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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) |
1 | #define _XOPEN_SOURCE 500 |
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> |
2 | |
12 | |
3 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
4 | #include "perl.h" |
14 | #include "perl.h" |
5 | #include "XSUB.h" |
15 | #include "XSUB.h" |
6 | |
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> |
7 | #include <sys/types.h> |
25 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
26 | #include <sys/stat.h> |
9 | |
27 | #include <limits.h> |
10 | #include <unistd.h> |
28 | #include <unistd.h> |
11 | #include <fcntl.h> |
29 | #include <fcntl.h> |
12 | #include <signal.h> |
30 | #include <signal.h> |
13 | #include <sched.h> |
31 | #include <sched.h> |
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32 | |
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33 | #if HAVE_SENDFILE |
14 | #if __linux |
34 | # if __linux |
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35 | # include <sys/sendfile.h> |
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36 | # elif __freebsd |
15 | #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 |
16 | #endif |
46 | #endif |
17 | |
47 | |
18 | #include <pthread.h> |
48 | /* number of seconds after which idle threads exit */ |
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49 | #define IDLE_TIMEOUT 10 |
19 | |
50 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
51 | /* used for struct dirent, AIX doesn't provide it */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
52 | #ifndef NAME_MAX |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
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 |
23 | |
60 | |
24 | #if __ia64 |
61 | #if __ia64 |
25 | # 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 |
26 | #else |
65 | #else |
27 | # define STACKSIZE 4096 |
66 | # define STACKSIZE 16384 |
28 | #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; |
29 | |
91 | |
30 | enum { |
92 | enum { |
31 | REQ_QUIT, |
93 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
94 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
95 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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96 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
97 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | 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, |
36 | }; |
104 | }; |
37 | |
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 | |
38 | typedef struct aio_cb { |
109 | typedef struct aio_cb |
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110 | { |
39 | struct aio_cb *volatile next; |
111 | struct aio_cb *volatile next; |
40 | |
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 | off_t offs; |
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117 | size_t size; |
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118 | ssize_t result; |
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119 | |
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120 | STRLEN stroffset; |
41 | int type; |
121 | int type; |
42 | |
122 | int int1, int2; |
43 | int fd; |
123 | int errorno; |
44 | off_t offset; |
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45 | size_t length; |
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46 | ssize_t result; |
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47 | mode_t mode; /* open */ |
124 | mode_t mode; /* open */ |
48 | int errorno; |
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49 | SV *data, *callback; |
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50 | void *dataptr; |
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51 | STRLEN dataoffset; |
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52 | |
125 | |
53 | Stat_t *statdata; |
126 | unsigned char flags; |
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127 | unsigned char pri; |
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128 | |
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129 | SV *self; /* the perl counterpart of this request, if any */ |
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130 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
54 | } aio_cb; |
131 | } aio_cb; |
55 | |
132 | |
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133 | enum { |
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134 | FLAG_CANCELLED = 0x01, |
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135 | FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ |
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136 | FLAG_PTR2_FREE = 0x80, /* need free(ptr2) */ |
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137 | }; |
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138 | |
56 | typedef aio_cb *aio_req; |
139 | typedef aio_cb *aio_req; |
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140 | typedef aio_cb *aio_req_ornot; |
57 | |
141 | |
58 | static int started; |
142 | enum { |
59 | static volatile int nreqs; |
143 | PRI_MIN = -4, |
60 | 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; |
61 | static int respipe [2]; |
219 | static int respipe [2]; |
62 | |
220 | |
63 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
221 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
64 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
222 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
65 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
223 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
66 | |
224 | |
67 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
225 | #if WORDACCESS_UNSAFE |
68 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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69 | |
226 | |
70 | static void |
227 | static unsigned int get_nready () |
71 | poll_wait () |
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72 | { |
228 | { |
73 | if (nreqs && !ress) |
229 | unsigned int retval; |
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230 | |
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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]) |
74 | { |
287 | { |
75 | fd_set rfd; |
288 | q->qe[pri]->next = req; |
76 | FD_ZERO(&rfd); |
289 | q->qe[pri] = req; |
77 | FD_SET(respipe [0], &rfd); |
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78 | |
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79 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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80 | } |
290 | } |
81 | } |
291 | else |
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292 | q->qe[pri] = q->qs[pri] = req; |
82 | |
293 | |
83 | static int |
294 | return q->size++; |
84 | 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) |
85 | { |
398 | { |
86 | dSP; |
399 | dSP; |
87 | int count = 0; |
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88 | aio_req req, prv; |
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89 | |
400 | |
90 | pthread_mutex_lock (&reslock); |
401 | if (req->flags & FLAG_SV1_RO_OFF) |
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402 | SvREADONLY_off (req->sv1); |
91 | |
403 | |
92 | { |
404 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
93 | /* read any signals sent by the worker threads */ |
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94 | char buf [32]; |
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95 | while (read (respipe [0], buf, 32) > 0) |
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96 | ; |
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97 | } |
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98 | |
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99 | req = ress; |
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100 | ress = rese = 0; |
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101 | |
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102 | pthread_mutex_unlock (&reslock); |
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103 | |
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104 | while (req) |
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105 | { |
405 | { |
106 | nreqs--; |
406 | ENTER; |
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407 | SAVETMPS; |
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408 | PUSHMARK (SP); |
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409 | EXTEND (SP, 1); |
107 | |
410 | |
108 | if (req->type == REQ_QUIT) |
411 | switch (req->type) |
109 | started--; |
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110 | else |
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111 | { |
412 | { |
112 | int errorno = errno; |
413 | case REQ_READDIR: |
113 | errno = req->errorno; |
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114 | |
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115 | if (req->type == REQ_READ) |
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116 | SvCUR_set (req->data, req->dataoffset |
|
|
117 | + req->result > 0 ? req->result : 0); |
|
|
118 | |
|
|
119 | if (req->data) |
|
|
120 | SvREFCNT_dec (req->data); |
|
|
121 | |
|
|
122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
123 | { |
414 | { |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
415 | SV *rv = &PL_sv_undef; |
125 | PL_laststatval = req->result; |
|
|
126 | PL_statcache = *(req->statdata); |
|
|
127 | |
416 | |
128 | Safefree (req->statdata); |
417 | if (req->result >= 0) |
|
|
418 | { |
|
|
419 | int i; |
|
|
420 | char *buf = req->ptr2; |
|
|
421 | AV *av = newAV (); |
|
|
422 | |
|
|
423 | av_extend (av, req->result - 1); |
|
|
424 | |
|
|
425 | for (i = 0; i < req->result; ++i) |
|
|
426 | { |
|
|
427 | SV *sv = newSVpv (buf, 0); |
|
|
428 | |
|
|
429 | av_store (av, i, sv); |
|
|
430 | buf += SvCUR (sv) + 1; |
|
|
431 | } |
|
|
432 | |
|
|
433 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
434 | } |
|
|
435 | |
|
|
436 | PUSHs (rv); |
129 | } |
437 | } |
|
|
438 | break; |
130 | |
439 | |
131 | PUSHMARK (SP); |
440 | case REQ_OPEN: |
132 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
133 | |
|
|
134 | if (req->type == REQ_OPEN) |
|
|
135 | { |
441 | { |
136 | /* convert fd to fh */ |
442 | /* convert fd to fh */ |
137 | SV *fh; |
443 | SV *fh; |
138 | |
444 | |
|
|
445 | PUSHs (sv_2mortal (newSViv (req->result))); |
139 | PUTBACK; |
446 | PUTBACK; |
140 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
447 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
141 | SPAGAIN; |
448 | SPAGAIN; |
142 | |
449 | |
143 | fh = POPs; |
450 | fh = SvREFCNT_inc (POPs); |
144 | |
451 | |
145 | PUSHMARK (SP); |
452 | PUSHMARK (SP); |
146 | XPUSHs (fh); |
453 | XPUSHs (sv_2mortal (fh)); |
147 | } |
454 | } |
|
|
455 | break; |
148 | |
456 | |
149 | if (SvOK (req->callback)) |
457 | case REQ_GROUP: |
|
|
458 | req->int1 = 2; /* mark group as finished */ |
|
|
459 | |
|
|
460 | if (req->sv1) |
150 | { |
461 | { |
151 | PUTBACK; |
462 | int i; |
152 | call_sv (req->callback, G_VOID | G_EVAL); |
463 | AV *av = (AV *)req->sv1; |
153 | SPAGAIN; |
464 | |
|
|
465 | EXTEND (SP, AvFILL (av) + 1); |
|
|
466 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
467 | PUSHs (*av_fetch (av, i, 0)); |
154 | } |
468 | } |
|
|
469 | break; |
|
|
470 | |
|
|
471 | case REQ_NOP: |
|
|
472 | case REQ_BUSY: |
|
|
473 | break; |
|
|
474 | |
|
|
475 | case REQ_READLINK: |
|
|
476 | if (req->result > 0) |
155 | |
477 | { |
156 | if (req->callback) |
478 | SvCUR_set (req->sv1, req->result); |
157 | SvREFCNT_dec (req->callback); |
479 | *SvEND (req->sv1) = 0; |
|
|
480 | PUSHs (req->sv1); |
|
|
481 | } |
|
|
482 | break; |
158 | |
483 | |
159 | errno = errorno; |
484 | case REQ_STAT: |
160 | count++; |
485 | case REQ_LSTAT: |
|
|
486 | case REQ_FSTAT: |
|
|
487 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
488 | PL_laststatval = req->result; |
|
|
489 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
490 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
491 | break; |
|
|
492 | |
|
|
493 | case REQ_READ: |
|
|
494 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
495 | *SvEND (req->sv1) = 0; |
|
|
496 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
497 | break; |
|
|
498 | |
|
|
499 | default: |
|
|
500 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
501 | break; |
161 | } |
502 | } |
162 | |
503 | |
163 | prv = req; |
504 | errno = req->errorno; |
164 | req = req->next; |
|
|
165 | Safefree (prv); |
|
|
166 | |
505 | |
167 | /* TODO: croak on errors? */ |
506 | PUTBACK; |
|
|
507 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
508 | SPAGAIN; |
|
|
509 | |
|
|
510 | FREETMPS; |
|
|
511 | LEAVE; |
168 | } |
512 | } |
169 | |
513 | |
170 | return count; |
514 | if (req->grp) |
|
|
515 | { |
|
|
516 | aio_req grp = req->grp; |
|
|
517 | |
|
|
518 | /* unlink request */ |
|
|
519 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
520 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
521 | |
|
|
522 | if (grp->grp_first == req) |
|
|
523 | grp->grp_first = req->grp_next; |
|
|
524 | |
|
|
525 | aio_grp_dec (grp); |
|
|
526 | } |
|
|
527 | |
|
|
528 | if (SvTRUE (ERRSV)) |
|
|
529 | { |
|
|
530 | req_free (req); |
|
|
531 | croak (0); |
|
|
532 | } |
|
|
533 | } |
|
|
534 | |
|
|
535 | static void req_free (aio_req req) |
|
|
536 | { |
|
|
537 | if (req->self) |
|
|
538 | { |
|
|
539 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
540 | SvREFCNT_dec (req->self); |
|
|
541 | } |
|
|
542 | |
|
|
543 | SvREFCNT_dec (req->fh); |
|
|
544 | SvREFCNT_dec (req->sv1); |
|
|
545 | SvREFCNT_dec (req->sv2); |
|
|
546 | SvREFCNT_dec (req->callback); |
|
|
547 | |
|
|
548 | if (req->flags & FLAG_PTR2_FREE) |
|
|
549 | free (req->ptr2); |
|
|
550 | |
|
|
551 | Safefree (req); |
|
|
552 | } |
|
|
553 | |
|
|
554 | static void req_cancel_subs (aio_req grp) |
|
|
555 | { |
|
|
556 | aio_req sub; |
|
|
557 | |
|
|
558 | if (grp->type != REQ_GROUP) |
|
|
559 | return; |
|
|
560 | |
|
|
561 | SvREFCNT_dec (grp->sv2); |
|
|
562 | grp->sv2 = 0; |
|
|
563 | |
|
|
564 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
565 | req_cancel (sub); |
|
|
566 | } |
|
|
567 | |
|
|
568 | static void req_cancel (aio_req req) |
|
|
569 | { |
|
|
570 | req->flags |= FLAG_CANCELLED; |
|
|
571 | |
|
|
572 | req_cancel_subs (req); |
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); |
|
|
590 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
591 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
592 | #endif |
185 | |
593 | |
186 | sigfillset (&fullsigset); |
594 | sigfillset (&fullsigset); |
|
|
595 | |
|
|
596 | LOCK (wrklock); |
187 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
597 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
188 | |
598 | |
189 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
599 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
190 | started++; |
|
|
191 | |
|
|
192 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
193 | } |
|
|
194 | |
|
|
195 | static void |
|
|
196 | send_req (aio_req req) |
|
|
197 | { |
|
|
198 | nreqs++; |
|
|
199 | |
|
|
200 | pthread_mutex_lock (&reqlock); |
|
|
201 | |
|
|
202 | req->next = 0; |
|
|
203 | |
|
|
204 | if (reqe) |
|
|
205 | { |
600 | { |
206 | reqe->next = req; |
601 | wrk->prev = &wrk_first; |
207 | reqe = req; |
602 | wrk->next = wrk_first.next; |
|
|
603 | wrk_first.next->prev = wrk; |
|
|
604 | wrk_first.next = wrk; |
|
|
605 | ++started; |
208 | } |
606 | } |
209 | else |
607 | else |
210 | reqe = reqs = req; |
608 | free (wrk); |
211 | |
609 | |
|
|
610 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
611 | UNLOCK (wrklock); |
|
|
612 | } |
|
|
613 | |
|
|
614 | static void maybe_start_thread () |
|
|
615 | { |
|
|
616 | if (get_nthreads () >= wanted) |
|
|
617 | return; |
|
|
618 | |
|
|
619 | /* todo: maybe use idle here, but might be less exact */ |
|
|
620 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
621 | return; |
|
|
622 | |
|
|
623 | start_thread (); |
|
|
624 | } |
|
|
625 | |
|
|
626 | static void req_send (aio_req req) |
|
|
627 | { |
|
|
628 | ++nreqs; |
|
|
629 | |
|
|
630 | LOCK (reqlock); |
|
|
631 | ++nready; |
|
|
632 | reqq_push (&req_queue, req); |
212 | pthread_cond_signal (&reqwait); |
633 | pthread_cond_signal (&reqwait); |
213 | pthread_mutex_unlock (&reqlock); |
634 | UNLOCK (reqlock); |
214 | |
635 | |
215 | while (nreqs > max_outstanding) |
636 | maybe_start_thread (); |
|
|
637 | } |
|
|
638 | |
|
|
639 | static void end_thread (void) |
|
|
640 | { |
|
|
641 | aio_req req; |
|
|
642 | |
|
|
643 | Newz (0, req, 1, aio_cb); |
|
|
644 | |
|
|
645 | req->type = REQ_QUIT; |
|
|
646 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
647 | |
|
|
648 | LOCK (reqlock); |
|
|
649 | reqq_push (&req_queue, req); |
|
|
650 | pthread_cond_signal (&reqwait); |
|
|
651 | UNLOCK (reqlock); |
|
|
652 | |
|
|
653 | LOCK (wrklock); |
|
|
654 | --started; |
|
|
655 | UNLOCK (wrklock); |
|
|
656 | } |
|
|
657 | |
|
|
658 | static void set_max_idle (int nthreads) |
|
|
659 | { |
|
|
660 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
661 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
662 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
|
|
663 | } |
|
|
664 | |
|
|
665 | static void min_parallel (int nthreads) |
|
|
666 | { |
|
|
667 | if (wanted < nthreads) |
|
|
668 | wanted = nthreads; |
|
|
669 | } |
|
|
670 | |
|
|
671 | static void max_parallel (int nthreads) |
|
|
672 | { |
|
|
673 | if (wanted > nthreads) |
|
|
674 | wanted = nthreads; |
|
|
675 | |
|
|
676 | while (started > wanted) |
|
|
677 | end_thread (); |
|
|
678 | } |
|
|
679 | |
|
|
680 | static void poll_wait () |
|
|
681 | { |
|
|
682 | fd_set rfd; |
|
|
683 | |
|
|
684 | while (nreqs) |
216 | { |
685 | { |
|
|
686 | int size; |
|
|
687 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
688 | size = res_queue.size; |
|
|
689 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
690 | |
|
|
691 | if (size) |
|
|
692 | return; |
|
|
693 | |
|
|
694 | maybe_start_thread (); |
|
|
695 | |
|
|
696 | FD_ZERO(&rfd); |
|
|
697 | FD_SET(respipe [0], &rfd); |
|
|
698 | |
|
|
699 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
700 | } |
|
|
701 | } |
|
|
702 | |
|
|
703 | static int poll_cb () |
|
|
704 | { |
|
|
705 | dSP; |
|
|
706 | int count = 0; |
|
|
707 | int maxreqs = max_poll_reqs; |
|
|
708 | int do_croak = 0; |
|
|
709 | struct timeval tv_start, tv_now; |
|
|
710 | aio_req req; |
|
|
711 | |
|
|
712 | if (max_poll_time) |
|
|
713 | gettimeofday (&tv_start, 0); |
|
|
714 | |
|
|
715 | for (;;) |
|
|
716 | { |
|
|
717 | for (;;) |
|
|
718 | { |
|
|
719 | maybe_start_thread (); |
|
|
720 | |
|
|
721 | LOCK (reslock); |
|
|
722 | req = reqq_shift (&res_queue); |
|
|
723 | |
|
|
724 | if (req) |
|
|
725 | { |
|
|
726 | --npending; |
|
|
727 | |
|
|
728 | if (!res_queue.size) |
|
|
729 | { |
|
|
730 | /* read any signals sent by the worker threads */ |
|
|
731 | char buf [32]; |
|
|
732 | while (read (respipe [0], buf, 32) == 32) |
|
|
733 | ; |
|
|
734 | } |
|
|
735 | } |
|
|
736 | |
|
|
737 | UNLOCK (reslock); |
|
|
738 | |
|
|
739 | if (!req) |
|
|
740 | break; |
|
|
741 | |
|
|
742 | --nreqs; |
|
|
743 | |
|
|
744 | if (req->type == REQ_GROUP && req->size) |
|
|
745 | { |
|
|
746 | req->int1 = 1; /* mark request as delayed */ |
|
|
747 | continue; |
|
|
748 | } |
|
|
749 | else |
|
|
750 | { |
|
|
751 | req_invoke (req); |
|
|
752 | |
|
|
753 | count++; |
|
|
754 | } |
|
|
755 | |
|
|
756 | req_free (req); |
|
|
757 | |
|
|
758 | if (maxreqs && !--maxreqs) |
|
|
759 | break; |
|
|
760 | |
|
|
761 | if (max_poll_time) |
|
|
762 | { |
|
|
763 | gettimeofday (&tv_now, 0); |
|
|
764 | |
|
|
765 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
766 | break; |
|
|
767 | } |
|
|
768 | } |
|
|
769 | |
|
|
770 | if (nreqs <= max_outstanding) |
|
|
771 | break; |
|
|
772 | |
217 | poll_wait (); |
773 | poll_wait (); |
218 | poll_cb (); |
774 | |
|
|
775 | ++maxreqs; |
219 | } |
776 | } |
220 | } |
|
|
221 | |
777 | |
222 | static void |
778 | return count; |
223 | end_thread (void) |
|
|
224 | { |
|
|
225 | aio_req req; |
|
|
226 | New (0, req, 1, aio_cb); |
|
|
227 | req->type = REQ_QUIT; |
|
|
228 | |
|
|
229 | send_req (req); |
|
|
230 | } |
779 | } |
231 | |
780 | |
232 | static void |
781 | static void create_pipe () |
233 | read_write (int dowrite, int fd, off_t offset, size_t length, |
|
|
234 | SV *data, STRLEN dataoffset, SV *callback) |
|
|
235 | { |
782 | { |
236 | aio_req req; |
783 | if (pipe (respipe)) |
237 | STRLEN svlen; |
784 | croak ("unable to initialize result pipe"); |
238 | char *svptr = SvPV (data, svlen); |
|
|
239 | |
785 | |
240 | SvUPGRADE (data, SVt_PV); |
786 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
241 | SvPOK_on (data); |
787 | croak ("cannot set result pipe to nonblocking mode"); |
242 | |
788 | |
243 | if (dataoffset < 0) |
789 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
244 | dataoffset += svlen; |
790 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
791 | } |
245 | |
792 | |
246 | if (dataoffset < 0 || dataoffset > svlen) |
793 | /*****************************************************************************/ |
247 | croak ("data offset outside of string"); |
794 | /* work around various missing functions */ |
248 | |
795 | |
249 | if (dowrite) |
796 | #if !HAVE_PREADWRITE |
|
|
797 | # define pread aio_pread |
|
|
798 | # define pwrite aio_pwrite |
|
|
799 | |
|
|
800 | /* |
|
|
801 | * make our pread/pwrite safe against themselves, but not against |
|
|
802 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
803 | * but that's your problem, not mine. |
|
|
804 | */ |
|
|
805 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
|
|
806 | |
|
|
807 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
|
|
808 | { |
|
|
809 | ssize_t res; |
|
|
810 | off_t ooffset; |
|
|
811 | |
|
|
812 | LOCK (preadwritelock); |
|
|
813 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
814 | lseek (fd, offset, SEEK_SET); |
|
|
815 | res = read (fd, buf, count); |
|
|
816 | lseek (fd, ooffset, SEEK_SET); |
|
|
817 | UNLOCK (preadwritelock); |
|
|
818 | |
|
|
819 | return res; |
|
|
820 | } |
|
|
821 | |
|
|
822 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
823 | { |
|
|
824 | ssize_t res; |
|
|
825 | off_t ooffset; |
|
|
826 | |
|
|
827 | LOCK (preadwritelock); |
|
|
828 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
829 | lseek (fd, offset, SEEK_SET); |
|
|
830 | res = write (fd, buf, count); |
|
|
831 | lseek (fd, offset, SEEK_SET); |
|
|
832 | UNLOCK (preadwritelock); |
|
|
833 | |
|
|
834 | return res; |
|
|
835 | } |
|
|
836 | #endif |
|
|
837 | |
|
|
838 | #if !HAVE_FDATASYNC |
|
|
839 | # define fdatasync fsync |
|
|
840 | #endif |
|
|
841 | |
|
|
842 | #if !HAVE_READAHEAD |
|
|
843 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
|
|
844 | |
|
|
845 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
|
|
846 | { |
|
|
847 | dBUF; |
|
|
848 | |
|
|
849 | while (count > 0) |
250 | { |
850 | { |
251 | /* write: check length and adjust. */ |
851 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
252 | if (length < 0 || length + dataoffset > svlen) |
852 | |
253 | length = svlen - dataoffset; |
853 | pread (fd, aio_buf, len, offset); |
|
|
854 | offset += len; |
|
|
855 | count -= len; |
|
|
856 | } |
|
|
857 | |
|
|
858 | errno = 0; |
|
|
859 | } |
|
|
860 | |
|
|
861 | #endif |
|
|
862 | |
|
|
863 | #if !HAVE_READDIR_R |
|
|
864 | # define readdir_r aio_readdir_r |
|
|
865 | |
|
|
866 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
867 | |
|
|
868 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
869 | { |
|
|
870 | struct dirent *e; |
|
|
871 | int errorno; |
|
|
872 | |
|
|
873 | LOCK (readdirlock); |
|
|
874 | |
|
|
875 | e = readdir (dirp); |
|
|
876 | errorno = errno; |
|
|
877 | |
|
|
878 | if (e) |
|
|
879 | { |
|
|
880 | *res = ent; |
|
|
881 | strcpy (ent->d_name, e->d_name); |
254 | } |
882 | } |
255 | else |
883 | else |
|
|
884 | *res = 0; |
|
|
885 | |
|
|
886 | UNLOCK (readdirlock); |
|
|
887 | |
|
|
888 | errno = errorno; |
|
|
889 | return e ? 0 : -1; |
|
|
890 | } |
|
|
891 | #endif |
|
|
892 | |
|
|
893 | /* sendfile always needs emulation */ |
|
|
894 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
895 | { |
|
|
896 | ssize_t res; |
|
|
897 | |
|
|
898 | if (!count) |
|
|
899 | return 0; |
|
|
900 | |
|
|
901 | #if HAVE_SENDFILE |
|
|
902 | # if __linux |
|
|
903 | res = sendfile (ofd, ifd, &offset, count); |
|
|
904 | |
|
|
905 | # elif __freebsd |
|
|
906 | /* |
|
|
907 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
908 | * wasted on making it similar to other I/O functions. |
|
|
909 | */ |
|
|
910 | { |
|
|
911 | off_t sbytes; |
|
|
912 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
913 | |
|
|
914 | if (res < 0 && sbytes) |
|
|
915 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
916 | res = sbytes; |
|
|
917 | } |
|
|
918 | |
|
|
919 | # elif __hpux |
|
|
920 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
921 | |
|
|
922 | # elif __solaris |
|
|
923 | { |
|
|
924 | struct sendfilevec vec; |
|
|
925 | size_t sbytes; |
|
|
926 | |
|
|
927 | vec.sfv_fd = ifd; |
|
|
928 | vec.sfv_flag = 0; |
|
|
929 | vec.sfv_off = offset; |
|
|
930 | vec.sfv_len = count; |
|
|
931 | |
|
|
932 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
933 | |
|
|
934 | if (res < 0 && sbytes) |
|
|
935 | res = sbytes; |
|
|
936 | } |
|
|
937 | |
|
|
938 | # endif |
|
|
939 | #else |
|
|
940 | res = -1; |
|
|
941 | errno = ENOSYS; |
|
|
942 | #endif |
|
|
943 | |
|
|
944 | if (res < 0 |
|
|
945 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
946 | #if __solaris |
|
|
947 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
948 | #endif |
|
|
949 | ) |
|
|
950 | ) |
256 | { |
951 | { |
257 | /* read: grow scalar as necessary */ |
952 | /* emulate sendfile. this is a major pain in the ass */ |
258 | svptr = SvGROW (data, length + dataoffset); |
953 | dBUF; |
|
|
954 | |
|
|
955 | res = 0; |
|
|
956 | |
|
|
957 | while (count) |
|
|
958 | { |
|
|
959 | ssize_t cnt; |
|
|
960 | |
|
|
961 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
962 | |
|
|
963 | if (cnt <= 0) |
|
|
964 | { |
|
|
965 | if (cnt && !res) res = -1; |
|
|
966 | break; |
|
|
967 | } |
|
|
968 | |
|
|
969 | cnt = write (ofd, aio_buf, cnt); |
|
|
970 | |
|
|
971 | if (cnt <= 0) |
|
|
972 | { |
|
|
973 | if (cnt && !res) res = -1; |
|
|
974 | break; |
|
|
975 | } |
|
|
976 | |
|
|
977 | offset += cnt; |
|
|
978 | res += cnt; |
|
|
979 | count -= cnt; |
|
|
980 | } |
259 | } |
981 | } |
260 | |
982 | |
261 | if (length < 0) |
983 | return res; |
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 | } |
984 | } |
279 | |
985 | |
280 | static void * |
986 | /* read a full directory */ |
|
|
987 | static void scandir_ (aio_req req, worker *self) |
|
|
988 | { |
|
|
989 | DIR *dirp; |
|
|
990 | union |
|
|
991 | { |
|
|
992 | struct dirent d; |
|
|
993 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
994 | } *u; |
|
|
995 | struct dirent *entp; |
|
|
996 | char *name, *names; |
|
|
997 | int memlen = 4096; |
|
|
998 | int memofs = 0; |
|
|
999 | int res = 0; |
|
|
1000 | int errorno; |
|
|
1001 | |
|
|
1002 | LOCK (wrklock); |
|
|
1003 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1004 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1005 | req->flags |= FLAG_PTR2_FREE; |
|
|
1006 | req->ptr2 = names = malloc (memlen); |
|
|
1007 | UNLOCK (wrklock); |
|
|
1008 | |
|
|
1009 | if (dirp && u && names) |
|
|
1010 | for (;;) |
|
|
1011 | { |
|
|
1012 | errno = 0; |
|
|
1013 | readdir_r (dirp, &u->d, &entp); |
|
|
1014 | |
|
|
1015 | if (!entp) |
|
|
1016 | break; |
|
|
1017 | |
|
|
1018 | name = entp->d_name; |
|
|
1019 | |
|
|
1020 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1021 | { |
|
|
1022 | int len = strlen (name) + 1; |
|
|
1023 | |
|
|
1024 | res++; |
|
|
1025 | |
|
|
1026 | while (memofs + len > memlen) |
|
|
1027 | { |
|
|
1028 | memlen *= 2; |
|
|
1029 | LOCK (wrklock); |
|
|
1030 | req->ptr2 = names = realloc (names, memlen); |
|
|
1031 | UNLOCK (wrklock); |
|
|
1032 | |
|
|
1033 | if (!names) |
|
|
1034 | break; |
|
|
1035 | } |
|
|
1036 | |
|
|
1037 | memcpy (names + memofs, name, len); |
|
|
1038 | memofs += len; |
|
|
1039 | } |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | if (errno) |
|
|
1043 | res = -1; |
|
|
1044 | |
|
|
1045 | req->result = res; |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | /*****************************************************************************/ |
|
|
1049 | |
281 | aio_proc (void *thr_arg) |
1050 | static void *aio_proc (void *thr_arg) |
282 | { |
1051 | { |
283 | aio_req req; |
1052 | aio_req req; |
284 | int type; |
1053 | struct timespec ts; |
|
|
1054 | worker *self = (worker *)thr_arg; |
285 | |
1055 | |
286 | do |
1056 | /* try to distribute timeouts somewhat evenly */ |
|
|
1057 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1058 | * (1000000000UL / 1024UL); |
|
|
1059 | |
|
|
1060 | for (;;) |
287 | { |
1061 | { |
288 | pthread_mutex_lock (&reqlock); |
1062 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1063 | |
|
|
1064 | LOCK (reqlock); |
289 | |
1065 | |
290 | for (;;) |
1066 | for (;;) |
291 | { |
1067 | { |
292 | req = reqs; |
1068 | self->req = req = reqq_shift (&req_queue); |
293 | |
|
|
294 | if (reqs) |
|
|
295 | { |
|
|
296 | reqs = reqs->next; |
|
|
297 | if (!reqs) reqe = 0; |
|
|
298 | } |
|
|
299 | |
1069 | |
300 | if (req) |
1070 | if (req) |
301 | break; |
1071 | break; |
302 | |
1072 | |
|
|
1073 | ++idle; |
|
|
1074 | |
|
|
1075 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1076 | == ETIMEDOUT) |
|
|
1077 | { |
|
|
1078 | if (idle > max_idle) |
|
|
1079 | { |
|
|
1080 | --idle; |
|
|
1081 | UNLOCK (reqlock); |
|
|
1082 | LOCK (wrklock); |
|
|
1083 | --started; |
|
|
1084 | UNLOCK (wrklock); |
|
|
1085 | goto quit; |
|
|
1086 | } |
|
|
1087 | |
|
|
1088 | /* we are allowed to idle, so do so without any timeout */ |
303 | pthread_cond_wait (&reqwait, &reqlock); |
1089 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1090 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | --idle; |
304 | } |
1094 | } |
305 | |
1095 | |
306 | pthread_mutex_unlock (&reqlock); |
1096 | --nready; |
|
|
1097 | |
|
|
1098 | UNLOCK (reqlock); |
307 | |
1099 | |
308 | errno = 0; /* strictly unnecessary */ |
1100 | errno = 0; /* strictly unnecessary */ |
309 | |
1101 | |
310 | type = req->type; |
1102 | if (!(req->flags & FLAG_CANCELLED)) |
311 | |
|
|
312 | switch (type) |
1103 | switch (req->type) |
313 | { |
1104 | { |
314 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1105 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
315 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1106 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
316 | #if SYS_readahead |
1107 | |
317 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1108 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
318 | #else |
1109 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
319 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
1110 | |
|
|
1111 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1112 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
|
|
1113 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
|
|
1114 | |
|
|
1115 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
|
|
1116 | case REQ_CLOSE: req->result = close (req->int1); break; |
|
|
1117 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
|
|
1118 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1119 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1120 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
|
|
1121 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1122 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1123 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
|
|
1124 | |
|
|
1125 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
|
|
1126 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1127 | case REQ_READDIR: scandir_ (req, self); break; |
|
|
1128 | |
|
|
1129 | case REQ_BUSY: |
|
|
1130 | { |
|
|
1131 | struct timeval tv; |
|
|
1132 | |
|
|
1133 | tv.tv_sec = req->int1; |
|
|
1134 | tv.tv_usec = req->int2; |
|
|
1135 | |
|
|
1136 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1137 | } |
|
|
1138 | |
|
|
1139 | case REQ_GROUP: |
|
|
1140 | case REQ_NOP: |
|
|
1141 | break; |
|
|
1142 | |
|
|
1143 | case REQ_QUIT: |
|
|
1144 | goto quit; |
|
|
1145 | |
|
|
1146 | default: |
|
|
1147 | req->result = ENOSYS; |
|
|
1148 | break; |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | req->errorno = errno; |
|
|
1152 | |
|
|
1153 | LOCK (reslock); |
|
|
1154 | |
|
|
1155 | ++npending; |
|
|
1156 | |
|
|
1157 | if (!reqq_push (&res_queue, req)) |
|
|
1158 | /* write a dummy byte to the pipe so fh becomes ready */ |
|
|
1159 | write (respipe [1], &respipe, 1); |
|
|
1160 | |
|
|
1161 | self->req = 0; |
|
|
1162 | worker_clear (self); |
|
|
1163 | |
|
|
1164 | UNLOCK (reslock); |
|
|
1165 | } |
|
|
1166 | |
|
|
1167 | quit: |
|
|
1168 | LOCK (wrklock); |
|
|
1169 | worker_free (self); |
|
|
1170 | UNLOCK (wrklock); |
|
|
1171 | |
|
|
1172 | return 0; |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | /*****************************************************************************/ |
|
|
1176 | |
|
|
1177 | static void atfork_prepare (void) |
|
|
1178 | { |
|
|
1179 | LOCK (wrklock); |
|
|
1180 | LOCK (reqlock); |
|
|
1181 | LOCK (reslock); |
|
|
1182 | #if !HAVE_PREADWRITE |
|
|
1183 | LOCK (preadwritelock); |
320 | #endif |
1184 | #endif |
|
|
1185 | #if !HAVE_READDIR_R |
|
|
1186 | LOCK (readdirlock); |
|
|
1187 | #endif |
|
|
1188 | } |
321 | |
1189 | |
322 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1190 | static void atfork_parent (void) |
323 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1191 | { |
324 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1192 | #if !HAVE_READDIR_R |
|
|
1193 | UNLOCK (readdirlock); |
|
|
1194 | #endif |
|
|
1195 | #if !HAVE_PREADWRITE |
|
|
1196 | UNLOCK (preadwritelock); |
|
|
1197 | #endif |
|
|
1198 | UNLOCK (reslock); |
|
|
1199 | UNLOCK (reqlock); |
|
|
1200 | UNLOCK (wrklock); |
|
|
1201 | } |
325 | |
1202 | |
326 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1203 | static void atfork_child (void) |
327 | case REQ_CLOSE: req->result = close (req->fd); break; |
1204 | { |
328 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1205 | aio_req prv; |
329 | |
1206 | |
330 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1207 | while (prv = reqq_shift (&req_queue)) |
331 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1208 | req_free (prv); |
332 | |
1209 | |
333 | case REQ_QUIT: |
1210 | while (prv = reqq_shift (&res_queue)) |
334 | break; |
1211 | req_free (prv); |
335 | |
1212 | |
336 | default: |
1213 | while (wrk_first.next != &wrk_first) |
337 | req->result = ENOSYS; |
1214 | { |
338 | break; |
1215 | worker *wrk = wrk_first.next; |
339 | } |
|
|
340 | |
1216 | |
341 | req->errorno = errno; |
|
|
342 | |
|
|
343 | pthread_mutex_lock (&reslock); |
|
|
344 | |
|
|
345 | req->next = 0; |
|
|
346 | |
|
|
347 | if (rese) |
1217 | if (wrk->req) |
348 | { |
1218 | req_free (wrk->req); |
349 | rese->next = req; |
|
|
350 | rese = req; |
|
|
351 | } |
|
|
352 | else |
|
|
353 | { |
|
|
354 | rese = ress = req; |
|
|
355 | |
1219 | |
356 | /* write a dummy byte to the pipe so fh becomes ready */ |
1220 | worker_clear (wrk); |
357 | write (respipe [1], &respipe, 1); |
1221 | worker_free (wrk); |
358 | } |
|
|
359 | |
|
|
360 | pthread_mutex_unlock (&reslock); |
|
|
361 | } |
1222 | } |
362 | while (type != REQ_QUIT); |
|
|
363 | |
1223 | |
364 | return 0; |
1224 | started = 0; |
365 | } |
1225 | idle = 0; |
|
|
1226 | nreqs = 0; |
|
|
1227 | nready = 0; |
|
|
1228 | npending = 0; |
366 | |
1229 | |
|
|
1230 | close (respipe [0]); |
|
|
1231 | close (respipe [1]); |
|
|
1232 | create_pipe (); |
|
|
1233 | |
|
|
1234 | atfork_parent (); |
|
|
1235 | } |
|
|
1236 | |
|
|
1237 | #define dREQ \ |
|
|
1238 | aio_req req; \ |
|
|
1239 | int req_pri = next_pri; \ |
|
|
1240 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1241 | \ |
|
|
1242 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1243 | croak ("callback must be undef or of reference type"); \ |
|
|
1244 | \ |
|
|
1245 | Newz (0, req, 1, aio_cb); \ |
|
|
1246 | if (!req) \ |
|
|
1247 | croak ("out of memory during aio_req allocation"); \ |
|
|
1248 | \ |
|
|
1249 | req->callback = newSVsv (callback); \ |
|
|
1250 | req->pri = req_pri |
|
|
1251 | |
|
|
1252 | #define REQ_SEND \ |
|
|
1253 | req_send (req); \ |
|
|
1254 | \ |
|
|
1255 | if (GIMME_V != G_VOID) \ |
|
|
1256 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1257 | |
367 | MODULE = IO::AIO PACKAGE = IO::AIO |
1258 | MODULE = IO::AIO PACKAGE = IO::AIO |
368 | |
1259 | |
369 | PROTOTYPES: ENABLE |
1260 | PROTOTYPES: ENABLE |
370 | |
1261 | |
371 | BOOT: |
1262 | BOOT: |
372 | { |
1263 | { |
373 | if (pipe (respipe)) |
1264 | HV *stash = gv_stashpv ("IO::AIO", 1); |
374 | croak ("unable to initialize result pipe"); |
|
|
375 | |
1265 | |
376 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
1266 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
377 | croak ("cannot set result pipe to nonblocking mode"); |
1267 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1268 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1269 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1270 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1271 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
378 | |
1272 | |
379 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
1273 | create_pipe (); |
380 | croak ("cannot set result pipe to nonblocking mode"); |
1274 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
381 | } |
1275 | } |
382 | |
1276 | |
383 | void |
1277 | void |
384 | min_parallel(nthreads) |
1278 | max_poll_reqs (int nreqs) |
385 | int nthreads |
|
|
386 | PROTOTYPE: $ |
1279 | PROTOTYPE: $ |
387 | CODE: |
1280 | CODE: |
388 | while (nthreads > started) |
1281 | max_poll_reqs = nreqs; |
389 | start_thread (); |
|
|
390 | |
1282 | |
391 | void |
1283 | void |
392 | max_parallel(nthreads) |
1284 | max_poll_time (double nseconds) |
393 | int nthreads |
|
|
394 | PROTOTYPE: $ |
1285 | PROTOTYPE: $ |
395 | CODE: |
1286 | CODE: |
396 | { |
1287 | max_poll_time = nseconds * AIO_TICKS; |
397 | int cur = started; |
|
|
398 | while (cur > nthreads) |
|
|
399 | { |
|
|
400 | end_thread (); |
|
|
401 | cur--; |
|
|
402 | } |
|
|
403 | |
1288 | |
404 | while (started > nthreads) |
1289 | void |
405 | { |
1290 | min_parallel (int nthreads) |
406 | poll_wait (); |
1291 | PROTOTYPE: $ |
407 | poll_cb (); |
1292 | |
408 | } |
1293 | void |
409 | } |
1294 | max_parallel (int nthreads) |
|
|
1295 | PROTOTYPE: $ |
|
|
1296 | |
|
|
1297 | void |
|
|
1298 | max_idle (int nthreads) |
|
|
1299 | PROTOTYPE: $ |
|
|
1300 | CODE: |
|
|
1301 | set_max_idle (nthreads); |
410 | |
1302 | |
411 | int |
1303 | int |
412 | max_outstanding(nreqs) |
1304 | max_outstanding (int maxreqs) |
413 | int nreqs |
1305 | PROTOTYPE: $ |
414 | PROTOTYPE: $ |
|
|
415 | CODE: |
1306 | CODE: |
416 | RETVAL = max_outstanding; |
1307 | RETVAL = max_outstanding; |
417 | max_outstanding = nreqs; |
1308 | max_outstanding = maxreqs; |
|
|
1309 | OUTPUT: |
|
|
1310 | RETVAL |
418 | |
1311 | |
419 | void |
1312 | void |
420 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1313 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
421 | SV * pathname |
1314 | SV * pathname |
422 | int flags |
1315 | int flags |
423 | int mode |
1316 | int mode |
424 | SV * callback |
1317 | SV * callback |
425 | PROTOTYPE: $$$;$ |
1318 | PROTOTYPE: $$$;$ |
426 | CODE: |
1319 | PPCODE: |
427 | { |
1320 | { |
428 | aio_req req; |
1321 | dREQ; |
429 | |
|
|
430 | Newz (0, req, 1, aio_cb); |
|
|
431 | |
|
|
432 | if (!req) |
|
|
433 | croak ("out of memory during aio_req allocation"); |
|
|
434 | |
1322 | |
435 | req->type = REQ_OPEN; |
1323 | req->type = REQ_OPEN; |
436 | req->data = newSVsv (pathname); |
1324 | req->sv1 = newSVsv (pathname); |
437 | req->dataptr = SvPV_nolen (req->data); |
1325 | req->ptr1 = SvPVbyte_nolen (pathname); |
438 | req->fd = flags; |
1326 | req->int1 = flags; |
439 | req->mode = mode; |
1327 | req->mode = mode; |
440 | req->callback = SvREFCNT_inc (callback); |
|
|
441 | |
1328 | |
442 | send_req (req); |
1329 | REQ_SEND; |
443 | } |
1330 | } |
444 | |
1331 | |
445 | void |
1332 | void |
446 | aio_close(fh,callback=&PL_sv_undef) |
1333 | aio_close (fh,callback=&PL_sv_undef) |
447 | InputStream fh |
1334 | SV * fh |
448 | SV * callback |
1335 | SV * callback |
449 | PROTOTYPE: $;$ |
1336 | PROTOTYPE: $;$ |
450 | ALIAS: |
1337 | ALIAS: |
451 | aio_close = REQ_CLOSE |
1338 | aio_close = REQ_CLOSE |
452 | aio_fsync = REQ_FSYNC |
1339 | aio_fsync = REQ_FSYNC |
453 | aio_fdatasync = REQ_FDATASYNC |
1340 | aio_fdatasync = REQ_FDATASYNC |
454 | CODE: |
1341 | PPCODE: |
455 | { |
1342 | { |
456 | aio_req req; |
1343 | dREQ; |
457 | |
|
|
458 | Newz (0, req, 1, aio_cb); |
|
|
459 | |
|
|
460 | if (!req) |
|
|
461 | croak ("out of memory during aio_req allocation"); |
|
|
462 | |
1344 | |
463 | req->type = ix; |
1345 | req->type = ix; |
|
|
1346 | req->fh = newSVsv (fh); |
464 | req->fd = PerlIO_fileno (fh); |
1347 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
465 | req->callback = SvREFCNT_inc (callback); |
|
|
466 | |
1348 | |
467 | send_req (req); |
1349 | REQ_SEND (req); |
468 | } |
1350 | } |
469 | |
1351 | |
470 | void |
1352 | void |
471 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1353 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
472 | InputStream fh |
1354 | SV * fh |
473 | UV offset |
1355 | UV offset |
474 | IV length |
1356 | UV length |
475 | SV * data |
1357 | SV * data |
476 | IV dataoffset |
1358 | UV dataoffset |
477 | SV * callback |
1359 | SV * callback |
|
|
1360 | ALIAS: |
|
|
1361 | aio_read = REQ_READ |
|
|
1362 | aio_write = REQ_WRITE |
478 | PROTOTYPE: $$$$$;$ |
1363 | PROTOTYPE: $$$$$;$ |
479 | CODE: |
1364 | PPCODE: |
480 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
481 | |
|
|
482 | void |
|
|
483 | aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
|
|
484 | OutputStream fh |
|
|
485 | UV offset |
|
|
486 | IV length |
|
|
487 | SV * data |
|
|
488 | IV dataoffset |
|
|
489 | SV * callback |
|
|
490 | PROTOTYPE: $$$$$;$ |
|
|
491 | CODE: |
|
|
492 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
493 | |
|
|
494 | void |
|
|
495 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
|
|
496 | InputStream fh |
|
|
497 | UV offset |
|
|
498 | IV length |
|
|
499 | SV * callback |
|
|
500 | PROTOTYPE: $$$;$ |
|
|
501 | CODE: |
|
|
502 | { |
1365 | { |
503 | aio_req req; |
1366 | STRLEN svlen; |
|
|
1367 | char *svptr = SvPVbyte (data, svlen); |
|
|
1368 | |
|
|
1369 | SvUPGRADE (data, SVt_PV); |
|
|
1370 | SvPOK_on (data); |
|
|
1371 | |
|
|
1372 | if (dataoffset < 0) |
|
|
1373 | dataoffset += svlen; |
|
|
1374 | |
|
|
1375 | if (dataoffset < 0 || dataoffset > svlen) |
|
|
1376 | croak ("data offset outside of string"); |
|
|
1377 | |
|
|
1378 | if (ix == REQ_WRITE) |
|
|
1379 | { |
|
|
1380 | /* write: check length and adjust. */ |
|
|
1381 | if (length < 0 || length + dataoffset > svlen) |
|
|
1382 | length = svlen - dataoffset; |
|
|
1383 | } |
|
|
1384 | else |
|
|
1385 | { |
|
|
1386 | /* read: grow scalar as necessary */ |
|
|
1387 | svptr = SvGROW (data, length + dataoffset); |
|
|
1388 | } |
504 | |
1389 | |
505 | if (length < 0) |
1390 | if (length < 0) |
506 | croak ("length must not be negative"); |
1391 | croak ("length must not be negative"); |
507 | |
1392 | |
508 | Newz (0, req, 1, aio_cb); |
1393 | { |
|
|
1394 | dREQ; |
509 | |
1395 | |
510 | if (!req) |
1396 | req->type = ix; |
511 | croak ("out of memory during aio_req allocation"); |
1397 | req->fh = newSVsv (fh); |
|
|
1398 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
|
|
1399 | : IoOFP (sv_2io (fh))); |
|
|
1400 | req->offs = offset; |
|
|
1401 | req->size = length; |
|
|
1402 | req->sv1 = SvREFCNT_inc (data); |
|
|
1403 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1404 | req->stroffset = dataoffset; |
|
|
1405 | |
|
|
1406 | if (!SvREADONLY (data)) |
|
|
1407 | { |
|
|
1408 | SvREADONLY_on (data); |
|
|
1409 | req->flags |= FLAG_SV1_RO_OFF; |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | REQ_SEND; |
|
|
1413 | } |
|
|
1414 | } |
|
|
1415 | |
|
|
1416 | void |
|
|
1417 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1418 | SV * path |
|
|
1419 | SV * callback |
|
|
1420 | PROTOTYPE: $$;$ |
|
|
1421 | PPCODE: |
|
|
1422 | { |
|
|
1423 | SV *data; |
|
|
1424 | dREQ; |
|
|
1425 | |
|
|
1426 | data = newSV (NAME_MAX); |
|
|
1427 | SvPOK_on (data); |
|
|
1428 | |
|
|
1429 | req->type = REQ_READLINK; |
|
|
1430 | req->fh = newSVsv (path); |
|
|
1431 | req->ptr2 = SvPVbyte_nolen (path); |
|
|
1432 | req->sv1 = data; |
|
|
1433 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1434 | |
|
|
1435 | REQ_SEND; |
|
|
1436 | } |
|
|
1437 | |
|
|
1438 | void |
|
|
1439 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1440 | SV * out_fh |
|
|
1441 | SV * in_fh |
|
|
1442 | UV in_offset |
|
|
1443 | UV length |
|
|
1444 | SV * callback |
|
|
1445 | PROTOTYPE: $$$$;$ |
|
|
1446 | PPCODE: |
|
|
1447 | { |
|
|
1448 | dREQ; |
|
|
1449 | |
|
|
1450 | req->type = REQ_SENDFILE; |
|
|
1451 | req->fh = newSVsv (out_fh); |
|
|
1452 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1453 | req->sv2 = newSVsv (in_fh); |
|
|
1454 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1455 | req->offs = in_offset; |
|
|
1456 | req->size = length; |
|
|
1457 | |
|
|
1458 | REQ_SEND; |
|
|
1459 | } |
|
|
1460 | |
|
|
1461 | void |
|
|
1462 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
|
|
1463 | SV * fh |
|
|
1464 | UV offset |
|
|
1465 | IV length |
|
|
1466 | SV * callback |
|
|
1467 | PROTOTYPE: $$$;$ |
|
|
1468 | PPCODE: |
|
|
1469 | { |
|
|
1470 | dREQ; |
512 | |
1471 | |
513 | req->type = REQ_READAHEAD; |
1472 | req->type = REQ_READAHEAD; |
|
|
1473 | req->fh = newSVsv (fh); |
514 | req->fd = PerlIO_fileno (fh); |
1474 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
515 | req->offset = offset; |
1475 | req->offs = offset; |
516 | req->length = length; |
1476 | req->size = length; |
517 | req->callback = SvREFCNT_inc (callback); |
|
|
518 | |
1477 | |
519 | send_req (req); |
1478 | REQ_SEND; |
520 | } |
1479 | } |
521 | |
1480 | |
522 | void |
1481 | void |
523 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1482 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
524 | SV * fh_or_path |
1483 | SV * fh_or_path |
525 | SV * callback |
1484 | SV * callback |
526 | ALIAS: |
1485 | ALIAS: |
527 | aio_stat = REQ_STAT |
1486 | aio_stat = REQ_STAT |
528 | aio_lstat = REQ_LSTAT |
1487 | aio_lstat = REQ_LSTAT |
529 | CODE: |
1488 | PPCODE: |
530 | { |
1489 | { |
531 | aio_req req; |
1490 | dREQ; |
532 | |
1491 | |
533 | Newz (0, req, 1, aio_cb); |
1492 | req->ptr2 = malloc (sizeof (Stat_t)); |
534 | |
|
|
535 | if (!req) |
1493 | if (!req->ptr2) |
536 | croak ("out of memory during aio_req allocation"); |
1494 | { |
537 | |
1495 | req_free (req); |
538 | New (0, req->statdata, 1, Stat_t); |
|
|
539 | |
|
|
540 | if (!req->statdata) |
|
|
541 | croak ("out of memory during aio_req->statdata allocation"); |
1496 | croak ("out of memory during aio_stat statdata allocation"); |
|
|
1497 | } |
|
|
1498 | |
|
|
1499 | req->flags |= FLAG_PTR2_FREE; |
542 | |
1500 | |
543 | if (SvPOK (fh_or_path)) |
1501 | if (SvPOK (fh_or_path)) |
544 | { |
1502 | { |
545 | req->type = ix; |
1503 | req->type = ix; |
546 | req->data = newSVsv (fh_or_path); |
1504 | req->sv1 = newSVsv (fh_or_path); |
547 | req->dataptr = SvPV_nolen (req->data); |
1505 | req->ptr1 = SvPVbyte_nolen (fh_or_path); |
548 | } |
1506 | } |
549 | else |
1507 | else |
550 | { |
1508 | { |
551 | req->type = REQ_FSTAT; |
1509 | req->type = REQ_FSTAT; |
|
|
1510 | req->fh = newSVsv (fh_or_path); |
552 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1511 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
553 | } |
1512 | } |
554 | |
1513 | |
555 | req->callback = SvREFCNT_inc (callback); |
1514 | REQ_SEND; |
556 | |
|
|
557 | send_req (req); |
|
|
558 | } |
1515 | } |
559 | |
1516 | |
560 | void |
1517 | void |
561 | aio_unlink(pathname,callback=&PL_sv_undef) |
1518 | aio_unlink (pathname,callback=&PL_sv_undef) |
562 | SV * pathname |
1519 | SV * pathname |
563 | SV * callback |
1520 | SV * callback |
|
|
1521 | ALIAS: |
|
|
1522 | aio_unlink = REQ_UNLINK |
|
|
1523 | aio_rmdir = REQ_RMDIR |
|
|
1524 | aio_readdir = REQ_READDIR |
|
|
1525 | PPCODE: |
|
|
1526 | { |
|
|
1527 | dREQ; |
|
|
1528 | |
|
|
1529 | req->type = ix; |
|
|
1530 | req->sv1 = newSVsv (pathname); |
|
|
1531 | req->ptr1 = SvPVbyte_nolen (pathname); |
|
|
1532 | |
|
|
1533 | REQ_SEND; |
|
|
1534 | } |
|
|
1535 | |
|
|
1536 | void |
|
|
1537 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1538 | SV * oldpath |
|
|
1539 | SV * newpath |
|
|
1540 | SV * callback |
|
|
1541 | ALIAS: |
|
|
1542 | aio_link = REQ_LINK |
|
|
1543 | aio_symlink = REQ_SYMLINK |
|
|
1544 | aio_rename = REQ_RENAME |
|
|
1545 | PPCODE: |
|
|
1546 | { |
|
|
1547 | dREQ; |
|
|
1548 | |
|
|
1549 | req->type = ix; |
|
|
1550 | req->fh = newSVsv (oldpath); |
|
|
1551 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1552 | req->sv1 = newSVsv (newpath); |
|
|
1553 | req->ptr1 = SvPVbyte_nolen (newpath); |
|
|
1554 | |
|
|
1555 | REQ_SEND; |
|
|
1556 | } |
|
|
1557 | |
|
|
1558 | void |
|
|
1559 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1560 | SV * pathname |
|
|
1561 | SV * callback |
|
|
1562 | UV mode |
|
|
1563 | UV dev |
|
|
1564 | PPCODE: |
|
|
1565 | { |
|
|
1566 | dREQ; |
|
|
1567 | |
|
|
1568 | req->type = REQ_MKNOD; |
|
|
1569 | req->sv1 = newSVsv (pathname); |
|
|
1570 | req->ptr1 = SvPVbyte_nolen (pathname); |
|
|
1571 | req->mode = (mode_t)mode; |
|
|
1572 | req->offs = dev; |
|
|
1573 | |
|
|
1574 | REQ_SEND; |
|
|
1575 | } |
|
|
1576 | |
|
|
1577 | void |
|
|
1578 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1579 | double delay |
|
|
1580 | SV * callback |
|
|
1581 | PPCODE: |
|
|
1582 | { |
|
|
1583 | dREQ; |
|
|
1584 | |
|
|
1585 | req->type = REQ_BUSY; |
|
|
1586 | req->int1 = delay < 0. ? 0 : delay; |
|
|
1587 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
|
|
1588 | |
|
|
1589 | REQ_SEND; |
|
|
1590 | } |
|
|
1591 | |
|
|
1592 | void |
|
|
1593 | aio_group (callback=&PL_sv_undef) |
|
|
1594 | SV * callback |
|
|
1595 | PROTOTYPE: ;$ |
|
|
1596 | PPCODE: |
|
|
1597 | { |
|
|
1598 | dREQ; |
|
|
1599 | |
|
|
1600 | req->type = REQ_GROUP; |
|
|
1601 | |
|
|
1602 | req_send (req); |
|
|
1603 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1604 | } |
|
|
1605 | |
|
|
1606 | void |
|
|
1607 | aio_nop (callback=&PL_sv_undef) |
|
|
1608 | SV * callback |
|
|
1609 | PPCODE: |
|
|
1610 | { |
|
|
1611 | dREQ; |
|
|
1612 | |
|
|
1613 | req->type = REQ_NOP; |
|
|
1614 | |
|
|
1615 | REQ_SEND; |
|
|
1616 | } |
|
|
1617 | |
|
|
1618 | int |
|
|
1619 | aioreq_pri (int pri = 0) |
|
|
1620 | PROTOTYPE: ;$ |
564 | CODE: |
1621 | CODE: |
565 | { |
1622 | RETVAL = next_pri - PRI_BIAS; |
566 | aio_req req; |
1623 | if (items > 0) |
567 | |
1624 | { |
568 | Newz (0, req, 1, aio_cb); |
1625 | if (pri < PRI_MIN) pri = PRI_MIN; |
569 | |
1626 | if (pri > PRI_MAX) pri = PRI_MAX; |
570 | if (!req) |
1627 | next_pri = pri + PRI_BIAS; |
571 | croak ("out of memory during aio_req allocation"); |
1628 | } |
572 | |
1629 | OUTPUT: |
573 | req->type = REQ_UNLINK; |
1630 | RETVAL |
574 | req->data = newSVsv (pathname); |
|
|
575 | req->dataptr = SvPV_nolen (req->data); |
|
|
576 | req->callback = SvREFCNT_inc (callback); |
|
|
577 | |
|
|
578 | send_req (req); |
|
|
579 | } |
|
|
580 | |
1631 | |
581 | void |
1632 | void |
|
|
1633 | aioreq_nice (int nice = 0) |
|
|
1634 | CODE: |
|
|
1635 | nice = next_pri - nice; |
|
|
1636 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1637 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1638 | next_pri = nice + PRI_BIAS; |
|
|
1639 | |
|
|
1640 | void |
582 | flush() |
1641 | flush () |
583 | PROTOTYPE: |
1642 | PROTOTYPE: |
584 | CODE: |
1643 | CODE: |
585 | while (nreqs) |
1644 | while (nreqs) |
586 | { |
1645 | { |
587 | poll_wait (); |
1646 | poll_wait (); |
588 | poll_cb (); |
1647 | poll_cb (0); |
589 | } |
1648 | } |
590 | |
1649 | |
591 | void |
1650 | void |
592 | poll() |
1651 | poll() |
593 | PROTOTYPE: |
1652 | PROTOTYPE: |
594 | CODE: |
1653 | CODE: |
595 | if (nreqs) |
1654 | if (nreqs) |
596 | { |
1655 | { |
597 | poll_wait (); |
1656 | poll_wait (); |
598 | poll_cb (); |
1657 | poll_cb (0); |
599 | } |
1658 | } |
600 | |
1659 | |
601 | int |
1660 | int |
602 | poll_fileno() |
1661 | poll_fileno() |
603 | PROTOTYPE: |
1662 | PROTOTYPE: |
… | |
… | |
627 | CODE: |
1686 | CODE: |
628 | RETVAL = nreqs; |
1687 | RETVAL = nreqs; |
629 | OUTPUT: |
1688 | OUTPUT: |
630 | RETVAL |
1689 | RETVAL |
631 | |
1690 | |
|
|
1691 | int |
|
|
1692 | nready() |
|
|
1693 | PROTOTYPE: |
|
|
1694 | CODE: |
|
|
1695 | RETVAL = get_nready (); |
|
|
1696 | OUTPUT: |
|
|
1697 | RETVAL |
|
|
1698 | |
|
|
1699 | int |
|
|
1700 | npending() |
|
|
1701 | PROTOTYPE: |
|
|
1702 | CODE: |
|
|
1703 | RETVAL = get_npending (); |
|
|
1704 | OUTPUT: |
|
|
1705 | RETVAL |
|
|
1706 | |
|
|
1707 | int |
|
|
1708 | nthreads() |
|
|
1709 | PROTOTYPE: |
|
|
1710 | CODE: |
|
|
1711 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1712 | RETVAL = started; |
|
|
1713 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1714 | OUTPUT: |
|
|
1715 | RETVAL |
|
|
1716 | |
|
|
1717 | PROTOTYPES: DISABLE |
|
|
1718 | |
|
|
1719 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1720 | |
|
|
1721 | void |
|
|
1722 | cancel (aio_req_ornot req) |
|
|
1723 | CODE: |
|
|
1724 | req_cancel (req); |
|
|
1725 | |
|
|
1726 | void |
|
|
1727 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1728 | CODE: |
|
|
1729 | SvREFCNT_dec (req->callback); |
|
|
1730 | req->callback = newSVsv (callback); |
|
|
1731 | |
|
|
1732 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1733 | |
|
|
1734 | void |
|
|
1735 | add (aio_req grp, ...) |
|
|
1736 | PPCODE: |
|
|
1737 | { |
|
|
1738 | int i; |
|
|
1739 | aio_req req; |
|
|
1740 | |
|
|
1741 | if (grp->int1 == 2) |
|
|
1742 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1743 | |
|
|
1744 | for (i = 1; i < items; ++i ) |
|
|
1745 | { |
|
|
1746 | if (GIMME_V != G_VOID) |
|
|
1747 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1748 | |
|
|
1749 | req = SvAIO_REQ (ST (i)); |
|
|
1750 | |
|
|
1751 | if (req) |
|
|
1752 | { |
|
|
1753 | ++grp->size; |
|
|
1754 | req->grp = grp; |
|
|
1755 | |
|
|
1756 | req->grp_prev = 0; |
|
|
1757 | req->grp_next = grp->grp_first; |
|
|
1758 | |
|
|
1759 | if (grp->grp_first) |
|
|
1760 | grp->grp_first->grp_prev = req; |
|
|
1761 | |
|
|
1762 | grp->grp_first = req; |
|
|
1763 | } |
|
|
1764 | } |
|
|
1765 | } |
|
|
1766 | |
|
|
1767 | void |
|
|
1768 | cancel_subs (aio_req_ornot req) |
|
|
1769 | CODE: |
|
|
1770 | req_cancel_subs (req); |
|
|
1771 | |
|
|
1772 | void |
|
|
1773 | result (aio_req grp, ...) |
|
|
1774 | CODE: |
|
|
1775 | { |
|
|
1776 | int i; |
|
|
1777 | AV *av; |
|
|
1778 | |
|
|
1779 | grp->errorno = errno; |
|
|
1780 | |
|
|
1781 | av = newAV (); |
|
|
1782 | |
|
|
1783 | for (i = 1; i < items; ++i ) |
|
|
1784 | av_push (av, newSVsv (ST (i))); |
|
|
1785 | |
|
|
1786 | SvREFCNT_dec (grp->sv1); |
|
|
1787 | grp->sv1 = (SV *)av; |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | void |
|
|
1791 | errno (aio_req grp, int errorno = errno) |
|
|
1792 | CODE: |
|
|
1793 | grp->errorno = errorno; |
|
|
1794 | |
|
|
1795 | void |
|
|
1796 | limit (aio_req grp, int limit) |
|
|
1797 | CODE: |
|
|
1798 | grp->int2 = limit; |
|
|
1799 | aio_grp_feed (grp); |
|
|
1800 | |
|
|
1801 | void |
|
|
1802 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1803 | CODE: |
|
|
1804 | { |
|
|
1805 | SvREFCNT_dec (grp->sv2); |
|
|
1806 | grp->sv2 = newSVsv (callback); |
|
|
1807 | |
|
|
1808 | if (grp->int2 <= 0) |
|
|
1809 | grp->int2 = 2; |
|
|
1810 | |
|
|
1811 | aio_grp_feed (grp); |
|
|
1812 | } |
|
|
1813 | |