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1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux && !defined(_GNU_SOURCE) |
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5 | # define _GNU_SOURCE |
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6 | #endif |
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7 | |
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8 | /* just in case */ |
1 | #define _REENTRANT 1 |
9 | #define _REENTRANT 1 |
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10 | |
2 | #include <errno.h> |
11 | #include <errno.h> |
3 | |
12 | |
4 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
5 | #include "perl.h" |
14 | #include "perl.h" |
6 | #include "XSUB.h" |
15 | #include "XSUB.h" |
7 | |
16 | |
8 | #include "autoconf/config.h" |
17 | #include "autoconf/config.h" |
9 | |
18 | |
10 | #include <pthread.h> |
19 | #include <pthread.h> |
11 | |
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 | |
… | |
… | |
23 | # elif __freebsd |
36 | # elif __freebsd |
24 | # include <sys/socket.h> |
37 | # include <sys/socket.h> |
25 | # include <sys/uio.h> |
38 | # include <sys/uio.h> |
26 | # elif __hpux |
39 | # elif __hpux |
27 | # include <sys/socket.h> |
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 |
28 | # endif |
45 | # endif |
29 | #endif |
46 | #endif |
30 | |
47 | |
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48 | /* number of seconds after which idle threads exit */ |
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49 | #define IDLE_TIMEOUT 10 |
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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 |
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60 | |
31 | #if __ia64 |
61 | #if __ia64 |
32 | # 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 |
33 | #else |
65 | #else |
34 | # define STACKSIZE 4096 |
66 | # define STACKSIZE 16384 |
35 | #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; |
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91 | |
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92 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
36 | |
93 | |
37 | enum { |
94 | enum { |
38 | REQ_QUIT, |
95 | REQ_QUIT, |
39 | REQ_OPEN, REQ_CLOSE, |
96 | REQ_OPEN, REQ_CLOSE, |
40 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
97 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
41 | REQ_SENDFILE, |
98 | REQ_SENDFILE, |
42 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
99 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
43 | REQ_FSYNC, REQ_FDATASYNC, |
100 | REQ_FSYNC, REQ_FDATASYNC, |
44 | REQ_UNLINK, REQ_RMDIR, |
101 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
45 | REQ_SYMLINK, |
102 | REQ_MKNOD, REQ_READDIR, |
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103 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
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104 | REQ_GROUP, REQ_NOP, |
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105 | REQ_BUSY, |
46 | }; |
106 | }; |
47 | |
107 | |
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108 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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109 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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110 | |
48 | typedef struct aio_cb { |
111 | typedef struct aio_cb |
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112 | { |
49 | struct aio_cb *volatile next; |
113 | struct aio_cb *volatile next; |
50 | |
114 | |
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115 | SV *callback, *fh; |
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116 | SV *sv1, *sv2; |
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117 | void *ptr1, *ptr2; |
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118 | off_t offs; |
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119 | size_t size; |
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120 | ssize_t result; |
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121 | |
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122 | STRLEN stroffset; |
51 | int type; |
123 | int type; |
52 | |
124 | int int1, int2; |
53 | int fd, fd2; |
125 | int errorno; |
54 | off_t offset; |
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55 | size_t length; |
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56 | ssize_t result; |
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57 | mode_t mode; /* open */ |
126 | mode_t mode; /* open */ |
58 | int errorno; |
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59 | SV *data, *callback; |
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60 | SV *fh, *fh2; |
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61 | void *dataptr, *data2ptr; |
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62 | STRLEN dataoffset; |
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63 | |
127 | |
64 | Stat_t *statdata; |
128 | unsigned char flags; |
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129 | unsigned char pri; |
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130 | |
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131 | SV *self; /* the perl counterpart of this request, if any */ |
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132 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
65 | } aio_cb; |
133 | } aio_cb; |
66 | |
134 | |
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135 | enum { |
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136 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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137 | FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ |
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138 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
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139 | }; |
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140 | |
67 | typedef aio_cb *aio_req; |
141 | typedef aio_cb *aio_req; |
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142 | typedef aio_cb *aio_req_ornot; |
68 | |
143 | |
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144 | enum { |
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145 | PRI_MIN = -4, |
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146 | PRI_MAX = 4, |
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147 | |
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148 | DEFAULT_PRI = 0, |
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149 | PRI_BIAS = -PRI_MIN, |
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150 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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151 | }; |
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152 | |
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153 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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154 | |
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155 | static unsigned int max_poll_time = 0; |
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156 | static unsigned int max_poll_reqs = 0; |
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157 | |
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158 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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159 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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160 | { |
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161 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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162 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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163 | } |
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164 | |
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165 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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166 | |
69 | static int started, wanted; |
167 | static unsigned int started, idle, wanted; |
70 | static volatile int nreqs; |
168 | |
71 | static int max_outstanding = 1<<30; |
169 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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170 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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171 | #else |
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172 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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173 | #endif |
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174 | |
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175 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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176 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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177 | |
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178 | /* worker threads management */ |
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179 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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180 | |
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181 | typedef struct worker { |
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182 | /* locked by wrklock */ |
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183 | struct worker *prev, *next; |
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184 | |
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185 | pthread_t tid; |
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186 | |
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187 | /* locked by reslock, reqlock or wrklock */ |
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188 | aio_req req; /* currently processed request */ |
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189 | void *dbuf; |
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190 | DIR *dirp; |
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191 | } worker; |
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192 | |
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193 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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194 | |
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195 | static void worker_clear (worker *wrk) |
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196 | { |
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197 | if (wrk->dirp) |
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198 | { |
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199 | closedir (wrk->dirp); |
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200 | wrk->dirp = 0; |
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201 | } |
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202 | |
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203 | if (wrk->dbuf) |
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204 | { |
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205 | free (wrk->dbuf); |
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206 | wrk->dbuf = 0; |
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207 | } |
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208 | } |
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209 | |
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210 | static void worker_free (worker *wrk) |
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211 | { |
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212 | wrk->next->prev = wrk->prev; |
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213 | wrk->prev->next = wrk->next; |
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214 | |
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215 | free (wrk); |
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216 | } |
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217 | |
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218 | static volatile unsigned int nreqs, nready, npending; |
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219 | static volatile unsigned int max_idle = 4; |
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220 | static volatile unsigned int max_outstanding = 0xffffffff; |
72 | static int respipe [2]; |
221 | static int respipe [2]; |
73 | |
222 | |
74 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
223 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
75 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
224 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
76 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
225 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
77 | |
226 | |
78 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
227 | #if WORDACCESS_UNSAFE |
79 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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80 | |
228 | |
81 | static void free_req (aio_req req) |
229 | static unsigned int get_nready () |
82 | { |
230 | { |
83 | if (req->data) |
231 | unsigned int retval; |
84 | SvREFCNT_dec (req->data); |
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85 | |
232 | |
86 | if (req->fh) |
233 | LOCK (reqlock); |
87 | SvREFCNT_dec (req->fh); |
234 | retval = nready; |
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235 | UNLOCK (reqlock); |
88 | |
236 | |
89 | if (req->fh2) |
237 | return retval; |
90 | SvREFCNT_dec (req->fh2); |
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91 | |
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92 | if (req->statdata) |
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93 | Safefree (req->statdata); |
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94 | |
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95 | if (req->callback) |
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96 | SvREFCNT_dec (req->callback); |
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97 | |
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98 | Safefree (req); |
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99 | } |
238 | } |
100 | |
239 | |
101 | static void |
240 | static unsigned int get_npending () |
102 | poll_wait () |
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103 | { |
241 | { |
104 | if (nreqs && !ress) |
242 | unsigned int retval; |
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243 | |
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244 | LOCK (reslock); |
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245 | retval = npending; |
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246 | UNLOCK (reslock); |
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247 | |
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248 | return retval; |
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249 | } |
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250 | |
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251 | static unsigned int get_nthreads () |
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252 | { |
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253 | unsigned int retval; |
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254 | |
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255 | LOCK (wrklock); |
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256 | retval = started; |
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257 | UNLOCK (wrklock); |
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258 | |
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259 | return retval; |
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260 | } |
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261 | |
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262 | #else |
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263 | |
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264 | # define get_nready() nready |
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265 | # define get_npending() npending |
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266 | # define get_nthreads() started |
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267 | |
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268 | #endif |
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269 | |
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270 | /* |
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271 | * a somewhat faster data structure might be nice, but |
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272 | * with 8 priorities this actually needs <20 insns |
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273 | * per shift, the most expensive operation. |
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274 | */ |
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275 | typedef struct { |
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276 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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277 | int size; |
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278 | } reqq; |
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279 | |
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280 | static reqq req_queue; |
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281 | static reqq res_queue; |
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282 | |
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283 | int reqq_push (reqq *q, aio_req req) |
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284 | { |
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285 | int pri = req->pri; |
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286 | req->next = 0; |
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287 | |
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288 | if (q->qe[pri]) |
105 | { |
289 | { |
106 | fd_set rfd; |
290 | q->qe[pri]->next = req; |
107 | FD_ZERO(&rfd); |
291 | q->qe[pri] = req; |
108 | FD_SET(respipe [0], &rfd); |
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109 | |
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110 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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111 | } |
292 | } |
112 | } |
293 | else |
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294 | q->qe[pri] = q->qs[pri] = req; |
113 | |
295 | |
114 | static int |
296 | return q->size++; |
115 | poll_cb () |
297 | } |
116 | { |
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117 | dSP; |
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118 | int count = 0; |
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119 | int do_croak = 0; |
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120 | aio_req req; |
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121 | |
298 | |
122 | for (;;) |
299 | aio_req reqq_shift (reqq *q) |
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300 | { |
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301 | int pri; |
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302 | |
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303 | if (!q->size) |
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304 | return 0; |
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305 | |
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306 | --q->size; |
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307 | |
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308 | for (pri = NUM_PRI; pri--; ) |
123 | { |
309 | { |
124 | pthread_mutex_lock (&reslock); |
310 | aio_req req = q->qs[pri]; |
125 | req = ress; |
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126 | |
311 | |
127 | if (req) |
312 | if (req) |
128 | { |
313 | { |
129 | ress = req->next; |
314 | if (!(q->qs[pri] = req->next)) |
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315 | q->qe[pri] = 0; |
130 | |
316 | |
131 | if (!ress) |
317 | return req; |
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318 | } |
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319 | } |
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320 | |
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321 | abort (); |
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322 | } |
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323 | |
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324 | static int poll_cb (); |
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325 | static void req_invoke (aio_req req); |
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326 | static void req_free (aio_req req); |
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327 | static void req_cancel (aio_req req); |
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328 | |
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329 | /* must be called at most once */ |
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330 | static SV *req_sv (aio_req req, const char *klass) |
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331 | { |
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332 | if (!req->self) |
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333 | { |
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334 | req->self = (SV *)newHV (); |
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335 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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336 | } |
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337 | |
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338 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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339 | } |
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340 | |
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341 | static aio_req SvAIO_REQ (SV *sv) |
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342 | { |
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343 | MAGIC *mg; |
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344 | |
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345 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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346 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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347 | |
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348 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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349 | |
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350 | return mg ? (aio_req)mg->mg_ptr : 0; |
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351 | } |
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352 | |
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353 | static void aio_grp_feed (aio_req grp) |
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354 | { |
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355 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
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356 | { |
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357 | int old_len = grp->size; |
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358 | |
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359 | if (grp->sv2 && SvOK (grp->sv2)) |
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360 | { |
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361 | dSP; |
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362 | |
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363 | ENTER; |
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364 | SAVETMPS; |
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365 | PUSHMARK (SP); |
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366 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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367 | PUTBACK; |
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368 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
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369 | SPAGAIN; |
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370 | FREETMPS; |
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371 | LEAVE; |
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372 | } |
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373 | |
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374 | /* stop if no progress has been made */ |
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375 | if (old_len == grp->size) |
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376 | { |
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377 | SvREFCNT_dec (grp->sv2); |
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378 | grp->sv2 = 0; |
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379 | break; |
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380 | } |
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381 | } |
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382 | } |
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383 | |
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384 | static void aio_grp_dec (aio_req grp) |
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385 | { |
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386 | --grp->size; |
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387 | |
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388 | /* call feeder, if applicable */ |
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389 | aio_grp_feed (grp); |
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390 | |
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391 | /* finish, if done */ |
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392 | if (!grp->size && grp->int1) |
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393 | { |
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394 | req_invoke (grp); |
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395 | req_free (grp); |
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396 | } |
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397 | } |
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398 | |
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399 | static void req_invoke (aio_req req) |
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400 | { |
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401 | dSP; |
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402 | |
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403 | if (req->flags & FLAG_SV1_RO_OFF) |
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404 | SvREADONLY_off (req->sv1); |
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405 | |
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406 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
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407 | { |
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408 | ENTER; |
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409 | SAVETMPS; |
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410 | PUSHMARK (SP); |
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411 | EXTEND (SP, 1); |
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412 | |
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413 | switch (req->type) |
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414 | { |
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415 | case REQ_READDIR: |
132 | { |
416 | { |
133 | /* read any signals sent by the worker threads */ |
417 | SV *rv = &PL_sv_undef; |
134 | char buf [32]; |
418 | |
135 | while (read (respipe [0], buf, 32) == 32) |
419 | if (req->result >= 0) |
136 | ; |
420 | { |
|
|
421 | int i; |
|
|
422 | char *buf = req->ptr2; |
|
|
423 | AV *av = newAV (); |
137 | |
424 | |
138 | rese = 0; |
425 | av_extend (av, req->result - 1); |
|
|
426 | |
|
|
427 | for (i = 0; i < req->result; ++i) |
|
|
428 | { |
|
|
429 | SV *sv = newSVpv (buf, 0); |
|
|
430 | |
|
|
431 | av_store (av, i, sv); |
|
|
432 | buf += SvCUR (sv) + 1; |
|
|
433 | } |
|
|
434 | |
|
|
435 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
436 | } |
|
|
437 | |
|
|
438 | PUSHs (rv); |
139 | } |
439 | } |
140 | } |
|
|
141 | |
|
|
142 | pthread_mutex_unlock (&reslock); |
|
|
143 | |
|
|
144 | if (!req) |
|
|
145 | break; |
440 | break; |
146 | |
441 | |
147 | nreqs--; |
442 | case REQ_OPEN: |
148 | |
|
|
149 | if (req->type == REQ_QUIT) |
|
|
150 | started--; |
|
|
151 | else |
|
|
152 | { |
|
|
153 | int errorno = errno; |
|
|
154 | errno = req->errorno; |
|
|
155 | |
|
|
156 | if (req->type == REQ_READ) |
|
|
157 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
158 | |
|
|
159 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
160 | SvREADONLY_off (req->data); |
|
|
161 | |
|
|
162 | if (req->statdata) |
|
|
163 | { |
|
|
164 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
165 | PL_laststatval = req->result; |
|
|
166 | PL_statcache = *(req->statdata); |
|
|
167 | } |
|
|
168 | |
|
|
169 | ENTER; |
|
|
170 | PUSHMARK (SP); |
|
|
171 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
172 | |
|
|
173 | if (req->type == REQ_OPEN) |
|
|
174 | { |
443 | { |
175 | /* convert fd to fh */ |
444 | /* convert fd to fh */ |
176 | SV *fh; |
445 | SV *fh; |
177 | |
446 | |
|
|
447 | PUSHs (sv_2mortal (newSViv (req->result))); |
178 | PUTBACK; |
448 | PUTBACK; |
179 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
449 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
180 | SPAGAIN; |
450 | SPAGAIN; |
181 | |
451 | |
182 | fh = SvREFCNT_inc (POPs); |
452 | fh = POPs; |
183 | |
|
|
184 | PUSHMARK (SP); |
453 | PUSHMARK (SP); |
185 | XPUSHs (sv_2mortal (fh)); |
454 | XPUSHs (fh); |
186 | } |
455 | } |
187 | |
|
|
188 | if (SvOK (req->callback)) |
|
|
189 | { |
456 | break; |
190 | PUTBACK; |
|
|
191 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
192 | SPAGAIN; |
|
|
193 | |
457 | |
194 | if (SvTRUE (ERRSV)) |
458 | case REQ_GROUP: |
|
|
459 | req->int1 = 2; /* mark group as finished */ |
|
|
460 | |
|
|
461 | if (req->sv1) |
195 | { |
462 | { |
196 | free_req (req); |
463 | int i; |
197 | croak (0); |
464 | AV *av = (AV *)req->sv1; |
|
|
465 | |
|
|
466 | EXTEND (SP, AvFILL (av) + 1); |
|
|
467 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
468 | PUSHs (*av_fetch (av, i, 0)); |
198 | } |
469 | } |
|
|
470 | break; |
|
|
471 | |
|
|
472 | case REQ_NOP: |
|
|
473 | case REQ_BUSY: |
|
|
474 | break; |
|
|
475 | |
|
|
476 | case REQ_READLINK: |
|
|
477 | if (req->result > 0) |
|
|
478 | { |
|
|
479 | SvCUR_set (req->sv1, req->result); |
|
|
480 | *SvEND (req->sv1) = 0; |
|
|
481 | PUSHs (req->sv1); |
199 | } |
482 | } |
|
|
483 | break; |
200 | |
484 | |
201 | LEAVE; |
485 | case REQ_STAT: |
|
|
486 | case REQ_LSTAT: |
|
|
487 | case REQ_FSTAT: |
|
|
488 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
489 | PL_laststatval = req->result; |
|
|
490 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
491 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
492 | break; |
202 | |
493 | |
203 | errno = errorno; |
494 | case REQ_READ: |
204 | count++; |
495 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
496 | *SvEND (req->sv1) = 0; |
|
|
497 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
498 | break; |
|
|
499 | |
|
|
500 | default: |
|
|
501 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
502 | break; |
205 | } |
503 | } |
206 | |
504 | |
207 | free_req (req); |
505 | errno = req->errorno; |
|
|
506 | |
|
|
507 | PUTBACK; |
|
|
508 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
509 | SPAGAIN; |
|
|
510 | |
|
|
511 | FREETMPS; |
|
|
512 | LEAVE; |
208 | } |
513 | } |
209 | |
514 | |
210 | return count; |
515 | if (req->grp) |
|
|
516 | { |
|
|
517 | aio_req grp = req->grp; |
|
|
518 | |
|
|
519 | /* unlink request */ |
|
|
520 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
521 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
522 | |
|
|
523 | if (grp->grp_first == req) |
|
|
524 | grp->grp_first = req->grp_next; |
|
|
525 | |
|
|
526 | aio_grp_dec (grp); |
|
|
527 | } |
|
|
528 | |
|
|
529 | if (SvTRUE (ERRSV)) |
|
|
530 | { |
|
|
531 | req_free (req); |
|
|
532 | croak (0); |
|
|
533 | } |
|
|
534 | } |
|
|
535 | |
|
|
536 | static void req_free (aio_req req) |
|
|
537 | { |
|
|
538 | if (req->self) |
|
|
539 | { |
|
|
540 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
541 | SvREFCNT_dec (req->self); |
|
|
542 | } |
|
|
543 | |
|
|
544 | SvREFCNT_dec (req->fh); |
|
|
545 | SvREFCNT_dec (req->sv1); |
|
|
546 | SvREFCNT_dec (req->sv2); |
|
|
547 | SvREFCNT_dec (req->callback); |
|
|
548 | |
|
|
549 | if (req->flags & FLAG_PTR2_FREE) |
|
|
550 | free (req->ptr2); |
|
|
551 | |
|
|
552 | Safefree (req); |
|
|
553 | } |
|
|
554 | |
|
|
555 | static void req_cancel_subs (aio_req grp) |
|
|
556 | { |
|
|
557 | aio_req sub; |
|
|
558 | |
|
|
559 | if (grp->type != REQ_GROUP) |
|
|
560 | return; |
|
|
561 | |
|
|
562 | SvREFCNT_dec (grp->sv2); |
|
|
563 | grp->sv2 = 0; |
|
|
564 | |
|
|
565 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
566 | req_cancel (sub); |
|
|
567 | } |
|
|
568 | |
|
|
569 | static void req_cancel (aio_req req) |
|
|
570 | { |
|
|
571 | req->flags |= FLAG_CANCELLED; |
|
|
572 | |
|
|
573 | req_cancel_subs (req); |
211 | } |
574 | } |
212 | |
575 | |
213 | static void *aio_proc(void *arg); |
576 | static void *aio_proc(void *arg); |
214 | |
577 | |
215 | static void |
|
|
216 | start_thread (void) |
578 | static void start_thread (void) |
217 | { |
579 | { |
218 | sigset_t fullsigset, oldsigset; |
580 | sigset_t fullsigset, oldsigset; |
219 | pthread_t tid; |
|
|
220 | pthread_attr_t attr; |
581 | pthread_attr_t attr; |
|
|
582 | |
|
|
583 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
584 | |
|
|
585 | if (!wrk) |
|
|
586 | croak ("unable to allocate worker thread data"); |
221 | |
587 | |
222 | pthread_attr_init (&attr); |
588 | pthread_attr_init (&attr); |
223 | pthread_attr_setstacksize (&attr, STACKSIZE); |
589 | pthread_attr_setstacksize (&attr, STACKSIZE); |
224 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
590 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
591 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
592 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
593 | #endif |
225 | |
594 | |
226 | sigfillset (&fullsigset); |
595 | sigfillset (&fullsigset); |
|
|
596 | |
|
|
597 | LOCK (wrklock); |
227 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
598 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
228 | |
599 | |
229 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
600 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
230 | started++; |
|
|
231 | |
|
|
232 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
233 | } |
|
|
234 | |
|
|
235 | static void |
|
|
236 | send_req (aio_req req) |
|
|
237 | { |
|
|
238 | while (started < wanted && nreqs >= started) |
|
|
239 | start_thread (); |
|
|
240 | |
|
|
241 | nreqs++; |
|
|
242 | |
|
|
243 | pthread_mutex_lock (&reqlock); |
|
|
244 | |
|
|
245 | req->next = 0; |
|
|
246 | |
|
|
247 | if (reqe) |
|
|
248 | { |
601 | { |
249 | reqe->next = req; |
602 | wrk->prev = &wrk_first; |
250 | reqe = req; |
603 | wrk->next = wrk_first.next; |
|
|
604 | wrk_first.next->prev = wrk; |
|
|
605 | wrk_first.next = wrk; |
|
|
606 | ++started; |
251 | } |
607 | } |
252 | else |
608 | else |
253 | reqe = reqs = req; |
609 | free (wrk); |
254 | |
610 | |
|
|
611 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
612 | UNLOCK (wrklock); |
|
|
613 | } |
|
|
614 | |
|
|
615 | static void maybe_start_thread () |
|
|
616 | { |
|
|
617 | if (get_nthreads () >= wanted) |
|
|
618 | return; |
|
|
619 | |
|
|
620 | /* todo: maybe use idle here, but might be less exact */ |
|
|
621 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
622 | return; |
|
|
623 | |
|
|
624 | start_thread (); |
|
|
625 | } |
|
|
626 | |
|
|
627 | static void req_send (aio_req req) |
|
|
628 | { |
|
|
629 | ++nreqs; |
|
|
630 | |
|
|
631 | LOCK (reqlock); |
|
|
632 | ++nready; |
|
|
633 | reqq_push (&req_queue, req); |
255 | pthread_cond_signal (&reqwait); |
634 | pthread_cond_signal (&reqwait); |
256 | pthread_mutex_unlock (&reqlock); |
635 | UNLOCK (reqlock); |
257 | |
636 | |
258 | if (nreqs > max_outstanding) |
637 | maybe_start_thread (); |
259 | for (;;) |
|
|
260 | { |
|
|
261 | poll_cb (); |
|
|
262 | |
|
|
263 | if (nreqs <= max_outstanding) |
|
|
264 | break; |
|
|
265 | |
|
|
266 | poll_wait (); |
|
|
267 | } |
|
|
268 | } |
638 | } |
269 | |
639 | |
270 | static void |
640 | static void end_thread (void) |
271 | end_thread (void) |
|
|
272 | { |
641 | { |
273 | aio_req req; |
642 | aio_req req; |
|
|
643 | |
274 | Newz (0, req, 1, aio_cb); |
644 | Newz (0, req, 1, aio_cb); |
|
|
645 | |
275 | req->type = REQ_QUIT; |
646 | req->type = REQ_QUIT; |
|
|
647 | req->pri = PRI_MAX + PRI_BIAS; |
276 | |
648 | |
277 | send_req (req); |
649 | LOCK (reqlock); |
|
|
650 | reqq_push (&req_queue, req); |
|
|
651 | pthread_cond_signal (&reqwait); |
|
|
652 | UNLOCK (reqlock); |
|
|
653 | |
|
|
654 | LOCK (wrklock); |
|
|
655 | --started; |
|
|
656 | UNLOCK (wrklock); |
|
|
657 | } |
|
|
658 | |
|
|
659 | static void set_max_idle (int nthreads) |
|
|
660 | { |
|
|
661 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
662 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
663 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
278 | } |
664 | } |
279 | |
665 | |
280 | static void min_parallel (int nthreads) |
666 | static void min_parallel (int nthreads) |
281 | { |
667 | { |
282 | if (wanted < nthreads) |
668 | if (wanted < nthreads) |
283 | wanted = nthreads; |
669 | wanted = nthreads; |
284 | } |
670 | } |
285 | |
671 | |
286 | static void max_parallel (int nthreads) |
672 | static void max_parallel (int nthreads) |
287 | { |
673 | { |
288 | int cur = started; |
|
|
289 | |
|
|
290 | if (wanted > nthreads) |
674 | if (wanted > nthreads) |
291 | wanted = nthreads; |
675 | wanted = nthreads; |
292 | |
676 | |
293 | while (cur > wanted) |
677 | while (started > wanted) |
|
|
678 | end_thread (); |
|
|
679 | } |
|
|
680 | |
|
|
681 | static void poll_wait () |
|
|
682 | { |
|
|
683 | fd_set rfd; |
|
|
684 | |
|
|
685 | while (nreqs) |
294 | { |
686 | { |
|
|
687 | int size; |
|
|
688 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
689 | size = res_queue.size; |
|
|
690 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
691 | |
|
|
692 | if (size) |
|
|
693 | return; |
|
|
694 | |
295 | end_thread (); |
695 | maybe_start_thread (); |
296 | cur--; |
696 | |
|
|
697 | FD_ZERO(&rfd); |
|
|
698 | FD_SET(respipe [0], &rfd); |
|
|
699 | |
|
|
700 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
297 | } |
701 | } |
|
|
702 | } |
298 | |
703 | |
299 | while (started > wanted) |
704 | static int poll_cb () |
|
|
705 | { |
|
|
706 | dSP; |
|
|
707 | int count = 0; |
|
|
708 | int maxreqs = max_poll_reqs; |
|
|
709 | int do_croak = 0; |
|
|
710 | struct timeval tv_start, tv_now; |
|
|
711 | aio_req req; |
|
|
712 | |
|
|
713 | if (max_poll_time) |
|
|
714 | gettimeofday (&tv_start, 0); |
|
|
715 | |
|
|
716 | for (;;) |
300 | { |
717 | { |
|
|
718 | for (;;) |
|
|
719 | { |
|
|
720 | maybe_start_thread (); |
|
|
721 | |
|
|
722 | LOCK (reslock); |
|
|
723 | req = reqq_shift (&res_queue); |
|
|
724 | |
|
|
725 | if (req) |
|
|
726 | { |
|
|
727 | --npending; |
|
|
728 | |
|
|
729 | if (!res_queue.size) |
|
|
730 | { |
|
|
731 | /* read any signals sent by the worker threads */ |
|
|
732 | char buf [32]; |
|
|
733 | while (read (respipe [0], buf, 32) == 32) |
|
|
734 | ; |
|
|
735 | } |
|
|
736 | } |
|
|
737 | |
|
|
738 | UNLOCK (reslock); |
|
|
739 | |
|
|
740 | if (!req) |
|
|
741 | break; |
|
|
742 | |
|
|
743 | --nreqs; |
|
|
744 | |
|
|
745 | if (req->type == REQ_GROUP && req->size) |
|
|
746 | { |
|
|
747 | req->int1 = 1; /* mark request as delayed */ |
|
|
748 | continue; |
|
|
749 | } |
|
|
750 | else |
|
|
751 | { |
|
|
752 | req_invoke (req); |
|
|
753 | |
|
|
754 | count++; |
|
|
755 | } |
|
|
756 | |
|
|
757 | req_free (req); |
|
|
758 | |
|
|
759 | if (maxreqs && !--maxreqs) |
|
|
760 | break; |
|
|
761 | |
|
|
762 | if (max_poll_time) |
|
|
763 | { |
|
|
764 | gettimeofday (&tv_now, 0); |
|
|
765 | |
|
|
766 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
767 | break; |
|
|
768 | } |
|
|
769 | } |
|
|
770 | |
|
|
771 | if (nreqs <= max_outstanding) |
|
|
772 | break; |
|
|
773 | |
301 | poll_wait (); |
774 | poll_wait (); |
302 | poll_cb (); |
775 | |
|
|
776 | ++maxreqs; |
303 | } |
777 | } |
|
|
778 | |
|
|
779 | return count; |
304 | } |
780 | } |
305 | |
781 | |
306 | static void create_pipe () |
782 | static void create_pipe () |
307 | { |
783 | { |
308 | if (pipe (respipe)) |
784 | if (pipe (respipe)) |
… | |
… | |
311 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
787 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
312 | croak ("cannot set result pipe to nonblocking mode"); |
788 | croak ("cannot set result pipe to nonblocking mode"); |
313 | |
789 | |
314 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
790 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
315 | croak ("cannot set result pipe to nonblocking mode"); |
791 | croak ("cannot set result pipe to nonblocking mode"); |
316 | } |
|
|
317 | |
|
|
318 | static void atfork_prepare (void) |
|
|
319 | { |
|
|
320 | pthread_mutex_lock (&reqlock); |
|
|
321 | pthread_mutex_lock (&reslock); |
|
|
322 | } |
|
|
323 | |
|
|
324 | static void atfork_parent (void) |
|
|
325 | { |
|
|
326 | pthread_mutex_unlock (&reslock); |
|
|
327 | pthread_mutex_unlock (&reqlock); |
|
|
328 | } |
|
|
329 | |
|
|
330 | static void atfork_child (void) |
|
|
331 | { |
|
|
332 | aio_req prv; |
|
|
333 | |
|
|
334 | started = 0; |
|
|
335 | |
|
|
336 | while (reqs) |
|
|
337 | { |
|
|
338 | prv = reqs; |
|
|
339 | reqs = prv->next; |
|
|
340 | free_req (prv); |
|
|
341 | } |
|
|
342 | |
|
|
343 | reqs = reqe = 0; |
|
|
344 | |
|
|
345 | while (ress) |
|
|
346 | { |
|
|
347 | prv = ress; |
|
|
348 | ress = prv->next; |
|
|
349 | free_req (prv); |
|
|
350 | } |
|
|
351 | |
|
|
352 | ress = rese = 0; |
|
|
353 | |
|
|
354 | close (respipe [0]); |
|
|
355 | close (respipe [1]); |
|
|
356 | create_pipe (); |
|
|
357 | |
|
|
358 | atfork_parent (); |
|
|
359 | } |
792 | } |
360 | |
793 | |
361 | /*****************************************************************************/ |
794 | /*****************************************************************************/ |
362 | /* work around various missing functions */ |
795 | /* work around various missing functions */ |
363 | |
796 | |
… | |
… | |
368 | /* |
801 | /* |
369 | * make our pread/pwrite safe against themselves, but not against |
802 | * make our pread/pwrite safe against themselves, but not against |
370 | * normal read/write by using a mutex. slows down execution a lot, |
803 | * normal read/write by using a mutex. slows down execution a lot, |
371 | * but that's your problem, not mine. |
804 | * but that's your problem, not mine. |
372 | */ |
805 | */ |
373 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
806 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
374 | |
807 | |
375 | static ssize_t |
808 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
376 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
377 | { |
809 | { |
378 | ssize_t res; |
810 | ssize_t res; |
379 | off_t ooffset; |
811 | off_t ooffset; |
380 | |
812 | |
381 | pthread_mutex_lock (&iolock); |
813 | LOCK (preadwritelock); |
382 | ooffset = lseek (fd, 0, SEEK_CUR); |
814 | ooffset = lseek (fd, 0, SEEK_CUR); |
383 | lseek (fd, offset, SEEK_SET); |
815 | lseek (fd, offset, SEEK_SET); |
384 | res = read (fd, buf, count); |
816 | res = read (fd, buf, count); |
385 | lseek (fd, ooffset, SEEK_SET); |
817 | lseek (fd, ooffset, SEEK_SET); |
386 | pthread_mutex_unlock (&iolock); |
818 | UNLOCK (preadwritelock); |
387 | |
819 | |
388 | return res; |
820 | return res; |
389 | } |
821 | } |
390 | |
822 | |
391 | static ssize_t |
|
|
392 | pwrite (int fd, void *buf, size_t count, off_t offset) |
823 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
393 | { |
824 | { |
394 | ssize_t res; |
825 | ssize_t res; |
395 | off_t ooffset; |
826 | off_t ooffset; |
396 | |
827 | |
397 | pthread_mutex_lock (&iolock); |
828 | LOCK (preadwritelock); |
398 | ooffset = lseek (fd, 0, SEEK_CUR); |
829 | ooffset = lseek (fd, 0, SEEK_CUR); |
399 | lseek (fd, offset, SEEK_SET); |
830 | lseek (fd, offset, SEEK_SET); |
400 | res = write (fd, buf, count); |
831 | res = write (fd, buf, count); |
401 | lseek (fd, offset, SEEK_SET); |
832 | lseek (fd, offset, SEEK_SET); |
402 | pthread_mutex_unlock (&iolock); |
833 | UNLOCK (preadwritelock); |
403 | |
834 | |
404 | return res; |
835 | return res; |
405 | } |
836 | } |
406 | #endif |
837 | #endif |
407 | |
838 | |
408 | #if !HAVE_FDATASYNC |
839 | #if !HAVE_FDATASYNC |
409 | # define fdatasync fsync |
840 | # define fdatasync fsync |
410 | #endif |
841 | #endif |
411 | |
842 | |
412 | #if !HAVE_READAHEAD |
843 | #if !HAVE_READAHEAD |
413 | # define readahead aio_readahead |
844 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
414 | |
845 | |
415 | static char readahead_buf[4096]; |
846 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
416 | |
|
|
417 | static ssize_t |
|
|
418 | readahead (int fd, off_t offset, size_t count) |
|
|
419 | { |
847 | { |
|
|
848 | dBUF; |
|
|
849 | |
420 | while (count > 0) |
850 | while (count > 0) |
421 | { |
851 | { |
422 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
852 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
423 | |
853 | |
424 | pread (fd, readahead_buf, len, offset); |
854 | pread (fd, aio_buf, len, offset); |
425 | offset += len; |
855 | offset += len; |
426 | count -= len; |
856 | count -= len; |
427 | } |
857 | } |
428 | |
858 | |
429 | errno = 0; |
859 | errno = 0; |
430 | } |
860 | } |
|
|
861 | |
431 | #endif |
862 | #endif |
432 | |
863 | |
|
|
864 | #if !HAVE_READDIR_R |
|
|
865 | # define readdir_r aio_readdir_r |
|
|
866 | |
|
|
867 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
868 | |
|
|
869 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
870 | { |
|
|
871 | struct dirent *e; |
|
|
872 | int errorno; |
|
|
873 | |
|
|
874 | LOCK (readdirlock); |
|
|
875 | |
|
|
876 | e = readdir (dirp); |
|
|
877 | errorno = errno; |
|
|
878 | |
|
|
879 | if (e) |
|
|
880 | { |
|
|
881 | *res = ent; |
|
|
882 | strcpy (ent->d_name, e->d_name); |
|
|
883 | } |
|
|
884 | else |
|
|
885 | *res = 0; |
|
|
886 | |
|
|
887 | UNLOCK (readdirlock); |
|
|
888 | |
|
|
889 | errno = errorno; |
|
|
890 | return e ? 0 : -1; |
|
|
891 | } |
|
|
892 | #endif |
|
|
893 | |
433 | /* sendfile always needs emulation */ |
894 | /* sendfile always needs emulation */ |
434 | static ssize_t |
|
|
435 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
895 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
436 | { |
896 | { |
437 | ssize_t res; |
897 | ssize_t res; |
438 | |
898 | |
439 | if (!count) |
899 | if (!count) |
440 | return 0; |
900 | return 0; |
441 | |
901 | |
|
|
902 | #if HAVE_SENDFILE |
442 | #if __linux |
903 | # if __linux |
443 | res = sendfile (ofd, ifd, &offset, count); |
904 | res = sendfile (ofd, ifd, &offset, count); |
444 | |
905 | |
445 | #elif __freebsd |
906 | # elif __freebsd |
446 | /* |
907 | /* |
447 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
908 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
448 | * wasted on making it similar to other i/o functions. |
909 | * wasted on making it similar to other I/O functions. |
449 | */ |
910 | */ |
450 | { |
911 | { |
451 | off_t sbytes; |
912 | off_t sbytes; |
452 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
913 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
453 | |
914 | |
454 | if (!res && errno == EAGAIN) |
915 | if (res < 0 && sbytes) |
|
|
916 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
455 | res = sbytes; |
917 | res = sbytes; |
456 | } |
918 | } |
457 | |
919 | |
458 | #elif __hpux |
920 | # elif __hpux |
459 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
921 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
460 | |
922 | |
|
|
923 | # elif __solaris |
|
|
924 | { |
|
|
925 | struct sendfilevec vec; |
|
|
926 | size_t sbytes; |
|
|
927 | |
|
|
928 | vec.sfv_fd = ifd; |
|
|
929 | vec.sfv_flag = 0; |
|
|
930 | vec.sfv_off = offset; |
|
|
931 | vec.sfv_len = count; |
|
|
932 | |
|
|
933 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
934 | |
|
|
935 | if (res < 0 && sbytes) |
|
|
936 | res = sbytes; |
|
|
937 | } |
|
|
938 | |
|
|
939 | # endif |
461 | #else |
940 | #else |
462 | res = -1; |
941 | res = -1; |
463 | errno = ENOSYS; |
942 | errno = ENOSYS; |
464 | #endif |
943 | #endif |
465 | |
944 | |
|
|
945 | if (res < 0 |
466 | if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK)) |
946 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
947 | #if __solaris |
|
|
948 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
949 | #endif |
|
|
950 | ) |
|
|
951 | ) |
467 | { |
952 | { |
468 | /* emulate sendfile. this is a major pain in the ass */ |
953 | /* emulate sendfile. this is a major pain in the ass */ |
469 | char *buf = malloc (4096); |
954 | dBUF; |
|
|
955 | |
470 | res = 0; |
956 | res = 0; |
471 | |
957 | |
472 | for (;;) |
958 | while (count) |
473 | { |
959 | { |
474 | ssize_t cnt; |
960 | ssize_t cnt; |
475 | |
961 | |
476 | cnt = pread (ifd, buf, 4096, offset); |
962 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
477 | |
963 | |
478 | if (cnt <= 0) |
964 | if (cnt <= 0) |
479 | { |
965 | { |
480 | if (cnt && !res) res = -1; |
966 | if (cnt && !res) res = -1; |
481 | break; |
967 | break; |
482 | } |
968 | } |
483 | |
969 | |
484 | cnt = write (ofd, buf, cnt); |
970 | cnt = write (ofd, aio_buf, cnt); |
485 | |
971 | |
486 | if (cnt <= 0) |
972 | if (cnt <= 0) |
487 | { |
973 | { |
488 | if (cnt && !res) res = -1; |
974 | if (cnt && !res) res = -1; |
489 | break; |
975 | break; |
490 | } |
976 | } |
491 | |
977 | |
492 | offset += cnt; |
978 | offset += cnt; |
493 | res += cnt; |
979 | res += cnt; |
|
|
980 | count -= cnt; |
494 | } |
981 | } |
495 | |
|
|
496 | { |
|
|
497 | int errorno = errno; |
|
|
498 | free (buf); |
|
|
499 | errno = errorno; |
|
|
500 | } |
|
|
501 | } |
982 | } |
502 | |
983 | |
503 | return res; |
984 | return res; |
|
|
985 | } |
|
|
986 | |
|
|
987 | /* read a full directory */ |
|
|
988 | static void scandir_ (aio_req req, worker *self) |
|
|
989 | { |
|
|
990 | DIR *dirp; |
|
|
991 | union |
|
|
992 | { |
|
|
993 | struct dirent d; |
|
|
994 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
995 | } *u; |
|
|
996 | struct dirent *entp; |
|
|
997 | char *name, *names; |
|
|
998 | int memlen = 4096; |
|
|
999 | int memofs = 0; |
|
|
1000 | int res = 0; |
|
|
1001 | int errorno; |
|
|
1002 | |
|
|
1003 | LOCK (wrklock); |
|
|
1004 | self->dirp = dirp = opendir (req->ptr1); |
|
|
1005 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1006 | req->flags |= FLAG_PTR2_FREE; |
|
|
1007 | req->ptr2 = names = malloc (memlen); |
|
|
1008 | UNLOCK (wrklock); |
|
|
1009 | |
|
|
1010 | if (dirp && u && names) |
|
|
1011 | for (;;) |
|
|
1012 | { |
|
|
1013 | errno = 0; |
|
|
1014 | readdir_r (dirp, &u->d, &entp); |
|
|
1015 | |
|
|
1016 | if (!entp) |
|
|
1017 | break; |
|
|
1018 | |
|
|
1019 | name = entp->d_name; |
|
|
1020 | |
|
|
1021 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1022 | { |
|
|
1023 | int len = strlen (name) + 1; |
|
|
1024 | |
|
|
1025 | res++; |
|
|
1026 | |
|
|
1027 | while (memofs + len > memlen) |
|
|
1028 | { |
|
|
1029 | memlen *= 2; |
|
|
1030 | LOCK (wrklock); |
|
|
1031 | req->ptr2 = names = realloc (names, memlen); |
|
|
1032 | UNLOCK (wrklock); |
|
|
1033 | |
|
|
1034 | if (!names) |
|
|
1035 | break; |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | memcpy (names + memofs, name, len); |
|
|
1039 | memofs += len; |
|
|
1040 | } |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | if (errno) |
|
|
1044 | res = -1; |
|
|
1045 | |
|
|
1046 | req->result = res; |
504 | } |
1047 | } |
505 | |
1048 | |
506 | /*****************************************************************************/ |
1049 | /*****************************************************************************/ |
507 | |
1050 | |
508 | static void * |
|
|
509 | aio_proc (void *thr_arg) |
1051 | static void *aio_proc (void *thr_arg) |
510 | { |
1052 | { |
511 | aio_req req; |
1053 | aio_req req; |
512 | int type; |
1054 | struct timespec ts; |
|
|
1055 | worker *self = (worker *)thr_arg; |
513 | |
1056 | |
514 | do |
1057 | /* try to distribute timeouts somewhat evenly */ |
|
|
1058 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1059 | * (1000000000UL / 1024UL); |
|
|
1060 | |
|
|
1061 | for (;;) |
515 | { |
1062 | { |
516 | pthread_mutex_lock (&reqlock); |
1063 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1064 | |
|
|
1065 | LOCK (reqlock); |
517 | |
1066 | |
518 | for (;;) |
1067 | for (;;) |
519 | { |
1068 | { |
520 | req = reqs; |
1069 | self->req = req = reqq_shift (&req_queue); |
521 | |
|
|
522 | if (reqs) |
|
|
523 | { |
|
|
524 | reqs = reqs->next; |
|
|
525 | if (!reqs) reqe = 0; |
|
|
526 | } |
|
|
527 | |
1070 | |
528 | if (req) |
1071 | if (req) |
529 | break; |
1072 | break; |
530 | |
1073 | |
|
|
1074 | ++idle; |
|
|
1075 | |
|
|
1076 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1077 | == ETIMEDOUT) |
|
|
1078 | { |
|
|
1079 | if (idle > max_idle) |
|
|
1080 | { |
|
|
1081 | --idle; |
|
|
1082 | UNLOCK (reqlock); |
|
|
1083 | LOCK (wrklock); |
|
|
1084 | --started; |
|
|
1085 | UNLOCK (wrklock); |
|
|
1086 | goto quit; |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | /* we are allowed to idle, so do so without any timeout */ |
531 | pthread_cond_wait (&reqwait, &reqlock); |
1090 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1091 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1092 | } |
|
|
1093 | |
|
|
1094 | --idle; |
532 | } |
1095 | } |
533 | |
1096 | |
534 | pthread_mutex_unlock (&reqlock); |
1097 | --nready; |
|
|
1098 | |
|
|
1099 | UNLOCK (reqlock); |
535 | |
1100 | |
536 | errno = 0; /* strictly unnecessary */ |
1101 | errno = 0; /* strictly unnecessary */ |
537 | |
1102 | |
538 | type = req->type; |
1103 | if (!(req->flags & FLAG_CANCELLED)) |
539 | |
|
|
540 | switch (type) |
1104 | switch (req->type) |
541 | { |
1105 | { |
542 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1106 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
543 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1107 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
544 | |
1108 | |
545 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1109 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
546 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1110 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
547 | |
1111 | |
548 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1112 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
549 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1113 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
550 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1114 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
551 | |
1115 | |
552 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1116 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
553 | case REQ_CLOSE: req->result = close (req->fd); break; |
1117 | case REQ_CLOSE: req->result = close (req->int1); break; |
554 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1118 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
555 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1119 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
|
|
1120 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
|
|
1121 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
556 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1122 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1123 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1124 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
557 | |
1125 | |
558 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1126 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
559 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1127 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
|
|
1128 | case REQ_READDIR: scandir_ (req, self); break; |
560 | |
1129 | |
|
|
1130 | case REQ_BUSY: |
|
|
1131 | { |
|
|
1132 | struct timeval tv; |
|
|
1133 | |
|
|
1134 | tv.tv_sec = req->int1; |
|
|
1135 | tv.tv_usec = req->int2; |
|
|
1136 | |
|
|
1137 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | case REQ_GROUP: |
|
|
1141 | case REQ_NOP: |
|
|
1142 | break; |
|
|
1143 | |
561 | case REQ_QUIT: |
1144 | case REQ_QUIT: |
562 | break; |
1145 | goto quit; |
563 | |
1146 | |
564 | default: |
1147 | default: |
565 | req->result = ENOSYS; |
1148 | req->result = ENOSYS; |
566 | break; |
1149 | break; |
567 | } |
1150 | } |
568 | |
1151 | |
569 | req->errorno = errno; |
1152 | req->errorno = errno; |
570 | |
1153 | |
571 | pthread_mutex_lock (&reslock); |
1154 | LOCK (reslock); |
572 | |
1155 | |
573 | req->next = 0; |
1156 | ++npending; |
574 | |
1157 | |
575 | if (rese) |
1158 | if (!reqq_push (&res_queue, req)) |
576 | { |
|
|
577 | rese->next = req; |
|
|
578 | rese = req; |
|
|
579 | } |
|
|
580 | else |
|
|
581 | { |
|
|
582 | rese = ress = req; |
|
|
583 | |
|
|
584 | /* write a dummy byte to the pipe so fh becomes ready */ |
1159 | /* write a dummy byte to the pipe so fh becomes ready */ |
585 | write (respipe [1], &respipe, 1); |
1160 | write (respipe [1], &respipe, 1); |
586 | } |
|
|
587 | |
1161 | |
588 | pthread_mutex_unlock (&reslock); |
1162 | self->req = 0; |
|
|
1163 | worker_clear (self); |
|
|
1164 | |
|
|
1165 | UNLOCK (reslock); |
589 | } |
1166 | } |
590 | while (type != REQ_QUIT); |
1167 | |
|
|
1168 | quit: |
|
|
1169 | LOCK (wrklock); |
|
|
1170 | worker_free (self); |
|
|
1171 | UNLOCK (wrklock); |
591 | |
1172 | |
592 | return 0; |
1173 | return 0; |
|
|
1174 | } |
|
|
1175 | |
|
|
1176 | /*****************************************************************************/ |
|
|
1177 | |
|
|
1178 | static void atfork_prepare (void) |
|
|
1179 | { |
|
|
1180 | LOCK (wrklock); |
|
|
1181 | LOCK (reqlock); |
|
|
1182 | LOCK (reslock); |
|
|
1183 | #if !HAVE_PREADWRITE |
|
|
1184 | LOCK (preadwritelock); |
|
|
1185 | #endif |
|
|
1186 | #if !HAVE_READDIR_R |
|
|
1187 | LOCK (readdirlock); |
|
|
1188 | #endif |
|
|
1189 | } |
|
|
1190 | |
|
|
1191 | static void atfork_parent (void) |
|
|
1192 | { |
|
|
1193 | #if !HAVE_READDIR_R |
|
|
1194 | UNLOCK (readdirlock); |
|
|
1195 | #endif |
|
|
1196 | #if !HAVE_PREADWRITE |
|
|
1197 | UNLOCK (preadwritelock); |
|
|
1198 | #endif |
|
|
1199 | UNLOCK (reslock); |
|
|
1200 | UNLOCK (reqlock); |
|
|
1201 | UNLOCK (wrklock); |
|
|
1202 | } |
|
|
1203 | |
|
|
1204 | static void atfork_child (void) |
|
|
1205 | { |
|
|
1206 | aio_req prv; |
|
|
1207 | |
|
|
1208 | while (prv = reqq_shift (&req_queue)) |
|
|
1209 | req_free (prv); |
|
|
1210 | |
|
|
1211 | while (prv = reqq_shift (&res_queue)) |
|
|
1212 | req_free (prv); |
|
|
1213 | |
|
|
1214 | while (wrk_first.next != &wrk_first) |
|
|
1215 | { |
|
|
1216 | worker *wrk = wrk_first.next; |
|
|
1217 | |
|
|
1218 | if (wrk->req) |
|
|
1219 | req_free (wrk->req); |
|
|
1220 | |
|
|
1221 | worker_clear (wrk); |
|
|
1222 | worker_free (wrk); |
|
|
1223 | } |
|
|
1224 | |
|
|
1225 | started = 0; |
|
|
1226 | idle = 0; |
|
|
1227 | nreqs = 0; |
|
|
1228 | nready = 0; |
|
|
1229 | npending = 0; |
|
|
1230 | |
|
|
1231 | close (respipe [0]); |
|
|
1232 | close (respipe [1]); |
|
|
1233 | create_pipe (); |
|
|
1234 | |
|
|
1235 | atfork_parent (); |
593 | } |
1236 | } |
594 | |
1237 | |
595 | #define dREQ \ |
1238 | #define dREQ \ |
596 | aio_req req; \ |
1239 | aio_req req; \ |
|
|
1240 | int req_pri = next_pri; \ |
|
|
1241 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
597 | \ |
1242 | \ |
598 | if (SvOK (callback) && !SvROK (callback)) \ |
1243 | if (SvOK (callback) && !SvROK (callback)) \ |
599 | croak ("clalback must be undef or of reference type"); \ |
1244 | croak ("callback must be undef or of reference type"); \ |
600 | \ |
1245 | \ |
601 | Newz (0, req, 1, aio_cb); \ |
1246 | Newz (0, req, 1, aio_cb); \ |
602 | if (!req) \ |
1247 | if (!req) \ |
603 | croak ("out of memory during aio_req allocation"); \ |
1248 | croak ("out of memory during aio_req allocation"); \ |
604 | \ |
1249 | \ |
605 | req->callback = newSVsv (callback); |
1250 | req->callback = newSVsv (callback); \ |
|
|
1251 | req->pri = req_pri |
|
|
1252 | |
|
|
1253 | #define REQ_SEND \ |
|
|
1254 | req_send (req); \ |
|
|
1255 | \ |
|
|
1256 | if (GIMME_V != G_VOID) \ |
|
|
1257 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
606 | |
1258 | |
607 | MODULE = IO::AIO PACKAGE = IO::AIO |
1259 | MODULE = IO::AIO PACKAGE = IO::AIO |
608 | |
1260 | |
609 | PROTOTYPES: ENABLE |
1261 | PROTOTYPES: ENABLE |
610 | |
1262 | |
611 | BOOT: |
1263 | BOOT: |
612 | { |
1264 | { |
|
|
1265 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1266 | |
|
|
1267 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1268 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1269 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1270 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1271 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1272 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1273 | |
613 | create_pipe (); |
1274 | create_pipe (); |
614 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1275 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
615 | } |
1276 | } |
616 | |
1277 | |
617 | void |
1278 | void |
618 | min_parallel(nthreads) |
1279 | max_poll_reqs (int nreqs) |
619 | int nthreads |
|
|
620 | PROTOTYPE: $ |
1280 | PROTOTYPE: $ |
|
|
1281 | CODE: |
|
|
1282 | max_poll_reqs = nreqs; |
621 | |
1283 | |
622 | void |
1284 | void |
623 | max_parallel(nthreads) |
1285 | max_poll_time (double nseconds) |
624 | int nthreads |
|
|
625 | PROTOTYPE: $ |
1286 | PROTOTYPE: $ |
|
|
1287 | CODE: |
|
|
1288 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1289 | |
|
|
1290 | void |
|
|
1291 | min_parallel (int nthreads) |
|
|
1292 | PROTOTYPE: $ |
|
|
1293 | |
|
|
1294 | void |
|
|
1295 | max_parallel (int nthreads) |
|
|
1296 | PROTOTYPE: $ |
|
|
1297 | |
|
|
1298 | void |
|
|
1299 | max_idle (int nthreads) |
|
|
1300 | PROTOTYPE: $ |
|
|
1301 | CODE: |
|
|
1302 | set_max_idle (nthreads); |
626 | |
1303 | |
627 | int |
1304 | int |
628 | max_outstanding(nreqs) |
1305 | max_outstanding (int maxreqs) |
629 | int nreqs |
1306 | PROTOTYPE: $ |
630 | PROTOTYPE: $ |
|
|
631 | CODE: |
1307 | CODE: |
632 | RETVAL = max_outstanding; |
1308 | RETVAL = max_outstanding; |
633 | max_outstanding = nreqs; |
1309 | max_outstanding = maxreqs; |
|
|
1310 | OUTPUT: |
|
|
1311 | RETVAL |
634 | |
1312 | |
635 | void |
1313 | void |
636 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1314 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
637 | SV * pathname |
1315 | SV8 * pathname |
638 | int flags |
1316 | int flags |
639 | int mode |
1317 | int mode |
640 | SV * callback |
1318 | SV * callback |
641 | PROTOTYPE: $$$;$ |
1319 | PROTOTYPE: $$$;$ |
642 | CODE: |
1320 | PPCODE: |
643 | { |
1321 | { |
644 | dREQ; |
1322 | dREQ; |
645 | |
1323 | |
646 | req->type = REQ_OPEN; |
1324 | req->type = REQ_OPEN; |
647 | req->data = newSVsv (pathname); |
1325 | req->sv1 = newSVsv (pathname); |
648 | req->dataptr = SvPVbyte_nolen (req->data); |
1326 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
649 | req->fd = flags; |
1327 | req->int1 = flags; |
650 | req->mode = mode; |
1328 | req->mode = mode; |
651 | |
1329 | |
652 | send_req (req); |
1330 | REQ_SEND; |
653 | } |
1331 | } |
654 | |
1332 | |
655 | void |
1333 | void |
656 | aio_close(fh,callback=&PL_sv_undef) |
1334 | aio_close (fh,callback=&PL_sv_undef) |
657 | SV * fh |
1335 | SV * fh |
658 | SV * callback |
1336 | SV * callback |
659 | PROTOTYPE: $;$ |
1337 | PROTOTYPE: $;$ |
660 | ALIAS: |
1338 | ALIAS: |
661 | aio_close = REQ_CLOSE |
1339 | aio_close = REQ_CLOSE |
662 | aio_fsync = REQ_FSYNC |
1340 | aio_fsync = REQ_FSYNC |
663 | aio_fdatasync = REQ_FDATASYNC |
1341 | aio_fdatasync = REQ_FDATASYNC |
664 | CODE: |
1342 | PPCODE: |
665 | { |
1343 | { |
666 | dREQ; |
1344 | dREQ; |
667 | |
1345 | |
668 | req->type = ix; |
1346 | req->type = ix; |
669 | req->fh = newSVsv (fh); |
1347 | req->fh = newSVsv (fh); |
670 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1348 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
671 | |
1349 | |
672 | send_req (req); |
1350 | REQ_SEND (req); |
673 | } |
1351 | } |
674 | |
1352 | |
675 | void |
1353 | void |
676 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1354 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
677 | SV * fh |
1355 | SV * fh |
678 | UV offset |
1356 | UV offset |
679 | UV length |
1357 | UV length |
680 | SV * data |
1358 | SV8 * data |
681 | UV dataoffset |
1359 | UV dataoffset |
682 | SV * callback |
1360 | SV * callback |
683 | ALIAS: |
1361 | ALIAS: |
684 | aio_read = REQ_READ |
1362 | aio_read = REQ_READ |
685 | aio_write = REQ_WRITE |
1363 | aio_write = REQ_WRITE |
686 | PROTOTYPE: $$$$$;$ |
1364 | PROTOTYPE: $$$$$;$ |
687 | CODE: |
1365 | PPCODE: |
688 | { |
1366 | { |
689 | aio_req req; |
|
|
690 | STRLEN svlen; |
1367 | STRLEN svlen; |
691 | char *svptr = SvPVbyte (data, svlen); |
1368 | char *svptr = SvPVbyte (data, svlen); |
692 | |
1369 | |
693 | SvUPGRADE (data, SVt_PV); |
1370 | SvUPGRADE (data, SVt_PV); |
694 | SvPOK_on (data); |
1371 | SvPOK_on (data); |
… | |
… | |
716 | |
1393 | |
717 | { |
1394 | { |
718 | dREQ; |
1395 | dREQ; |
719 | |
1396 | |
720 | req->type = ix; |
1397 | req->type = ix; |
721 | req->fh = newSVsv (fh); |
1398 | req->fh = newSVsv (fh); |
722 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1399 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
723 | : IoOFP (sv_2io (fh))); |
1400 | : IoOFP (sv_2io (fh))); |
724 | req->offset = offset; |
1401 | req->offs = offset; |
725 | req->length = length; |
1402 | req->size = length; |
726 | req->data = SvREFCNT_inc (data); |
1403 | req->sv1 = SvREFCNT_inc (data); |
727 | req->dataptr = (char *)svptr + dataoffset; |
1404 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1405 | req->stroffset = dataoffset; |
728 | |
1406 | |
729 | if (!SvREADONLY (data)) |
1407 | if (!SvREADONLY (data)) |
730 | { |
1408 | { |
731 | SvREADONLY_on (data); |
1409 | SvREADONLY_on (data); |
732 | req->data2ptr = (void *)data; |
1410 | req->flags |= FLAG_SV1_RO_OFF; |
733 | } |
1411 | } |
734 | |
1412 | |
735 | send_req (req); |
1413 | REQ_SEND; |
736 | } |
1414 | } |
737 | } |
1415 | } |
738 | |
1416 | |
739 | void |
1417 | void |
|
|
1418 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1419 | SV8 * path |
|
|
1420 | SV * callback |
|
|
1421 | PROTOTYPE: $$;$ |
|
|
1422 | PPCODE: |
|
|
1423 | { |
|
|
1424 | SV *data; |
|
|
1425 | dREQ; |
|
|
1426 | |
|
|
1427 | data = newSV (NAME_MAX); |
|
|
1428 | SvPOK_on (data); |
|
|
1429 | |
|
|
1430 | req->type = REQ_READLINK; |
|
|
1431 | req->fh = newSVsv (path); |
|
|
1432 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1433 | req->sv1 = data; |
|
|
1434 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1435 | |
|
|
1436 | REQ_SEND; |
|
|
1437 | } |
|
|
1438 | |
|
|
1439 | void |
740 | aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1440 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
741 | SV * out_fh |
1441 | SV * out_fh |
742 | SV * in_fh |
1442 | SV * in_fh |
743 | UV in_offset |
1443 | UV in_offset |
744 | UV length |
1444 | UV length |
745 | SV * callback |
1445 | SV * callback |
746 | PROTOTYPE: $$$$;$ |
1446 | PROTOTYPE: $$$$;$ |
747 | CODE: |
1447 | PPCODE: |
748 | { |
1448 | { |
749 | dREQ; |
1449 | dREQ; |
750 | |
1450 | |
751 | req->type = REQ_SENDFILE; |
1451 | req->type = REQ_SENDFILE; |
752 | req->fh = newSVsv (out_fh); |
1452 | req->fh = newSVsv (out_fh); |
753 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1453 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
754 | req->fh2 = newSVsv (in_fh); |
1454 | req->sv2 = newSVsv (in_fh); |
755 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1455 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
756 | req->offset = in_offset; |
1456 | req->offs = in_offset; |
757 | req->length = length; |
1457 | req->size = length; |
758 | |
1458 | |
759 | send_req (req); |
1459 | REQ_SEND; |
760 | } |
1460 | } |
761 | |
1461 | |
762 | void |
1462 | void |
763 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1463 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
764 | SV * fh |
1464 | SV * fh |
765 | UV offset |
1465 | UV offset |
766 | IV length |
1466 | IV length |
767 | SV * callback |
1467 | SV * callback |
768 | PROTOTYPE: $$$;$ |
1468 | PROTOTYPE: $$$;$ |
769 | CODE: |
1469 | PPCODE: |
770 | { |
1470 | { |
771 | dREQ; |
1471 | dREQ; |
772 | |
1472 | |
773 | req->type = REQ_READAHEAD; |
1473 | req->type = REQ_READAHEAD; |
774 | req->fh = newSVsv (fh); |
1474 | req->fh = newSVsv (fh); |
775 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1475 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
776 | req->offset = offset; |
1476 | req->offs = offset; |
777 | req->length = length; |
1477 | req->size = length; |
778 | |
1478 | |
779 | send_req (req); |
1479 | REQ_SEND; |
780 | } |
1480 | } |
781 | |
1481 | |
782 | void |
1482 | void |
783 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1483 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
784 | SV * fh_or_path |
1484 | SV8 * fh_or_path |
785 | SV * callback |
1485 | SV * callback |
786 | ALIAS: |
1486 | ALIAS: |
787 | aio_stat = REQ_STAT |
1487 | aio_stat = REQ_STAT |
788 | aio_lstat = REQ_LSTAT |
1488 | aio_lstat = REQ_LSTAT |
789 | CODE: |
1489 | PPCODE: |
790 | { |
1490 | { |
791 | dREQ; |
1491 | dREQ; |
792 | |
1492 | |
793 | New (0, req->statdata, 1, Stat_t); |
1493 | req->ptr2 = malloc (sizeof (Stat_t)); |
794 | if (!req->statdata) |
1494 | if (!req->ptr2) |
795 | { |
1495 | { |
796 | free_req (req); |
1496 | req_free (req); |
797 | croak ("out of memory during aio_req->statdata allocation"); |
1497 | croak ("out of memory during aio_stat statdata allocation"); |
798 | } |
1498 | } |
|
|
1499 | |
|
|
1500 | req->flags |= FLAG_PTR2_FREE; |
799 | |
1501 | |
800 | if (SvPOK (fh_or_path)) |
1502 | if (SvPOK (fh_or_path)) |
801 | { |
1503 | { |
802 | req->type = ix; |
1504 | req->type = ix; |
803 | req->data = newSVsv (fh_or_path); |
1505 | req->sv1 = newSVsv (fh_or_path); |
804 | req->dataptr = SvPVbyte_nolen (req->data); |
1506 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
805 | } |
1507 | } |
806 | else |
1508 | else |
807 | { |
1509 | { |
808 | req->type = REQ_FSTAT; |
1510 | req->type = REQ_FSTAT; |
809 | req->fh = newSVsv (fh_or_path); |
1511 | req->fh = newSVsv (fh_or_path); |
810 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1512 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
811 | } |
1513 | } |
812 | |
1514 | |
813 | send_req (req); |
1515 | REQ_SEND; |
814 | } |
1516 | } |
815 | |
1517 | |
816 | void |
1518 | void |
817 | aio_unlink(pathname,callback=&PL_sv_undef) |
1519 | aio_unlink (pathname,callback=&PL_sv_undef) |
818 | SV * pathname |
1520 | SV8 * pathname |
819 | SV * callback |
1521 | SV * callback |
820 | ALIAS: |
1522 | ALIAS: |
821 | aio_unlink = REQ_UNLINK |
1523 | aio_unlink = REQ_UNLINK |
822 | aio_rmdir = REQ_RMDIR |
1524 | aio_rmdir = REQ_RMDIR |
|
|
1525 | aio_readdir = REQ_READDIR |
823 | CODE: |
1526 | PPCODE: |
824 | { |
1527 | { |
825 | dREQ; |
1528 | dREQ; |
826 | |
1529 | |
827 | req->type = ix; |
1530 | req->type = ix; |
828 | req->data = newSVsv (pathname); |
1531 | req->sv1 = newSVsv (pathname); |
829 | req->dataptr = SvPVbyte_nolen (req->data); |
1532 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
830 | |
|
|
831 | send_req (req); |
|
|
832 | } |
|
|
833 | |
1533 | |
|
|
1534 | REQ_SEND; |
|
|
1535 | } |
|
|
1536 | |
834 | void |
1537 | void |
835 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1538 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
836 | SV * oldpath |
1539 | SV8 * oldpath |
837 | SV * newpath |
1540 | SV8 * newpath |
838 | SV * callback |
1541 | SV * callback |
|
|
1542 | ALIAS: |
|
|
1543 | aio_link = REQ_LINK |
|
|
1544 | aio_symlink = REQ_SYMLINK |
|
|
1545 | aio_rename = REQ_RENAME |
839 | CODE: |
1546 | PPCODE: |
840 | { |
1547 | { |
841 | dREQ; |
1548 | dREQ; |
842 | |
1549 | |
843 | req->type = REQ_SYMLINK; |
1550 | req->type = ix; |
844 | req->fh = newSVsv (oldpath); |
1551 | req->fh = newSVsv (oldpath); |
845 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1552 | req->ptr2 = SvPVbyte_nolen (req->fh); |
846 | req->data = newSVsv (newpath); |
1553 | req->sv1 = newSVsv (newpath); |
847 | req->dataptr = SvPVbyte_nolen (req->data); |
1554 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
848 | |
1555 | |
849 | send_req (req); |
1556 | REQ_SEND; |
850 | } |
1557 | } |
851 | |
1558 | |
852 | void |
1559 | void |
|
|
1560 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1561 | SV8 * pathname |
|
|
1562 | SV * callback |
|
|
1563 | UV mode |
|
|
1564 | UV dev |
|
|
1565 | PPCODE: |
|
|
1566 | { |
|
|
1567 | dREQ; |
|
|
1568 | |
|
|
1569 | req->type = REQ_MKNOD; |
|
|
1570 | req->sv1 = newSVsv (pathname); |
|
|
1571 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1572 | req->mode = (mode_t)mode; |
|
|
1573 | req->offs = dev; |
|
|
1574 | |
|
|
1575 | REQ_SEND; |
|
|
1576 | } |
|
|
1577 | |
|
|
1578 | void |
|
|
1579 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1580 | double delay |
|
|
1581 | SV * callback |
|
|
1582 | PPCODE: |
|
|
1583 | { |
|
|
1584 | dREQ; |
|
|
1585 | |
|
|
1586 | req->type = REQ_BUSY; |
|
|
1587 | req->int1 = delay < 0. ? 0 : delay; |
|
|
1588 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
|
|
1589 | |
|
|
1590 | REQ_SEND; |
|
|
1591 | } |
|
|
1592 | |
|
|
1593 | void |
|
|
1594 | aio_group (callback=&PL_sv_undef) |
|
|
1595 | SV * callback |
|
|
1596 | PROTOTYPE: ;$ |
|
|
1597 | PPCODE: |
|
|
1598 | { |
|
|
1599 | dREQ; |
|
|
1600 | |
|
|
1601 | req->type = REQ_GROUP; |
|
|
1602 | |
|
|
1603 | req_send (req); |
|
|
1604 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1605 | } |
|
|
1606 | |
|
|
1607 | void |
|
|
1608 | aio_nop (callback=&PL_sv_undef) |
|
|
1609 | SV * callback |
|
|
1610 | PPCODE: |
|
|
1611 | { |
|
|
1612 | dREQ; |
|
|
1613 | |
|
|
1614 | req->type = REQ_NOP; |
|
|
1615 | |
|
|
1616 | REQ_SEND; |
|
|
1617 | } |
|
|
1618 | |
|
|
1619 | int |
|
|
1620 | aioreq_pri (int pri = 0) |
|
|
1621 | PROTOTYPE: ;$ |
|
|
1622 | CODE: |
|
|
1623 | RETVAL = next_pri - PRI_BIAS; |
|
|
1624 | if (items > 0) |
|
|
1625 | { |
|
|
1626 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1627 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1628 | next_pri = pri + PRI_BIAS; |
|
|
1629 | } |
|
|
1630 | OUTPUT: |
|
|
1631 | RETVAL |
|
|
1632 | |
|
|
1633 | void |
|
|
1634 | aioreq_nice (int nice = 0) |
|
|
1635 | CODE: |
|
|
1636 | nice = next_pri - nice; |
|
|
1637 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1638 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1639 | next_pri = nice + PRI_BIAS; |
|
|
1640 | |
|
|
1641 | void |
853 | flush() |
1642 | flush () |
854 | PROTOTYPE: |
1643 | PROTOTYPE: |
855 | CODE: |
1644 | CODE: |
856 | while (nreqs) |
1645 | while (nreqs) |
857 | { |
1646 | { |
858 | poll_wait (); |
1647 | poll_wait (); |
859 | poll_cb (); |
1648 | poll_cb (); |
860 | } |
1649 | } |
861 | |
1650 | |
862 | void |
1651 | int |
863 | poll() |
1652 | poll() |
864 | PROTOTYPE: |
1653 | PROTOTYPE: |
865 | CODE: |
1654 | CODE: |
866 | if (nreqs) |
|
|
867 | { |
|
|
868 | poll_wait (); |
1655 | poll_wait (); |
869 | poll_cb (); |
1656 | RETVAL = poll_cb (); |
870 | } |
1657 | OUTPUT: |
|
|
1658 | RETVAL |
871 | |
1659 | |
872 | int |
1660 | int |
873 | poll_fileno() |
1661 | poll_fileno() |
874 | PROTOTYPE: |
1662 | PROTOTYPE: |
875 | CODE: |
1663 | CODE: |
… | |
… | |
887 | |
1675 | |
888 | void |
1676 | void |
889 | poll_wait() |
1677 | poll_wait() |
890 | PROTOTYPE: |
1678 | PROTOTYPE: |
891 | CODE: |
1679 | CODE: |
892 | if (nreqs) |
|
|
893 | poll_wait (); |
1680 | poll_wait (); |
894 | |
1681 | |
895 | int |
1682 | int |
896 | nreqs() |
1683 | nreqs() |
897 | PROTOTYPE: |
1684 | PROTOTYPE: |
898 | CODE: |
1685 | CODE: |
899 | RETVAL = nreqs; |
1686 | RETVAL = nreqs; |
900 | OUTPUT: |
1687 | OUTPUT: |
901 | RETVAL |
1688 | RETVAL |
902 | |
1689 | |
|
|
1690 | int |
|
|
1691 | nready() |
|
|
1692 | PROTOTYPE: |
|
|
1693 | CODE: |
|
|
1694 | RETVAL = get_nready (); |
|
|
1695 | OUTPUT: |
|
|
1696 | RETVAL |
|
|
1697 | |
|
|
1698 | int |
|
|
1699 | npending() |
|
|
1700 | PROTOTYPE: |
|
|
1701 | CODE: |
|
|
1702 | RETVAL = get_npending (); |
|
|
1703 | OUTPUT: |
|
|
1704 | RETVAL |
|
|
1705 | |
|
|
1706 | int |
|
|
1707 | nthreads() |
|
|
1708 | PROTOTYPE: |
|
|
1709 | CODE: |
|
|
1710 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1711 | RETVAL = started; |
|
|
1712 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1713 | OUTPUT: |
|
|
1714 | RETVAL |
|
|
1715 | |
|
|
1716 | PROTOTYPES: DISABLE |
|
|
1717 | |
|
|
1718 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1719 | |
|
|
1720 | void |
|
|
1721 | cancel (aio_req_ornot req) |
|
|
1722 | CODE: |
|
|
1723 | req_cancel (req); |
|
|
1724 | |
|
|
1725 | void |
|
|
1726 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1727 | CODE: |
|
|
1728 | SvREFCNT_dec (req->callback); |
|
|
1729 | req->callback = newSVsv (callback); |
|
|
1730 | |
|
|
1731 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1732 | |
|
|
1733 | void |
|
|
1734 | add (aio_req grp, ...) |
|
|
1735 | PPCODE: |
|
|
1736 | { |
|
|
1737 | int i; |
|
|
1738 | aio_req req; |
|
|
1739 | |
|
|
1740 | if (grp->int1 == 2) |
|
|
1741 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1742 | |
|
|
1743 | for (i = 1; i < items; ++i ) |
|
|
1744 | { |
|
|
1745 | if (GIMME_V != G_VOID) |
|
|
1746 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1747 | |
|
|
1748 | req = SvAIO_REQ (ST (i)); |
|
|
1749 | |
|
|
1750 | if (req) |
|
|
1751 | { |
|
|
1752 | ++grp->size; |
|
|
1753 | req->grp = grp; |
|
|
1754 | |
|
|
1755 | req->grp_prev = 0; |
|
|
1756 | req->grp_next = grp->grp_first; |
|
|
1757 | |
|
|
1758 | if (grp->grp_first) |
|
|
1759 | grp->grp_first->grp_prev = req; |
|
|
1760 | |
|
|
1761 | grp->grp_first = req; |
|
|
1762 | } |
|
|
1763 | } |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | void |
|
|
1767 | cancel_subs (aio_req_ornot req) |
|
|
1768 | CODE: |
|
|
1769 | req_cancel_subs (req); |
|
|
1770 | |
|
|
1771 | void |
|
|
1772 | result (aio_req grp, ...) |
|
|
1773 | CODE: |
|
|
1774 | { |
|
|
1775 | int i; |
|
|
1776 | AV *av; |
|
|
1777 | |
|
|
1778 | grp->errorno = errno; |
|
|
1779 | |
|
|
1780 | av = newAV (); |
|
|
1781 | |
|
|
1782 | for (i = 1; i < items; ++i ) |
|
|
1783 | av_push (av, newSVsv (ST (i))); |
|
|
1784 | |
|
|
1785 | SvREFCNT_dec (grp->sv1); |
|
|
1786 | grp->sv1 = (SV *)av; |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | void |
|
|
1790 | errno (aio_req grp, int errorno = errno) |
|
|
1791 | CODE: |
|
|
1792 | grp->errorno = errorno; |
|
|
1793 | |
|
|
1794 | void |
|
|
1795 | limit (aio_req grp, int limit) |
|
|
1796 | CODE: |
|
|
1797 | grp->int2 = limit; |
|
|
1798 | aio_grp_feed (grp); |
|
|
1799 | |
|
|
1800 | void |
|
|
1801 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1802 | CODE: |
|
|
1803 | { |
|
|
1804 | SvREFCNT_dec (grp->sv2); |
|
|
1805 | grp->sv2 = newSVsv (callback); |
|
|
1806 | |
|
|
1807 | if (grp->int2 <= 0) |
|
|
1808 | grp->int2 = 2; |
|
|
1809 | |
|
|
1810 | aio_grp_feed (grp); |
|
|
1811 | } |
|
|
1812 | |