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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" |
… | |
… | |
8 | #include "autoconf/config.h" |
17 | #include "autoconf/config.h" |
9 | |
18 | |
10 | #include <pthread.h> |
19 | #include <pthread.h> |
11 | |
20 | |
12 | #include <stddef.h> |
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> |
13 | #include <sys/types.h> |
25 | #include <sys/types.h> |
14 | #include <sys/stat.h> |
26 | #include <sys/stat.h> |
15 | #include <limits.h> |
27 | #include <limits.h> |
16 | #include <unistd.h> |
28 | #include <unistd.h> |
17 | #include <fcntl.h> |
29 | #include <fcntl.h> |
… | |
… | |
31 | # else |
43 | # else |
32 | # error sendfile support requested but not available |
44 | # error sendfile support requested but not available |
33 | # endif |
45 | # endif |
34 | #endif |
46 | #endif |
35 | |
47 | |
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48 | /* used for struct dirent, AIX doesn't provide it */ |
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49 | #ifndef NAME_MAX |
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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 |
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57 | |
36 | #if __ia64 |
58 | #if __ia64 |
37 | # 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 |
38 | #else |
62 | #else |
39 | # define STACKSIZE 8192 |
63 | # define STACKSIZE 16384 |
40 | #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; |
41 | |
88 | |
42 | enum { |
89 | enum { |
43 | REQ_QUIT, |
90 | REQ_QUIT, |
44 | REQ_OPEN, REQ_CLOSE, |
91 | REQ_OPEN, REQ_CLOSE, |
45 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
92 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
46 | REQ_SENDFILE, |
93 | REQ_SENDFILE, |
47 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
94 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
48 | REQ_FSYNC, REQ_FDATASYNC, |
95 | REQ_FSYNC, REQ_FDATASYNC, |
49 | REQ_UNLINK, REQ_RMDIR, |
96 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
50 | REQ_READDIR, |
97 | REQ_READDIR, |
51 | REQ_SYMLINK, |
98 | REQ_LINK, REQ_SYMLINK, |
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99 | REQ_GROUP, REQ_NOP, |
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100 | REQ_BUSY, |
52 | }; |
101 | }; |
53 | |
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 | |
54 | typedef struct aio_cb { |
106 | typedef struct aio_cb |
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107 | { |
55 | struct aio_cb *volatile next; |
108 | struct aio_cb *volatile next; |
56 | |
109 | |
57 | int type; |
110 | SV *data, *callback; |
58 | |
111 | SV *fh, *fh2; |
59 | /* should receive a cleanup, with unions */ |
112 | void *dataptr, *data2ptr; |
60 | int fd, fd2; |
113 | Stat_t *statdata; |
61 | off_t offset; |
114 | off_t offset; |
62 | size_t length; |
115 | size_t length; |
63 | 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; |
64 | mode_t mode; /* open */ |
122 | mode_t mode; /* open */ |
65 | int errorno; |
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66 | SV *data, *callback; |
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67 | SV *fh, *fh2; |
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68 | void *dataptr, *data2ptr; |
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69 | STRLEN dataoffset; |
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70 | |
123 | |
71 | 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; |
72 | } aio_cb; |
129 | } aio_cb; |
73 | |
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 | |
74 | typedef aio_cb *aio_req; |
135 | typedef aio_cb *aio_req; |
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136 | typedef aio_cb *aio_req_ornot; |
75 | |
137 | |
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138 | enum { |
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139 | PRI_MIN = -4, |
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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 | |
76 | static int started, wanted; |
149 | static unsigned int started, wanted; |
77 | static volatile int nreqs; |
150 | static volatile unsigned int nreqs, nready, npending; |
78 | static int max_outstanding = 1<<30; |
151 | static volatile unsigned int max_outstanding = 0xffffffff; |
79 | static int respipe [2]; |
152 | static int respipe [2]; |
80 | |
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 | |
81 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
203 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
82 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
204 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
83 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
205 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
84 | |
206 | |
85 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
207 | /* |
86 | 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; |
87 | |
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); |
88 | static void free_req (aio_req req) |
263 | static void req_free (aio_req req); |
89 | { |
264 | static void req_cancel (aio_req req); |
90 | if (req->data) |
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91 | SvREFCNT_dec (req->data); |
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92 | |
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 | { |
93 | if (req->fh) |
269 | if (!req->self) |
94 | SvREFCNT_dec (req->fh); |
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 | } |
95 | |
274 | |
96 | if (req->fh2) |
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 | { |
97 | SvREFCNT_dec (req->fh2); |
314 | SvREFCNT_dec (grp->fh2); |
98 | |
315 | grp->fh2 = 0; |
99 | if (req->statdata) |
316 | break; |
100 | Safefree (req->statdata); |
317 | } |
101 | |
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102 | if (req->callback) |
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103 | SvREFCNT_dec (req->callback); |
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104 | |
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105 | if (req->type == REQ_READDIR && req->result >= 0) |
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106 | free (req->data2ptr); |
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107 | |
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108 | Safefree (req); |
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109 | } |
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110 | |
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111 | static void |
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112 | poll_wait () |
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113 | { |
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114 | if (nreqs && !ress) |
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115 | { |
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 | { |
116 | 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 | |
117 | FD_ZERO(&rfd); |
350 | FD_ZERO(&rfd); |
118 | FD_SET(respipe [0], &rfd); |
351 | FD_SET(respipe [0], &rfd); |
119 | |
352 | |
120 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
353 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
121 | } |
354 | } |
122 | } |
355 | } |
123 | |
356 | |
124 | static int |
357 | static void req_invoke (aio_req req) |
125 | 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); |
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423 | for (i = 0; i <= AvFILL (av); ++i) |
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424 | PUSHs (*av_fetch (av, i, 0)); |
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425 | } |
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426 | break; |
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427 | |
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428 | case REQ_NOP: |
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429 | case REQ_BUSY: |
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430 | break; |
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431 | |
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432 | default: |
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433 | PUSHs (sv_2mortal (newSViv (req->result))); |
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434 | break; |
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435 | } |
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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) |
126 | { |
510 | { |
127 | dSP; |
511 | dSP; |
128 | int count = 0; |
512 | int count = 0; |
129 | int do_croak = 0; |
513 | int do_croak = 0; |
130 | aio_req req; |
514 | aio_req req; |
131 | |
515 | |
132 | for (;;) |
516 | for (;;) |
133 | { |
517 | { |
134 | pthread_mutex_lock (&reslock); |
518 | while (max <= 0 || count < max) |
135 | req = ress; |
|
|
136 | |
|
|
137 | if (req) |
|
|
138 | { |
519 | { |
139 | ress = req->next; |
520 | LOCK (reslock); |
|
|
521 | req = reqq_shift (&res_queue); |
140 | |
522 | |
141 | if (!ress) |
523 | if (req) |
142 | { |
524 | { |
|
|
525 | --npending; |
|
|
526 | |
|
|
527 | if (!res_queue.size) |
|
|
528 | { |
143 | /* read any signals sent by the worker threads */ |
529 | /* read any signals sent by the worker threads */ |
144 | char buf [32]; |
530 | char buf [32]; |
145 | while (read (respipe [0], buf, 32) == 32) |
531 | while (read (respipe [0], buf, 32) == 32) |
|
|
532 | ; |
146 | ; |
533 | } |
147 | |
|
|
148 | rese = 0; |
|
|
149 | } |
534 | } |
150 | } |
|
|
151 | |
535 | |
152 | pthread_mutex_unlock (&reslock); |
536 | UNLOCK (reslock); |
153 | |
537 | |
154 | if (!req) |
538 | if (!req) |
155 | break; |
539 | break; |
156 | |
540 | |
157 | nreqs--; |
541 | --nreqs; |
158 | |
542 | |
159 | if (req->type == REQ_QUIT) |
543 | if (req->type == REQ_QUIT) |
160 | started--; |
544 | --started; |
161 | else |
545 | else if (req->type == REQ_GROUP && req->length) |
162 | { |
|
|
163 | int errorno = errno; |
|
|
164 | errno = req->errorno; |
|
|
165 | |
|
|
166 | if (req->type == REQ_READ) |
|
|
167 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
168 | |
|
|
169 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
170 | SvREADONLY_off (req->data); |
|
|
171 | |
|
|
172 | if (req->statdata) |
|
|
173 | { |
546 | { |
174 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
547 | req->fd = 1; /* mark request as delayed */ |
175 | PL_laststatval = req->result; |
548 | continue; |
176 | PL_statcache = *(req->statdata); |
|
|
177 | } |
|
|
178 | |
|
|
179 | ENTER; |
|
|
180 | PUSHMARK (SP); |
|
|
181 | |
|
|
182 | if (req->type == REQ_READDIR) |
|
|
183 | { |
|
|
184 | SV *rv = &PL_sv_undef; |
|
|
185 | |
|
|
186 | if (req->result >= 0) |
|
|
187 | { |
|
|
188 | char *buf = req->data2ptr; |
|
|
189 | AV *av = newAV (); |
|
|
190 | |
|
|
191 | while (req->result) |
|
|
192 | { |
|
|
193 | SV *sv = newSVpv (buf, 0); |
|
|
194 | |
|
|
195 | av_push (av, sv); |
|
|
196 | buf += SvCUR (sv) + 1; |
|
|
197 | req->result--; |
|
|
198 | } |
|
|
199 | |
|
|
200 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
201 | } |
|
|
202 | |
|
|
203 | XPUSHs (rv); |
|
|
204 | } |
549 | } |
205 | else |
550 | else |
206 | { |
551 | { |
207 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
208 | |
|
|
209 | if (req->type == REQ_OPEN) |
552 | if (req->type == REQ_READ) |
|
|
553 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
554 | |
|
|
555 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
556 | SvREADONLY_off (req->data); |
|
|
557 | |
|
|
558 | if (req->statdata) |
210 | { |
559 | { |
211 | /* convert fd to fh */ |
560 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
212 | SV *fh; |
561 | PL_laststatval = req->result; |
213 | |
562 | PL_statcache = *(req->statdata); |
214 | PUTBACK; |
|
|
215 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
216 | SPAGAIN; |
|
|
217 | |
|
|
218 | fh = SvREFCNT_inc (POPs); |
|
|
219 | |
|
|
220 | PUSHMARK (SP); |
|
|
221 | XPUSHs (sv_2mortal (fh)); |
|
|
222 | } |
563 | } |
|
|
564 | |
|
|
565 | req_invoke (req); |
|
|
566 | |
|
|
567 | count++; |
223 | } |
568 | } |
224 | |
569 | |
225 | if (SvOK (req->callback)) |
570 | req_free (req); |
226 | { |
|
|
227 | PUTBACK; |
|
|
228 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
229 | SPAGAIN; |
|
|
230 | |
|
|
231 | if (SvTRUE (ERRSV)) |
|
|
232 | { |
|
|
233 | free_req (req); |
|
|
234 | croak (0); |
|
|
235 | } |
|
|
236 | } |
|
|
237 | |
|
|
238 | LEAVE; |
|
|
239 | |
|
|
240 | errno = errorno; |
|
|
241 | count++; |
|
|
242 | } |
571 | } |
243 | |
572 | |
244 | free_req (req); |
573 | if (nreqs <= max_outstanding) |
|
|
574 | break; |
|
|
575 | |
|
|
576 | poll_wait (); |
|
|
577 | |
|
|
578 | max = 0; |
245 | } |
579 | } |
246 | |
580 | |
247 | return count; |
581 | return count; |
248 | } |
582 | } |
249 | |
583 | |
250 | static void *aio_proc(void *arg); |
584 | static void *aio_proc(void *arg); |
251 | |
585 | |
252 | static void |
|
|
253 | start_thread (void) |
586 | static void start_thread (void) |
254 | { |
587 | { |
255 | sigset_t fullsigset, oldsigset; |
588 | sigset_t fullsigset, oldsigset; |
256 | pthread_t tid; |
|
|
257 | 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"); |
258 | |
595 | |
259 | pthread_attr_init (&attr); |
596 | pthread_attr_init (&attr); |
260 | pthread_attr_setstacksize (&attr, STACKSIZE); |
597 | pthread_attr_setstacksize (&attr, STACKSIZE); |
261 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
598 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
262 | |
599 | |
263 | sigfillset (&fullsigset); |
600 | sigfillset (&fullsigset); |
|
|
601 | |
|
|
602 | LOCK (wrklock); |
264 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
603 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
265 | |
604 | |
266 | 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; |
267 | started++; |
611 | ++started; |
|
|
612 | } |
|
|
613 | else |
|
|
614 | free (wrk); |
268 | |
615 | |
269 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
616 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
617 | UNLOCK (wrklock); |
270 | } |
618 | } |
271 | |
619 | |
272 | static void |
620 | static void req_send (aio_req req) |
273 | send_req (aio_req req) |
|
|
274 | { |
621 | { |
275 | while (started < wanted && nreqs >= started) |
622 | while (started < wanted && nreqs >= started) |
276 | start_thread (); |
623 | start_thread (); |
277 | |
624 | |
278 | nreqs++; |
625 | ++nreqs; |
279 | |
626 | |
280 | pthread_mutex_lock (&reqlock); |
627 | LOCK (reqlock); |
281 | |
628 | ++nready; |
282 | req->next = 0; |
629 | reqq_push (&req_queue, req); |
283 | |
|
|
284 | if (reqe) |
|
|
285 | { |
|
|
286 | reqe->next = req; |
|
|
287 | reqe = req; |
|
|
288 | } |
|
|
289 | else |
|
|
290 | reqe = reqs = req; |
|
|
291 | |
|
|
292 | pthread_cond_signal (&reqwait); |
630 | pthread_cond_signal (&reqwait); |
293 | pthread_mutex_unlock (&reqlock); |
631 | UNLOCK (reqlock); |
294 | |
|
|
295 | if (nreqs > max_outstanding) |
|
|
296 | for (;;) |
|
|
297 | { |
|
|
298 | poll_cb (); |
|
|
299 | |
|
|
300 | if (nreqs <= max_outstanding) |
|
|
301 | break; |
|
|
302 | |
|
|
303 | poll_wait (); |
|
|
304 | } |
|
|
305 | } |
632 | } |
306 | |
633 | |
307 | static void |
634 | static void end_thread (void) |
308 | end_thread (void) |
|
|
309 | { |
635 | { |
310 | aio_req req; |
636 | aio_req req; |
|
|
637 | |
311 | Newz (0, req, 1, aio_cb); |
638 | Newz (0, req, 1, aio_cb); |
|
|
639 | |
312 | req->type = REQ_QUIT; |
640 | req->type = REQ_QUIT; |
|
|
641 | req->pri = PRI_MAX + PRI_BIAS; |
313 | |
642 | |
314 | send_req (req); |
643 | req_send (req); |
315 | } |
644 | } |
316 | |
645 | |
317 | static void min_parallel (int nthreads) |
646 | static void min_parallel (int nthreads) |
318 | { |
647 | { |
319 | if (wanted < nthreads) |
648 | if (wanted < nthreads) |
… | |
… | |
334 | } |
663 | } |
335 | |
664 | |
336 | while (started > wanted) |
665 | while (started > wanted) |
337 | { |
666 | { |
338 | poll_wait (); |
667 | poll_wait (); |
339 | poll_cb (); |
668 | poll_cb (0); |
340 | } |
669 | } |
341 | } |
670 | } |
342 | |
671 | |
343 | static void create_pipe () |
672 | static void create_pipe () |
344 | { |
673 | { |
… | |
… | |
364 | * 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, |
365 | * but that's your problem, not mine. |
694 | * but that's your problem, not mine. |
366 | */ |
695 | */ |
367 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
696 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
368 | |
697 | |
369 | static ssize_t |
698 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
370 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
371 | { |
699 | { |
372 | ssize_t res; |
700 | ssize_t res; |
373 | off_t ooffset; |
701 | off_t ooffset; |
374 | |
702 | |
375 | pthread_mutex_lock (&preadwritelock); |
703 | LOCK (preadwritelock); |
376 | ooffset = lseek (fd, 0, SEEK_CUR); |
704 | ooffset = lseek (fd, 0, SEEK_CUR); |
377 | lseek (fd, offset, SEEK_SET); |
705 | lseek (fd, offset, SEEK_SET); |
378 | res = read (fd, buf, count); |
706 | res = read (fd, buf, count); |
379 | lseek (fd, ooffset, SEEK_SET); |
707 | lseek (fd, ooffset, SEEK_SET); |
380 | pthread_mutex_unlock (&preadwritelock); |
708 | UNLOCK (preadwritelock); |
381 | |
709 | |
382 | return res; |
710 | return res; |
383 | } |
711 | } |
384 | |
712 | |
385 | static ssize_t |
|
|
386 | 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) |
387 | { |
714 | { |
388 | ssize_t res; |
715 | ssize_t res; |
389 | off_t ooffset; |
716 | off_t ooffset; |
390 | |
717 | |
391 | pthread_mutex_lock (&preadwritelock); |
718 | LOCK (preadwritelock); |
392 | ooffset = lseek (fd, 0, SEEK_CUR); |
719 | ooffset = lseek (fd, 0, SEEK_CUR); |
393 | lseek (fd, offset, SEEK_SET); |
720 | lseek (fd, offset, SEEK_SET); |
394 | res = write (fd, buf, count); |
721 | res = write (fd, buf, count); |
395 | lseek (fd, offset, SEEK_SET); |
722 | lseek (fd, offset, SEEK_SET); |
396 | pthread_mutex_unlock (&preadwritelock); |
723 | UNLOCK (preadwritelock); |
397 | |
724 | |
398 | return res; |
725 | return res; |
399 | } |
726 | } |
400 | #endif |
727 | #endif |
401 | |
728 | |
402 | #if !HAVE_FDATASYNC |
729 | #if !HAVE_FDATASYNC |
403 | # define fdatasync fsync |
730 | # define fdatasync fsync |
404 | #endif |
731 | #endif |
405 | |
732 | |
406 | #if !HAVE_READAHEAD |
733 | #if !HAVE_READAHEAD |
407 | # define readahead aio_readahead |
734 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
408 | |
735 | |
409 | static ssize_t |
736 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
410 | readahead (int fd, off_t offset, size_t count) |
|
|
411 | { |
737 | { |
412 | char readahead_buf[4096]; |
738 | dBUF; |
413 | |
739 | |
414 | while (count > 0) |
740 | while (count > 0) |
415 | { |
741 | { |
416 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
742 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
417 | |
743 | |
418 | pread (fd, readahead_buf, len, offset); |
744 | pread (fd, aio_buf, len, offset); |
419 | offset += len; |
745 | offset += len; |
420 | count -= len; |
746 | count -= len; |
421 | } |
747 | } |
422 | |
748 | |
423 | errno = 0; |
749 | errno = 0; |
424 | } |
750 | } |
|
|
751 | |
425 | #endif |
752 | #endif |
426 | |
753 | |
427 | #if !HAVE_READDIR_R |
754 | #if !HAVE_READDIR_R |
428 | # define readdir_r aio_readdir_r |
755 | # define readdir_r aio_readdir_r |
429 | |
756 | |
430 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
757 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
431 | |
758 | |
432 | static int |
|
|
433 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
759 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
434 | { |
760 | { |
435 | struct dirent *e; |
761 | struct dirent *e; |
436 | int errorno; |
762 | int errorno; |
437 | |
763 | |
438 | pthread_mutex_lock (&readdirlock); |
764 | LOCK (readdirlock); |
439 | |
765 | |
440 | e = readdir (dirp); |
766 | e = readdir (dirp); |
441 | errorno = errno; |
767 | errorno = errno; |
442 | |
768 | |
443 | if (e) |
769 | if (e) |
… | |
… | |
446 | strcpy (ent->d_name, e->d_name); |
772 | strcpy (ent->d_name, e->d_name); |
447 | } |
773 | } |
448 | else |
774 | else |
449 | *res = 0; |
775 | *res = 0; |
450 | |
776 | |
451 | pthread_mutex_unlock (&readdirlock); |
777 | UNLOCK (readdirlock); |
452 | |
778 | |
453 | errno = errorno; |
779 | errno = errorno; |
454 | return e ? 0 : -1; |
780 | return e ? 0 : -1; |
455 | } |
781 | } |
456 | #endif |
782 | #endif |
457 | |
783 | |
458 | /* sendfile always needs emulation */ |
784 | /* sendfile always needs emulation */ |
459 | static ssize_t |
|
|
460 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
785 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
461 | { |
786 | { |
462 | ssize_t res; |
787 | ssize_t res; |
463 | |
788 | |
464 | if (!count) |
789 | if (!count) |
465 | return 0; |
790 | return 0; |
… | |
… | |
476 | { |
801 | { |
477 | off_t sbytes; |
802 | off_t sbytes; |
478 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
803 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
479 | |
804 | |
480 | if (res < 0 && sbytes) |
805 | if (res < 0 && sbytes) |
481 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
806 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
482 | res = sbytes; |
807 | res = sbytes; |
483 | } |
808 | } |
484 | |
809 | |
485 | # elif __hpux |
810 | # elif __hpux |
486 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
811 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
514 | #endif |
839 | #endif |
515 | ) |
840 | ) |
516 | ) |
841 | ) |
517 | { |
842 | { |
518 | /* emulate sendfile. this is a major pain in the ass */ |
843 | /* emulate sendfile. this is a major pain in the ass */ |
519 | char buf[4096]; |
844 | dBUF; |
|
|
845 | |
520 | res = 0; |
846 | res = 0; |
521 | |
847 | |
522 | while (count) |
848 | while (count) |
523 | { |
849 | { |
524 | ssize_t cnt; |
850 | ssize_t cnt; |
525 | |
851 | |
526 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
852 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
527 | |
853 | |
528 | if (cnt <= 0) |
854 | if (cnt <= 0) |
529 | { |
855 | { |
530 | if (cnt && !res) res = -1; |
856 | if (cnt && !res) res = -1; |
531 | break; |
857 | break; |
532 | } |
858 | } |
533 | |
859 | |
534 | cnt = write (ofd, buf, cnt); |
860 | cnt = write (ofd, aio_buf, cnt); |
535 | |
861 | |
536 | if (cnt <= 0) |
862 | if (cnt <= 0) |
537 | { |
863 | { |
538 | if (cnt && !res) res = -1; |
864 | if (cnt && !res) res = -1; |
539 | break; |
865 | break; |
… | |
… | |
547 | |
873 | |
548 | return res; |
874 | return res; |
549 | } |
875 | } |
550 | |
876 | |
551 | /* read a full directory */ |
877 | /* read a full directory */ |
552 | static int |
878 | static void scandir_ (aio_req req, worker *self) |
553 | scandir_ (const char *path, void **namesp) |
|
|
554 | { |
879 | { |
555 | DIR *dirp = opendir (path); |
880 | DIR *dirp; |
556 | union |
881 | union |
557 | { |
882 | { |
558 | struct dirent d; |
883 | struct dirent d; |
559 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
884 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
560 | } u; |
885 | } *u; |
561 | struct dirent *entp; |
886 | struct dirent *entp; |
562 | char *name, *names; |
887 | char *name, *names; |
563 | int memlen = 4096; |
888 | int memlen = 4096; |
564 | int memofs = 0; |
889 | int memofs = 0; |
565 | int res = 0; |
890 | int res = 0; |
566 | int errorno; |
891 | int errorno; |
567 | |
892 | |
568 | if (!dirp) |
893 | LOCK (wrklock); |
569 | return -1; |
894 | self->dirp = dirp = opendir (req->dataptr); |
570 | |
895 | self->dbuf = u = malloc (sizeof (*u)); |
571 | names = malloc (memlen); |
896 | req->data2ptr = names = malloc (memlen); |
|
|
897 | UNLOCK (wrklock); |
572 | |
898 | |
|
|
899 | if (dirp && u && names) |
573 | for (;;) |
900 | for (;;) |
574 | { |
901 | { |
|
|
902 | errno = 0; |
575 | errno = 0, readdir_r (dirp, &u.d, &entp); |
903 | readdir_r (dirp, &u->d, &entp); |
576 | |
904 | |
577 | if (!entp) |
905 | if (!entp) |
578 | break; |
906 | break; |
579 | |
907 | |
580 | name = entp->d_name; |
908 | name = entp->d_name; |
581 | |
909 | |
582 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
910 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
583 | { |
911 | { |
584 | int len = strlen (name) + 1; |
912 | int len = strlen (name) + 1; |
585 | |
913 | |
586 | res++; |
914 | res++; |
587 | |
915 | |
588 | while (memofs + len > memlen) |
916 | while (memofs + len > memlen) |
589 | { |
917 | { |
590 | memlen *= 2; |
918 | memlen *= 2; |
|
|
919 | LOCK (wrklock); |
591 | names = realloc (names, memlen); |
920 | req->data2ptr = names = realloc (names, memlen); |
|
|
921 | UNLOCK (wrklock); |
|
|
922 | |
592 | if (!names) |
923 | if (!names) |
593 | break; |
924 | break; |
594 | } |
925 | } |
595 | |
926 | |
596 | memcpy (names + memofs, name, len); |
927 | memcpy (names + memofs, name, len); |
597 | memofs += len; |
928 | memofs += len; |
598 | } |
929 | } |
599 | } |
930 | } |
600 | |
931 | |
601 | errorno = errno; |
|
|
602 | closedir (dirp); |
|
|
603 | |
|
|
604 | if (errorno) |
932 | if (errno) |
605 | { |
|
|
606 | free (names); |
|
|
607 | errno = errorno; |
|
|
608 | res = -1; |
933 | res = -1; |
609 | } |
934 | |
610 | |
935 | req->result = res; |
611 | *namesp = (void *)names; |
|
|
612 | return res; |
|
|
613 | } |
936 | } |
614 | |
937 | |
615 | /*****************************************************************************/ |
938 | /*****************************************************************************/ |
616 | |
939 | |
617 | static void * |
|
|
618 | aio_proc (void *thr_arg) |
940 | static void *aio_proc (void *thr_arg) |
619 | { |
941 | { |
620 | aio_req req; |
942 | aio_req req; |
621 | int type; |
943 | int type; |
|
|
944 | worker *self = (worker *)thr_arg; |
622 | |
945 | |
623 | do |
946 | do |
624 | { |
947 | { |
625 | pthread_mutex_lock (&reqlock); |
948 | LOCK (reqlock); |
626 | |
949 | |
627 | for (;;) |
950 | for (;;) |
628 | { |
951 | { |
629 | req = reqs; |
952 | self->req = req = reqq_shift (&req_queue); |
630 | |
|
|
631 | if (reqs) |
|
|
632 | { |
|
|
633 | reqs = reqs->next; |
|
|
634 | if (!reqs) reqe = 0; |
|
|
635 | } |
|
|
636 | |
953 | |
637 | if (req) |
954 | if (req) |
638 | break; |
955 | break; |
639 | |
956 | |
640 | pthread_cond_wait (&reqwait, &reqlock); |
957 | pthread_cond_wait (&reqwait, &reqlock); |
641 | } |
958 | } |
642 | |
959 | |
643 | pthread_mutex_unlock (&reqlock); |
960 | --nready; |
|
|
961 | |
|
|
962 | UNLOCK (reqlock); |
644 | |
963 | |
645 | errno = 0; /* strictly unnecessary */ |
964 | errno = 0; /* strictly unnecessary */ |
|
|
965 | type = req->type; /* remember type for QUIT check */ |
646 | |
966 | |
647 | type = req->type; |
967 | if (!(req->flags & FLAG_CANCELLED)) |
648 | |
|
|
649 | switch (type) |
968 | switch (type) |
650 | { |
969 | { |
651 | 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; |
652 | 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; |
653 | |
972 | |
654 | 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; |
655 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
974 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
656 | |
975 | |
657 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
976 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
658 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
977 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
659 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
978 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
660 | |
979 | |
661 | 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; |
662 | case REQ_CLOSE: req->result = close (req->fd); break; |
981 | case REQ_CLOSE: req->result = close (req->fd); break; |
663 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
982 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
664 | 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; |
665 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
986 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
666 | |
987 | |
667 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
988 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
668 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
989 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
669 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
990 | case REQ_READDIR: scandir_ (req, self); break; |
670 | |
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: |
671 | case REQ_QUIT: |
1004 | case REQ_QUIT: |
672 | break; |
1005 | break; |
673 | |
1006 | |
674 | default: |
1007 | default: |
675 | req->result = ENOSYS; |
1008 | req->result = ENOSYS; |
676 | break; |
1009 | break; |
677 | } |
1010 | } |
678 | |
1011 | |
679 | req->errorno = errno; |
1012 | req->errorno = errno; |
680 | |
1013 | |
681 | pthread_mutex_lock (&reslock); |
1014 | LOCK (reslock); |
682 | |
1015 | |
683 | req->next = 0; |
1016 | ++npending; |
684 | |
1017 | |
685 | if (rese) |
1018 | if (!reqq_push (&res_queue, req)) |
686 | { |
|
|
687 | rese->next = req; |
|
|
688 | rese = req; |
|
|
689 | } |
|
|
690 | else |
|
|
691 | { |
|
|
692 | rese = ress = req; |
|
|
693 | |
|
|
694 | /* write a dummy byte to the pipe so fh becomes ready */ |
1019 | /* write a dummy byte to the pipe so fh becomes ready */ |
695 | write (respipe [1], &respipe, 1); |
1020 | write (respipe [1], &respipe, 1); |
696 | } |
|
|
697 | |
1021 | |
698 | pthread_mutex_unlock (&reslock); |
1022 | self->req = 0; |
|
|
1023 | worker_clear (self); |
|
|
1024 | |
|
|
1025 | UNLOCK (reslock); |
699 | } |
1026 | } |
700 | while (type != REQ_QUIT); |
1027 | while (type != REQ_QUIT); |
701 | |
1028 | |
|
|
1029 | LOCK (wrklock); |
|
|
1030 | worker_free (self); |
|
|
1031 | UNLOCK (wrklock); |
|
|
1032 | |
702 | return 0; |
1033 | return 0; |
703 | } |
1034 | } |
704 | |
1035 | |
705 | /*****************************************************************************/ |
1036 | /*****************************************************************************/ |
706 | |
1037 | |
707 | static void atfork_prepare (void) |
1038 | static void atfork_prepare (void) |
708 | { |
1039 | { |
709 | pthread_mutex_lock (&reqlock); |
1040 | LOCK (wrklock); |
710 | pthread_mutex_lock (&reslock); |
1041 | LOCK (reqlock); |
|
|
1042 | LOCK (reslock); |
711 | #if !HAVE_PREADWRITE |
1043 | #if !HAVE_PREADWRITE |
712 | pthread_mutex_lock (&preadwritelock); |
1044 | LOCK (preadwritelock); |
713 | #endif |
1045 | #endif |
714 | #if !HAVE_READDIR_R |
1046 | #if !HAVE_READDIR_R |
715 | pthread_mutex_lock (&readdirlock); |
1047 | LOCK (readdirlock); |
716 | #endif |
1048 | #endif |
717 | } |
1049 | } |
718 | |
1050 | |
719 | static void atfork_parent (void) |
1051 | static void atfork_parent (void) |
720 | { |
1052 | { |
721 | #if !HAVE_READDIR_R |
1053 | #if !HAVE_READDIR_R |
722 | pthread_mutex_unlock (&readdirlock); |
1054 | UNLOCK (readdirlock); |
723 | #endif |
1055 | #endif |
724 | #if !HAVE_PREADWRITE |
1056 | #if !HAVE_PREADWRITE |
725 | pthread_mutex_unlock (&preadwritelock); |
1057 | UNLOCK (preadwritelock); |
726 | #endif |
1058 | #endif |
727 | pthread_mutex_unlock (&reslock); |
1059 | UNLOCK (reslock); |
728 | pthread_mutex_unlock (&reqlock); |
1060 | UNLOCK (reqlock); |
|
|
1061 | UNLOCK (wrklock); |
729 | } |
1062 | } |
730 | |
1063 | |
731 | static void atfork_child (void) |
1064 | static void atfork_child (void) |
732 | { |
1065 | { |
733 | aio_req prv; |
1066 | aio_req prv; |
734 | |
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 | |
735 | started = 0; |
1085 | started = 0; |
736 | |
1086 | nreqs = 0; |
737 | while (reqs) |
|
|
738 | { |
|
|
739 | prv = reqs; |
|
|
740 | reqs = prv->next; |
|
|
741 | free_req (prv); |
|
|
742 | } |
|
|
743 | |
|
|
744 | reqs = reqe = 0; |
|
|
745 | |
|
|
746 | while (ress) |
|
|
747 | { |
|
|
748 | prv = ress; |
|
|
749 | ress = prv->next; |
|
|
750 | free_req (prv); |
|
|
751 | } |
|
|
752 | |
|
|
753 | ress = rese = 0; |
|
|
754 | |
1087 | |
755 | close (respipe [0]); |
1088 | close (respipe [0]); |
756 | close (respipe [1]); |
1089 | close (respipe [1]); |
757 | create_pipe (); |
1090 | create_pipe (); |
758 | |
1091 | |
759 | atfork_parent (); |
1092 | atfork_parent (); |
760 | } |
1093 | } |
761 | |
1094 | |
762 | #define dREQ \ |
1095 | #define dREQ \ |
763 | aio_req req; \ |
1096 | aio_req req; \ |
|
|
1097 | int req_pri = next_pri; \ |
|
|
1098 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
764 | \ |
1099 | \ |
765 | if (SvOK (callback) && !SvROK (callback)) \ |
1100 | if (SvOK (callback) && !SvROK (callback)) \ |
766 | croak ("clalback must be undef or of reference type"); \ |
1101 | croak ("callback must be undef or of reference type"); \ |
767 | \ |
1102 | \ |
768 | Newz (0, req, 1, aio_cb); \ |
1103 | Newz (0, req, 1, aio_cb); \ |
769 | if (!req) \ |
1104 | if (!req) \ |
770 | croak ("out of memory during aio_req allocation"); \ |
1105 | croak ("out of memory during aio_req allocation"); \ |
771 | \ |
1106 | \ |
772 | req->callback = newSVsv (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)); |
773 | |
1115 | |
774 | MODULE = IO::AIO PACKAGE = IO::AIO |
1116 | MODULE = IO::AIO PACKAGE = IO::AIO |
775 | |
1117 | |
776 | PROTOTYPES: ENABLE |
1118 | PROTOTYPES: ENABLE |
777 | |
1119 | |
778 | BOOT: |
1120 | BOOT: |
779 | { |
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 | |
780 | create_pipe (); |
1127 | create_pipe (); |
781 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1128 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
782 | } |
1129 | } |
783 | |
1130 | |
784 | void |
1131 | void |
785 | min_parallel(nthreads) |
1132 | min_parallel (int nthreads) |
786 | int nthreads |
|
|
787 | PROTOTYPE: $ |
1133 | PROTOTYPE: $ |
788 | |
1134 | |
789 | void |
1135 | void |
790 | max_parallel(nthreads) |
1136 | max_parallel (int nthreads) |
791 | int nthreads |
|
|
792 | PROTOTYPE: $ |
1137 | PROTOTYPE: $ |
793 | |
1138 | |
794 | int |
1139 | int |
795 | max_outstanding(nreqs) |
1140 | max_outstanding (int maxreqs) |
796 | int nreqs |
1141 | PROTOTYPE: $ |
797 | PROTOTYPE: $ |
|
|
798 | CODE: |
1142 | CODE: |
799 | RETVAL = max_outstanding; |
1143 | RETVAL = max_outstanding; |
800 | max_outstanding = nreqs; |
1144 | max_outstanding = maxreqs; |
|
|
1145 | OUTPUT: |
|
|
1146 | RETVAL |
801 | |
1147 | |
802 | void |
1148 | void |
803 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
1149 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
804 | SV * pathname |
1150 | SV * pathname |
805 | int flags |
1151 | int flags |
806 | int mode |
1152 | int mode |
807 | SV * callback |
1153 | SV * callback |
808 | PROTOTYPE: $$$;$ |
1154 | PROTOTYPE: $$$;$ |
809 | CODE: |
1155 | PPCODE: |
810 | { |
1156 | { |
811 | dREQ; |
1157 | dREQ; |
812 | |
1158 | |
813 | req->type = REQ_OPEN; |
1159 | req->type = REQ_OPEN; |
814 | req->data = newSVsv (pathname); |
1160 | req->data = newSVsv (pathname); |
815 | req->dataptr = SvPVbyte_nolen (req->data); |
1161 | req->dataptr = SvPVbyte_nolen (req->data); |
816 | req->fd = flags; |
1162 | req->fd = flags; |
817 | req->mode = mode; |
1163 | req->mode = mode; |
818 | |
1164 | |
819 | send_req (req); |
1165 | REQ_SEND; |
820 | } |
1166 | } |
821 | |
1167 | |
822 | void |
1168 | void |
823 | aio_close(fh,callback=&PL_sv_undef) |
1169 | aio_close (fh,callback=&PL_sv_undef) |
824 | SV * fh |
1170 | SV * fh |
825 | SV * callback |
1171 | SV * callback |
826 | PROTOTYPE: $;$ |
1172 | PROTOTYPE: $;$ |
827 | ALIAS: |
1173 | ALIAS: |
828 | aio_close = REQ_CLOSE |
1174 | aio_close = REQ_CLOSE |
829 | aio_fsync = REQ_FSYNC |
1175 | aio_fsync = REQ_FSYNC |
830 | aio_fdatasync = REQ_FDATASYNC |
1176 | aio_fdatasync = REQ_FDATASYNC |
831 | CODE: |
1177 | PPCODE: |
832 | { |
1178 | { |
833 | dREQ; |
1179 | dREQ; |
834 | |
1180 | |
835 | req->type = ix; |
1181 | req->type = ix; |
836 | req->fh = newSVsv (fh); |
1182 | req->fh = newSVsv (fh); |
837 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1183 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
838 | |
1184 | |
839 | send_req (req); |
1185 | REQ_SEND (req); |
840 | } |
1186 | } |
841 | |
1187 | |
842 | void |
1188 | void |
843 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1189 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
844 | SV * fh |
1190 | SV * fh |
845 | UV offset |
1191 | UV offset |
846 | UV length |
1192 | UV length |
847 | SV * data |
1193 | SV * data |
848 | UV dataoffset |
1194 | UV dataoffset |
849 | SV * callback |
1195 | SV * callback |
850 | ALIAS: |
1196 | ALIAS: |
851 | aio_read = REQ_READ |
1197 | aio_read = REQ_READ |
852 | aio_write = REQ_WRITE |
1198 | aio_write = REQ_WRITE |
853 | PROTOTYPE: $$$$$;$ |
1199 | PROTOTYPE: $$$$$;$ |
854 | CODE: |
1200 | PPCODE: |
855 | { |
1201 | { |
856 | aio_req req; |
1202 | aio_req req; |
857 | STRLEN svlen; |
1203 | STRLEN svlen; |
858 | char *svptr = SvPVbyte (data, svlen); |
1204 | char *svptr = SvPVbyte (data, svlen); |
859 | |
1205 | |
… | |
… | |
897 | { |
1243 | { |
898 | SvREADONLY_on (data); |
1244 | SvREADONLY_on (data); |
899 | req->data2ptr = (void *)data; |
1245 | req->data2ptr = (void *)data; |
900 | } |
1246 | } |
901 | |
1247 | |
902 | send_req (req); |
1248 | REQ_SEND; |
903 | } |
1249 | } |
904 | } |
1250 | } |
905 | |
1251 | |
906 | void |
1252 | void |
907 | aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1253 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
908 | SV * out_fh |
1254 | SV * out_fh |
909 | SV * in_fh |
1255 | SV * in_fh |
910 | UV in_offset |
1256 | UV in_offset |
911 | UV length |
1257 | UV length |
912 | SV * callback |
1258 | SV * callback |
913 | PROTOTYPE: $$$$;$ |
1259 | PROTOTYPE: $$$$;$ |
914 | CODE: |
1260 | PPCODE: |
915 | { |
1261 | { |
916 | dREQ; |
1262 | dREQ; |
917 | |
1263 | |
918 | req->type = REQ_SENDFILE; |
1264 | req->type = REQ_SENDFILE; |
919 | req->fh = newSVsv (out_fh); |
1265 | req->fh = newSVsv (out_fh); |
… | |
… | |
921 | req->fh2 = newSVsv (in_fh); |
1267 | req->fh2 = newSVsv (in_fh); |
922 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1268 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
923 | req->offset = in_offset; |
1269 | req->offset = in_offset; |
924 | req->length = length; |
1270 | req->length = length; |
925 | |
1271 | |
926 | send_req (req); |
1272 | REQ_SEND; |
927 | } |
1273 | } |
928 | |
1274 | |
929 | void |
1275 | void |
930 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
1276 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
931 | SV * fh |
1277 | SV * fh |
932 | UV offset |
1278 | UV offset |
933 | IV length |
1279 | IV length |
934 | SV * callback |
1280 | SV * callback |
935 | PROTOTYPE: $$$;$ |
1281 | PROTOTYPE: $$$;$ |
936 | CODE: |
1282 | PPCODE: |
937 | { |
1283 | { |
938 | dREQ; |
1284 | dREQ; |
939 | |
1285 | |
940 | req->type = REQ_READAHEAD; |
1286 | req->type = REQ_READAHEAD; |
941 | req->fh = newSVsv (fh); |
1287 | req->fh = newSVsv (fh); |
942 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1288 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
943 | req->offset = offset; |
1289 | req->offset = offset; |
944 | req->length = length; |
1290 | req->length = length; |
945 | |
1291 | |
946 | send_req (req); |
1292 | REQ_SEND; |
947 | } |
1293 | } |
948 | |
1294 | |
949 | void |
1295 | void |
950 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
1296 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
951 | SV * fh_or_path |
1297 | SV * fh_or_path |
952 | SV * callback |
1298 | SV * callback |
953 | ALIAS: |
1299 | ALIAS: |
954 | aio_stat = REQ_STAT |
1300 | aio_stat = REQ_STAT |
955 | aio_lstat = REQ_LSTAT |
1301 | aio_lstat = REQ_LSTAT |
956 | CODE: |
1302 | PPCODE: |
957 | { |
1303 | { |
958 | dREQ; |
1304 | dREQ; |
959 | |
1305 | |
960 | New (0, req->statdata, 1, Stat_t); |
1306 | New (0, req->statdata, 1, Stat_t); |
961 | if (!req->statdata) |
1307 | if (!req->statdata) |
962 | { |
1308 | { |
963 | free_req (req); |
1309 | req_free (req); |
964 | croak ("out of memory during aio_req->statdata allocation"); |
1310 | croak ("out of memory during aio_req->statdata allocation"); |
965 | } |
1311 | } |
966 | |
1312 | |
967 | if (SvPOK (fh_or_path)) |
1313 | if (SvPOK (fh_or_path)) |
968 | { |
1314 | { |
… | |
… | |
975 | req->type = REQ_FSTAT; |
1321 | req->type = REQ_FSTAT; |
976 | req->fh = newSVsv (fh_or_path); |
1322 | req->fh = newSVsv (fh_or_path); |
977 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1323 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
978 | } |
1324 | } |
979 | |
1325 | |
980 | send_req (req); |
1326 | REQ_SEND; |
981 | } |
1327 | } |
982 | |
1328 | |
983 | void |
1329 | void |
984 | aio_unlink(pathname,callback=&PL_sv_undef) |
1330 | aio_unlink (pathname,callback=&PL_sv_undef) |
985 | SV * pathname |
1331 | SV * pathname |
986 | SV * callback |
1332 | SV * callback |
987 | ALIAS: |
1333 | ALIAS: |
988 | aio_unlink = REQ_UNLINK |
1334 | aio_unlink = REQ_UNLINK |
989 | aio_rmdir = REQ_RMDIR |
1335 | aio_rmdir = REQ_RMDIR |
|
|
1336 | aio_readdir = REQ_READDIR |
990 | CODE: |
1337 | PPCODE: |
991 | { |
1338 | { |
992 | dREQ; |
1339 | dREQ; |
993 | |
1340 | |
994 | req->type = ix; |
1341 | req->type = ix; |
995 | req->data = newSVsv (pathname); |
1342 | req->data = newSVsv (pathname); |
996 | req->dataptr = SvPVbyte_nolen (req->data); |
1343 | req->dataptr = SvPVbyte_nolen (req->data); |
997 | |
1344 | |
998 | send_req (req); |
1345 | REQ_SEND; |
999 | } |
1346 | } |
1000 | |
1347 | |
1001 | void |
1348 | void |
1002 | aio_symlink(oldpath,newpath,callback=&PL_sv_undef) |
1349 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1003 | SV * oldpath |
1350 | SV * oldpath |
1004 | SV * newpath |
1351 | SV * newpath |
1005 | SV * callback |
1352 | SV * callback |
|
|
1353 | ALIAS: |
|
|
1354 | aio_link = REQ_LINK |
|
|
1355 | aio_symlink = REQ_SYMLINK |
|
|
1356 | aio_rename = REQ_RENAME |
1006 | CODE: |
1357 | PPCODE: |
1007 | { |
1358 | { |
1008 | dREQ; |
1359 | dREQ; |
1009 | |
1360 | |
1010 | req->type = REQ_SYMLINK; |
1361 | req->type = ix; |
1011 | req->fh = newSVsv (oldpath); |
1362 | req->fh = newSVsv (oldpath); |
1012 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1363 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1013 | req->data = newSVsv (newpath); |
1364 | req->data = newSVsv (newpath); |
1014 | req->dataptr = SvPVbyte_nolen (req->data); |
1365 | req->dataptr = SvPVbyte_nolen (req->data); |
1015 | |
1366 | |
1016 | send_req (req); |
1367 | REQ_SEND; |
1017 | } |
1368 | } |
1018 | |
1369 | |
1019 | void |
1370 | void |
1020 | aio_readdir(pathname,callback=&PL_sv_undef) |
1371 | aio_busy (delay,callback=&PL_sv_undef) |
1021 | SV * pathname |
1372 | double delay |
1022 | SV * callback |
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: ;$ |
1023 | CODE: |
1414 | CODE: |
1024 | { |
1415 | RETVAL = next_pri - PRI_BIAS; |
1025 | dREQ; |
1416 | if (items > 0) |
1026 | |
1417 | { |
1027 | req->type = REQ_READDIR; |
1418 | if (pri < PRI_MIN) pri = PRI_MIN; |
1028 | req->data = newSVsv (pathname); |
1419 | if (pri > PRI_MAX) pri = PRI_MAX; |
1029 | req->dataptr = SvPVbyte_nolen (req->data); |
1420 | next_pri = pri + PRI_BIAS; |
1030 | |
1421 | } |
1031 | send_req (req); |
1422 | OUTPUT: |
1032 | } |
1423 | RETVAL |
1033 | |
1424 | |
1034 | void |
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 |
1035 | flush() |
1434 | flush () |
1036 | PROTOTYPE: |
1435 | PROTOTYPE: |
1037 | CODE: |
1436 | CODE: |
1038 | while (nreqs) |
1437 | while (nreqs) |
1039 | { |
1438 | { |
1040 | poll_wait (); |
1439 | poll_wait (); |
1041 | poll_cb (); |
1440 | poll_cb (0); |
1042 | } |
1441 | } |
1043 | |
1442 | |
1044 | void |
1443 | void |
1045 | poll() |
1444 | poll() |
1046 | PROTOTYPE: |
1445 | PROTOTYPE: |
1047 | CODE: |
1446 | CODE: |
1048 | if (nreqs) |
1447 | if (nreqs) |
1049 | { |
1448 | { |
1050 | poll_wait (); |
1449 | poll_wait (); |
1051 | poll_cb (); |
1450 | poll_cb (0); |
1052 | } |
1451 | } |
1053 | |
1452 | |
1054 | int |
1453 | int |
1055 | poll_fileno() |
1454 | poll_fileno() |
1056 | PROTOTYPE: |
1455 | PROTOTYPE: |
… | |
… | |
1061 | |
1460 | |
1062 | int |
1461 | int |
1063 | poll_cb(...) |
1462 | poll_cb(...) |
1064 | PROTOTYPE: |
1463 | PROTOTYPE: |
1065 | CODE: |
1464 | CODE: |
1066 | 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); |
1067 | OUTPUT: |
1474 | OUTPUT: |
1068 | RETVAL |
1475 | RETVAL |
1069 | |
1476 | |
1070 | void |
1477 | void |
1071 | poll_wait() |
1478 | poll_wait() |
… | |
… | |
1080 | CODE: |
1487 | CODE: |
1081 | RETVAL = nreqs; |
1488 | RETVAL = nreqs; |
1082 | OUTPUT: |
1489 | OUTPUT: |
1083 | RETVAL |
1490 | RETVAL |
1084 | |
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 | |