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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 | |
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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> |
10 | #include <sys/types.h> |
25 | #include <sys/types.h> |
11 | #include <sys/stat.h> |
26 | #include <sys/stat.h> |
12 | |
27 | #include <limits.h> |
13 | #include <unistd.h> |
28 | #include <unistd.h> |
14 | #include <fcntl.h> |
29 | #include <fcntl.h> |
15 | #include <signal.h> |
30 | #include <signal.h> |
16 | #include <sched.h> |
31 | #include <sched.h> |
17 | |
32 | |
18 | #include <pthread.h> |
33 | #if HAVE_SENDFILE |
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34 | # if __linux |
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35 | # include <sys/sendfile.h> |
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36 | # elif __freebsd |
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37 | # include <sys/socket.h> |
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38 | # include <sys/uio.h> |
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39 | # elif __hpux |
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40 | # include <sys/socket.h> |
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41 | # elif __solaris /* not yet */ |
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42 | # include <sys/sendfile.h> |
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43 | # else |
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44 | # error sendfile support requested but not available |
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45 | # endif |
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46 | #endif |
19 | |
47 | |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
48 | /* used for struct dirent, AIX doesn't provide it */ |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
49 | #ifndef NAME_MAX |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
50 | # define NAME_MAX 4096 |
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51 | #endif |
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52 | |
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53 | #ifndef PTHREAD_STACK_MIN |
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54 | /* care for broken platforms, e.g. windows */ |
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55 | # define PTHREAD_STACK_MIN 16384 |
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56 | #endif |
23 | |
57 | |
24 | #if __ia64 |
58 | #if __ia64 |
25 | # define STACKSIZE 65536 |
59 | # define STACKSIZE 65536 |
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60 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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61 | # define STACKSIZE PTHREAD_STACK_MIN |
26 | #else |
62 | #else |
27 | # define STACKSIZE 4096 |
63 | # define STACKSIZE 16384 |
28 | #endif |
64 | #endif |
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65 | |
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66 | /* wether word reads are potentially non-atomic. |
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67 | * this is conservatice, likely most arches this runs |
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68 | * on have atomic word read/writes. |
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69 | */ |
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70 | #ifndef WORDREAD_UNSAFE |
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71 | # if __i386 || __x86_64 |
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72 | # define WORDREAD_UNSAFE 0 |
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73 | # else |
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74 | # define WORDREAD_UNSAFE 1 |
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75 | # endif |
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76 | #endif |
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77 | |
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78 | /* buffer size for various temporary buffers */ |
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79 | #define AIO_BUFSIZE 65536 |
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80 | |
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81 | #define dBUF \ |
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82 | char *aio_buf; \ |
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83 | LOCK (wrklock); \ |
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84 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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85 | UNLOCK (wrklock); \ |
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86 | if (!aio_buf) \ |
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87 | return -1; |
29 | |
88 | |
30 | enum { |
89 | enum { |
31 | REQ_QUIT, |
90 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
91 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
92 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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93 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
94 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
95 | REQ_FSYNC, REQ_FDATASYNC, |
36 | REQ_UNLINK, REQ_RMDIR, |
96 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
37 | REQ_SYMLINK, |
97 | REQ_READDIR, |
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98 | REQ_LINK, REQ_SYMLINK, |
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99 | REQ_GROUP, REQ_NOP, |
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100 | REQ_BUSY, |
38 | }; |
101 | }; |
39 | |
102 | |
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103 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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104 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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105 | |
40 | typedef struct aio_cb { |
106 | typedef struct aio_cb |
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107 | { |
41 | struct aio_cb *volatile next; |
108 | struct aio_cb *volatile next; |
42 | |
109 | |
43 | int type; |
110 | SV *data, *callback; |
44 | |
111 | SV *fh, *fh2; |
45 | int fd; |
112 | void *dataptr, *data2ptr; |
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113 | Stat_t *statdata; |
46 | off_t offset; |
114 | off_t offset; |
47 | size_t length; |
115 | size_t length; |
48 | ssize_t result; |
116 | ssize_t result; |
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117 | |
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118 | STRLEN dataoffset; |
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119 | int type; |
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120 | int fd, fd2; |
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121 | int errorno; |
49 | mode_t mode; /* open */ |
122 | mode_t mode; /* open */ |
50 | int errorno; |
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51 | SV *data, *callback, *fh; |
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52 | void *dataptr, *data2ptr; |
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53 | STRLEN dataoffset; |
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54 | |
123 | |
55 | Stat_t *statdata; |
124 | unsigned char flags; |
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125 | unsigned char pri; |
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126 | |
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127 | SV *self; /* the perl counterpart of this request, if any */ |
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128 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
56 | } aio_cb; |
129 | } aio_cb; |
57 | |
130 | |
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131 | enum { |
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132 | FLAG_CANCELLED = 0x01, |
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133 | }; |
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134 | |
58 | typedef aio_cb *aio_req; |
135 | typedef aio_cb *aio_req; |
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136 | typedef aio_cb *aio_req_ornot; |
59 | |
137 | |
60 | static int started; |
138 | enum { |
61 | static volatile int nreqs; |
139 | PRI_MIN = -4, |
62 | static int max_outstanding = 1<<30; |
140 | PRI_MAX = 4, |
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141 | |
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142 | DEFAULT_PRI = 0, |
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143 | PRI_BIAS = -PRI_MIN, |
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144 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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145 | }; |
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146 | |
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147 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
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148 | |
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149 | static unsigned int started, wanted; |
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150 | static volatile unsigned int nreqs, nready, npending; |
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151 | static volatile unsigned int max_outstanding = 0xffffffff; |
63 | static int respipe [2]; |
152 | static int respipe [2]; |
64 | |
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 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
203 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
66 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
204 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
67 | static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER; |
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68 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
205 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
69 | |
206 | |
70 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
207 | /* |
71 | static volatile aio_req ress, rese; /* queue start, queue end */ |
208 | * a somewhat faster data structure might be nice, but |
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209 | * with 8 priorities this actually needs <20 insns |
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210 | * per shift, the most expensive operation. |
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211 | */ |
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212 | typedef struct { |
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213 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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214 | int size; |
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215 | } reqq; |
72 | |
216 | |
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217 | static reqq req_queue; |
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218 | static reqq res_queue; |
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219 | |
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220 | int reqq_push (reqq *q, aio_req req) |
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221 | { |
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222 | int pri = req->pri; |
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223 | req->next = 0; |
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224 | |
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225 | if (q->qe[pri]) |
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226 | { |
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227 | q->qe[pri]->next = req; |
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228 | q->qe[pri] = req; |
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229 | } |
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230 | else |
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231 | q->qe[pri] = q->qs[pri] = req; |
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232 | |
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233 | return q->size++; |
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234 | } |
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235 | |
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236 | aio_req reqq_shift (reqq *q) |
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237 | { |
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238 | int pri; |
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239 | |
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240 | if (!q->size) |
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241 | return 0; |
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242 | |
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243 | --q->size; |
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244 | |
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245 | for (pri = NUM_PRI; pri--; ) |
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246 | { |
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247 | aio_req req = q->qs[pri]; |
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248 | |
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249 | if (req) |
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250 | { |
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251 | if (!(q->qs[pri] = req->next)) |
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252 | q->qe[pri] = 0; |
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253 | |
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254 | return req; |
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255 | } |
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256 | } |
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257 | |
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258 | abort (); |
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259 | } |
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260 | |
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261 | static int poll_cb (int max); |
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262 | static void req_invoke (aio_req req); |
73 | static void free_req (aio_req req) |
263 | static void req_free (aio_req req); |
74 | { |
264 | static void req_cancel (aio_req req); |
75 | if (req->data) |
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76 | SvREFCNT_dec (req->data); |
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77 | |
265 | |
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266 | /* must be called at most once */ |
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267 | static SV *req_sv (aio_req req, const char *klass) |
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268 | { |
78 | if (req->fh) |
269 | if (!req->self) |
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270 | { |
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271 | req->self = (SV *)newHV (); |
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272 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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273 | } |
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274 | |
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275 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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276 | } |
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277 | |
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278 | static aio_req SvAIO_REQ (SV *sv) |
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279 | { |
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280 | MAGIC *mg; |
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281 | |
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282 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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283 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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284 | |
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285 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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286 | |
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287 | return mg ? (aio_req)mg->mg_ptr : 0; |
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288 | } |
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289 | |
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290 | static void aio_grp_feed (aio_req grp) |
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291 | { |
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292 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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293 | { |
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294 | int old_len = grp->length; |
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295 | |
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296 | if (grp->fh2 && SvOK (grp->fh2)) |
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297 | { |
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298 | dSP; |
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299 | |
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300 | ENTER; |
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301 | SAVETMPS; |
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302 | PUSHMARK (SP); |
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303 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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304 | PUTBACK; |
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305 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
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306 | SPAGAIN; |
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307 | FREETMPS; |
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308 | LEAVE; |
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309 | } |
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310 | |
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311 | /* stop if no progress has been made */ |
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312 | if (old_len == grp->length) |
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313 | { |
79 | SvREFCNT_dec (req->fh); |
314 | SvREFCNT_dec (grp->fh2); |
80 | |
315 | grp->fh2 = 0; |
81 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
316 | break; |
82 | Safefree (req->statdata); |
317 | } |
83 | |
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84 | if (req->callback) |
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85 | SvREFCNT_dec (req->callback); |
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86 | |
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87 | Safefree (req); |
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88 | } |
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89 | |
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90 | static void |
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91 | poll_wait () |
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92 | { |
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93 | if (nreqs && !ress) |
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94 | { |
318 | } |
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319 | } |
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320 | |
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321 | static void aio_grp_dec (aio_req grp) |
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322 | { |
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323 | --grp->length; |
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324 | |
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325 | /* call feeder, if applicable */ |
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326 | aio_grp_feed (grp); |
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327 | |
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328 | /* finish, if done */ |
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329 | if (!grp->length && grp->fd) |
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330 | { |
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331 | req_invoke (grp); |
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332 | req_free (grp); |
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333 | } |
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334 | } |
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335 | |
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336 | static void poll_wait () |
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337 | { |
95 | fd_set rfd; |
338 | fd_set rfd; |
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339 | |
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340 | while (nreqs) |
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341 | { |
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342 | int size; |
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343 | if (WORDREAD_UNSAFE) LOCK (reslock); |
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344 | size = res_queue.size; |
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345 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
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346 | |
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347 | if (size) |
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348 | return; |
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349 | |
96 | FD_ZERO(&rfd); |
350 | FD_ZERO(&rfd); |
97 | FD_SET(respipe [0], &rfd); |
351 | FD_SET(respipe [0], &rfd); |
98 | |
352 | |
99 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
353 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
100 | } |
354 | } |
101 | } |
355 | } |
102 | |
356 | |
103 | static int |
357 | static void req_invoke (aio_req req) |
104 | poll_cb () |
358 | { |
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359 | dSP; |
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360 | |
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361 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
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362 | { |
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363 | ENTER; |
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364 | SAVETMPS; |
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365 | PUSHMARK (SP); |
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366 | EXTEND (SP, 1); |
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367 | |
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368 | switch (req->type) |
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369 | { |
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370 | case REQ_READDIR: |
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371 | { |
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372 | SV *rv = &PL_sv_undef; |
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373 | |
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374 | if (req->result >= 0) |
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375 | { |
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376 | int i; |
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377 | char *buf = req->data2ptr; |
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378 | AV *av = newAV (); |
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379 | |
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380 | av_extend (av, req->result - 1); |
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381 | |
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382 | for (i = 0; i < req->result; ++i) |
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383 | { |
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384 | SV *sv = newSVpv (buf, 0); |
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385 | |
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386 | av_store (av, i, sv); |
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387 | buf += SvCUR (sv) + 1; |
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388 | } |
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389 | |
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390 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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391 | } |
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392 | |
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393 | PUSHs (rv); |
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394 | } |
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395 | break; |
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396 | |
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397 | case REQ_OPEN: |
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398 | { |
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399 | /* convert fd to fh */ |
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400 | SV *fh; |
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401 | |
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402 | PUSHs (sv_2mortal (newSViv (req->result))); |
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403 | PUTBACK; |
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404 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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405 | SPAGAIN; |
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406 | |
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407 | fh = SvREFCNT_inc (POPs); |
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408 | |
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409 | PUSHMARK (SP); |
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410 | XPUSHs (sv_2mortal (fh)); |
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411 | } |
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412 | break; |
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413 | |
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414 | case REQ_GROUP: |
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415 | req->fd = 2; /* mark group as finished */ |
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416 | |
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417 | if (req->data) |
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418 | { |
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419 | int i; |
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420 | AV *av = (AV *)req->data; |
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421 | |
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422 | EXTEND (SP, AvFILL (av) + 1); |
|
|
423 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
424 | PUSHs (*av_fetch (av, i, 0)); |
|
|
425 | } |
|
|
426 | break; |
|
|
427 | |
|
|
428 | case REQ_NOP: |
|
|
429 | case REQ_BUSY: |
|
|
430 | break; |
|
|
431 | |
|
|
432 | default: |
|
|
433 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
434 | break; |
|
|
435 | } |
|
|
436 | |
|
|
437 | errno = req->errorno; |
|
|
438 | |
|
|
439 | PUTBACK; |
|
|
440 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
441 | SPAGAIN; |
|
|
442 | |
|
|
443 | FREETMPS; |
|
|
444 | LEAVE; |
|
|
445 | } |
|
|
446 | |
|
|
447 | if (req->grp) |
|
|
448 | { |
|
|
449 | aio_req grp = req->grp; |
|
|
450 | |
|
|
451 | /* unlink request */ |
|
|
452 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
453 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
454 | |
|
|
455 | if (grp->grp_first == req) |
|
|
456 | grp->grp_first = req->grp_next; |
|
|
457 | |
|
|
458 | aio_grp_dec (grp); |
|
|
459 | } |
|
|
460 | |
|
|
461 | if (SvTRUE (ERRSV)) |
|
|
462 | { |
|
|
463 | req_free (req); |
|
|
464 | croak (0); |
|
|
465 | } |
|
|
466 | } |
|
|
467 | |
|
|
468 | static void req_free (aio_req req) |
|
|
469 | { |
|
|
470 | if (req->self) |
|
|
471 | { |
|
|
472 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
473 | SvREFCNT_dec (req->self); |
|
|
474 | } |
|
|
475 | |
|
|
476 | SvREFCNT_dec (req->data); |
|
|
477 | SvREFCNT_dec (req->fh); |
|
|
478 | SvREFCNT_dec (req->fh2); |
|
|
479 | SvREFCNT_dec (req->callback); |
|
|
480 | Safefree (req->statdata); |
|
|
481 | |
|
|
482 | if (req->type == REQ_READDIR) |
|
|
483 | free (req->data2ptr); |
|
|
484 | |
|
|
485 | Safefree (req); |
|
|
486 | } |
|
|
487 | |
|
|
488 | static void req_cancel_subs (aio_req grp) |
|
|
489 | { |
|
|
490 | aio_req sub; |
|
|
491 | |
|
|
492 | if (grp->type != REQ_GROUP) |
|
|
493 | return; |
|
|
494 | |
|
|
495 | SvREFCNT_dec (grp->fh2); |
|
|
496 | grp->fh2 = 0; |
|
|
497 | |
|
|
498 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
499 | req_cancel (sub); |
|
|
500 | } |
|
|
501 | |
|
|
502 | static void req_cancel (aio_req req) |
|
|
503 | { |
|
|
504 | req->flags |= FLAG_CANCELLED; |
|
|
505 | |
|
|
506 | req_cancel_subs (req); |
|
|
507 | } |
|
|
508 | |
|
|
509 | static int poll_cb (int max) |
105 | { |
510 | { |
106 | dSP; |
511 | dSP; |
107 | int count = 0; |
512 | int count = 0; |
108 | int do_croak = 0; |
513 | int do_croak = 0; |
109 | aio_req req, prv; |
514 | aio_req req; |
110 | |
515 | |
111 | pthread_mutex_lock (&reslock); |
516 | for (;;) |
112 | |
|
|
113 | { |
517 | { |
114 | /* read any signals sent by the worker threads */ |
518 | while (max <= 0 || count < max) |
115 | char buf [32]; |
|
|
116 | while (read (respipe [0], buf, 32) == 32) |
|
|
117 | ; |
|
|
118 | } |
|
|
119 | |
|
|
120 | req = ress; |
|
|
121 | ress = rese = 0; |
|
|
122 | |
|
|
123 | pthread_mutex_unlock (&reslock); |
|
|
124 | |
|
|
125 | while (req) |
|
|
126 | { |
|
|
127 | nreqs--; |
|
|
128 | |
|
|
129 | if (req->type == REQ_QUIT) |
|
|
130 | started--; |
|
|
131 | else |
|
|
132 | { |
519 | { |
133 | int errorno = errno; |
520 | LOCK (reslock); |
134 | errno = req->errorno; |
521 | req = reqq_shift (&res_queue); |
135 | |
522 | |
136 | if (req->type == REQ_READ) |
523 | if (req) |
137 | SvCUR_set (req->data, req->dataoffset |
|
|
138 | + req->result > 0 ? req->result : 0); |
|
|
139 | |
|
|
140 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
|
|
141 | { |
524 | { |
142 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
525 | --npending; |
143 | PL_laststatval = req->result; |
526 | |
144 | PL_statcache = *(req->statdata); |
527 | if (!res_queue.size) |
|
|
528 | { |
|
|
529 | /* read any signals sent by the worker threads */ |
|
|
530 | char buf [32]; |
|
|
531 | while (read (respipe [0], buf, 32) == 32) |
|
|
532 | ; |
|
|
533 | } |
145 | } |
534 | } |
146 | |
535 | |
147 | ENTER; |
536 | UNLOCK (reslock); |
148 | PUSHMARK (SP); |
|
|
149 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
150 | |
537 | |
|
|
538 | if (!req) |
|
|
539 | break; |
|
|
540 | |
|
|
541 | --nreqs; |
|
|
542 | |
151 | if (req->type == REQ_OPEN) |
543 | if (req->type == REQ_QUIT) |
|
|
544 | --started; |
|
|
545 | else if (req->type == REQ_GROUP && req->length) |
152 | { |
546 | { |
153 | /* convert fd to fh */ |
547 | req->fd = 1; /* mark request as delayed */ |
154 | SV *fh; |
548 | continue; |
155 | |
|
|
156 | PUTBACK; |
|
|
157 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
158 | SPAGAIN; |
|
|
159 | |
|
|
160 | fh = SvREFCNT_inc (POPs); |
|
|
161 | |
|
|
162 | PUSHMARK (SP); |
|
|
163 | XPUSHs (sv_2mortal (fh)); |
|
|
164 | } |
549 | } |
165 | |
550 | else |
166 | if (SvOK (req->callback)) |
|
|
167 | { |
551 | { |
168 | PUTBACK; |
552 | if (req->type == REQ_READ) |
169 | call_sv (req->callback, G_VOID | G_EVAL); |
553 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
170 | SPAGAIN; |
554 | |
|
|
555 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
556 | SvREADONLY_off (req->data); |
|
|
557 | |
|
|
558 | if (req->statdata) |
|
|
559 | { |
|
|
560 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
561 | PL_laststatval = req->result; |
|
|
562 | PL_statcache = *(req->statdata); |
|
|
563 | } |
|
|
564 | |
|
|
565 | req_invoke (req); |
|
|
566 | |
|
|
567 | count++; |
171 | } |
568 | } |
172 | |
569 | |
173 | LEAVE; |
570 | req_free (req); |
174 | |
|
|
175 | do_croak = SvTRUE (ERRSV); |
|
|
176 | |
|
|
177 | errno = errorno; |
|
|
178 | count++; |
|
|
179 | } |
571 | } |
180 | |
572 | |
181 | prv = req; |
573 | if (nreqs <= max_outstanding) |
182 | req = req->next; |
|
|
183 | free_req (prv); |
|
|
184 | |
|
|
185 | if (do_croak) |
|
|
186 | croak (0); |
574 | break; |
|
|
575 | |
|
|
576 | poll_wait (); |
|
|
577 | |
|
|
578 | max = 0; |
187 | } |
579 | } |
188 | |
580 | |
189 | return count; |
581 | return count; |
190 | } |
582 | } |
191 | |
583 | |
192 | static void *aio_proc(void *arg); |
584 | static void *aio_proc(void *arg); |
193 | |
585 | |
194 | static void |
|
|
195 | start_thread (void) |
586 | static void start_thread (void) |
196 | { |
587 | { |
197 | sigset_t fullsigset, oldsigset; |
588 | sigset_t fullsigset, oldsigset; |
198 | pthread_t tid; |
|
|
199 | pthread_attr_t attr; |
589 | pthread_attr_t attr; |
|
|
590 | |
|
|
591 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
592 | |
|
|
593 | if (!wrk) |
|
|
594 | croak ("unable to allocate worker thread data"); |
200 | |
595 | |
201 | pthread_attr_init (&attr); |
596 | pthread_attr_init (&attr); |
202 | pthread_attr_setstacksize (&attr, STACKSIZE); |
597 | pthread_attr_setstacksize (&attr, STACKSIZE); |
203 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
598 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
204 | |
599 | |
205 | sigfillset (&fullsigset); |
600 | sigfillset (&fullsigset); |
|
|
601 | |
|
|
602 | LOCK (wrklock); |
206 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
603 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
207 | |
604 | |
208 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
605 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
606 | { |
|
|
607 | wrk->prev = &wrk_first; |
|
|
608 | wrk->next = wrk_first.next; |
|
|
609 | wrk_first.next->prev = wrk; |
|
|
610 | wrk_first.next = wrk; |
209 | started++; |
611 | ++started; |
|
|
612 | } |
|
|
613 | else |
|
|
614 | free (wrk); |
210 | |
615 | |
211 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
616 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
617 | UNLOCK (wrklock); |
212 | } |
618 | } |
213 | |
619 | |
214 | static void |
620 | static void req_send (aio_req req) |
215 | send_req (aio_req req) |
|
|
216 | { |
621 | { |
|
|
622 | while (started < wanted && nreqs >= started) |
|
|
623 | start_thread (); |
|
|
624 | |
217 | nreqs++; |
625 | ++nreqs; |
218 | |
626 | |
219 | pthread_mutex_lock (&reqlock); |
627 | LOCK (reqlock); |
220 | |
628 | ++nready; |
221 | req->next = 0; |
629 | reqq_push (&req_queue, req); |
222 | |
|
|
223 | if (reqe) |
|
|
224 | { |
|
|
225 | reqe->next = req; |
|
|
226 | reqe = req; |
|
|
227 | } |
|
|
228 | else |
|
|
229 | reqe = reqs = req; |
|
|
230 | |
|
|
231 | pthread_cond_signal (&reqwait); |
630 | pthread_cond_signal (&reqwait); |
232 | pthread_mutex_unlock (&reqlock); |
631 | UNLOCK (reqlock); |
233 | |
|
|
234 | while (nreqs > max_outstanding) |
|
|
235 | { |
|
|
236 | poll_wait (); |
|
|
237 | poll_cb (); |
|
|
238 | } |
|
|
239 | } |
632 | } |
240 | |
633 | |
241 | static void |
634 | static void end_thread (void) |
242 | end_thread (void) |
|
|
243 | { |
635 | { |
244 | aio_req req; |
636 | aio_req req; |
|
|
637 | |
245 | Newz (0, req, 1, aio_cb); |
638 | Newz (0, req, 1, aio_cb); |
|
|
639 | |
246 | req->type = REQ_QUIT; |
640 | req->type = REQ_QUIT; |
|
|
641 | req->pri = PRI_MAX + PRI_BIAS; |
247 | |
642 | |
248 | send_req (req); |
643 | req_send (req); |
249 | } |
644 | } |
250 | |
|
|
251 | |
645 | |
252 | static void min_parallel (int nthreads) |
646 | static void min_parallel (int nthreads) |
253 | { |
647 | { |
254 | while (nthreads > started) |
648 | if (wanted < nthreads) |
255 | start_thread (); |
649 | wanted = nthreads; |
256 | } |
650 | } |
257 | |
651 | |
258 | static void max_parallel (int nthreads) |
652 | static void max_parallel (int nthreads) |
259 | { |
653 | { |
260 | int cur = started; |
654 | int cur = started; |
|
|
655 | |
|
|
656 | if (wanted > nthreads) |
|
|
657 | wanted = nthreads; |
|
|
658 | |
261 | while (cur > nthreads) |
659 | while (cur > wanted) |
262 | { |
660 | { |
263 | end_thread (); |
661 | end_thread (); |
264 | cur--; |
662 | cur--; |
265 | } |
663 | } |
266 | |
664 | |
267 | while (started > nthreads) |
665 | while (started > wanted) |
268 | { |
666 | { |
269 | poll_wait (); |
667 | poll_wait (); |
270 | poll_cb (); |
668 | poll_cb (0); |
271 | } |
669 | } |
272 | } |
670 | } |
273 | |
671 | |
274 | static void create_pipe () |
672 | static void create_pipe () |
275 | { |
673 | { |
… | |
… | |
279 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
677 | if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) |
280 | croak ("cannot set result pipe to nonblocking mode"); |
678 | croak ("cannot set result pipe to nonblocking mode"); |
281 | |
679 | |
282 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
680 | if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
283 | croak ("cannot set result pipe to nonblocking mode"); |
681 | croak ("cannot set result pipe to nonblocking mode"); |
284 | } |
|
|
285 | |
|
|
286 | static void atfork_prepare (void) |
|
|
287 | { |
|
|
288 | pthread_mutex_lock (&frklock); |
|
|
289 | pthread_mutex_lock (&reqlock); |
|
|
290 | pthread_mutex_lock (&reslock); |
|
|
291 | } |
|
|
292 | |
|
|
293 | static void atfork_parent (void) |
|
|
294 | { |
|
|
295 | pthread_mutex_unlock (&reslock); |
|
|
296 | pthread_mutex_unlock (&reqlock); |
|
|
297 | pthread_mutex_unlock (&frklock); |
|
|
298 | } |
|
|
299 | |
|
|
300 | static void atfork_child (void) |
|
|
301 | { |
|
|
302 | int restart = started; |
|
|
303 | started = 0; |
|
|
304 | |
|
|
305 | while (reqs) |
|
|
306 | { |
|
|
307 | free_req (reqs); |
|
|
308 | reqs = reqs->next; |
|
|
309 | } |
|
|
310 | |
|
|
311 | reqs = reqe = 0; |
|
|
312 | |
|
|
313 | while (ress) |
|
|
314 | { |
|
|
315 | free_req (ress); |
|
|
316 | ress = ress->next; |
|
|
317 | } |
|
|
318 | |
|
|
319 | ress = rese = 0; |
|
|
320 | |
|
|
321 | close (respipe [0]); |
|
|
322 | close (respipe [1]); |
|
|
323 | |
|
|
324 | create_pipe (); |
|
|
325 | |
|
|
326 | atfork_parent (); |
|
|
327 | |
|
|
328 | min_parallel (restart); |
|
|
329 | } |
682 | } |
330 | |
683 | |
331 | /*****************************************************************************/ |
684 | /*****************************************************************************/ |
332 | /* work around various missing functions */ |
685 | /* work around various missing functions */ |
333 | |
686 | |
… | |
… | |
338 | /* |
691 | /* |
339 | * make our pread/pwrite safe against themselves, but not against |
692 | * make our pread/pwrite safe against themselves, but not against |
340 | * normal read/write by using a mutex. slows down execution a lot, |
693 | * normal read/write by using a mutex. slows down execution a lot, |
341 | * but that's your problem, not mine. |
694 | * but that's your problem, not mine. |
342 | */ |
695 | */ |
343 | static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER; |
696 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
344 | |
697 | |
345 | static ssize_t |
698 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
346 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
347 | { |
699 | { |
348 | ssize_t res; |
700 | ssize_t res; |
349 | off_t ooffset; |
701 | off_t ooffset; |
350 | |
702 | |
351 | pthread_mutex_lock (&iolock); |
703 | LOCK (preadwritelock); |
352 | ooffset = lseek (fd, 0, SEEK_CUR); |
704 | ooffset = lseek (fd, 0, SEEK_CUR); |
353 | lseek (fd, offset, SEEK_SET); |
705 | lseek (fd, offset, SEEK_SET); |
354 | res = read (fd, buf, count); |
706 | res = read (fd, buf, count); |
355 | lseek (fd, ooffset, SEEK_SET); |
707 | lseek (fd, ooffset, SEEK_SET); |
356 | pthread_mutex_unlock (&iolock); |
708 | UNLOCK (preadwritelock); |
357 | |
709 | |
358 | return res; |
710 | return res; |
359 | } |
711 | } |
360 | |
712 | |
361 | static ssize_t |
|
|
362 | pwrite (int fd, void *buf, size_t count, off_t offset) |
713 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
363 | { |
714 | { |
364 | ssize_t res; |
715 | ssize_t res; |
365 | off_t ooffset; |
716 | off_t ooffset; |
366 | |
717 | |
367 | pthread_mutex_lock (&iolock); |
718 | LOCK (preadwritelock); |
368 | ooffset = lseek (fd, 0, SEEK_CUR); |
719 | ooffset = lseek (fd, 0, SEEK_CUR); |
369 | lseek (fd, offset, SEEK_SET); |
720 | lseek (fd, offset, SEEK_SET); |
370 | res = write (fd, buf, count); |
721 | res = write (fd, buf, count); |
371 | lseek (fd, offset, SEEK_SET); |
722 | lseek (fd, offset, SEEK_SET); |
372 | pthread_mutex_unlock (&iolock); |
723 | UNLOCK (preadwritelock); |
373 | |
724 | |
374 | return res; |
725 | return res; |
375 | } |
726 | } |
376 | #endif |
727 | #endif |
377 | |
728 | |
378 | #if !HAVE_FDATASYNC |
729 | #if !HAVE_FDATASYNC |
379 | # define fdatasync fsync |
730 | # define fdatasync fsync |
380 | #endif |
731 | #endif |
381 | |
732 | |
382 | #if !HAVE_READAHEAD |
733 | #if !HAVE_READAHEAD |
383 | # define readahead aio_readahead |
734 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
384 | |
735 | |
385 | static char readahead_buf[4096]; |
736 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
386 | |
|
|
387 | static ssize_t |
|
|
388 | readahead (int fd, off_t offset, size_t count) |
|
|
389 | { |
737 | { |
|
|
738 | dBUF; |
|
|
739 | |
390 | while (count > 0) |
740 | while (count > 0) |
391 | { |
741 | { |
392 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
742 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
393 | |
743 | |
394 | pread (fd, readahead_buf, len, offset); |
744 | pread (fd, aio_buf, len, offset); |
395 | offset += len; |
745 | offset += len; |
396 | count -= len; |
746 | count -= len; |
397 | } |
747 | } |
398 | |
748 | |
399 | errno = 0; |
749 | errno = 0; |
400 | } |
750 | } |
|
|
751 | |
401 | #endif |
752 | #endif |
402 | |
753 | |
|
|
754 | #if !HAVE_READDIR_R |
|
|
755 | # define readdir_r aio_readdir_r |
|
|
756 | |
|
|
757 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
|
|
758 | |
|
|
759 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
|
|
760 | { |
|
|
761 | struct dirent *e; |
|
|
762 | int errorno; |
|
|
763 | |
|
|
764 | LOCK (readdirlock); |
|
|
765 | |
|
|
766 | e = readdir (dirp); |
|
|
767 | errorno = errno; |
|
|
768 | |
|
|
769 | if (e) |
|
|
770 | { |
|
|
771 | *res = ent; |
|
|
772 | strcpy (ent->d_name, e->d_name); |
|
|
773 | } |
|
|
774 | else |
|
|
775 | *res = 0; |
|
|
776 | |
|
|
777 | UNLOCK (readdirlock); |
|
|
778 | |
|
|
779 | errno = errorno; |
|
|
780 | return e ? 0 : -1; |
|
|
781 | } |
|
|
782 | #endif |
|
|
783 | |
|
|
784 | /* sendfile always needs emulation */ |
|
|
785 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
|
|
786 | { |
|
|
787 | ssize_t res; |
|
|
788 | |
|
|
789 | if (!count) |
|
|
790 | return 0; |
|
|
791 | |
|
|
792 | #if HAVE_SENDFILE |
|
|
793 | # if __linux |
|
|
794 | res = sendfile (ofd, ifd, &offset, count); |
|
|
795 | |
|
|
796 | # elif __freebsd |
|
|
797 | /* |
|
|
798 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
|
799 | * wasted on making it similar to other I/O functions. |
|
|
800 | */ |
|
|
801 | { |
|
|
802 | off_t sbytes; |
|
|
803 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
|
804 | |
|
|
805 | if (res < 0 && sbytes) |
|
|
806 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
|
|
807 | res = sbytes; |
|
|
808 | } |
|
|
809 | |
|
|
810 | # elif __hpux |
|
|
811 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
|
812 | |
|
|
813 | # elif __solaris |
|
|
814 | { |
|
|
815 | struct sendfilevec vec; |
|
|
816 | size_t sbytes; |
|
|
817 | |
|
|
818 | vec.sfv_fd = ifd; |
|
|
819 | vec.sfv_flag = 0; |
|
|
820 | vec.sfv_off = offset; |
|
|
821 | vec.sfv_len = count; |
|
|
822 | |
|
|
823 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
|
824 | |
|
|
825 | if (res < 0 && sbytes) |
|
|
826 | res = sbytes; |
|
|
827 | } |
|
|
828 | |
|
|
829 | # endif |
|
|
830 | #else |
|
|
831 | res = -1; |
|
|
832 | errno = ENOSYS; |
|
|
833 | #endif |
|
|
834 | |
|
|
835 | if (res < 0 |
|
|
836 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
837 | #if __solaris |
|
|
838 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
839 | #endif |
|
|
840 | ) |
|
|
841 | ) |
|
|
842 | { |
|
|
843 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
844 | dBUF; |
|
|
845 | |
|
|
846 | res = 0; |
|
|
847 | |
|
|
848 | while (count) |
|
|
849 | { |
|
|
850 | ssize_t cnt; |
|
|
851 | |
|
|
852 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
|
|
853 | |
|
|
854 | if (cnt <= 0) |
|
|
855 | { |
|
|
856 | if (cnt && !res) res = -1; |
|
|
857 | break; |
|
|
858 | } |
|
|
859 | |
|
|
860 | cnt = write (ofd, aio_buf, cnt); |
|
|
861 | |
|
|
862 | if (cnt <= 0) |
|
|
863 | { |
|
|
864 | if (cnt && !res) res = -1; |
|
|
865 | break; |
|
|
866 | } |
|
|
867 | |
|
|
868 | offset += cnt; |
|
|
869 | res += cnt; |
|
|
870 | count -= cnt; |
|
|
871 | } |
|
|
872 | } |
|
|
873 | |
|
|
874 | return res; |
|
|
875 | } |
|
|
876 | |
|
|
877 | /* read a full directory */ |
|
|
878 | static void scandir_ (aio_req req, worker *self) |
|
|
879 | { |
|
|
880 | DIR *dirp; |
|
|
881 | union |
|
|
882 | { |
|
|
883 | struct dirent d; |
|
|
884 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
|
|
885 | } *u; |
|
|
886 | struct dirent *entp; |
|
|
887 | char *name, *names; |
|
|
888 | int memlen = 4096; |
|
|
889 | int memofs = 0; |
|
|
890 | int res = 0; |
|
|
891 | int errorno; |
|
|
892 | |
|
|
893 | LOCK (wrklock); |
|
|
894 | self->dirp = dirp = opendir (req->dataptr); |
|
|
895 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
896 | req->data2ptr = names = malloc (memlen); |
|
|
897 | UNLOCK (wrklock); |
|
|
898 | |
|
|
899 | if (dirp && u && names) |
|
|
900 | for (;;) |
|
|
901 | { |
|
|
902 | errno = 0; |
|
|
903 | readdir_r (dirp, &u->d, &entp); |
|
|
904 | |
|
|
905 | if (!entp) |
|
|
906 | break; |
|
|
907 | |
|
|
908 | name = entp->d_name; |
|
|
909 | |
|
|
910 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
911 | { |
|
|
912 | int len = strlen (name) + 1; |
|
|
913 | |
|
|
914 | res++; |
|
|
915 | |
|
|
916 | while (memofs + len > memlen) |
|
|
917 | { |
|
|
918 | memlen *= 2; |
|
|
919 | LOCK (wrklock); |
|
|
920 | req->data2ptr = names = realloc (names, memlen); |
|
|
921 | UNLOCK (wrklock); |
|
|
922 | |
|
|
923 | if (!names) |
|
|
924 | break; |
|
|
925 | } |
|
|
926 | |
|
|
927 | memcpy (names + memofs, name, len); |
|
|
928 | memofs += len; |
|
|
929 | } |
|
|
930 | } |
|
|
931 | |
|
|
932 | if (errno) |
|
|
933 | res = -1; |
|
|
934 | |
|
|
935 | req->result = res; |
|
|
936 | } |
|
|
937 | |
403 | /*****************************************************************************/ |
938 | /*****************************************************************************/ |
404 | |
939 | |
405 | static void * |
|
|
406 | aio_proc (void *thr_arg) |
940 | static void *aio_proc (void *thr_arg) |
407 | { |
941 | { |
408 | aio_req req; |
942 | aio_req req; |
409 | int type; |
943 | int type; |
|
|
944 | worker *self = (worker *)thr_arg; |
410 | |
945 | |
411 | do |
946 | do |
412 | { |
947 | { |
413 | pthread_mutex_lock (&reqlock); |
948 | LOCK (reqlock); |
414 | |
949 | |
415 | for (;;) |
950 | for (;;) |
416 | { |
951 | { |
417 | req = reqs; |
952 | self->req = req = reqq_shift (&req_queue); |
418 | |
|
|
419 | if (reqs) |
|
|
420 | { |
|
|
421 | reqs = reqs->next; |
|
|
422 | if (!reqs) reqe = 0; |
|
|
423 | } |
|
|
424 | |
953 | |
425 | if (req) |
954 | if (req) |
426 | break; |
955 | break; |
427 | |
956 | |
428 | pthread_cond_wait (&reqwait, &reqlock); |
957 | pthread_cond_wait (&reqwait, &reqlock); |
429 | } |
958 | } |
430 | |
959 | |
431 | pthread_mutex_unlock (&reqlock); |
960 | --nready; |
|
|
961 | |
|
|
962 | UNLOCK (reqlock); |
432 | |
963 | |
433 | errno = 0; /* strictly unnecessary */ |
964 | errno = 0; /* strictly unnecessary */ |
|
|
965 | type = req->type; /* remember type for QUIT check */ |
434 | |
966 | |
435 | type = req->type; |
967 | if (!(req->flags & FLAG_CANCELLED)) |
436 | |
|
|
437 | switch (type) |
968 | switch (type) |
438 | { |
969 | { |
439 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
970 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
440 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
971 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
441 | |
972 | |
442 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
973 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
974 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
443 | |
975 | |
444 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
976 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
445 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
977 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
446 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
978 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
447 | |
979 | |
448 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
980 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
449 | case REQ_CLOSE: req->result = close (req->fd); break; |
981 | case REQ_CLOSE: req->result = close (req->fd); break; |
450 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
982 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
451 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
983 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
|
|
984 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
|
|
985 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
452 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
986 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
453 | |
987 | |
454 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
988 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
455 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
989 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
|
|
990 | case REQ_READDIR: scandir_ (req, self); break; |
456 | |
991 | |
|
|
992 | case REQ_BUSY: |
|
|
993 | { |
|
|
994 | struct timeval tv; |
|
|
995 | |
|
|
996 | tv.tv_sec = req->fd; |
|
|
997 | tv.tv_usec = req->fd2; |
|
|
998 | |
|
|
999 | req->result = select (0, 0, 0, 0, &tv); |
|
|
1000 | } |
|
|
1001 | |
|
|
1002 | case REQ_GROUP: |
|
|
1003 | case REQ_NOP: |
457 | case REQ_QUIT: |
1004 | case REQ_QUIT: |
458 | break; |
1005 | break; |
459 | |
1006 | |
460 | default: |
1007 | default: |
461 | req->result = ENOSYS; |
1008 | req->result = ENOSYS; |
462 | break; |
1009 | break; |
463 | } |
1010 | } |
464 | |
1011 | |
465 | req->errorno = errno; |
1012 | req->errorno = errno; |
466 | |
1013 | |
467 | pthread_mutex_lock (&reslock); |
1014 | LOCK (reslock); |
468 | |
1015 | |
469 | req->next = 0; |
1016 | ++npending; |
470 | |
1017 | |
471 | if (rese) |
1018 | if (!reqq_push (&res_queue, req)) |
472 | { |
|
|
473 | rese->next = req; |
|
|
474 | rese = req; |
|
|
475 | } |
|
|
476 | else |
|
|
477 | { |
|
|
478 | rese = ress = req; |
|
|
479 | |
|
|
480 | /* write a dummy byte to the pipe so fh becomes ready */ |
1019 | /* write a dummy byte to the pipe so fh becomes ready */ |
481 | write (respipe [1], &respipe, 1); |
1020 | write (respipe [1], &respipe, 1); |
482 | } |
|
|
483 | |
1021 | |
484 | pthread_mutex_unlock (&reslock); |
1022 | self->req = 0; |
|
|
1023 | worker_clear (self); |
|
|
1024 | |
|
|
1025 | UNLOCK (reslock); |
485 | } |
1026 | } |
486 | while (type != REQ_QUIT); |
1027 | while (type != REQ_QUIT); |
487 | |
1028 | |
|
|
1029 | LOCK (wrklock); |
|
|
1030 | worker_free (self); |
|
|
1031 | UNLOCK (wrklock); |
|
|
1032 | |
488 | return 0; |
1033 | return 0; |
|
|
1034 | } |
|
|
1035 | |
|
|
1036 | /*****************************************************************************/ |
|
|
1037 | |
|
|
1038 | static void atfork_prepare (void) |
|
|
1039 | { |
|
|
1040 | LOCK (wrklock); |
|
|
1041 | LOCK (reqlock); |
|
|
1042 | LOCK (reslock); |
|
|
1043 | #if !HAVE_PREADWRITE |
|
|
1044 | LOCK (preadwritelock); |
|
|
1045 | #endif |
|
|
1046 | #if !HAVE_READDIR_R |
|
|
1047 | LOCK (readdirlock); |
|
|
1048 | #endif |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | static void atfork_parent (void) |
|
|
1052 | { |
|
|
1053 | #if !HAVE_READDIR_R |
|
|
1054 | UNLOCK (readdirlock); |
|
|
1055 | #endif |
|
|
1056 | #if !HAVE_PREADWRITE |
|
|
1057 | UNLOCK (preadwritelock); |
|
|
1058 | #endif |
|
|
1059 | UNLOCK (reslock); |
|
|
1060 | UNLOCK (reqlock); |
|
|
1061 | UNLOCK (wrklock); |
|
|
1062 | } |
|
|
1063 | |
|
|
1064 | static void atfork_child (void) |
|
|
1065 | { |
|
|
1066 | aio_req prv; |
|
|
1067 | |
|
|
1068 | while (prv = reqq_shift (&req_queue)) |
|
|
1069 | req_free (prv); |
|
|
1070 | |
|
|
1071 | while (prv = reqq_shift (&res_queue)) |
|
|
1072 | req_free (prv); |
|
|
1073 | |
|
|
1074 | while (wrk_first.next != &wrk_first) |
|
|
1075 | { |
|
|
1076 | worker *wrk = wrk_first.next; |
|
|
1077 | |
|
|
1078 | if (wrk->req) |
|
|
1079 | req_free (wrk->req); |
|
|
1080 | |
|
|
1081 | worker_clear (wrk); |
|
|
1082 | worker_free (wrk); |
|
|
1083 | } |
|
|
1084 | |
|
|
1085 | started = 0; |
|
|
1086 | nreqs = 0; |
|
|
1087 | |
|
|
1088 | close (respipe [0]); |
|
|
1089 | close (respipe [1]); |
|
|
1090 | create_pipe (); |
|
|
1091 | |
|
|
1092 | atfork_parent (); |
489 | } |
1093 | } |
490 | |
1094 | |
491 | #define dREQ \ |
1095 | #define dREQ \ |
492 | aio_req req; \ |
1096 | aio_req req; \ |
|
|
1097 | int req_pri = next_pri; \ |
|
|
1098 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
493 | \ |
1099 | \ |
494 | if (SvOK (callback) && !SvROK (callback)) \ |
1100 | if (SvOK (callback) && !SvROK (callback)) \ |
495 | croak ("clalback must be undef or of reference type"); \ |
1101 | croak ("callback must be undef or of reference type"); \ |
496 | \ |
1102 | \ |
497 | Newz (0, req, 1, aio_cb); \ |
1103 | Newz (0, req, 1, aio_cb); \ |
498 | if (!req) \ |
1104 | if (!req) \ |
499 | croak ("out of memory during aio_req allocation"); \ |
1105 | croak ("out of memory during aio_req allocation"); \ |
500 | \ |
1106 | \ |
501 | req->callback = SvREFCNT_inc (callback); |
1107 | req->callback = newSVsv (callback); \ |
|
|
1108 | req->pri = req_pri |
|
|
1109 | |
|
|
1110 | #define REQ_SEND \ |
|
|
1111 | req_send (req); \ |
|
|
1112 | \ |
|
|
1113 | if (GIMME_V != G_VOID) \ |
|
|
1114 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
502 | |
1115 | |
503 | MODULE = IO::AIO PACKAGE = IO::AIO |
1116 | MODULE = IO::AIO PACKAGE = IO::AIO |
504 | |
1117 | |
505 | PROTOTYPES: ENABLE |
1118 | PROTOTYPES: ENABLE |
506 | |
1119 | |
507 | BOOT: |
1120 | BOOT: |
508 | { |
1121 | { |
|
|
1122 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1123 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
|
|
1124 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
|
|
1125 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1126 | |
509 | create_pipe (); |
1127 | create_pipe (); |
510 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1128 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
511 | } |
1129 | } |
512 | |
1130 | |
513 | void |
1131 | void |
514 | min_parallel(nthreads) |
1132 | min_parallel (int nthreads) |
515 | int nthreads |
|
|
516 | PROTOTYPE: $ |
1133 | PROTOTYPE: $ |
517 | |
1134 | |
518 | void |
1135 | void |
519 | max_parallel(nthreads) |
1136 | max_parallel (int nthreads) |
520 | int nthreads |
|
|
521 | PROTOTYPE: $ |
1137 | PROTOTYPE: $ |
522 | |
1138 | |
523 | int |
1139 | int |
524 | max_outstanding(nreqs) |
1140 | max_outstanding (int maxreqs) |
525 | int nreqs |
1141 | PROTOTYPE: $ |
526 | PROTOTYPE: $ |
|
|
527 | CODE: |
1142 | CODE: |
528 | RETVAL = max_outstanding; |
1143 | RETVAL = max_outstanding; |
529 | max_outstanding = nreqs; |
1144 | max_outstanding = maxreqs; |
|
|
1145 | OUTPUT: |
|
|
1146 | RETVAL |
530 | |
1147 | |
531 | void |
1148 | void |
532 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1149 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
533 | SV * pathname |
1150 | SV * pathname |
534 | int flags |
1151 | int flags |
535 | int mode |
1152 | int mode |
536 | SV * callback |
1153 | SV * callback |
537 | PROTOTYPE: $$$;$ |
1154 | PROTOTYPE: $$$;$ |
538 | CODE: |
1155 | PPCODE: |
539 | { |
1156 | { |
540 | dREQ; |
1157 | dREQ; |
541 | |
1158 | |
542 | req->type = REQ_OPEN; |
1159 | req->type = REQ_OPEN; |
543 | req->data = newSVsv (pathname); |
1160 | req->data = newSVsv (pathname); |
544 | req->dataptr = SvPVbyte_nolen (req->data); |
1161 | req->dataptr = SvPVbyte_nolen (req->data); |
545 | req->fd = flags; |
1162 | req->fd = flags; |
546 | req->mode = mode; |
1163 | req->mode = mode; |
547 | |
1164 | |
548 | send_req (req); |
1165 | REQ_SEND; |
549 | } |
1166 | } |
550 | |
1167 | |
551 | void |
1168 | void |
552 | aio_close(fh,callback=&PL_sv_undef) |
1169 | aio_close (fh,callback=&PL_sv_undef) |
553 | SV * fh |
1170 | SV * fh |
554 | SV * callback |
1171 | SV * callback |
555 | PROTOTYPE: $;$ |
1172 | PROTOTYPE: $;$ |
556 | ALIAS: |
1173 | ALIAS: |
557 | aio_close = REQ_CLOSE |
1174 | aio_close = REQ_CLOSE |
558 | aio_fsync = REQ_FSYNC |
1175 | aio_fsync = REQ_FSYNC |
559 | aio_fdatasync = REQ_FDATASYNC |
1176 | aio_fdatasync = REQ_FDATASYNC |
560 | CODE: |
1177 | PPCODE: |
561 | { |
1178 | { |
562 | dREQ; |
1179 | dREQ; |
563 | |
1180 | |
564 | req->type = ix; |
1181 | req->type = ix; |
565 | req->fh = newSVsv (fh); |
1182 | req->fh = newSVsv (fh); |
566 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1183 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
567 | |
1184 | |
568 | send_req (req); |
1185 | REQ_SEND (req); |
569 | } |
1186 | } |
570 | |
1187 | |
571 | void |
1188 | void |
572 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1189 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
573 | SV * fh |
1190 | SV * fh |
574 | UV offset |
1191 | UV offset |
575 | IV length |
1192 | UV length |
576 | SV * data |
1193 | SV * data |
577 | IV dataoffset |
1194 | UV dataoffset |
578 | SV * callback |
1195 | SV * callback |
579 | ALIAS: |
1196 | ALIAS: |
580 | aio_read = REQ_READ |
1197 | aio_read = REQ_READ |
581 | aio_write = REQ_WRITE |
1198 | aio_write = REQ_WRITE |
582 | PROTOTYPE: $$$$$;$ |
1199 | PROTOTYPE: $$$$$;$ |
583 | CODE: |
1200 | PPCODE: |
584 | { |
1201 | { |
585 | aio_req req; |
1202 | aio_req req; |
586 | STRLEN svlen; |
1203 | STRLEN svlen; |
587 | char *svptr = SvPVbyte (data, svlen); |
1204 | char *svptr = SvPVbyte (data, svlen); |
588 | |
1205 | |
… | |
… | |
619 | : IoOFP (sv_2io (fh))); |
1236 | : IoOFP (sv_2io (fh))); |
620 | req->offset = offset; |
1237 | req->offset = offset; |
621 | req->length = length; |
1238 | req->length = length; |
622 | req->data = SvREFCNT_inc (data); |
1239 | req->data = SvREFCNT_inc (data); |
623 | req->dataptr = (char *)svptr + dataoffset; |
1240 | req->dataptr = (char *)svptr + dataoffset; |
624 | req->callback = SvREFCNT_inc (callback); |
|
|
625 | |
1241 | |
626 | send_req (req); |
1242 | if (!SvREADONLY (data)) |
|
|
1243 | { |
|
|
1244 | SvREADONLY_on (data); |
|
|
1245 | req->data2ptr = (void *)data; |
|
|
1246 | } |
|
|
1247 | |
|
|
1248 | REQ_SEND; |
627 | } |
1249 | } |
628 | } |
1250 | } |
629 | |
1251 | |
630 | void |
1252 | void |
|
|
1253 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
1254 | SV * out_fh |
|
|
1255 | SV * in_fh |
|
|
1256 | UV in_offset |
|
|
1257 | UV length |
|
|
1258 | SV * callback |
|
|
1259 | PROTOTYPE: $$$$;$ |
|
|
1260 | PPCODE: |
|
|
1261 | { |
|
|
1262 | dREQ; |
|
|
1263 | |
|
|
1264 | req->type = REQ_SENDFILE; |
|
|
1265 | req->fh = newSVsv (out_fh); |
|
|
1266 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
1267 | req->fh2 = newSVsv (in_fh); |
|
|
1268 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
1269 | req->offset = in_offset; |
|
|
1270 | req->length = length; |
|
|
1271 | |
|
|
1272 | REQ_SEND; |
|
|
1273 | } |
|
|
1274 | |
|
|
1275 | void |
631 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1276 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
632 | SV * fh |
1277 | SV * fh |
633 | UV offset |
1278 | UV offset |
634 | IV length |
1279 | IV length |
635 | SV * callback |
1280 | SV * callback |
636 | PROTOTYPE: $$$;$ |
1281 | PROTOTYPE: $$$;$ |
637 | CODE: |
1282 | PPCODE: |
638 | { |
1283 | { |
639 | dREQ; |
1284 | dREQ; |
640 | |
1285 | |
641 | req->type = REQ_READAHEAD; |
1286 | req->type = REQ_READAHEAD; |
642 | req->fh = newSVsv (fh); |
1287 | req->fh = newSVsv (fh); |
643 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1288 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
644 | req->offset = offset; |
1289 | req->offset = offset; |
645 | req->length = length; |
1290 | req->length = length; |
646 | |
1291 | |
647 | send_req (req); |
1292 | REQ_SEND; |
648 | } |
1293 | } |
649 | |
1294 | |
650 | void |
1295 | void |
651 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1296 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
652 | SV * fh_or_path |
1297 | SV * fh_or_path |
653 | SV * callback |
1298 | SV * callback |
654 | ALIAS: |
1299 | ALIAS: |
655 | aio_stat = REQ_STAT |
1300 | aio_stat = REQ_STAT |
656 | aio_lstat = REQ_LSTAT |
1301 | aio_lstat = REQ_LSTAT |
657 | CODE: |
1302 | PPCODE: |
658 | { |
1303 | { |
659 | dREQ; |
1304 | dREQ; |
660 | |
1305 | |
661 | New (0, req->statdata, 1, Stat_t); |
1306 | New (0, req->statdata, 1, Stat_t); |
662 | if (!req->statdata) |
1307 | if (!req->statdata) |
|
|
1308 | { |
|
|
1309 | req_free (req); |
663 | croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)"); |
1310 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
1311 | } |
664 | |
1312 | |
665 | if (SvPOK (fh_or_path)) |
1313 | if (SvPOK (fh_or_path)) |
666 | { |
1314 | { |
667 | req->type = ix; |
1315 | req->type = ix; |
668 | req->data = newSVsv (fh_or_path); |
1316 | req->data = newSVsv (fh_or_path); |
… | |
… | |
673 | req->type = REQ_FSTAT; |
1321 | req->type = REQ_FSTAT; |
674 | req->fh = newSVsv (fh_or_path); |
1322 | req->fh = newSVsv (fh_or_path); |
675 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1323 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
676 | } |
1324 | } |
677 | |
1325 | |
678 | send_req (req); |
1326 | REQ_SEND; |
679 | } |
1327 | } |
680 | |
1328 | |
681 | void |
1329 | void |
682 | aio_unlink(pathname,callback=&PL_sv_undef) |
1330 | aio_unlink (pathname,callback=&PL_sv_undef) |
683 | SV * pathname |
1331 | SV * pathname |
684 | SV * callback |
1332 | SV * callback |
685 | ALIAS: |
1333 | ALIAS: |
686 | aio_unlink = REQ_UNLINK |
1334 | aio_unlink = REQ_UNLINK |
687 | aio_rmdir = REQ_RMDIR |
1335 | aio_rmdir = REQ_RMDIR |
|
|
1336 | aio_readdir = REQ_READDIR |
688 | CODE: |
1337 | PPCODE: |
689 | { |
1338 | { |
690 | dREQ; |
1339 | dREQ; |
691 | |
1340 | |
692 | req->type = ix; |
1341 | req->type = ix; |
693 | req->data = newSVsv (pathname); |
1342 | req->data = newSVsv (pathname); |
694 | req->dataptr = SvPVbyte_nolen (req->data); |
1343 | req->dataptr = SvPVbyte_nolen (req->data); |
695 | |
1344 | |
696 | send_req (req); |
1345 | REQ_SEND; |
697 | } |
1346 | } |
698 | |
1347 | |
699 | void |
1348 | void |
700 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1349 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
701 | SV * oldpath |
1350 | SV * oldpath |
702 | SV * newpath |
1351 | SV * newpath |
703 | SV * callback |
1352 | SV * callback |
|
|
1353 | ALIAS: |
|
|
1354 | aio_link = REQ_LINK |
|
|
1355 | aio_symlink = REQ_SYMLINK |
|
|
1356 | aio_rename = REQ_RENAME |
704 | CODE: |
1357 | PPCODE: |
705 | { |
1358 | { |
706 | dREQ; |
1359 | dREQ; |
707 | |
1360 | |
708 | req->type = REQ_SYMLINK; |
1361 | req->type = ix; |
709 | req->fh = newSVsv (oldpath); |
1362 | req->fh = newSVsv (oldpath); |
710 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1363 | req->data2ptr = SvPVbyte_nolen (req->fh); |
711 | req->data = newSVsv (newpath); |
1364 | req->data = newSVsv (newpath); |
712 | req->dataptr = SvPVbyte_nolen (req->data); |
1365 | req->dataptr = SvPVbyte_nolen (req->data); |
713 | |
1366 | |
714 | send_req (req); |
1367 | REQ_SEND; |
715 | } |
1368 | } |
716 | |
1369 | |
717 | void |
1370 | void |
|
|
1371 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1372 | double delay |
|
|
1373 | SV * callback |
|
|
1374 | PPCODE: |
|
|
1375 | { |
|
|
1376 | dREQ; |
|
|
1377 | |
|
|
1378 | req->type = REQ_BUSY; |
|
|
1379 | req->fd = delay < 0. ? 0 : delay; |
|
|
1380 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1381 | |
|
|
1382 | REQ_SEND; |
|
|
1383 | } |
|
|
1384 | |
|
|
1385 | void |
|
|
1386 | aio_group (callback=&PL_sv_undef) |
|
|
1387 | SV * callback |
|
|
1388 | PROTOTYPE: ;$ |
|
|
1389 | PPCODE: |
|
|
1390 | { |
|
|
1391 | dREQ; |
|
|
1392 | |
|
|
1393 | req->type = REQ_GROUP; |
|
|
1394 | req_send (req); |
|
|
1395 | |
|
|
1396 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
|
|
1397 | } |
|
|
1398 | |
|
|
1399 | void |
|
|
1400 | aio_nop (callback=&PL_sv_undef) |
|
|
1401 | SV * callback |
|
|
1402 | PPCODE: |
|
|
1403 | { |
|
|
1404 | dREQ; |
|
|
1405 | |
|
|
1406 | req->type = REQ_NOP; |
|
|
1407 | |
|
|
1408 | REQ_SEND; |
|
|
1409 | } |
|
|
1410 | |
|
|
1411 | int |
|
|
1412 | aioreq_pri (int pri = 0) |
|
|
1413 | PROTOTYPE: ;$ |
|
|
1414 | CODE: |
|
|
1415 | RETVAL = next_pri - PRI_BIAS; |
|
|
1416 | if (items > 0) |
|
|
1417 | { |
|
|
1418 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1419 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1420 | next_pri = pri + PRI_BIAS; |
|
|
1421 | } |
|
|
1422 | OUTPUT: |
|
|
1423 | RETVAL |
|
|
1424 | |
|
|
1425 | void |
|
|
1426 | aioreq_nice (int nice = 0) |
|
|
1427 | CODE: |
|
|
1428 | nice = next_pri - nice; |
|
|
1429 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1430 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1431 | next_pri = nice + PRI_BIAS; |
|
|
1432 | |
|
|
1433 | void |
718 | flush() |
1434 | flush () |
719 | PROTOTYPE: |
1435 | PROTOTYPE: |
720 | CODE: |
1436 | CODE: |
721 | while (nreqs) |
1437 | while (nreqs) |
722 | { |
1438 | { |
723 | poll_wait (); |
1439 | poll_wait (); |
724 | poll_cb (); |
1440 | poll_cb (0); |
725 | } |
1441 | } |
726 | |
1442 | |
727 | void |
1443 | void |
728 | poll() |
1444 | poll() |
729 | PROTOTYPE: |
1445 | PROTOTYPE: |
730 | CODE: |
1446 | CODE: |
731 | if (nreqs) |
1447 | if (nreqs) |
732 | { |
1448 | { |
733 | poll_wait (); |
1449 | poll_wait (); |
734 | poll_cb (); |
1450 | poll_cb (0); |
735 | } |
1451 | } |
736 | |
1452 | |
737 | int |
1453 | int |
738 | poll_fileno() |
1454 | poll_fileno() |
739 | PROTOTYPE: |
1455 | PROTOTYPE: |
… | |
… | |
744 | |
1460 | |
745 | int |
1461 | int |
746 | poll_cb(...) |
1462 | poll_cb(...) |
747 | PROTOTYPE: |
1463 | PROTOTYPE: |
748 | CODE: |
1464 | CODE: |
749 | RETVAL = poll_cb (); |
1465 | RETVAL = poll_cb (0); |
|
|
1466 | OUTPUT: |
|
|
1467 | RETVAL |
|
|
1468 | |
|
|
1469 | int |
|
|
1470 | poll_some(int max = 0) |
|
|
1471 | PROTOTYPE: $ |
|
|
1472 | CODE: |
|
|
1473 | RETVAL = poll_cb (max); |
750 | OUTPUT: |
1474 | OUTPUT: |
751 | RETVAL |
1475 | RETVAL |
752 | |
1476 | |
753 | void |
1477 | void |
754 | poll_wait() |
1478 | poll_wait() |
… | |
… | |
763 | CODE: |
1487 | CODE: |
764 | RETVAL = nreqs; |
1488 | RETVAL = nreqs; |
765 | OUTPUT: |
1489 | OUTPUT: |
766 | RETVAL |
1490 | RETVAL |
767 | |
1491 | |
|
|
1492 | int |
|
|
1493 | nready() |
|
|
1494 | PROTOTYPE: |
|
|
1495 | CODE: |
|
|
1496 | if (WORDREAD_UNSAFE) LOCK (reqlock); |
|
|
1497 | RETVAL = nready; |
|
|
1498 | if (WORDREAD_UNSAFE) UNLOCK (reqlock); |
|
|
1499 | OUTPUT: |
|
|
1500 | RETVAL |
|
|
1501 | |
|
|
1502 | int |
|
|
1503 | npending() |
|
|
1504 | PROTOTYPE: |
|
|
1505 | CODE: |
|
|
1506 | if (WORDREAD_UNSAFE) LOCK (reslock); |
|
|
1507 | RETVAL = npending; |
|
|
1508 | if (WORDREAD_UNSAFE) UNLOCK (reslock); |
|
|
1509 | OUTPUT: |
|
|
1510 | RETVAL |
|
|
1511 | |
|
|
1512 | PROTOTYPES: DISABLE |
|
|
1513 | |
|
|
1514 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1515 | |
|
|
1516 | void |
|
|
1517 | cancel (aio_req_ornot req) |
|
|
1518 | CODE: |
|
|
1519 | req_cancel (req); |
|
|
1520 | |
|
|
1521 | void |
|
|
1522 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1523 | CODE: |
|
|
1524 | SvREFCNT_dec (req->callback); |
|
|
1525 | req->callback = newSVsv (callback); |
|
|
1526 | |
|
|
1527 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1528 | |
|
|
1529 | void |
|
|
1530 | add (aio_req grp, ...) |
|
|
1531 | PPCODE: |
|
|
1532 | { |
|
|
1533 | int i; |
|
|
1534 | aio_req req; |
|
|
1535 | |
|
|
1536 | if (grp->fd == 2) |
|
|
1537 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1538 | |
|
|
1539 | for (i = 1; i < items; ++i ) |
|
|
1540 | { |
|
|
1541 | if (GIMME_V != G_VOID) |
|
|
1542 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1543 | |
|
|
1544 | req = SvAIO_REQ (ST (i)); |
|
|
1545 | |
|
|
1546 | if (req) |
|
|
1547 | { |
|
|
1548 | ++grp->length; |
|
|
1549 | req->grp = grp; |
|
|
1550 | |
|
|
1551 | req->grp_prev = 0; |
|
|
1552 | req->grp_next = grp->grp_first; |
|
|
1553 | |
|
|
1554 | if (grp->grp_first) |
|
|
1555 | grp->grp_first->grp_prev = req; |
|
|
1556 | |
|
|
1557 | grp->grp_first = req; |
|
|
1558 | } |
|
|
1559 | } |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | void |
|
|
1563 | cancel_subs (aio_req_ornot req) |
|
|
1564 | CODE: |
|
|
1565 | req_cancel_subs (req); |
|
|
1566 | |
|
|
1567 | void |
|
|
1568 | result (aio_req grp, ...) |
|
|
1569 | CODE: |
|
|
1570 | { |
|
|
1571 | int i; |
|
|
1572 | AV *av; |
|
|
1573 | |
|
|
1574 | grp->errorno = errno; |
|
|
1575 | |
|
|
1576 | av = newAV (); |
|
|
1577 | |
|
|
1578 | for (i = 1; i < items; ++i ) |
|
|
1579 | av_push (av, newSVsv (ST (i))); |
|
|
1580 | |
|
|
1581 | SvREFCNT_dec (grp->data); |
|
|
1582 | grp->data = (SV *)av; |
|
|
1583 | } |
|
|
1584 | |
|
|
1585 | void |
|
|
1586 | errno (aio_req grp, int errorno = errno) |
|
|
1587 | CODE: |
|
|
1588 | grp->errorno = errorno; |
|
|
1589 | |
|
|
1590 | void |
|
|
1591 | limit (aio_req grp, int limit) |
|
|
1592 | CODE: |
|
|
1593 | grp->fd2 = limit; |
|
|
1594 | aio_grp_feed (grp); |
|
|
1595 | |
|
|
1596 | void |
|
|
1597 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1598 | CODE: |
|
|
1599 | { |
|
|
1600 | SvREFCNT_dec (grp->fh2); |
|
|
1601 | grp->fh2 = newSVsv (callback); |
|
|
1602 | |
|
|
1603 | if (grp->fd2 <= 0) |
|
|
1604 | grp->fd2 = 2; |
|
|
1605 | |
|
|
1606 | aio_grp_feed (grp); |
|
|
1607 | } |
|
|
1608 | |