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1 | /* solaris */ |
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2 | #define _POSIX_PTHREAD_SEMANTICS 1 |
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3 | |
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4 | #if __linux && !defined(_GNU_SOURCE) |
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5 | # define _GNU_SOURCE |
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6 | #endif |
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7 | |
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8 | /* just in case */ |
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9 | #define _REENTRANT 1 |
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10 | |
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11 | #include <errno.h> |
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12 | |
1 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
2 | #include "perl.h" |
14 | #include "perl.h" |
3 | #include "XSUB.h" |
15 | #include "XSUB.h" |
4 | |
16 | |
5 | #include "autoconf/config.h" |
17 | #include "autoconf/config.h" |
6 | |
18 | |
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19 | #include <pthread.h> |
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20 | |
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21 | #include <stddef.h> |
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22 | #include <errno.h> |
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23 | #include <sys/time.h> |
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24 | #include <sys/select.h> |
7 | #include <sys/types.h> |
25 | #include <sys/types.h> |
8 | #include <sys/stat.h> |
26 | #include <sys/stat.h> |
9 | |
27 | #include <limits.h> |
10 | #include <unistd.h> |
28 | #include <unistd.h> |
11 | #include <fcntl.h> |
29 | #include <fcntl.h> |
12 | #include <signal.h> |
30 | #include <signal.h> |
13 | #include <sched.h> |
31 | #include <sched.h> |
14 | |
32 | |
15 | #ifndef _REENTRANT |
33 | #if HAVE_SENDFILE |
16 | # define _REENTRANT 1 |
34 | # if __linux |
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35 | # include <sys/sendfile.h> |
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36 | # elif __freebsd |
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37 | # include <sys/socket.h> |
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38 | # include <sys/uio.h> |
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39 | # elif __hpux |
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40 | # include <sys/socket.h> |
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41 | # elif __solaris /* not yet */ |
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42 | # include <sys/sendfile.h> |
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43 | # else |
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44 | # error sendfile support requested but not available |
17 | #endif |
45 | # endif |
18 | #include <errno.h> |
46 | #endif |
19 | |
47 | |
20 | #include <pthread.h> |
48 | /* number of seconds after which idle threads exit */ |
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49 | #define IDLE_TIMEOUT 10 |
21 | |
50 | |
22 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
51 | /* used for struct dirent, AIX doesn't provide it */ |
23 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
52 | #ifndef NAME_MAX |
24 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
53 | # define NAME_MAX 4096 |
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54 | #endif |
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55 | |
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56 | #ifndef PTHREAD_STACK_MIN |
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57 | /* care for broken platforms, e.g. windows */ |
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58 | # define PTHREAD_STACK_MIN 16384 |
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59 | #endif |
25 | |
60 | |
26 | #if __ia64 |
61 | #if __ia64 |
27 | # define STACKSIZE 65536 |
62 | # define STACKSIZE 65536 |
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63 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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64 | # define STACKSIZE PTHREAD_STACK_MIN |
28 | #else |
65 | #else |
29 | # define STACKSIZE 4096 |
66 | # define STACKSIZE 16384 |
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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 WORDREAD_UNSAFE |
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74 | # if __i386 || __x86_64 |
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75 | # define WORDREAD_UNSAFE 0 |
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76 | # else |
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77 | # define WORDREAD_UNSAFE 1 |
30 | #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; |
31 | |
91 | |
32 | enum { |
92 | enum { |
33 | REQ_QUIT, |
93 | REQ_QUIT, |
34 | REQ_OPEN, REQ_CLOSE, |
94 | REQ_OPEN, REQ_CLOSE, |
35 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
95 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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96 | REQ_SENDFILE, |
36 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
97 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
37 | REQ_FSYNC, REQ_FDATASYNC, |
98 | REQ_FSYNC, REQ_FDATASYNC, |
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99 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
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100 | REQ_MKNOD, REQ_READDIR, |
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101 | REQ_LINK, REQ_SYMLINK, |
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102 | REQ_GROUP, REQ_NOP, |
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103 | REQ_BUSY, |
38 | }; |
104 | }; |
39 | |
105 | |
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106 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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107 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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108 | |
40 | typedef struct aio_cb { |
109 | typedef struct aio_cb |
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110 | { |
41 | struct aio_cb *volatile next; |
111 | struct aio_cb *volatile next; |
42 | |
112 | |
43 | int type; |
113 | SV *data, *callback; |
44 | |
114 | SV *fh, *fh2; |
45 | int fd; |
115 | void *dataptr, *data2ptr; |
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116 | Stat_t *statdata; |
46 | off_t offset; |
117 | off_t offset; |
47 | size_t length; |
118 | size_t length; |
48 | 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; |
49 | mode_t mode; /* open */ |
125 | mode_t mode; /* open */ |
50 | int errorno; |
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51 | SV *data, *callback, *fh; |
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52 | void *dataptr; |
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53 | STRLEN dataoffset; |
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54 | |
126 | |
55 | Stat_t *statdata; |
127 | unsigned char flags; |
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128 | unsigned char pri; |
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129 | |
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130 | SV *self; /* the perl counterpart of this request, if any */ |
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131 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
56 | } aio_cb; |
132 | } aio_cb; |
57 | |
133 | |
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134 | enum { |
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135 | FLAG_CANCELLED = 0x01, |
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136 | }; |
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137 | |
58 | typedef aio_cb *aio_req; |
138 | typedef aio_cb *aio_req; |
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139 | typedef aio_cb *aio_req_ornot; |
59 | |
140 | |
60 | static int started; |
141 | enum { |
61 | static volatile int nreqs; |
142 | PRI_MIN = -4, |
62 | static int max_outstanding = 1<<30; |
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 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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151 | |
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152 | static unsigned int started, idle, wanted; |
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153 | |
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154 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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155 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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156 | #else |
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157 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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158 | #endif |
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159 | |
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160 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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161 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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162 | |
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163 | /* worker threads management */ |
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164 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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165 | |
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166 | typedef struct worker { |
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167 | /* locked by wrklock */ |
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168 | struct worker *prev, *next; |
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169 | |
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170 | pthread_t tid; |
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171 | |
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172 | /* locked by reslock, reqlock or wrklock */ |
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173 | aio_req req; /* currently processed request */ |
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174 | void *dbuf; |
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175 | DIR *dirp; |
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176 | } worker; |
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177 | |
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178 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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179 | |
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180 | static void worker_clear (worker *wrk) |
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181 | { |
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182 | if (wrk->dirp) |
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183 | { |
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184 | closedir (wrk->dirp); |
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185 | wrk->dirp = 0; |
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186 | } |
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187 | |
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188 | if (wrk->dbuf) |
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189 | { |
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190 | free (wrk->dbuf); |
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191 | wrk->dbuf = 0; |
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192 | } |
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193 | } |
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194 | |
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195 | static void worker_free (worker *wrk) |
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196 | { |
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197 | wrk->next->prev = wrk->prev; |
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198 | wrk->prev->next = wrk->next; |
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199 | |
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200 | free (wrk); |
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201 | } |
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202 | |
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203 | static volatile unsigned int nreqs, nready, npending; |
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204 | static volatile unsigned int max_idle = 4; |
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205 | static volatile unsigned int max_outstanding = 0xffffffff; |
63 | static int respipe [2]; |
206 | static int respipe [2]; |
64 | |
207 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
208 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
209 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
67 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
210 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
68 | |
211 | |
69 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
212 | #if WORDREAD_UNSAFE |
70 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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71 | |
213 | |
72 | static void |
214 | static unsigned int get_nready () |
73 | poll_wait () |
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74 | { |
215 | { |
75 | if (nreqs && !ress) |
216 | unsigned int retval; |
76 | { |
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77 | fd_set rfd; |
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78 | FD_ZERO(&rfd); |
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79 | FD_SET(respipe [0], &rfd); |
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80 | |
217 | |
81 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
218 | LOCK (reqlock); |
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219 | retval = nready; |
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220 | UNLOCK (reqlock); |
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221 | |
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222 | return retval; |
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223 | } |
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224 | |
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225 | static unsigned int get_npending () |
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226 | { |
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227 | unsigned int retval; |
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228 | |
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229 | LOCK (reslock); |
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230 | retval = npending; |
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231 | UNLOCK (reslock); |
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232 | |
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233 | return retval; |
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234 | } |
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235 | |
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236 | #else |
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237 | |
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238 | # define get_nready() nready |
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239 | # define get_npending() npending |
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240 | |
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241 | #endif |
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242 | |
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243 | /* |
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244 | * a somewhat faster data structure might be nice, but |
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245 | * with 8 priorities this actually needs <20 insns |
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246 | * per shift, the most expensive operation. |
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247 | */ |
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248 | typedef struct { |
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249 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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250 | int size; |
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251 | } reqq; |
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252 | |
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253 | static reqq req_queue; |
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254 | static reqq res_queue; |
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255 | |
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256 | int reqq_push (reqq *q, aio_req req) |
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257 | { |
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258 | int pri = req->pri; |
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259 | req->next = 0; |
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260 | |
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261 | if (q->qe[pri]) |
82 | } |
262 | { |
83 | } |
263 | q->qe[pri]->next = req; |
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264 | q->qe[pri] = req; |
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265 | } |
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266 | else |
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267 | q->qe[pri] = q->qs[pri] = req; |
84 | |
268 | |
85 | static int |
269 | return q->size++; |
86 | poll_cb () |
270 | } |
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271 | |
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272 | aio_req reqq_shift (reqq *q) |
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273 | { |
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274 | int pri; |
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275 | |
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276 | if (!q->size) |
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277 | return 0; |
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278 | |
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279 | --q->size; |
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280 | |
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281 | for (pri = NUM_PRI; pri--; ) |
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282 | { |
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283 | aio_req req = q->qs[pri]; |
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284 | |
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285 | if (req) |
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286 | { |
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287 | if (!(q->qs[pri] = req->next)) |
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288 | q->qe[pri] = 0; |
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289 | |
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290 | return req; |
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291 | } |
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292 | } |
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293 | |
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294 | abort (); |
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295 | } |
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296 | |
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297 | static int poll_cb (int max); |
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298 | static void req_invoke (aio_req req); |
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299 | static void req_free (aio_req req); |
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300 | static void req_cancel (aio_req req); |
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301 | |
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302 | /* must be called at most once */ |
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303 | static SV *req_sv (aio_req req, const char *klass) |
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304 | { |
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305 | if (!req->self) |
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306 | { |
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307 | req->self = (SV *)newHV (); |
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308 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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309 | } |
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310 | |
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311 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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312 | } |
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313 | |
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314 | static aio_req SvAIO_REQ (SV *sv) |
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315 | { |
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316 | MAGIC *mg; |
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317 | |
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318 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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319 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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320 | |
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321 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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322 | |
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323 | return mg ? (aio_req)mg->mg_ptr : 0; |
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324 | } |
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325 | |
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326 | static void aio_grp_feed (aio_req grp) |
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327 | { |
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328 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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329 | { |
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330 | int old_len = grp->length; |
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331 | |
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332 | if (grp->fh2 && SvOK (grp->fh2)) |
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333 | { |
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334 | dSP; |
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335 | |
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336 | ENTER; |
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337 | SAVETMPS; |
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338 | PUSHMARK (SP); |
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339 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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340 | PUTBACK; |
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341 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
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342 | SPAGAIN; |
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343 | FREETMPS; |
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344 | LEAVE; |
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345 | } |
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346 | |
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347 | /* stop if no progress has been made */ |
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348 | if (old_len == grp->length) |
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349 | { |
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350 | SvREFCNT_dec (grp->fh2); |
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351 | grp->fh2 = 0; |
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352 | break; |
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353 | } |
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354 | } |
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355 | } |
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356 | |
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357 | static void aio_grp_dec (aio_req grp) |
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358 | { |
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359 | --grp->length; |
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360 | |
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361 | /* call feeder, if applicable */ |
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362 | aio_grp_feed (grp); |
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363 | |
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364 | /* finish, if done */ |
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365 | if (!grp->length && grp->fd) |
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366 | { |
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367 | req_invoke (grp); |
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368 | req_free (grp); |
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369 | } |
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370 | } |
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371 | |
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372 | static void req_invoke (aio_req req) |
87 | { |
373 | { |
88 | dSP; |
374 | dSP; |
89 | int count = 0; |
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90 | aio_req req, prv; |
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91 | |
375 | |
92 | pthread_mutex_lock (&reslock); |
376 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
93 | |
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94 | { |
377 | { |
95 | /* read any signals sent by the worker threads */ |
378 | ENTER; |
96 | char buf [32]; |
379 | SAVETMPS; |
97 | while (read (respipe [0], buf, 32) > 0) |
380 | PUSHMARK (SP); |
98 | ; |
381 | EXTEND (SP, 1); |
99 | } |
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100 | |
382 | |
101 | req = ress; |
383 | switch (req->type) |
102 | ress = rese = 0; |
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103 | |
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104 | pthread_mutex_unlock (&reslock); |
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105 | |
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106 | while (req) |
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107 | { |
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108 | nreqs--; |
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109 | |
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110 | if (req->type == REQ_QUIT) |
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111 | started--; |
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112 | else |
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113 | { |
384 | { |
114 | int errorno = errno; |
385 | case REQ_READDIR: |
115 | errno = req->errorno; |
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116 | |
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117 | if (req->type == REQ_READ) |
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118 | SvCUR_set (req->data, req->dataoffset |
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119 | + req->result > 0 ? req->result : 0); |
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120 | |
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121 | if (req->data) |
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122 | SvREFCNT_dec (req->data); |
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123 | |
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124 | if (req->fh) |
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125 | SvREFCNT_dec (req->fh); |
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126 | |
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127 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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128 | { |
386 | { |
129 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
387 | SV *rv = &PL_sv_undef; |
130 | PL_laststatval = req->result; |
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131 | PL_statcache = *(req->statdata); |
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132 | |
388 | |
133 | Safefree (req->statdata); |
389 | if (req->result >= 0) |
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390 | { |
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391 | int i; |
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392 | char *buf = req->data2ptr; |
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393 | AV *av = newAV (); |
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394 | |
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395 | av_extend (av, req->result - 1); |
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396 | |
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397 | for (i = 0; i < req->result; ++i) |
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398 | { |
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399 | SV *sv = newSVpv (buf, 0); |
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400 | |
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401 | av_store (av, i, sv); |
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402 | buf += SvCUR (sv) + 1; |
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403 | } |
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404 | |
|
|
405 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
406 | } |
|
|
407 | |
|
|
408 | PUSHs (rv); |
134 | } |
409 | } |
|
|
410 | break; |
135 | |
411 | |
136 | ENTER; |
412 | case REQ_OPEN: |
137 | PUSHMARK (SP); |
|
|
138 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
139 | |
|
|
140 | if (req->type == REQ_OPEN) |
|
|
141 | { |
413 | { |
142 | /* convert fd to fh */ |
414 | /* convert fd to fh */ |
143 | SV *fh; |
415 | SV *fh; |
144 | |
416 | |
|
|
417 | PUSHs (sv_2mortal (newSViv (req->result))); |
145 | PUTBACK; |
418 | PUTBACK; |
146 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
419 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
147 | SPAGAIN; |
420 | SPAGAIN; |
148 | |
421 | |
149 | fh = SvREFCNT_inc (POPs); |
422 | fh = SvREFCNT_inc (POPs); |
150 | |
423 | |
151 | PUSHMARK (SP); |
424 | PUSHMARK (SP); |
152 | XPUSHs (sv_2mortal (fh)); |
425 | XPUSHs (sv_2mortal (fh)); |
153 | } |
426 | } |
|
|
427 | break; |
154 | |
428 | |
155 | if (SvOK (req->callback)) |
429 | case REQ_GROUP: |
|
|
430 | req->fd = 2; /* mark group as finished */ |
|
|
431 | |
|
|
432 | if (req->data) |
156 | { |
433 | { |
157 | PUTBACK; |
434 | int i; |
158 | call_sv (req->callback, G_VOID | G_EVAL); |
435 | AV *av = (AV *)req->data; |
159 | SPAGAIN; |
436 | |
|
|
437 | EXTEND (SP, AvFILL (av) + 1); |
|
|
438 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
439 | PUSHs (*av_fetch (av, i, 0)); |
160 | } |
440 | } |
|
|
441 | break; |
161 | |
442 | |
162 | LEAVE; |
443 | case REQ_NOP: |
163 | |
444 | case REQ_BUSY: |
164 | if (req->callback) |
445 | break; |
165 | SvREFCNT_dec (req->callback); |
|
|
166 | |
446 | |
167 | errno = errorno; |
447 | default: |
168 | count++; |
448 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
449 | break; |
169 | } |
450 | } |
170 | |
451 | |
171 | prv = req; |
452 | errno = req->errorno; |
172 | req = req->next; |
|
|
173 | Safefree (prv); |
|
|
174 | |
453 | |
175 | /* TODO: croak on errors? */ |
454 | PUTBACK; |
|
|
455 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
456 | SPAGAIN; |
|
|
457 | |
|
|
458 | FREETMPS; |
|
|
459 | LEAVE; |
|
|
460 | } |
|
|
461 | |
|
|
462 | if (req->grp) |
176 | } |
463 | { |
|
|
464 | aio_req grp = req->grp; |
177 | |
465 | |
178 | return count; |
466 | /* unlink request */ |
|
|
467 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
468 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
469 | |
|
|
470 | if (grp->grp_first == req) |
|
|
471 | grp->grp_first = req->grp_next; |
|
|
472 | |
|
|
473 | aio_grp_dec (grp); |
|
|
474 | } |
|
|
475 | |
|
|
476 | if (SvTRUE (ERRSV)) |
|
|
477 | { |
|
|
478 | req_free (req); |
|
|
479 | croak (0); |
|
|
480 | } |
|
|
481 | } |
|
|
482 | |
|
|
483 | static void req_free (aio_req req) |
|
|
484 | { |
|
|
485 | if (req->self) |
|
|
486 | { |
|
|
487 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
488 | SvREFCNT_dec (req->self); |
|
|
489 | } |
|
|
490 | |
|
|
491 | SvREFCNT_dec (req->data); |
|
|
492 | SvREFCNT_dec (req->fh); |
|
|
493 | SvREFCNT_dec (req->fh2); |
|
|
494 | SvREFCNT_dec (req->callback); |
|
|
495 | Safefree (req->statdata); |
|
|
496 | |
|
|
497 | if (req->type == REQ_READDIR) |
|
|
498 | free (req->data2ptr); |
|
|
499 | |
|
|
500 | Safefree (req); |
|
|
501 | } |
|
|
502 | |
|
|
503 | static void req_cancel_subs (aio_req grp) |
|
|
504 | { |
|
|
505 | aio_req sub; |
|
|
506 | |
|
|
507 | if (grp->type != REQ_GROUP) |
|
|
508 | return; |
|
|
509 | |
|
|
510 | SvREFCNT_dec (grp->fh2); |
|
|
511 | grp->fh2 = 0; |
|
|
512 | |
|
|
513 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
514 | req_cancel (sub); |
|
|
515 | } |
|
|
516 | |
|
|
517 | static void req_cancel (aio_req req) |
|
|
518 | { |
|
|
519 | req->flags |= FLAG_CANCELLED; |
|
|
520 | |
|
|
521 | req_cancel_subs (req); |
179 | } |
522 | } |
180 | |
523 | |
181 | static void *aio_proc(void *arg); |
524 | static void *aio_proc(void *arg); |
182 | |
525 | |
183 | static void |
|
|
184 | start_thread (void) |
526 | static void start_thread (void) |
185 | { |
527 | { |
186 | sigset_t fullsigset, oldsigset; |
528 | sigset_t fullsigset, oldsigset; |
187 | pthread_t tid; |
|
|
188 | pthread_attr_t attr; |
529 | pthread_attr_t attr; |
|
|
530 | |
|
|
531 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
532 | |
|
|
533 | if (!wrk) |
|
|
534 | croak ("unable to allocate worker thread data"); |
189 | |
535 | |
190 | pthread_attr_init (&attr); |
536 | pthread_attr_init (&attr); |
191 | pthread_attr_setstacksize (&attr, STACKSIZE); |
537 | pthread_attr_setstacksize (&attr, STACKSIZE); |
192 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
538 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
539 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
540 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
541 | #endif |
193 | |
542 | |
194 | sigfillset (&fullsigset); |
543 | sigfillset (&fullsigset); |
|
|
544 | |
|
|
545 | LOCK (wrklock); |
195 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
546 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
196 | |
547 | |
197 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
548 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
549 | { |
|
|
550 | wrk->prev = &wrk_first; |
|
|
551 | wrk->next = wrk_first.next; |
|
|
552 | wrk_first.next->prev = wrk; |
|
|
553 | wrk_first.next = wrk; |
198 | started++; |
554 | ++started; |
|
|
555 | } |
|
|
556 | else |
|
|
557 | free (wrk); |
199 | |
558 | |
200 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
559 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
560 | UNLOCK (wrklock); |
201 | } |
561 | } |
202 | |
562 | |
203 | static void |
563 | static void maybe_start_thread () |
204 | send_req (aio_req req) |
|
|
205 | { |
564 | { |
|
|
565 | if (started >= wanted) |
|
|
566 | return; |
|
|
567 | |
|
|
568 | /* todo: maybe use idle here, but might be less exact */ |
|
|
569 | if ((int)nready <= (int)started - (int)(nreqs - get_nready () - get_npending ())) |
|
|
570 | return; |
|
|
571 | |
|
|
572 | start_thread (); |
|
|
573 | } |
|
|
574 | |
|
|
575 | static void req_send (aio_req req) |
|
|
576 | { |
206 | nreqs++; |
577 | ++nreqs; |
207 | |
578 | |
208 | pthread_mutex_lock (&reqlock); |
579 | LOCK (reqlock); |
209 | |
580 | ++nready; |
210 | req->next = 0; |
581 | reqq_push (&req_queue, req); |
211 | |
|
|
212 | if (reqe) |
|
|
213 | { |
|
|
214 | reqe->next = req; |
|
|
215 | reqe = req; |
|
|
216 | } |
|
|
217 | else |
|
|
218 | reqe = reqs = req; |
|
|
219 | |
|
|
220 | pthread_cond_signal (&reqwait); |
582 | pthread_cond_signal (&reqwait); |
221 | pthread_mutex_unlock (&reqlock); |
583 | UNLOCK (reqlock); |
222 | |
584 | |
|
|
585 | maybe_start_thread (); |
|
|
586 | } |
|
|
587 | |
|
|
588 | static void end_thread (void) |
|
|
589 | { |
|
|
590 | aio_req req; |
|
|
591 | |
|
|
592 | Newz (0, req, 1, aio_cb); |
|
|
593 | |
|
|
594 | req->type = REQ_QUIT; |
|
|
595 | req->pri = PRI_MAX + PRI_BIAS; |
|
|
596 | |
|
|
597 | LOCK (reqlock); |
|
|
598 | reqq_push (&req_queue, req); |
|
|
599 | pthread_cond_signal (&reqwait); |
|
|
600 | UNLOCK (reqlock); |
|
|
601 | |
|
|
602 | LOCK (wrklock); |
|
|
603 | --started; |
|
|
604 | UNLOCK (wrklock); |
|
|
605 | } |
|
|
606 | |
|
|
607 | static void min_parallel (int nthreads) |
|
|
608 | { |
|
|
609 | if (wanted < nthreads) |
|
|
610 | wanted = nthreads; |
|
|
611 | } |
|
|
612 | |
|
|
613 | static void max_parallel (int nthreads) |
|
|
614 | { |
|
|
615 | if (wanted > nthreads) |
|
|
616 | wanted = nthreads; |
|
|
617 | |
|
|
618 | while (started > wanted) |
|
|
619 | end_thread (); |
|
|
620 | } |
|
|
621 | |
|
|
622 | static void poll_wait () |
|
|
623 | { |
|
|
624 | fd_set rfd; |
|
|
625 | |
|
|
626 | while (nreqs) |
|
|
627 | { |
|
|
628 | int size; |
|
|
629 | if (WORDREAD_UNSAFE) LOCK (reslock); |
|
|
630 | size = res_queue.size; |
|
|
631 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
|
|
632 | |
|
|
633 | if (size) |
|
|
634 | return; |
|
|
635 | |
|
|
636 | maybe_start_thread (); |
|
|
637 | |
|
|
638 | FD_ZERO(&rfd); |
|
|
639 | FD_SET(respipe [0], &rfd); |
|
|
640 | |
|
|
641 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
|
|
642 | } |
|
|
643 | } |
|
|
644 | |
|
|
645 | static int poll_cb (int max) |
|
|
646 | { |
|
|
647 | dSP; |
|
|
648 | int count = 0; |
|
|
649 | int do_croak = 0; |
|
|
650 | aio_req req; |
|
|
651 | |
|
|
652 | for (;;) |
|
|
653 | { |
|
|
654 | while (max <= 0 || count < max) |
|
|
655 | { |
|
|
656 | maybe_start_thread (); |
|
|
657 | |
|
|
658 | LOCK (reslock); |
|
|
659 | req = reqq_shift (&res_queue); |
|
|
660 | |
|
|
661 | if (req) |
|
|
662 | { |
|
|
663 | --npending; |
|
|
664 | |
|
|
665 | if (!res_queue.size) |
|
|
666 | { |
|
|
667 | /* read any signals sent by the worker threads */ |
|
|
668 | char buf [32]; |
|
|
669 | while (read (respipe [0], buf, 32) == 32) |
|
|
670 | ; |
|
|
671 | } |
|
|
672 | } |
|
|
673 | |
|
|
674 | UNLOCK (reslock); |
|
|
675 | |
|
|
676 | if (!req) |
|
|
677 | break; |
|
|
678 | |
|
|
679 | --nreqs; |
|
|
680 | |
|
|
681 | if (req->type == REQ_GROUP && req->length) |
|
|
682 | { |
|
|
683 | req->fd = 1; /* mark request as delayed */ |
|
|
684 | continue; |
|
|
685 | } |
|
|
686 | else |
|
|
687 | { |
|
|
688 | if (req->type == REQ_READ) |
|
|
689 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
690 | |
|
|
691 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
692 | SvREADONLY_off (req->data); |
|
|
693 | |
|
|
694 | if (req->statdata) |
|
|
695 | { |
|
|
696 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
697 | PL_laststatval = req->result; |
|
|
698 | PL_statcache = *(req->statdata); |
|
|
699 | } |
|
|
700 | |
|
|
701 | req_invoke (req); |
|
|
702 | |
|
|
703 | count++; |
|
|
704 | } |
|
|
705 | |
|
|
706 | req_free (req); |
|
|
707 | } |
|
|
708 | |
223 | while (nreqs > max_outstanding) |
709 | if (nreqs <= max_outstanding) |
224 | { |
710 | break; |
|
|
711 | |
225 | poll_wait (); |
712 | poll_wait (); |
226 | poll_cb (); |
|
|
227 | } |
|
|
228 | } |
|
|
229 | |
713 | |
230 | static void |
714 | max = 0; |
231 | end_thread (void) |
715 | } |
232 | { |
|
|
233 | aio_req req; |
|
|
234 | New (0, req, 1, aio_cb); |
|
|
235 | req->type = REQ_QUIT; |
|
|
236 | |
716 | |
237 | send_req (req); |
717 | return count; |
238 | } |
718 | } |
239 | |
719 | |
|
|
720 | static void create_pipe () |
|
|
721 | { |
|
|
722 | if (pipe (respipe)) |
|
|
723 | croak ("unable to initialize result pipe"); |
|
|
724 | |
|
|
725 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
|
|
726 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
727 | |
|
|
728 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
|
|
729 | croak ("cannot set result pipe to nonblocking mode"); |
|
|
730 | } |
|
|
731 | |
|
|
732 | /*****************************************************************************/ |
240 | /* work around various missing functions */ |
733 | /* work around various missing functions */ |
241 | |
734 | |
242 | #if !HAVE_PREADWRITE |
735 | #if !HAVE_PREADWRITE |
243 | # define pread aio_pread |
736 | # define pread aio_pread |
244 | # define pwrite aio_pwrite |
737 | # define pwrite aio_pwrite |
… | |
… | |
246 | /* |
739 | /* |
247 | * make our pread/pwrite safe against themselves, but not against |
740 | * make our pread/pwrite safe against themselves, but not against |
248 | * normal read/write by using a mutex. slows down execution a lot, |
741 | * normal read/write by using a mutex. slows down execution a lot, |
249 | * but that's your problem, not mine. |
742 | * but that's your problem, not mine. |
250 | */ |
743 | */ |
251 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
744 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
252 | |
745 | |
253 | static ssize_t |
746 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
254 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
255 | { |
747 | { |
256 | ssize_t res; |
748 | ssize_t res; |
257 | off_t ooffset; |
749 | off_t ooffset; |
258 | |
750 | |
259 | pthread_mutex_lock (&iolock); |
751 | LOCK (preadwritelock); |
260 | ooffset = lseek (fd, 0, SEEK_CUR); |
752 | ooffset = lseek (fd, 0, SEEK_CUR); |
261 | lseek (fd, offset, SEEK_SET); |
753 | lseek (fd, offset, SEEK_SET); |
262 | res = read (fd, buf, count); |
754 | res = read (fd, buf, count); |
263 | lseek (fd, ooffset, SEEK_SET); |
755 | lseek (fd, ooffset, SEEK_SET); |
264 | pthread_mutex_unlock (&iolock); |
756 | UNLOCK (preadwritelock); |
265 | |
757 | |
266 | return res; |
758 | return res; |
267 | } |
759 | } |
268 | |
760 | |
269 | static ssize_t |
|
|
270 | pwrite (int fd, void *buf, size_t count, off_t offset) |
761 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
271 | { |
762 | { |
272 | ssize_t res; |
763 | ssize_t res; |
273 | off_t ooffset; |
764 | off_t ooffset; |
274 | |
765 | |
275 | pthread_mutex_lock (&iolock); |
766 | LOCK (preadwritelock); |
276 | ooffset = lseek (fd, 0, SEEK_CUR); |
767 | ooffset = lseek (fd, 0, SEEK_CUR); |
277 | lseek (fd, offset, SEEK_SET); |
768 | lseek (fd, offset, SEEK_SET); |
278 | res = write (fd, buf, count); |
769 | res = write (fd, buf, count); |
279 | lseek (fd, offset, SEEK_SET); |
770 | lseek (fd, offset, SEEK_SET); |
280 | pthread_mutex_unlock (&iolock); |
771 | UNLOCK (preadwritelock); |
281 | |
772 | |
282 | return res; |
773 | return res; |
283 | } |
774 | } |
284 | #endif |
775 | #endif |
285 | |
776 | |
286 | #if !HAVE_FDATASYNC |
777 | #if !HAVE_FDATASYNC |
287 | # define fdatasync fsync |
778 | # define fdatasync fsync |
288 | #endif |
779 | #endif |
289 | |
780 | |
290 | #if !HAVE_READAHEAD |
781 | #if !HAVE_READAHEAD |
291 | # define readahead aio_readahead |
782 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
292 | |
783 | |
293 | static char readahead_buf[4096]; |
784 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
294 | |
|
|
295 | static ssize_t |
|
|
296 | readahead (int fd, off_t offset, size_t count) |
|
|
297 | { |
785 | { |
|
|
786 | dBUF; |
|
|
787 | |
298 | while (count > 0) |
788 | while (count > 0) |
299 | { |
789 | { |
300 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
790 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
301 | |
791 | |
302 | pread (fd, readahead_buf, len, offset); |
792 | pread (fd, aio_buf, len, offset); |
303 | offset += len; |
793 | offset += len; |
304 | count -= len; |
794 | count -= len; |
305 | } |
795 | } |
306 | |
796 | |
307 | errno = 0; |
797 | errno = 0; |
308 | } |
798 | } |
|
|
799 | |
|
|
800 | #endif |
|
|
801 | |
|
|
802 | #if !HAVE_READDIR_R |
|
|
803 | # define readdir_r aio_readdir_r |
|
|
804 | |
|
|
805 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
806 | |
|
|
807 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
808 | { |
|
|
809 | struct dirent *e; |
|
|
810 | int errorno; |
|
|
811 | |
|
|
812 | LOCK (readdirlock); |
|
|
813 | |
|
|
814 | e = readdir (dirp); |
|
|
815 | errorno = errno; |
|
|
816 | |
|
|
817 | if (e) |
|
|
818 | { |
|
|
819 | *res = ent; |
|
|
820 | strcpy (ent->d_name, e->d_name); |
|
|
821 | } |
|
|
822 | else |
|
|
823 | *res = 0; |
|
|
824 | |
|
|
825 | UNLOCK (readdirlock); |
|
|
826 | |
|
|
827 | errno = errorno; |
|
|
828 | return e ? 0 : -1; |
|
|
829 | } |
|
|
830 | #endif |
|
|
831 | |
|
|
832 | /* sendfile always needs emulation */ |
|
|
833 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
834 | { |
|
|
835 | ssize_t res; |
|
|
836 | |
|
|
837 | if (!count) |
|
|
838 | return 0; |
|
|
839 | |
|
|
840 | #if HAVE_SENDFILE |
|
|
841 | # if __linux |
|
|
842 | res = sendfile (ofd, ifd, &offset, count); |
|
|
843 | |
|
|
844 | # elif __freebsd |
|
|
845 | /* |
|
|
846 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
847 | * wasted on making it similar to other I/O functions. |
|
|
848 | */ |
|
|
849 | { |
|
|
850 | off_t sbytes; |
|
|
851 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
852 | |
|
|
853 | if (res < 0 && sbytes) |
|
|
854 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
855 | res = sbytes; |
|
|
856 | } |
|
|
857 | |
|
|
858 | # elif __hpux |
|
|
859 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
860 | |
|
|
861 | # elif __solaris |
|
|
862 | { |
|
|
863 | struct sendfilevec vec; |
|
|
864 | size_t sbytes; |
|
|
865 | |
|
|
866 | vec.sfv_fd = ifd; |
|
|
867 | vec.sfv_flag = 0; |
|
|
868 | vec.sfv_off = offset; |
|
|
869 | vec.sfv_len = count; |
|
|
870 | |
|
|
871 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
872 | |
|
|
873 | if (res < 0 && sbytes) |
|
|
874 | res = sbytes; |
|
|
875 | } |
|
|
876 | |
309 | #endif |
877 | # endif |
|
|
878 | #else |
|
|
879 | res = -1; |
|
|
880 | errno = ENOSYS; |
|
|
881 | #endif |
310 | |
882 | |
311 | static void * |
883 | if (res < 0 |
|
|
884 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
885 | #if __solaris |
|
|
886 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
887 | #endif |
|
|
888 | ) |
|
|
889 | ) |
|
|
890 | { |
|
|
891 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
892 | dBUF; |
|
|
893 | |
|
|
894 | res = 0; |
|
|
895 | |
|
|
896 | while (count) |
|
|
897 | { |
|
|
898 | ssize_t cnt; |
|
|
899 | |
|
|
900 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
901 | |
|
|
902 | if (cnt <= 0) |
|
|
903 | { |
|
|
904 | if (cnt && !res) res = -1; |
|
|
905 | break; |
|
|
906 | } |
|
|
907 | |
|
|
908 | cnt = write (ofd, aio_buf, cnt); |
|
|
909 | |
|
|
910 | if (cnt <= 0) |
|
|
911 | { |
|
|
912 | if (cnt && !res) res = -1; |
|
|
913 | break; |
|
|
914 | } |
|
|
915 | |
|
|
916 | offset += cnt; |
|
|
917 | res += cnt; |
|
|
918 | count -= cnt; |
|
|
919 | } |
|
|
920 | } |
|
|
921 | |
|
|
922 | return res; |
|
|
923 | } |
|
|
924 | |
|
|
925 | /* read a full directory */ |
|
|
926 | static void scandir_ (aio_req req, worker *self) |
|
|
927 | { |
|
|
928 | DIR *dirp; |
|
|
929 | union |
|
|
930 | { |
|
|
931 | struct dirent d; |
|
|
932 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
933 | } *u; |
|
|
934 | struct dirent *entp; |
|
|
935 | char *name, *names; |
|
|
936 | int memlen = 4096; |
|
|
937 | int memofs = 0; |
|
|
938 | int res = 0; |
|
|
939 | int errorno; |
|
|
940 | |
|
|
941 | LOCK (wrklock); |
|
|
942 | self->dirp = dirp = opendir (req->dataptr); |
|
|
943 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
944 | req->data2ptr = names = malloc (memlen); |
|
|
945 | UNLOCK (wrklock); |
|
|
946 | |
|
|
947 | if (dirp && u && names) |
|
|
948 | for (;;) |
|
|
949 | { |
|
|
950 | errno = 0; |
|
|
951 | readdir_r (dirp, &u->d, &entp); |
|
|
952 | |
|
|
953 | if (!entp) |
|
|
954 | break; |
|
|
955 | |
|
|
956 | name = entp->d_name; |
|
|
957 | |
|
|
958 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
959 | { |
|
|
960 | int len = strlen (name) + 1; |
|
|
961 | |
|
|
962 | res++; |
|
|
963 | |
|
|
964 | while (memofs + len > memlen) |
|
|
965 | { |
|
|
966 | memlen *= 2; |
|
|
967 | LOCK (wrklock); |
|
|
968 | req->data2ptr = names = realloc (names, memlen); |
|
|
969 | UNLOCK (wrklock); |
|
|
970 | |
|
|
971 | if (!names) |
|
|
972 | break; |
|
|
973 | } |
|
|
974 | |
|
|
975 | memcpy (names + memofs, name, len); |
|
|
976 | memofs += len; |
|
|
977 | } |
|
|
978 | } |
|
|
979 | |
|
|
980 | if (errno) |
|
|
981 | res = -1; |
|
|
982 | |
|
|
983 | req->result = res; |
|
|
984 | } |
|
|
985 | |
|
|
986 | /*****************************************************************************/ |
|
|
987 | |
312 | aio_proc (void *thr_arg) |
988 | static void *aio_proc (void *thr_arg) |
313 | { |
989 | { |
314 | aio_req req; |
990 | aio_req req; |
315 | int type; |
991 | struct timespec ts; |
|
|
992 | worker *self = (worker *)thr_arg; |
316 | |
993 | |
317 | do |
994 | /* try to distribute timeouts somewhat evenly */ |
|
|
995 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
996 | * (1000000000UL / 1024UL); |
|
|
997 | |
|
|
998 | for (;;) |
318 | { |
999 | { |
319 | pthread_mutex_lock (&reqlock); |
1000 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1001 | |
|
|
1002 | LOCK (reqlock); |
320 | |
1003 | |
321 | for (;;) |
1004 | for (;;) |
322 | { |
1005 | { |
323 | req = reqs; |
1006 | self->req = req = reqq_shift (&req_queue); |
324 | |
|
|
325 | if (reqs) |
|
|
326 | { |
|
|
327 | reqs = reqs->next; |
|
|
328 | if (!reqs) reqe = 0; |
|
|
329 | } |
|
|
330 | |
1007 | |
331 | if (req) |
1008 | if (req) |
332 | break; |
1009 | break; |
333 | |
1010 | |
|
|
1011 | ++idle; |
|
|
1012 | |
|
|
1013 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1014 | == ETIMEDOUT) |
|
|
1015 | { |
|
|
1016 | if (idle > max_idle) |
|
|
1017 | { |
|
|
1018 | --idle; |
|
|
1019 | UNLOCK (reqlock); |
|
|
1020 | LOCK (wrklock); |
|
|
1021 | --started; |
|
|
1022 | UNLOCK (wrklock); |
|
|
1023 | goto quit; |
|
|
1024 | } |
|
|
1025 | |
|
|
1026 | /* we are allowed to idle, so do so without any timeout */ |
334 | pthread_cond_wait (&reqwait, &reqlock); |
1027 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1028 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | --idle; |
335 | } |
1032 | } |
336 | |
1033 | |
337 | pthread_mutex_unlock (&reqlock); |
1034 | --nready; |
|
|
1035 | |
|
|
1036 | UNLOCK (reqlock); |
338 | |
1037 | |
339 | errno = 0; /* strictly unnecessary */ |
1038 | errno = 0; /* strictly unnecessary */ |
340 | |
1039 | |
341 | type = req->type; |
1040 | if (!(req->flags & FLAG_CANCELLED)) |
342 | |
|
|
343 | switch (type) |
1041 | switch (req->type) |
344 | { |
1042 | { |
345 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1043 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
346 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1044 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
347 | |
1045 | |
348 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1046 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
1047 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
349 | |
1048 | |
350 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1049 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
351 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1050 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
352 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1051 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
353 | |
1052 | |
354 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1053 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
355 | case REQ_CLOSE: req->result = close (req->fd); break; |
1054 | case REQ_CLOSE: req->result = close (req->fd); break; |
356 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1055 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
|
|
1056 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
1057 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
1058 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
|
|
1059 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
|
|
1060 | case REQ_MKNOD: req->result = mknod (req->data2ptr, req->mode, (dev_t)req->offset); break; |
357 | |
1061 | |
358 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1062 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
359 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1063 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
1064 | case REQ_READDIR: scandir_ (req, self); break; |
360 | |
1065 | |
|
|
1066 | case REQ_BUSY: |
|
|
1067 | { |
|
|
1068 | struct timeval tv; |
|
|
1069 | |
|
|
1070 | tv.tv_sec = req->fd; |
|
|
1071 | tv.tv_usec = req->fd2; |
|
|
1072 | |
|
|
1073 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1074 | } |
|
|
1075 | |
|
|
1076 | case REQ_GROUP: |
|
|
1077 | case REQ_NOP: |
|
|
1078 | break; |
|
|
1079 | |
361 | case REQ_QUIT: |
1080 | case REQ_QUIT: |
362 | break; |
1081 | goto quit; |
363 | |
1082 | |
364 | default: |
1083 | default: |
365 | req->result = ENOSYS; |
1084 | req->result = ENOSYS; |
366 | break; |
1085 | break; |
367 | } |
1086 | } |
368 | |
1087 | |
369 | req->errorno = errno; |
1088 | req->errorno = errno; |
370 | |
1089 | |
371 | pthread_mutex_lock (&reslock); |
1090 | LOCK (reslock); |
372 | |
1091 | |
373 | req->next = 0; |
1092 | ++npending; |
374 | |
1093 | |
375 | if (rese) |
1094 | if (!reqq_push (&res_queue, req)) |
376 | { |
|
|
377 | rese->next = req; |
|
|
378 | rese = req; |
|
|
379 | } |
|
|
380 | else |
|
|
381 | { |
|
|
382 | rese = ress = req; |
|
|
383 | |
|
|
384 | /* write a dummy byte to the pipe so fh becomes ready */ |
1095 | /* write a dummy byte to the pipe so fh becomes ready */ |
385 | write (respipe [1], &respipe, 1); |
1096 | write (respipe [1], &respipe, 1); |
386 | } |
|
|
387 | |
1097 | |
388 | pthread_mutex_unlock (&reslock); |
1098 | self->req = 0; |
|
|
1099 | worker_clear (self); |
|
|
1100 | |
|
|
1101 | UNLOCK (reslock); |
389 | } |
1102 | } |
390 | while (type != REQ_QUIT); |
1103 | |
|
|
1104 | quit: |
|
|
1105 | LOCK (wrklock); |
|
|
1106 | worker_free (self); |
|
|
1107 | UNLOCK (wrklock); |
391 | |
1108 | |
392 | return 0; |
1109 | return 0; |
393 | } |
1110 | } |
394 | |
1111 | |
|
|
1112 | /*****************************************************************************/ |
|
|
1113 | |
|
|
1114 | static void atfork_prepare (void) |
|
|
1115 | { |
|
|
1116 | LOCK (wrklock); |
|
|
1117 | LOCK (reqlock); |
|
|
1118 | LOCK (reslock); |
|
|
1119 | #if !HAVE_PREADWRITE |
|
|
1120 | LOCK (preadwritelock); |
|
|
1121 | #endif |
|
|
1122 | #if !HAVE_READDIR_R |
|
|
1123 | LOCK (readdirlock); |
|
|
1124 | #endif |
|
|
1125 | } |
|
|
1126 | |
|
|
1127 | static void atfork_parent (void) |
|
|
1128 | { |
|
|
1129 | #if !HAVE_READDIR_R |
|
|
1130 | UNLOCK (readdirlock); |
|
|
1131 | #endif |
|
|
1132 | #if !HAVE_PREADWRITE |
|
|
1133 | UNLOCK (preadwritelock); |
|
|
1134 | #endif |
|
|
1135 | UNLOCK (reslock); |
|
|
1136 | UNLOCK (reqlock); |
|
|
1137 | UNLOCK (wrklock); |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | static void atfork_child (void) |
|
|
1141 | { |
|
|
1142 | aio_req prv; |
|
|
1143 | |
|
|
1144 | while (prv = reqq_shift (&req_queue)) |
|
|
1145 | req_free (prv); |
|
|
1146 | |
|
|
1147 | while (prv = reqq_shift (&res_queue)) |
|
|
1148 | req_free (prv); |
|
|
1149 | |
|
|
1150 | while (wrk_first.next != &wrk_first) |
|
|
1151 | { |
|
|
1152 | worker *wrk = wrk_first.next; |
|
|
1153 | |
|
|
1154 | if (wrk->req) |
|
|
1155 | req_free (wrk->req); |
|
|
1156 | |
|
|
1157 | worker_clear (wrk); |
|
|
1158 | worker_free (wrk); |
|
|
1159 | } |
|
|
1160 | |
|
|
1161 | started = 0; |
|
|
1162 | idle = 0; |
|
|
1163 | nreqs = 0; |
|
|
1164 | nready = 0; |
|
|
1165 | npending = 0; |
|
|
1166 | |
|
|
1167 | close (respipe [0]); |
|
|
1168 | close (respipe [1]); |
|
|
1169 | create_pipe (); |
|
|
1170 | |
|
|
1171 | atfork_parent (); |
|
|
1172 | } |
|
|
1173 | |
|
|
1174 | #define dREQ \ |
|
|
1175 | aio_req req; \ |
|
|
1176 | int req_pri = next_pri; \ |
|
|
1177 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
|
|
1178 | \ |
|
|
1179 | if (SvOK (callback) && !SvROK (callback)) \ |
|
|
1180 | croak ("callback must be undef or of reference type"); \ |
|
|
1181 | \ |
|
|
1182 | Newz (0, req, 1, aio_cb); \ |
|
|
1183 | if (!req) \ |
|
|
1184 | croak ("out of memory during aio_req allocation"); \ |
|
|
1185 | \ |
|
|
1186 | req->callback = newSVsv (callback); \ |
|
|
1187 | req->pri = req_pri |
|
|
1188 | |
|
|
1189 | #define REQ_SEND \ |
|
|
1190 | req_send (req); \ |
|
|
1191 | \ |
|
|
1192 | if (GIMME_V != G_VOID) \ |
|
|
1193 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
|
|
1194 | |
395 | MODULE = IO::AIO PACKAGE = IO::AIO |
1195 | MODULE = IO::AIO PACKAGE = IO::AIO |
396 | |
1196 | |
397 | PROTOTYPES: ENABLE |
1197 | PROTOTYPES: ENABLE |
398 | |
1198 | |
399 | BOOT: |
1199 | BOOT: |
400 | { |
1200 | { |
401 | if (pipe (respipe)) |
1201 | HV *stash = gv_stashpv ("IO::AIO", 1); |
402 | croak ("unable to initialize result pipe"); |
|
|
403 | |
1202 | |
404 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
1203 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
405 | croak ("cannot set result pipe to nonblocking mode"); |
1204 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1205 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1206 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1207 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1208 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
406 | |
1209 | |
407 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
1210 | create_pipe (); |
408 | croak ("cannot set result pipe to nonblocking mode"); |
1211 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
409 | } |
1212 | } |
410 | |
1213 | |
411 | void |
1214 | void |
412 | min_parallel(nthreads) |
1215 | min_parallel (int nthreads) |
413 | int nthreads |
1216 | PROTOTYPE: $ |
|
|
1217 | |
|
|
1218 | void |
|
|
1219 | max_parallel (int nthreads) |
|
|
1220 | PROTOTYPE: $ |
|
|
1221 | |
|
|
1222 | int |
|
|
1223 | max_outstanding (int maxreqs) |
414 | PROTOTYPE: $ |
1224 | PROTOTYPE: $ |
415 | CODE: |
1225 | CODE: |
416 | while (nthreads > started) |
|
|
417 | start_thread (); |
|
|
418 | |
|
|
419 | void |
|
|
420 | max_parallel(nthreads) |
|
|
421 | int nthreads |
|
|
422 | PROTOTYPE: $ |
|
|
423 | CODE: |
|
|
424 | { |
|
|
425 | int cur = started; |
|
|
426 | while (cur > nthreads) |
|
|
427 | { |
|
|
428 | end_thread (); |
|
|
429 | cur--; |
|
|
430 | } |
|
|
431 | |
|
|
432 | while (started > nthreads) |
|
|
433 | { |
|
|
434 | poll_wait (); |
|
|
435 | poll_cb (); |
|
|
436 | } |
|
|
437 | } |
|
|
438 | |
|
|
439 | int |
|
|
440 | max_outstanding(nreqs) |
|
|
441 | int nreqs |
|
|
442 | PROTOTYPE: $ |
|
|
443 | CODE: |
|
|
444 | RETVAL = max_outstanding; |
1226 | RETVAL = max_outstanding; |
445 | max_outstanding = nreqs; |
1227 | max_outstanding = maxreqs; |
|
|
1228 | OUTPUT: |
|
|
1229 | RETVAL |
446 | |
1230 | |
447 | void |
1231 | void |
448 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1232 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
449 | SV * pathname |
1233 | SV * pathname |
450 | int flags |
1234 | int flags |
451 | int mode |
1235 | int mode |
452 | SV * callback |
1236 | SV * callback |
453 | PROTOTYPE: $$$;$ |
1237 | PROTOTYPE: $$$;$ |
454 | CODE: |
1238 | PPCODE: |
455 | { |
1239 | { |
456 | aio_req req; |
1240 | dREQ; |
457 | |
|
|
458 | Newz (0, req, 1, aio_cb); |
|
|
459 | |
|
|
460 | if (!req) |
|
|
461 | croak ("out of memory during aio_req allocation"); |
|
|
462 | |
1241 | |
463 | req->type = REQ_OPEN; |
1242 | req->type = REQ_OPEN; |
464 | req->data = newSVsv (pathname); |
1243 | req->data = newSVsv (pathname); |
465 | req->dataptr = SvPV_nolen (req->data); |
1244 | req->dataptr = SvPVbyte_nolen (req->data); |
466 | req->fd = flags; |
1245 | req->fd = flags; |
467 | req->mode = mode; |
1246 | req->mode = mode; |
468 | req->callback = SvREFCNT_inc (callback); |
|
|
469 | |
1247 | |
470 | send_req (req); |
1248 | REQ_SEND; |
471 | } |
1249 | } |
472 | |
1250 | |
473 | void |
1251 | void |
474 | aio_close(fh,callback=&PL_sv_undef) |
1252 | aio_close (fh,callback=&PL_sv_undef) |
475 | SV * fh |
1253 | SV * fh |
476 | SV * callback |
1254 | SV * callback |
477 | PROTOTYPE: $;$ |
1255 | PROTOTYPE: $;$ |
478 | ALIAS: |
1256 | ALIAS: |
479 | aio_close = REQ_CLOSE |
1257 | aio_close = REQ_CLOSE |
480 | aio_fsync = REQ_FSYNC |
1258 | aio_fsync = REQ_FSYNC |
481 | aio_fdatasync = REQ_FDATASYNC |
1259 | aio_fdatasync = REQ_FDATASYNC |
482 | CODE: |
1260 | PPCODE: |
483 | { |
1261 | { |
484 | aio_req req; |
1262 | dREQ; |
485 | |
|
|
486 | Newz (0, req, 1, aio_cb); |
|
|
487 | |
|
|
488 | if (!req) |
|
|
489 | croak ("out of memory during aio_req allocation"); |
|
|
490 | |
1263 | |
491 | req->type = ix; |
1264 | req->type = ix; |
492 | req->fh = newSVsv (fh); |
1265 | req->fh = newSVsv (fh); |
493 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1266 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
494 | req->callback = SvREFCNT_inc (callback); |
|
|
495 | |
1267 | |
496 | send_req (req); |
1268 | REQ_SEND (req); |
497 | } |
1269 | } |
498 | |
1270 | |
499 | void |
1271 | void |
500 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1272 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
501 | SV * fh |
1273 | SV * fh |
502 | UV offset |
1274 | UV offset |
503 | IV length |
1275 | UV length |
504 | SV * data |
1276 | SV * data |
505 | IV dataoffset |
1277 | UV dataoffset |
506 | SV * callback |
1278 | SV * callback |
507 | ALIAS: |
1279 | ALIAS: |
508 | aio_read = REQ_READ |
1280 | aio_read = REQ_READ |
509 | aio_write = REQ_WRITE |
1281 | aio_write = REQ_WRITE |
510 | PROTOTYPE: $$$$$;$ |
1282 | PROTOTYPE: $$$$$;$ |
511 | CODE: |
1283 | PPCODE: |
512 | { |
1284 | { |
513 | aio_req req; |
1285 | aio_req req; |
514 | STRLEN svlen; |
1286 | STRLEN svlen; |
515 | char *svptr = SvPV (data, svlen); |
1287 | char *svptr = SvPVbyte (data, svlen); |
516 | |
1288 | |
517 | SvUPGRADE (data, SVt_PV); |
1289 | SvUPGRADE (data, SVt_PV); |
518 | SvPOK_on (data); |
1290 | SvPOK_on (data); |
519 | |
1291 | |
520 | if (dataoffset < 0) |
1292 | if (dataoffset < 0) |
… | |
… | |
536 | } |
1308 | } |
537 | |
1309 | |
538 | if (length < 0) |
1310 | if (length < 0) |
539 | croak ("length must not be negative"); |
1311 | croak ("length must not be negative"); |
540 | |
1312 | |
541 | Newz (0, req, 1, aio_cb); |
1313 | { |
|
|
1314 | dREQ; |
542 | |
1315 | |
543 | if (!req) |
|
|
544 | croak ("out of memory during aio_req allocation"); |
|
|
545 | |
|
|
546 | req->type = ix; |
1316 | req->type = ix; |
547 | req->fh = newSVsv (fh); |
1317 | req->fh = newSVsv (fh); |
548 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1318 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
549 | : IoOFP (sv_2io (fh))); |
1319 | : IoOFP (sv_2io (fh))); |
550 | req->offset = offset; |
1320 | req->offset = offset; |
|
|
1321 | req->length = length; |
|
|
1322 | req->data = SvREFCNT_inc (data); |
|
|
1323 | req->dataptr = (char *)svptr + dataoffset; |
|
|
1324 | |
|
|
1325 | if (!SvREADONLY (data)) |
|
|
1326 | { |
|
|
1327 | SvREADONLY_on (data); |
|
|
1328 | req->data2ptr = (void *)data; |
|
|
1329 | } |
|
|
1330 | |
|
|
1331 | REQ_SEND; |
|
|
1332 | } |
|
|
1333 | } |
|
|
1334 | |
|
|
1335 | void |
|
|
1336 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1337 | SV * out_fh |
|
|
1338 | SV * in_fh |
|
|
1339 | UV in_offset |
|
|
1340 | UV length |
|
|
1341 | SV * callback |
|
|
1342 | PROTOTYPE: $$$$;$ |
|
|
1343 | PPCODE: |
|
|
1344 | { |
|
|
1345 | dREQ; |
|
|
1346 | |
|
|
1347 | req->type = REQ_SENDFILE; |
|
|
1348 | req->fh = newSVsv (out_fh); |
|
|
1349 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1350 | req->fh2 = newSVsv (in_fh); |
|
|
1351 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1352 | req->offset = in_offset; |
551 | req->length = length; |
1353 | req->length = length; |
552 | req->data = SvREFCNT_inc (data); |
|
|
553 | req->dataptr = (char *)svptr + dataoffset; |
|
|
554 | req->callback = SvREFCNT_inc (callback); |
|
|
555 | |
1354 | |
556 | send_req (req); |
1355 | REQ_SEND; |
557 | } |
1356 | } |
558 | |
1357 | |
559 | void |
1358 | void |
560 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1359 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
561 | SV * fh |
1360 | SV * fh |
562 | UV offset |
1361 | UV offset |
563 | IV length |
1362 | IV length |
564 | SV * callback |
1363 | SV * callback |
565 | PROTOTYPE: $$$;$ |
1364 | PROTOTYPE: $$$;$ |
566 | CODE: |
1365 | PPCODE: |
567 | { |
1366 | { |
568 | aio_req req; |
1367 | dREQ; |
569 | |
|
|
570 | if (length < 0) |
|
|
571 | croak ("length must not be negative"); |
|
|
572 | |
|
|
573 | Newz (0, req, 1, aio_cb); |
|
|
574 | |
|
|
575 | if (!req) |
|
|
576 | croak ("out of memory during aio_req allocation"); |
|
|
577 | |
1368 | |
578 | req->type = REQ_READAHEAD; |
1369 | req->type = REQ_READAHEAD; |
579 | req->fh = newSVsv (fh); |
1370 | req->fh = newSVsv (fh); |
580 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1371 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
581 | req->offset = offset; |
1372 | req->offset = offset; |
582 | req->length = length; |
1373 | req->length = length; |
583 | req->callback = SvREFCNT_inc (callback); |
|
|
584 | |
1374 | |
585 | send_req (req); |
1375 | REQ_SEND; |
586 | } |
1376 | } |
587 | |
1377 | |
588 | void |
1378 | void |
589 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1379 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
590 | SV * fh_or_path |
1380 | SV * fh_or_path |
591 | SV * callback |
1381 | SV * callback |
592 | ALIAS: |
1382 | ALIAS: |
593 | aio_stat = REQ_STAT |
1383 | aio_stat = REQ_STAT |
594 | aio_lstat = REQ_LSTAT |
1384 | aio_lstat = REQ_LSTAT |
595 | CODE: |
1385 | PPCODE: |
596 | { |
1386 | { |
597 | aio_req req; |
1387 | dREQ; |
598 | |
|
|
599 | Newz (0, req, 1, aio_cb); |
|
|
600 | |
|
|
601 | if (!req) |
|
|
602 | croak ("out of memory during aio_req allocation"); |
|
|
603 | |
1388 | |
604 | New (0, req->statdata, 1, Stat_t); |
1389 | New (0, req->statdata, 1, Stat_t); |
605 | |
|
|
606 | if (!req->statdata) |
1390 | if (!req->statdata) |
|
|
1391 | { |
|
|
1392 | req_free (req); |
607 | croak ("out of memory during aio_req->statdata allocation"); |
1393 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1394 | } |
608 | |
1395 | |
609 | if (SvPOK (fh_or_path)) |
1396 | if (SvPOK (fh_or_path)) |
610 | { |
1397 | { |
611 | req->type = ix; |
1398 | req->type = ix; |
612 | req->data = newSVsv (fh_or_path); |
1399 | req->data = newSVsv (fh_or_path); |
613 | req->dataptr = SvPV_nolen (req->data); |
1400 | req->dataptr = SvPVbyte_nolen (req->data); |
614 | } |
1401 | } |
615 | else |
1402 | else |
616 | { |
1403 | { |
617 | req->type = REQ_FSTAT; |
1404 | req->type = REQ_FSTAT; |
618 | req->fh = newSVsv (fh_or_path); |
1405 | req->fh = newSVsv (fh_or_path); |
619 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1406 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
620 | } |
1407 | } |
621 | |
1408 | |
622 | req->callback = SvREFCNT_inc (callback); |
1409 | REQ_SEND; |
623 | |
|
|
624 | send_req (req); |
|
|
625 | } |
1410 | } |
626 | |
1411 | |
627 | void |
1412 | void |
628 | aio_unlink(pathname,callback=&PL_sv_undef) |
1413 | aio_unlink (pathname,callback=&PL_sv_undef) |
629 | SV * pathname |
1414 | SV * pathname |
630 | SV * callback |
1415 | SV * callback |
|
|
1416 | ALIAS: |
|
|
1417 | aio_unlink = REQ_UNLINK |
|
|
1418 | aio_rmdir = REQ_RMDIR |
|
|
1419 | aio_readdir = REQ_READDIR |
|
|
1420 | PPCODE: |
|
|
1421 | { |
|
|
1422 | dREQ; |
|
|
1423 | |
|
|
1424 | req->type = ix; |
|
|
1425 | req->data = newSVsv (pathname); |
|
|
1426 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1427 | |
|
|
1428 | REQ_SEND; |
|
|
1429 | } |
|
|
1430 | |
|
|
1431 | void |
|
|
1432 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
|
|
1433 | SV * oldpath |
|
|
1434 | SV * newpath |
|
|
1435 | SV * callback |
|
|
1436 | ALIAS: |
|
|
1437 | aio_link = REQ_LINK |
|
|
1438 | aio_symlink = REQ_SYMLINK |
|
|
1439 | aio_rename = REQ_RENAME |
|
|
1440 | PPCODE: |
|
|
1441 | { |
|
|
1442 | dREQ; |
|
|
1443 | |
|
|
1444 | req->type = ix; |
|
|
1445 | req->fh = newSVsv (oldpath); |
|
|
1446 | req->data2ptr = SvPVbyte_nolen (req->fh); |
|
|
1447 | req->data = newSVsv (newpath); |
|
|
1448 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1449 | |
|
|
1450 | REQ_SEND; |
|
|
1451 | } |
|
|
1452 | |
|
|
1453 | void |
|
|
1454 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
|
|
1455 | SV * pathname |
|
|
1456 | SV * callback |
|
|
1457 | UV mode |
|
|
1458 | UV dev |
|
|
1459 | PPCODE: |
|
|
1460 | { |
|
|
1461 | dREQ; |
|
|
1462 | |
|
|
1463 | req->type = REQ_MKNOD; |
|
|
1464 | req->data = newSVsv (pathname); |
|
|
1465 | req->dataptr = SvPVbyte_nolen (req->data); |
|
|
1466 | req->mode = (mode_t)mode; |
|
|
1467 | req->offset = dev; |
|
|
1468 | |
|
|
1469 | REQ_SEND; |
|
|
1470 | } |
|
|
1471 | |
|
|
1472 | void |
|
|
1473 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1474 | double delay |
|
|
1475 | SV * callback |
|
|
1476 | PPCODE: |
|
|
1477 | { |
|
|
1478 | dREQ; |
|
|
1479 | |
|
|
1480 | req->type = REQ_BUSY; |
|
|
1481 | req->fd = delay < 0. ? 0 : delay; |
|
|
1482 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1483 | |
|
|
1484 | REQ_SEND; |
|
|
1485 | } |
|
|
1486 | |
|
|
1487 | void |
|
|
1488 | aio_group (callback=&PL_sv_undef) |
|
|
1489 | SV * callback |
|
|
1490 | PROTOTYPE: ;$ |
|
|
1491 | PPCODE: |
|
|
1492 | { |
|
|
1493 | dREQ; |
|
|
1494 | |
|
|
1495 | req->type = REQ_GROUP; |
|
|
1496 | req_send (req); |
|
|
1497 | |
|
|
1498 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | void |
|
|
1502 | aio_nop (callback=&PL_sv_undef) |
|
|
1503 | SV * callback |
|
|
1504 | PPCODE: |
|
|
1505 | { |
|
|
1506 | dREQ; |
|
|
1507 | |
|
|
1508 | req->type = REQ_NOP; |
|
|
1509 | |
|
|
1510 | REQ_SEND; |
|
|
1511 | } |
|
|
1512 | |
|
|
1513 | int |
|
|
1514 | aioreq_pri (int pri = 0) |
|
|
1515 | PROTOTYPE: ;$ |
631 | CODE: |
1516 | CODE: |
632 | { |
1517 | RETVAL = next_pri - PRI_BIAS; |
633 | aio_req req; |
1518 | if (items > 0) |
634 | |
1519 | { |
635 | Newz (0, req, 1, aio_cb); |
1520 | if (pri < PRI_MIN) pri = PRI_MIN; |
636 | |
1521 | if (pri > PRI_MAX) pri = PRI_MAX; |
637 | if (!req) |
1522 | next_pri = pri + PRI_BIAS; |
638 | croak ("out of memory during aio_req allocation"); |
1523 | } |
639 | |
1524 | OUTPUT: |
640 | req->type = REQ_UNLINK; |
1525 | RETVAL |
641 | req->data = newSVsv (pathname); |
|
|
642 | req->dataptr = SvPV_nolen (req->data); |
|
|
643 | req->callback = SvREFCNT_inc (callback); |
|
|
644 | |
|
|
645 | send_req (req); |
|
|
646 | } |
|
|
647 | |
1526 | |
648 | void |
1527 | void |
|
|
1528 | aioreq_nice (int nice = 0) |
|
|
1529 | CODE: |
|
|
1530 | nice = next_pri - nice; |
|
|
1531 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1532 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1533 | next_pri = nice + PRI_BIAS; |
|
|
1534 | |
|
|
1535 | void |
649 | flush() |
1536 | flush () |
650 | PROTOTYPE: |
1537 | PROTOTYPE: |
651 | CODE: |
1538 | CODE: |
652 | while (nreqs) |
1539 | while (nreqs) |
653 | { |
1540 | { |
654 | poll_wait (); |
1541 | poll_wait (); |
655 | poll_cb (); |
1542 | poll_cb (0); |
656 | } |
1543 | } |
657 | |
1544 | |
658 | void |
1545 | void |
659 | poll() |
1546 | poll() |
660 | PROTOTYPE: |
1547 | PROTOTYPE: |
661 | CODE: |
1548 | CODE: |
662 | if (nreqs) |
1549 | if (nreqs) |
663 | { |
1550 | { |
664 | poll_wait (); |
1551 | poll_wait (); |
665 | poll_cb (); |
1552 | poll_cb (0); |
666 | } |
1553 | } |
667 | |
1554 | |
668 | int |
1555 | int |
669 | poll_fileno() |
1556 | poll_fileno() |
670 | PROTOTYPE: |
1557 | PROTOTYPE: |
… | |
… | |
675 | |
1562 | |
676 | int |
1563 | int |
677 | poll_cb(...) |
1564 | poll_cb(...) |
678 | PROTOTYPE: |
1565 | PROTOTYPE: |
679 | CODE: |
1566 | CODE: |
680 | RETVAL = poll_cb (); |
1567 | RETVAL = poll_cb (0); |
|
|
1568 | OUTPUT: |
|
|
1569 | RETVAL |
|
|
1570 | |
|
|
1571 | int |
|
|
1572 | poll_some(int max = 0) |
|
|
1573 | PROTOTYPE: $ |
|
|
1574 | CODE: |
|
|
1575 | RETVAL = poll_cb (max); |
681 | OUTPUT: |
1576 | OUTPUT: |
682 | RETVAL |
1577 | RETVAL |
683 | |
1578 | |
684 | void |
1579 | void |
685 | poll_wait() |
1580 | poll_wait() |
… | |
… | |
694 | CODE: |
1589 | CODE: |
695 | RETVAL = nreqs; |
1590 | RETVAL = nreqs; |
696 | OUTPUT: |
1591 | OUTPUT: |
697 | RETVAL |
1592 | RETVAL |
698 | |
1593 | |
|
|
1594 | int |
|
|
1595 | nready() |
|
|
1596 | PROTOTYPE: |
|
|
1597 | CODE: |
|
|
1598 | RETVAL = get_nready (); |
|
|
1599 | OUTPUT: |
|
|
1600 | RETVAL |
|
|
1601 | |
|
|
1602 | int |
|
|
1603 | npending() |
|
|
1604 | PROTOTYPE: |
|
|
1605 | CODE: |
|
|
1606 | RETVAL = get_npending (); |
|
|
1607 | OUTPUT: |
|
|
1608 | RETVAL |
|
|
1609 | |
|
|
1610 | PROTOTYPES: DISABLE |
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1611 | |
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1612 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
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1613 | |
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1614 | void |
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1615 | cancel (aio_req_ornot req) |
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1616 | CODE: |
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1617 | req_cancel (req); |
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1618 | |
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1619 | void |
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1620 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
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1621 | CODE: |
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1622 | SvREFCNT_dec (req->callback); |
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1623 | req->callback = newSVsv (callback); |
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1624 | |
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1625 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
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1626 | |
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1627 | void |
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1628 | add (aio_req grp, ...) |
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1629 | PPCODE: |
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1630 | { |
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1631 | int i; |
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1632 | aio_req req; |
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1633 | |
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1634 | if (grp->fd == 2) |
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1635 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
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1636 | |
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1637 | for (i = 1; i < items; ++i ) |
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1638 | { |
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1639 | if (GIMME_V != G_VOID) |
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1640 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
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1641 | |
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1642 | req = SvAIO_REQ (ST (i)); |
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1643 | |
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1644 | if (req) |
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1645 | { |
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1646 | ++grp->length; |
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1647 | req->grp = grp; |
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1648 | |
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1649 | req->grp_prev = 0; |
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1650 | req->grp_next = grp->grp_first; |
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1651 | |
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1652 | if (grp->grp_first) |
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1653 | grp->grp_first->grp_prev = req; |
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1654 | |
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1655 | grp->grp_first = req; |
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1656 | } |
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1657 | } |
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1658 | } |
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1659 | |
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1660 | void |
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1661 | cancel_subs (aio_req_ornot req) |
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1662 | CODE: |
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1663 | req_cancel_subs (req); |
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1664 | |
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1665 | void |
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1666 | result (aio_req grp, ...) |
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1667 | CODE: |
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1668 | { |
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1669 | int i; |
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1670 | AV *av; |
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1671 | |
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1672 | grp->errorno = errno; |
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1673 | |
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1674 | av = newAV (); |
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1675 | |
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1676 | for (i = 1; i < items; ++i ) |
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1677 | av_push (av, newSVsv (ST (i))); |
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1678 | |
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1679 | SvREFCNT_dec (grp->data); |
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1680 | grp->data = (SV *)av; |
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1681 | } |
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1682 | |
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1683 | void |
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1684 | errno (aio_req grp, int errorno = errno) |
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1685 | CODE: |
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1686 | grp->errorno = errorno; |
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1687 | |
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1688 | void |
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1689 | limit (aio_req grp, int limit) |
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1690 | CODE: |
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1691 | grp->fd2 = limit; |
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1692 | aio_grp_feed (grp); |
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1693 | |
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1694 | void |
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1695 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
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1696 | CODE: |
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1697 | { |
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1698 | SvREFCNT_dec (grp->fh2); |
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1699 | grp->fh2 = newSVsv (callback); |
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1700 | |
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1701 | if (grp->fd2 <= 0) |
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1702 | grp->fd2 = 2; |
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1703 | |
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1704 | aio_grp_feed (grp); |
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1705 | } |
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1706 | |