->type = REQ_SENDFILE; |
|
|
1126 | req->fh = newSVsv (out_fh); |
|
|
1127 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1128 | req->fh2 = newSVsv (in_fh); |
|
|
1129 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1130 | req->offset = in_offset; |
|
|
1131 | req->length = length; |
|
|
1132 | |
|
|
1133 | REQ_SEND; |
|
|
1134 | } |
|
|
1135 | |
|
|
1136 | void |
654 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1137 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
655 | SV * fh |
1138 | SV * fh |
656 | UV offset |
1139 | UV offset |
657 | IV length |
1140 | IV length |
658 | SV * callback |
1141 | SV * callback |
659 | PROTOTYPE: $$$;$ |
1142 | PROTOTYPE: $$$;$ |
660 | CODE: |
1143 | PPCODE: |
661 | { |
1144 | { |
662 | dREQ; |
1145 | dREQ; |
663 | |
1146 | |
664 | req->type = REQ_READAHEAD; |
1147 | req->type = REQ_READAHEAD; |
665 | req->fh = newSVsv (fh); |
1148 | req->fh = newSVsv (fh); |
666 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1149 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
667 | req->offset = offset; |
1150 | req->offset = offset; |
668 | req->length = length; |
1151 | req->length = length; |
669 | |
1152 | |
670 | send_req (req); |
1153 | REQ_SEND; |
671 | } |
1154 | } |
672 | |
1155 | |
673 | void |
1156 | void |
674 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1157 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
675 | SV * fh_or_path |
1158 | SV * fh_or_path |
676 | SV * callback |
1159 | SV * callback |
677 | ALIAS: |
1160 | ALIAS: |
678 | aio_stat = REQ_STAT |
1161 | aio_stat = REQ_STAT |
679 | aio_lstat = REQ_LSTAT |
1162 | aio_lstat = REQ_LSTAT |
680 | CODE: |
1163 | PPCODE: |
681 | { |
1164 | { |
682 | dREQ; |
1165 | dREQ; |
683 | |
1166 | |
684 | New (0, req->statdata, 1, Stat_t); |
1167 | New (0, req->statdata, 1, Stat_t); |
685 | if (!req->statdata) |
1168 | if (!req->statdata) |
686 | { |
1169 | { |
687 | free_req (req); |
1170 | req_free (req); |
688 | croak ("out of memory during aio_req->statdata allocation"); |
1171 | croak ("out of memory during aio_req->statdata allocation"); |
689 | } |
1172 | } |
690 | |
1173 | |
691 | if (SvPOK (fh_or_path)) |
1174 | if (SvPOK (fh_or_path)) |
692 | { |
1175 | { |
… | |
… | |
699 | req->type = REQ_FSTAT; |
1182 | req->type = REQ_FSTAT; |
700 | req->fh = newSVsv (fh_or_path); |
1183 | req->fh = newSVsv (fh_or_path); |
701 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1184 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
702 | } |
1185 | } |
703 | |
1186 | |
704 | send_req (req); |
1187 | REQ_SEND; |
705 | } |
1188 | } |
706 | |
1189 | |
707 | void |
1190 | void |
708 | aio_unlink(pathname,callback=&PL_sv_undef) |
1191 | aio_unlink (pathname,callback=&PL_sv_undef) |
709 | SV * pathname |
1192 | SV * pathname |
710 | SV * callback |
1193 | SV * callback |
711 | ALIAS: |
1194 | ALIAS: |
712 | aio_unlink = REQ_UNLINK |
1195 | aio_unlink = REQ_UNLINK |
713 | aio_rmdir = REQ_RMDIR |
1196 | aio_rmdir = REQ_RMDIR |
|
|
1197 | aio_readdir = REQ_READDIR |
714 | CODE: |
1198 | PPCODE: |
715 | { |
1199 | { |
716 | dREQ; |
1200 | dREQ; |
717 | |
1201 | |
718 | req->type = ix; |
1202 | req->type = ix; |
719 | req->data = newSVsv (pathname); |
1203 | req->data = newSVsv (pathname); |
720 | req->dataptr = SvPVbyte_nolen (req->data); |
1204 | req->dataptr = SvPVbyte_nolen (req->data); |
721 | |
1205 | |
722 | send_req (req); |
1206 | REQ_SEND; |
723 | } |
1207 | } |
724 | |
1208 | |
725 | void |
1209 | void |
726 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1210 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
727 | SV * oldpath |
1211 | SV * oldpath |
728 | SV * newpath |
1212 | SV * newpath |
729 | SV * callback |
1213 | SV * callback |
|
|
1214 | ALIAS: |
|
|
1215 | aio_link = REQ_LINK |
|
|
1216 | aio_symlink = REQ_SYMLINK |
|
|
1217 | aio_rename = REQ_RENAME |
730 | CODE: |
1218 | PPCODE: |
731 | { |
1219 | { |
732 | dREQ; |
1220 | dREQ; |
733 | |
1221 | |
734 | req->type = REQ_SYMLINK; |
1222 | req->type = ix; |
735 | req->fh = newSVsv (oldpath); |
1223 | req->fh = newSVsv (oldpath); |
736 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1224 | req->data2ptr = SvPVbyte_nolen (req->fh); |
737 | req->data = newSVsv (newpath); |
1225 | req->data = newSVsv (newpath); |
738 | req->dataptr = SvPVbyte_nolen (req->data); |
1226 | req->dataptr = SvPVbyte_nolen (req->data); |
739 | |
1227 | |
740 | send_req (req); |
1228 | REQ_SEND; |
741 | } |
1229 | } |
742 | |
1230 | |
743 | void |
1231 | void |
|
|
1232 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1233 | double delay |
|
|
1234 | SV * callback |
|
|
1235 | PPCODE: |
|
|
1236 | { |
|
|
1237 | dREQ; |
|
|
1238 | |
|
|
1239 | req->type = REQ_SLEEP; |
|
|
1240 | req->fd = delay < 0. ? 0 : delay; |
|
|
1241 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1242 | |
|
|
1243 | REQ_SEND; |
|
|
1244 | } |
|
|
1245 | |
|
|
1246 | void |
|
|
1247 | aio_group (callback=&PL_sv_undef) |
|
|
1248 | SV * callback |
|
|
1249 | PROTOTYPE: ;$ |
|
|
1250 | PPCODE: |
|
|
1251 | { |
|
|
1252 | dREQ; |
|
|
1253 | |
|
|
1254 | req->type = REQ_GROUP; |
|
|
1255 | req_send (req); |
|
|
1256 | |
|
|
1257 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1258 | } |
|
|
1259 | |
|
|
1260 | void |
|
|
1261 | aio_nop (callback=&PL_sv_undef) |
|
|
1262 | SV * callback |
|
|
1263 | PPCODE: |
|
|
1264 | { |
|
|
1265 | dREQ; |
|
|
1266 | |
|
|
1267 | req->type = REQ_NOP; |
|
|
1268 | |
|
|
1269 | REQ_SEND; |
|
|
1270 | } |
|
|
1271 | |
|
|
1272 | #if 0 |
|
|
1273 | |
|
|
1274 | void |
|
|
1275 | aio_pri (int pri = DEFAULT_PRI) |
|
|
1276 | CODE: |
|
|
1277 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1278 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1279 | next_pri = pri + PRI_BIAS; |
|
|
1280 | |
|
|
1281 | #endif |
|
|
1282 | |
|
|
1283 | void |
744 | flush() |
1284 | flush () |
745 | PROTOTYPE: |
1285 | PROTOTYPE: |
746 | CODE: |
1286 | CODE: |
747 | while (nreqs) |
1287 | while (nreqs) |
748 | { |
1288 | { |
749 | poll_wait (); |
1289 | poll_wait (); |
… | |
… | |
789 | CODE: |
1329 | CODE: |
790 | RETVAL = nreqs; |
1330 | RETVAL = nreqs; |
791 | OUTPUT: |
1331 | OUTPUT: |
792 | RETVAL |
1332 | RETVAL |
793 | |
1333 | |
|
|
1334 | PROTOTYPES: DISABLE |
|
|
1335 | |
|
|
1336 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1337 | |
|
|
1338 | void |
|
|
1339 | cancel (aio_req_ornot req) |
|
|
1340 | PROTOTYPE: |
|
|
1341 | CODE: |
|
|
1342 | req_cancel (req); |
|
|
1343 | |
|
|
1344 | void |
|
|
1345 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1346 | CODE: |
|
|
1347 | SvREFCNT_dec (req->callback); |
|
|
1348 | req->callback = newSVsv (callback); |
|
|
1349 | |
|
|
1350 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1351 | |
|
|
1352 | void |
|
|
1353 | add (aio_req grp, ...) |
|
|
1354 | PPCODE: |
|
|
1355 | { |
|
|
1356 | int i; |
|
|
1357 | aio_req req; |
|
|
1358 | |
|
|
1359 | if (grp->fd == 2) |
|
|
1360 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1361 | |
|
|
1362 | for (i = 1; i < items; ++i ) |
|
|
1363 | { |
|
|
1364 | if (GIMME_V != G_VOID) |
|
|
1365 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1366 | |
|
|
1367 | req = SvAIO_REQ (ST (i)); |
|
|
1368 | |
|
|
1369 | if (req) |
|
|
1370 | { |
|
|
1371 | ++grp->length; |
|
|
1372 | req->grp = grp; |
|
|
1373 | |
|
|
1374 | req->grp_prev = 0; |
|
|
1375 | req->grp_next = grp->grp_first; |
|
|
1376 | |
|
|
1377 | if (grp->grp_first) |
|
|
1378 | grp->grp_first->grp_prev = req; |
|
|
1379 | |
|
|
1380 | grp->grp_first = req; |
|
|
1381 | } |
|
|
1382 | } |
|
|
1383 | } |
|
|
1384 | |
|
|
1385 | void |
|
|
1386 | result (aio_req grp, ...) |
|
|
1387 | CODE: |
|
|
1388 | { |
|
|
1389 | int i; |
|
|
1390 | AV *av = newAV (); |
|
|
1391 | |
|
|
1392 | for (i = 1; i < items; ++i ) |
|
|
1393 | av_push (av, newSVsv (ST (i))); |
|
|
1394 | |
|
|
1395 | SvREFCNT_dec (grp->data); |
|
|
1396 | grp->data = (SV *)av; |
|
|
1397 | } |
|
|
1398 | |
|
|
1399 | void |
|
|
1400 | feed_limit (aio_req grp, int limit) |
|
|
1401 | CODE: |
|
|
1402 | grp->fd2 = limit; |
|
|
1403 | aio_grp_feed (grp); |
|
|
1404 | |
|
|
1405 | void |
|
|
1406 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1407 | CODE: |
|
|
1408 | { |
|
|
1409 | SvREFCNT_dec (grp->fh2); |
|
|
1410 | grp->fh2 = newSVsv (callback); |
|
|
1411 | |
|
|
1412 | if (grp->fd2 <= 0) |
|
|
1413 | grp->fd2 = 2; |
|
|
1414 | |
|
|
1415 | aio_grp_feed (grp); |
|
|
1416 | } |
|
|
1417 | |