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1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux && !defined(_GNU_SOURCE) |
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5 | # define _GNU_SOURCE |
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6 | #endif |
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7 | |
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8 | /* just in case */ |
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9 | #define _REENTRANT 1 |
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10 | |
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11 | #include <errno.h> |
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12 | |
1 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
2 | #include "perl.h" |
14 | #include "perl.h" |
3 | #include "XSUB.h" |
15 | #include "XSUB.h" |
4 | |
16 | |
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17 | #include "autoconf/config.h" |
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18 | |
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19 | #include <pthread.h> |
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20 | |
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21 | #include <stddef.h> |
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22 | #include <errno.h> |
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23 | #include <sys/time.h> |
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24 | #include <sys/select.h> |
5 | #include <sys/types.h> |
25 | #include <sys/types.h> |
6 | #include <sys/stat.h> |
26 | #include <sys/stat.h> |
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27 | #include <limits.h> |
7 | #include <unistd.h> |
28 | #include <unistd.h> |
8 | #include <fcntl.h> |
29 | #include <fcntl.h> |
9 | #include <signal.h> |
30 | #include <signal.h> |
10 | #include <sched.h> |
31 | #include <sched.h> |
11 | #include <endian.h> |
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12 | |
32 | |
13 | #include <pthread.h> |
33 | #if HAVE_SENDFILE |
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34 | # if __linux |
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35 | # include <sys/sendfile.h> |
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36 | # elif __freebsd |
14 | #include <sys/syscall.h> |
37 | # include <sys/socket.h> |
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38 | # include <sys/uio.h> |
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39 | # elif __hpux |
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40 | # include <sys/socket.h> |
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41 | # elif __solaris /* not yet */ |
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42 | # include <sys/sendfile.h> |
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43 | # else |
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44 | # error sendfile support requested but not available |
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45 | # endif |
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46 | #endif |
15 | |
47 | |
16 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
48 | /* used for struct dirent, AIX doesn't provide it */ |
17 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
49 | #ifndef NAME_MAX |
18 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
50 | # define NAME_MAX 4096 |
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51 | #endif |
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52 | |
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53 | #ifndef PTHREAD_STACK_MIN |
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54 | /* care for broken platforms, e.g. windows */ |
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55 | # define PTHREAD_STACK_MIN 16384 |
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56 | #endif |
19 | |
57 | |
20 | #if __ia64 |
58 | #if __ia64 |
21 | # define STACKSIZE 65536 |
59 | # define STACKSIZE 65536 |
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60 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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61 | # define STACKSIZE PTHREAD_STACK_MIN |
22 | #else |
62 | #else |
23 | # define STACKSIZE 4096 |
63 | # define STACKSIZE 16384 |
24 | #endif |
64 | #endif |
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65 | |
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66 | /* buffer size for various temporary buffers */ |
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67 | #define AIO_BUFSIZE 65536 |
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68 | |
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69 | #define dBUF \ |
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70 | char *aio_buf; \ |
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71 | LOCK (wrklock); \ |
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72 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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73 | UNLOCK (wrklock); \ |
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74 | if (!aio_buf) \ |
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75 | return -1; |
25 | |
76 | |
26 | enum { |
77 | enum { |
27 | REQ_QUIT, |
78 | REQ_QUIT, |
28 | REQ_OPEN, REQ_CLOSE, |
79 | REQ_OPEN, REQ_CLOSE, |
29 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
80 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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81 | REQ_SENDFILE, |
30 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
82 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
31 | REQ_FSYNC, REQ_FDATASYNC, |
83 | REQ_FSYNC, REQ_FDATASYNC, |
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84 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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85 | REQ_READDIR, |
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86 | REQ_LINK, REQ_SYMLINK, |
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87 | REQ_GROUP, REQ_NOP, |
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88 | REQ_BUSY, |
32 | }; |
89 | }; |
33 | |
90 | |
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91 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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92 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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93 | |
34 | typedef struct aio_cb { |
94 | typedef struct aio_cb |
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95 | { |
35 | struct aio_cb *volatile next; |
96 | struct aio_cb *volatile next; |
36 | |
97 | |
37 | int type; |
98 | SV *data, *callback; |
38 | |
99 | SV *fh, *fh2; |
39 | int fd; |
100 | void *dataptr, *data2ptr; |
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101 | Stat_t *statdata; |
40 | off_t offset; |
102 | off_t offset; |
41 | size_t length; |
103 | size_t length; |
42 | ssize_t result; |
104 | ssize_t result; |
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105 | |
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106 | STRLEN dataoffset; |
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107 | int type; |
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108 | int fd, fd2; |
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109 | int errorno; |
43 | mode_t mode; /* open */ |
110 | mode_t mode; /* open */ |
44 | int errorno; |
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45 | SV *data, *callback; |
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46 | void *dataptr; |
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47 | STRLEN dataoffset; |
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48 | |
111 | |
49 | Stat_t *statdata; |
112 | unsigned char flags; |
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113 | unsigned char pri; |
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114 | |
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115 | SV *self; /* the perl counterpart of this request, if any */ |
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116 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
50 | } aio_cb; |
117 | } aio_cb; |
51 | |
118 | |
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119 | enum { |
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120 | FLAG_CANCELLED = 0x01, |
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121 | }; |
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122 | |
52 | typedef aio_cb *aio_req; |
123 | typedef aio_cb *aio_req; |
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124 | typedef aio_cb *aio_req_ornot; |
53 | |
125 | |
54 | static int started; |
126 | enum { |
55 | static int nreqs; |
127 | PRI_MIN = -4, |
56 | static int max_outstanding = 1<<30; |
128 | PRI_MAX = 4, |
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129 | |
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130 | DEFAULT_PRI = 0, |
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131 | PRI_BIAS = -PRI_MIN, |
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132 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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133 | }; |
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134 | |
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135 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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136 | |
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137 | static unsigned int started, wanted; |
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138 | static volatile unsigned int nreqs; |
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139 | static volatile unsigned int max_outstanding = 0xffffffff; |
57 | static int respipe [2]; |
140 | static int respipe [2]; |
58 | |
141 | |
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142 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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143 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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144 | #else |
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145 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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146 | #endif |
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147 | |
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148 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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149 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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150 | |
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151 | /* worker threads management */ |
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152 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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153 | |
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154 | typedef struct worker { |
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155 | /* locked by wrklock */ |
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156 | struct worker *prev, *next; |
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157 | |
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158 | pthread_t tid; |
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159 | |
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160 | /* locked by reslock, reqlock or wrklock */ |
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161 | aio_req req; /* currently processed request */ |
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162 | void *dbuf; |
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163 | DIR *dirp; |
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164 | } worker; |
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165 | |
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166 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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167 | |
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168 | static void worker_clear (worker *wrk) |
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169 | { |
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170 | if (wrk->dirp) |
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171 | { |
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172 | closedir (wrk->dirp); |
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173 | wrk->dirp = 0; |
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174 | } |
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175 | |
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176 | if (wrk->dbuf) |
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177 | { |
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178 | free (wrk->dbuf); |
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179 | wrk->dbuf = 0; |
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180 | } |
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181 | } |
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182 | |
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183 | static void worker_free (worker *wrk) |
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184 | { |
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185 | wrk->next->prev = wrk->prev; |
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186 | wrk->prev->next = wrk->next; |
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187 | |
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188 | free (wrk); |
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189 | } |
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190 | |
59 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
191 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
60 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
192 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
61 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
193 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
62 | |
194 | |
63 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
195 | /* |
64 | static volatile aio_req ress, rese; /* queue start, queue end */ |
196 | * a somewhat faster data structure might be nice, but |
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197 | * with 8 priorities this actually needs <20 insns |
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198 | * per shift, the most expensive operation. |
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199 | */ |
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200 | typedef struct { |
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201 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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202 | int size; |
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203 | } reqq; |
65 | |
204 | |
66 | static void |
205 | static reqq req_queue; |
67 | poll_wait () |
206 | static reqq res_queue; |
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207 | |
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208 | int reqq_push (reqq *q, aio_req req) |
68 | { |
209 | { |
69 | if (!nreqs) |
210 | int pri = req->pri; |
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211 | req->next = 0; |
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212 | |
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213 | if (q->qe[pri]) |
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214 | { |
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215 | q->qe[pri]->next = req; |
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216 | q->qe[pri] = req; |
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217 | } |
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218 | else |
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219 | q->qe[pri] = q->qs[pri] = req; |
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220 | |
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221 | return q->size++; |
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222 | } |
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223 | |
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224 | aio_req reqq_shift (reqq *q) |
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225 | { |
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226 | int pri; |
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227 | |
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228 | if (!q->size) |
70 | return; |
229 | return 0; |
71 | |
230 | |
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231 | --q->size; |
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232 | |
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233 | for (pri = NUM_PRI; pri--; ) |
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234 | { |
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235 | aio_req req = q->qs[pri]; |
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236 | |
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237 | if (req) |
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238 | { |
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239 | if (!(q->qs[pri] = req->next)) |
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240 | q->qe[pri] = 0; |
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241 | |
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242 | return req; |
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243 | } |
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244 | } |
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245 | |
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246 | abort (); |
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247 | } |
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248 | |
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249 | static int poll_cb (int max); |
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250 | static void req_invoke (aio_req req); |
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251 | static void req_free (aio_req req); |
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252 | static void req_cancel (aio_req req); |
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253 | |
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254 | /* must be called at most once */ |
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255 | static SV *req_sv (aio_req req, const char *klass) |
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256 | { |
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257 | if (!req->self) |
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258 | { |
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259 | req->self = (SV *)newHV (); |
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260 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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261 | } |
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262 | |
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263 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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264 | } |
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265 | |
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266 | static aio_req SvAIO_REQ (SV *sv) |
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267 | { |
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268 | MAGIC *mg; |
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269 | |
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270 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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271 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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272 | |
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273 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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274 | |
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275 | return mg ? (aio_req)mg->mg_ptr : 0; |
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276 | } |
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277 | |
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278 | static void aio_grp_feed (aio_req grp) |
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279 | { |
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280 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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281 | { |
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282 | int old_len = grp->length; |
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283 | |
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284 | if (grp->fh2 && SvOK (grp->fh2)) |
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285 | { |
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286 | dSP; |
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287 | |
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288 | ENTER; |
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289 | SAVETMPS; |
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290 | PUSHMARK (SP); |
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291 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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292 | PUTBACK; |
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293 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
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294 | SPAGAIN; |
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295 | FREETMPS; |
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296 | LEAVE; |
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297 | } |
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298 | |
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299 | /* stop if no progress has been made */ |
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300 | if (old_len == grp->length) |
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301 | { |
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302 | SvREFCNT_dec (grp->fh2); |
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303 | grp->fh2 = 0; |
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304 | break; |
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305 | } |
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306 | } |
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307 | } |
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308 | |
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309 | static void aio_grp_dec (aio_req grp) |
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310 | { |
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311 | --grp->length; |
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312 | |
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313 | /* call feeder, if applicable */ |
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314 | aio_grp_feed (grp); |
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315 | |
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316 | /* finish, if done */ |
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317 | if (!grp->length && grp->fd) |
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318 | { |
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319 | req_invoke (grp); |
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320 | req_free (grp); |
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321 | } |
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322 | } |
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323 | |
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324 | static void poll_wait () |
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325 | { |
72 | fd_set rfd; |
326 | fd_set rfd; |
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327 | |
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328 | while (nreqs) |
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329 | { |
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330 | int size; |
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331 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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332 | LOCK (reslock); |
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333 | #endif |
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334 | size = res_queue.size; |
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335 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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336 | UNLOCK (reslock); |
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337 | #endif |
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338 | |
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339 | if (size) |
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340 | return; |
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341 | |
73 | FD_ZERO(&rfd); |
342 | FD_ZERO(&rfd); |
74 | FD_SET(respipe [0], &rfd); |
343 | FD_SET(respipe [0], &rfd); |
75 | |
344 | |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
345 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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346 | } |
77 | } |
347 | } |
78 | |
348 | |
79 | static int |
349 | static void req_invoke (aio_req req) |
80 | poll_cb () |
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81 | { |
350 | { |
82 | dSP; |
351 | dSP; |
83 | int count = 0; |
352 | |
84 | aio_req req; |
353 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
85 | |
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86 | { |
354 | { |
87 | /* read and signals sent by the worker threads */ |
355 | errno = req->errorno; |
88 | char buf [32]; |
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89 | while (read (respipe [0], buf, 32) > 0) |
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90 | ; |
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91 | } |
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92 | |
356 | |
93 | for (;;) |
357 | ENTER; |
94 | { |
358 | SAVETMPS; |
95 | pthread_mutex_lock (&reslock); |
359 | PUSHMARK (SP); |
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360 | EXTEND (SP, 1); |
96 | |
361 | |
97 | req = ress; |
362 | switch (req->type) |
98 | |
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99 | if (ress) |
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100 | { |
363 | { |
101 | ress = ress->next; |
364 | case REQ_READDIR: |
102 | if (!ress) rese = 0; |
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103 | } |
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104 | |
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105 | pthread_mutex_unlock (&reslock); |
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106 | |
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107 | if (!req) |
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108 | break; |
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109 | |
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110 | nreqs--; |
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111 | |
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112 | if (req->type == REQ_QUIT) |
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113 | started--; |
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114 | else |
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115 | { |
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116 | int errorno = errno; |
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117 | errno = req->errorno; |
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118 | |
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119 | if (req->type == REQ_READ) |
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120 | SvCUR_set (req->data, req->dataoffset |
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121 | + req->result > 0 ? req->result : 0); |
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122 | |
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123 | if (req->data) |
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124 | SvREFCNT_dec (req->data); |
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125 | |
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126 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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127 | { |
365 | { |
128 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
366 | SV *rv = &PL_sv_undef; |
129 | PL_laststatval = req->result; |
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130 | PL_statcache = *(req->statdata); |
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131 | |
367 | |
132 | Safefree (req->statdata); |
368 | if (req->result >= 0) |
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369 | { |
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370 | int i; |
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371 | char *buf = req->data2ptr; |
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372 | AV *av = newAV (); |
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373 | |
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374 | av_extend (av, req->result - 1); |
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375 | |
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376 | for (i = 0; i < req->result; ++i) |
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377 | { |
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378 | SV *sv = newSVpv (buf, 0); |
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379 | |
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380 | av_store (av, i, sv); |
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381 | buf += SvCUR (sv) + 1; |
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382 | } |
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383 | |
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384 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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385 | } |
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386 | |
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387 | PUSHs (rv); |
133 | } |
388 | } |
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389 | break; |
134 | |
390 | |
135 | PUSHMARK (SP); |
391 | case REQ_OPEN: |
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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137 | |
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138 | if (req->type == REQ_OPEN) |
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139 | { |
392 | { |
140 | /* convert fd to fh */ |
393 | /* convert fd to fh */ |
141 | SV *fh; |
394 | SV *fh; |
142 | |
395 | |
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396 | PUSHs (sv_2mortal (newSViv (req->result))); |
143 | PUTBACK; |
397 | PUTBACK; |
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
398 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
145 | SPAGAIN; |
399 | SPAGAIN; |
146 | |
400 | |
147 | fh = POPs; |
401 | fh = SvREFCNT_inc (POPs); |
148 | |
402 | |
149 | PUSHMARK (SP); |
403 | PUSHMARK (SP); |
150 | XPUSHs (fh); |
404 | XPUSHs (sv_2mortal (fh)); |
151 | } |
405 | } |
|
|
406 | break; |
152 | |
407 | |
153 | if (SvOK (req->callback)) |
408 | case REQ_GROUP: |
|
|
409 | req->fd = 2; /* mark group as finished */ |
|
|
410 | |
|
|
411 | if (req->data) |
|
|
412 | { |
|
|
413 | int i; |
|
|
414 | AV *av = (AV *)req->data; |
|
|
415 | |
|
|
416 | EXTEND (SP, AvFILL (av) + 1); |
|
|
417 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
418 | PUSHs (*av_fetch (av, i, 0)); |
|
|
419 | } |
|
|
420 | break; |
|
|
421 | |
|
|
422 | case REQ_NOP: |
|
|
423 | case REQ_BUSY: |
|
|
424 | break; |
|
|
425 | |
|
|
426 | default: |
|
|
427 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
428 | break; |
|
|
429 | } |
|
|
430 | |
|
|
431 | |
|
|
432 | PUTBACK; |
|
|
433 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
434 | SPAGAIN; |
|
|
435 | |
|
|
436 | FREETMPS; |
|
|
437 | LEAVE; |
|
|
438 | } |
|
|
439 | |
|
|
440 | if (req->grp) |
|
|
441 | { |
|
|
442 | aio_req grp = req->grp; |
|
|
443 | |
|
|
444 | /* unlink request */ |
|
|
445 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
446 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
447 | |
|
|
448 | if (grp->grp_first == req) |
|
|
449 | grp->grp_first = req->grp_next; |
|
|
450 | |
|
|
451 | aio_grp_dec (grp); |
|
|
452 | } |
|
|
453 | |
|
|
454 | if (SvTRUE (ERRSV)) |
|
|
455 | { |
|
|
456 | req_free (req); |
|
|
457 | croak (0); |
|
|
458 | } |
|
|
459 | } |
|
|
460 | |
|
|
461 | static void req_free (aio_req req) |
|
|
462 | { |
|
|
463 | if (req->self) |
|
|
464 | { |
|
|
465 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
466 | SvREFCNT_dec (req->self); |
|
|
467 | } |
|
|
468 | |
|
|
469 | SvREFCNT_dec (req->data); |
|
|
470 | SvREFCNT_dec (req->fh); |
|
|
471 | SvREFCNT_dec (req->fh2); |
|
|
472 | SvREFCNT_dec (req->callback); |
|
|
473 | Safefree (req->statdata); |
|
|
474 | |
|
|
475 | if (req->type == REQ_READDIR) |
|
|
476 | free (req->data2ptr); |
|
|
477 | |
|
|
478 | Safefree (req); |
|
|
479 | } |
|
|
480 | |
|
|
481 | static void req_cancel_subs (aio_req grp) |
|
|
482 | { |
|
|
483 | aio_req sub; |
|
|
484 | |
|
|
485 | if (grp->type != REQ_GROUP) |
|
|
486 | return; |
|
|
487 | |
|
|
488 | SvREFCNT_dec (grp->fh2); |
|
|
489 | grp->fh2 = 0; |
|
|
490 | |
|
|
491 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
492 | req_cancel (sub); |
|
|
493 | } |
|
|
494 | |
|
|
495 | static void req_cancel (aio_req req) |
|
|
496 | { |
|
|
497 | req->flags |= FLAG_CANCELLED; |
|
|
498 | |
|
|
499 | req_cancel_subs (req); |
|
|
500 | } |
|
|
501 | |
|
|
502 | static int poll_cb (int max) |
|
|
503 | { |
|
|
504 | dSP; |
|
|
505 | int count = 0; |
|
|
506 | int do_croak = 0; |
|
|
507 | aio_req req; |
|
|
508 | |
|
|
509 | for (;;) |
|
|
510 | { |
|
|
511 | while (max <= 0 || count < max) |
|
|
512 | { |
|
|
513 | LOCK (reslock); |
|
|
514 | req = reqq_shift (&res_queue); |
|
|
515 | |
|
|
516 | if (req) |
154 | { |
517 | { |
155 | PUTBACK; |
518 | if (!res_queue.size) |
156 | call_sv (req->callback, G_VOID | G_EVAL); |
519 | { |
157 | SPAGAIN; |
520 | /* read any signals sent by the worker threads */ |
|
|
521 | char buf [32]; |
|
|
522 | while (read (respipe [0], buf, 32) == 32) |
|
|
523 | ; |
|
|
524 | } |
158 | } |
525 | } |
|
|
526 | |
|
|
527 | UNLOCK (reslock); |
|
|
528 | |
|
|
529 | if (!req) |
|
|
530 | break; |
|
|
531 | |
|
|
532 | --nreqs; |
|
|
533 | |
|
|
534 | if (req->type == REQ_QUIT) |
|
|
535 | --started; |
|
|
536 | else if (req->type == REQ_GROUP && req->length) |
159 | |
537 | { |
160 | if (req->callback) |
538 | req->fd = 1; /* mark request as delayed */ |
161 | SvREFCNT_dec (req->callback); |
539 | continue; |
|
|
540 | } |
|
|
541 | else |
|
|
542 | { |
|
|
543 | if (req->type == REQ_READ) |
|
|
544 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
162 | |
545 | |
163 | errno = errorno; |
546 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
547 | SvREADONLY_off (req->data); |
|
|
548 | |
|
|
549 | if (req->statdata) |
|
|
550 | { |
|
|
551 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
552 | PL_laststatval = req->result; |
|
|
553 | PL_statcache = *(req->statdata); |
|
|
554 | } |
|
|
555 | |
|
|
556 | req_invoke (req); |
|
|
557 | |
164 | count++; |
558 | count++; |
|
|
559 | } |
|
|
560 | |
|
|
561 | req_free (req); |
165 | } |
562 | } |
166 | |
563 | |
167 | Safefree (req); |
564 | if (nreqs <= max_outstanding) |
|
|
565 | break; |
|
|
566 | |
|
|
567 | poll_wait (); |
|
|
568 | |
|
|
569 | max = 0; |
168 | } |
570 | } |
169 | |
571 | |
170 | return count; |
572 | return count; |
171 | } |
573 | } |
172 | |
574 | |
173 | static void *aio_proc(void *arg); |
575 | static void *aio_proc(void *arg); |
174 | |
576 | |
175 | static void |
|
|
176 | start_thread (void) |
577 | static void start_thread (void) |
177 | { |
578 | { |
178 | sigset_t fullsigset, oldsigset; |
579 | sigset_t fullsigset, oldsigset; |
179 | pthread_t tid; |
|
|
180 | pthread_attr_t attr; |
580 | pthread_attr_t attr; |
|
|
581 | |
|
|
582 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
583 | |
|
|
584 | if (!wrk) |
|
|
585 | croak ("unable to allocate worker thread data"); |
181 | |
586 | |
182 | pthread_attr_init (&attr); |
587 | pthread_attr_init (&attr); |
183 | pthread_attr_setstacksize (&attr, STACKSIZE); |
588 | pthread_attr_setstacksize (&attr, STACKSIZE); |
184 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
589 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
185 | |
590 | |
186 | sigfillset (&fullsigset); |
591 | sigfillset (&fullsigset); |
|
|
592 | |
|
|
593 | LOCK (wrklock); |
187 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
594 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
188 | |
595 | |
189 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
596 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
597 | { |
|
|
598 | wrk->prev = &wrk_first; |
|
|
599 | wrk->next = wrk_first.next; |
|
|
600 | wrk_first.next->prev = wrk; |
|
|
601 | wrk_first.next = wrk; |
190 | started++; |
602 | ++started; |
|
|
603 | } |
|
|
604 | else |
|
|
605 | free (wrk); |
191 | |
606 | |
192 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
607 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
608 | UNLOCK (wrklock); |
193 | } |
609 | } |
194 | |
610 | |
195 | static void |
611 | static void req_send (aio_req req) |
196 | send_req (aio_req req) |
|
|
197 | { |
612 | { |
|
|
613 | while (started < wanted && nreqs >= started) |
|
|
614 | start_thread (); |
|
|
615 | |
198 | nreqs++; |
616 | ++nreqs; |
199 | |
617 | |
200 | pthread_mutex_lock (&reqlock); |
618 | LOCK (reqlock); |
|
|
619 | reqq_push (&req_queue, req); |
|
|
620 | pthread_cond_signal (&reqwait); |
|
|
621 | UNLOCK (reqlock); |
|
|
622 | } |
201 | |
623 | |
202 | req->next = 0; |
624 | static void end_thread (void) |
|
|
625 | { |
|
|
626 | aio_req req; |
203 | |
627 | |
|
|
628 | Newz (0, req, 1, aio_cb); |
|
|
629 | |
|
|
630 | req->type = REQ_QUIT; |
|
|
631 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
632 | |
|
|
633 | req_send (req); |
|
|
634 | } |
|
|
635 | |
|
|
636 | static void min_parallel (int nthreads) |
|
|
637 | { |
|
|
638 | if (wanted < nthreads) |
|
|
639 | wanted = nthreads; |
|
|
640 | } |
|
|
641 | |
|
|
642 | static void max_parallel (int nthreads) |
|
|
643 | { |
|
|
644 | int cur = started; |
|
|
645 | |
|
|
646 | if (wanted > nthreads) |
|
|
647 | wanted = nthreads; |
|
|
648 | |
|
|
649 | while (cur > wanted) |
|
|
650 | { |
|
|
651 | end_thread (); |
|
|
652 | cur--; |
|
|
653 | } |
|
|
654 | |
|
|
655 | while (started > wanted) |
|
|
656 | { |
|
|
657 | poll_wait (); |
|
|
658 | poll_cb (0); |
|
|
659 | } |
|
|
660 | } |
|
|
661 | |
|
|
662 | static void create_pipe () |
|
|
663 | { |
|
|
664 | if (pipe (respipe)) |
|
|
665 | croak ("unable to initialize result pipe"); |
|
|
666 | |
|
|
667 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
668 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
669 | |
|
|
670 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
671 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
672 | } |
|
|
673 | |
|
|
674 | /*****************************************************************************/ |
|
|
675 | /* work around various missing functions */ |
|
|
676 | |
|
|
677 | #if !HAVE_PREADWRITE |
|
|
678 | # define pread aio_pread |
|
|
679 | # define pwrite aio_pwrite |
|
|
680 | |
|
|
681 | /* |
|
|
682 | * make our pread/pwrite safe against themselves, but not against |
|
|
683 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
684 | * but that's your problem, not mine. |
|
|
685 | */ |
|
|
686 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
687 | |
|
|
688 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
689 | { |
|
|
690 | ssize_t res; |
|
|
691 | off_t ooffset; |
|
|
692 | |
|
|
693 | LOCK (preadwritelock); |
|
|
694 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
695 | lseek (fd, offset, SEEK_SET); |
|
|
696 | res = read (fd, buf, count); |
|
|
697 | lseek (fd, ooffset, SEEK_SET); |
|
|
698 | UNLOCK (preadwritelock); |
|
|
699 | |
|
|
700 | return res; |
|
|
701 | } |
|
|
702 | |
|
|
703 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
704 | { |
|
|
705 | ssize_t res; |
|
|
706 | off_t ooffset; |
|
|
707 | |
|
|
708 | LOCK (preadwritelock); |
|
|
709 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
710 | lseek (fd, offset, SEEK_SET); |
|
|
711 | res = write (fd, buf, count); |
|
|
712 | lseek (fd, offset, SEEK_SET); |
|
|
713 | UNLOCK (preadwritelock); |
|
|
714 | |
|
|
715 | return res; |
|
|
716 | } |
|
|
717 | #endif |
|
|
718 | |
|
|
719 | #if !HAVE_FDATASYNC |
|
|
720 | # define fdatasync fsync |
|
|
721 | #endif |
|
|
722 | |
|
|
723 | #if !HAVE_READAHEAD |
|
|
724 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
|
|
725 | |
|
|
726 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
|
|
727 | { |
|
|
728 | dBUF; |
|
|
729 | |
|
|
730 | while (count > 0) |
|
|
731 | { |
|
|
732 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
|
|
733 | |
|
|
734 | pread (fd, aio_buf, len, offset); |
|
|
735 | offset += len; |
|
|
736 | count -= len; |
|
|
737 | } |
|
|
738 | |
|
|
739 | errno = 0; |
|
|
740 | } |
|
|
741 | |
|
|
742 | #endif |
|
|
743 | |
|
|
744 | #if !HAVE_READDIR_R |
|
|
745 | # define readdir_r aio_readdir_r |
|
|
746 | |
|
|
747 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
748 | |
|
|
749 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
750 | { |
|
|
751 | struct dirent *e; |
|
|
752 | int errorno; |
|
|
753 | |
|
|
754 | LOCK (readdirlock); |
|
|
755 | |
|
|
756 | e = readdir (dirp); |
|
|
757 | errorno = errno; |
|
|
758 | |
204 | if (reqe) |
759 | if (e) |
205 | { |
760 | { |
206 | reqe->next = req; |
761 | *res = ent; |
207 | reqe = req; |
762 | strcpy (ent->d_name, e->d_name); |
208 | } |
763 | } |
209 | else |
764 | else |
210 | reqe = reqs = req; |
765 | *res = 0; |
211 | |
766 | |
212 | pthread_cond_signal (&reqwait); |
767 | UNLOCK (readdirlock); |
213 | pthread_mutex_unlock (&reqlock); |
|
|
214 | |
768 | |
215 | while (nreqs > max_outstanding) |
769 | errno = errorno; |
|
|
770 | return e ? 0 : -1; |
|
|
771 | } |
|
|
772 | #endif |
|
|
773 | |
|
|
774 | /* sendfile always needs emulation */ |
|
|
775 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
776 | { |
|
|
777 | ssize_t res; |
|
|
778 | |
|
|
779 | if (!count) |
|
|
780 | return 0; |
|
|
781 | |
|
|
782 | #if HAVE_SENDFILE |
|
|
783 | # if __linux |
|
|
784 | res = sendfile (ofd, ifd, &offset, count); |
|
|
785 | |
|
|
786 | # elif __freebsd |
|
|
787 | /* |
|
|
788 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
789 | * wasted on making it similar to other I/O functions. |
|
|
790 | */ |
|
|
791 | { |
|
|
792 | off_t sbytes; |
|
|
793 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
794 | |
|
|
795 | if (res < 0 && sbytes) |
|
|
796 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
797 | res = sbytes; |
|
|
798 | } |
|
|
799 | |
|
|
800 | # elif __hpux |
|
|
801 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
802 | |
|
|
803 | # elif __solaris |
|
|
804 | { |
|
|
805 | struct sendfilevec vec; |
|
|
806 | size_t sbytes; |
|
|
807 | |
|
|
808 | vec.sfv_fd = ifd; |
|
|
809 | vec.sfv_flag = 0; |
|
|
810 | vec.sfv_off = offset; |
|
|
811 | vec.sfv_len = count; |
|
|
812 | |
|
|
813 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
814 | |
|
|
815 | if (res < 0 && sbytes) |
|
|
816 | res = sbytes; |
|
|
817 | } |
|
|
818 | |
|
|
819 | # endif |
|
|
820 | #else |
|
|
821 | res = -1; |
|
|
822 | errno = ENOSYS; |
|
|
823 | #endif |
|
|
824 | |
|
|
825 | if (res < 0 |
|
|
826 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
827 | #if __solaris |
|
|
828 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
829 | #endif |
|
|
830 | ) |
|
|
831 | ) |
|
|
832 | { |
|
|
833 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
834 | dBUF; |
|
|
835 | |
|
|
836 | res = 0; |
|
|
837 | |
|
|
838 | while (count) |
|
|
839 | { |
|
|
840 | ssize_t cnt; |
|
|
841 | |
|
|
842 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
843 | |
|
|
844 | if (cnt <= 0) |
|
|
845 | { |
|
|
846 | if (cnt && !res) res = -1; |
|
|
847 | break; |
|
|
848 | } |
|
|
849 | |
|
|
850 | cnt = write (ofd, aio_buf, cnt); |
|
|
851 | |
|
|
852 | if (cnt <= 0) |
|
|
853 | { |
|
|
854 | if (cnt && !res) res = -1; |
|
|
855 | break; |
|
|
856 | } |
|
|
857 | |
|
|
858 | offset += cnt; |
|
|
859 | res += cnt; |
|
|
860 | count -= cnt; |
|
|
861 | } |
|
|
862 | } |
|
|
863 | |
|
|
864 | return res; |
|
|
865 | } |
|
|
866 | |
|
|
867 | /* read a full directory */ |
|
|
868 | static void scandir_ (aio_req req, worker *self) |
|
|
869 | { |
|
|
870 | DIR *dirp; |
|
|
871 | union |
|
|
872 | { |
|
|
873 | struct dirent d; |
|
|
874 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
875 | } *u; |
|
|
876 | struct dirent *entp; |
|
|
877 | char *name, *names; |
|
|
878 | int memlen = 4096; |
|
|
879 | int memofs = 0; |
|
|
880 | int res = 0; |
|
|
881 | int errorno; |
|
|
882 | |
|
|
883 | LOCK (wrklock); |
|
|
884 | self->dirp = dirp = opendir (req->dataptr); |
|
|
885 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
886 | req->data2ptr = names = malloc (memlen); |
|
|
887 | UNLOCK (wrklock); |
|
|
888 | |
|
|
889 | if (dirp && u && names) |
|
|
890 | for (;;) |
216 | { |
891 | { |
217 | poll_wait (); |
892 | errno = 0; |
218 | poll_cb (); |
893 | readdir_r (dirp, &u->d, &entp); |
|
|
894 | |
|
|
895 | if (!entp) |
|
|
896 | break; |
|
|
897 | |
|
|
898 | name = entp->d_name; |
|
|
899 | |
|
|
900 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
901 | { |
|
|
902 | int len = strlen (name) + 1; |
|
|
903 | |
|
|
904 | res++; |
|
|
905 | |
|
|
906 | while (memofs + len > memlen) |
|
|
907 | { |
|
|
908 | memlen *= 2; |
|
|
909 | LOCK (wrklock); |
|
|
910 | req->data2ptr = names = realloc (names, memlen); |
|
|
911 | UNLOCK (wrklock); |
|
|
912 | |
|
|
913 | if (!names) |
|
|
914 | break; |
|
|
915 | } |
|
|
916 | |
|
|
917 | memcpy (names + memofs, name, len); |
|
|
918 | memofs += len; |
|
|
919 | } |
219 | } |
920 | } |
220 | } |
|
|
221 | |
921 | |
222 | static void |
922 | if (errno) |
223 | end_thread (void) |
923 | res = -1; |
224 | { |
924 | |
225 | aio_req req; |
925 | req->result = res; |
226 | New (0, req, 1, aio_cb); |
|
|
227 | req->type = REQ_QUIT; |
|
|
228 | |
|
|
229 | send_req (req); |
|
|
230 | } |
926 | } |
231 | |
927 | |
232 | static void |
928 | /*****************************************************************************/ |
233 | read_write (int dowrite, int fd, off_t offset, size_t length, |
|
|
234 | SV *data, STRLEN dataoffset, SV *callback) |
|
|
235 | { |
|
|
236 | aio_req req; |
|
|
237 | STRLEN svlen; |
|
|
238 | char *svptr = SvPV (data, svlen); |
|
|
239 | |
929 | |
240 | SvUPGRADE (data, SVt_PV); |
|
|
241 | SvPOK_on (data); |
|
|
242 | |
|
|
243 | if (dataoffset < 0) |
|
|
244 | dataoffset += svlen; |
|
|
245 | |
|
|
246 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
247 | croak ("data offset outside of string"); |
|
|
248 | |
|
|
249 | if (dowrite) |
|
|
250 | { |
|
|
251 | /* write: check length and adjust. */ |
|
|
252 | if (length < 0 || length + dataoffset > svlen) |
|
|
253 | length = svlen - dataoffset; |
|
|
254 | } |
|
|
255 | else |
|
|
256 | { |
|
|
257 | /* read: grow scalar as necessary */ |
|
|
258 | svptr = SvGROW (data, length + dataoffset); |
|
|
259 | } |
|
|
260 | |
|
|
261 | if (length < 0) |
|
|
262 | croak ("length must not be negative"); |
|
|
263 | |
|
|
264 | Newz (0, req, 1, aio_cb); |
|
|
265 | |
|
|
266 | if (!req) |
|
|
267 | croak ("out of memory during aio_req allocation"); |
|
|
268 | |
|
|
269 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
|
|
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 | |
|
|
277 | send_req (req); |
|
|
278 | } |
|
|
279 | |
|
|
280 | static void * |
|
|
281 | aio_proc (void *thr_arg) |
930 | static void *aio_proc (void *thr_arg) |
282 | { |
931 | { |
283 | aio_req req; |
932 | aio_req req; |
284 | int type; |
933 | int type; |
|
|
934 | worker *self = (worker *)thr_arg; |
285 | |
935 | |
286 | do |
936 | do |
287 | { |
937 | { |
288 | pthread_mutex_lock (&reqlock); |
938 | LOCK (reqlock); |
289 | |
939 | |
290 | for (;;) |
940 | for (;;) |
291 | { |
941 | { |
292 | req = reqs; |
942 | self->req = req = reqq_shift (&req_queue); |
293 | |
|
|
294 | if (reqs) |
|
|
295 | { |
|
|
296 | reqs = reqs->next; |
|
|
297 | if (!reqs) reqe = 0; |
|
|
298 | } |
|
|
299 | |
943 | |
300 | if (req) |
944 | if (req) |
301 | break; |
945 | break; |
302 | |
946 | |
303 | pthread_cond_wait (&reqwait, &reqlock); |
947 | pthread_cond_wait (&reqwait, &reqlock); |
304 | } |
948 | } |
305 | |
949 | |
306 | pthread_mutex_unlock (&reqlock); |
950 | UNLOCK (reqlock); |
307 | |
951 | |
308 | errno = 0; /* strictly unnecessary */ |
952 | errno = 0; /* strictly unnecessary */ |
|
|
953 | type = req->type; /* remember type for QUIT check */ |
309 | |
954 | |
310 | type = req->type; |
955 | if (!(req->flags & FLAG_CANCELLED)) |
311 | |
|
|
312 | switch (type) |
956 | switch (type) |
313 | { |
957 | { |
314 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
958 | 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; |
959 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
316 | #if SYS_readahead |
960 | |
317 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
961 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
318 | #else |
962 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
319 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
|
|
320 | #endif |
|
|
321 | |
963 | |
322 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
964 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
323 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
965 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
324 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
966 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
325 | |
967 | |
326 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
968 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
327 | case REQ_CLOSE: req->result = close (req->fd); break; |
969 | case REQ_CLOSE: req->result = close (req->fd); break; |
328 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
970 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
329 | |
|
|
330 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
971 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
972 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
973 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
974 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
975 | |
331 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
976 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
|
|
977 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
978 | case REQ_READDIR: scandir_ (req, self); break; |
332 | |
979 | |
|
|
980 | case REQ_BUSY: |
|
|
981 | { |
|
|
982 | struct timeval tv; |
|
|
983 | |
|
|
984 | tv.tv_sec = req->fd; |
|
|
985 | tv.tv_usec = req->fd2; |
|
|
986 | |
|
|
987 | req->result = select (0, 0, 0, 0, &tv); |
|
|
988 | } |
|
|
989 | |
|
|
990 | case REQ_GROUP: |
|
|
991 | case REQ_NOP: |
333 | case REQ_QUIT: |
992 | case REQ_QUIT: |
334 | break; |
993 | break; |
335 | |
994 | |
336 | default: |
995 | default: |
337 | req->result = ENOSYS; |
996 | req->result = ENOSYS; |
338 | break; |
997 | break; |
339 | } |
998 | } |
340 | |
999 | |
341 | req->errorno = errno; |
1000 | req->errorno = errno; |
342 | |
1001 | |
343 | pthread_mutex_lock (&reslock); |
1002 | LOCK (reslock); |
344 | |
1003 | |
345 | req->next = 0; |
1004 | if (!reqq_push (&res_queue, req)) |
346 | |
|
|
347 | if (rese) |
|
|
348 | { |
|
|
349 | rese->next = req; |
|
|
350 | rese = req; |
|
|
351 | } |
|
|
352 | else |
|
|
353 | { |
|
|
354 | rese = ress = req; |
|
|
355 | |
|
|
356 | /* write a dummy byte to the pipe so fh becomes ready */ |
1005 | /* write a dummy byte to the pipe so fh becomes ready */ |
357 | write (respipe [1], &respipe, 1); |
1006 | write (respipe [1], &respipe, 1); |
358 | } |
|
|
359 | |
1007 | |
360 | pthread_mutex_unlock (&reslock); |
1008 | self->req = 0; |
|
|
1009 | worker_clear (self); |
|
|
1010 | |
|
|
1011 | UNLOCK (reslock); |
361 | } |
1012 | } |
362 | while (type != REQ_QUIT); |
1013 | while (type != REQ_QUIT); |
363 | |
1014 | |
|
|
1015 | LOCK (wrklock); |
|
|
1016 | worker_free (self); |
|
|
1017 | UNLOCK (wrklock); |
|
|
1018 | |
364 | return 0; |
1019 | return 0; |
365 | } |
1020 | } |
366 | |
1021 | |
|
|
1022 | /*****************************************************************************/ |
|
|
1023 | |
|
|
1024 | static void atfork_prepare (void) |
|
|
1025 | { |
|
|
1026 | LOCK (wrklock); |
|
|
1027 | LOCK (reqlock); |
|
|
1028 | LOCK (reslock); |
|
|
1029 | #if !HAVE_PREADWRITE |
|
|
1030 | LOCK (preadwritelock); |
|
|
1031 | #endif |
|
|
1032 | #if !HAVE_READDIR_R |
|
|
1033 | LOCK (readdirlock); |
|
|
1034 | #endif |
|
|
1035 | } |
|
|
1036 | |
|
|
1037 | static void atfork_parent (void) |
|
|
1038 | { |
|
|
1039 | #if !HAVE_READDIR_R |
|
|
1040 | UNLOCK (readdirlock); |
|
|
1041 | #endif |
|
|
1042 | #if !HAVE_PREADWRITE |
|
|
1043 | UNLOCK (preadwritelock); |
|
|
1044 | #endif |
|
|
1045 | UNLOCK (reslock); |
|
|
1046 | UNLOCK (reqlock); |
|
|
1047 | UNLOCK (wrklock); |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | static void atfork_child (void) |
|
|
1051 | { |
|
|
1052 | aio_req prv; |
|
|
1053 | |
|
|
1054 | while (prv = reqq_shift (&req_queue)) |
|
|
1055 | req_free (prv); |
|
|
1056 | |
|
|
1057 | while (prv = reqq_shift (&res_queue)) |
|
|
1058 | req_free (prv); |
|
|
1059 | |
|
|
1060 | while (wrk_first.next != &wrk_first) |
|
|
1061 | { |
|
|
1062 | worker *wrk = wrk_first.next; |
|
|
1063 | |
|
|
1064 | if (wrk->req) |
|
|
1065 | req_free (wrk->req); |
|
|
1066 | |
|
|
1067 | worker_clear (wrk); |
|
|
1068 | worker_free (wrk); |
|
|
1069 | } |
|
|
1070 | |
|
|
1071 | started = 0; |
|
|
1072 | nreqs = 0; |
|
|
1073 | |
|
|
1074 | close (respipe [0]); |
|
|
1075 | close (respipe [1]); |
|
|
1076 | create_pipe (); |
|
|
1077 | |
|
|
1078 | atfork_parent (); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | #define dREQ \ |
|
|
1082 | aio_req req; \ |
|
|
1083 | int req_pri = next_pri; \ |
|
|
1084 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1085 | \ |
|
|
1086 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1087 | croak ("callback must be undef or of reference type"); \ |
|
|
1088 | \ |
|
|
1089 | Newz (0, req, 1, aio_cb); \ |
|
|
1090 | if (!req) \ |
|
|
1091 | croak ("out of memory during aio_req allocation"); \ |
|
|
1092 | \ |
|
|
1093 | req->callback = newSVsv (callback); \ |
|
|
1094 | req->pri = req_pri |
|
|
1095 | |
|
|
1096 | #define REQ_SEND \ |
|
|
1097 | req_send (req); \ |
|
|
1098 | \ |
|
|
1099 | if (GIMME_V != G_VOID) \ |
|
|
1100 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1101 | |
367 | MODULE = IO::AIO PACKAGE = IO::AIO |
1102 | MODULE = IO::AIO PACKAGE = IO::AIO |
368 | |
1103 | |
369 | PROTOTYPES: ENABLE |
1104 | PROTOTYPES: ENABLE |
370 | |
1105 | |
371 | BOOT: |
1106 | BOOT: |
372 | { |
1107 | { |
373 | if (pipe (respipe)) |
1108 | HV *stash = gv_stashpv ("IO::AIO", 1); |
374 | croak ("unable to initialize result pipe"); |
1109 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1110 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1111 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
375 | |
1112 | |
376 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
1113 | create_pipe (); |
377 | croak ("cannot set result pipe to nonblocking mode"); |
1114 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
378 | |
|
|
379 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
380 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
381 | } |
1115 | } |
382 | |
1116 | |
383 | void |
1117 | void |
384 | min_parallel(nthreads) |
1118 | min_parallel (int nthreads) |
385 | int nthreads |
1119 | PROTOTYPE: $ |
|
|
1120 | |
|
|
1121 | void |
|
|
1122 | max_parallel (int nthreads) |
|
|
1123 | PROTOTYPE: $ |
|
|
1124 | |
|
|
1125 | int |
|
|
1126 | max_outstanding (int maxreqs) |
386 | PROTOTYPE: $ |
1127 | PROTOTYPE: $ |
387 | CODE: |
1128 | CODE: |
388 | while (nthreads > started) |
|
|
389 | start_thread (); |
|
|
390 | |
|
|
391 | void |
|
|
392 | max_parallel(nthreads) |
|
|
393 | int nthreads |
|
|
394 | PROTOTYPE: $ |
|
|
395 | CODE: |
|
|
396 | { |
|
|
397 | int cur = started; |
|
|
398 | while (cur > nthreads) |
|
|
399 | { |
|
|
400 | end_thread (); |
|
|
401 | cur--; |
|
|
402 | } |
|
|
403 | |
|
|
404 | while (started > nthreads) |
|
|
405 | { |
|
|
406 | poll_wait (); |
|
|
407 | poll_cb (); |
|
|
408 | } |
|
|
409 | } |
|
|
410 | |
|
|
411 | int |
|
|
412 | max_outstanding(nreqs) |
|
|
413 | int nreqs |
|
|
414 | PROTOTYPE: $ |
|
|
415 | CODE: |
|
|
416 | RETVAL = max_outstanding; |
1129 | RETVAL = max_outstanding; |
417 | max_outstanding = nreqs; |
1130 | max_outstanding = maxreqs; |
|
|
1131 | OUTPUT: |
|
|
1132 | RETVAL |
418 | |
1133 | |
419 | void |
1134 | void |
420 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1135 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
421 | SV * pathname |
1136 | SV * pathname |
422 | int flags |
1137 | int flags |
423 | int mode |
1138 | int mode |
424 | SV * callback |
1139 | SV * callback |
425 | PROTOTYPE: $$$;$ |
1140 | PROTOTYPE: $$$;$ |
426 | CODE: |
1141 | PPCODE: |
427 | { |
1142 | { |
428 | aio_req req; |
1143 | dREQ; |
429 | |
|
|
430 | Newz (0, req, 1, aio_cb); |
|
|
431 | |
|
|
432 | if (!req) |
|
|
433 | croak ("out of memory during aio_req allocation"); |
|
|
434 | |
1144 | |
435 | req->type = REQ_OPEN; |
1145 | req->type = REQ_OPEN; |
436 | req->data = newSVsv (pathname); |
1146 | req->data = newSVsv (pathname); |
437 | req->dataptr = SvPV_nolen (req->data); |
1147 | req->dataptr = SvPVbyte_nolen (req->data); |
438 | req->fd = flags; |
1148 | req->fd = flags; |
439 | req->mode = mode; |
1149 | req->mode = mode; |
440 | req->callback = SvREFCNT_inc (callback); |
|
|
441 | |
1150 | |
442 | send_req (req); |
1151 | REQ_SEND; |
443 | } |
1152 | } |
444 | |
1153 | |
445 | void |
1154 | void |
446 | aio_close(fh,callback=&PL_sv_undef) |
1155 | aio_close (fh,callback=&PL_sv_undef) |
447 | InputStream fh |
1156 | SV * fh |
448 | SV * callback |
1157 | SV * callback |
449 | PROTOTYPE: $;$ |
1158 | PROTOTYPE: $;$ |
450 | ALIAS: |
1159 | ALIAS: |
451 | aio_close = REQ_CLOSE |
1160 | aio_close = REQ_CLOSE |
452 | aio_fsync = REQ_FSYNC |
1161 | aio_fsync = REQ_FSYNC |
453 | aio_fdatasync = REQ_FDATASYNC |
1162 | aio_fdatasync = REQ_FDATASYNC |
454 | CODE: |
1163 | PPCODE: |
|
|
1164 | { |
|
|
1165 | dREQ; |
|
|
1166 | |
|
|
1167 | req->type = ix; |
|
|
1168 | req->fh = newSVsv (fh); |
|
|
1169 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
|
|
1170 | |
|
|
1171 | REQ_SEND (req); |
|
|
1172 | } |
|
|
1173 | |
|
|
1174 | void |
|
|
1175 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
1176 | SV * fh |
|
|
1177 | UV offset |
|
|
1178 | UV length |
|
|
1179 | SV * data |
|
|
1180 | UV dataoffset |
|
|
1181 | SV * callback |
|
|
1182 | ALIAS: |
|
|
1183 | aio_read = REQ_READ |
|
|
1184 | aio_write = REQ_WRITE |
|
|
1185 | PROTOTYPE: $$$$$;$ |
|
|
1186 | PPCODE: |
455 | { |
1187 | { |
456 | aio_req req; |
1188 | aio_req req; |
|
|
1189 | STRLEN svlen; |
|
|
1190 | char *svptr = SvPVbyte (data, svlen); |
457 | |
1191 | |
458 | Newz (0, req, 1, aio_cb); |
1192 | SvUPGRADE (data, SVt_PV); |
|
|
1193 | SvPOK_on (data); |
459 | |
1194 | |
460 | if (!req) |
1195 | if (dataoffset < 0) |
461 | croak ("out of memory during aio_req allocation"); |
1196 | dataoffset += svlen; |
462 | |
1197 | |
463 | req->type = ix; |
1198 | if (dataoffset < 0 || dataoffset > svlen) |
464 | req->fd = PerlIO_fileno (fh); |
1199 | croak ("data offset outside of string"); |
465 | req->callback = SvREFCNT_inc (callback); |
|
|
466 | |
1200 | |
467 | send_req (req); |
1201 | if (ix == REQ_WRITE) |
468 | } |
1202 | { |
469 | |
1203 | /* write: check length and adjust. */ |
470 | void |
1204 | if (length < 0 || length + dataoffset > svlen) |
471 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1205 | length = svlen - dataoffset; |
472 | InputStream fh |
1206 | } |
473 | UV offset |
1207 | else |
474 | IV length |
1208 | { |
475 | SV * data |
1209 | /* read: grow scalar as necessary */ |
476 | IV dataoffset |
1210 | svptr = SvGROW (data, length + dataoffset); |
477 | SV * callback |
1211 | } |
478 | PROTOTYPE: $$$$$;$ |
|
|
479 | CODE: |
|
|
480 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
481 | |
|
|
482 | void |
|
|
483 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
484 | OutputStream fh |
|
|
485 | UV offset |
|
|
486 | IV length |
|
|
487 | SV * data |
|
|
488 | IV dataoffset |
|
|
489 | SV * callback |
|
|
490 | PROTOTYPE: $$$$$;$ |
|
|
491 | CODE: |
|
|
492 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
493 | |
|
|
494 | void |
|
|
495 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
496 | InputStream fh |
|
|
497 | UV offset |
|
|
498 | IV length |
|
|
499 | SV * callback |
|
|
500 | PROTOTYPE: $$$;$ |
|
|
501 | CODE: |
|
|
502 | { |
|
|
503 | aio_req req; |
|
|
504 | |
1212 | |
505 | if (length < 0) |
1213 | if (length < 0) |
506 | croak ("length must not be negative"); |
1214 | croak ("length must not be negative"); |
507 | |
1215 | |
508 | Newz (0, req, 1, aio_cb); |
1216 | { |
|
|
1217 | dREQ; |
509 | |
1218 | |
510 | if (!req) |
1219 | req->type = ix; |
511 | croak ("out of memory during aio_req allocation"); |
1220 | req->fh = newSVsv (fh); |
|
|
1221 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
1222 | : IoOFP (sv_2io (fh))); |
|
|
1223 | req->offset = offset; |
|
|
1224 | req->length = length; |
|
|
1225 | req->data = SvREFCNT_inc (data); |
|
|
1226 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1227 | |
|
|
1228 | if (!SvREADONLY (data)) |
|
|
1229 | { |
|
|
1230 | SvREADONLY_on (data); |
|
|
1231 | req->data2ptr = (void *)data; |
|
|
1232 | } |
|
|
1233 | |
|
|
1234 | REQ_SEND; |
|
|
1235 | } |
|
|
1236 | } |
|
|
1237 | |
|
|
1238 | void |
|
|
1239 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1240 | SV * out_fh |
|
|
1241 | SV * in_fh |
|
|
1242 | UV in_offset |
|
|
1243 | UV length |
|
|
1244 | SV * callback |
|
|
1245 | PROTOTYPE: $$$$;$ |
|
|
1246 | PPCODE: |
|
|
1247 | { |
|
|
1248 | dREQ; |
|
|
1249 | |
|
|
1250 | req->type = REQ_SENDFILE; |
|
|
1251 | req->fh = newSVsv (out_fh); |
|
|
1252 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1253 | req->fh2 = newSVsv (in_fh); |
|
|
1254 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1255 | req->offset = in_offset; |
|
|
1256 | req->length = length; |
|
|
1257 | |
|
|
1258 | REQ_SEND; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | void |
|
|
1262 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
|
|
1263 | SV * fh |
|
|
1264 | UV offset |
|
|
1265 | IV length |
|
|
1266 | SV * callback |
|
|
1267 | PROTOTYPE: $$$;$ |
|
|
1268 | PPCODE: |
|
|
1269 | { |
|
|
1270 | dREQ; |
512 | |
1271 | |
513 | req->type = REQ_READAHEAD; |
1272 | req->type = REQ_READAHEAD; |
|
|
1273 | req->fh = newSVsv (fh); |
514 | req->fd = PerlIO_fileno (fh); |
1274 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
515 | req->offset = offset; |
1275 | req->offset = offset; |
516 | req->length = length; |
1276 | req->length = length; |
517 | req->callback = SvREFCNT_inc (callback); |
|
|
518 | |
1277 | |
519 | send_req (req); |
1278 | REQ_SEND; |
520 | } |
1279 | } |
521 | |
1280 | |
522 | void |
1281 | void |
523 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1282 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
524 | SV * fh_or_path |
1283 | SV * fh_or_path |
525 | SV * callback |
1284 | SV * callback |
526 | ALIAS: |
1285 | ALIAS: |
527 | aio_stat = REQ_STAT |
1286 | aio_stat = REQ_STAT |
528 | aio_lstat = REQ_LSTAT |
1287 | aio_lstat = REQ_LSTAT |
529 | CODE: |
1288 | PPCODE: |
530 | { |
1289 | { |
531 | aio_req req; |
1290 | dREQ; |
532 | |
|
|
533 | Newz (0, req, 1, aio_cb); |
|
|
534 | |
|
|
535 | if (!req) |
|
|
536 | croak ("out of memory during aio_req allocation"); |
|
|
537 | |
1291 | |
538 | New (0, req->statdata, 1, Stat_t); |
1292 | New (0, req->statdata, 1, Stat_t); |
539 | |
|
|
540 | if (!req->statdata) |
1293 | if (!req->statdata) |
|
|
1294 | { |
|
|
1295 | req_free (req); |
541 | croak ("out of memory during aio_req->statdata allocation"); |
1296 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1297 | } |
542 | |
1298 | |
543 | if (SvPOK (fh_or_path)) |
1299 | if (SvPOK (fh_or_path)) |
544 | { |
1300 | { |
545 | req->type = ix; |
1301 | req->type = ix; |
546 | req->data = newSVsv (fh_or_path); |
1302 | req->data = newSVsv (fh_or_path); |
547 | req->dataptr = SvPV_nolen (req->data); |
1303 | req->dataptr = SvPVbyte_nolen (req->data); |
548 | } |
1304 | } |
549 | else |
1305 | else |
550 | { |
1306 | { |
551 | req->type = REQ_FSTAT; |
1307 | req->type = REQ_FSTAT; |
|
|
1308 | req->fh = newSVsv (fh_or_path); |
552 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1309 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
553 | } |
1310 | } |
554 | |
1311 | |
555 | req->callback = SvREFCNT_inc (callback); |
1312 | REQ_SEND; |
556 | |
|
|
557 | send_req (req); |
|
|
558 | } |
1313 | } |
559 | |
1314 | |
560 | void |
1315 | void |
561 | aio_unlink(pathname,callback=&PL_sv_undef) |
1316 | aio_unlink (pathname,callback=&PL_sv_undef) |
562 | SV * pathname |
1317 | SV * pathname |
563 | SV * callback |
1318 | SV * callback |
|
|
1319 | ALIAS: |
|
|
1320 | aio_unlink = REQ_UNLINK |
|
|
1321 | aio_rmdir = REQ_RMDIR |
|
|
1322 | aio_readdir = REQ_READDIR |
564 | CODE: |
1323 | PPCODE: |
565 | { |
1324 | { |
566 | aio_req req; |
1325 | dREQ; |
567 | |
1326 | |
568 | Newz (0, req, 1, aio_cb); |
1327 | req->type = ix; |
|
|
1328 | req->data = newSVsv (pathname); |
|
|
1329 | req->dataptr = SvPVbyte_nolen (req->data); |
569 | |
1330 | |
570 | if (!req) |
1331 | REQ_SEND; |
571 | croak ("out of memory during aio_req allocation"); |
1332 | } |
|
|
1333 | |
|
|
1334 | void |
|
|
1335 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1336 | SV * oldpath |
|
|
1337 | SV * newpath |
|
|
1338 | SV * callback |
|
|
1339 | ALIAS: |
|
|
1340 | aio_link = REQ_LINK |
|
|
1341 | aio_symlink = REQ_SYMLINK |
|
|
1342 | aio_rename = REQ_RENAME |
|
|
1343 | PPCODE: |
|
|
1344 | { |
|
|
1345 | dREQ; |
572 | |
1346 | |
573 | req->type = REQ_UNLINK; |
1347 | req->type = ix; |
|
|
1348 | req->fh = newSVsv (oldpath); |
|
|
1349 | req->data2ptr = SvPVbyte_nolen (req->fh); |
574 | req->data = newSVsv (pathname); |
1350 | req->data = newSVsv (newpath); |
575 | req->dataptr = SvPV_nolen (req->data); |
1351 | req->dataptr = SvPVbyte_nolen (req->data); |
576 | req->callback = SvREFCNT_inc (callback); |
|
|
577 | |
1352 | |
578 | send_req (req); |
1353 | REQ_SEND; |
579 | } |
1354 | } |
580 | |
1355 | |
581 | void |
1356 | void |
|
|
1357 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1358 | double delay |
|
|
1359 | SV * callback |
|
|
1360 | PPCODE: |
|
|
1361 | { |
|
|
1362 | dREQ; |
|
|
1363 | |
|
|
1364 | req->type = REQ_BUSY; |
|
|
1365 | req->fd = delay < 0. ? 0 : delay; |
|
|
1366 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1367 | |
|
|
1368 | REQ_SEND; |
|
|
1369 | } |
|
|
1370 | |
|
|
1371 | void |
|
|
1372 | aio_group (callback=&PL_sv_undef) |
|
|
1373 | SV * callback |
|
|
1374 | PROTOTYPE: ;$ |
|
|
1375 | PPCODE: |
|
|
1376 | { |
|
|
1377 | dREQ; |
|
|
1378 | |
|
|
1379 | req->type = REQ_GROUP; |
|
|
1380 | req_send (req); |
|
|
1381 | |
|
|
1382 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1383 | } |
|
|
1384 | |
|
|
1385 | void |
|
|
1386 | aio_nop (callback=&PL_sv_undef) |
|
|
1387 | SV * callback |
|
|
1388 | PPCODE: |
|
|
1389 | { |
|
|
1390 | dREQ; |
|
|
1391 | |
|
|
1392 | req->type = REQ_NOP; |
|
|
1393 | |
|
|
1394 | REQ_SEND; |
|
|
1395 | } |
|
|
1396 | |
|
|
1397 | void |
|
|
1398 | aioreq_pri (int pri = DEFAULT_PRI) |
|
|
1399 | CODE: |
|
|
1400 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1401 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1402 | next_pri = pri + PRI_BIAS; |
|
|
1403 | |
|
|
1404 | void |
|
|
1405 | aioreq_nice (int nice = 0) |
|
|
1406 | CODE: |
|
|
1407 | nice = next_pri - nice; |
|
|
1408 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1409 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1410 | next_pri = nice + PRI_BIAS; |
|
|
1411 | |
|
|
1412 | void |
582 | flush() |
1413 | flush () |
583 | PROTOTYPE: |
1414 | PROTOTYPE: |
584 | CODE: |
1415 | CODE: |
585 | while (nreqs) |
1416 | while (nreqs) |
586 | { |
1417 | { |
587 | poll_wait (); |
1418 | poll_wait (); |
588 | poll_cb (); |
1419 | poll_cb (0); |
589 | } |
1420 | } |
590 | |
1421 | |
591 | void |
1422 | void |
592 | poll() |
1423 | poll() |
593 | PROTOTYPE: |
1424 | PROTOTYPE: |
594 | CODE: |
1425 | CODE: |
595 | if (nreqs) |
1426 | if (nreqs) |
596 | { |
1427 | { |
597 | poll_wait (); |
1428 | poll_wait (); |
598 | poll_cb (); |
1429 | poll_cb (0); |
599 | } |
1430 | } |
600 | |
1431 | |
601 | int |
1432 | int |
602 | poll_fileno() |
1433 | poll_fileno() |
603 | PROTOTYPE: |
1434 | PROTOTYPE: |
… | |
… | |
608 | |
1439 | |
609 | int |
1440 | int |
610 | poll_cb(...) |
1441 | poll_cb(...) |
611 | PROTOTYPE: |
1442 | PROTOTYPE: |
612 | CODE: |
1443 | CODE: |
613 | RETVAL = poll_cb (); |
1444 | RETVAL = poll_cb (0); |
|
|
1445 | OUTPUT: |
|
|
1446 | RETVAL |
|
|
1447 | |
|
|
1448 | int |
|
|
1449 | poll_some(int max = 0) |
|
|
1450 | PROTOTYPE: $ |
|
|
1451 | CODE: |
|
|
1452 | RETVAL = poll_cb (max); |
614 | OUTPUT: |
1453 | OUTPUT: |
615 | RETVAL |
1454 | RETVAL |
616 | |
1455 | |
617 | void |
1456 | void |
618 | poll_wait() |
1457 | poll_wait() |
… | |
… | |
627 | CODE: |
1466 | CODE: |
628 | RETVAL = nreqs; |
1467 | RETVAL = nreqs; |
629 | OUTPUT: |
1468 | OUTPUT: |
630 | RETVAL |
1469 | RETVAL |
631 | |
1470 | |
|
|
1471 | PROTOTYPES: DISABLE |
|
|
1472 | |
|
|
1473 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1474 | |
|
|
1475 | void |
|
|
1476 | cancel (aio_req_ornot req) |
|
|
1477 | CODE: |
|
|
1478 | req_cancel (req); |
|
|
1479 | |
|
|
1480 | void |
|
|
1481 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1482 | CODE: |
|
|
1483 | SvREFCNT_dec (req->callback); |
|
|
1484 | req->callback = newSVsv (callback); |
|
|
1485 | |
|
|
1486 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1487 | |
|
|
1488 | void |
|
|
1489 | add (aio_req grp, ...) |
|
|
1490 | PPCODE: |
|
|
1491 | { |
|
|
1492 | int i; |
|
|
1493 | aio_req req; |
|
|
1494 | |
|
|
1495 | if (grp->fd == 2) |
|
|
1496 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1497 | |
|
|
1498 | for (i = 1; i < items; ++i ) |
|
|
1499 | { |
|
|
1500 | if (GIMME_V != G_VOID) |
|
|
1501 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1502 | |
|
|
1503 | req = SvAIO_REQ (ST (i)); |
|
|
1504 | |
|
|
1505 | if (req) |
|
|
1506 | { |
|
|
1507 | ++grp->length; |
|
|
1508 | req->grp = grp; |
|
|
1509 | |
|
|
1510 | req->grp_prev = 0; |
|
|
1511 | req->grp_next = grp->grp_first; |
|
|
1512 | |
|
|
1513 | if (grp->grp_first) |
|
|
1514 | grp->grp_first->grp_prev = req; |
|
|
1515 | |
|
|
1516 | grp->grp_first = req; |
|
|
1517 | } |
|
|
1518 | } |
|
|
1519 | } |
|
|
1520 | |
|
|
1521 | void |
|
|
1522 | cancel_subs (aio_req_ornot req) |
|
|
1523 | CODE: |
|
|
1524 | req_cancel_subs (req); |
|
|
1525 | |
|
|
1526 | void |
|
|
1527 | result (aio_req grp, ...) |
|
|
1528 | CODE: |
|
|
1529 | { |
|
|
1530 | int i; |
|
|
1531 | AV *av = newAV (); |
|
|
1532 | |
|
|
1533 | for (i = 1; i < items; ++i ) |
|
|
1534 | av_push (av, newSVsv (ST (i))); |
|
|
1535 | |
|
|
1536 | SvREFCNT_dec (grp->data); |
|
|
1537 | grp->data = (SV *)av; |
|
|
1538 | } |
|
|
1539 | |
|
|
1540 | void |
|
|
1541 | limit (aio_req grp, int limit) |
|
|
1542 | CODE: |
|
|
1543 | grp->fd2 = limit; |
|
|
1544 | aio_grp_feed (grp); |
|
|
1545 | |
|
|
1546 | void |
|
|
1547 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1548 | CODE: |
|
|
1549 | { |
|
|
1550 | SvREFCNT_dec (grp->fh2); |
|
|
1551 | grp->fh2 = newSVsv (callback); |
|
|
1552 | |
|
|
1553 | if (grp->fd2 <= 0) |
|
|
1554 | grp->fd2 = 2; |
|
|
1555 | |
|
|
1556 | aio_grp_feed (grp); |
|
|
1557 | } |
|
|
1558 | |