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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" |
… | |
… | |
34 | # else |
43 | # else |
35 | # error sendfile support requested but not available |
44 | # error sendfile support requested but not available |
36 | # endif |
45 | # endif |
37 | #endif |
46 | #endif |
38 | |
47 | |
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48 | /* number of seconds after which idle threads exit */ |
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49 | #define IDLE_TIMEOUT 10 |
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50 | |
39 | /* used for struct dirent, AIX doesn't provide it */ |
51 | /* used for struct dirent, AIX doesn't provide it */ |
40 | #ifndef NAME_MAX |
52 | #ifndef NAME_MAX |
41 | # define NAME_MAX 4096 |
53 | # define NAME_MAX 4096 |
42 | #endif |
54 | #endif |
43 | |
55 | |
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56 | #ifndef PTHREAD_STACK_MIN |
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57 | /* care for broken platforms, e.g. windows */ |
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58 | # define PTHREAD_STACK_MIN 16384 |
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59 | #endif |
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60 | |
44 | #if __ia64 |
61 | #if __ia64 |
45 | # define STACKSIZE 65536 |
62 | # define STACKSIZE 65536 |
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63 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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64 | # define STACKSIZE PTHREAD_STACK_MIN |
46 | #else |
65 | #else |
47 | # define STACKSIZE 8192 |
66 | # define STACKSIZE 16384 |
48 | #endif |
67 | #endif |
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68 | |
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69 | /* wether word reads are potentially non-atomic. |
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70 | * this is conservatice, likely most arches this runs |
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71 | * on have atomic word read/writes. |
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72 | */ |
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73 | #ifndef WORDACCESS_UNSAFE |
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74 | # if __i386 || __x86_64 |
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75 | # define WORDACCESS_UNSAFE 0 |
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76 | # else |
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77 | # define WORDACCESS_UNSAFE 1 |
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78 | # endif |
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79 | #endif |
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80 | |
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81 | /* buffer size for various temporary buffers */ |
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82 | #define AIO_BUFSIZE 65536 |
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83 | |
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84 | #define dBUF \ |
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85 | char *aio_buf; \ |
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86 | LOCK (wrklock); \ |
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87 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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88 | UNLOCK (wrklock); \ |
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89 | if (!aio_buf) \ |
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90 | return -1; |
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91 | |
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92 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
49 | |
93 | |
50 | enum { |
94 | enum { |
51 | REQ_QUIT, |
95 | REQ_QUIT, |
52 | REQ_OPEN, REQ_CLOSE, |
96 | REQ_OPEN, REQ_CLOSE, |
53 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
97 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
54 | REQ_SENDFILE, |
98 | REQ_SENDFILE, |
55 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
99 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
56 | REQ_FSYNC, REQ_FDATASYNC, |
100 | REQ_FSYNC, REQ_FDATASYNC, |
57 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
101 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
58 | REQ_READDIR, |
102 | REQ_MKNOD, REQ_READDIR, |
59 | REQ_LINK, REQ_SYMLINK, |
103 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
60 | REQ_GROUP, REQ_NOP, |
104 | REQ_GROUP, REQ_NOP, |
61 | REQ_SLEEP, |
105 | REQ_BUSY, |
62 | }; |
106 | }; |
63 | |
107 | |
64 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
108 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
65 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
109 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
66 | |
110 | |
67 | typedef struct aio_cb |
111 | typedef struct aio_cb |
68 | { |
112 | { |
69 | struct aio_cb *volatile next; |
113 | struct aio_cb *volatile next; |
70 | |
114 | |
71 | SV *data, *callback; |
115 | SV *callback, *fh; |
72 | SV *fh, *fh2; |
116 | SV *sv1, *sv2; |
73 | void *dataptr, *data2ptr; |
117 | void *ptr1, *ptr2; |
74 | Stat_t *statdata; |
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75 | off_t offset; |
118 | off_t offs; |
76 | size_t length; |
119 | size_t size; |
77 | ssize_t result; |
120 | ssize_t result; |
78 | |
121 | |
79 | STRLEN dataoffset; |
122 | STRLEN stroffset; |
80 | int type; |
123 | int type; |
81 | int fd, fd2; |
124 | int int1, int2; |
82 | int errorno; |
125 | int errorno; |
83 | mode_t mode; /* open */ |
126 | mode_t mode; /* open */ |
84 | |
127 | |
85 | unsigned char flags; |
128 | unsigned char flags; |
86 | unsigned char pri; |
129 | unsigned char pri; |
… | |
… | |
88 | SV *self; /* the perl counterpart of this request, if any */ |
131 | SV *self; /* the perl counterpart of this request, if any */ |
89 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
132 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
90 | } aio_cb; |
133 | } aio_cb; |
91 | |
134 | |
92 | enum { |
135 | enum { |
93 | FLAG_CANCELLED = 0x01, |
136 | FLAG_CANCELLED = 0x01, /* request was cancelled */ |
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137 | FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ |
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138 | FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */ |
94 | }; |
139 | }; |
95 | |
140 | |
96 | typedef aio_cb *aio_req; |
141 | typedef aio_cb *aio_req; |
97 | typedef aio_cb *aio_req_ornot; |
142 | typedef aio_cb *aio_req_ornot; |
98 | |
143 | |
… | |
… | |
100 | PRI_MIN = -4, |
145 | PRI_MIN = -4, |
101 | PRI_MAX = 4, |
146 | PRI_MAX = 4, |
102 | |
147 | |
103 | DEFAULT_PRI = 0, |
148 | DEFAULT_PRI = 0, |
104 | PRI_BIAS = -PRI_MIN, |
149 | PRI_BIAS = -PRI_MIN, |
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150 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
105 | }; |
151 | }; |
106 | |
152 | |
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153 | #define AIO_TICKS ((1000000 + 1023) >> 10) |
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154 | |
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155 | static unsigned int max_poll_time = 0; |
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156 | static unsigned int max_poll_reqs = 0; |
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157 | |
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158 | /* calculcate time difference in ~1/AIO_TICKS of a second */ |
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159 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
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160 | { |
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161 | return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS |
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162 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
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163 | } |
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164 | |
107 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
165 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
108 | |
166 | |
109 | static int started, wanted; |
167 | static unsigned int started, idle, wanted; |
110 | static volatile int nreqs; |
168 | |
111 | static int max_outstanding = 1<<30; |
169 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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170 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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171 | #else |
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172 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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173 | #endif |
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174 | |
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175 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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176 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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177 | |
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178 | /* worker threads management */ |
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179 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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180 | |
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181 | typedef struct worker { |
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182 | /* locked by wrklock */ |
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183 | struct worker *prev, *next; |
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184 | |
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185 | pthread_t tid; |
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186 | |
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187 | /* locked by reslock, reqlock or wrklock */ |
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188 | aio_req req; /* currently processed request */ |
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189 | void *dbuf; |
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190 | DIR *dirp; |
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191 | } worker; |
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192 | |
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193 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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194 | |
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195 | static void worker_clear (worker *wrk) |
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196 | { |
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197 | if (wrk->dirp) |
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198 | { |
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199 | closedir (wrk->dirp); |
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200 | wrk->dirp = 0; |
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201 | } |
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202 | |
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203 | if (wrk->dbuf) |
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204 | { |
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205 | free (wrk->dbuf); |
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206 | wrk->dbuf = 0; |
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207 | } |
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208 | } |
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209 | |
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210 | static void worker_free (worker *wrk) |
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211 | { |
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212 | wrk->next->prev = wrk->prev; |
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213 | wrk->prev->next = wrk->next; |
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214 | |
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215 | free (wrk); |
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216 | } |
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217 | |
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218 | static volatile unsigned int nreqs, nready, npending; |
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219 | static volatile unsigned int max_idle = 4; |
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220 | static volatile unsigned int max_outstanding = 0xffffffff; |
112 | static int respipe [2]; |
221 | static int respipe [2]; |
113 | |
222 | |
114 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
223 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
115 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
224 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
116 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
225 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
117 | |
226 | |
118 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
227 | #if WORDACCESS_UNSAFE |
119 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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120 | |
228 | |
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229 | static unsigned int get_nready () |
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230 | { |
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231 | unsigned int retval; |
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232 | |
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233 | LOCK (reqlock); |
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234 | retval = nready; |
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235 | UNLOCK (reqlock); |
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236 | |
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237 | return retval; |
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238 | } |
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239 | |
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240 | static unsigned int get_npending () |
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241 | { |
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242 | unsigned int retval; |
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243 | |
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244 | LOCK (reslock); |
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245 | retval = npending; |
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246 | UNLOCK (reslock); |
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247 | |
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248 | return retval; |
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249 | } |
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250 | |
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251 | static unsigned int get_nthreads () |
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252 | { |
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253 | unsigned int retval; |
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254 | |
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255 | LOCK (wrklock); |
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256 | retval = started; |
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257 | UNLOCK (wrklock); |
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258 | |
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259 | return retval; |
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260 | } |
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261 | |
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262 | #else |
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263 | |
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264 | # define get_nready() nready |
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265 | # define get_npending() npending |
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266 | # define get_nthreads() started |
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267 | |
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268 | #endif |
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269 | |
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270 | /* |
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271 | * a somewhat faster data structure might be nice, but |
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272 | * with 8 priorities this actually needs <20 insns |
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273 | * per shift, the most expensive operation. |
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274 | */ |
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275 | typedef struct { |
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276 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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277 | int size; |
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278 | } reqq; |
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279 | |
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280 | static reqq req_queue; |
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281 | static reqq res_queue; |
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282 | |
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283 | int reqq_push (reqq *q, aio_req req) |
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284 | { |
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285 | int pri = req->pri; |
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286 | req->next = 0; |
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287 | |
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288 | if (q->qe[pri]) |
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289 | { |
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290 | q->qe[pri]->next = req; |
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291 | q->qe[pri] = req; |
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292 | } |
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293 | else |
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294 | q->qe[pri] = q->qs[pri] = req; |
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295 | |
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296 | return q->size++; |
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297 | } |
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298 | |
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299 | aio_req reqq_shift (reqq *q) |
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300 | { |
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301 | int pri; |
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302 | |
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303 | if (!q->size) |
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304 | return 0; |
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305 | |
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306 | --q->size; |
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307 | |
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308 | for (pri = NUM_PRI; pri--; ) |
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309 | { |
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310 | aio_req req = q->qs[pri]; |
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311 | |
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312 | if (req) |
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313 | { |
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314 | if (!(q->qs[pri] = req->next)) |
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315 | q->qe[pri] = 0; |
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316 | |
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317 | return req; |
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318 | } |
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319 | } |
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320 | |
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321 | abort (); |
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322 | } |
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323 | |
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324 | static int poll_cb (); |
121 | static void req_invoke (aio_req req); |
325 | static void req_invoke (aio_req req); |
122 | static void req_free (aio_req req); |
326 | static void req_free (aio_req req); |
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327 | static void req_cancel (aio_req req); |
123 | |
328 | |
124 | /* must be called at most once */ |
329 | /* must be called at most once */ |
125 | static SV *req_sv (aio_req req, const char *klass) |
330 | static SV *req_sv (aio_req req, const char *klass) |
126 | { |
331 | { |
127 | if (!req->self) |
332 | if (!req->self) |
… | |
… | |
145 | return mg ? (aio_req)mg->mg_ptr : 0; |
350 | return mg ? (aio_req)mg->mg_ptr : 0; |
146 | } |
351 | } |
147 | |
352 | |
148 | static void aio_grp_feed (aio_req grp) |
353 | static void aio_grp_feed (aio_req grp) |
149 | { |
354 | { |
150 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
355 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
151 | { |
356 | { |
152 | int old_len = grp->length; |
357 | int old_len = grp->size; |
153 | |
358 | |
154 | if (grp->fh2 && SvOK (grp->fh2)) |
359 | if (grp->sv2 && SvOK (grp->sv2)) |
155 | { |
360 | { |
156 | dSP; |
361 | dSP; |
157 | |
362 | |
158 | ENTER; |
363 | ENTER; |
159 | SAVETMPS; |
364 | SAVETMPS; |
160 | PUSHMARK (SP); |
365 | PUSHMARK (SP); |
161 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
366 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
162 | PUTBACK; |
367 | PUTBACK; |
163 | call_sv (grp->fh2, G_VOID | G_EVAL); |
368 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
164 | SPAGAIN; |
369 | SPAGAIN; |
165 | FREETMPS; |
370 | FREETMPS; |
166 | LEAVE; |
371 | LEAVE; |
167 | } |
372 | } |
168 | |
373 | |
169 | /* stop if no progress has been made */ |
374 | /* stop if no progress has been made */ |
170 | if (old_len == grp->length) |
375 | if (old_len == grp->size) |
171 | { |
376 | { |
172 | SvREFCNT_dec (grp->fh2); |
377 | SvREFCNT_dec (grp->sv2); |
173 | grp->fh2 = 0; |
378 | grp->sv2 = 0; |
174 | break; |
379 | break; |
175 | } |
380 | } |
176 | } |
381 | } |
177 | } |
382 | } |
178 | |
383 | |
179 | static void aio_grp_dec (aio_req grp) |
384 | static void aio_grp_dec (aio_req grp) |
180 | { |
385 | { |
181 | --grp->length; |
386 | --grp->size; |
182 | |
387 | |
183 | /* call feeder, if applicable */ |
388 | /* call feeder, if applicable */ |
184 | aio_grp_feed (grp); |
389 | aio_grp_feed (grp); |
185 | |
390 | |
186 | /* finish, if done */ |
391 | /* finish, if done */ |
187 | if (!grp->length && grp->fd) |
392 | if (!grp->size && grp->int1) |
188 | { |
393 | { |
189 | req_invoke (grp); |
394 | req_invoke (grp); |
190 | req_free (grp); |
395 | req_free (grp); |
191 | } |
396 | } |
192 | } |
397 | } |
193 | |
398 | |
194 | static void poll_wait () |
399 | static void req_invoke (aio_req req) |
195 | { |
400 | { |
196 | fd_set rfd; |
401 | dSP; |
197 | |
402 | |
198 | while (nreqs) |
403 | if (req->flags & FLAG_SV1_RO_OFF) |
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404 | SvREADONLY_off (req->sv1); |
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405 | |
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406 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
199 | { |
407 | { |
200 | aio_req req; |
408 | ENTER; |
201 | pthread_mutex_lock (&reslock); |
409 | SAVETMPS; |
202 | req = ress; |
410 | PUSHMARK (SP); |
203 | pthread_mutex_unlock (&reslock); |
411 | EXTEND (SP, 1); |
204 | |
412 | |
205 | if (req) |
413 | switch (req->type) |
206 | return; |
414 | { |
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415 | case REQ_READDIR: |
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416 | { |
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417 | SV *rv = &PL_sv_undef; |
207 | |
418 | |
208 | FD_ZERO(&rfd); |
419 | if (req->result >= 0) |
209 | FD_SET(respipe [0], &rfd); |
420 | { |
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421 | int i; |
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422 | char *buf = req->ptr2; |
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423 | AV *av = newAV (); |
210 | |
424 | |
211 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
425 | av_extend (av, req->result - 1); |
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426 | |
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427 | for (i = 0; i < req->result; ++i) |
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428 | { |
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429 | SV *sv = newSVpv (buf, 0); |
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430 | |
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431 | av_store (av, i, sv); |
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432 | buf += SvCUR (sv) + 1; |
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433 | } |
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434 | |
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435 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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436 | } |
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437 | |
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438 | PUSHs (rv); |
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439 | } |
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440 | break; |
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441 | |
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442 | case REQ_OPEN: |
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443 | { |
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444 | /* convert fd to fh */ |
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445 | SV *fh; |
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446 | |
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447 | PUSHs (sv_2mortal (newSViv (req->result))); |
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448 | PUTBACK; |
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449 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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450 | SPAGAIN; |
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451 | |
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452 | fh = SvREFCNT_inc (POPs); |
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453 | |
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454 | PUSHMARK (SP); |
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455 | XPUSHs (sv_2mortal (fh)); |
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456 | } |
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457 | break; |
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458 | |
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459 | case REQ_GROUP: |
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460 | req->int1 = 2; /* mark group as finished */ |
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461 | |
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462 | if (req->sv1) |
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463 | { |
|
|
464 | int i; |
|
|
465 | AV *av = (AV *)req->sv1; |
|
|
466 | |
|
|
467 | EXTEND (SP, AvFILL (av) + 1); |
|
|
468 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
469 | PUSHs (*av_fetch (av, i, 0)); |
|
|
470 | } |
|
|
471 | break; |
|
|
472 | |
|
|
473 | case REQ_NOP: |
|
|
474 | case REQ_BUSY: |
|
|
475 | break; |
|
|
476 | |
|
|
477 | case REQ_READLINK: |
|
|
478 | if (req->result > 0) |
|
|
479 | { |
|
|
480 | SvCUR_set (req->sv1, req->result); |
|
|
481 | *SvEND (req->sv1) = 0; |
|
|
482 | PUSHs (req->sv1); |
|
|
483 | } |
|
|
484 | break; |
|
|
485 | |
|
|
486 | case REQ_STAT: |
|
|
487 | case REQ_LSTAT: |
|
|
488 | case REQ_FSTAT: |
|
|
489 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
490 | PL_laststatval = req->result; |
|
|
491 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
492 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
493 | break; |
|
|
494 | |
|
|
495 | case REQ_READ: |
|
|
496 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
497 | *SvEND (req->sv1) = 0; |
|
|
498 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
499 | break; |
|
|
500 | |
|
|
501 | default: |
|
|
502 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
503 | break; |
|
|
504 | } |
|
|
505 | |
|
|
506 | errno = req->errorno; |
|
|
507 | |
|
|
508 | PUTBACK; |
|
|
509 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
510 | SPAGAIN; |
|
|
511 | |
|
|
512 | FREETMPS; |
|
|
513 | LEAVE; |
212 | } |
514 | } |
213 | } |
|
|
214 | |
515 | |
215 | static void req_invoke (aio_req req) |
516 | if (req->grp) |
216 | { |
|
|
217 | dSP; |
|
|
218 | int errorno = errno; |
|
|
219 | |
|
|
220 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
|
|
221 | return; |
|
|
222 | |
|
|
223 | errno = req->errorno; |
|
|
224 | |
|
|
225 | ENTER; |
|
|
226 | SAVETMPS; |
|
|
227 | PUSHMARK (SP); |
|
|
228 | EXTEND (SP, 1); |
|
|
229 | |
|
|
230 | switch (req->type) |
|
|
231 | { |
517 | { |
232 | case REQ_READDIR: |
518 | aio_req grp = req->grp; |
233 | { |
|
|
234 | SV *rv = &PL_sv_undef; |
|
|
235 | |
519 | |
236 | if (req->result >= 0) |
520 | /* unlink request */ |
237 | { |
521 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
238 | char *buf = req->data2ptr; |
522 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
239 | AV *av = newAV (); |
|
|
240 | |
523 | |
241 | while (req->result) |
524 | if (grp->grp_first == req) |
242 | { |
525 | grp->grp_first = req->grp_next; |
243 | SV *sv = newSVpv (buf, 0); |
|
|
244 | |
526 | |
245 | av_push (av, sv); |
527 | aio_grp_dec (grp); |
246 | buf += SvCUR (sv) + 1; |
|
|
247 | req->result--; |
|
|
248 | } |
|
|
249 | |
|
|
250 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
251 | } |
|
|
252 | |
|
|
253 | PUSHs (rv); |
|
|
254 | } |
|
|
255 | break; |
|
|
256 | |
|
|
257 | case REQ_OPEN: |
|
|
258 | { |
|
|
259 | /* convert fd to fh */ |
|
|
260 | SV *fh; |
|
|
261 | |
|
|
262 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
263 | PUTBACK; |
|
|
264 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
265 | SPAGAIN; |
|
|
266 | |
|
|
267 | fh = SvREFCNT_inc (POPs); |
|
|
268 | |
|
|
269 | PUSHMARK (SP); |
|
|
270 | XPUSHs (sv_2mortal (fh)); |
|
|
271 | } |
|
|
272 | break; |
|
|
273 | |
|
|
274 | case REQ_GROUP: |
|
|
275 | req->fd = 2; /* mark group as finished */ |
|
|
276 | |
|
|
277 | if (req->data) |
|
|
278 | { |
|
|
279 | int i; |
|
|
280 | AV *av = (AV *)req->data; |
|
|
281 | |
|
|
282 | EXTEND (SP, AvFILL (av) + 1); |
|
|
283 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
284 | PUSHs (*av_fetch (av, i, 0)); |
|
|
285 | } |
|
|
286 | break; |
|
|
287 | |
|
|
288 | case REQ_NOP: |
|
|
289 | case REQ_SLEEP: |
|
|
290 | break; |
|
|
291 | |
|
|
292 | default: |
|
|
293 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
294 | break; |
|
|
295 | } |
528 | } |
296 | |
|
|
297 | |
|
|
298 | PUTBACK; |
|
|
299 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
300 | SPAGAIN; |
|
|
301 | |
|
|
302 | FREETMPS; |
|
|
303 | LEAVE; |
|
|
304 | |
|
|
305 | errno = errorno; |
|
|
306 | |
529 | |
307 | if (SvTRUE (ERRSV)) |
530 | if (SvTRUE (ERRSV)) |
308 | { |
531 | { |
309 | req_free (req); |
532 | req_free (req); |
310 | croak (0); |
533 | croak (0); |
311 | } |
534 | } |
312 | } |
535 | } |
313 | |
536 | |
314 | static void req_free (aio_req req) |
537 | static void req_free (aio_req req) |
315 | { |
538 | { |
316 | if (req->grp) |
|
|
317 | { |
|
|
318 | aio_req grp = req->grp; |
|
|
319 | |
|
|
320 | /* unlink request */ |
|
|
321 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
322 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
323 | |
|
|
324 | if (grp->grp_first == req) |
|
|
325 | grp->grp_first = req->grp_next; |
|
|
326 | |
|
|
327 | aio_grp_dec (grp); |
|
|
328 | } |
|
|
329 | |
|
|
330 | if (req->self) |
539 | if (req->self) |
331 | { |
540 | { |
332 | sv_unmagic (req->self, PERL_MAGIC_ext); |
541 | sv_unmagic (req->self, PERL_MAGIC_ext); |
333 | SvREFCNT_dec (req->self); |
542 | SvREFCNT_dec (req->self); |
334 | } |
543 | } |
335 | |
544 | |
336 | SvREFCNT_dec (req->data); |
|
|
337 | SvREFCNT_dec (req->fh); |
545 | SvREFCNT_dec (req->fh); |
|
|
546 | SvREFCNT_dec (req->sv1); |
338 | SvREFCNT_dec (req->fh2); |
547 | SvREFCNT_dec (req->sv2); |
339 | SvREFCNT_dec (req->callback); |
548 | SvREFCNT_dec (req->callback); |
340 | Safefree (req->statdata); |
|
|
341 | |
549 | |
342 | if (req->type == REQ_READDIR && req->result >= 0) |
550 | if (req->flags & FLAG_PTR2_FREE) |
343 | free (req->data2ptr); |
551 | free (req->ptr2); |
344 | |
552 | |
345 | Safefree (req); |
553 | Safefree (req); |
346 | } |
554 | } |
347 | |
555 | |
|
|
556 | static void req_cancel_subs (aio_req grp) |
|
|
557 | { |
|
|
558 | aio_req sub; |
|
|
559 | |
|
|
560 | if (grp->type != REQ_GROUP) |
|
|
561 | return; |
|
|
562 | |
|
|
563 | SvREFCNT_dec (grp->sv2); |
|
|
564 | grp->sv2 = 0; |
|
|
565 | |
|
|
566 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
567 | req_cancel (sub); |
|
|
568 | } |
|
|
569 | |
348 | static void req_cancel (aio_req req) |
570 | static void req_cancel (aio_req req) |
349 | { |
571 | { |
350 | req->flags |= FLAG_CANCELLED; |
572 | req->flags |= FLAG_CANCELLED; |
351 | |
573 | |
352 | if (req->type == REQ_GROUP) |
574 | req_cancel_subs (req); |
353 | { |
|
|
354 | aio_req sub; |
|
|
355 | |
|
|
356 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
|
357 | req_cancel (sub); |
|
|
358 | } |
|
|
359 | } |
|
|
360 | |
|
|
361 | static int poll_cb () |
|
|
362 | { |
|
|
363 | dSP; |
|
|
364 | int count = 0; |
|
|
365 | int do_croak = 0; |
|
|
366 | aio_req req; |
|
|
367 | |
|
|
368 | for (;;) |
|
|
369 | { |
|
|
370 | pthread_mutex_lock (&reslock); |
|
|
371 | req = ress; |
|
|
372 | |
|
|
373 | if (req) |
|
|
374 | { |
|
|
375 | ress = req->next; |
|
|
376 | |
|
|
377 | if (!ress) |
|
|
378 | { |
|
|
379 | /* read any signals sent by the worker threads */ |
|
|
380 | char buf [32]; |
|
|
381 | while (read (respipe [0], buf, 32) == 32) |
|
|
382 | ; |
|
|
383 | |
|
|
384 | rese = 0; |
|
|
385 | } |
|
|
386 | } |
|
|
387 | |
|
|
388 | pthread_mutex_unlock (&reslock); |
|
|
389 | |
|
|
390 | if (!req) |
|
|
391 | break; |
|
|
392 | |
|
|
393 | --nreqs; |
|
|
394 | |
|
|
395 | if (req->type == REQ_QUIT) |
|
|
396 | started--; |
|
|
397 | else if (req->type == REQ_GROUP && req->length) |
|
|
398 | { |
|
|
399 | req->fd = 1; /* mark request as delayed */ |
|
|
400 | continue; |
|
|
401 | } |
|
|
402 | else |
|
|
403 | { |
|
|
404 | if (req->type == REQ_READ) |
|
|
405 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
406 | |
|
|
407 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
408 | SvREADONLY_off (req->data); |
|
|
409 | |
|
|
410 | if (req->statdata) |
|
|
411 | { |
|
|
412 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
413 | PL_laststatval = req->result; |
|
|
414 | PL_statcache = *(req->statdata); |
|
|
415 | } |
|
|
416 | |
|
|
417 | req_invoke (req); |
|
|
418 | |
|
|
419 | count++; |
|
|
420 | } |
|
|
421 | |
|
|
422 | req_free (req); |
|
|
423 | } |
|
|
424 | |
|
|
425 | return count; |
|
|
426 | } |
575 | } |
427 | |
576 | |
428 | static void *aio_proc(void *arg); |
577 | static void *aio_proc(void *arg); |
429 | |
578 | |
430 | static void start_thread (void) |
579 | static void start_thread (void) |
431 | { |
580 | { |
432 | sigset_t fullsigset, oldsigset; |
581 | sigset_t fullsigset, oldsigset; |
433 | pthread_t tid; |
|
|
434 | pthread_attr_t attr; |
582 | pthread_attr_t attr; |
|
|
583 | |
|
|
584 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
585 | |
|
|
586 | if (!wrk) |
|
|
587 | croak ("unable to allocate worker thread data"); |
435 | |
588 | |
436 | pthread_attr_init (&attr); |
589 | pthread_attr_init (&attr); |
437 | pthread_attr_setstacksize (&attr, STACKSIZE); |
590 | pthread_attr_setstacksize (&attr, STACKSIZE); |
438 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
591 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
592 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
593 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
594 | #endif |
439 | |
595 | |
440 | sigfillset (&fullsigset); |
596 | sigfillset (&fullsigset); |
|
|
597 | |
|
|
598 | LOCK (wrklock); |
441 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
599 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
442 | |
600 | |
443 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
601 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
444 | started++; |
|
|
445 | |
|
|
446 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
447 | } |
|
|
448 | |
|
|
449 | static void req_send (aio_req req) |
|
|
450 | { |
|
|
451 | while (started < wanted && nreqs >= started) |
|
|
452 | start_thread (); |
|
|
453 | |
|
|
454 | ++nreqs; |
|
|
455 | |
|
|
456 | pthread_mutex_lock (&reqlock); |
|
|
457 | |
|
|
458 | req->next = 0; |
|
|
459 | |
|
|
460 | if (reqe) |
|
|
461 | { |
602 | { |
462 | reqe->next = req; |
603 | wrk->prev = &wrk_first; |
463 | reqe = req; |
604 | wrk->next = wrk_first.next; |
|
|
605 | wrk_first.next->prev = wrk; |
|
|
606 | wrk_first.next = wrk; |
|
|
607 | ++started; |
464 | } |
608 | } |
465 | else |
609 | else |
466 | reqe = reqs = req; |
610 | free (wrk); |
467 | |
611 | |
|
|
612 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
613 | UNLOCK (wrklock); |
|
|
614 | } |
|
|
615 | |
|
|
616 | static void maybe_start_thread () |
|
|
617 | { |
|
|
618 | if (get_nthreads () >= wanted) |
|
|
619 | return; |
|
|
620 | |
|
|
621 | /* todo: maybe use idle here, but might be less exact */ |
|
|
622 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
623 | return; |
|
|
624 | |
|
|
625 | start_thread (); |
|
|
626 | } |
|
|
627 | |
|
|
628 | static void req_send (aio_req req) |
|
|
629 | { |
|
|
630 | ++nreqs; |
|
|
631 | |
|
|
632 | LOCK (reqlock); |
|
|
633 | ++nready; |
|
|
634 | reqq_push (&req_queue, req); |
468 | pthread_cond_signal (&reqwait); |
635 | pthread_cond_signal (&reqwait); |
469 | pthread_mutex_unlock (&reqlock); |
636 | UNLOCK (reqlock); |
470 | |
637 | |
471 | if (nreqs > max_outstanding) |
638 | maybe_start_thread (); |
472 | for (;;) |
|
|
473 | { |
|
|
474 | poll_cb (); |
|
|
475 | |
|
|
476 | if (nreqs <= max_outstanding) |
|
|
477 | break; |
|
|
478 | |
|
|
479 | poll_wait (); |
|
|
480 | } |
|
|
481 | } |
639 | } |
482 | |
640 | |
483 | static void end_thread (void) |
641 | static void end_thread (void) |
484 | { |
642 | { |
485 | aio_req req; |
643 | aio_req req; |
|
|
644 | |
486 | Newz (0, req, 1, aio_cb); |
645 | Newz (0, req, 1, aio_cb); |
|
|
646 | |
487 | req->type = REQ_QUIT; |
647 | req->type = REQ_QUIT; |
|
|
648 | req->pri = PRI_MAX + PRI_BIAS; |
488 | |
649 | |
489 | req_send (req); |
650 | LOCK (reqlock); |
|
|
651 | reqq_push (&req_queue, req); |
|
|
652 | pthread_cond_signal (&reqwait); |
|
|
653 | UNLOCK (reqlock); |
|
|
654 | |
|
|
655 | LOCK (wrklock); |
|
|
656 | --started; |
|
|
657 | UNLOCK (wrklock); |
|
|
658 | } |
|
|
659 | |
|
|
660 | static void set_max_idle (int nthreads) |
|
|
661 | { |
|
|
662 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
663 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
664 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
490 | } |
665 | } |
491 | |
666 | |
492 | static void min_parallel (int nthreads) |
667 | static void min_parallel (int nthreads) |
493 | { |
668 | { |
494 | if (wanted < nthreads) |
669 | if (wanted < nthreads) |
495 | wanted = nthreads; |
670 | wanted = nthreads; |
496 | } |
671 | } |
497 | |
672 | |
498 | static void max_parallel (int nthreads) |
673 | static void max_parallel (int nthreads) |
499 | { |
674 | { |
500 | int cur = started; |
|
|
501 | |
|
|
502 | if (wanted > nthreads) |
675 | if (wanted > nthreads) |
503 | wanted = nthreads; |
676 | wanted = nthreads; |
504 | |
677 | |
505 | while (cur > wanted) |
678 | while (started > wanted) |
|
|
679 | end_thread (); |
|
|
680 | } |
|
|
681 | |
|
|
682 | static void poll_wait () |
|
|
683 | { |
|
|
684 | fd_set rfd; |
|
|
685 | |
|
|
686 | while (nreqs) |
506 | { |
687 | { |
|
|
688 | int size; |
|
|
689 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
690 | size = res_queue.size; |
|
|
691 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
692 | |
|
|
693 | if (size) |
|
|
694 | return; |
|
|
695 | |
507 | end_thread (); |
696 | maybe_start_thread (); |
508 | cur--; |
697 | |
|
|
698 | FD_ZERO(&rfd); |
|
|
699 | FD_SET(respipe [0], &rfd); |
|
|
700 | |
|
|
701 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
509 | } |
702 | } |
|
|
703 | } |
510 | |
704 | |
511 | while (started > wanted) |
705 | static int poll_cb () |
|
|
706 | { |
|
|
707 | dSP; |
|
|
708 | int count = 0; |
|
|
709 | int maxreqs = max_poll_reqs; |
|
|
710 | int do_croak = 0; |
|
|
711 | struct timeval tv_start, tv_now; |
|
|
712 | aio_req req; |
|
|
713 | |
|
|
714 | if (max_poll_time) |
|
|
715 | gettimeofday (&tv_start, 0); |
|
|
716 | |
|
|
717 | for (;;) |
512 | { |
718 | { |
|
|
719 | for (;;) |
|
|
720 | { |
|
|
721 | maybe_start_thread (); |
|
|
722 | |
|
|
723 | LOCK (reslock); |
|
|
724 | req = reqq_shift (&res_queue); |
|
|
725 | |
|
|
726 | if (req) |
|
|
727 | { |
|
|
728 | --npending; |
|
|
729 | |
|
|
730 | if (!res_queue.size) |
|
|
731 | { |
|
|
732 | /* read any signals sent by the worker threads */ |
|
|
733 | char buf [32]; |
|
|
734 | while (read (respipe [0], buf, 32) == 32) |
|
|
735 | ; |
|
|
736 | } |
|
|
737 | } |
|
|
738 | |
|
|
739 | UNLOCK (reslock); |
|
|
740 | |
|
|
741 | if (!req) |
|
|
742 | break; |
|
|
743 | |
|
|
744 | --nreqs; |
|
|
745 | |
|
|
746 | if (req->type == REQ_GROUP && req->size) |
|
|
747 | { |
|
|
748 | req->int1 = 1; /* mark request as delayed */ |
|
|
749 | continue; |
|
|
750 | } |
|
|
751 | else |
|
|
752 | { |
|
|
753 | req_invoke (req); |
|
|
754 | |
|
|
755 | count++; |
|
|
756 | } |
|
|
757 | |
|
|
758 | req_free (req); |
|
|
759 | |
|
|
760 | if (maxreqs && !--maxreqs) |
|
|
761 | break; |
|
|
762 | |
|
|
763 | if (max_poll_time) |
|
|
764 | { |
|
|
765 | gettimeofday (&tv_now, 0); |
|
|
766 | |
|
|
767 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
768 | break; |
|
|
769 | } |
|
|
770 | } |
|
|
771 | |
|
|
772 | if (nreqs <= max_outstanding) |
|
|
773 | break; |
|
|
774 | |
513 | poll_wait (); |
775 | poll_wait (); |
514 | poll_cb (); |
776 | |
|
|
777 | ++maxreqs; |
515 | } |
778 | } |
|
|
779 | |
|
|
780 | return count; |
516 | } |
781 | } |
517 | |
782 | |
518 | static void create_pipe () |
783 | static void create_pipe () |
519 | { |
784 | { |
520 | if (pipe (respipe)) |
785 | if (pipe (respipe)) |
… | |
… | |
544 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
809 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
545 | { |
810 | { |
546 | ssize_t res; |
811 | ssize_t res; |
547 | off_t ooffset; |
812 | off_t ooffset; |
548 | |
813 | |
549 | pthread_mutex_lock (&preadwritelock); |
814 | LOCK (preadwritelock); |
550 | ooffset = lseek (fd, 0, SEEK_CUR); |
815 | ooffset = lseek (fd, 0, SEEK_CUR); |
551 | lseek (fd, offset, SEEK_SET); |
816 | lseek (fd, offset, SEEK_SET); |
552 | res = read (fd, buf, count); |
817 | res = read (fd, buf, count); |
553 | lseek (fd, ooffset, SEEK_SET); |
818 | lseek (fd, ooffset, SEEK_SET); |
554 | pthread_mutex_unlock (&preadwritelock); |
819 | UNLOCK (preadwritelock); |
555 | |
820 | |
556 | return res; |
821 | return res; |
557 | } |
822 | } |
558 | |
823 | |
559 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
824 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
560 | { |
825 | { |
561 | ssize_t res; |
826 | ssize_t res; |
562 | off_t ooffset; |
827 | off_t ooffset; |
563 | |
828 | |
564 | pthread_mutex_lock (&preadwritelock); |
829 | LOCK (preadwritelock); |
565 | ooffset = lseek (fd, 0, SEEK_CUR); |
830 | ooffset = lseek (fd, 0, SEEK_CUR); |
566 | lseek (fd, offset, SEEK_SET); |
831 | lseek (fd, offset, SEEK_SET); |
567 | res = write (fd, buf, count); |
832 | res = write (fd, buf, count); |
568 | lseek (fd, offset, SEEK_SET); |
833 | lseek (fd, offset, SEEK_SET); |
569 | pthread_mutex_unlock (&preadwritelock); |
834 | UNLOCK (preadwritelock); |
570 | |
835 | |
571 | return res; |
836 | return res; |
572 | } |
837 | } |
573 | #endif |
838 | #endif |
574 | |
839 | |
575 | #if !HAVE_FDATASYNC |
840 | #if !HAVE_FDATASYNC |
576 | # define fdatasync fsync |
841 | # define fdatasync fsync |
577 | #endif |
842 | #endif |
578 | |
843 | |
579 | #if !HAVE_READAHEAD |
844 | #if !HAVE_READAHEAD |
580 | # define readahead aio_readahead |
845 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
581 | |
846 | |
582 | static ssize_t readahead (int fd, off_t offset, size_t count) |
847 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
583 | { |
848 | { |
584 | char readahead_buf[4096]; |
849 | dBUF; |
585 | |
850 | |
586 | while (count > 0) |
851 | while (count > 0) |
587 | { |
852 | { |
588 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
853 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
589 | |
854 | |
590 | pread (fd, readahead_buf, len, offset); |
855 | pread (fd, aio_buf, len, offset); |
591 | offset += len; |
856 | offset += len; |
592 | count -= len; |
857 | count -= len; |
593 | } |
858 | } |
594 | |
859 | |
595 | errno = 0; |
860 | errno = 0; |
596 | } |
861 | } |
|
|
862 | |
597 | #endif |
863 | #endif |
598 | |
864 | |
599 | #if !HAVE_READDIR_R |
865 | #if !HAVE_READDIR_R |
600 | # define readdir_r aio_readdir_r |
866 | # define readdir_r aio_readdir_r |
601 | |
867 | |
… | |
… | |
604 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
870 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
605 | { |
871 | { |
606 | struct dirent *e; |
872 | struct dirent *e; |
607 | int errorno; |
873 | int errorno; |
608 | |
874 | |
609 | pthread_mutex_lock (&readdirlock); |
875 | LOCK (readdirlock); |
610 | |
876 | |
611 | e = readdir (dirp); |
877 | e = readdir (dirp); |
612 | errorno = errno; |
878 | errorno = errno; |
613 | |
879 | |
614 | if (e) |
880 | if (e) |
… | |
… | |
617 | strcpy (ent->d_name, e->d_name); |
883 | strcpy (ent->d_name, e->d_name); |
618 | } |
884 | } |
619 | else |
885 | else |
620 | *res = 0; |
886 | *res = 0; |
621 | |
887 | |
622 | pthread_mutex_unlock (&readdirlock); |
888 | UNLOCK (readdirlock); |
623 | |
889 | |
624 | errno = errorno; |
890 | errno = errorno; |
625 | return e ? 0 : -1; |
891 | return e ? 0 : -1; |
626 | } |
892 | } |
627 | #endif |
893 | #endif |
628 | |
894 | |
629 | /* sendfile always needs emulation */ |
895 | /* sendfile always needs emulation */ |
630 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
896 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
631 | { |
897 | { |
632 | ssize_t res; |
898 | ssize_t res; |
633 | |
899 | |
634 | if (!count) |
900 | if (!count) |
635 | return 0; |
901 | return 0; |
… | |
… | |
646 | { |
912 | { |
647 | off_t sbytes; |
913 | off_t sbytes; |
648 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
914 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
649 | |
915 | |
650 | if (res < 0 && sbytes) |
916 | if (res < 0 && sbytes) |
651 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
917 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
652 | res = sbytes; |
918 | res = sbytes; |
653 | } |
919 | } |
654 | |
920 | |
655 | # elif __hpux |
921 | # elif __hpux |
656 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
922 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
684 | #endif |
950 | #endif |
685 | ) |
951 | ) |
686 | ) |
952 | ) |
687 | { |
953 | { |
688 | /* emulate sendfile. this is a major pain in the ass */ |
954 | /* emulate sendfile. this is a major pain in the ass */ |
689 | char buf[4096]; |
955 | dBUF; |
|
|
956 | |
690 | res = 0; |
957 | res = 0; |
691 | |
958 | |
692 | while (count) |
959 | while (count) |
693 | { |
960 | { |
694 | ssize_t cnt; |
961 | ssize_t cnt; |
695 | |
962 | |
696 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
963 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
697 | |
964 | |
698 | if (cnt <= 0) |
965 | if (cnt <= 0) |
699 | { |
966 | { |
700 | if (cnt && !res) res = -1; |
967 | if (cnt && !res) res = -1; |
701 | break; |
968 | break; |
702 | } |
969 | } |
703 | |
970 | |
704 | cnt = write (ofd, buf, cnt); |
971 | cnt = write (ofd, aio_buf, cnt); |
705 | |
972 | |
706 | if (cnt <= 0) |
973 | if (cnt <= 0) |
707 | { |
974 | { |
708 | if (cnt && !res) res = -1; |
975 | if (cnt && !res) res = -1; |
709 | break; |
976 | break; |
… | |
… | |
717 | |
984 | |
718 | return res; |
985 | return res; |
719 | } |
986 | } |
720 | |
987 | |
721 | /* read a full directory */ |
988 | /* read a full directory */ |
722 | static int scandir_ (const char *path, void **namesp) |
989 | static void scandir_ (aio_req req, worker *self) |
723 | { |
990 | { |
724 | DIR *dirp = opendir (path); |
991 | DIR *dirp; |
725 | union |
992 | union |
726 | { |
993 | { |
727 | struct dirent d; |
994 | struct dirent d; |
728 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
995 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
729 | } u; |
996 | } *u; |
730 | struct dirent *entp; |
997 | struct dirent *entp; |
731 | char *name, *names; |
998 | char *name, *names; |
732 | int memlen = 4096; |
999 | int memlen = 4096; |
733 | int memofs = 0; |
1000 | int memofs = 0; |
734 | int res = 0; |
1001 | int res = 0; |
735 | int errorno; |
1002 | int errorno; |
736 | |
1003 | |
737 | if (!dirp) |
1004 | LOCK (wrklock); |
738 | return -1; |
1005 | self->dirp = dirp = opendir (req->ptr1); |
739 | |
1006 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1007 | req->flags |= FLAG_PTR2_FREE; |
740 | names = malloc (memlen); |
1008 | req->ptr2 = names = malloc (memlen); |
|
|
1009 | UNLOCK (wrklock); |
|
|
1010 | |
|
|
1011 | if (dirp && u && names) |
|
|
1012 | for (;;) |
|
|
1013 | { |
|
|
1014 | errno = 0; |
|
|
1015 | readdir_r (dirp, &u->d, &entp); |
|
|
1016 | |
|
|
1017 | if (!entp) |
|
|
1018 | break; |
|
|
1019 | |
|
|
1020 | name = entp->d_name; |
|
|
1021 | |
|
|
1022 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1023 | { |
|
|
1024 | int len = strlen (name) + 1; |
|
|
1025 | |
|
|
1026 | res++; |
|
|
1027 | |
|
|
1028 | while (memofs + len > memlen) |
|
|
1029 | { |
|
|
1030 | memlen *= 2; |
|
|
1031 | LOCK (wrklock); |
|
|
1032 | req->ptr2 = names = realloc (names, memlen); |
|
|
1033 | UNLOCK (wrklock); |
|
|
1034 | |
|
|
1035 | if (!names) |
|
|
1036 | break; |
|
|
1037 | } |
|
|
1038 | |
|
|
1039 | memcpy (names + memofs, name, len); |
|
|
1040 | memofs += len; |
|
|
1041 | } |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | if (errno) |
|
|
1045 | res = -1; |
|
|
1046 | |
|
|
1047 | req->result = res; |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | /*****************************************************************************/ |
|
|
1051 | |
|
|
1052 | static void *aio_proc (void *thr_arg) |
|
|
1053 | { |
|
|
1054 | aio_req req; |
|
|
1055 | struct timespec ts; |
|
|
1056 | worker *self = (worker *)thr_arg; |
|
|
1057 | |
|
|
1058 | /* try to distribute timeouts somewhat evenly */ |
|
|
1059 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1060 | * (1000000000UL / 1024UL); |
741 | |
1061 | |
742 | for (;;) |
1062 | for (;;) |
743 | { |
1063 | { |
744 | errno = 0, readdir_r (dirp, &u.d, &entp); |
1064 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
745 | |
1065 | |
746 | if (!entp) |
1066 | LOCK (reqlock); |
747 | break; |
|
|
748 | |
|
|
749 | name = entp->d_name; |
|
|
750 | |
|
|
751 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
752 | { |
|
|
753 | int len = strlen (name) + 1; |
|
|
754 | |
|
|
755 | res++; |
|
|
756 | |
|
|
757 | while (memofs + len > memlen) |
|
|
758 | { |
|
|
759 | memlen *= 2; |
|
|
760 | names = realloc (names, memlen); |
|
|
761 | if (!names) |
|
|
762 | break; |
|
|
763 | } |
|
|
764 | |
|
|
765 | memcpy (names + memofs, name, len); |
|
|
766 | memofs += len; |
|
|
767 | } |
|
|
768 | } |
|
|
769 | |
|
|
770 | errorno = errno; |
|
|
771 | closedir (dirp); |
|
|
772 | |
|
|
773 | if (errorno) |
|
|
774 | { |
|
|
775 | free (names); |
|
|
776 | errno = errorno; |
|
|
777 | res = -1; |
|
|
778 | } |
|
|
779 | |
|
|
780 | *namesp = (void *)names; |
|
|
781 | return res; |
|
|
782 | } |
|
|
783 | |
|
|
784 | /*****************************************************************************/ |
|
|
785 | |
|
|
786 | static void *aio_proc (void *thr_arg) |
|
|
787 | { |
|
|
788 | aio_req req; |
|
|
789 | int type; |
|
|
790 | |
|
|
791 | do |
|
|
792 | { |
|
|
793 | pthread_mutex_lock (&reqlock); |
|
|
794 | |
1067 | |
795 | for (;;) |
1068 | for (;;) |
796 | { |
1069 | { |
797 | req = reqs; |
1070 | self->req = req = reqq_shift (&req_queue); |
798 | |
|
|
799 | if (reqs) |
|
|
800 | { |
|
|
801 | reqs = reqs->next; |
|
|
802 | if (!reqs) reqe = 0; |
|
|
803 | } |
|
|
804 | |
1071 | |
805 | if (req) |
1072 | if (req) |
806 | break; |
1073 | break; |
807 | |
1074 | |
|
|
1075 | ++idle; |
|
|
1076 | |
|
|
1077 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1078 | == ETIMEDOUT) |
|
|
1079 | { |
|
|
1080 | if (idle > max_idle) |
|
|
1081 | { |
|
|
1082 | --idle; |
|
|
1083 | UNLOCK (reqlock); |
|
|
1084 | LOCK (wrklock); |
|
|
1085 | --started; |
|
|
1086 | UNLOCK (wrklock); |
|
|
1087 | goto quit; |
|
|
1088 | } |
|
|
1089 | |
|
|
1090 | /* we are allowed to idle, so do so without any timeout */ |
808 | pthread_cond_wait (&reqwait, &reqlock); |
1091 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1092 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | --idle; |
809 | } |
1096 | } |
810 | |
1097 | |
811 | pthread_mutex_unlock (&reqlock); |
1098 | --nready; |
|
|
1099 | |
|
|
1100 | UNLOCK (reqlock); |
812 | |
1101 | |
813 | errno = 0; /* strictly unnecessary */ |
1102 | errno = 0; /* strictly unnecessary */ |
814 | type = req->type; /* remember type for QUIT check */ |
|
|
815 | |
1103 | |
816 | if (!(req->flags & FLAG_CANCELLED)) |
1104 | if (!(req->flags & FLAG_CANCELLED)) |
817 | switch (type) |
1105 | switch (req->type) |
818 | { |
1106 | { |
819 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1107 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
820 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1108 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
821 | |
1109 | |
822 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1110 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
823 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1111 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
824 | |
1112 | |
825 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1113 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
826 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1114 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
827 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1115 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
828 | |
1116 | |
829 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1117 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
830 | case REQ_CLOSE: req->result = close (req->fd); break; |
1118 | case REQ_CLOSE: req->result = close (req->int1); break; |
831 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1119 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
832 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1120 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
833 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1121 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
834 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1122 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
835 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1123 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1124 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1125 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
836 | |
1126 | |
837 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1127 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
838 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1128 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
839 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
1129 | case REQ_READDIR: scandir_ (req, self); break; |
840 | |
1130 | |
841 | case REQ_SLEEP: |
1131 | case REQ_BUSY: |
842 | { |
1132 | { |
843 | struct timeval tv; |
1133 | struct timeval tv; |
844 | |
1134 | |
845 | tv.tv_sec = req->fd; |
1135 | tv.tv_sec = req->int1; |
846 | tv.tv_usec = req->fd2; |
1136 | tv.tv_usec = req->int2; |
847 | |
1137 | |
848 | req->result = select (0, 0, 0, 0, &tv); |
1138 | req->result = select (0, 0, 0, 0, &tv); |
849 | } |
1139 | } |
850 | |
1140 | |
851 | case REQ_GROUP: |
1141 | case REQ_GROUP: |
852 | case REQ_NOP: |
1142 | case REQ_NOP: |
|
|
1143 | break; |
|
|
1144 | |
853 | case REQ_QUIT: |
1145 | case REQ_QUIT: |
854 | break; |
1146 | goto quit; |
855 | |
1147 | |
856 | default: |
1148 | default: |
857 | req->result = ENOSYS; |
1149 | req->result = ENOSYS; |
858 | break; |
1150 | break; |
859 | } |
1151 | } |
860 | |
1152 | |
861 | req->errorno = errno; |
1153 | req->errorno = errno; |
862 | |
1154 | |
863 | pthread_mutex_lock (&reslock); |
1155 | LOCK (reslock); |
864 | |
1156 | |
865 | req->next = 0; |
1157 | ++npending; |
866 | |
1158 | |
867 | if (rese) |
1159 | if (!reqq_push (&res_queue, req)) |
868 | { |
|
|
869 | rese->next = req; |
|
|
870 | rese = req; |
|
|
871 | } |
|
|
872 | else |
|
|
873 | { |
|
|
874 | rese = ress = req; |
|
|
875 | |
|
|
876 | /* write a dummy byte to the pipe so fh becomes ready */ |
1160 | /* write a dummy byte to the pipe so fh becomes ready */ |
877 | write (respipe [1], &respipe, 1); |
1161 | write (respipe [1], &respipe, 1); |
878 | } |
|
|
879 | |
1162 | |
880 | pthread_mutex_unlock (&reslock); |
1163 | self->req = 0; |
|
|
1164 | worker_clear (self); |
|
|
1165 | |
|
|
1166 | UNLOCK (reslock); |
881 | } |
1167 | } |
882 | while (type != REQ_QUIT); |
1168 | |
|
|
1169 | quit: |
|
|
1170 | LOCK (wrklock); |
|
|
1171 | worker_free (self); |
|
|
1172 | UNLOCK (wrklock); |
883 | |
1173 | |
884 | return 0; |
1174 | return 0; |
885 | } |
1175 | } |
886 | |
1176 | |
887 | /*****************************************************************************/ |
1177 | /*****************************************************************************/ |
888 | |
1178 | |
889 | static void atfork_prepare (void) |
1179 | static void atfork_prepare (void) |
890 | { |
1180 | { |
891 | pthread_mutex_lock (&reqlock); |
1181 | LOCK (wrklock); |
892 | pthread_mutex_lock (&reslock); |
1182 | LOCK (reqlock); |
|
|
1183 | LOCK (reslock); |
893 | #if !HAVE_PREADWRITE |
1184 | #if !HAVE_PREADWRITE |
894 | pthread_mutex_lock (&preadwritelock); |
1185 | LOCK (preadwritelock); |
895 | #endif |
1186 | #endif |
896 | #if !HAVE_READDIR_R |
1187 | #if !HAVE_READDIR_R |
897 | pthread_mutex_lock (&readdirlock); |
1188 | LOCK (readdirlock); |
898 | #endif |
1189 | #endif |
899 | } |
1190 | } |
900 | |
1191 | |
901 | static void atfork_parent (void) |
1192 | static void atfork_parent (void) |
902 | { |
1193 | { |
903 | #if !HAVE_READDIR_R |
1194 | #if !HAVE_READDIR_R |
904 | pthread_mutex_unlock (&readdirlock); |
1195 | UNLOCK (readdirlock); |
905 | #endif |
1196 | #endif |
906 | #if !HAVE_PREADWRITE |
1197 | #if !HAVE_PREADWRITE |
907 | pthread_mutex_unlock (&preadwritelock); |
1198 | UNLOCK (preadwritelock); |
908 | #endif |
1199 | #endif |
909 | pthread_mutex_unlock (&reslock); |
1200 | UNLOCK (reslock); |
910 | pthread_mutex_unlock (&reqlock); |
1201 | UNLOCK (reqlock); |
|
|
1202 | UNLOCK (wrklock); |
911 | } |
1203 | } |
912 | |
1204 | |
913 | static void atfork_child (void) |
1205 | static void atfork_child (void) |
914 | { |
1206 | { |
915 | aio_req prv; |
1207 | aio_req prv; |
916 | |
1208 | |
917 | started = 0; |
1209 | while (prv = reqq_shift (&req_queue)) |
|
|
1210 | req_free (prv); |
918 | |
1211 | |
919 | while (reqs) |
1212 | while (prv = reqq_shift (&res_queue)) |
|
|
1213 | req_free (prv); |
|
|
1214 | |
|
|
1215 | while (wrk_first.next != &wrk_first) |
920 | { |
1216 | { |
921 | prv = reqs; |
1217 | worker *wrk = wrk_first.next; |
922 | reqs = prv->next; |
1218 | |
|
|
1219 | if (wrk->req) |
|
|
1220 | req_free (wrk->req); |
|
|
1221 | |
|
|
1222 | worker_clear (wrk); |
923 | req_free (prv); |
1223 | worker_free (wrk); |
924 | } |
1224 | } |
925 | |
1225 | |
926 | reqs = reqe = 0; |
1226 | started = 0; |
927 | |
1227 | idle = 0; |
928 | while (ress) |
1228 | nreqs = 0; |
929 | { |
1229 | nready = 0; |
930 | prv = ress; |
1230 | npending = 0; |
931 | ress = prv->next; |
|
|
932 | req_free (prv); |
|
|
933 | } |
|
|
934 | |
|
|
935 | ress = rese = 0; |
|
|
936 | |
1231 | |
937 | close (respipe [0]); |
1232 | close (respipe [0]); |
938 | close (respipe [1]); |
1233 | close (respipe [1]); |
939 | create_pipe (); |
1234 | create_pipe (); |
940 | |
1235 | |
… | |
… | |
967 | PROTOTYPES: ENABLE |
1262 | PROTOTYPES: ENABLE |
968 | |
1263 | |
969 | BOOT: |
1264 | BOOT: |
970 | { |
1265 | { |
971 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1266 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1267 | |
972 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1268 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
973 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1269 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
974 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1270 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1271 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1272 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1273 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
975 | |
1274 | |
976 | create_pipe (); |
1275 | create_pipe (); |
977 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1276 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
978 | } |
1277 | } |
979 | |
1278 | |
980 | void |
1279 | void |
981 | min_parallel (nthreads) |
1280 | max_poll_reqs (int nreqs) |
982 | int nthreads |
|
|
983 | PROTOTYPE: $ |
1281 | PROTOTYPE: $ |
|
|
1282 | CODE: |
|
|
1283 | max_poll_reqs = nreqs; |
984 | |
1284 | |
985 | void |
1285 | void |
986 | max_parallel (nthreads) |
1286 | max_poll_time (double nseconds) |
987 | int nthreads |
|
|
988 | PROTOTYPE: $ |
1287 | PROTOTYPE: $ |
|
|
1288 | CODE: |
|
|
1289 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1290 | |
|
|
1291 | void |
|
|
1292 | min_parallel (int nthreads) |
|
|
1293 | PROTOTYPE: $ |
|
|
1294 | |
|
|
1295 | void |
|
|
1296 | max_parallel (int nthreads) |
|
|
1297 | PROTOTYPE: $ |
|
|
1298 | |
|
|
1299 | void |
|
|
1300 | max_idle (int nthreads) |
|
|
1301 | PROTOTYPE: $ |
|
|
1302 | CODE: |
|
|
1303 | set_max_idle (nthreads); |
989 | |
1304 | |
990 | int |
1305 | int |
991 | max_outstanding (nreqs) |
1306 | max_outstanding (int maxreqs) |
992 | int nreqs |
1307 | PROTOTYPE: $ |
993 | PROTOTYPE: $ |
|
|
994 | CODE: |
1308 | CODE: |
995 | RETVAL = max_outstanding; |
1309 | RETVAL = max_outstanding; |
996 | max_outstanding = nreqs; |
1310 | max_outstanding = maxreqs; |
|
|
1311 | OUTPUT: |
|
|
1312 | RETVAL |
997 | |
1313 | |
998 | void |
1314 | void |
999 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1315 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1000 | SV * pathname |
1316 | SV8 * pathname |
1001 | int flags |
1317 | int flags |
1002 | int mode |
1318 | int mode |
1003 | SV * callback |
1319 | SV * callback |
1004 | PROTOTYPE: $$$;$ |
1320 | PROTOTYPE: $$$;$ |
1005 | PPCODE: |
1321 | PPCODE: |
1006 | { |
1322 | { |
1007 | dREQ; |
1323 | dREQ; |
1008 | |
1324 | |
1009 | req->type = REQ_OPEN; |
1325 | req->type = REQ_OPEN; |
1010 | req->data = newSVsv (pathname); |
1326 | req->sv1 = newSVsv (pathname); |
1011 | req->dataptr = SvPVbyte_nolen (req->data); |
1327 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1012 | req->fd = flags; |
1328 | req->int1 = flags; |
1013 | req->mode = mode; |
1329 | req->mode = mode; |
1014 | |
1330 | |
1015 | REQ_SEND; |
1331 | REQ_SEND; |
1016 | } |
1332 | } |
1017 | |
1333 | |
… | |
… | |
1027 | PPCODE: |
1343 | PPCODE: |
1028 | { |
1344 | { |
1029 | dREQ; |
1345 | dREQ; |
1030 | |
1346 | |
1031 | req->type = ix; |
1347 | req->type = ix; |
1032 | req->fh = newSVsv (fh); |
1348 | req->fh = newSVsv (fh); |
1033 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1349 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1034 | |
1350 | |
1035 | REQ_SEND (req); |
1351 | REQ_SEND (req); |
1036 | } |
1352 | } |
1037 | |
1353 | |
1038 | void |
1354 | void |
1039 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1355 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1040 | SV * fh |
1356 | SV * fh |
1041 | UV offset |
1357 | UV offset |
1042 | UV length |
1358 | UV length |
1043 | SV * data |
1359 | SV8 * data |
1044 | UV dataoffset |
1360 | UV dataoffset |
1045 | SV * callback |
1361 | SV * callback |
1046 | ALIAS: |
1362 | ALIAS: |
1047 | aio_read = REQ_READ |
1363 | aio_read = REQ_READ |
1048 | aio_write = REQ_WRITE |
1364 | aio_write = REQ_WRITE |
1049 | PROTOTYPE: $$$$$;$ |
1365 | PROTOTYPE: $$$$$;$ |
1050 | PPCODE: |
1366 | PPCODE: |
1051 | { |
1367 | { |
1052 | aio_req req; |
|
|
1053 | STRLEN svlen; |
1368 | STRLEN svlen; |
1054 | char *svptr = SvPVbyte (data, svlen); |
1369 | char *svptr = SvPVbyte (data, svlen); |
1055 | |
1370 | |
1056 | SvUPGRADE (data, SVt_PV); |
1371 | SvUPGRADE (data, SVt_PV); |
1057 | SvPOK_on (data); |
1372 | SvPOK_on (data); |
… | |
… | |
1079 | |
1394 | |
1080 | { |
1395 | { |
1081 | dREQ; |
1396 | dREQ; |
1082 | |
1397 | |
1083 | req->type = ix; |
1398 | req->type = ix; |
1084 | req->fh = newSVsv (fh); |
1399 | req->fh = newSVsv (fh); |
1085 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1400 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1086 | : IoOFP (sv_2io (fh))); |
1401 | : IoOFP (sv_2io (fh))); |
1087 | req->offset = offset; |
1402 | req->offs = offset; |
1088 | req->length = length; |
1403 | req->size = length; |
1089 | req->data = SvREFCNT_inc (data); |
1404 | req->sv1 = SvREFCNT_inc (data); |
1090 | req->dataptr = (char *)svptr + dataoffset; |
1405 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1406 | req->stroffset = dataoffset; |
1091 | |
1407 | |
1092 | if (!SvREADONLY (data)) |
1408 | if (!SvREADONLY (data)) |
1093 | { |
1409 | { |
1094 | SvREADONLY_on (data); |
1410 | SvREADONLY_on (data); |
1095 | req->data2ptr = (void *)data; |
1411 | req->flags |= FLAG_SV1_RO_OFF; |
1096 | } |
1412 | } |
1097 | |
1413 | |
1098 | REQ_SEND; |
1414 | REQ_SEND; |
1099 | } |
1415 | } |
|
|
1416 | } |
|
|
1417 | |
|
|
1418 | void |
|
|
1419 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1420 | SV8 * path |
|
|
1421 | SV * callback |
|
|
1422 | PROTOTYPE: $$;$ |
|
|
1423 | PPCODE: |
|
|
1424 | { |
|
|
1425 | SV *data; |
|
|
1426 | dREQ; |
|
|
1427 | |
|
|
1428 | data = newSV (NAME_MAX); |
|
|
1429 | SvPOK_on (data); |
|
|
1430 | |
|
|
1431 | req->type = REQ_READLINK; |
|
|
1432 | req->fh = newSVsv (path); |
|
|
1433 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1434 | req->sv1 = data; |
|
|
1435 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1436 | |
|
|
1437 | REQ_SEND; |
1100 | } |
1438 | } |
1101 | |
1439 | |
1102 | void |
1440 | void |
1103 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1441 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1104 | SV * out_fh |
1442 | SV * out_fh |
… | |
… | |
1110 | PPCODE: |
1448 | PPCODE: |
1111 | { |
1449 | { |
1112 | dREQ; |
1450 | dREQ; |
1113 | |
1451 | |
1114 | req->type = REQ_SENDFILE; |
1452 | req->type = REQ_SENDFILE; |
1115 | req->fh = newSVsv (out_fh); |
1453 | req->fh = newSVsv (out_fh); |
1116 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1454 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1117 | req->fh2 = newSVsv (in_fh); |
1455 | req->sv2 = newSVsv (in_fh); |
1118 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1456 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1119 | req->offset = in_offset; |
1457 | req->offs = in_offset; |
1120 | req->length = length; |
1458 | req->size = length; |
1121 | |
1459 | |
1122 | REQ_SEND; |
1460 | REQ_SEND; |
1123 | } |
1461 | } |
1124 | |
1462 | |
1125 | void |
1463 | void |
… | |
… | |
1132 | PPCODE: |
1470 | PPCODE: |
1133 | { |
1471 | { |
1134 | dREQ; |
1472 | dREQ; |
1135 | |
1473 | |
1136 | req->type = REQ_READAHEAD; |
1474 | req->type = REQ_READAHEAD; |
1137 | req->fh = newSVsv (fh); |
1475 | req->fh = newSVsv (fh); |
1138 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1476 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1139 | req->offset = offset; |
1477 | req->offs = offset; |
1140 | req->length = length; |
1478 | req->size = length; |
1141 | |
1479 | |
1142 | REQ_SEND; |
1480 | REQ_SEND; |
1143 | } |
1481 | } |
1144 | |
1482 | |
1145 | void |
1483 | void |
1146 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1484 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1147 | SV * fh_or_path |
1485 | SV8 * fh_or_path |
1148 | SV * callback |
1486 | SV * callback |
1149 | ALIAS: |
1487 | ALIAS: |
1150 | aio_stat = REQ_STAT |
1488 | aio_stat = REQ_STAT |
1151 | aio_lstat = REQ_LSTAT |
1489 | aio_lstat = REQ_LSTAT |
1152 | PPCODE: |
1490 | PPCODE: |
1153 | { |
1491 | { |
1154 | dREQ; |
1492 | dREQ; |
1155 | |
1493 | |
1156 | New (0, req->statdata, 1, Stat_t); |
1494 | req->ptr2 = malloc (sizeof (Stat_t)); |
1157 | if (!req->statdata) |
1495 | if (!req->ptr2) |
1158 | { |
1496 | { |
1159 | req_free (req); |
1497 | req_free (req); |
1160 | croak ("out of memory during aio_req->statdata allocation"); |
1498 | croak ("out of memory during aio_stat statdata allocation"); |
1161 | } |
1499 | } |
|
|
1500 | |
|
|
1501 | req->flags |= FLAG_PTR2_FREE; |
1162 | |
1502 | |
1163 | if (SvPOK (fh_or_path)) |
1503 | if (SvPOK (fh_or_path)) |
1164 | { |
1504 | { |
1165 | req->type = ix; |
1505 | req->type = ix; |
1166 | req->data = newSVsv (fh_or_path); |
1506 | req->sv1 = newSVsv (fh_or_path); |
1167 | req->dataptr = SvPVbyte_nolen (req->data); |
1507 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1168 | } |
1508 | } |
1169 | else |
1509 | else |
1170 | { |
1510 | { |
1171 | req->type = REQ_FSTAT; |
1511 | req->type = REQ_FSTAT; |
1172 | req->fh = newSVsv (fh_or_path); |
1512 | req->fh = newSVsv (fh_or_path); |
1173 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1513 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1174 | } |
1514 | } |
1175 | |
1515 | |
1176 | REQ_SEND; |
1516 | REQ_SEND; |
1177 | } |
1517 | } |
1178 | |
1518 | |
1179 | void |
1519 | void |
1180 | aio_unlink (pathname,callback=&PL_sv_undef) |
1520 | aio_unlink (pathname,callback=&PL_sv_undef) |
1181 | SV * pathname |
1521 | SV8 * pathname |
1182 | SV * callback |
1522 | SV * callback |
1183 | ALIAS: |
1523 | ALIAS: |
1184 | aio_unlink = REQ_UNLINK |
1524 | aio_unlink = REQ_UNLINK |
1185 | aio_rmdir = REQ_RMDIR |
1525 | aio_rmdir = REQ_RMDIR |
1186 | aio_readdir = REQ_READDIR |
1526 | aio_readdir = REQ_READDIR |
1187 | PPCODE: |
1527 | PPCODE: |
1188 | { |
1528 | { |
1189 | dREQ; |
1529 | dREQ; |
1190 | |
1530 | |
1191 | req->type = ix; |
1531 | req->type = ix; |
1192 | req->data = newSVsv (pathname); |
1532 | req->sv1 = newSVsv (pathname); |
1193 | req->dataptr = SvPVbyte_nolen (req->data); |
1533 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1194 | |
1534 | |
1195 | REQ_SEND; |
1535 | REQ_SEND; |
1196 | } |
1536 | } |
1197 | |
1537 | |
1198 | void |
1538 | void |
1199 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1539 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1200 | SV * oldpath |
1540 | SV8 * oldpath |
1201 | SV * newpath |
1541 | SV8 * newpath |
1202 | SV * callback |
1542 | SV * callback |
1203 | ALIAS: |
1543 | ALIAS: |
1204 | aio_link = REQ_LINK |
1544 | aio_link = REQ_LINK |
1205 | aio_symlink = REQ_SYMLINK |
1545 | aio_symlink = REQ_SYMLINK |
1206 | aio_rename = REQ_RENAME |
1546 | aio_rename = REQ_RENAME |
1207 | PPCODE: |
1547 | PPCODE: |
1208 | { |
1548 | { |
1209 | dREQ; |
1549 | dREQ; |
1210 | |
1550 | |
1211 | req->type = ix; |
1551 | req->type = ix; |
1212 | req->fh = newSVsv (oldpath); |
1552 | req->fh = newSVsv (oldpath); |
1213 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1553 | req->ptr2 = SvPVbyte_nolen (req->fh); |
1214 | req->data = newSVsv (newpath); |
1554 | req->sv1 = newSVsv (newpath); |
1215 | req->dataptr = SvPVbyte_nolen (req->data); |
1555 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1216 | |
1556 | |
1217 | REQ_SEND; |
1557 | REQ_SEND; |
1218 | } |
1558 | } |
1219 | |
1559 | |
1220 | void |
1560 | void |
1221 | aio_sleep (delay,callback=&PL_sv_undef) |
1561 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
1222 | double delay |
1562 | SV8 * pathname |
1223 | SV * callback |
1563 | SV * callback |
|
|
1564 | UV mode |
|
|
1565 | UV dev |
1224 | PPCODE: |
1566 | PPCODE: |
1225 | { |
1567 | { |
1226 | dREQ; |
1568 | dREQ; |
|
|
1569 | |
|
|
1570 | req->type = REQ_MKNOD; |
|
|
1571 | req->sv1 = newSVsv (pathname); |
|
|
1572 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1573 | req->mode = (mode_t)mode; |
|
|
1574 | req->offs = dev; |
|
|
1575 | |
|
|
1576 | REQ_SEND; |
|
|
1577 | } |
1227 | |
1578 | |
|
|
1579 | void |
|
|
1580 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1581 | double delay |
|
|
1582 | SV * callback |
|
|
1583 | PPCODE: |
|
|
1584 | { |
|
|
1585 | dREQ; |
|
|
1586 | |
1228 | req->type = REQ_SLEEP; |
1587 | req->type = REQ_BUSY; |
1229 | req->fd = delay < 0. ? 0 : delay; |
1588 | req->int1 = delay < 0. ? 0 : delay; |
1230 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1589 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
1231 | |
1590 | |
1232 | REQ_SEND; |
1591 | REQ_SEND; |
1233 | } |
1592 | } |
1234 | |
1593 | |
1235 | void |
1594 | void |
… | |
… | |
1239 | PPCODE: |
1598 | PPCODE: |
1240 | { |
1599 | { |
1241 | dREQ; |
1600 | dREQ; |
1242 | |
1601 | |
1243 | req->type = REQ_GROUP; |
1602 | req->type = REQ_GROUP; |
|
|
1603 | |
1244 | req_send (req); |
1604 | req_send (req); |
1245 | |
|
|
1246 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1605 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1247 | } |
1606 | } |
1248 | |
1607 | |
1249 | void |
1608 | void |
1250 | aio_nop (callback=&PL_sv_undef) |
1609 | aio_nop (callback=&PL_sv_undef) |
1251 | SV * callback |
1610 | SV * callback |
1252 | PPCODE: |
1611 | PPCODE: |
1253 | { |
1612 | { |
1254 | dREQ; |
1613 | dREQ; |
1255 | |
1614 | |
1256 | req->type = REQ_NOP; |
1615 | req->type = REQ_NOP; |
1257 | |
1616 | |
1258 | REQ_SEND; |
1617 | REQ_SEND; |
1259 | } |
1618 | } |
1260 | |
1619 | |
1261 | #if 0 |
1620 | int |
1262 | |
1621 | aioreq_pri (int pri = 0) |
1263 | void |
1622 | PROTOTYPE: ;$ |
1264 | aio_pri (int pri = DEFAULT_PRI) |
|
|
1265 | CODE: |
1623 | CODE: |
|
|
1624 | RETVAL = next_pri - PRI_BIAS; |
|
|
1625 | if (items > 0) |
|
|
1626 | { |
1266 | if (pri < PRI_MIN) pri = PRI_MIN; |
1627 | if (pri < PRI_MIN) pri = PRI_MIN; |
1267 | if (pri > PRI_MAX) pri = PRI_MAX; |
1628 | if (pri > PRI_MAX) pri = PRI_MAX; |
1268 | next_pri = pri + PRI_BIAS; |
1629 | next_pri = pri + PRI_BIAS; |
|
|
1630 | } |
|
|
1631 | OUTPUT: |
|
|
1632 | RETVAL |
1269 | |
1633 | |
1270 | #endif |
1634 | void |
|
|
1635 | aioreq_nice (int nice = 0) |
|
|
1636 | CODE: |
|
|
1637 | nice = next_pri - nice; |
|
|
1638 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1639 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1640 | next_pri = nice + PRI_BIAS; |
1271 | |
1641 | |
1272 | void |
1642 | void |
1273 | flush () |
1643 | flush () |
1274 | PROTOTYPE: |
1644 | PROTOTYPE: |
1275 | CODE: |
1645 | CODE: |
1276 | while (nreqs) |
1646 | while (nreqs) |
1277 | { |
1647 | { |
1278 | poll_wait (); |
1648 | poll_wait (); |
1279 | poll_cb (); |
1649 | poll_cb (0); |
1280 | } |
1650 | } |
1281 | |
1651 | |
1282 | void |
1652 | void |
1283 | poll() |
1653 | poll() |
1284 | PROTOTYPE: |
1654 | PROTOTYPE: |
1285 | CODE: |
1655 | CODE: |
1286 | if (nreqs) |
1656 | if (nreqs) |
1287 | { |
1657 | { |
1288 | poll_wait (); |
1658 | poll_wait (); |
1289 | poll_cb (); |
1659 | poll_cb (0); |
1290 | } |
1660 | } |
1291 | |
1661 | |
1292 | int |
1662 | int |
1293 | poll_fileno() |
1663 | poll_fileno() |
1294 | PROTOTYPE: |
1664 | PROTOTYPE: |
… | |
… | |
1318 | CODE: |
1688 | CODE: |
1319 | RETVAL = nreqs; |
1689 | RETVAL = nreqs; |
1320 | OUTPUT: |
1690 | OUTPUT: |
1321 | RETVAL |
1691 | RETVAL |
1322 | |
1692 | |
|
|
1693 | int |
|
|
1694 | nready() |
|
|
1695 | PROTOTYPE: |
|
|
1696 | CODE: |
|
|
1697 | RETVAL = get_nready (); |
|
|
1698 | OUTPUT: |
|
|
1699 | RETVAL |
|
|
1700 | |
|
|
1701 | int |
|
|
1702 | npending() |
|
|
1703 | PROTOTYPE: |
|
|
1704 | CODE: |
|
|
1705 | RETVAL = get_npending (); |
|
|
1706 | OUTPUT: |
|
|
1707 | RETVAL |
|
|
1708 | |
|
|
1709 | int |
|
|
1710 | nthreads() |
|
|
1711 | PROTOTYPE: |
|
|
1712 | CODE: |
|
|
1713 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1714 | RETVAL = started; |
|
|
1715 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1716 | OUTPUT: |
|
|
1717 | RETVAL |
|
|
1718 | |
1323 | PROTOTYPES: DISABLE |
1719 | PROTOTYPES: DISABLE |
1324 | |
1720 | |
1325 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1721 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1326 | |
1722 | |
1327 | void |
1723 | void |
1328 | cancel (aio_req_ornot req) |
1724 | cancel (aio_req_ornot req) |
1329 | PROTOTYPE: |
|
|
1330 | CODE: |
1725 | CODE: |
1331 | req_cancel (req); |
1726 | req_cancel (req); |
1332 | |
1727 | |
1333 | void |
1728 | void |
1334 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1729 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
… | |
… | |
1343 | PPCODE: |
1738 | PPCODE: |
1344 | { |
1739 | { |
1345 | int i; |
1740 | int i; |
1346 | aio_req req; |
1741 | aio_req req; |
1347 | |
1742 | |
1348 | if (grp->fd == 2) |
1743 | if (grp->int1 == 2) |
1349 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1744 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1350 | |
1745 | |
1351 | for (i = 1; i < items; ++i ) |
1746 | for (i = 1; i < items; ++i ) |
1352 | { |
1747 | { |
1353 | if (GIMME_V != G_VOID) |
1748 | if (GIMME_V != G_VOID) |
… | |
… | |
1355 | |
1750 | |
1356 | req = SvAIO_REQ (ST (i)); |
1751 | req = SvAIO_REQ (ST (i)); |
1357 | |
1752 | |
1358 | if (req) |
1753 | if (req) |
1359 | { |
1754 | { |
1360 | ++grp->length; |
1755 | ++grp->size; |
1361 | req->grp = grp; |
1756 | req->grp = grp; |
1362 | |
1757 | |
1363 | req->grp_prev = 0; |
1758 | req->grp_prev = 0; |
1364 | req->grp_next = grp->grp_first; |
1759 | req->grp_next = grp->grp_first; |
1365 | |
1760 | |
… | |
… | |
1370 | } |
1765 | } |
1371 | } |
1766 | } |
1372 | } |
1767 | } |
1373 | |
1768 | |
1374 | void |
1769 | void |
|
|
1770 | cancel_subs (aio_req_ornot req) |
|
|
1771 | CODE: |
|
|
1772 | req_cancel_subs (req); |
|
|
1773 | |
|
|
1774 | void |
1375 | result (aio_req grp, ...) |
1775 | result (aio_req grp, ...) |
1376 | CODE: |
1776 | CODE: |
1377 | { |
1777 | { |
1378 | int i; |
1778 | int i; |
|
|
1779 | AV *av; |
|
|
1780 | |
|
|
1781 | grp->errorno = errno; |
|
|
1782 | |
1379 | AV *av = newAV (); |
1783 | av = newAV (); |
1380 | |
1784 | |
1381 | for (i = 1; i < items; ++i ) |
1785 | for (i = 1; i < items; ++i ) |
1382 | av_push (av, newSVsv (ST (i))); |
1786 | av_push (av, newSVsv (ST (i))); |
1383 | |
1787 | |
1384 | SvREFCNT_dec (grp->data); |
1788 | SvREFCNT_dec (grp->sv1); |
1385 | grp->data = (SV *)av; |
1789 | grp->sv1 = (SV *)av; |
1386 | } |
1790 | } |
1387 | |
1791 | |
1388 | void |
1792 | void |
|
|
1793 | errno (aio_req grp, int errorno = errno) |
|
|
1794 | CODE: |
|
|
1795 | grp->errorno = errorno; |
|
|
1796 | |
|
|
1797 | void |
1389 | feed_limit (aio_req grp, int limit) |
1798 | limit (aio_req grp, int limit) |
1390 | CODE: |
1799 | CODE: |
1391 | grp->fd2 = limit; |
1800 | grp->int2 = limit; |
1392 | aio_grp_feed (grp); |
1801 | aio_grp_feed (grp); |
1393 | |
1802 | |
1394 | void |
1803 | void |
1395 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1804 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1396 | CODE: |
1805 | CODE: |
1397 | { |
1806 | { |
1398 | SvREFCNT_dec (grp->fh2); |
1807 | SvREFCNT_dec (grp->sv2); |
1399 | grp->fh2 = newSVsv (callback); |
1808 | grp->sv2 = newSVsv (callback); |
1400 | |
1809 | |
1401 | if (grp->fd2 <= 0) |
1810 | if (grp->int2 <= 0) |
1402 | grp->fd2 = 2; |
1811 | grp->int2 = 2; |
1403 | |
1812 | |
1404 | aio_grp_feed (grp); |
1813 | aio_grp_feed (grp); |
1405 | } |
1814 | } |
1406 | |
1815 | |