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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 |
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46 | #endif |
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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 |
29 | #endif |
59 | #endif |
30 | |
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 |
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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 |
35 | #endif |
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; |
36 | |
91 | |
37 | enum { |
92 | enum { |
38 | REQ_QUIT, |
93 | REQ_QUIT, |
39 | REQ_OPEN, REQ_CLOSE, |
94 | REQ_OPEN, REQ_CLOSE, |
40 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
95 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
41 | REQ_SENDFILE, |
96 | REQ_SENDFILE, |
42 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
97 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
43 | REQ_FSYNC, REQ_FDATASYNC, |
98 | REQ_FSYNC, REQ_FDATASYNC, |
44 | REQ_UNLINK, REQ_RMDIR, |
99 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
45 | REQ_SYMLINK, |
100 | REQ_MKNOD, REQ_READDIR, |
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101 | REQ_LINK, REQ_SYMLINK, |
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102 | REQ_GROUP, REQ_NOP, |
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103 | REQ_BUSY, |
46 | }; |
104 | }; |
47 | |
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 | |
48 | typedef struct aio_cb { |
109 | typedef struct aio_cb |
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110 | { |
49 | struct aio_cb *volatile next; |
111 | struct aio_cb *volatile next; |
50 | |
112 | |
51 | int type; |
113 | SV *data, *callback; |
52 | |
114 | SV *fh, *fh2; |
53 | int fd, fd2; |
115 | void *dataptr, *data2ptr; |
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116 | Stat_t *statdata; |
54 | off_t offset; |
117 | off_t offset; |
55 | size_t length; |
118 | size_t length; |
56 | ssize_t result; |
119 | ssize_t result; |
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120 | |
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121 | STRLEN dataoffset; |
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122 | int type; |
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123 | int fd, fd2; |
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124 | int errorno; |
57 | mode_t mode; /* open */ |
125 | 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 | |
126 | |
64 | Stat_t *statdata; |
127 | unsigned char flags; |
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128 | unsigned char pri; |
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129 | |
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130 | SV *self; /* the perl counterpart of this request, if any */ |
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131 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
65 | } aio_cb; |
132 | } aio_cb; |
66 | |
133 | |
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134 | enum { |
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135 | FLAG_CANCELLED = 0x01, |
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136 | }; |
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137 | |
67 | typedef aio_cb *aio_req; |
138 | typedef aio_cb *aio_req; |
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139 | typedef aio_cb *aio_req_ornot; |
68 | |
140 | |
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141 | enum { |
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142 | PRI_MIN = -4, |
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143 | PRI_MAX = 4, |
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144 | |
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145 | DEFAULT_PRI = 0, |
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146 | PRI_BIAS = -PRI_MIN, |
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147 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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148 | }; |
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149 | |
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150 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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151 | |
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152 | static unsigned int max_poll_time = 0; |
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153 | static unsigned int max_poll_reqs = 0; |
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154 | |
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155 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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156 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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157 | { |
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158 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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159 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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160 | } |
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161 | |
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162 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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163 | |
69 | static int started, wanted; |
164 | static unsigned int started, idle, wanted; |
70 | static volatile int nreqs; |
165 | |
71 | static int max_outstanding = 1<<30; |
166 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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167 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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168 | #else |
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169 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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170 | #endif |
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171 | |
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172 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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173 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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174 | |
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175 | /* worker threads management */ |
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176 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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177 | |
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178 | typedef struct worker { |
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179 | /* locked by wrklock */ |
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180 | struct worker *prev, *next; |
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181 | |
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182 | pthread_t tid; |
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183 | |
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184 | /* locked by reslock, reqlock or wrklock */ |
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185 | aio_req req; /* currently processed request */ |
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186 | void *dbuf; |
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187 | DIR *dirp; |
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188 | } worker; |
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189 | |
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190 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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191 | |
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192 | static void worker_clear (worker *wrk) |
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193 | { |
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194 | if (wrk->dirp) |
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195 | { |
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196 | closedir (wrk->dirp); |
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197 | wrk->dirp = 0; |
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198 | } |
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199 | |
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200 | if (wrk->dbuf) |
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201 | { |
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202 | free (wrk->dbuf); |
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203 | wrk->dbuf = 0; |
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204 | } |
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205 | } |
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206 | |
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207 | static void worker_free (worker *wrk) |
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208 | { |
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209 | wrk->next->prev = wrk->prev; |
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210 | wrk->prev->next = wrk->next; |
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211 | |
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212 | free (wrk); |
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213 | } |
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214 | |
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215 | static volatile unsigned int nreqs, nready, npending; |
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216 | static volatile unsigned int max_idle = 4; |
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217 | static volatile unsigned int max_outstanding = 0xffffffff; |
72 | static int respipe [2]; |
218 | static int respipe [2]; |
73 | |
219 | |
74 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
220 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
75 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
221 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
76 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
222 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
77 | |
223 | |
78 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
224 | #if WORDACCESS_UNSAFE |
79 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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80 | |
225 | |
81 | static void free_req (aio_req req) |
226 | static unsigned int get_nready () |
82 | { |
227 | { |
83 | if (req->data) |
228 | unsigned int retval; |
84 | SvREFCNT_dec (req->data); |
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85 | |
229 | |
86 | if (req->fh) |
230 | LOCK (reqlock); |
87 | SvREFCNT_dec (req->fh); |
231 | retval = nready; |
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232 | UNLOCK (reqlock); |
88 | |
233 | |
89 | if (req->fh2) |
234 | 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 | } |
235 | } |
100 | |
236 | |
101 | static void |
237 | static unsigned int get_npending () |
102 | poll_wait () |
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103 | { |
238 | { |
104 | if (nreqs && !ress) |
239 | unsigned int retval; |
105 | { |
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106 | fd_set rfd; |
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107 | FD_ZERO(&rfd); |
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108 | FD_SET(respipe [0], &rfd); |
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109 | |
240 | |
110 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
241 | LOCK (reslock); |
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242 | retval = npending; |
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243 | UNLOCK (reslock); |
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244 | |
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245 | return retval; |
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246 | } |
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247 | |
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248 | static unsigned int get_nthreads () |
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249 | { |
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250 | unsigned int retval; |
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251 | |
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252 | LOCK (wrklock); |
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253 | retval = started; |
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254 | UNLOCK (wrklock); |
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255 | |
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256 | return retval; |
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257 | } |
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258 | |
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259 | #else |
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260 | |
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261 | # define get_nready() nready |
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262 | # define get_npending() npending |
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263 | # define get_nthreads() started |
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264 | |
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265 | #endif |
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266 | |
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267 | /* |
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268 | * a somewhat faster data structure might be nice, but |
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269 | * with 8 priorities this actually needs <20 insns |
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270 | * per shift, the most expensive operation. |
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271 | */ |
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272 | typedef struct { |
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273 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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274 | int size; |
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275 | } reqq; |
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276 | |
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277 | static reqq req_queue; |
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278 | static reqq res_queue; |
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279 | |
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280 | int reqq_push (reqq *q, aio_req req) |
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281 | { |
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282 | int pri = req->pri; |
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283 | req->next = 0; |
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284 | |
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285 | if (q->qe[pri]) |
111 | } |
286 | { |
112 | } |
287 | q->qe[pri]->next = req; |
113 | |
288 | q->qe[pri] = req; |
114 | static int |
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115 | poll_cb () |
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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 | |
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122 | for (;;) |
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123 | { |
289 | } |
124 | pthread_mutex_lock (&reslock); |
290 | else |
125 | req = ress; |
291 | q->qe[pri] = q->qs[pri] = req; |
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292 | |
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293 | return q->size++; |
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294 | } |
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295 | |
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296 | aio_req reqq_shift (reqq *q) |
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297 | { |
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298 | int pri; |
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299 | |
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300 | if (!q->size) |
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301 | return 0; |
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302 | |
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303 | --q->size; |
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304 | |
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305 | for (pri = NUM_PRI; pri--; ) |
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306 | { |
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307 | aio_req req = q->qs[pri]; |
126 | |
308 | |
127 | if (req) |
309 | if (req) |
128 | { |
310 | { |
129 | ress = req->next; |
311 | if (!(q->qs[pri] = req->next)) |
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312 | q->qe[pri] = 0; |
130 | |
313 | |
131 | if (!ress) |
314 | return req; |
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315 | } |
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316 | } |
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317 | |
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318 | abort (); |
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319 | } |
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320 | |
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321 | static int poll_cb (); |
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322 | static void req_invoke (aio_req req); |
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323 | static void req_free (aio_req req); |
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324 | static void req_cancel (aio_req req); |
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325 | |
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326 | /* must be called at most once */ |
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327 | static SV *req_sv (aio_req req, const char *klass) |
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328 | { |
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329 | if (!req->self) |
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330 | { |
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331 | req->self = (SV *)newHV (); |
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332 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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333 | } |
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334 | |
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335 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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336 | } |
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337 | |
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338 | static aio_req SvAIO_REQ (SV *sv) |
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339 | { |
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340 | MAGIC *mg; |
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341 | |
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342 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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343 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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344 | |
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345 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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346 | |
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347 | return mg ? (aio_req)mg->mg_ptr : 0; |
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348 | } |
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349 | |
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350 | static void aio_grp_feed (aio_req grp) |
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351 | { |
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352 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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353 | { |
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354 | int old_len = grp->length; |
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355 | |
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356 | if (grp->fh2 && SvOK (grp->fh2)) |
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357 | { |
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358 | dSP; |
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359 | |
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360 | ENTER; |
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361 | SAVETMPS; |
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362 | PUSHMARK (SP); |
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363 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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364 | PUTBACK; |
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365 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
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366 | SPAGAIN; |
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367 | FREETMPS; |
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368 | LEAVE; |
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369 | } |
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370 | |
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371 | /* stop if no progress has been made */ |
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372 | if (old_len == grp->length) |
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373 | { |
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374 | SvREFCNT_dec (grp->fh2); |
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375 | grp->fh2 = 0; |
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376 | break; |
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377 | } |
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378 | } |
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379 | } |
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380 | |
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381 | static void aio_grp_dec (aio_req grp) |
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382 | { |
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383 | --grp->length; |
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384 | |
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385 | /* call feeder, if applicable */ |
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386 | aio_grp_feed (grp); |
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387 | |
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388 | /* finish, if done */ |
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389 | if (!grp->length && grp->fd) |
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390 | { |
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391 | req_invoke (grp); |
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392 | req_free (grp); |
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393 | } |
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394 | } |
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395 | |
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396 | static void req_invoke (aio_req req) |
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397 | { |
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398 | dSP; |
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399 | |
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400 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
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401 | { |
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402 | ENTER; |
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403 | SAVETMPS; |
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404 | PUSHMARK (SP); |
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405 | EXTEND (SP, 1); |
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406 | |
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407 | switch (req->type) |
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408 | { |
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409 | case REQ_READDIR: |
132 | { |
410 | { |
133 | /* read any signals sent by the worker threads */ |
411 | SV *rv = &PL_sv_undef; |
134 | char buf [32]; |
412 | |
135 | while (read (respipe [0], buf, 32) == 32) |
413 | if (req->result >= 0) |
136 | ; |
414 | { |
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415 | int i; |
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416 | char *buf = req->data2ptr; |
|
|
417 | AV *av = newAV (); |
137 | |
418 | |
138 | rese = 0; |
419 | av_extend (av, req->result - 1); |
|
|
420 | |
|
|
421 | for (i = 0; i < req->result; ++i) |
|
|
422 | { |
|
|
423 | SV *sv = newSVpv (buf, 0); |
|
|
424 | |
|
|
425 | av_store (av, i, sv); |
|
|
426 | buf += SvCUR (sv) + 1; |
|
|
427 | } |
|
|
428 | |
|
|
429 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
430 | } |
|
|
431 | |
|
|
432 | PUSHs (rv); |
139 | } |
433 | } |
140 | } |
|
|
141 | |
|
|
142 | pthread_mutex_unlock (&reslock); |
|
|
143 | |
|
|
144 | if (!req) |
|
|
145 | break; |
434 | break; |
146 | |
435 | |
147 | nreqs--; |
436 | 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 | { |
437 | { |
175 | /* convert fd to fh */ |
438 | /* convert fd to fh */ |
176 | SV *fh; |
439 | SV *fh; |
177 | |
440 | |
|
|
441 | PUSHs (sv_2mortal (newSViv (req->result))); |
178 | PUTBACK; |
442 | PUTBACK; |
179 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
443 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
180 | SPAGAIN; |
444 | SPAGAIN; |
181 | |
445 | |
182 | fh = SvREFCNT_inc (POPs); |
446 | fh = SvREFCNT_inc (POPs); |
183 | |
447 | |
184 | PUSHMARK (SP); |
448 | PUSHMARK (SP); |
185 | XPUSHs (sv_2mortal (fh)); |
449 | XPUSHs (sv_2mortal (fh)); |
186 | } |
450 | } |
187 | |
|
|
188 | if (SvOK (req->callback)) |
|
|
189 | { |
451 | break; |
190 | PUTBACK; |
|
|
191 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
192 | SPAGAIN; |
|
|
193 | |
452 | |
194 | if (SvTRUE (ERRSV)) |
453 | case REQ_GROUP: |
|
|
454 | req->fd = 2; /* mark group as finished */ |
|
|
455 | |
|
|
456 | if (req->data) |
195 | { |
457 | { |
196 | free_req (req); |
458 | int i; |
197 | croak (0); |
459 | AV *av = (AV *)req->data; |
|
|
460 | |
|
|
461 | EXTEND (SP, AvFILL (av) + 1); |
|
|
462 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
463 | PUSHs (*av_fetch (av, i, 0)); |
198 | } |
464 | } |
199 | } |
465 | break; |
200 | |
466 | |
201 | LEAVE; |
467 | case REQ_NOP: |
|
|
468 | case REQ_BUSY: |
|
|
469 | break; |
202 | |
470 | |
203 | errno = errorno; |
471 | default: |
204 | count++; |
472 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
473 | break; |
205 | } |
474 | } |
206 | |
475 | |
|
|
476 | errno = req->errorno; |
|
|
477 | |
|
|
478 | PUTBACK; |
|
|
479 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
480 | SPAGAIN; |
|
|
481 | |
|
|
482 | FREETMPS; |
|
|
483 | LEAVE; |
|
|
484 | } |
|
|
485 | |
|
|
486 | if (req->grp) |
|
|
487 | { |
|
|
488 | aio_req grp = req->grp; |
|
|
489 | |
|
|
490 | /* unlink request */ |
|
|
491 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
492 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
493 | |
|
|
494 | if (grp->grp_first == req) |
|
|
495 | grp->grp_first = req->grp_next; |
|
|
496 | |
|
|
497 | aio_grp_dec (grp); |
|
|
498 | } |
|
|
499 | |
|
|
500 | if (SvTRUE (ERRSV)) |
|
|
501 | { |
207 | free_req (req); |
502 | req_free (req); |
|
|
503 | croak (0); |
|
|
504 | } |
|
|
505 | } |
|
|
506 | |
|
|
507 | static void req_free (aio_req req) |
|
|
508 | { |
|
|
509 | if (req->self) |
208 | } |
510 | { |
|
|
511 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
512 | SvREFCNT_dec (req->self); |
|
|
513 | } |
209 | |
514 | |
210 | return count; |
515 | SvREFCNT_dec (req->data); |
|
|
516 | SvREFCNT_dec (req->fh); |
|
|
517 | SvREFCNT_dec (req->fh2); |
|
|
518 | SvREFCNT_dec (req->callback); |
|
|
519 | Safefree (req->statdata); |
|
|
520 | |
|
|
521 | if (req->type == REQ_READDIR) |
|
|
522 | free (req->data2ptr); |
|
|
523 | |
|
|
524 | Safefree (req); |
|
|
525 | } |
|
|
526 | |
|
|
527 | static void req_cancel_subs (aio_req grp) |
|
|
528 | { |
|
|
529 | aio_req sub; |
|
|
530 | |
|
|
531 | if (grp->type != REQ_GROUP) |
|
|
532 | return; |
|
|
533 | |
|
|
534 | SvREFCNT_dec (grp->fh2); |
|
|
535 | grp->fh2 = 0; |
|
|
536 | |
|
|
537 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
538 | req_cancel (sub); |
|
|
539 | } |
|
|
540 | |
|
|
541 | static void req_cancel (aio_req req) |
|
|
542 | { |
|
|
543 | req->flags |= FLAG_CANCELLED; |
|
|
544 | |
|
|
545 | req_cancel_subs (req); |
211 | } |
546 | } |
212 | |
547 | |
213 | static void *aio_proc(void *arg); |
548 | static void *aio_proc(void *arg); |
214 | |
549 | |
215 | static void |
|
|
216 | start_thread (void) |
550 | static void start_thread (void) |
217 | { |
551 | { |
218 | sigset_t fullsigset, oldsigset; |
552 | sigset_t fullsigset, oldsigset; |
219 | pthread_t tid; |
|
|
220 | pthread_attr_t attr; |
553 | pthread_attr_t attr; |
|
|
554 | |
|
|
555 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
556 | |
|
|
557 | if (!wrk) |
|
|
558 | croak ("unable to allocate worker thread data"); |
221 | |
559 | |
222 | pthread_attr_init (&attr); |
560 | pthread_attr_init (&attr); |
223 | pthread_attr_setstacksize (&attr, STACKSIZE); |
561 | pthread_attr_setstacksize (&attr, STACKSIZE); |
224 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
562 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
563 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
564 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
565 | #endif |
225 | |
566 | |
226 | sigfillset (&fullsigset); |
567 | sigfillset (&fullsigset); |
|
|
568 | |
|
|
569 | LOCK (wrklock); |
227 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
570 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
228 | |
571 | |
229 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
572 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
573 | { |
|
|
574 | wrk->prev = &wrk_first; |
|
|
575 | wrk->next = wrk_first.next; |
|
|
576 | wrk_first.next->prev = wrk; |
|
|
577 | wrk_first.next = wrk; |
230 | started++; |
578 | ++started; |
|
|
579 | } |
|
|
580 | else |
|
|
581 | free (wrk); |
231 | |
582 | |
232 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
583 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
584 | UNLOCK (wrklock); |
233 | } |
585 | } |
234 | |
586 | |
235 | static void |
587 | static void maybe_start_thread () |
236 | send_req (aio_req req) |
|
|
237 | { |
588 | { |
238 | while (started < wanted && nreqs >= started) |
589 | if (get_nthreads () >= wanted) |
|
|
590 | return; |
|
|
591 | |
|
|
592 | /* todo: maybe use idle here, but might be less exact */ |
|
|
593 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
594 | return; |
|
|
595 | |
239 | start_thread (); |
596 | start_thread (); |
|
|
597 | } |
240 | |
598 | |
|
|
599 | static void req_send (aio_req req) |
|
|
600 | { |
241 | nreqs++; |
601 | ++nreqs; |
242 | |
602 | |
243 | pthread_mutex_lock (&reqlock); |
603 | LOCK (reqlock); |
244 | |
604 | ++nready; |
245 | req->next = 0; |
605 | reqq_push (&req_queue, req); |
246 | |
|
|
247 | if (reqe) |
|
|
248 | { |
|
|
249 | reqe->next = req; |
|
|
250 | reqe = req; |
|
|
251 | } |
|
|
252 | else |
|
|
253 | reqe = reqs = req; |
|
|
254 | |
|
|
255 | pthread_cond_signal (&reqwait); |
606 | pthread_cond_signal (&reqwait); |
256 | pthread_mutex_unlock (&reqlock); |
607 | UNLOCK (reqlock); |
257 | |
608 | |
258 | if (nreqs > max_outstanding) |
609 | maybe_start_thread (); |
259 | for (;;) |
|
|
260 | { |
|
|
261 | poll_cb (); |
|
|
262 | |
|
|
263 | if (nreqs <= max_outstanding) |
|
|
264 | break; |
|
|
265 | |
|
|
266 | poll_wait (); |
|
|
267 | } |
|
|
268 | } |
610 | } |
269 | |
611 | |
270 | static void |
612 | static void end_thread (void) |
271 | end_thread (void) |
|
|
272 | { |
613 | { |
273 | aio_req req; |
614 | aio_req req; |
|
|
615 | |
274 | Newz (0, req, 1, aio_cb); |
616 | Newz (0, req, 1, aio_cb); |
|
|
617 | |
275 | req->type = REQ_QUIT; |
618 | req->type = REQ_QUIT; |
|
|
619 | req->pri = PRI_MAX + PRI_BIAS; |
276 | |
620 | |
277 | send_req (req); |
621 | LOCK (reqlock); |
|
|
622 | reqq_push (&req_queue, req); |
|
|
623 | pthread_cond_signal (&reqwait); |
|
|
624 | UNLOCK (reqlock); |
|
|
625 | |
|
|
626 | LOCK (wrklock); |
|
|
627 | --started; |
|
|
628 | UNLOCK (wrklock); |
|
|
629 | } |
|
|
630 | |
|
|
631 | static void set_max_idle (int nthreads) |
|
|
632 | { |
|
|
633 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
634 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
635 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
278 | } |
636 | } |
279 | |
637 | |
280 | static void min_parallel (int nthreads) |
638 | static void min_parallel (int nthreads) |
281 | { |
639 | { |
282 | if (wanted < nthreads) |
640 | if (wanted < nthreads) |
283 | wanted = nthreads; |
641 | wanted = nthreads; |
284 | } |
642 | } |
285 | |
643 | |
286 | static void max_parallel (int nthreads) |
644 | static void max_parallel (int nthreads) |
287 | { |
645 | { |
288 | int cur = started; |
|
|
289 | |
|
|
290 | if (wanted > nthreads) |
646 | if (wanted > nthreads) |
291 | wanted = nthreads; |
647 | wanted = nthreads; |
292 | |
648 | |
293 | while (cur > wanted) |
|
|
294 | { |
|
|
295 | end_thread (); |
|
|
296 | cur--; |
|
|
297 | } |
|
|
298 | |
|
|
299 | while (started > wanted) |
649 | while (started > wanted) |
|
|
650 | end_thread (); |
|
|
651 | } |
|
|
652 | |
|
|
653 | static void poll_wait () |
|
|
654 | { |
|
|
655 | fd_set rfd; |
|
|
656 | |
|
|
657 | while (nreqs) |
|
|
658 | { |
|
|
659 | int size; |
|
|
660 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
661 | size = res_queue.size; |
|
|
662 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
663 | |
|
|
664 | if (size) |
|
|
665 | return; |
|
|
666 | |
|
|
667 | maybe_start_thread (); |
|
|
668 | |
|
|
669 | FD_ZERO(&rfd); |
|
|
670 | FD_SET(respipe [0], &rfd); |
|
|
671 | |
|
|
672 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
300 | { |
673 | } |
|
|
674 | } |
|
|
675 | |
|
|
676 | static int poll_cb () |
|
|
677 | { |
|
|
678 | dSP; |
|
|
679 | int count = 0; |
|
|
680 | int maxreqs = max_poll_reqs; |
|
|
681 | int do_croak = 0; |
|
|
682 | struct timeval tv_start, tv_now; |
|
|
683 | aio_req req; |
|
|
684 | |
|
|
685 | if (max_poll_time) |
|
|
686 | gettimeofday (&tv_start, 0); |
|
|
687 | |
|
|
688 | for (;;) |
|
|
689 | { |
|
|
690 | for (;;) |
|
|
691 | { |
|
|
692 | maybe_start_thread (); |
|
|
693 | |
|
|
694 | LOCK (reslock); |
|
|
695 | req = reqq_shift (&res_queue); |
|
|
696 | |
|
|
697 | if (req) |
|
|
698 | { |
|
|
699 | --npending; |
|
|
700 | |
|
|
701 | if (!res_queue.size) |
|
|
702 | { |
|
|
703 | /* read any signals sent by the worker threads */ |
|
|
704 | char buf [32]; |
|
|
705 | while (read (respipe [0], buf, 32) == 32) |
|
|
706 | ; |
|
|
707 | } |
|
|
708 | } |
|
|
709 | |
|
|
710 | UNLOCK (reslock); |
|
|
711 | |
|
|
712 | if (!req) |
|
|
713 | break; |
|
|
714 | |
|
|
715 | --nreqs; |
|
|
716 | |
|
|
717 | if (req->type == REQ_GROUP && req->length) |
|
|
718 | { |
|
|
719 | req->fd = 1; /* mark request as delayed */ |
|
|
720 | continue; |
|
|
721 | } |
|
|
722 | else |
|
|
723 | { |
|
|
724 | if (req->type == REQ_READ) |
|
|
725 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
726 | |
|
|
727 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
728 | SvREADONLY_off (req->data); |
|
|
729 | |
|
|
730 | if (req->statdata) |
|
|
731 | { |
|
|
732 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
733 | PL_laststatval = req->result; |
|
|
734 | PL_statcache = *(req->statdata); |
|
|
735 | } |
|
|
736 | |
|
|
737 | req_invoke (req); |
|
|
738 | |
|
|
739 | count++; |
|
|
740 | } |
|
|
741 | |
|
|
742 | req_free (req); |
|
|
743 | |
|
|
744 | if (maxreqs && !--maxreqs) |
|
|
745 | break; |
|
|
746 | |
|
|
747 | if (max_poll_time) |
|
|
748 | { |
|
|
749 | gettimeofday (&tv_now, 0); |
|
|
750 | |
|
|
751 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
752 | break; |
|
|
753 | } |
|
|
754 | } |
|
|
755 | |
|
|
756 | if (nreqs <= max_outstanding) |
|
|
757 | break; |
|
|
758 | |
301 | poll_wait (); |
759 | poll_wait (); |
302 | poll_cb (); |
760 | |
|
|
761 | ++maxreqs; |
303 | } |
762 | } |
|
|
763 | |
|
|
764 | return count; |
304 | } |
765 | } |
305 | |
766 | |
306 | static void create_pipe () |
767 | static void create_pipe () |
307 | { |
768 | { |
308 | if (pipe (respipe)) |
769 | if (pipe (respipe)) |
… | |
… | |
311 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
772 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
312 | croak ("cannot set result pipe to nonblocking mode"); |
773 | croak ("cannot set result pipe to nonblocking mode"); |
313 | |
774 | |
314 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
775 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
315 | croak ("cannot set result pipe to nonblocking mode"); |
776 | 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 | } |
777 | } |
360 | |
778 | |
361 | /*****************************************************************************/ |
779 | /*****************************************************************************/ |
362 | /* work around various missing functions */ |
780 | /* work around various missing functions */ |
363 | |
781 | |
… | |
… | |
368 | /* |
786 | /* |
369 | * make our pread/pwrite safe against themselves, but not against |
787 | * make our pread/pwrite safe against themselves, but not against |
370 | * normal read/write by using a mutex. slows down execution a lot, |
788 | * normal read/write by using a mutex. slows down execution a lot, |
371 | * but that's your problem, not mine. |
789 | * but that's your problem, not mine. |
372 | */ |
790 | */ |
373 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
791 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
374 | |
792 | |
375 | static ssize_t |
793 | 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 | { |
794 | { |
378 | ssize_t res; |
795 | ssize_t res; |
379 | off_t ooffset; |
796 | off_t ooffset; |
380 | |
797 | |
381 | pthread_mutex_lock (&iolock); |
798 | LOCK (preadwritelock); |
382 | ooffset = lseek (fd, 0, SEEK_CUR); |
799 | ooffset = lseek (fd, 0, SEEK_CUR); |
383 | lseek (fd, offset, SEEK_SET); |
800 | lseek (fd, offset, SEEK_SET); |
384 | res = read (fd, buf, count); |
801 | res = read (fd, buf, count); |
385 | lseek (fd, ooffset, SEEK_SET); |
802 | lseek (fd, ooffset, SEEK_SET); |
386 | pthread_mutex_unlock (&iolock); |
803 | UNLOCK (preadwritelock); |
387 | |
804 | |
388 | return res; |
805 | return res; |
389 | } |
806 | } |
390 | |
807 | |
391 | static ssize_t |
|
|
392 | pwrite (int fd, void *buf, size_t count, off_t offset) |
808 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
393 | { |
809 | { |
394 | ssize_t res; |
810 | ssize_t res; |
395 | off_t ooffset; |
811 | off_t ooffset; |
396 | |
812 | |
397 | pthread_mutex_lock (&iolock); |
813 | LOCK (preadwritelock); |
398 | ooffset = lseek (fd, 0, SEEK_CUR); |
814 | ooffset = lseek (fd, 0, SEEK_CUR); |
399 | lseek (fd, offset, SEEK_SET); |
815 | lseek (fd, offset, SEEK_SET); |
400 | res = write (fd, buf, count); |
816 | res = write (fd, buf, count); |
401 | lseek (fd, offset, SEEK_SET); |
817 | lseek (fd, offset, SEEK_SET); |
402 | pthread_mutex_unlock (&iolock); |
818 | UNLOCK (preadwritelock); |
403 | |
819 | |
404 | return res; |
820 | return res; |
405 | } |
821 | } |
406 | #endif |
822 | #endif |
407 | |
823 | |
408 | #if !HAVE_FDATASYNC |
824 | #if !HAVE_FDATASYNC |
409 | # define fdatasync fsync |
825 | # define fdatasync fsync |
410 | #endif |
826 | #endif |
411 | |
827 | |
412 | #if !HAVE_READAHEAD |
828 | #if !HAVE_READAHEAD |
413 | # define readahead aio_readahead |
829 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
414 | |
830 | |
415 | static char readahead_buf[4096]; |
831 | 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 | { |
832 | { |
|
|
833 | dBUF; |
|
|
834 | |
420 | while (count > 0) |
835 | while (count > 0) |
421 | { |
836 | { |
422 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
837 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
423 | |
838 | |
424 | pread (fd, readahead_buf, len, offset); |
839 | pread (fd, aio_buf, len, offset); |
425 | offset += len; |
840 | offset += len; |
426 | count -= len; |
841 | count -= len; |
427 | } |
842 | } |
428 | |
843 | |
429 | errno = 0; |
844 | errno = 0; |
430 | } |
845 | } |
|
|
846 | |
|
|
847 | #endif |
|
|
848 | |
|
|
849 | #if !HAVE_READDIR_R |
|
|
850 | # define readdir_r aio_readdir_r |
|
|
851 | |
|
|
852 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
853 | |
|
|
854 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
855 | { |
|
|
856 | struct dirent *e; |
|
|
857 | int errorno; |
|
|
858 | |
|
|
859 | LOCK (readdirlock); |
|
|
860 | |
|
|
861 | e = readdir (dirp); |
|
|
862 | errorno = errno; |
|
|
863 | |
|
|
864 | if (e) |
|
|
865 | { |
|
|
866 | *res = ent; |
|
|
867 | strcpy (ent->d_name, e->d_name); |
|
|
868 | } |
|
|
869 | else |
|
|
870 | *res = 0; |
|
|
871 | |
|
|
872 | UNLOCK (readdirlock); |
|
|
873 | |
|
|
874 | errno = errorno; |
|
|
875 | return e ? 0 : -1; |
|
|
876 | } |
431 | #endif |
877 | #endif |
432 | |
878 | |
433 | /* sendfile always needs emulation */ |
879 | /* sendfile always needs emulation */ |
434 | static ssize_t |
|
|
435 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
880 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
436 | { |
881 | { |
437 | ssize_t res; |
882 | ssize_t res; |
438 | |
883 | |
439 | if (!count) |
884 | if (!count) |
440 | return 0; |
885 | return 0; |
441 | |
886 | |
|
|
887 | #if HAVE_SENDFILE |
442 | #if __linux |
888 | # if __linux |
443 | res = sendfile (ofd, ifd, &offset, count); |
889 | res = sendfile (ofd, ifd, &offset, count); |
444 | |
890 | |
445 | #elif __freebsd |
891 | # elif __freebsd |
446 | /* |
892 | /* |
447 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
893 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
448 | * wasted on making it similar to other i/o functions. |
894 | * wasted on making it similar to other I/O functions. |
449 | */ |
895 | */ |
450 | { |
896 | { |
451 | off_t sbytes; |
897 | off_t sbytes; |
452 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
898 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
453 | |
899 | |
454 | if (!res && errno == EAGAIN) |
900 | if (res < 0 && sbytes) |
455 | /* maybe on others, too, as usual, the manpage leaves you guessing */ |
901 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
456 | res = sbytes; |
902 | res = sbytes; |
457 | } |
903 | } |
458 | |
904 | |
459 | #elif __hpux |
905 | # elif __hpux |
460 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
906 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
461 | |
907 | |
|
|
908 | # elif __solaris |
|
|
909 | { |
|
|
910 | struct sendfilevec vec; |
|
|
911 | size_t sbytes; |
|
|
912 | |
|
|
913 | vec.sfv_fd = ifd; |
|
|
914 | vec.sfv_flag = 0; |
|
|
915 | vec.sfv_off = offset; |
|
|
916 | vec.sfv_len = count; |
|
|
917 | |
|
|
918 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
919 | |
|
|
920 | if (res < 0 && sbytes) |
|
|
921 | res = sbytes; |
|
|
922 | } |
|
|
923 | |
|
|
924 | # endif |
462 | #else |
925 | #else |
463 | res = -1; |
926 | res = -1; |
464 | errno = ENOSYS; |
927 | errno = ENOSYS; |
465 | #endif |
928 | #endif |
466 | |
929 | |
|
|
930 | if (res < 0 |
467 | if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK)) |
931 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
932 | #if __solaris |
|
|
933 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
934 | #endif |
|
|
935 | ) |
|
|
936 | ) |
468 | { |
937 | { |
469 | /* emulate sendfile. this is a major pain in the ass */ |
938 | /* emulate sendfile. this is a major pain in the ass */ |
470 | char *buf = malloc (4096); |
939 | dBUF; |
|
|
940 | |
471 | res = 0; |
941 | res = 0; |
472 | |
942 | |
473 | for (;;) |
943 | while (count) |
474 | { |
944 | { |
475 | ssize_t cnt; |
945 | ssize_t cnt; |
476 | |
946 | |
477 | cnt = pread (ifd, buf, 4096, offset); |
947 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
478 | |
948 | |
479 | if (cnt <= 0) |
949 | if (cnt <= 0) |
480 | { |
950 | { |
481 | if (cnt && !res) res = -1; |
951 | if (cnt && !res) res = -1; |
482 | break; |
952 | break; |
483 | } |
953 | } |
484 | |
954 | |
485 | cnt = write (ofd, buf, cnt); |
955 | cnt = write (ofd, aio_buf, cnt); |
486 | |
956 | |
487 | if (cnt <= 0) |
957 | if (cnt <= 0) |
488 | { |
958 | { |
489 | if (cnt && !res) res = -1; |
959 | if (cnt && !res) res = -1; |
490 | break; |
960 | break; |
491 | } |
961 | } |
492 | |
962 | |
493 | offset += cnt; |
963 | offset += cnt; |
494 | res += cnt; |
964 | res += cnt; |
|
|
965 | count -= cnt; |
495 | } |
966 | } |
496 | |
|
|
497 | { |
|
|
498 | int errorno = errno; |
|
|
499 | free (buf); |
|
|
500 | errno = errorno; |
|
|
501 | } |
|
|
502 | } |
967 | } |
503 | |
968 | |
504 | return res; |
969 | return res; |
|
|
970 | } |
|
|
971 | |
|
|
972 | /* read a full directory */ |
|
|
973 | static void scandir_ (aio_req req, worker *self) |
|
|
974 | { |
|
|
975 | DIR *dirp; |
|
|
976 | union |
|
|
977 | { |
|
|
978 | struct dirent d; |
|
|
979 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
980 | } *u; |
|
|
981 | struct dirent *entp; |
|
|
982 | char *name, *names; |
|
|
983 | int memlen = 4096; |
|
|
984 | int memofs = 0; |
|
|
985 | int res = 0; |
|
|
986 | int errorno; |
|
|
987 | |
|
|
988 | LOCK (wrklock); |
|
|
989 | self->dirp = dirp = opendir (req->dataptr); |
|
|
990 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
991 | req->data2ptr = names = malloc (memlen); |
|
|
992 | UNLOCK (wrklock); |
|
|
993 | |
|
|
994 | if (dirp && u && names) |
|
|
995 | for (;;) |
|
|
996 | { |
|
|
997 | errno = 0; |
|
|
998 | readdir_r (dirp, &u->d, &entp); |
|
|
999 | |
|
|
1000 | if (!entp) |
|
|
1001 | break; |
|
|
1002 | |
|
|
1003 | name = entp->d_name; |
|
|
1004 | |
|
|
1005 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1006 | { |
|
|
1007 | int len = strlen (name) + 1; |
|
|
1008 | |
|
|
1009 | res++; |
|
|
1010 | |
|
|
1011 | while (memofs + len > memlen) |
|
|
1012 | { |
|
|
1013 | memlen *= 2; |
|
|
1014 | LOCK (wrklock); |
|
|
1015 | req->data2ptr = names = realloc (names, memlen); |
|
|
1016 | UNLOCK (wrklock); |
|
|
1017 | |
|
|
1018 | if (!names) |
|
|
1019 | break; |
|
|
1020 | } |
|
|
1021 | |
|
|
1022 | memcpy (names + memofs, name, len); |
|
|
1023 | memofs += len; |
|
|
1024 | } |
|
|
1025 | } |
|
|
1026 | |
|
|
1027 | if (errno) |
|
|
1028 | res = -1; |
|
|
1029 | |
|
|
1030 | req->result = res; |
505 | } |
1031 | } |
506 | |
1032 | |
507 | /*****************************************************************************/ |
1033 | /*****************************************************************************/ |
508 | |
1034 | |
509 | static void * |
|
|
510 | aio_proc (void *thr_arg) |
1035 | static void *aio_proc (void *thr_arg) |
511 | { |
1036 | { |
512 | aio_req req; |
1037 | aio_req req; |
513 | int type; |
1038 | struct timespec ts; |
|
|
1039 | worker *self = (worker *)thr_arg; |
514 | |
1040 | |
515 | do |
1041 | /* try to distribute timeouts somewhat evenly */ |
|
|
1042 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1043 | * (1000000000UL / 1024UL); |
|
|
1044 | |
|
|
1045 | for (;;) |
516 | { |
1046 | { |
517 | pthread_mutex_lock (&reqlock); |
1047 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1048 | |
|
|
1049 | LOCK (reqlock); |
518 | |
1050 | |
519 | for (;;) |
1051 | for (;;) |
520 | { |
1052 | { |
521 | req = reqs; |
1053 | self->req = req = reqq_shift (&req_queue); |
522 | |
|
|
523 | if (reqs) |
|
|
524 | { |
|
|
525 | reqs = reqs->next; |
|
|
526 | if (!reqs) reqe = 0; |
|
|
527 | } |
|
|
528 | |
1054 | |
529 | if (req) |
1055 | if (req) |
530 | break; |
1056 | break; |
531 | |
1057 | |
|
|
1058 | ++idle; |
|
|
1059 | |
|
|
1060 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1061 | == ETIMEDOUT) |
|
|
1062 | { |
|
|
1063 | if (idle > max_idle) |
|
|
1064 | { |
|
|
1065 | --idle; |
|
|
1066 | UNLOCK (reqlock); |
|
|
1067 | LOCK (wrklock); |
|
|
1068 | --started; |
|
|
1069 | UNLOCK (wrklock); |
|
|
1070 | goto quit; |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | /* we are allowed to idle, so do so without any timeout */ |
532 | pthread_cond_wait (&reqwait, &reqlock); |
1074 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1075 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | --idle; |
533 | } |
1079 | } |
534 | |
1080 | |
535 | pthread_mutex_unlock (&reqlock); |
1081 | --nready; |
|
|
1082 | |
|
|
1083 | UNLOCK (reqlock); |
536 | |
1084 | |
537 | errno = 0; /* strictly unnecessary */ |
1085 | errno = 0; /* strictly unnecessary */ |
538 | |
1086 | |
539 | type = req->type; |
1087 | if (!(req->flags & FLAG_CANCELLED)) |
540 | |
|
|
541 | switch (type) |
1088 | switch (req->type) |
542 | { |
1089 | { |
543 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1090 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
544 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1091 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
545 | |
1092 | |
546 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1093 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
547 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1094 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
548 | |
1095 | |
549 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1096 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
550 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1097 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
551 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1098 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
552 | |
1099 | |
553 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1100 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
554 | case REQ_CLOSE: req->result = close (req->fd); break; |
1101 | case REQ_CLOSE: req->result = close (req->fd); break; |
555 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1102 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
556 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1103 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
1104 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
1105 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
557 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1106 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
1107 | case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; |
558 | |
1108 | |
559 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1109 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
560 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1110 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
1111 | case REQ_READDIR: scandir_ (req, self); break; |
561 | |
1112 | |
|
|
1113 | case REQ_BUSY: |
|
|
1114 | { |
|
|
1115 | struct timeval tv; |
|
|
1116 | |
|
|
1117 | tv.tv_sec = req->fd; |
|
|
1118 | tv.tv_usec = req->fd2; |
|
|
1119 | |
|
|
1120 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1121 | } |
|
|
1122 | |
|
|
1123 | case REQ_GROUP: |
|
|
1124 | case REQ_NOP: |
|
|
1125 | break; |
|
|
1126 | |
562 | case REQ_QUIT: |
1127 | case REQ_QUIT: |
563 | break; |
1128 | goto quit; |
564 | |
1129 | |
565 | default: |
1130 | default: |
566 | req->result = ENOSYS; |
1131 | req->result = ENOSYS; |
567 | break; |
1132 | break; |
568 | } |
1133 | } |
569 | |
1134 | |
570 | req->errorno = errno; |
1135 | req->errorno = errno; |
571 | |
1136 | |
572 | pthread_mutex_lock (&reslock); |
1137 | LOCK (reslock); |
573 | |
1138 | |
574 | req->next = 0; |
1139 | ++npending; |
575 | |
1140 | |
576 | if (rese) |
1141 | if (!reqq_push (&res_queue, req)) |
577 | { |
|
|
578 | rese->next = req; |
|
|
579 | rese = req; |
|
|
580 | } |
|
|
581 | else |
|
|
582 | { |
|
|
583 | rese = ress = req; |
|
|
584 | |
|
|
585 | /* write a dummy byte to the pipe so fh becomes ready */ |
1142 | /* write a dummy byte to the pipe so fh becomes ready */ |
586 | write (respipe [1], &respipe, 1); |
1143 | write (respipe [1], &respipe, 1); |
587 | } |
|
|
588 | |
1144 | |
589 | pthread_mutex_unlock (&reslock); |
1145 | self->req = 0; |
|
|
1146 | worker_clear (self); |
|
|
1147 | |
|
|
1148 | UNLOCK (reslock); |
590 | } |
1149 | } |
591 | while (type != REQ_QUIT); |
1150 | |
|
|
1151 | quit: |
|
|
1152 | LOCK (wrklock); |
|
|
1153 | worker_free (self); |
|
|
1154 | UNLOCK (wrklock); |
592 | |
1155 | |
593 | return 0; |
1156 | return 0; |
|
|
1157 | } |
|
|
1158 | |
|
|
1159 | /*****************************************************************************/ |
|
|
1160 | |
|
|
1161 | static void atfork_prepare (void) |
|
|
1162 | { |
|
|
1163 | LOCK (wrklock); |
|
|
1164 | LOCK (reqlock); |
|
|
1165 | LOCK (reslock); |
|
|
1166 | #if !HAVE_PREADWRITE |
|
|
1167 | LOCK (preadwritelock); |
|
|
1168 | #endif |
|
|
1169 | #if !HAVE_READDIR_R |
|
|
1170 | LOCK (readdirlock); |
|
|
1171 | #endif |
|
|
1172 | } |
|
|
1173 | |
|
|
1174 | static void atfork_parent (void) |
|
|
1175 | { |
|
|
1176 | #if !HAVE_READDIR_R |
|
|
1177 | UNLOCK (readdirlock); |
|
|
1178 | #endif |
|
|
1179 | #if !HAVE_PREADWRITE |
|
|
1180 | UNLOCK (preadwritelock); |
|
|
1181 | #endif |
|
|
1182 | UNLOCK (reslock); |
|
|
1183 | UNLOCK (reqlock); |
|
|
1184 | UNLOCK (wrklock); |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | static void atfork_child (void) |
|
|
1188 | { |
|
|
1189 | aio_req prv; |
|
|
1190 | |
|
|
1191 | while (prv = reqq_shift (&req_queue)) |
|
|
1192 | req_free (prv); |
|
|
1193 | |
|
|
1194 | while (prv = reqq_shift (&res_queue)) |
|
|
1195 | req_free (prv); |
|
|
1196 | |
|
|
1197 | while (wrk_first.next != &wrk_first) |
|
|
1198 | { |
|
|
1199 | worker *wrk = wrk_first.next; |
|
|
1200 | |
|
|
1201 | if (wrk->req) |
|
|
1202 | req_free (wrk->req); |
|
|
1203 | |
|
|
1204 | worker_clear (wrk); |
|
|
1205 | worker_free (wrk); |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | started = 0; |
|
|
1209 | idle = 0; |
|
|
1210 | nreqs = 0; |
|
|
1211 | nready = 0; |
|
|
1212 | npending = 0; |
|
|
1213 | |
|
|
1214 | close (respipe [0]); |
|
|
1215 | close (respipe [1]); |
|
|
1216 | create_pipe (); |
|
|
1217 | |
|
|
1218 | atfork_parent (); |
594 | } |
1219 | } |
595 | |
1220 | |
596 | #define dREQ \ |
1221 | #define dREQ \ |
597 | aio_req req; \ |
1222 | aio_req req; \ |
|
|
1223 | int req_pri = next_pri; \ |
|
|
1224 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
598 | \ |
1225 | \ |
599 | if (SvOK (callback) && !SvROK (callback)) \ |
1226 | if (SvOK (callback) && !SvROK (callback)) \ |
600 | croak ("clalback must be undef or of reference type"); \ |
1227 | croak ("callback must be undef or of reference type"); \ |
601 | \ |
1228 | \ |
602 | Newz (0, req, 1, aio_cb); \ |
1229 | Newz (0, req, 1, aio_cb); \ |
603 | if (!req) \ |
1230 | if (!req) \ |
604 | croak ("out of memory during aio_req allocation"); \ |
1231 | croak ("out of memory during aio_req allocation"); \ |
605 | \ |
1232 | \ |
606 | req->callback = newSVsv (callback); |
1233 | req->callback = newSVsv (callback); \ |
|
|
1234 | req->pri = req_pri |
|
|
1235 | |
|
|
1236 | #define REQ_SEND \ |
|
|
1237 | req_send (req); \ |
|
|
1238 | \ |
|
|
1239 | if (GIMME_V != G_VOID) \ |
|
|
1240 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
607 | |
1241 | |
608 | MODULE = IO::AIO PACKAGE = IO::AIO |
1242 | MODULE = IO::AIO PACKAGE = IO::AIO |
609 | |
1243 | |
610 | PROTOTYPES: ENABLE |
1244 | PROTOTYPES: ENABLE |
611 | |
1245 | |
612 | BOOT: |
1246 | BOOT: |
613 | { |
1247 | { |
|
|
1248 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1249 | |
|
|
1250 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1251 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1252 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1253 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1254 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1255 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
|
|
1256 | |
614 | create_pipe (); |
1257 | create_pipe (); |
615 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1258 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
616 | } |
1259 | } |
617 | |
1260 | |
618 | void |
1261 | void |
619 | min_parallel(nthreads) |
1262 | max_poll_reqs (int nreqs) |
620 | int nthreads |
|
|
621 | PROTOTYPE: $ |
1263 | PROTOTYPE: $ |
|
|
1264 | CODE: |
|
|
1265 | max_poll_reqs = nreqs; |
622 | |
1266 | |
623 | void |
1267 | void |
624 | max_parallel(nthreads) |
1268 | max_poll_time (double nseconds) |
625 | int nthreads |
|
|
626 | PROTOTYPE: $ |
1269 | PROTOTYPE: $ |
|
|
1270 | CODE: |
|
|
1271 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1272 | |
|
|
1273 | void |
|
|
1274 | min_parallel (int nthreads) |
|
|
1275 | PROTOTYPE: $ |
|
|
1276 | |
|
|
1277 | void |
|
|
1278 | max_parallel (int nthreads) |
|
|
1279 | PROTOTYPE: $ |
|
|
1280 | |
|
|
1281 | void |
|
|
1282 | max_idle (int nthreads) |
|
|
1283 | PROTOTYPE: $ |
|
|
1284 | CODE: |
|
|
1285 | set_max_idle (nthreads); |
627 | |
1286 | |
628 | int |
1287 | int |
629 | max_outstanding(nreqs) |
1288 | max_outstanding (int maxreqs) |
630 | int nreqs |
1289 | PROTOTYPE: $ |
631 | PROTOTYPE: $ |
|
|
632 | CODE: |
1290 | CODE: |
633 | RETVAL = max_outstanding; |
1291 | RETVAL = max_outstanding; |
634 | max_outstanding = nreqs; |
1292 | max_outstanding = maxreqs; |
|
|
1293 | OUTPUT: |
|
|
1294 | RETVAL |
635 | |
1295 | |
636 | void |
1296 | void |
637 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1297 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
638 | SV * pathname |
1298 | SV * pathname |
639 | int flags |
1299 | int flags |
640 | int mode |
1300 | int mode |
641 | SV * callback |
1301 | SV * callback |
642 | PROTOTYPE: $$$;$ |
1302 | PROTOTYPE: $$$;$ |
643 | CODE: |
1303 | PPCODE: |
644 | { |
1304 | { |
645 | dREQ; |
1305 | dREQ; |
646 | |
1306 | |
647 | req->type = REQ_OPEN; |
1307 | req->type = REQ_OPEN; |
648 | req->data = newSVsv (pathname); |
1308 | req->data = newSVsv (pathname); |
649 | req->dataptr = SvPVbyte_nolen (req->data); |
1309 | req->dataptr = SvPVbyte_nolen (req->data); |
650 | req->fd = flags; |
1310 | req->fd = flags; |
651 | req->mode = mode; |
1311 | req->mode = mode; |
652 | |
1312 | |
653 | send_req (req); |
1313 | REQ_SEND; |
654 | } |
1314 | } |
655 | |
1315 | |
656 | void |
1316 | void |
657 | aio_close(fh,callback=&PL_sv_undef) |
1317 | aio_close (fh,callback=&PL_sv_undef) |
658 | SV * fh |
1318 | SV * fh |
659 | SV * callback |
1319 | SV * callback |
660 | PROTOTYPE: $;$ |
1320 | PROTOTYPE: $;$ |
661 | ALIAS: |
1321 | ALIAS: |
662 | aio_close = REQ_CLOSE |
1322 | aio_close = REQ_CLOSE |
663 | aio_fsync = REQ_FSYNC |
1323 | aio_fsync = REQ_FSYNC |
664 | aio_fdatasync = REQ_FDATASYNC |
1324 | aio_fdatasync = REQ_FDATASYNC |
665 | CODE: |
1325 | PPCODE: |
666 | { |
1326 | { |
667 | dREQ; |
1327 | dREQ; |
668 | |
1328 | |
669 | req->type = ix; |
1329 | req->type = ix; |
670 | req->fh = newSVsv (fh); |
1330 | req->fh = newSVsv (fh); |
671 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1331 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
672 | |
1332 | |
673 | send_req (req); |
1333 | REQ_SEND (req); |
674 | } |
1334 | } |
675 | |
1335 | |
676 | void |
1336 | void |
677 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1337 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
678 | SV * fh |
1338 | SV * fh |
679 | UV offset |
1339 | UV offset |
680 | UV length |
1340 | UV length |
681 | SV * data |
1341 | SV * data |
682 | UV dataoffset |
1342 | UV dataoffset |
683 | SV * callback |
1343 | SV * callback |
684 | ALIAS: |
1344 | ALIAS: |
685 | aio_read = REQ_READ |
1345 | aio_read = REQ_READ |
686 | aio_write = REQ_WRITE |
1346 | aio_write = REQ_WRITE |
687 | PROTOTYPE: $$$$$;$ |
1347 | PROTOTYPE: $$$$$;$ |
688 | CODE: |
1348 | PPCODE: |
689 | { |
1349 | { |
690 | aio_req req; |
1350 | aio_req req; |
691 | STRLEN svlen; |
1351 | STRLEN svlen; |
692 | char *svptr = SvPVbyte (data, svlen); |
1352 | char *svptr = SvPVbyte (data, svlen); |
693 | |
1353 | |
… | |
… | |
731 | { |
1391 | { |
732 | SvREADONLY_on (data); |
1392 | SvREADONLY_on (data); |
733 | req->data2ptr = (void *)data; |
1393 | req->data2ptr = (void *)data; |
734 | } |
1394 | } |
735 | |
1395 | |
736 | send_req (req); |
1396 | REQ_SEND; |
737 | } |
1397 | } |
738 | } |
1398 | } |
739 | |
1399 | |
740 | void |
1400 | void |
741 | aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1401 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
742 | SV * out_fh |
1402 | SV * out_fh |
743 | SV * in_fh |
1403 | SV * in_fh |
744 | UV in_offset |
1404 | UV in_offset |
745 | UV length |
1405 | UV length |
746 | SV * callback |
1406 | SV * callback |
747 | PROTOTYPE: $$$$;$ |
1407 | PROTOTYPE: $$$$;$ |
748 | CODE: |
1408 | PPCODE: |
749 | { |
1409 | { |
750 | dREQ; |
1410 | dREQ; |
751 | |
1411 | |
752 | req->type = REQ_SENDFILE; |
1412 | req->type = REQ_SENDFILE; |
753 | req->fh = newSVsv (out_fh); |
1413 | req->fh = newSVsv (out_fh); |
… | |
… | |
755 | req->fh2 = newSVsv (in_fh); |
1415 | req->fh2 = newSVsv (in_fh); |
756 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1416 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
757 | req->offset = in_offset; |
1417 | req->offset = in_offset; |
758 | req->length = length; |
1418 | req->length = length; |
759 | |
1419 | |
760 | send_req (req); |
1420 | REQ_SEND; |
761 | } |
1421 | } |
762 | |
1422 | |
763 | void |
1423 | void |
764 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1424 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
765 | SV * fh |
1425 | SV * fh |
766 | UV offset |
1426 | UV offset |
767 | IV length |
1427 | IV length |
768 | SV * callback |
1428 | SV * callback |
769 | PROTOTYPE: $$$;$ |
1429 | PROTOTYPE: $$$;$ |
770 | CODE: |
1430 | PPCODE: |
771 | { |
1431 | { |
772 | dREQ; |
1432 | dREQ; |
773 | |
1433 | |
774 | req->type = REQ_READAHEAD; |
1434 | req->type = REQ_READAHEAD; |
775 | req->fh = newSVsv (fh); |
1435 | req->fh = newSVsv (fh); |
776 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1436 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
777 | req->offset = offset; |
1437 | req->offset = offset; |
778 | req->length = length; |
1438 | req->length = length; |
779 | |
1439 | |
780 | send_req (req); |
1440 | REQ_SEND; |
781 | } |
1441 | } |
782 | |
1442 | |
783 | void |
1443 | void |
784 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1444 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
785 | SV * fh_or_path |
1445 | SV * fh_or_path |
786 | SV * callback |
1446 | SV * callback |
787 | ALIAS: |
1447 | ALIAS: |
788 | aio_stat = REQ_STAT |
1448 | aio_stat = REQ_STAT |
789 | aio_lstat = REQ_LSTAT |
1449 | aio_lstat = REQ_LSTAT |
790 | CODE: |
1450 | PPCODE: |
791 | { |
1451 | { |
792 | dREQ; |
1452 | dREQ; |
793 | |
1453 | |
794 | New (0, req->statdata, 1, Stat_t); |
1454 | New (0, req->statdata, 1, Stat_t); |
795 | if (!req->statdata) |
1455 | if (!req->statdata) |
796 | { |
1456 | { |
797 | free_req (req); |
1457 | req_free (req); |
798 | croak ("out of memory during aio_req->statdata allocation"); |
1458 | croak ("out of memory during aio_req->statdata allocation"); |
799 | } |
1459 | } |
800 | |
1460 | |
801 | if (SvPOK (fh_or_path)) |
1461 | if (SvPOK (fh_or_path)) |
802 | { |
1462 | { |
… | |
… | |
809 | req->type = REQ_FSTAT; |
1469 | req->type = REQ_FSTAT; |
810 | req->fh = newSVsv (fh_or_path); |
1470 | req->fh = newSVsv (fh_or_path); |
811 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1471 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
812 | } |
1472 | } |
813 | |
1473 | |
814 | send_req (req); |
1474 | REQ_SEND; |
815 | } |
1475 | } |
816 | |
1476 | |
817 | void |
1477 | void |
818 | aio_unlink(pathname,callback=&PL_sv_undef) |
1478 | aio_unlink (pathname,callback=&PL_sv_undef) |
819 | SV * pathname |
1479 | SV * pathname |
820 | SV * callback |
1480 | SV * callback |
821 | ALIAS: |
1481 | ALIAS: |
822 | aio_unlink = REQ_UNLINK |
1482 | aio_unlink = REQ_UNLINK |
823 | aio_rmdir = REQ_RMDIR |
1483 | aio_rmdir = REQ_RMDIR |
|
|
1484 | aio_readdir = REQ_READDIR |
824 | CODE: |
1485 | PPCODE: |
825 | { |
1486 | { |
826 | dREQ; |
1487 | dREQ; |
827 | |
1488 | |
828 | req->type = ix; |
1489 | req->type = ix; |
829 | req->data = newSVsv (pathname); |
1490 | req->data = newSVsv (pathname); |
830 | req->dataptr = SvPVbyte_nolen (req->data); |
1491 | req->dataptr = SvPVbyte_nolen (req->data); |
831 | |
1492 | |
832 | send_req (req); |
1493 | REQ_SEND; |
833 | } |
1494 | } |
834 | |
1495 | |
835 | void |
1496 | void |
836 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1497 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
837 | SV * oldpath |
1498 | SV * oldpath |
838 | SV * newpath |
1499 | SV * newpath |
839 | SV * callback |
1500 | SV * callback |
|
|
1501 | ALIAS: |
|
|
1502 | aio_link = REQ_LINK |
|
|
1503 | aio_symlink = REQ_SYMLINK |
|
|
1504 | aio_rename = REQ_RENAME |
840 | CODE: |
1505 | PPCODE: |
841 | { |
1506 | { |
842 | dREQ; |
1507 | dREQ; |
843 | |
1508 | |
844 | req->type = REQ_SYMLINK; |
1509 | req->type = ix; |
845 | req->fh = newSVsv (oldpath); |
1510 | req->fh = newSVsv (oldpath); |
846 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1511 | req->data2ptr = SvPVbyte_nolen (req->fh); |
847 | req->data = newSVsv (newpath); |
1512 | req->data = newSVsv (newpath); |
848 | req->dataptr = SvPVbyte_nolen (req->data); |
1513 | req->dataptr = SvPVbyte_nolen (req->data); |
849 | |
1514 | |
850 | send_req (req); |
1515 | REQ_SEND; |
851 | } |
1516 | } |
852 | |
1517 | |
853 | void |
1518 | void |
|
|
1519 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1520 | SV * pathname |
|
|
1521 | SV * callback |
|
|
1522 | UV mode |
|
|
1523 | UV dev |
|
|
1524 | PPCODE: |
|
|
1525 | { |
|
|
1526 | dREQ; |
|
|
1527 | |
|
|
1528 | req->type = REQ_MKNOD; |
|
|
1529 | req->data = newSVsv (pathname); |
|
|
1530 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1531 | req->mode = (mode_t)mode; |
|
|
1532 | req->offset = dev; |
|
|
1533 | |
|
|
1534 | REQ_SEND; |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | void |
|
|
1538 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1539 | double delay |
|
|
1540 | SV * callback |
|
|
1541 | PPCODE: |
|
|
1542 | { |
|
|
1543 | dREQ; |
|
|
1544 | |
|
|
1545 | req->type = REQ_BUSY; |
|
|
1546 | req->fd = delay < 0. ? 0 : delay; |
|
|
1547 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1548 | |
|
|
1549 | REQ_SEND; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | void |
|
|
1553 | aio_group (callback=&PL_sv_undef) |
|
|
1554 | SV * callback |
|
|
1555 | PROTOTYPE: ;$ |
|
|
1556 | PPCODE: |
|
|
1557 | { |
|
|
1558 | dREQ; |
|
|
1559 | |
|
|
1560 | req->type = REQ_GROUP; |
|
|
1561 | req_send (req); |
|
|
1562 | |
|
|
1563 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1564 | } |
|
|
1565 | |
|
|
1566 | void |
|
|
1567 | aio_nop (callback=&PL_sv_undef) |
|
|
1568 | SV * callback |
|
|
1569 | PPCODE: |
|
|
1570 | { |
|
|
1571 | dREQ; |
|
|
1572 | |
|
|
1573 | req->type = REQ_NOP; |
|
|
1574 | |
|
|
1575 | REQ_SEND; |
|
|
1576 | } |
|
|
1577 | |
|
|
1578 | int |
|
|
1579 | aioreq_pri (int pri = 0) |
|
|
1580 | PROTOTYPE: ;$ |
|
|
1581 | CODE: |
|
|
1582 | RETVAL = next_pri - PRI_BIAS; |
|
|
1583 | if (items > 0) |
|
|
1584 | { |
|
|
1585 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1586 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1587 | next_pri = pri + PRI_BIAS; |
|
|
1588 | } |
|
|
1589 | OUTPUT: |
|
|
1590 | RETVAL |
|
|
1591 | |
|
|
1592 | void |
|
|
1593 | aioreq_nice (int nice = 0) |
|
|
1594 | CODE: |
|
|
1595 | nice = next_pri - nice; |
|
|
1596 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1597 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1598 | next_pri = nice + PRI_BIAS; |
|
|
1599 | |
|
|
1600 | void |
854 | flush() |
1601 | flush () |
855 | PROTOTYPE: |
1602 | PROTOTYPE: |
856 | CODE: |
1603 | CODE: |
857 | while (nreqs) |
1604 | while (nreqs) |
858 | { |
1605 | { |
859 | poll_wait (); |
1606 | poll_wait (); |
860 | poll_cb (); |
1607 | poll_cb (0); |
861 | } |
1608 | } |
862 | |
1609 | |
863 | void |
1610 | void |
864 | poll() |
1611 | poll() |
865 | PROTOTYPE: |
1612 | PROTOTYPE: |
866 | CODE: |
1613 | CODE: |
867 | if (nreqs) |
1614 | if (nreqs) |
868 | { |
1615 | { |
869 | poll_wait (); |
1616 | poll_wait (); |
870 | poll_cb (); |
1617 | poll_cb (0); |
871 | } |
1618 | } |
872 | |
1619 | |
873 | int |
1620 | int |
874 | poll_fileno() |
1621 | poll_fileno() |
875 | PROTOTYPE: |
1622 | PROTOTYPE: |
… | |
… | |
899 | CODE: |
1646 | CODE: |
900 | RETVAL = nreqs; |
1647 | RETVAL = nreqs; |
901 | OUTPUT: |
1648 | OUTPUT: |
902 | RETVAL |
1649 | RETVAL |
903 | |
1650 | |
|
|
1651 | int |
|
|
1652 | nready() |
|
|
1653 | PROTOTYPE: |
|
|
1654 | CODE: |
|
|
1655 | RETVAL = get_nready (); |
|
|
1656 | OUTPUT: |
|
|
1657 | RETVAL |
|
|
1658 | |
|
|
1659 | int |
|
|
1660 | npending() |
|
|
1661 | PROTOTYPE: |
|
|
1662 | CODE: |
|
|
1663 | RETVAL = get_npending (); |
|
|
1664 | OUTPUT: |
|
|
1665 | RETVAL |
|
|
1666 | |
|
|
1667 | int |
|
|
1668 | nthreads() |
|
|
1669 | PROTOTYPE: |
|
|
1670 | CODE: |
|
|
1671 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1672 | RETVAL = started; |
|
|
1673 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1674 | OUTPUT: |
|
|
1675 | RETVAL |
|
|
1676 | |
|
|
1677 | PROTOTYPES: DISABLE |
|
|
1678 | |
|
|
1679 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1680 | |
|
|
1681 | void |
|
|
1682 | cancel (aio_req_ornot req) |
|
|
1683 | CODE: |
|
|
1684 | req_cancel (req); |
|
|
1685 | |
|
|
1686 | void |
|
|
1687 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1688 | CODE: |
|
|
1689 | SvREFCNT_dec (req->callback); |
|
|
1690 | req->callback = newSVsv (callback); |
|
|
1691 | |
|
|
1692 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1693 | |
|
|
1694 | void |
|
|
1695 | add (aio_req grp, ...) |
|
|
1696 | PPCODE: |
|
|
1697 | { |
|
|
1698 | int i; |
|
|
1699 | aio_req req; |
|
|
1700 | |
|
|
1701 | if (grp->fd == 2) |
|
|
1702 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1703 | |
|
|
1704 | for (i = 1; i < items; ++i ) |
|
|
1705 | { |
|
|
1706 | if (GIMME_V != G_VOID) |
|
|
1707 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1708 | |
|
|
1709 | req = SvAIO_REQ (ST (i)); |
|
|
1710 | |
|
|
1711 | if (req) |
|
|
1712 | { |
|
|
1713 | ++grp->length; |
|
|
1714 | req->grp = grp; |
|
|
1715 | |
|
|
1716 | req->grp_prev = 0; |
|
|
1717 | req->grp_next = grp->grp_first; |
|
|
1718 | |
|
|
1719 | if (grp->grp_first) |
|
|
1720 | grp->grp_first->grp_prev = req; |
|
|
1721 | |
|
|
1722 | grp->grp_first = req; |
|
|
1723 | } |
|
|
1724 | } |
|
|
1725 | } |
|
|
1726 | |
|
|
1727 | void |
|
|
1728 | cancel_subs (aio_req_ornot req) |
|
|
1729 | CODE: |
|
|
1730 | req_cancel_subs (req); |
|
|
1731 | |
|
|
1732 | void |
|
|
1733 | result (aio_req grp, ...) |
|
|
1734 | CODE: |
|
|
1735 | { |
|
|
1736 | int i; |
|
|
1737 | AV *av; |
|
|
1738 | |
|
|
1739 | grp->errorno = errno; |
|
|
1740 | |
|
|
1741 | av = newAV (); |
|
|
1742 | |
|
|
1743 | for (i = 1; i < items; ++i ) |
|
|
1744 | av_push (av, newSVsv (ST (i))); |
|
|
1745 | |
|
|
1746 | SvREFCNT_dec (grp->data); |
|
|
1747 | grp->data = (SV *)av; |
|
|
1748 | } |
|
|
1749 | |
|
|
1750 | void |
|
|
1751 | errno (aio_req grp, int errorno = errno) |
|
|
1752 | CODE: |
|
|
1753 | grp->errorno = errorno; |
|
|
1754 | |
|
|
1755 | void |
|
|
1756 | limit (aio_req grp, int limit) |
|
|
1757 | CODE: |
|
|
1758 | grp->fd2 = limit; |
|
|
1759 | aio_grp_feed (grp); |
|
|
1760 | |
|
|
1761 | void |
|
|
1762 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1763 | CODE: |
|
|
1764 | { |
|
|
1765 | SvREFCNT_dec (grp->fh2); |
|
|
1766 | grp->fh2 = newSVsv (callback); |
|
|
1767 | |
|
|
1768 | if (grp->fd2 <= 0) |
|
|
1769 | grp->fd2 = 2; |
|
|
1770 | |
|
|
1771 | aio_grp_feed (grp); |
|
|
1772 | } |
|
|
1773 | |