1 | #ifndef _REENTRANT |
1 | /* solaris */ |
2 | # define _REENTRANT 1 |
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 |
3 | #endif |
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 | |
4 | #include <errno.h> |
11 | #include <errno.h> |
5 | |
12 | |
6 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
7 | #include "perl.h" |
14 | #include "perl.h" |
8 | #include "XSUB.h" |
15 | #include "XSUB.h" |
9 | |
16 | |
10 | #include "autoconf/config.h" |
17 | #include "autoconf/config.h" |
11 | |
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> |
12 | #include <sys/types.h> |
25 | #include <sys/types.h> |
13 | #include <sys/stat.h> |
26 | #include <sys/stat.h> |
14 | |
27 | #include <limits.h> |
15 | #include <unistd.h> |
28 | #include <unistd.h> |
16 | #include <fcntl.h> |
29 | #include <fcntl.h> |
17 | #include <signal.h> |
30 | #include <signal.h> |
18 | #include <sched.h> |
31 | #include <sched.h> |
19 | |
32 | |
20 | #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 |
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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 |
21 | |
47 | |
22 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
48 | /* number of seconds after which idle threads exit */ |
23 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
49 | #define IDLE_TIMEOUT 10 |
24 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
50 | |
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51 | /* used for struct dirent, AIX doesn't provide it */ |
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52 | #ifndef NAME_MAX |
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53 | # define NAME_MAX 4096 |
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54 | #endif |
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55 | |
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56 | #ifndef PTHREAD_STACK_MIN |
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57 | /* care for broken platforms, e.g. windows */ |
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58 | # define PTHREAD_STACK_MIN 16384 |
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59 | #endif |
25 | |
60 | |
26 | #if __ia64 |
61 | #if __ia64 |
27 | # define STACKSIZE 65536 |
62 | # define STACKSIZE 65536 |
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63 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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64 | # define STACKSIZE PTHREAD_STACK_MIN |
28 | #else |
65 | #else |
29 | # define STACKSIZE 4096 |
66 | # define STACKSIZE 16384 |
30 | #endif |
67 | #endif |
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68 | |
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69 | /* wether word reads are potentially non-atomic. |
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70 | * this is conservatice, likely most arches this runs |
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71 | * on have atomic word read/writes. |
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72 | */ |
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73 | #ifndef WORDACCESS_UNSAFE |
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74 | # if __i386 || __x86_64 |
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75 | # define WORDACCESS_UNSAFE 0 |
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76 | # else |
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77 | # define WORDACCESS_UNSAFE 1 |
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78 | # endif |
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79 | #endif |
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80 | |
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81 | /* buffer size for various temporary buffers */ |
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82 | #define AIO_BUFSIZE 65536 |
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83 | |
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84 | #define dBUF \ |
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85 | char *aio_buf; \ |
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86 | LOCK (wrklock); \ |
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87 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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88 | UNLOCK (wrklock); \ |
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89 | if (!aio_buf) \ |
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90 | return -1; |
31 | |
91 | |
32 | enum { |
92 | enum { |
33 | REQ_QUIT, |
93 | REQ_QUIT, |
34 | REQ_OPEN, REQ_CLOSE, |
94 | REQ_OPEN, REQ_CLOSE, |
35 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
95 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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96 | REQ_SENDFILE, |
36 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
97 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
37 | REQ_FSYNC, REQ_FDATASYNC, |
98 | REQ_FSYNC, REQ_FDATASYNC, |
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99 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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100 | REQ_MKNOD, REQ_READDIR, |
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101 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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102 | REQ_GROUP, REQ_NOP, |
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103 | REQ_BUSY, |
38 | }; |
104 | }; |
39 | |
105 | |
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106 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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107 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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108 | |
40 | typedef struct aio_cb { |
109 | typedef struct aio_cb |
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110 | { |
41 | struct aio_cb *volatile next; |
111 | struct aio_cb *volatile next; |
42 | |
112 | |
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113 | SV *callback, *fh; |
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114 | SV *sv1, *sv2; |
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115 | void *ptr1, *ptr2; |
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116 | Stat_t *statdata; |
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117 | off_t offs; |
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118 | size_t size; |
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119 | ssize_t result; |
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120 | |
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121 | STRLEN stroffset; |
43 | int type; |
122 | int type; |
44 | |
123 | int int1, int2; |
45 | int fd; |
124 | int errorno; |
46 | off_t offset; |
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47 | size_t length; |
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48 | ssize_t result; |
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49 | mode_t mode; /* open */ |
125 | mode_t mode; /* open */ |
50 | int errorno; |
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51 | SV *data, *callback, *fh; |
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52 | void *dataptr; |
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53 | STRLEN dataoffset; |
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54 | |
126 | |
55 | Stat_t *statdata; |
127 | unsigned char flags; |
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128 | unsigned char pri; |
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129 | |
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130 | SV *self; /* the perl counterpart of this request, if any */ |
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131 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
56 | } aio_cb; |
132 | } aio_cb; |
57 | |
133 | |
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134 | enum { |
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135 | FLAG_CANCELLED = 0x01, |
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136 | FLAG_DATA_RO_OFF = 0x80, /* data was set readonly */ |
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137 | }; |
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138 | |
58 | typedef aio_cb *aio_req; |
139 | typedef aio_cb *aio_req; |
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140 | typedef aio_cb *aio_req_ornot; |
59 | |
141 | |
60 | static int started; |
142 | enum { |
61 | static volatile int nreqs; |
143 | PRI_MIN = -4, |
62 | static int max_outstanding = 1<<30; |
144 | PRI_MAX = 4, |
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145 | |
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146 | DEFAULT_PRI = 0, |
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147 | PRI_BIAS = -PRI_MIN, |
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148 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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149 | }; |
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150 | |
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151 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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152 | |
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153 | static unsigned int max_poll_time = 0; |
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154 | static unsigned int max_poll_reqs = 0; |
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155 | |
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156 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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157 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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158 | { |
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159 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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160 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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161 | } |
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162 | |
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163 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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164 | |
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165 | static unsigned int started, idle, wanted; |
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166 | |
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167 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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168 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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169 | #else |
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170 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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171 | #endif |
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172 | |
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173 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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174 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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175 | |
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176 | /* worker threads management */ |
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177 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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178 | |
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179 | typedef struct worker { |
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180 | /* locked by wrklock */ |
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181 | struct worker *prev, *next; |
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182 | |
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183 | pthread_t tid; |
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184 | |
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185 | /* locked by reslock, reqlock or wrklock */ |
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186 | aio_req req; /* currently processed request */ |
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187 | void *dbuf; |
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188 | DIR *dirp; |
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189 | } worker; |
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190 | |
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191 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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192 | |
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193 | static void worker_clear (worker *wrk) |
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194 | { |
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195 | if (wrk->dirp) |
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196 | { |
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197 | closedir (wrk->dirp); |
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198 | wrk->dirp = 0; |
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199 | } |
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200 | |
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201 | if (wrk->dbuf) |
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202 | { |
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203 | free (wrk->dbuf); |
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204 | wrk->dbuf = 0; |
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205 | } |
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206 | } |
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207 | |
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208 | static void worker_free (worker *wrk) |
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209 | { |
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210 | wrk->next->prev = wrk->prev; |
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211 | wrk->prev->next = wrk->next; |
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212 | |
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213 | free (wrk); |
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214 | } |
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215 | |
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216 | static volatile unsigned int nreqs, nready, npending; |
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217 | static volatile unsigned int max_idle = 4; |
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218 | static volatile unsigned int max_outstanding = 0xffffffff; |
63 | static int respipe [2]; |
219 | static int respipe [2]; |
64 | |
220 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
221 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
222 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
223 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
68 | |
224 | |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
225 | #if WORDACCESS_UNSAFE |
70 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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71 | |
226 | |
72 | static void |
227 | static unsigned int get_nready () |
73 | poll_wait () |
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74 | { |
228 | { |
75 | if (nreqs && !ress) |
229 | unsigned int retval; |
76 | { |
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77 | fd_set rfd; |
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78 | FD_ZERO(&rfd); |
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79 | FD_SET(respipe [0], &rfd); |
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80 | |
230 | |
81 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
231 | LOCK (reqlock); |
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232 | retval = nready; |
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233 | UNLOCK (reqlock); |
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234 | |
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235 | return retval; |
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236 | } |
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237 | |
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238 | static unsigned int get_npending () |
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239 | { |
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240 | unsigned int retval; |
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241 | |
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242 | LOCK (reslock); |
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243 | retval = npending; |
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244 | UNLOCK (reslock); |
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245 | |
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246 | return retval; |
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247 | } |
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248 | |
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249 | static unsigned int get_nthreads () |
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250 | { |
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251 | unsigned int retval; |
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252 | |
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253 | LOCK (wrklock); |
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254 | retval = started; |
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255 | UNLOCK (wrklock); |
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256 | |
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257 | return retval; |
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258 | } |
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259 | |
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260 | #else |
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261 | |
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262 | # define get_nready() nready |
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263 | # define get_npending() npending |
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264 | # define get_nthreads() started |
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265 | |
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266 | #endif |
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267 | |
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268 | /* |
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269 | * a somewhat faster data structure might be nice, but |
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270 | * with 8 priorities this actually needs <20 insns |
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271 | * per shift, the most expensive operation. |
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272 | */ |
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273 | typedef struct { |
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274 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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275 | int size; |
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276 | } reqq; |
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277 | |
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278 | static reqq req_queue; |
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279 | static reqq res_queue; |
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280 | |
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281 | int reqq_push (reqq *q, aio_req req) |
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282 | { |
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283 | int pri = req->pri; |
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284 | req->next = 0; |
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285 | |
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286 | if (q->qe[pri]) |
82 | } |
287 | { |
83 | } |
288 | q->qe[pri]->next = req; |
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289 | q->qe[pri] = req; |
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290 | } |
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291 | else |
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292 | q->qe[pri] = q->qs[pri] = req; |
84 | |
293 | |
85 | static int |
294 | return q->size++; |
86 | poll_cb () |
295 | } |
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296 | |
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297 | aio_req reqq_shift (reqq *q) |
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298 | { |
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299 | int pri; |
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300 | |
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301 | if (!q->size) |
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302 | return 0; |
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303 | |
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304 | --q->size; |
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305 | |
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306 | for (pri = NUM_PRI; pri--; ) |
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307 | { |
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308 | aio_req req = q->qs[pri]; |
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309 | |
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310 | if (req) |
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311 | { |
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312 | if (!(q->qs[pri] = req->next)) |
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313 | q->qe[pri] = 0; |
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314 | |
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315 | return req; |
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316 | } |
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317 | } |
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318 | |
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319 | abort (); |
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320 | } |
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321 | |
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322 | static int poll_cb (); |
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323 | static void req_invoke (aio_req req); |
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324 | static void req_free (aio_req req); |
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325 | static void req_cancel (aio_req req); |
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326 | |
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327 | /* must be called at most once */ |
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328 | static SV *req_sv (aio_req req, const char *klass) |
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329 | { |
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330 | if (!req->self) |
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331 | { |
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332 | req->self = (SV *)newHV (); |
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333 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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334 | } |
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335 | |
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336 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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337 | } |
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338 | |
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339 | static aio_req SvAIO_REQ (SV *sv) |
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340 | { |
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341 | MAGIC *mg; |
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342 | |
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343 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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344 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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345 | |
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346 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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347 | |
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348 | return mg ? (aio_req)mg->mg_ptr : 0; |
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349 | } |
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350 | |
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351 | static void aio_grp_feed (aio_req grp) |
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352 | { |
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353 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
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354 | { |
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355 | int old_len = grp->size; |
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356 | |
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357 | if (grp->sv2 && SvOK (grp->sv2)) |
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358 | { |
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359 | dSP; |
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360 | |
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361 | ENTER; |
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362 | SAVETMPS; |
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363 | PUSHMARK (SP); |
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364 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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365 | PUTBACK; |
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366 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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367 | SPAGAIN; |
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368 | FREETMPS; |
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369 | LEAVE; |
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370 | } |
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371 | |
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372 | /* stop if no progress has been made */ |
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373 | if (old_len == grp->size) |
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374 | { |
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375 | SvREFCNT_dec (grp->sv2); |
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376 | grp->sv2 = 0; |
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377 | break; |
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378 | } |
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379 | } |
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380 | } |
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381 | |
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382 | static void aio_grp_dec (aio_req grp) |
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383 | { |
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384 | --grp->size; |
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385 | |
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386 | /* call feeder, if applicable */ |
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387 | aio_grp_feed (grp); |
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388 | |
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389 | /* finish, if done */ |
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390 | if (!grp->size && grp->int1) |
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391 | { |
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392 | req_invoke (grp); |
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393 | req_free (grp); |
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394 | } |
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395 | } |
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396 | |
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397 | static void req_invoke (aio_req req) |
87 | { |
398 | { |
88 | dSP; |
399 | dSP; |
89 | int count = 0; |
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90 | aio_req req, prv; |
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91 | |
400 | |
92 | pthread_mutex_lock (&reslock); |
401 | if (req->flags & FLAG_DATA_RO_OFF) |
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402 | SvREADONLY_off (req->sv1); |
93 | |
403 | |
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404 | if (req->statdata) |
94 | { |
405 | { |
95 | /* read any signals sent by the worker threads */ |
406 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
96 | char buf [32]; |
407 | PL_laststatval = req->result; |
97 | while (read (respipe [0], buf, 32) > 0) |
408 | PL_statcache = *(req->statdata); |
98 | ; |
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99 | } |
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100 | |
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101 | req = ress; |
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102 | ress = rese = 0; |
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103 | |
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104 | pthread_mutex_unlock (&reslock); |
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105 | |
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106 | while (req) |
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107 | { |
409 | } |
108 | nreqs--; |
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109 | |
410 | |
110 | if (req->type == REQ_QUIT) |
411 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
111 | started--; |
412 | { |
112 | else |
413 | ENTER; |
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414 | SAVETMPS; |
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415 | PUSHMARK (SP); |
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416 | EXTEND (SP, 1); |
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417 | |
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418 | switch (req->type) |
113 | { |
419 | { |
114 | int errorno = errno; |
420 | case REQ_READDIR: |
115 | errno = req->errorno; |
|
|
116 | |
|
|
117 | if (req->type == REQ_READ) |
|
|
118 | SvCUR_set (req->data, req->dataoffset |
|
|
119 | + req->result > 0 ? req->result : 0); |
|
|
120 | |
|
|
121 | if (req->data) |
|
|
122 | SvREFCNT_dec (req->data); |
|
|
123 | |
|
|
124 | if (req->fh) |
|
|
125 | SvREFCNT_dec (req->fh); |
|
|
126 | |
|
|
127 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
128 | { |
421 | { |
129 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
422 | SV *rv = &PL_sv_undef; |
130 | PL_laststatval = req->result; |
|
|
131 | PL_statcache = *(req->statdata); |
|
|
132 | |
423 | |
133 | Safefree (req->statdata); |
424 | if (req->result >= 0) |
|
|
425 | { |
|
|
426 | int i; |
|
|
427 | char *buf = req->ptr2; |
|
|
428 | AV *av = newAV (); |
|
|
429 | |
|
|
430 | av_extend (av, req->result - 1); |
|
|
431 | |
|
|
432 | for (i = 0; i < req->result; ++i) |
|
|
433 | { |
|
|
434 | SV *sv = newSVpv (buf, 0); |
|
|
435 | |
|
|
436 | av_store (av, i, sv); |
|
|
437 | buf += SvCUR (sv) + 1; |
|
|
438 | } |
|
|
439 | |
|
|
440 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
441 | } |
|
|
442 | |
|
|
443 | PUSHs (rv); |
134 | } |
444 | } |
|
|
445 | break; |
135 | |
446 | |
136 | ENTER; |
447 | case REQ_OPEN: |
137 | PUSHMARK (SP); |
|
|
138 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
139 | |
|
|
140 | if (req->type == REQ_OPEN) |
|
|
141 | { |
448 | { |
142 | /* convert fd to fh */ |
449 | /* convert fd to fh */ |
143 | SV *fh; |
450 | SV *fh; |
144 | |
451 | |
|
|
452 | PUSHs (sv_2mortal (newSViv (req->result))); |
145 | PUTBACK; |
453 | PUTBACK; |
146 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
454 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
147 | SPAGAIN; |
455 | SPAGAIN; |
148 | |
456 | |
149 | fh = SvREFCNT_inc (POPs); |
457 | fh = SvREFCNT_inc (POPs); |
150 | |
458 | |
151 | PUSHMARK (SP); |
459 | PUSHMARK (SP); |
152 | XPUSHs (sv_2mortal (fh)); |
460 | XPUSHs (sv_2mortal (fh)); |
153 | } |
461 | } |
|
|
462 | break; |
154 | |
463 | |
155 | if (SvOK (req->callback)) |
464 | case REQ_GROUP: |
|
|
465 | req->int1 = 2; /* mark group as finished */ |
|
|
466 | |
|
|
467 | if (req->sv1) |
156 | { |
468 | { |
157 | PUTBACK; |
469 | int i; |
158 | call_sv (req->callback, G_VOID | G_EVAL); |
470 | AV *av = (AV *)req->sv1; |
159 | SPAGAIN; |
471 | |
|
|
472 | EXTEND (SP, AvFILL (av) + 1); |
|
|
473 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
474 | PUSHs (*av_fetch (av, i, 0)); |
160 | } |
475 | } |
|
|
476 | break; |
161 | |
477 | |
162 | LEAVE; |
478 | case REQ_NOP: |
|
|
479 | case REQ_BUSY: |
|
|
480 | break; |
|
|
481 | |
|
|
482 | case REQ_READLINK: |
|
|
483 | if (req->result > 0) |
163 | |
484 | { |
164 | if (req->callback) |
485 | SvCUR_set (req->sv1, req->result); |
165 | SvREFCNT_dec (req->callback); |
486 | *SvEND (req->sv1) = 0; |
|
|
487 | PUSHs (req->sv1); |
|
|
488 | } |
|
|
489 | break; |
166 | |
490 | |
167 | errno = errorno; |
491 | case REQ_READ: |
168 | count++; |
492 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
493 | *SvEND (req->sv1) = 0; |
|
|
494 | /* fall through */ |
|
|
495 | default: |
|
|
496 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
497 | break; |
169 | } |
498 | } |
170 | |
499 | |
171 | prv = req; |
500 | errno = req->errorno; |
172 | req = req->next; |
|
|
173 | Safefree (prv); |
|
|
174 | |
501 | |
175 | /* TODO: croak on errors? */ |
502 | PUTBACK; |
|
|
503 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
504 | SPAGAIN; |
|
|
505 | |
|
|
506 | FREETMPS; |
|
|
507 | LEAVE; |
|
|
508 | } |
|
|
509 | |
|
|
510 | if (req->grp) |
176 | } |
511 | { |
|
|
512 | aio_req grp = req->grp; |
177 | |
513 | |
178 | return count; |
514 | /* unlink request */ |
|
|
515 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
516 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
517 | |
|
|
518 | if (grp->grp_first == req) |
|
|
519 | grp->grp_first = req->grp_next; |
|
|
520 | |
|
|
521 | aio_grp_dec (grp); |
|
|
522 | } |
|
|
523 | |
|
|
524 | if (SvTRUE (ERRSV)) |
|
|
525 | { |
|
|
526 | req_free (req); |
|
|
527 | croak (0); |
|
|
528 | } |
|
|
529 | } |
|
|
530 | |
|
|
531 | static void req_free (aio_req req) |
|
|
532 | { |
|
|
533 | if (req->self) |
|
|
534 | { |
|
|
535 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
536 | SvREFCNT_dec (req->self); |
|
|
537 | } |
|
|
538 | |
|
|
539 | SvREFCNT_dec (req->fh); |
|
|
540 | SvREFCNT_dec (req->sv1); |
|
|
541 | SvREFCNT_dec (req->sv2); |
|
|
542 | SvREFCNT_dec (req->callback); |
|
|
543 | Safefree (req->statdata); |
|
|
544 | |
|
|
545 | if (req->type == REQ_READDIR) |
|
|
546 | free (req->ptr2); |
|
|
547 | |
|
|
548 | Safefree (req); |
|
|
549 | } |
|
|
550 | |
|
|
551 | static void req_cancel_subs (aio_req grp) |
|
|
552 | { |
|
|
553 | aio_req sub; |
|
|
554 | |
|
|
555 | if (grp->type != REQ_GROUP) |
|
|
556 | return; |
|
|
557 | |
|
|
558 | SvREFCNT_dec (grp->sv2); |
|
|
559 | grp->sv2 = 0; |
|
|
560 | |
|
|
561 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
562 | req_cancel (sub); |
|
|
563 | } |
|
|
564 | |
|
|
565 | static void req_cancel (aio_req req) |
|
|
566 | { |
|
|
567 | req->flags |= FLAG_CANCELLED; |
|
|
568 | |
|
|
569 | req_cancel_subs (req); |
179 | } |
570 | } |
180 | |
571 | |
181 | static void *aio_proc(void *arg); |
572 | static void *aio_proc(void *arg); |
182 | |
573 | |
183 | static void |
|
|
184 | start_thread (void) |
574 | static void start_thread (void) |
185 | { |
575 | { |
186 | sigset_t fullsigset, oldsigset; |
576 | sigset_t fullsigset, oldsigset; |
187 | pthread_t tid; |
|
|
188 | pthread_attr_t attr; |
577 | pthread_attr_t attr; |
|
|
578 | |
|
|
579 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
580 | |
|
|
581 | if (!wrk) |
|
|
582 | croak ("unable to allocate worker thread data"); |
189 | |
583 | |
190 | pthread_attr_init (&attr); |
584 | pthread_attr_init (&attr); |
191 | pthread_attr_setstacksize (&attr, STACKSIZE); |
585 | pthread_attr_setstacksize (&attr, STACKSIZE); |
192 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
586 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
587 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
588 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
589 | #endif |
193 | |
590 | |
194 | sigfillset (&fullsigset); |
591 | sigfillset (&fullsigset); |
|
|
592 | |
|
|
593 | LOCK (wrklock); |
195 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
594 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
196 | |
595 | |
197 | 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; |
198 | started++; |
602 | ++started; |
|
|
603 | } |
|
|
604 | else |
|
|
605 | free (wrk); |
199 | |
606 | |
200 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
607 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
608 | UNLOCK (wrklock); |
201 | } |
609 | } |
202 | |
610 | |
203 | static void |
611 | static void maybe_start_thread () |
204 | send_req (aio_req req) |
|
|
205 | { |
612 | { |
|
|
613 | if (get_nthreads () >= wanted) |
|
|
614 | return; |
|
|
615 | |
|
|
616 | /* todo: maybe use idle here, but might be less exact */ |
|
|
617 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
618 | return; |
|
|
619 | |
|
|
620 | start_thread (); |
|
|
621 | } |
|
|
622 | |
|
|
623 | static void req_send (aio_req req) |
|
|
624 | { |
206 | nreqs++; |
625 | ++nreqs; |
207 | |
626 | |
208 | pthread_mutex_lock (&reqlock); |
627 | LOCK (reqlock); |
209 | |
628 | ++nready; |
210 | req->next = 0; |
629 | reqq_push (&req_queue, req); |
211 | |
|
|
212 | if (reqe) |
|
|
213 | { |
|
|
214 | reqe->next = req; |
|
|
215 | reqe = req; |
|
|
216 | } |
|
|
217 | else |
|
|
218 | reqe = reqs = req; |
|
|
219 | |
|
|
220 | pthread_cond_signal (&reqwait); |
630 | pthread_cond_signal (&reqwait); |
221 | pthread_mutex_unlock (&reqlock); |
631 | UNLOCK (reqlock); |
222 | |
632 | |
|
|
633 | maybe_start_thread (); |
|
|
634 | } |
|
|
635 | |
|
|
636 | static void end_thread (void) |
|
|
637 | { |
|
|
638 | aio_req req; |
|
|
639 | |
|
|
640 | Newz (0, req, 1, aio_cb); |
|
|
641 | |
|
|
642 | req->type = REQ_QUIT; |
|
|
643 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
644 | |
|
|
645 | LOCK (reqlock); |
|
|
646 | reqq_push (&req_queue, req); |
|
|
647 | pthread_cond_signal (&reqwait); |
|
|
648 | UNLOCK (reqlock); |
|
|
649 | |
|
|
650 | LOCK (wrklock); |
|
|
651 | --started; |
|
|
652 | UNLOCK (wrklock); |
|
|
653 | } |
|
|
654 | |
|
|
655 | static void set_max_idle (int nthreads) |
|
|
656 | { |
|
|
657 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
658 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
659 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
|
|
660 | } |
|
|
661 | |
|
|
662 | static void min_parallel (int nthreads) |
|
|
663 | { |
|
|
664 | if (wanted < nthreads) |
|
|
665 | wanted = nthreads; |
|
|
666 | } |
|
|
667 | |
|
|
668 | static void max_parallel (int nthreads) |
|
|
669 | { |
|
|
670 | if (wanted > nthreads) |
|
|
671 | wanted = nthreads; |
|
|
672 | |
|
|
673 | while (started > wanted) |
|
|
674 | end_thread (); |
|
|
675 | } |
|
|
676 | |
|
|
677 | static void poll_wait () |
|
|
678 | { |
|
|
679 | fd_set rfd; |
|
|
680 | |
|
|
681 | while (nreqs) |
|
|
682 | { |
|
|
683 | int size; |
|
|
684 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
685 | size = res_queue.size; |
|
|
686 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
687 | |
|
|
688 | if (size) |
|
|
689 | return; |
|
|
690 | |
|
|
691 | maybe_start_thread (); |
|
|
692 | |
|
|
693 | FD_ZERO(&rfd); |
|
|
694 | FD_SET(respipe [0], &rfd); |
|
|
695 | |
|
|
696 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
697 | } |
|
|
698 | } |
|
|
699 | |
|
|
700 | static int poll_cb () |
|
|
701 | { |
|
|
702 | dSP; |
|
|
703 | int count = 0; |
|
|
704 | int maxreqs = max_poll_reqs; |
|
|
705 | int do_croak = 0; |
|
|
706 | struct timeval tv_start, tv_now; |
|
|
707 | aio_req req; |
|
|
708 | |
|
|
709 | if (max_poll_time) |
|
|
710 | gettimeofday (&tv_start, 0); |
|
|
711 | |
|
|
712 | for (;;) |
|
|
713 | { |
|
|
714 | for (;;) |
|
|
715 | { |
|
|
716 | maybe_start_thread (); |
|
|
717 | |
|
|
718 | LOCK (reslock); |
|
|
719 | req = reqq_shift (&res_queue); |
|
|
720 | |
|
|
721 | if (req) |
|
|
722 | { |
|
|
723 | --npending; |
|
|
724 | |
|
|
725 | if (!res_queue.size) |
|
|
726 | { |
|
|
727 | /* read any signals sent by the worker threads */ |
|
|
728 | char buf [32]; |
|
|
729 | while (read (respipe [0], buf, 32) == 32) |
|
|
730 | ; |
|
|
731 | } |
|
|
732 | } |
|
|
733 | |
|
|
734 | UNLOCK (reslock); |
|
|
735 | |
|
|
736 | if (!req) |
|
|
737 | break; |
|
|
738 | |
|
|
739 | --nreqs; |
|
|
740 | |
|
|
741 | if (req->type == REQ_GROUP && req->size) |
|
|
742 | { |
|
|
743 | req->int1 = 1; /* mark request as delayed */ |
|
|
744 | continue; |
|
|
745 | } |
|
|
746 | else |
|
|
747 | { |
|
|
748 | req_invoke (req); |
|
|
749 | |
|
|
750 | count++; |
|
|
751 | } |
|
|
752 | |
|
|
753 | req_free (req); |
|
|
754 | |
|
|
755 | if (maxreqs && !--maxreqs) |
|
|
756 | break; |
|
|
757 | |
|
|
758 | if (max_poll_time) |
|
|
759 | { |
|
|
760 | gettimeofday (&tv_now, 0); |
|
|
761 | |
|
|
762 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
763 | break; |
|
|
764 | } |
|
|
765 | } |
|
|
766 | |
223 | while (nreqs > max_outstanding) |
767 | if (nreqs <= max_outstanding) |
224 | { |
768 | break; |
|
|
769 | |
225 | poll_wait (); |
770 | poll_wait (); |
226 | poll_cb (); |
|
|
227 | } |
|
|
228 | } |
|
|
229 | |
771 | |
230 | static void |
772 | ++maxreqs; |
231 | end_thread (void) |
773 | } |
232 | { |
|
|
233 | aio_req req; |
|
|
234 | New (0, req, 1, aio_cb); |
|
|
235 | req->type = REQ_QUIT; |
|
|
236 | |
774 | |
237 | send_req (req); |
775 | return count; |
238 | } |
776 | } |
239 | |
777 | |
|
|
778 | static void create_pipe () |
|
|
779 | { |
|
|
780 | if (pipe (respipe)) |
|
|
781 | croak ("unable to initialize result pipe"); |
|
|
782 | |
|
|
783 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
784 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
785 | |
|
|
786 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
787 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
788 | } |
|
|
789 | |
|
|
790 | /*****************************************************************************/ |
240 | /* work around various missing functions */ |
791 | /* work around various missing functions */ |
241 | |
792 | |
242 | #if !HAVE_PREADWRITE |
793 | #if !HAVE_PREADWRITE |
243 | # define pread aio_pread |
794 | # define pread aio_pread |
244 | # define pwrite aio_pwrite |
795 | # define pwrite aio_pwrite |
… | |
… | |
246 | /* |
797 | /* |
247 | * make our pread/pwrite safe against themselves, but not against |
798 | * make our pread/pwrite safe against themselves, but not against |
248 | * normal read/write by using a mutex. slows down execution a lot, |
799 | * normal read/write by using a mutex. slows down execution a lot, |
249 | * but that's your problem, not mine. |
800 | * but that's your problem, not mine. |
250 | */ |
801 | */ |
251 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
802 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
252 | |
803 | |
253 | static ssize_t |
804 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
254 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
255 | { |
805 | { |
256 | ssize_t res; |
806 | ssize_t res; |
257 | off_t ooffset; |
807 | off_t ooffset; |
258 | |
808 | |
259 | pthread_mutex_lock (&iolock); |
809 | LOCK (preadwritelock); |
260 | ooffset = lseek (fd, 0, SEEK_CUR); |
810 | ooffset = lseek (fd, 0, SEEK_CUR); |
261 | lseek (fd, offset, SEEK_SET); |
811 | lseek (fd, offset, SEEK_SET); |
262 | res = read (fd, buf, count); |
812 | res = read (fd, buf, count); |
263 | lseek (fd, ooffset, SEEK_SET); |
813 | lseek (fd, ooffset, SEEK_SET); |
264 | pthread_mutex_unlock (&iolock); |
814 | UNLOCK (preadwritelock); |
265 | |
815 | |
266 | return res; |
816 | return res; |
267 | } |
817 | } |
268 | |
818 | |
269 | static ssize_t |
|
|
270 | pwrite (int fd, void *buf, size_t count, off_t offset) |
819 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
271 | { |
820 | { |
272 | ssize_t res; |
821 | ssize_t res; |
273 | off_t ooffset; |
822 | off_t ooffset; |
274 | |
823 | |
275 | pthread_mutex_lock (&iolock); |
824 | LOCK (preadwritelock); |
276 | ooffset = lseek (fd, 0, SEEK_CUR); |
825 | ooffset = lseek (fd, 0, SEEK_CUR); |
277 | lseek (fd, offset, SEEK_SET); |
826 | lseek (fd, offset, SEEK_SET); |
278 | res = write (fd, buf, count); |
827 | res = write (fd, buf, count); |
279 | lseek (fd, offset, SEEK_SET); |
828 | lseek (fd, offset, SEEK_SET); |
280 | pthread_mutex_unlock (&iolock); |
829 | UNLOCK (preadwritelock); |
281 | |
830 | |
282 | return res; |
831 | return res; |
283 | } |
832 | } |
284 | #endif |
833 | #endif |
285 | |
834 | |
286 | #if !HAVE_FDATASYNC |
835 | #if !HAVE_FDATASYNC |
287 | # define fdatasync fsync |
836 | # define fdatasync fsync |
288 | #endif |
837 | #endif |
289 | |
838 | |
290 | #if !HAVE_READAHEAD |
839 | #if !HAVE_READAHEAD |
291 | # define readahead aio_readahead |
840 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
292 | |
841 | |
293 | static char readahead_buf[4096]; |
842 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
294 | |
|
|
295 | static ssize_t |
|
|
296 | readahead (int fd, off_t offset, size_t count) |
|
|
297 | { |
843 | { |
|
|
844 | dBUF; |
|
|
845 | |
298 | while (count > 0) |
846 | while (count > 0) |
299 | { |
847 | { |
300 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
848 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
301 | |
849 | |
302 | pread (fd, readahead_buf, len, offset); |
850 | pread (fd, aio_buf, len, offset); |
303 | offset += len; |
851 | offset += len; |
304 | count -= len; |
852 | count -= len; |
305 | } |
853 | } |
306 | |
854 | |
307 | errno = 0; |
855 | errno = 0; |
308 | } |
856 | } |
|
|
857 | |
309 | #endif |
858 | #endif |
310 | |
859 | |
311 | static void * |
860 | #if !HAVE_READDIR_R |
|
|
861 | # define readdir_r aio_readdir_r |
|
|
862 | |
|
|
863 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
864 | |
|
|
865 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
866 | { |
|
|
867 | struct dirent *e; |
|
|
868 | int errorno; |
|
|
869 | |
|
|
870 | LOCK (readdirlock); |
|
|
871 | |
|
|
872 | e = readdir (dirp); |
|
|
873 | errorno = errno; |
|
|
874 | |
|
|
875 | if (e) |
|
|
876 | { |
|
|
877 | *res = ent; |
|
|
878 | strcpy (ent->d_name, e->d_name); |
|
|
879 | } |
|
|
880 | else |
|
|
881 | *res = 0; |
|
|
882 | |
|
|
883 | UNLOCK (readdirlock); |
|
|
884 | |
|
|
885 | errno = errorno; |
|
|
886 | return e ? 0 : -1; |
|
|
887 | } |
|
|
888 | #endif |
|
|
889 | |
|
|
890 | /* sendfile always needs emulation */ |
|
|
891 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
892 | { |
|
|
893 | ssize_t res; |
|
|
894 | |
|
|
895 | if (!count) |
|
|
896 | return 0; |
|
|
897 | |
|
|
898 | #if HAVE_SENDFILE |
|
|
899 | # if __linux |
|
|
900 | res = sendfile (ofd, ifd, &offset, count); |
|
|
901 | |
|
|
902 | # elif __freebsd |
|
|
903 | /* |
|
|
904 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
905 | * wasted on making it similar to other I/O functions. |
|
|
906 | */ |
|
|
907 | { |
|
|
908 | off_t sbytes; |
|
|
909 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
910 | |
|
|
911 | if (res < 0 && sbytes) |
|
|
912 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
913 | res = sbytes; |
|
|
914 | } |
|
|
915 | |
|
|
916 | # elif __hpux |
|
|
917 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
918 | |
|
|
919 | # elif __solaris |
|
|
920 | { |
|
|
921 | struct sendfilevec vec; |
|
|
922 | size_t sbytes; |
|
|
923 | |
|
|
924 | vec.sfv_fd = ifd; |
|
|
925 | vec.sfv_flag = 0; |
|
|
926 | vec.sfv_off = offset; |
|
|
927 | vec.sfv_len = count; |
|
|
928 | |
|
|
929 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
930 | |
|
|
931 | if (res < 0 && sbytes) |
|
|
932 | res = sbytes; |
|
|
933 | } |
|
|
934 | |
|
|
935 | # endif |
|
|
936 | #else |
|
|
937 | res = -1; |
|
|
938 | errno = ENOSYS; |
|
|
939 | #endif |
|
|
940 | |
|
|
941 | if (res < 0 |
|
|
942 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
943 | #if __solaris |
|
|
944 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
945 | #endif |
|
|
946 | ) |
|
|
947 | ) |
|
|
948 | { |
|
|
949 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
950 | dBUF; |
|
|
951 | |
|
|
952 | res = 0; |
|
|
953 | |
|
|
954 | while (count) |
|
|
955 | { |
|
|
956 | ssize_t cnt; |
|
|
957 | |
|
|
958 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
959 | |
|
|
960 | if (cnt <= 0) |
|
|
961 | { |
|
|
962 | if (cnt && !res) res = -1; |
|
|
963 | break; |
|
|
964 | } |
|
|
965 | |
|
|
966 | cnt = write (ofd, aio_buf, cnt); |
|
|
967 | |
|
|
968 | if (cnt <= 0) |
|
|
969 | { |
|
|
970 | if (cnt && !res) res = -1; |
|
|
971 | break; |
|
|
972 | } |
|
|
973 | |
|
|
974 | offset += cnt; |
|
|
975 | res += cnt; |
|
|
976 | count -= cnt; |
|
|
977 | } |
|
|
978 | } |
|
|
979 | |
|
|
980 | return res; |
|
|
981 | } |
|
|
982 | |
|
|
983 | /* read a full directory */ |
|
|
984 | static void scandir_ (aio_req req, worker *self) |
|
|
985 | { |
|
|
986 | DIR *dirp; |
|
|
987 | union |
|
|
988 | { |
|
|
989 | struct dirent d; |
|
|
990 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
991 | } *u; |
|
|
992 | struct dirent *entp; |
|
|
993 | char *name, *names; |
|
|
994 | int memlen = 4096; |
|
|
995 | int memofs = 0; |
|
|
996 | int res = 0; |
|
|
997 | int errorno; |
|
|
998 | |
|
|
999 | LOCK (wrklock); |
|
|
1000 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1001 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1002 | req->ptr2 = names = malloc (memlen); |
|
|
1003 | UNLOCK (wrklock); |
|
|
1004 | |
|
|
1005 | if (dirp && u && names) |
|
|
1006 | for (;;) |
|
|
1007 | { |
|
|
1008 | errno = 0; |
|
|
1009 | readdir_r (dirp, &u->d, &entp); |
|
|
1010 | |
|
|
1011 | if (!entp) |
|
|
1012 | break; |
|
|
1013 | |
|
|
1014 | name = entp->d_name; |
|
|
1015 | |
|
|
1016 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1017 | { |
|
|
1018 | int len = strlen (name) + 1; |
|
|
1019 | |
|
|
1020 | res++; |
|
|
1021 | |
|
|
1022 | while (memofs + len > memlen) |
|
|
1023 | { |
|
|
1024 | memlen *= 2; |
|
|
1025 | LOCK (wrklock); |
|
|
1026 | req->ptr2 = names = realloc (names, memlen); |
|
|
1027 | UNLOCK (wrklock); |
|
|
1028 | |
|
|
1029 | if (!names) |
|
|
1030 | break; |
|
|
1031 | } |
|
|
1032 | |
|
|
1033 | memcpy (names + memofs, name, len); |
|
|
1034 | memofs += len; |
|
|
1035 | } |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | if (errno) |
|
|
1039 | res = -1; |
|
|
1040 | |
|
|
1041 | req->result = res; |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | /*****************************************************************************/ |
|
|
1045 | |
312 | aio_proc (void *thr_arg) |
1046 | static void *aio_proc (void *thr_arg) |
313 | { |
1047 | { |
314 | aio_req req; |
1048 | aio_req req; |
315 | int type; |
1049 | struct timespec ts; |
|
|
1050 | worker *self = (worker *)thr_arg; |
316 | |
1051 | |
317 | do |
1052 | /* try to distribute timeouts somewhat evenly */ |
|
|
1053 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1054 | * (1000000000UL / 1024UL); |
|
|
1055 | |
|
|
1056 | for (;;) |
318 | { |
1057 | { |
319 | pthread_mutex_lock (&reqlock); |
1058 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1059 | |
|
|
1060 | LOCK (reqlock); |
320 | |
1061 | |
321 | for (;;) |
1062 | for (;;) |
322 | { |
1063 | { |
323 | req = reqs; |
1064 | self->req = req = reqq_shift (&req_queue); |
324 | |
|
|
325 | if (reqs) |
|
|
326 | { |
|
|
327 | reqs = reqs->next; |
|
|
328 | if (!reqs) reqe = 0; |
|
|
329 | } |
|
|
330 | |
1065 | |
331 | if (req) |
1066 | if (req) |
332 | break; |
1067 | break; |
333 | |
1068 | |
|
|
1069 | ++idle; |
|
|
1070 | |
|
|
1071 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1072 | == ETIMEDOUT) |
|
|
1073 | { |
|
|
1074 | if (idle > max_idle) |
|
|
1075 | { |
|
|
1076 | --idle; |
|
|
1077 | UNLOCK (reqlock); |
|
|
1078 | LOCK (wrklock); |
|
|
1079 | --started; |
|
|
1080 | UNLOCK (wrklock); |
|
|
1081 | goto quit; |
|
|
1082 | } |
|
|
1083 | |
|
|
1084 | /* we are allowed to idle, so do so without any timeout */ |
334 | pthread_cond_wait (&reqwait, &reqlock); |
1085 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1086 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | --idle; |
335 | } |
1090 | } |
336 | |
1091 | |
337 | pthread_mutex_unlock (&reqlock); |
1092 | --nready; |
|
|
1093 | |
|
|
1094 | UNLOCK (reqlock); |
338 | |
1095 | |
339 | errno = 0; /* strictly unnecessary */ |
1096 | errno = 0; /* strictly unnecessary */ |
340 | |
1097 | |
341 | type = req->type; |
1098 | if (!(req->flags & FLAG_CANCELLED)) |
342 | |
|
|
343 | switch (type) |
1099 | switch (req->type) |
344 | { |
1100 | { |
345 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1101 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
346 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1102 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
347 | |
1103 | |
348 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1104 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
|
|
1105 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
349 | |
1106 | |
350 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1107 | case REQ_STAT: req->result = stat (req->ptr1, req->statdata); break; |
351 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1108 | case REQ_LSTAT: req->result = lstat (req->ptr1, req->statdata); break; |
352 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1109 | case REQ_FSTAT: req->result = fstat (req->int1, req->statdata); break; |
353 | |
1110 | |
354 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1111 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
355 | case REQ_CLOSE: req->result = close (req->fd); break; |
1112 | case REQ_CLOSE: req->result = close (req->int1); break; |
356 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1113 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1114 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1115 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1116 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1117 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1118 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1119 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
357 | |
1120 | |
358 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1121 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
359 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1122 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1123 | case REQ_READDIR: scandir_ (req, self); break; |
360 | |
1124 | |
|
|
1125 | case REQ_BUSY: |
|
|
1126 | { |
|
|
1127 | struct timeval tv; |
|
|
1128 | |
|
|
1129 | tv.tv_sec = req->int1; |
|
|
1130 | tv.tv_usec = req->int2; |
|
|
1131 | |
|
|
1132 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | case REQ_GROUP: |
|
|
1136 | case REQ_NOP: |
|
|
1137 | break; |
|
|
1138 | |
361 | case REQ_QUIT: |
1139 | case REQ_QUIT: |
362 | break; |
1140 | goto quit; |
363 | |
1141 | |
364 | default: |
1142 | default: |
365 | req->result = ENOSYS; |
1143 | req->result = ENOSYS; |
366 | break; |
1144 | break; |
367 | } |
1145 | } |
368 | |
1146 | |
369 | req->errorno = errno; |
1147 | req->errorno = errno; |
370 | |
1148 | |
371 | pthread_mutex_lock (&reslock); |
1149 | LOCK (reslock); |
372 | |
1150 | |
373 | req->next = 0; |
1151 | ++npending; |
374 | |
1152 | |
375 | if (rese) |
1153 | if (!reqq_push (&res_queue, req)) |
376 | { |
|
|
377 | rese->next = req; |
|
|
378 | rese = req; |
|
|
379 | } |
|
|
380 | else |
|
|
381 | { |
|
|
382 | rese = ress = req; |
|
|
383 | |
|
|
384 | /* write a dummy byte to the pipe so fh becomes ready */ |
1154 | /* write a dummy byte to the pipe so fh becomes ready */ |
385 | write (respipe [1], &respipe, 1); |
1155 | write (respipe [1], &respipe, 1); |
386 | } |
|
|
387 | |
1156 | |
388 | pthread_mutex_unlock (&reslock); |
1157 | self->req = 0; |
|
|
1158 | worker_clear (self); |
|
|
1159 | |
|
|
1160 | UNLOCK (reslock); |
389 | } |
1161 | } |
390 | while (type != REQ_QUIT); |
1162 | |
|
|
1163 | quit: |
|
|
1164 | LOCK (wrklock); |
|
|
1165 | worker_free (self); |
|
|
1166 | UNLOCK (wrklock); |
391 | |
1167 | |
392 | return 0; |
1168 | return 0; |
393 | } |
1169 | } |
394 | |
1170 | |
|
|
1171 | /*****************************************************************************/ |
|
|
1172 | |
|
|
1173 | static void atfork_prepare (void) |
|
|
1174 | { |
|
|
1175 | LOCK (wrklock); |
|
|
1176 | LOCK (reqlock); |
|
|
1177 | LOCK (reslock); |
|
|
1178 | #if !HAVE_PREADWRITE |
|
|
1179 | LOCK (preadwritelock); |
|
|
1180 | #endif |
|
|
1181 | #if !HAVE_READDIR_R |
|
|
1182 | LOCK (readdirlock); |
|
|
1183 | #endif |
|
|
1184 | } |
|
|
1185 | |
|
|
1186 | static void atfork_parent (void) |
|
|
1187 | { |
|
|
1188 | #if !HAVE_READDIR_R |
|
|
1189 | UNLOCK (readdirlock); |
|
|
1190 | #endif |
|
|
1191 | #if !HAVE_PREADWRITE |
|
|
1192 | UNLOCK (preadwritelock); |
|
|
1193 | #endif |
|
|
1194 | UNLOCK (reslock); |
|
|
1195 | UNLOCK (reqlock); |
|
|
1196 | UNLOCK (wrklock); |
|
|
1197 | } |
|
|
1198 | |
|
|
1199 | static void atfork_child (void) |
|
|
1200 | { |
|
|
1201 | aio_req prv; |
|
|
1202 | |
|
|
1203 | while (prv = reqq_shift (&req_queue)) |
|
|
1204 | req_free (prv); |
|
|
1205 | |
|
|
1206 | while (prv = reqq_shift (&res_queue)) |
|
|
1207 | req_free (prv); |
|
|
1208 | |
|
|
1209 | while (wrk_first.next != &wrk_first) |
|
|
1210 | { |
|
|
1211 | worker *wrk = wrk_first.next; |
|
|
1212 | |
|
|
1213 | if (wrk->req) |
|
|
1214 | req_free (wrk->req); |
|
|
1215 | |
|
|
1216 | worker_clear (wrk); |
|
|
1217 | worker_free (wrk); |
|
|
1218 | } |
|
|
1219 | |
|
|
1220 | started = 0; |
|
|
1221 | idle = 0; |
|
|
1222 | nreqs = 0; |
|
|
1223 | nready = 0; |
|
|
1224 | npending = 0; |
|
|
1225 | |
|
|
1226 | close (respipe [0]); |
|
|
1227 | close (respipe [1]); |
|
|
1228 | create_pipe (); |
|
|
1229 | |
|
|
1230 | atfork_parent (); |
|
|
1231 | } |
|
|
1232 | |
|
|
1233 | #define dREQ \ |
|
|
1234 | aio_req req; \ |
|
|
1235 | int req_pri = next_pri; \ |
|
|
1236 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1237 | \ |
|
|
1238 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1239 | croak ("callback must be undef or of reference type"); \ |
|
|
1240 | \ |
|
|
1241 | Newz (0, req, 1, aio_cb); \ |
|
|
1242 | if (!req) \ |
|
|
1243 | croak ("out of memory during aio_req allocation"); \ |
|
|
1244 | \ |
|
|
1245 | req->callback = newSVsv (callback); \ |
|
|
1246 | req->pri = req_pri |
|
|
1247 | |
|
|
1248 | #define REQ_SEND \ |
|
|
1249 | req_send (req); \ |
|
|
1250 | \ |
|
|
1251 | if (GIMME_V != G_VOID) \ |
|
|
1252 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1253 | |
395 | MODULE = IO::AIO PACKAGE = IO::AIO |
1254 | MODULE = IO::AIO PACKAGE = IO::AIO |
396 | |
1255 | |
397 | PROTOTYPES: ENABLE |
1256 | PROTOTYPES: ENABLE |
398 | |
1257 | |
399 | BOOT: |
1258 | BOOT: |
400 | { |
1259 | { |
401 | if (pipe (respipe)) |
1260 | HV *stash = gv_stashpv ("IO::AIO", 1); |
402 | croak ("unable to initialize result pipe"); |
|
|
403 | |
1261 | |
404 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
1262 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
405 | croak ("cannot set result pipe to nonblocking mode"); |
1263 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1264 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1265 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1266 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1267 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
406 | |
1268 | |
407 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
1269 | create_pipe (); |
408 | croak ("cannot set result pipe to nonblocking mode"); |
1270 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
409 | } |
1271 | } |
410 | |
1272 | |
411 | void |
1273 | void |
412 | min_parallel(nthreads) |
1274 | max_poll_reqs (int nreqs) |
413 | int nthreads |
|
|
414 | PROTOTYPE: $ |
1275 | PROTOTYPE: $ |
415 | CODE: |
1276 | CODE: |
416 | while (nthreads > started) |
1277 | max_poll_reqs = nreqs; |
417 | start_thread (); |
|
|
418 | |
1278 | |
419 | void |
1279 | void |
420 | max_parallel(nthreads) |
1280 | max_poll_time (double nseconds) |
421 | int nthreads |
|
|
422 | PROTOTYPE: $ |
1281 | PROTOTYPE: $ |
423 | CODE: |
1282 | CODE: |
424 | { |
1283 | max_poll_time = nseconds * AIO_TICKS; |
425 | int cur = started; |
|
|
426 | while (cur > nthreads) |
|
|
427 | { |
|
|
428 | end_thread (); |
|
|
429 | cur--; |
|
|
430 | } |
|
|
431 | |
1284 | |
432 | while (started > nthreads) |
1285 | void |
433 | { |
1286 | min_parallel (int nthreads) |
434 | poll_wait (); |
1287 | PROTOTYPE: $ |
435 | poll_cb (); |
1288 | |
436 | } |
1289 | void |
437 | } |
1290 | max_parallel (int nthreads) |
|
|
1291 | PROTOTYPE: $ |
|
|
1292 | |
|
|
1293 | void |
|
|
1294 | max_idle (int nthreads) |
|
|
1295 | PROTOTYPE: $ |
|
|
1296 | CODE: |
|
|
1297 | set_max_idle (nthreads); |
438 | |
1298 | |
439 | int |
1299 | int |
440 | max_outstanding(nreqs) |
1300 | max_outstanding (int maxreqs) |
441 | int nreqs |
1301 | PROTOTYPE: $ |
442 | PROTOTYPE: $ |
|
|
443 | CODE: |
1302 | CODE: |
444 | RETVAL = max_outstanding; |
1303 | RETVAL = max_outstanding; |
445 | max_outstanding = nreqs; |
1304 | max_outstanding = maxreqs; |
|
|
1305 | OUTPUT: |
|
|
1306 | RETVAL |
446 | |
1307 | |
447 | void |
1308 | void |
448 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1309 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
449 | SV * pathname |
1310 | SV * pathname |
450 | int flags |
1311 | int flags |
451 | int mode |
1312 | int mode |
452 | SV * callback |
1313 | SV * callback |
453 | PROTOTYPE: $$$;$ |
1314 | PROTOTYPE: $$$;$ |
454 | CODE: |
1315 | PPCODE: |
455 | { |
1316 | { |
456 | aio_req req; |
1317 | dREQ; |
457 | |
|
|
458 | Newz (0, req, 1, aio_cb); |
|
|
459 | |
|
|
460 | if (!req) |
|
|
461 | croak ("out of memory during aio_req allocation"); |
|
|
462 | |
1318 | |
463 | req->type = REQ_OPEN; |
1319 | req->type = REQ_OPEN; |
464 | req->data = newSVsv (pathname); |
1320 | req->sv1 = newSVsv (pathname); |
465 | req->dataptr = SvPV_nolen (req->data); |
1321 | req->ptr1 = SvPVbyte_nolen (pathname); |
466 | req->fd = flags; |
1322 | req->int1 = flags; |
467 | req->mode = mode; |
1323 | req->mode = mode; |
468 | req->callback = SvREFCNT_inc (callback); |
|
|
469 | |
1324 | |
470 | send_req (req); |
1325 | REQ_SEND; |
471 | } |
1326 | } |
472 | |
1327 | |
473 | void |
1328 | void |
474 | aio_close(fh,callback=&PL_sv_undef) |
1329 | aio_close (fh,callback=&PL_sv_undef) |
475 | SV * fh |
1330 | SV * fh |
476 | SV * callback |
1331 | SV * callback |
477 | PROTOTYPE: $;$ |
1332 | PROTOTYPE: $;$ |
478 | ALIAS: |
1333 | ALIAS: |
479 | aio_close = REQ_CLOSE |
1334 | aio_close = REQ_CLOSE |
480 | aio_fsync = REQ_FSYNC |
1335 | aio_fsync = REQ_FSYNC |
481 | aio_fdatasync = REQ_FDATASYNC |
1336 | aio_fdatasync = REQ_FDATASYNC |
482 | CODE: |
1337 | PPCODE: |
483 | { |
1338 | { |
484 | aio_req req; |
1339 | dREQ; |
485 | |
|
|
486 | Newz (0, req, 1, aio_cb); |
|
|
487 | |
|
|
488 | if (!req) |
|
|
489 | croak ("out of memory during aio_req allocation"); |
|
|
490 | |
1340 | |
491 | req->type = ix; |
1341 | req->type = ix; |
492 | req->fh = newSVsv (fh); |
1342 | req->fh = newSVsv (fh); |
493 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1343 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
494 | req->callback = SvREFCNT_inc (callback); |
|
|
495 | |
1344 | |
496 | send_req (req); |
1345 | REQ_SEND (req); |
497 | } |
1346 | } |
498 | |
1347 | |
499 | void |
1348 | void |
500 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1349 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
501 | SV * fh |
1350 | SV * fh |
502 | UV offset |
1351 | UV offset |
503 | IV length |
1352 | UV length |
504 | SV * data |
1353 | SV * data |
505 | IV dataoffset |
1354 | UV dataoffset |
506 | SV * callback |
1355 | SV * callback |
507 | ALIAS: |
1356 | ALIAS: |
508 | aio_read = REQ_READ |
1357 | aio_read = REQ_READ |
509 | aio_write = REQ_WRITE |
1358 | aio_write = REQ_WRITE |
510 | PROTOTYPE: $$$$$;$ |
1359 | PROTOTYPE: $$$$$;$ |
511 | CODE: |
1360 | PPCODE: |
512 | { |
1361 | { |
513 | aio_req req; |
|
|
514 | STRLEN svlen; |
1362 | STRLEN svlen; |
515 | char *svptr = SvPV (data, svlen); |
1363 | char *svptr = SvPVbyte (data, svlen); |
516 | |
1364 | |
517 | SvUPGRADE (data, SVt_PV); |
1365 | SvUPGRADE (data, SVt_PV); |
518 | SvPOK_on (data); |
1366 | SvPOK_on (data); |
519 | |
1367 | |
520 | if (dataoffset < 0) |
1368 | if (dataoffset < 0) |
… | |
… | |
536 | } |
1384 | } |
537 | |
1385 | |
538 | if (length < 0) |
1386 | if (length < 0) |
539 | croak ("length must not be negative"); |
1387 | croak ("length must not be negative"); |
540 | |
1388 | |
541 | Newz (0, req, 1, aio_cb); |
1389 | { |
|
|
1390 | dREQ; |
542 | |
1391 | |
543 | if (!req) |
|
|
544 | croak ("out of memory during aio_req allocation"); |
|
|
545 | |
|
|
546 | req->type = ix; |
1392 | req->type = ix; |
547 | req->fh = newSVsv (fh); |
1393 | req->fh = newSVsv (fh); |
548 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1394 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
549 | : IoOFP (sv_2io (fh))); |
1395 | : IoOFP (sv_2io (fh))); |
550 | req->offset = offset; |
1396 | req->offs = offset; |
551 | req->length = length; |
1397 | req->size = length; |
552 | req->data = SvREFCNT_inc (data); |
1398 | req->sv1 = SvREFCNT_inc (data); |
553 | req->dataptr = (char *)svptr + dataoffset; |
1399 | req->ptr1 = (char *)svptr + dataoffset; |
554 | req->callback = SvREFCNT_inc (callback); |
1400 | req->stroffset = dataoffset; |
555 | |
1401 | |
556 | send_req (req); |
1402 | if (!SvREADONLY (data)) |
557 | } |
1403 | { |
|
|
1404 | SvREADONLY_on (data); |
|
|
1405 | req->flags |= FLAG_DATA_RO_OFF; |
|
|
1406 | } |
558 | |
1407 | |
|
|
1408 | REQ_SEND; |
|
|
1409 | } |
|
|
1410 | } |
|
|
1411 | |
559 | void |
1412 | void |
|
|
1413 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1414 | SV * path |
|
|
1415 | SV * callback |
|
|
1416 | PROTOTYPE: $$;$ |
|
|
1417 | PPCODE: |
|
|
1418 | { |
|
|
1419 | SV *data; |
|
|
1420 | dREQ; |
|
|
1421 | |
|
|
1422 | data = newSV (NAME_MAX); |
|
|
1423 | SvPOK_on (data); |
|
|
1424 | |
|
|
1425 | req->type = REQ_READLINK; |
|
|
1426 | req->fh = newSVsv (path); |
|
|
1427 | req->ptr2 = SvPVbyte_nolen (path); |
|
|
1428 | req->sv1 = data; |
|
|
1429 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1430 | |
|
|
1431 | REQ_SEND; |
|
|
1432 | } |
|
|
1433 | |
|
|
1434 | void |
|
|
1435 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1436 | SV * out_fh |
|
|
1437 | SV * in_fh |
|
|
1438 | UV in_offset |
|
|
1439 | UV length |
|
|
1440 | SV * callback |
|
|
1441 | PROTOTYPE: $$$$;$ |
|
|
1442 | PPCODE: |
|
|
1443 | { |
|
|
1444 | dREQ; |
|
|
1445 | |
|
|
1446 | req->type = REQ_SENDFILE; |
|
|
1447 | req->fh = newSVsv (out_fh); |
|
|
1448 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1449 | req->sv2 = newSVsv (in_fh); |
|
|
1450 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1451 | req->offs = in_offset; |
|
|
1452 | req->size = length; |
|
|
1453 | |
|
|
1454 | REQ_SEND; |
|
|
1455 | } |
|
|
1456 | |
|
|
1457 | void |
560 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1458 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
561 | SV * fh |
1459 | SV * fh |
562 | UV offset |
1460 | UV offset |
563 | IV length |
1461 | IV length |
564 | SV * callback |
1462 | SV * callback |
565 | PROTOTYPE: $$$;$ |
1463 | PROTOTYPE: $$$;$ |
566 | CODE: |
1464 | PPCODE: |
567 | { |
1465 | { |
568 | aio_req req; |
1466 | dREQ; |
569 | |
|
|
570 | if (length < 0) |
|
|
571 | croak ("length must not be negative"); |
|
|
572 | |
|
|
573 | Newz (0, req, 1, aio_cb); |
|
|
574 | |
|
|
575 | if (!req) |
|
|
576 | croak ("out of memory during aio_req allocation"); |
|
|
577 | |
1467 | |
578 | req->type = REQ_READAHEAD; |
1468 | req->type = REQ_READAHEAD; |
579 | req->fh = newSVsv (fh); |
1469 | req->fh = newSVsv (fh); |
580 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1470 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
581 | req->offset = offset; |
1471 | req->offs = offset; |
582 | req->length = length; |
1472 | req->size = length; |
583 | req->callback = SvREFCNT_inc (callback); |
|
|
584 | |
1473 | |
585 | send_req (req); |
1474 | REQ_SEND; |
586 | } |
1475 | } |
587 | |
1476 | |
588 | void |
1477 | void |
589 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1478 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
590 | SV * fh_or_path |
1479 | SV * fh_or_path |
591 | SV * callback |
1480 | SV * callback |
592 | ALIAS: |
1481 | ALIAS: |
593 | aio_stat = REQ_STAT |
1482 | aio_stat = REQ_STAT |
594 | aio_lstat = REQ_LSTAT |
1483 | aio_lstat = REQ_LSTAT |
595 | CODE: |
1484 | PPCODE: |
596 | { |
1485 | { |
597 | aio_req req; |
1486 | dREQ; |
598 | |
|
|
599 | Newz (0, req, 1, aio_cb); |
|
|
600 | |
|
|
601 | if (!req) |
|
|
602 | croak ("out of memory during aio_req allocation"); |
|
|
603 | |
1487 | |
604 | New (0, req->statdata, 1, Stat_t); |
1488 | New (0, req->statdata, 1, Stat_t); |
605 | |
|
|
606 | if (!req->statdata) |
1489 | if (!req->statdata) |
|
|
1490 | { |
|
|
1491 | req_free (req); |
607 | croak ("out of memory during aio_req->statdata allocation"); |
1492 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1493 | } |
608 | |
1494 | |
609 | if (SvPOK (fh_or_path)) |
1495 | if (SvPOK (fh_or_path)) |
610 | { |
1496 | { |
611 | req->type = ix; |
1497 | req->type = ix; |
612 | req->data = newSVsv (fh_or_path); |
1498 | req->sv1 = newSVsv (fh_or_path); |
613 | req->dataptr = SvPV_nolen (req->data); |
1499 | req->ptr1 = SvPVbyte_nolen (fh_or_path); |
614 | } |
1500 | } |
615 | else |
1501 | else |
616 | { |
1502 | { |
617 | req->type = REQ_FSTAT; |
1503 | req->type = REQ_FSTAT; |
618 | req->fh = newSVsv (fh_or_path); |
1504 | req->fh = newSVsv (fh_or_path); |
619 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1505 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
620 | } |
1506 | } |
621 | |
1507 | |
622 | req->callback = SvREFCNT_inc (callback); |
1508 | REQ_SEND; |
623 | |
|
|
624 | send_req (req); |
|
|
625 | } |
1509 | } |
626 | |
1510 | |
627 | void |
1511 | void |
628 | aio_unlink(pathname,callback=&PL_sv_undef) |
1512 | aio_unlink (pathname,callback=&PL_sv_undef) |
629 | SV * pathname |
1513 | SV * pathname |
630 | SV * callback |
1514 | SV * callback |
|
|
1515 | ALIAS: |
|
|
1516 | aio_unlink = REQ_UNLINK |
|
|
1517 | aio_rmdir = REQ_RMDIR |
|
|
1518 | aio_readdir = REQ_READDIR |
|
|
1519 | PPCODE: |
|
|
1520 | { |
|
|
1521 | dREQ; |
|
|
1522 | |
|
|
1523 | req->type = ix; |
|
|
1524 | req->sv1 = newSVsv (pathname); |
|
|
1525 | req->ptr1 = SvPVbyte_nolen (pathname); |
|
|
1526 | |
|
|
1527 | REQ_SEND; |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | void |
|
|
1531 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1532 | SV * oldpath |
|
|
1533 | SV * newpath |
|
|
1534 | SV * callback |
|
|
1535 | ALIAS: |
|
|
1536 | aio_link = REQ_LINK |
|
|
1537 | aio_symlink = REQ_SYMLINK |
|
|
1538 | aio_rename = REQ_RENAME |
|
|
1539 | PPCODE: |
|
|
1540 | { |
|
|
1541 | dREQ; |
|
|
1542 | |
|
|
1543 | req->type = ix; |
|
|
1544 | req->fh = newSVsv (oldpath); |
|
|
1545 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1546 | req->sv1 = newSVsv (newpath); |
|
|
1547 | req->ptr1 = SvPVbyte_nolen (newpath); |
|
|
1548 | |
|
|
1549 | REQ_SEND; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | void |
|
|
1553 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1554 | SV * pathname |
|
|
1555 | SV * callback |
|
|
1556 | UV mode |
|
|
1557 | UV dev |
|
|
1558 | PPCODE: |
|
|
1559 | { |
|
|
1560 | dREQ; |
|
|
1561 | |
|
|
1562 | req->type = REQ_MKNOD; |
|
|
1563 | req->sv1 = newSVsv (pathname); |
|
|
1564 | req->ptr1 = SvPVbyte_nolen (pathname); |
|
|
1565 | req->mode = (mode_t)mode; |
|
|
1566 | req->offs = dev; |
|
|
1567 | |
|
|
1568 | REQ_SEND; |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | void |
|
|
1572 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1573 | double delay |
|
|
1574 | SV * callback |
|
|
1575 | PPCODE: |
|
|
1576 | { |
|
|
1577 | dREQ; |
|
|
1578 | |
|
|
1579 | req->type = REQ_BUSY; |
|
|
1580 | req->int1 = delay < 0. ? 0 : delay; |
|
|
1581 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
|
|
1582 | |
|
|
1583 | REQ_SEND; |
|
|
1584 | } |
|
|
1585 | |
|
|
1586 | void |
|
|
1587 | aio_group (callback=&PL_sv_undef) |
|
|
1588 | SV * callback |
|
|
1589 | PROTOTYPE: ;$ |
|
|
1590 | PPCODE: |
|
|
1591 | { |
|
|
1592 | dREQ; |
|
|
1593 | |
|
|
1594 | req->type = REQ_GROUP; |
|
|
1595 | |
|
|
1596 | req_send (req); |
|
|
1597 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1598 | } |
|
|
1599 | |
|
|
1600 | void |
|
|
1601 | aio_nop (callback=&PL_sv_undef) |
|
|
1602 | SV * callback |
|
|
1603 | PPCODE: |
|
|
1604 | { |
|
|
1605 | dREQ; |
|
|
1606 | |
|
|
1607 | req->type = REQ_NOP; |
|
|
1608 | |
|
|
1609 | REQ_SEND; |
|
|
1610 | } |
|
|
1611 | |
|
|
1612 | int |
|
|
1613 | aioreq_pri (int pri = 0) |
|
|
1614 | PROTOTYPE: ;$ |
631 | CODE: |
1615 | CODE: |
632 | { |
1616 | RETVAL = next_pri - PRI_BIAS; |
633 | aio_req req; |
1617 | if (items > 0) |
634 | |
1618 | { |
635 | Newz (0, req, 1, aio_cb); |
1619 | if (pri < PRI_MIN) pri = PRI_MIN; |
636 | |
1620 | if (pri > PRI_MAX) pri = PRI_MAX; |
637 | if (!req) |
1621 | next_pri = pri + PRI_BIAS; |
638 | croak ("out of memory during aio_req allocation"); |
1622 | } |
639 | |
1623 | OUTPUT: |
640 | req->type = REQ_UNLINK; |
1624 | RETVAL |
641 | req->data = newSVsv (pathname); |
|
|
642 | req->dataptr = SvPV_nolen (req->data); |
|
|
643 | req->callback = SvREFCNT_inc (callback); |
|
|
644 | |
|
|
645 | send_req (req); |
|
|
646 | } |
|
|
647 | |
1625 | |
648 | void |
1626 | void |
|
|
1627 | aioreq_nice (int nice = 0) |
|
|
1628 | CODE: |
|
|
1629 | nice = next_pri - nice; |
|
|
1630 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1631 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1632 | next_pri = nice + PRI_BIAS; |
|
|
1633 | |
|
|
1634 | void |
649 | flush() |
1635 | flush () |
650 | PROTOTYPE: |
1636 | PROTOTYPE: |
651 | CODE: |
1637 | CODE: |
652 | while (nreqs) |
1638 | while (nreqs) |
653 | { |
1639 | { |
654 | poll_wait (); |
1640 | poll_wait (); |
655 | poll_cb (); |
1641 | poll_cb (0); |
656 | } |
1642 | } |
657 | |
1643 | |
658 | void |
1644 | void |
659 | poll() |
1645 | poll() |
660 | PROTOTYPE: |
1646 | PROTOTYPE: |
661 | CODE: |
1647 | CODE: |
662 | if (nreqs) |
1648 | if (nreqs) |
663 | { |
1649 | { |
664 | poll_wait (); |
1650 | poll_wait (); |
665 | poll_cb (); |
1651 | poll_cb (0); |
666 | } |
1652 | } |
667 | |
1653 | |
668 | int |
1654 | int |
669 | poll_fileno() |
1655 | poll_fileno() |
670 | PROTOTYPE: |
1656 | PROTOTYPE: |
… | |
… | |
694 | CODE: |
1680 | CODE: |
695 | RETVAL = nreqs; |
1681 | RETVAL = nreqs; |
696 | OUTPUT: |
1682 | OUTPUT: |
697 | RETVAL |
1683 | RETVAL |
698 | |
1684 | |
|
|
1685 | int |
|
|
1686 | nready() |
|
|
1687 | PROTOTYPE: |
|
|
1688 | CODE: |
|
|
1689 | RETVAL = get_nready (); |
|
|
1690 | OUTPUT: |
|
|
1691 | RETVAL |
|
|
1692 | |
|
|
1693 | int |
|
|
1694 | npending() |
|
|
1695 | PROTOTYPE: |
|
|
1696 | CODE: |
|
|
1697 | RETVAL = get_npending (); |
|
|
1698 | OUTPUT: |
|
|
1699 | RETVAL |
|
|
1700 | |
|
|
1701 | int |
|
|
1702 | nthreads() |
|
|
1703 | PROTOTYPE: |
|
|
1704 | CODE: |
|
|
1705 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1706 | RETVAL = started; |
|
|
1707 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1708 | OUTPUT: |
|
|
1709 | RETVAL |
|
|
1710 | |
|
|
1711 | PROTOTYPES: DISABLE |
|
|
1712 | |
|
|
1713 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1714 | |
|
|
1715 | void |
|
|
1716 | cancel (aio_req_ornot req) |
|
|
1717 | CODE: |
|
|
1718 | req_cancel (req); |
|
|
1719 | |
|
|
1720 | void |
|
|
1721 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1722 | CODE: |
|
|
1723 | SvREFCNT_dec (req->callback); |
|
|
1724 | req->callback = newSVsv (callback); |
|
|
1725 | |
|
|
1726 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1727 | |
|
|
1728 | void |
|
|
1729 | add (aio_req grp, ...) |
|
|
1730 | PPCODE: |
|
|
1731 | { |
|
|
1732 | int i; |
|
|
1733 | aio_req req; |
|
|
1734 | |
|
|
1735 | if (grp->int1 == 2) |
|
|
1736 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1737 | |
|
|
1738 | for (i = 1; i < items; ++i ) |
|
|
1739 | { |
|
|
1740 | if (GIMME_V != G_VOID) |
|
|
1741 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1742 | |
|
|
1743 | req = SvAIO_REQ (ST (i)); |
|
|
1744 | |
|
|
1745 | if (req) |
|
|
1746 | { |
|
|
1747 | ++grp->size; |
|
|
1748 | req->grp = grp; |
|
|
1749 | |
|
|
1750 | req->grp_prev = 0; |
|
|
1751 | req->grp_next = grp->grp_first; |
|
|
1752 | |
|
|
1753 | if (grp->grp_first) |
|
|
1754 | grp->grp_first->grp_prev = req; |
|
|
1755 | |
|
|
1756 | grp->grp_first = req; |
|
|
1757 | } |
|
|
1758 | } |
|
|
1759 | } |
|
|
1760 | |
|
|
1761 | void |
|
|
1762 | cancel_subs (aio_req_ornot req) |
|
|
1763 | CODE: |
|
|
1764 | req_cancel_subs (req); |
|
|
1765 | |
|
|
1766 | void |
|
|
1767 | result (aio_req grp, ...) |
|
|
1768 | CODE: |
|
|
1769 | { |
|
|
1770 | int i; |
|
|
1771 | AV *av; |
|
|
1772 | |
|
|
1773 | grp->errorno = errno; |
|
|
1774 | |
|
|
1775 | av = newAV (); |
|
|
1776 | |
|
|
1777 | for (i = 1; i < items; ++i ) |
|
|
1778 | av_push (av, newSVsv (ST (i))); |
|
|
1779 | |
|
|
1780 | SvREFCNT_dec (grp->sv1); |
|
|
1781 | grp->sv1 = (SV *)av; |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | void |
|
|
1785 | errno (aio_req grp, int errorno = errno) |
|
|
1786 | CODE: |
|
|
1787 | grp->errorno = errorno; |
|
|
1788 | |
|
|
1789 | void |
|
|
1790 | limit (aio_req grp, int limit) |
|
|
1791 | CODE: |
|
|
1792 | grp->int2 = limit; |
|
|
1793 | aio_grp_feed (grp); |
|
|
1794 | |
|
|
1795 | void |
|
|
1796 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1797 | CODE: |
|
|
1798 | { |
|
|
1799 | SvREFCNT_dec (grp->sv2); |
|
|
1800 | grp->sv2 = newSVsv (callback); |
|
|
1801 | |
|
|
1802 | if (grp->int2 <= 0) |
|
|
1803 | grp->int2 = 2; |
|
|
1804 | |
|
|
1805 | aio_grp_feed (grp); |
|
|
1806 | } |
|
|
1807 | |