1 | #if __linux |
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) |
2 | # define _GNU_SOURCE |
5 | # define _GNU_SOURCE |
3 | #endif |
6 | #endif |
4 | |
7 | |
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8 | /* just in case */ |
5 | #define _REENTRANT 1 |
9 | #define _REENTRANT 1 |
6 | |
10 | |
7 | #include <errno.h> |
11 | #include <errno.h> |
8 | |
12 | |
9 | #include "EXTERN.h" |
13 | #include "EXTERN.h" |
… | |
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39 | # else |
43 | # else |
40 | # error sendfile support requested but not available |
44 | # error sendfile support requested but not available |
41 | # endif |
45 | # endif |
42 | #endif |
46 | #endif |
43 | |
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 | |
44 | /* used for struct dirent, AIX doesn't provide it */ |
51 | /* used for struct dirent, AIX doesn't provide it */ |
45 | #ifndef NAME_MAX |
52 | #ifndef NAME_MAX |
46 | # define NAME_MAX 4096 |
53 | # define NAME_MAX 4096 |
47 | #endif |
54 | #endif |
48 | |
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 | |
49 | #if __ia64 |
61 | #if __ia64 |
50 | # 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 |
51 | #else |
65 | #else |
52 | # define STACKSIZE 8192 |
66 | # define STACKSIZE 16384 |
53 | #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 */ |
54 | |
93 | |
55 | enum { |
94 | enum { |
56 | REQ_QUIT, |
95 | REQ_QUIT, |
57 | REQ_OPEN, REQ_CLOSE, |
96 | REQ_OPEN, REQ_CLOSE, |
58 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
97 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
59 | REQ_SENDFILE, |
98 | REQ_SENDFILE, |
60 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
99 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
61 | REQ_FSYNC, REQ_FDATASYNC, |
100 | REQ_FSYNC, REQ_FDATASYNC, |
62 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
101 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
63 | REQ_READDIR, |
102 | REQ_MKNOD, REQ_READDIR, |
64 | REQ_LINK, REQ_SYMLINK, |
103 | REQ_LINK, REQ_SYMLINK, REQ_READLINK, |
65 | REQ_GROUP, REQ_NOP, |
104 | REQ_GROUP, REQ_NOP, |
66 | REQ_SLEEP, |
105 | REQ_BUSY, |
67 | }; |
106 | }; |
68 | |
107 | |
69 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
108 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
70 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
109 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
71 | |
110 | |
72 | typedef struct aio_cb |
111 | typedef struct aio_cb |
73 | { |
112 | { |
74 | struct aio_cb *volatile next; |
113 | struct aio_cb *volatile next; |
75 | |
114 | |
76 | SV *data, *callback; |
115 | SV *callback, *fh; |
77 | SV *fh, *fh2; |
116 | SV *sv1, *sv2; |
78 | void *dataptr, *data2ptr; |
117 | void *ptr1, *ptr2; |
79 | Stat_t *statdata; |
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80 | off_t offset; |
118 | off_t offs; |
81 | size_t length; |
119 | size_t size; |
82 | ssize_t result; |
120 | ssize_t result; |
83 | |
121 | |
84 | STRLEN dataoffset; |
122 | STRLEN stroffset; |
85 | int type; |
123 | int type; |
86 | int fd, fd2; |
124 | int int1, int2; |
87 | int errorno; |
125 | int errorno; |
88 | mode_t mode; /* open */ |
126 | mode_t mode; /* open */ |
89 | |
127 | |
90 | unsigned char flags; |
128 | unsigned char flags; |
91 | unsigned char pri; |
129 | unsigned char pri; |
… | |
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93 | SV *self; /* the perl counterpart of this request, if any */ |
131 | SV *self; /* the perl counterpart of this request, if any */ |
94 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
132 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
95 | } aio_cb; |
133 | } aio_cb; |
96 | |
134 | |
97 | enum { |
135 | enum { |
98 | 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) */ |
99 | }; |
139 | }; |
100 | |
140 | |
101 | typedef aio_cb *aio_req; |
141 | typedef aio_cb *aio_req; |
102 | typedef aio_cb *aio_req_ornot; |
142 | typedef aio_cb *aio_req_ornot; |
103 | |
143 | |
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105 | PRI_MIN = -4, |
145 | PRI_MIN = -4, |
106 | PRI_MAX = 4, |
146 | PRI_MAX = 4, |
107 | |
147 | |
108 | DEFAULT_PRI = 0, |
148 | DEFAULT_PRI = 0, |
109 | PRI_BIAS = -PRI_MIN, |
149 | PRI_BIAS = -PRI_MIN, |
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150 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
110 | }; |
151 | }; |
111 | |
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 | |
112 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
165 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
113 | |
166 | |
114 | static int started, wanted; |
167 | static unsigned int started, idle, wanted; |
115 | static volatile int nreqs; |
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116 | static int max_outstanding = 1<<30; |
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117 | static int respipe [2]; |
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118 | |
168 | |
119 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
169 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
120 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
170 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
121 | #else |
171 | #else |
122 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
172 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
123 | #endif |
173 | #endif |
124 | |
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; |
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221 | static int respipe [2]; |
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222 | |
125 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
223 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
126 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
224 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
127 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
225 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
128 | |
226 | |
129 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
227 | #if WORDACCESS_UNSAFE |
130 | static volatile aio_req ress, rese; /* queue start, queue end */ |
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131 | |
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 (); |
132 | static void req_invoke (aio_req req); |
325 | static void req_invoke (aio_req req); |
133 | 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); |
134 | |
328 | |
135 | /* must be called at most once */ |
329 | /* must be called at most once */ |
136 | static SV *req_sv (aio_req req, const char *klass) |
330 | static SV *req_sv (aio_req req, const char *klass) |
137 | { |
331 | { |
138 | if (!req->self) |
332 | if (!req->self) |
… | |
… | |
156 | return mg ? (aio_req)mg->mg_ptr : 0; |
350 | return mg ? (aio_req)mg->mg_ptr : 0; |
157 | } |
351 | } |
158 | |
352 | |
159 | static void aio_grp_feed (aio_req grp) |
353 | static void aio_grp_feed (aio_req grp) |
160 | { |
354 | { |
161 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
355 | while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) |
162 | { |
356 | { |
163 | int old_len = grp->length; |
357 | int old_len = grp->size; |
164 | |
358 | |
165 | if (grp->fh2 && SvOK (grp->fh2)) |
359 | if (grp->sv2 && SvOK (grp->sv2)) |
166 | { |
360 | { |
167 | dSP; |
361 | dSP; |
168 | |
362 | |
169 | ENTER; |
363 | ENTER; |
170 | SAVETMPS; |
364 | SAVETMPS; |
171 | PUSHMARK (SP); |
365 | PUSHMARK (SP); |
172 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
366 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
173 | PUTBACK; |
367 | PUTBACK; |
174 | call_sv (grp->fh2, G_VOID | G_EVAL); |
368 | call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
175 | SPAGAIN; |
369 | SPAGAIN; |
176 | FREETMPS; |
370 | FREETMPS; |
177 | LEAVE; |
371 | LEAVE; |
178 | } |
372 | } |
179 | |
373 | |
180 | /* stop if no progress has been made */ |
374 | /* stop if no progress has been made */ |
181 | if (old_len == grp->length) |
375 | if (old_len == grp->size) |
182 | { |
376 | { |
183 | SvREFCNT_dec (grp->fh2); |
377 | SvREFCNT_dec (grp->sv2); |
184 | grp->fh2 = 0; |
378 | grp->sv2 = 0; |
185 | break; |
379 | break; |
186 | } |
380 | } |
187 | } |
381 | } |
188 | } |
382 | } |
189 | |
383 | |
190 | static void aio_grp_dec (aio_req grp) |
384 | static void aio_grp_dec (aio_req grp) |
191 | { |
385 | { |
192 | --grp->length; |
386 | --grp->size; |
193 | |
387 | |
194 | /* call feeder, if applicable */ |
388 | /* call feeder, if applicable */ |
195 | aio_grp_feed (grp); |
389 | aio_grp_feed (grp); |
196 | |
390 | |
197 | /* finish, if done */ |
391 | /* finish, if done */ |
198 | if (!grp->length && grp->fd) |
392 | if (!grp->size && grp->int1) |
199 | { |
393 | { |
200 | req_invoke (grp); |
394 | req_invoke (grp); |
201 | req_free (grp); |
395 | req_free (grp); |
202 | } |
396 | } |
203 | } |
397 | } |
204 | |
398 | |
205 | static void poll_wait () |
399 | static void req_invoke (aio_req req) |
206 | { |
400 | { |
207 | fd_set rfd; |
401 | dSP; |
208 | |
402 | |
209 | 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)) |
210 | { |
407 | { |
211 | aio_req req; |
408 | ENTER; |
212 | pthread_mutex_lock (&reslock); |
409 | SAVETMPS; |
213 | req = ress; |
410 | PUSHMARK (SP); |
214 | pthread_mutex_unlock (&reslock); |
411 | EXTEND (SP, 1); |
215 | |
412 | |
216 | if (req) |
413 | switch (req->type) |
217 | 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; |
218 | |
418 | |
219 | FD_ZERO(&rfd); |
419 | if (req->result >= 0) |
220 | 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 (); |
221 | |
424 | |
222 | 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 = POPs; |
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453 | PUSHMARK (SP); |
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454 | XPUSHs (fh); |
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455 | } |
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456 | break; |
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457 | |
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458 | case REQ_GROUP: |
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459 | req->int1 = 2; /* mark group as finished */ |
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460 | |
|
|
461 | if (req->sv1) |
|
|
462 | { |
|
|
463 | int i; |
|
|
464 | AV *av = (AV *)req->sv1; |
|
|
465 | |
|
|
466 | EXTEND (SP, AvFILL (av) + 1); |
|
|
467 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
468 | PUSHs (*av_fetch (av, i, 0)); |
|
|
469 | } |
|
|
470 | break; |
|
|
471 | |
|
|
472 | case REQ_NOP: |
|
|
473 | case REQ_BUSY: |
|
|
474 | break; |
|
|
475 | |
|
|
476 | case REQ_READLINK: |
|
|
477 | if (req->result > 0) |
|
|
478 | { |
|
|
479 | SvCUR_set (req->sv1, req->result); |
|
|
480 | *SvEND (req->sv1) = 0; |
|
|
481 | PUSHs (req->sv1); |
|
|
482 | } |
|
|
483 | break; |
|
|
484 | |
|
|
485 | case REQ_STAT: |
|
|
486 | case REQ_LSTAT: |
|
|
487 | case REQ_FSTAT: |
|
|
488 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
489 | PL_laststatval = req->result; |
|
|
490 | PL_statcache = *(Stat_t *)(req->ptr2); |
|
|
491 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
492 | break; |
|
|
493 | |
|
|
494 | case REQ_READ: |
|
|
495 | SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); |
|
|
496 | *SvEND (req->sv1) = 0; |
|
|
497 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
498 | break; |
|
|
499 | |
|
|
500 | default: |
|
|
501 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
502 | break; |
|
|
503 | } |
|
|
504 | |
|
|
505 | errno = req->errorno; |
|
|
506 | |
|
|
507 | PUTBACK; |
|
|
508 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
509 | SPAGAIN; |
|
|
510 | |
|
|
511 | FREETMPS; |
|
|
512 | LEAVE; |
223 | } |
513 | } |
224 | } |
|
|
225 | |
514 | |
226 | static void req_invoke (aio_req req) |
515 | if (req->grp) |
227 | { |
|
|
228 | dSP; |
|
|
229 | int errorno = errno; |
|
|
230 | |
|
|
231 | if (req->flags & FLAG_CANCELLED || !SvOK (req->callback)) |
|
|
232 | return; |
|
|
233 | |
|
|
234 | errno = req->errorno; |
|
|
235 | |
|
|
236 | ENTER; |
|
|
237 | SAVETMPS; |
|
|
238 | PUSHMARK (SP); |
|
|
239 | EXTEND (SP, 1); |
|
|
240 | |
|
|
241 | switch (req->type) |
|
|
242 | { |
516 | { |
243 | case REQ_READDIR: |
517 | aio_req grp = req->grp; |
244 | { |
|
|
245 | SV *rv = &PL_sv_undef; |
|
|
246 | |
518 | |
247 | if (req->result >= 0) |
519 | /* unlink request */ |
248 | { |
520 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
249 | char *buf = req->data2ptr; |
521 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
250 | AV *av = newAV (); |
|
|
251 | |
522 | |
252 | while (req->result) |
523 | if (grp->grp_first == req) |
253 | { |
524 | grp->grp_first = req->grp_next; |
254 | SV *sv = newSVpv (buf, 0); |
|
|
255 | |
525 | |
256 | av_push (av, sv); |
526 | aio_grp_dec (grp); |
257 | buf += SvCUR (sv) + 1; |
|
|
258 | req->result--; |
|
|
259 | } |
|
|
260 | |
|
|
261 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
262 | } |
|
|
263 | |
|
|
264 | PUSHs (rv); |
|
|
265 | } |
|
|
266 | break; |
|
|
267 | |
|
|
268 | case REQ_OPEN: |
|
|
269 | { |
|
|
270 | /* convert fd to fh */ |
|
|
271 | SV *fh; |
|
|
272 | |
|
|
273 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
274 | PUTBACK; |
|
|
275 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
276 | SPAGAIN; |
|
|
277 | |
|
|
278 | fh = SvREFCNT_inc (POPs); |
|
|
279 | |
|
|
280 | PUSHMARK (SP); |
|
|
281 | XPUSHs (sv_2mortal (fh)); |
|
|
282 | } |
|
|
283 | break; |
|
|
284 | |
|
|
285 | case REQ_GROUP: |
|
|
286 | req->fd = 2; /* mark group as finished */ |
|
|
287 | |
|
|
288 | if (req->data) |
|
|
289 | { |
|
|
290 | int i; |
|
|
291 | AV *av = (AV *)req->data; |
|
|
292 | |
|
|
293 | EXTEND (SP, AvFILL (av) + 1); |
|
|
294 | for (i = 0; i <= AvFILL (av); ++i) |
|
|
295 | PUSHs (*av_fetch (av, i, 0)); |
|
|
296 | } |
|
|
297 | break; |
|
|
298 | |
|
|
299 | case REQ_NOP: |
|
|
300 | case REQ_SLEEP: |
|
|
301 | break; |
|
|
302 | |
|
|
303 | default: |
|
|
304 | PUSHs (sv_2mortal (newSViv (req->result))); |
|
|
305 | break; |
|
|
306 | } |
527 | } |
307 | |
|
|
308 | |
|
|
309 | PUTBACK; |
|
|
310 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
311 | SPAGAIN; |
|
|
312 | |
|
|
313 | FREETMPS; |
|
|
314 | LEAVE; |
|
|
315 | |
|
|
316 | errno = errorno; |
|
|
317 | |
528 | |
318 | if (SvTRUE (ERRSV)) |
529 | if (SvTRUE (ERRSV)) |
319 | { |
530 | { |
320 | req_free (req); |
531 | req_free (req); |
321 | croak (0); |
532 | croak (0); |
322 | } |
533 | } |
323 | } |
534 | } |
324 | |
535 | |
325 | static void req_free (aio_req req) |
536 | static void req_free (aio_req req) |
326 | { |
537 | { |
327 | if (req->grp) |
|
|
328 | { |
|
|
329 | aio_req grp = req->grp; |
|
|
330 | |
|
|
331 | /* unlink request */ |
|
|
332 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
333 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
334 | |
|
|
335 | if (grp->grp_first == req) |
|
|
336 | grp->grp_first = req->grp_next; |
|
|
337 | |
|
|
338 | aio_grp_dec (grp); |
|
|
339 | } |
|
|
340 | |
|
|
341 | if (req->self) |
538 | if (req->self) |
342 | { |
539 | { |
343 | sv_unmagic (req->self, PERL_MAGIC_ext); |
540 | sv_unmagic (req->self, PERL_MAGIC_ext); |
344 | SvREFCNT_dec (req->self); |
541 | SvREFCNT_dec (req->self); |
345 | } |
542 | } |
346 | |
543 | |
347 | SvREFCNT_dec (req->data); |
|
|
348 | SvREFCNT_dec (req->fh); |
544 | SvREFCNT_dec (req->fh); |
|
|
545 | SvREFCNT_dec (req->sv1); |
349 | SvREFCNT_dec (req->fh2); |
546 | SvREFCNT_dec (req->sv2); |
350 | SvREFCNT_dec (req->callback); |
547 | SvREFCNT_dec (req->callback); |
351 | Safefree (req->statdata); |
|
|
352 | |
548 | |
353 | if (req->type == REQ_READDIR && req->result >= 0) |
549 | if (req->flags & FLAG_PTR2_FREE) |
354 | free (req->data2ptr); |
550 | free (req->ptr2); |
355 | |
551 | |
356 | Safefree (req); |
552 | Safefree (req); |
357 | } |
553 | } |
358 | |
554 | |
|
|
555 | static void req_cancel_subs (aio_req grp) |
|
|
556 | { |
|
|
557 | aio_req sub; |
|
|
558 | |
|
|
559 | if (grp->type != REQ_GROUP) |
|
|
560 | return; |
|
|
561 | |
|
|
562 | SvREFCNT_dec (grp->sv2); |
|
|
563 | grp->sv2 = 0; |
|
|
564 | |
|
|
565 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
566 | req_cancel (sub); |
|
|
567 | } |
|
|
568 | |
359 | static void req_cancel (aio_req req) |
569 | static void req_cancel (aio_req req) |
360 | { |
570 | { |
361 | req->flags |= FLAG_CANCELLED; |
571 | req->flags |= FLAG_CANCELLED; |
362 | |
572 | |
363 | if (req->type == REQ_GROUP) |
573 | req_cancel_subs (req); |
364 | { |
|
|
365 | aio_req sub; |
|
|
366 | |
|
|
367 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
|
|
368 | req_cancel (sub); |
|
|
369 | } |
|
|
370 | } |
|
|
371 | |
|
|
372 | static int poll_cb () |
|
|
373 | { |
|
|
374 | dSP; |
|
|
375 | int count = 0; |
|
|
376 | int do_croak = 0; |
|
|
377 | aio_req req; |
|
|
378 | |
|
|
379 | for (;;) |
|
|
380 | { |
|
|
381 | pthread_mutex_lock (&reslock); |
|
|
382 | req = ress; |
|
|
383 | |
|
|
384 | if (req) |
|
|
385 | { |
|
|
386 | ress = req->next; |
|
|
387 | |
|
|
388 | if (!ress) |
|
|
389 | { |
|
|
390 | /* read any signals sent by the worker threads */ |
|
|
391 | char buf [32]; |
|
|
392 | while (read (respipe [0], buf, 32) == 32) |
|
|
393 | ; |
|
|
394 | |
|
|
395 | rese = 0; |
|
|
396 | } |
|
|
397 | } |
|
|
398 | |
|
|
399 | pthread_mutex_unlock (&reslock); |
|
|
400 | |
|
|
401 | if (!req) |
|
|
402 | break; |
|
|
403 | |
|
|
404 | --nreqs; |
|
|
405 | |
|
|
406 | if (req->type == REQ_QUIT) |
|
|
407 | started--; |
|
|
408 | else if (req->type == REQ_GROUP && req->length) |
|
|
409 | { |
|
|
410 | req->fd = 1; /* mark request as delayed */ |
|
|
411 | continue; |
|
|
412 | } |
|
|
413 | else |
|
|
414 | { |
|
|
415 | if (req->type == REQ_READ) |
|
|
416 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
|
|
417 | |
|
|
418 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
|
419 | SvREADONLY_off (req->data); |
|
|
420 | |
|
|
421 | if (req->statdata) |
|
|
422 | { |
|
|
423 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
|
|
424 | PL_laststatval = req->result; |
|
|
425 | PL_statcache = *(req->statdata); |
|
|
426 | } |
|
|
427 | |
|
|
428 | req_invoke (req); |
|
|
429 | |
|
|
430 | count++; |
|
|
431 | } |
|
|
432 | |
|
|
433 | req_free (req); |
|
|
434 | } |
|
|
435 | |
|
|
436 | return count; |
|
|
437 | } |
574 | } |
438 | |
575 | |
439 | static void *aio_proc(void *arg); |
576 | static void *aio_proc(void *arg); |
440 | |
577 | |
441 | static void start_thread (void) |
578 | static void start_thread (void) |
442 | { |
579 | { |
443 | sigset_t fullsigset, oldsigset; |
580 | sigset_t fullsigset, oldsigset; |
444 | pthread_t tid; |
|
|
445 | pthread_attr_t attr; |
581 | pthread_attr_t attr; |
|
|
582 | |
|
|
583 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
584 | |
|
|
585 | if (!wrk) |
|
|
586 | croak ("unable to allocate worker thread data"); |
446 | |
587 | |
447 | pthread_attr_init (&attr); |
588 | pthread_attr_init (&attr); |
448 | pthread_attr_setstacksize (&attr, STACKSIZE); |
589 | pthread_attr_setstacksize (&attr, STACKSIZE); |
449 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
590 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
|
|
591 | #ifdef PTHREAD_SCOPE_PROCESS |
|
|
592 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
|
|
593 | #endif |
450 | |
594 | |
451 | sigfillset (&fullsigset); |
595 | sigfillset (&fullsigset); |
|
|
596 | |
|
|
597 | LOCK (wrklock); |
452 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
598 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
453 | |
599 | |
454 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
600 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
455 | started++; |
|
|
456 | |
|
|
457 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
458 | } |
|
|
459 | |
|
|
460 | static void req_send (aio_req req) |
|
|
461 | { |
|
|
462 | while (started < wanted && nreqs >= started) |
|
|
463 | start_thread (); |
|
|
464 | |
|
|
465 | ++nreqs; |
|
|
466 | |
|
|
467 | pthread_mutex_lock (&reqlock); |
|
|
468 | |
|
|
469 | req->next = 0; |
|
|
470 | |
|
|
471 | if (reqe) |
|
|
472 | { |
601 | { |
473 | reqe->next = req; |
602 | wrk->prev = &wrk_first; |
474 | reqe = req; |
603 | wrk->next = wrk_first.next; |
|
|
604 | wrk_first.next->prev = wrk; |
|
|
605 | wrk_first.next = wrk; |
|
|
606 | ++started; |
475 | } |
607 | } |
476 | else |
608 | else |
477 | reqe = reqs = req; |
609 | free (wrk); |
478 | |
610 | |
|
|
611 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
612 | UNLOCK (wrklock); |
|
|
613 | } |
|
|
614 | |
|
|
615 | static void maybe_start_thread () |
|
|
616 | { |
|
|
617 | if (get_nthreads () >= wanted) |
|
|
618 | return; |
|
|
619 | |
|
|
620 | /* todo: maybe use idle here, but might be less exact */ |
|
|
621 | if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs) |
|
|
622 | return; |
|
|
623 | |
|
|
624 | start_thread (); |
|
|
625 | } |
|
|
626 | |
|
|
627 | static void req_send (aio_req req) |
|
|
628 | { |
|
|
629 | ++nreqs; |
|
|
630 | |
|
|
631 | LOCK (reqlock); |
|
|
632 | ++nready; |
|
|
633 | reqq_push (&req_queue, req); |
479 | pthread_cond_signal (&reqwait); |
634 | pthread_cond_signal (&reqwait); |
480 | pthread_mutex_unlock (&reqlock); |
635 | UNLOCK (reqlock); |
481 | |
636 | |
482 | if (nreqs > max_outstanding) |
637 | maybe_start_thread (); |
483 | for (;;) |
|
|
484 | { |
|
|
485 | poll_cb (); |
|
|
486 | |
|
|
487 | if (nreqs <= max_outstanding) |
|
|
488 | break; |
|
|
489 | |
|
|
490 | poll_wait (); |
|
|
491 | } |
|
|
492 | } |
638 | } |
493 | |
639 | |
494 | static void end_thread (void) |
640 | static void end_thread (void) |
495 | { |
641 | { |
496 | aio_req req; |
642 | aio_req req; |
|
|
643 | |
497 | Newz (0, req, 1, aio_cb); |
644 | Newz (0, req, 1, aio_cb); |
|
|
645 | |
498 | req->type = REQ_QUIT; |
646 | req->type = REQ_QUIT; |
|
|
647 | req->pri = PRI_MAX + PRI_BIAS; |
499 | |
648 | |
500 | req_send (req); |
649 | LOCK (reqlock); |
|
|
650 | reqq_push (&req_queue, req); |
|
|
651 | pthread_cond_signal (&reqwait); |
|
|
652 | UNLOCK (reqlock); |
|
|
653 | |
|
|
654 | LOCK (wrklock); |
|
|
655 | --started; |
|
|
656 | UNLOCK (wrklock); |
|
|
657 | } |
|
|
658 | |
|
|
659 | static void set_max_idle (int nthreads) |
|
|
660 | { |
|
|
661 | if (WORDACCESS_UNSAFE) LOCK (reqlock); |
|
|
662 | max_idle = nthreads <= 0 ? 1 : nthreads; |
|
|
663 | if (WORDACCESS_UNSAFE) UNLOCK (reqlock); |
501 | } |
664 | } |
502 | |
665 | |
503 | static void min_parallel (int nthreads) |
666 | static void min_parallel (int nthreads) |
504 | { |
667 | { |
505 | if (wanted < nthreads) |
668 | if (wanted < nthreads) |
506 | wanted = nthreads; |
669 | wanted = nthreads; |
507 | } |
670 | } |
508 | |
671 | |
509 | static void max_parallel (int nthreads) |
672 | static void max_parallel (int nthreads) |
510 | { |
673 | { |
511 | int cur = started; |
|
|
512 | |
|
|
513 | if (wanted > nthreads) |
674 | if (wanted > nthreads) |
514 | wanted = nthreads; |
675 | wanted = nthreads; |
515 | |
676 | |
516 | while (cur > wanted) |
677 | while (started > wanted) |
|
|
678 | end_thread (); |
|
|
679 | } |
|
|
680 | |
|
|
681 | static void poll_wait () |
|
|
682 | { |
|
|
683 | fd_set rfd; |
|
|
684 | |
|
|
685 | while (nreqs) |
517 | { |
686 | { |
|
|
687 | int size; |
|
|
688 | if (WORDACCESS_UNSAFE) LOCK (reslock); |
|
|
689 | size = res_queue.size; |
|
|
690 | if (WORDACCESS_UNSAFE) UNLOCK (reslock); |
|
|
691 | |
|
|
692 | if (size) |
|
|
693 | return; |
|
|
694 | |
518 | end_thread (); |
695 | maybe_start_thread (); |
519 | cur--; |
696 | |
|
|
697 | FD_ZERO(&rfd); |
|
|
698 | FD_SET(respipe [0], &rfd); |
|
|
699 | |
|
|
700 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
520 | } |
701 | } |
|
|
702 | } |
521 | |
703 | |
522 | while (started > wanted) |
704 | static int poll_cb () |
|
|
705 | { |
|
|
706 | dSP; |
|
|
707 | int count = 0; |
|
|
708 | int maxreqs = max_poll_reqs; |
|
|
709 | int do_croak = 0; |
|
|
710 | struct timeval tv_start, tv_now; |
|
|
711 | aio_req req; |
|
|
712 | |
|
|
713 | if (max_poll_time) |
|
|
714 | gettimeofday (&tv_start, 0); |
|
|
715 | |
|
|
716 | for (;;) |
523 | { |
717 | { |
|
|
718 | for (;;) |
|
|
719 | { |
|
|
720 | maybe_start_thread (); |
|
|
721 | |
|
|
722 | LOCK (reslock); |
|
|
723 | req = reqq_shift (&res_queue); |
|
|
724 | |
|
|
725 | if (req) |
|
|
726 | { |
|
|
727 | --npending; |
|
|
728 | |
|
|
729 | if (!res_queue.size) |
|
|
730 | { |
|
|
731 | /* read any signals sent by the worker threads */ |
|
|
732 | char buf [32]; |
|
|
733 | while (read (respipe [0], buf, 32) == 32) |
|
|
734 | ; |
|
|
735 | } |
|
|
736 | } |
|
|
737 | |
|
|
738 | UNLOCK (reslock); |
|
|
739 | |
|
|
740 | if (!req) |
|
|
741 | break; |
|
|
742 | |
|
|
743 | --nreqs; |
|
|
744 | |
|
|
745 | if (req->type == REQ_GROUP && req->size) |
|
|
746 | { |
|
|
747 | req->int1 = 1; /* mark request as delayed */ |
|
|
748 | continue; |
|
|
749 | } |
|
|
750 | else |
|
|
751 | { |
|
|
752 | req_invoke (req); |
|
|
753 | |
|
|
754 | count++; |
|
|
755 | } |
|
|
756 | |
|
|
757 | req_free (req); |
|
|
758 | |
|
|
759 | if (maxreqs && !--maxreqs) |
|
|
760 | break; |
|
|
761 | |
|
|
762 | if (max_poll_time) |
|
|
763 | { |
|
|
764 | gettimeofday (&tv_now, 0); |
|
|
765 | |
|
|
766 | if (tvdiff (&tv_start, &tv_now) >= max_poll_time) |
|
|
767 | break; |
|
|
768 | } |
|
|
769 | } |
|
|
770 | |
|
|
771 | if (nreqs <= max_outstanding) |
|
|
772 | break; |
|
|
773 | |
524 | poll_wait (); |
774 | poll_wait (); |
525 | poll_cb (); |
775 | |
|
|
776 | ++maxreqs; |
526 | } |
777 | } |
|
|
778 | |
|
|
779 | return count; |
527 | } |
780 | } |
528 | |
781 | |
529 | static void create_pipe () |
782 | static void create_pipe () |
530 | { |
783 | { |
531 | if (pipe (respipe)) |
784 | if (pipe (respipe)) |
… | |
… | |
555 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
808 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
556 | { |
809 | { |
557 | ssize_t res; |
810 | ssize_t res; |
558 | off_t ooffset; |
811 | off_t ooffset; |
559 | |
812 | |
560 | pthread_mutex_lock (&preadwritelock); |
813 | LOCK (preadwritelock); |
561 | ooffset = lseek (fd, 0, SEEK_CUR); |
814 | ooffset = lseek (fd, 0, SEEK_CUR); |
562 | lseek (fd, offset, SEEK_SET); |
815 | lseek (fd, offset, SEEK_SET); |
563 | res = read (fd, buf, count); |
816 | res = read (fd, buf, count); |
564 | lseek (fd, ooffset, SEEK_SET); |
817 | lseek (fd, ooffset, SEEK_SET); |
565 | pthread_mutex_unlock (&preadwritelock); |
818 | UNLOCK (preadwritelock); |
566 | |
819 | |
567 | return res; |
820 | return res; |
568 | } |
821 | } |
569 | |
822 | |
570 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
823 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
571 | { |
824 | { |
572 | ssize_t res; |
825 | ssize_t res; |
573 | off_t ooffset; |
826 | off_t ooffset; |
574 | |
827 | |
575 | pthread_mutex_lock (&preadwritelock); |
828 | LOCK (preadwritelock); |
576 | ooffset = lseek (fd, 0, SEEK_CUR); |
829 | ooffset = lseek (fd, 0, SEEK_CUR); |
577 | lseek (fd, offset, SEEK_SET); |
830 | lseek (fd, offset, SEEK_SET); |
578 | res = write (fd, buf, count); |
831 | res = write (fd, buf, count); |
579 | lseek (fd, offset, SEEK_SET); |
832 | lseek (fd, offset, SEEK_SET); |
580 | pthread_mutex_unlock (&preadwritelock); |
833 | UNLOCK (preadwritelock); |
581 | |
834 | |
582 | return res; |
835 | return res; |
583 | } |
836 | } |
584 | #endif |
837 | #endif |
585 | |
838 | |
586 | #if !HAVE_FDATASYNC |
839 | #if !HAVE_FDATASYNC |
587 | # define fdatasync fsync |
840 | # define fdatasync fsync |
588 | #endif |
841 | #endif |
589 | |
842 | |
590 | #if !HAVE_READAHEAD |
843 | #if !HAVE_READAHEAD |
591 | # define readahead aio_readahead |
844 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
592 | |
845 | |
593 | static ssize_t readahead (int fd, off_t offset, size_t count) |
846 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
594 | { |
847 | { |
595 | char readahead_buf[4096]; |
848 | dBUF; |
596 | |
849 | |
597 | while (count > 0) |
850 | while (count > 0) |
598 | { |
851 | { |
599 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
852 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
600 | |
853 | |
601 | pread (fd, readahead_buf, len, offset); |
854 | pread (fd, aio_buf, len, offset); |
602 | offset += len; |
855 | offset += len; |
603 | count -= len; |
856 | count -= len; |
604 | } |
857 | } |
605 | |
858 | |
606 | errno = 0; |
859 | errno = 0; |
607 | } |
860 | } |
|
|
861 | |
608 | #endif |
862 | #endif |
609 | |
863 | |
610 | #if !HAVE_READDIR_R |
864 | #if !HAVE_READDIR_R |
611 | # define readdir_r aio_readdir_r |
865 | # define readdir_r aio_readdir_r |
612 | |
866 | |
… | |
… | |
615 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
869 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
616 | { |
870 | { |
617 | struct dirent *e; |
871 | struct dirent *e; |
618 | int errorno; |
872 | int errorno; |
619 | |
873 | |
620 | pthread_mutex_lock (&readdirlock); |
874 | LOCK (readdirlock); |
621 | |
875 | |
622 | e = readdir (dirp); |
876 | e = readdir (dirp); |
623 | errorno = errno; |
877 | errorno = errno; |
624 | |
878 | |
625 | if (e) |
879 | if (e) |
… | |
… | |
628 | strcpy (ent->d_name, e->d_name); |
882 | strcpy (ent->d_name, e->d_name); |
629 | } |
883 | } |
630 | else |
884 | else |
631 | *res = 0; |
885 | *res = 0; |
632 | |
886 | |
633 | pthread_mutex_unlock (&readdirlock); |
887 | UNLOCK (readdirlock); |
634 | |
888 | |
635 | errno = errorno; |
889 | errno = errorno; |
636 | return e ? 0 : -1; |
890 | return e ? 0 : -1; |
637 | } |
891 | } |
638 | #endif |
892 | #endif |
639 | |
893 | |
640 | /* sendfile always needs emulation */ |
894 | /* sendfile always needs emulation */ |
641 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
895 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
642 | { |
896 | { |
643 | ssize_t res; |
897 | ssize_t res; |
644 | |
898 | |
645 | if (!count) |
899 | if (!count) |
646 | return 0; |
900 | return 0; |
… | |
… | |
657 | { |
911 | { |
658 | off_t sbytes; |
912 | off_t sbytes; |
659 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
913 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
660 | |
914 | |
661 | if (res < 0 && sbytes) |
915 | if (res < 0 && sbytes) |
662 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
916 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
663 | res = sbytes; |
917 | res = sbytes; |
664 | } |
918 | } |
665 | |
919 | |
666 | # elif __hpux |
920 | # elif __hpux |
667 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
921 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
695 | #endif |
949 | #endif |
696 | ) |
950 | ) |
697 | ) |
951 | ) |
698 | { |
952 | { |
699 | /* emulate sendfile. this is a major pain in the ass */ |
953 | /* emulate sendfile. this is a major pain in the ass */ |
700 | char buf[4096]; |
954 | dBUF; |
|
|
955 | |
701 | res = 0; |
956 | res = 0; |
702 | |
957 | |
703 | while (count) |
958 | while (count) |
704 | { |
959 | { |
705 | ssize_t cnt; |
960 | ssize_t cnt; |
706 | |
961 | |
707 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
962 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
708 | |
963 | |
709 | if (cnt <= 0) |
964 | if (cnt <= 0) |
710 | { |
965 | { |
711 | if (cnt && !res) res = -1; |
966 | if (cnt && !res) res = -1; |
712 | break; |
967 | break; |
713 | } |
968 | } |
714 | |
969 | |
715 | cnt = write (ofd, buf, cnt); |
970 | cnt = write (ofd, aio_buf, cnt); |
716 | |
971 | |
717 | if (cnt <= 0) |
972 | if (cnt <= 0) |
718 | { |
973 | { |
719 | if (cnt && !res) res = -1; |
974 | if (cnt && !res) res = -1; |
720 | break; |
975 | break; |
… | |
… | |
728 | |
983 | |
729 | return res; |
984 | return res; |
730 | } |
985 | } |
731 | |
986 | |
732 | /* read a full directory */ |
987 | /* read a full directory */ |
733 | static int scandir_ (const char *path, void **namesp) |
988 | static void scandir_ (aio_req req, worker *self) |
734 | { |
989 | { |
735 | DIR *dirp = opendir (path); |
990 | DIR *dirp; |
736 | union |
991 | union |
737 | { |
992 | { |
738 | struct dirent d; |
993 | struct dirent d; |
739 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
994 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
740 | } u; |
995 | } *u; |
741 | struct dirent *entp; |
996 | struct dirent *entp; |
742 | char *name, *names; |
997 | char *name, *names; |
743 | int memlen = 4096; |
998 | int memlen = 4096; |
744 | int memofs = 0; |
999 | int memofs = 0; |
745 | int res = 0; |
1000 | int res = 0; |
746 | int errorno; |
1001 | int errorno; |
747 | |
1002 | |
748 | if (!dirp) |
1003 | LOCK (wrklock); |
749 | return -1; |
1004 | self->dirp = dirp = opendir (req->ptr1); |
750 | |
1005 | self->dbuf = u = malloc (sizeof (*u)); |
|
|
1006 | req->flags |= FLAG_PTR2_FREE; |
751 | names = malloc (memlen); |
1007 | req->ptr2 = names = malloc (memlen); |
|
|
1008 | UNLOCK (wrklock); |
|
|
1009 | |
|
|
1010 | if (dirp && u && names) |
|
|
1011 | for (;;) |
|
|
1012 | { |
|
|
1013 | errno = 0; |
|
|
1014 | readdir_r (dirp, &u->d, &entp); |
|
|
1015 | |
|
|
1016 | if (!entp) |
|
|
1017 | break; |
|
|
1018 | |
|
|
1019 | name = entp->d_name; |
|
|
1020 | |
|
|
1021 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
1022 | { |
|
|
1023 | int len = strlen (name) + 1; |
|
|
1024 | |
|
|
1025 | res++; |
|
|
1026 | |
|
|
1027 | while (memofs + len > memlen) |
|
|
1028 | { |
|
|
1029 | memlen *= 2; |
|
|
1030 | LOCK (wrklock); |
|
|
1031 | req->ptr2 = names = realloc (names, memlen); |
|
|
1032 | UNLOCK (wrklock); |
|
|
1033 | |
|
|
1034 | if (!names) |
|
|
1035 | break; |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | memcpy (names + memofs, name, len); |
|
|
1039 | memofs += len; |
|
|
1040 | } |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | if (errno) |
|
|
1044 | res = -1; |
|
|
1045 | |
|
|
1046 | req->result = res; |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | /*****************************************************************************/ |
|
|
1050 | |
|
|
1051 | static void *aio_proc (void *thr_arg) |
|
|
1052 | { |
|
|
1053 | aio_req req; |
|
|
1054 | struct timespec ts; |
|
|
1055 | worker *self = (worker *)thr_arg; |
|
|
1056 | |
|
|
1057 | /* try to distribute timeouts somewhat evenly */ |
|
|
1058 | ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL) |
|
|
1059 | * (1000000000UL / 1024UL); |
752 | |
1060 | |
753 | for (;;) |
1061 | for (;;) |
754 | { |
1062 | { |
755 | errno = 0, readdir_r (dirp, &u.d, &entp); |
1063 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
756 | |
1064 | |
757 | if (!entp) |
1065 | LOCK (reqlock); |
758 | break; |
|
|
759 | |
|
|
760 | name = entp->d_name; |
|
|
761 | |
|
|
762 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
|
|
763 | { |
|
|
764 | int len = strlen (name) + 1; |
|
|
765 | |
|
|
766 | res++; |
|
|
767 | |
|
|
768 | while (memofs + len > memlen) |
|
|
769 | { |
|
|
770 | memlen *= 2; |
|
|
771 | names = realloc (names, memlen); |
|
|
772 | if (!names) |
|
|
773 | break; |
|
|
774 | } |
|
|
775 | |
|
|
776 | memcpy (names + memofs, name, len); |
|
|
777 | memofs += len; |
|
|
778 | } |
|
|
779 | } |
|
|
780 | |
|
|
781 | errorno = errno; |
|
|
782 | closedir (dirp); |
|
|
783 | |
|
|
784 | if (errorno) |
|
|
785 | { |
|
|
786 | free (names); |
|
|
787 | errno = errorno; |
|
|
788 | res = -1; |
|
|
789 | } |
|
|
790 | |
|
|
791 | *namesp = (void *)names; |
|
|
792 | return res; |
|
|
793 | } |
|
|
794 | |
|
|
795 | /*****************************************************************************/ |
|
|
796 | |
|
|
797 | static void *aio_proc (void *thr_arg) |
|
|
798 | { |
|
|
799 | aio_req req; |
|
|
800 | int type; |
|
|
801 | |
|
|
802 | do |
|
|
803 | { |
|
|
804 | pthread_mutex_lock (&reqlock); |
|
|
805 | |
1066 | |
806 | for (;;) |
1067 | for (;;) |
807 | { |
1068 | { |
808 | req = reqs; |
1069 | self->req = req = reqq_shift (&req_queue); |
809 | |
|
|
810 | if (reqs) |
|
|
811 | { |
|
|
812 | reqs = reqs->next; |
|
|
813 | if (!reqs) reqe = 0; |
|
|
814 | } |
|
|
815 | |
1070 | |
816 | if (req) |
1071 | if (req) |
817 | break; |
1072 | break; |
818 | |
1073 | |
|
|
1074 | ++idle; |
|
|
1075 | |
|
|
1076 | if (pthread_cond_timedwait (&reqwait, &reqlock, &ts) |
|
|
1077 | == ETIMEDOUT) |
|
|
1078 | { |
|
|
1079 | if (idle > max_idle) |
|
|
1080 | { |
|
|
1081 | --idle; |
|
|
1082 | UNLOCK (reqlock); |
|
|
1083 | LOCK (wrklock); |
|
|
1084 | --started; |
|
|
1085 | UNLOCK (wrklock); |
|
|
1086 | goto quit; |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | /* we are allowed to idle, so do so without any timeout */ |
819 | pthread_cond_wait (&reqwait, &reqlock); |
1090 | pthread_cond_wait (&reqwait, &reqlock); |
|
|
1091 | ts.tv_sec = time (0) + IDLE_TIMEOUT; |
|
|
1092 | } |
|
|
1093 | |
|
|
1094 | --idle; |
820 | } |
1095 | } |
821 | |
1096 | |
822 | pthread_mutex_unlock (&reqlock); |
1097 | --nready; |
|
|
1098 | |
|
|
1099 | UNLOCK (reqlock); |
823 | |
1100 | |
824 | errno = 0; /* strictly unnecessary */ |
1101 | errno = 0; /* strictly unnecessary */ |
825 | type = req->type; /* remember type for QUIT check */ |
|
|
826 | |
1102 | |
827 | if (!(req->flags & FLAG_CANCELLED)) |
1103 | if (!(req->flags & FLAG_CANCELLED)) |
828 | switch (type) |
1104 | switch (req->type) |
829 | { |
1105 | { |
830 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
1106 | case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break; |
831 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
1107 | case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break; |
832 | |
1108 | |
833 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
1109 | case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; |
834 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
1110 | case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; |
835 | |
1111 | |
836 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
1112 | case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break; |
837 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
1113 | case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break; |
838 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
1114 | case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break; |
839 | |
1115 | |
840 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
1116 | case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break; |
841 | case REQ_CLOSE: req->result = close (req->fd); break; |
1117 | case REQ_CLOSE: req->result = close (req->int1); break; |
842 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
1118 | case REQ_UNLINK: req->result = unlink (req->ptr1); break; |
843 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
1119 | case REQ_RMDIR: req->result = rmdir (req->ptr1); break; |
844 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
1120 | case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break; |
845 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
1121 | case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break; |
846 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
1122 | case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break; |
|
|
1123 | case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break; |
|
|
1124 | case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break; |
847 | |
1125 | |
848 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
1126 | case REQ_FDATASYNC: req->result = fdatasync (req->int1); break; |
849 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
1127 | case REQ_FSYNC: req->result = fsync (req->int1); break; |
850 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
1128 | case REQ_READDIR: scandir_ (req, self); break; |
851 | |
1129 | |
852 | case REQ_SLEEP: |
1130 | case REQ_BUSY: |
853 | { |
1131 | { |
854 | struct timeval tv; |
1132 | struct timeval tv; |
855 | |
1133 | |
856 | tv.tv_sec = req->fd; |
1134 | tv.tv_sec = req->int1; |
857 | tv.tv_usec = req->fd2; |
1135 | tv.tv_usec = req->int2; |
858 | |
1136 | |
859 | req->result = select (0, 0, 0, 0, &tv); |
1137 | req->result = select (0, 0, 0, 0, &tv); |
860 | } |
1138 | } |
861 | |
1139 | |
862 | case REQ_GROUP: |
1140 | case REQ_GROUP: |
863 | case REQ_NOP: |
1141 | case REQ_NOP: |
|
|
1142 | break; |
|
|
1143 | |
864 | case REQ_QUIT: |
1144 | case REQ_QUIT: |
865 | break; |
1145 | goto quit; |
866 | |
1146 | |
867 | default: |
1147 | default: |
868 | req->result = ENOSYS; |
1148 | req->result = ENOSYS; |
869 | break; |
1149 | break; |
870 | } |
1150 | } |
871 | |
1151 | |
872 | req->errorno = errno; |
1152 | req->errorno = errno; |
873 | |
1153 | |
874 | pthread_mutex_lock (&reslock); |
1154 | LOCK (reslock); |
875 | |
1155 | |
876 | req->next = 0; |
1156 | ++npending; |
877 | |
1157 | |
878 | if (rese) |
1158 | if (!reqq_push (&res_queue, req)) |
879 | { |
|
|
880 | rese->next = req; |
|
|
881 | rese = req; |
|
|
882 | } |
|
|
883 | else |
|
|
884 | { |
|
|
885 | rese = ress = req; |
|
|
886 | |
|
|
887 | /* write a dummy byte to the pipe so fh becomes ready */ |
1159 | /* write a dummy byte to the pipe so fh becomes ready */ |
888 | write (respipe [1], &respipe, 1); |
1160 | write (respipe [1], &respipe, 1); |
889 | } |
|
|
890 | |
1161 | |
891 | pthread_mutex_unlock (&reslock); |
1162 | self->req = 0; |
|
|
1163 | worker_clear (self); |
|
|
1164 | |
|
|
1165 | UNLOCK (reslock); |
892 | } |
1166 | } |
893 | while (type != REQ_QUIT); |
1167 | |
|
|
1168 | quit: |
|
|
1169 | LOCK (wrklock); |
|
|
1170 | worker_free (self); |
|
|
1171 | UNLOCK (wrklock); |
894 | |
1172 | |
895 | return 0; |
1173 | return 0; |
896 | } |
1174 | } |
897 | |
1175 | |
898 | /*****************************************************************************/ |
1176 | /*****************************************************************************/ |
899 | |
1177 | |
900 | static void atfork_prepare (void) |
1178 | static void atfork_prepare (void) |
901 | { |
1179 | { |
902 | pthread_mutex_lock (&reqlock); |
1180 | LOCK (wrklock); |
903 | pthread_mutex_lock (&reslock); |
1181 | LOCK (reqlock); |
|
|
1182 | LOCK (reslock); |
904 | #if !HAVE_PREADWRITE |
1183 | #if !HAVE_PREADWRITE |
905 | pthread_mutex_lock (&preadwritelock); |
1184 | LOCK (preadwritelock); |
906 | #endif |
1185 | #endif |
907 | #if !HAVE_READDIR_R |
1186 | #if !HAVE_READDIR_R |
908 | pthread_mutex_lock (&readdirlock); |
1187 | LOCK (readdirlock); |
909 | #endif |
1188 | #endif |
910 | } |
1189 | } |
911 | |
1190 | |
912 | static void atfork_parent (void) |
1191 | static void atfork_parent (void) |
913 | { |
1192 | { |
914 | #if !HAVE_READDIR_R |
1193 | #if !HAVE_READDIR_R |
915 | pthread_mutex_unlock (&readdirlock); |
1194 | UNLOCK (readdirlock); |
916 | #endif |
1195 | #endif |
917 | #if !HAVE_PREADWRITE |
1196 | #if !HAVE_PREADWRITE |
918 | pthread_mutex_unlock (&preadwritelock); |
1197 | UNLOCK (preadwritelock); |
919 | #endif |
1198 | #endif |
920 | pthread_mutex_unlock (&reslock); |
1199 | UNLOCK (reslock); |
921 | pthread_mutex_unlock (&reqlock); |
1200 | UNLOCK (reqlock); |
|
|
1201 | UNLOCK (wrklock); |
922 | } |
1202 | } |
923 | |
1203 | |
924 | static void atfork_child (void) |
1204 | static void atfork_child (void) |
925 | { |
1205 | { |
926 | aio_req prv; |
1206 | aio_req prv; |
927 | |
1207 | |
928 | started = 0; |
1208 | while (prv = reqq_shift (&req_queue)) |
|
|
1209 | req_free (prv); |
929 | |
1210 | |
930 | while (reqs) |
1211 | while (prv = reqq_shift (&res_queue)) |
|
|
1212 | req_free (prv); |
|
|
1213 | |
|
|
1214 | while (wrk_first.next != &wrk_first) |
931 | { |
1215 | { |
932 | prv = reqs; |
1216 | worker *wrk = wrk_first.next; |
933 | reqs = prv->next; |
1217 | |
|
|
1218 | if (wrk->req) |
|
|
1219 | req_free (wrk->req); |
|
|
1220 | |
|
|
1221 | worker_clear (wrk); |
934 | req_free (prv); |
1222 | worker_free (wrk); |
935 | } |
1223 | } |
936 | |
1224 | |
937 | reqs = reqe = 0; |
1225 | started = 0; |
938 | |
1226 | idle = 0; |
939 | while (ress) |
1227 | nreqs = 0; |
940 | { |
1228 | nready = 0; |
941 | prv = ress; |
1229 | npending = 0; |
942 | ress = prv->next; |
|
|
943 | req_free (prv); |
|
|
944 | } |
|
|
945 | |
|
|
946 | ress = rese = 0; |
|
|
947 | |
1230 | |
948 | close (respipe [0]); |
1231 | close (respipe [0]); |
949 | close (respipe [1]); |
1232 | close (respipe [1]); |
950 | create_pipe (); |
1233 | create_pipe (); |
951 | |
1234 | |
… | |
… | |
978 | PROTOTYPES: ENABLE |
1261 | PROTOTYPES: ENABLE |
979 | |
1262 | |
980 | BOOT: |
1263 | BOOT: |
981 | { |
1264 | { |
982 | HV *stash = gv_stashpv ("IO::AIO", 1); |
1265 | HV *stash = gv_stashpv ("IO::AIO", 1); |
|
|
1266 | |
983 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
1267 | newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
984 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
1268 | newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
985 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
1269 | newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
|
|
1270 | newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
|
|
1271 | newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
|
|
1272 | newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
986 | |
1273 | |
987 | create_pipe (); |
1274 | create_pipe (); |
988 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
1275 | pthread_atfork (atfork_prepare, atfork_parent, atfork_child); |
989 | } |
1276 | } |
990 | |
1277 | |
991 | void |
1278 | void |
992 | min_parallel (nthreads) |
1279 | max_poll_reqs (int nreqs) |
993 | int nthreads |
|
|
994 | PROTOTYPE: $ |
1280 | PROTOTYPE: $ |
|
|
1281 | CODE: |
|
|
1282 | max_poll_reqs = nreqs; |
995 | |
1283 | |
996 | void |
1284 | void |
997 | max_parallel (nthreads) |
1285 | max_poll_time (double nseconds) |
998 | int nthreads |
|
|
999 | PROTOTYPE: $ |
1286 | PROTOTYPE: $ |
|
|
1287 | CODE: |
|
|
1288 | max_poll_time = nseconds * AIO_TICKS; |
|
|
1289 | |
|
|
1290 | void |
|
|
1291 | min_parallel (int nthreads) |
|
|
1292 | PROTOTYPE: $ |
|
|
1293 | |
|
|
1294 | void |
|
|
1295 | max_parallel (int nthreads) |
|
|
1296 | PROTOTYPE: $ |
|
|
1297 | |
|
|
1298 | void |
|
|
1299 | max_idle (int nthreads) |
|
|
1300 | PROTOTYPE: $ |
|
|
1301 | CODE: |
|
|
1302 | set_max_idle (nthreads); |
1000 | |
1303 | |
1001 | int |
1304 | int |
1002 | max_outstanding (nreqs) |
1305 | max_outstanding (int maxreqs) |
1003 | int nreqs |
1306 | PROTOTYPE: $ |
1004 | PROTOTYPE: $ |
|
|
1005 | CODE: |
1307 | CODE: |
1006 | RETVAL = max_outstanding; |
1308 | RETVAL = max_outstanding; |
1007 | max_outstanding = nreqs; |
1309 | max_outstanding = maxreqs; |
|
|
1310 | OUTPUT: |
|
|
1311 | RETVAL |
1008 | |
1312 | |
1009 | void |
1313 | void |
1010 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1314 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1011 | SV * pathname |
1315 | SV8 * pathname |
1012 | int flags |
1316 | int flags |
1013 | int mode |
1317 | int mode |
1014 | SV * callback |
1318 | SV * callback |
1015 | PROTOTYPE: $$$;$ |
1319 | PROTOTYPE: $$$;$ |
1016 | PPCODE: |
1320 | PPCODE: |
1017 | { |
1321 | { |
1018 | dREQ; |
1322 | dREQ; |
1019 | |
1323 | |
1020 | req->type = REQ_OPEN; |
1324 | req->type = REQ_OPEN; |
1021 | req->data = newSVsv (pathname); |
1325 | req->sv1 = newSVsv (pathname); |
1022 | req->dataptr = SvPVbyte_nolen (req->data); |
1326 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1023 | req->fd = flags; |
1327 | req->int1 = flags; |
1024 | req->mode = mode; |
1328 | req->mode = mode; |
1025 | |
1329 | |
1026 | REQ_SEND; |
1330 | REQ_SEND; |
1027 | } |
1331 | } |
1028 | |
1332 | |
… | |
… | |
1038 | PPCODE: |
1342 | PPCODE: |
1039 | { |
1343 | { |
1040 | dREQ; |
1344 | dREQ; |
1041 | |
1345 | |
1042 | req->type = ix; |
1346 | req->type = ix; |
1043 | req->fh = newSVsv (fh); |
1347 | req->fh = newSVsv (fh); |
1044 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1348 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1045 | |
1349 | |
1046 | REQ_SEND (req); |
1350 | REQ_SEND (req); |
1047 | } |
1351 | } |
1048 | |
1352 | |
1049 | void |
1353 | void |
1050 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1354 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1051 | SV * fh |
1355 | SV * fh |
1052 | UV offset |
1356 | UV offset |
1053 | UV length |
1357 | UV length |
1054 | SV * data |
1358 | SV8 * data |
1055 | UV dataoffset |
1359 | UV dataoffset |
1056 | SV * callback |
1360 | SV * callback |
1057 | ALIAS: |
1361 | ALIAS: |
1058 | aio_read = REQ_READ |
1362 | aio_read = REQ_READ |
1059 | aio_write = REQ_WRITE |
1363 | aio_write = REQ_WRITE |
1060 | PROTOTYPE: $$$$$;$ |
1364 | PROTOTYPE: $$$$$;$ |
1061 | PPCODE: |
1365 | PPCODE: |
1062 | { |
1366 | { |
1063 | aio_req req; |
|
|
1064 | STRLEN svlen; |
1367 | STRLEN svlen; |
1065 | char *svptr = SvPVbyte (data, svlen); |
1368 | char *svptr = SvPVbyte (data, svlen); |
1066 | |
1369 | |
1067 | SvUPGRADE (data, SVt_PV); |
1370 | SvUPGRADE (data, SVt_PV); |
1068 | SvPOK_on (data); |
1371 | SvPOK_on (data); |
… | |
… | |
1090 | |
1393 | |
1091 | { |
1394 | { |
1092 | dREQ; |
1395 | dREQ; |
1093 | |
1396 | |
1094 | req->type = ix; |
1397 | req->type = ix; |
1095 | req->fh = newSVsv (fh); |
1398 | req->fh = newSVsv (fh); |
1096 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1399 | req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
1097 | : IoOFP (sv_2io (fh))); |
1400 | : IoOFP (sv_2io (fh))); |
1098 | req->offset = offset; |
1401 | req->offs = offset; |
1099 | req->length = length; |
1402 | req->size = length; |
1100 | req->data = SvREFCNT_inc (data); |
1403 | req->sv1 = SvREFCNT_inc (data); |
1101 | req->dataptr = (char *)svptr + dataoffset; |
1404 | req->ptr1 = (char *)svptr + dataoffset; |
|
|
1405 | req->stroffset = dataoffset; |
1102 | |
1406 | |
1103 | if (!SvREADONLY (data)) |
1407 | if (!SvREADONLY (data)) |
1104 | { |
1408 | { |
1105 | SvREADONLY_on (data); |
1409 | SvREADONLY_on (data); |
1106 | req->data2ptr = (void *)data; |
1410 | req->flags |= FLAG_SV1_RO_OFF; |
1107 | } |
1411 | } |
1108 | |
1412 | |
1109 | REQ_SEND; |
1413 | REQ_SEND; |
1110 | } |
1414 | } |
|
|
1415 | } |
|
|
1416 | |
|
|
1417 | void |
|
|
1418 | aio_readlink (path,callback=&PL_sv_undef) |
|
|
1419 | SV8 * path |
|
|
1420 | SV * callback |
|
|
1421 | PROTOTYPE: $$;$ |
|
|
1422 | PPCODE: |
|
|
1423 | { |
|
|
1424 | SV *data; |
|
|
1425 | dREQ; |
|
|
1426 | |
|
|
1427 | data = newSV (NAME_MAX); |
|
|
1428 | SvPOK_on (data); |
|
|
1429 | |
|
|
1430 | req->type = REQ_READLINK; |
|
|
1431 | req->fh = newSVsv (path); |
|
|
1432 | req->ptr2 = SvPVbyte_nolen (req->fh); |
|
|
1433 | req->sv1 = data; |
|
|
1434 | req->ptr1 = SvPVbyte_nolen (data); |
|
|
1435 | |
|
|
1436 | REQ_SEND; |
1111 | } |
1437 | } |
1112 | |
1438 | |
1113 | void |
1439 | void |
1114 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1440 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1115 | SV * out_fh |
1441 | SV * out_fh |
… | |
… | |
1121 | PPCODE: |
1447 | PPCODE: |
1122 | { |
1448 | { |
1123 | dREQ; |
1449 | dREQ; |
1124 | |
1450 | |
1125 | req->type = REQ_SENDFILE; |
1451 | req->type = REQ_SENDFILE; |
1126 | req->fh = newSVsv (out_fh); |
1452 | req->fh = newSVsv (out_fh); |
1127 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1453 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
1128 | req->fh2 = newSVsv (in_fh); |
1454 | req->sv2 = newSVsv (in_fh); |
1129 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1455 | req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1130 | req->offset = in_offset; |
1456 | req->offs = in_offset; |
1131 | req->length = length; |
1457 | req->size = length; |
1132 | |
1458 | |
1133 | REQ_SEND; |
1459 | REQ_SEND; |
1134 | } |
1460 | } |
1135 | |
1461 | |
1136 | void |
1462 | void |
… | |
… | |
1143 | PPCODE: |
1469 | PPCODE: |
1144 | { |
1470 | { |
1145 | dREQ; |
1471 | dREQ; |
1146 | |
1472 | |
1147 | req->type = REQ_READAHEAD; |
1473 | req->type = REQ_READAHEAD; |
1148 | req->fh = newSVsv (fh); |
1474 | req->fh = newSVsv (fh); |
1149 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1475 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1150 | req->offset = offset; |
1476 | req->offs = offset; |
1151 | req->length = length; |
1477 | req->size = length; |
1152 | |
1478 | |
1153 | REQ_SEND; |
1479 | REQ_SEND; |
1154 | } |
1480 | } |
1155 | |
1481 | |
1156 | void |
1482 | void |
1157 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1483 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1158 | SV * fh_or_path |
1484 | SV8 * fh_or_path |
1159 | SV * callback |
1485 | SV * callback |
1160 | ALIAS: |
1486 | ALIAS: |
1161 | aio_stat = REQ_STAT |
1487 | aio_stat = REQ_STAT |
1162 | aio_lstat = REQ_LSTAT |
1488 | aio_lstat = REQ_LSTAT |
1163 | PPCODE: |
1489 | PPCODE: |
1164 | { |
1490 | { |
1165 | dREQ; |
1491 | dREQ; |
1166 | |
1492 | |
1167 | New (0, req->statdata, 1, Stat_t); |
1493 | req->ptr2 = malloc (sizeof (Stat_t)); |
1168 | if (!req->statdata) |
1494 | if (!req->ptr2) |
1169 | { |
1495 | { |
1170 | req_free (req); |
1496 | req_free (req); |
1171 | croak ("out of memory during aio_req->statdata allocation"); |
1497 | croak ("out of memory during aio_stat statdata allocation"); |
1172 | } |
1498 | } |
|
|
1499 | |
|
|
1500 | req->flags |= FLAG_PTR2_FREE; |
1173 | |
1501 | |
1174 | if (SvPOK (fh_or_path)) |
1502 | if (SvPOK (fh_or_path)) |
1175 | { |
1503 | { |
1176 | req->type = ix; |
1504 | req->type = ix; |
1177 | req->data = newSVsv (fh_or_path); |
1505 | req->sv1 = newSVsv (fh_or_path); |
1178 | req->dataptr = SvPVbyte_nolen (req->data); |
1506 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1179 | } |
1507 | } |
1180 | else |
1508 | else |
1181 | { |
1509 | { |
1182 | req->type = REQ_FSTAT; |
1510 | req->type = REQ_FSTAT; |
1183 | req->fh = newSVsv (fh_or_path); |
1511 | req->fh = newSVsv (fh_or_path); |
1184 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1512 | req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1185 | } |
1513 | } |
1186 | |
1514 | |
1187 | REQ_SEND; |
1515 | REQ_SEND; |
1188 | } |
1516 | } |
1189 | |
1517 | |
1190 | void |
1518 | void |
1191 | aio_unlink (pathname,callback=&PL_sv_undef) |
1519 | aio_unlink (pathname,callback=&PL_sv_undef) |
1192 | SV * pathname |
1520 | SV8 * pathname |
1193 | SV * callback |
1521 | SV * callback |
1194 | ALIAS: |
1522 | ALIAS: |
1195 | aio_unlink = REQ_UNLINK |
1523 | aio_unlink = REQ_UNLINK |
1196 | aio_rmdir = REQ_RMDIR |
1524 | aio_rmdir = REQ_RMDIR |
1197 | aio_readdir = REQ_READDIR |
1525 | aio_readdir = REQ_READDIR |
1198 | PPCODE: |
1526 | PPCODE: |
1199 | { |
1527 | { |
1200 | dREQ; |
1528 | dREQ; |
1201 | |
1529 | |
1202 | req->type = ix; |
1530 | req->type = ix; |
1203 | req->data = newSVsv (pathname); |
1531 | req->sv1 = newSVsv (pathname); |
1204 | req->dataptr = SvPVbyte_nolen (req->data); |
1532 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1205 | |
1533 | |
1206 | REQ_SEND; |
1534 | REQ_SEND; |
1207 | } |
1535 | } |
1208 | |
1536 | |
1209 | void |
1537 | void |
1210 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1538 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1211 | SV * oldpath |
1539 | SV8 * oldpath |
1212 | SV * newpath |
1540 | SV8 * newpath |
1213 | SV * callback |
1541 | SV * callback |
1214 | ALIAS: |
1542 | ALIAS: |
1215 | aio_link = REQ_LINK |
1543 | aio_link = REQ_LINK |
1216 | aio_symlink = REQ_SYMLINK |
1544 | aio_symlink = REQ_SYMLINK |
1217 | aio_rename = REQ_RENAME |
1545 | aio_rename = REQ_RENAME |
1218 | PPCODE: |
1546 | PPCODE: |
1219 | { |
1547 | { |
1220 | dREQ; |
1548 | dREQ; |
1221 | |
1549 | |
1222 | req->type = ix; |
1550 | req->type = ix; |
1223 | req->fh = newSVsv (oldpath); |
1551 | req->fh = newSVsv (oldpath); |
1224 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1552 | req->ptr2 = SvPVbyte_nolen (req->fh); |
1225 | req->data = newSVsv (newpath); |
1553 | req->sv1 = newSVsv (newpath); |
1226 | req->dataptr = SvPVbyte_nolen (req->data); |
1554 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
1227 | |
1555 | |
1228 | REQ_SEND; |
1556 | REQ_SEND; |
1229 | } |
1557 | } |
1230 | |
1558 | |
1231 | void |
1559 | void |
1232 | aio_sleep (delay,callback=&PL_sv_undef) |
1560 | aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) |
1233 | double delay |
1561 | SV8 * pathname |
1234 | SV * callback |
1562 | SV * callback |
|
|
1563 | UV mode |
|
|
1564 | UV dev |
1235 | PPCODE: |
1565 | PPCODE: |
1236 | { |
1566 | { |
1237 | dREQ; |
1567 | dREQ; |
|
|
1568 | |
|
|
1569 | req->type = REQ_MKNOD; |
|
|
1570 | req->sv1 = newSVsv (pathname); |
|
|
1571 | req->ptr1 = SvPVbyte_nolen (req->sv1); |
|
|
1572 | req->mode = (mode_t)mode; |
|
|
1573 | req->offs = dev; |
|
|
1574 | |
|
|
1575 | REQ_SEND; |
|
|
1576 | } |
1238 | |
1577 | |
|
|
1578 | void |
|
|
1579 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1580 | double delay |
|
|
1581 | SV * callback |
|
|
1582 | PPCODE: |
|
|
1583 | { |
|
|
1584 | dREQ; |
|
|
1585 | |
1239 | req->type = REQ_SLEEP; |
1586 | req->type = REQ_BUSY; |
1240 | req->fd = delay < 0. ? 0 : delay; |
1587 | req->int1 = delay < 0. ? 0 : delay; |
1241 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
1588 | req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); |
1242 | |
1589 | |
1243 | REQ_SEND; |
1590 | REQ_SEND; |
1244 | } |
1591 | } |
1245 | |
1592 | |
1246 | void |
1593 | void |
… | |
… | |
1250 | PPCODE: |
1597 | PPCODE: |
1251 | { |
1598 | { |
1252 | dREQ; |
1599 | dREQ; |
1253 | |
1600 | |
1254 | req->type = REQ_GROUP; |
1601 | req->type = REQ_GROUP; |
|
|
1602 | |
1255 | req_send (req); |
1603 | req_send (req); |
1256 | |
|
|
1257 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1604 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1258 | } |
1605 | } |
1259 | |
1606 | |
1260 | void |
1607 | void |
1261 | aio_nop (callback=&PL_sv_undef) |
1608 | aio_nop (callback=&PL_sv_undef) |
1262 | SV * callback |
1609 | SV * callback |
1263 | PPCODE: |
1610 | PPCODE: |
1264 | { |
1611 | { |
1265 | dREQ; |
1612 | dREQ; |
1266 | |
1613 | |
1267 | req->type = REQ_NOP; |
1614 | req->type = REQ_NOP; |
1268 | |
1615 | |
1269 | REQ_SEND; |
1616 | REQ_SEND; |
1270 | } |
1617 | } |
1271 | |
1618 | |
1272 | #if 0 |
1619 | int |
1273 | |
1620 | aioreq_pri (int pri = 0) |
1274 | void |
1621 | PROTOTYPE: ;$ |
1275 | aio_pri (int pri = DEFAULT_PRI) |
|
|
1276 | CODE: |
1622 | CODE: |
|
|
1623 | RETVAL = next_pri - PRI_BIAS; |
|
|
1624 | if (items > 0) |
|
|
1625 | { |
1277 | if (pri < PRI_MIN) pri = PRI_MIN; |
1626 | if (pri < PRI_MIN) pri = PRI_MIN; |
1278 | if (pri > PRI_MAX) pri = PRI_MAX; |
1627 | if (pri > PRI_MAX) pri = PRI_MAX; |
1279 | next_pri = pri + PRI_BIAS; |
1628 | next_pri = pri + PRI_BIAS; |
|
|
1629 | } |
|
|
1630 | OUTPUT: |
|
|
1631 | RETVAL |
1280 | |
1632 | |
1281 | #endif |
1633 | void |
|
|
1634 | aioreq_nice (int nice = 0) |
|
|
1635 | CODE: |
|
|
1636 | nice = next_pri - nice; |
|
|
1637 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1638 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1639 | next_pri = nice + PRI_BIAS; |
1282 | |
1640 | |
1283 | void |
1641 | void |
1284 | flush () |
1642 | flush () |
1285 | PROTOTYPE: |
1643 | PROTOTYPE: |
1286 | CODE: |
1644 | CODE: |
… | |
… | |
1288 | { |
1646 | { |
1289 | poll_wait (); |
1647 | poll_wait (); |
1290 | poll_cb (); |
1648 | poll_cb (); |
1291 | } |
1649 | } |
1292 | |
1650 | |
1293 | void |
1651 | int |
1294 | poll() |
1652 | poll() |
1295 | PROTOTYPE: |
1653 | PROTOTYPE: |
1296 | CODE: |
1654 | CODE: |
1297 | if (nreqs) |
|
|
1298 | { |
|
|
1299 | poll_wait (); |
1655 | poll_wait (); |
1300 | poll_cb (); |
1656 | RETVAL = poll_cb (); |
1301 | } |
1657 | OUTPUT: |
|
|
1658 | RETVAL |
1302 | |
1659 | |
1303 | int |
1660 | int |
1304 | poll_fileno() |
1661 | poll_fileno() |
1305 | PROTOTYPE: |
1662 | PROTOTYPE: |
1306 | CODE: |
1663 | CODE: |
… | |
… | |
1318 | |
1675 | |
1319 | void |
1676 | void |
1320 | poll_wait() |
1677 | poll_wait() |
1321 | PROTOTYPE: |
1678 | PROTOTYPE: |
1322 | CODE: |
1679 | CODE: |
1323 | if (nreqs) |
|
|
1324 | poll_wait (); |
1680 | poll_wait (); |
1325 | |
1681 | |
1326 | int |
1682 | int |
1327 | nreqs() |
1683 | nreqs() |
1328 | PROTOTYPE: |
1684 | PROTOTYPE: |
1329 | CODE: |
1685 | CODE: |
1330 | RETVAL = nreqs; |
1686 | RETVAL = nreqs; |
1331 | OUTPUT: |
1687 | OUTPUT: |
1332 | RETVAL |
1688 | RETVAL |
1333 | |
1689 | |
|
|
1690 | int |
|
|
1691 | nready() |
|
|
1692 | PROTOTYPE: |
|
|
1693 | CODE: |
|
|
1694 | RETVAL = get_nready (); |
|
|
1695 | OUTPUT: |
|
|
1696 | RETVAL |
|
|
1697 | |
|
|
1698 | int |
|
|
1699 | npending() |
|
|
1700 | PROTOTYPE: |
|
|
1701 | CODE: |
|
|
1702 | RETVAL = get_npending (); |
|
|
1703 | OUTPUT: |
|
|
1704 | RETVAL |
|
|
1705 | |
|
|
1706 | int |
|
|
1707 | nthreads() |
|
|
1708 | PROTOTYPE: |
|
|
1709 | CODE: |
|
|
1710 | if (WORDACCESS_UNSAFE) LOCK (wrklock); |
|
|
1711 | RETVAL = started; |
|
|
1712 | if (WORDACCESS_UNSAFE) UNLOCK (wrklock); |
|
|
1713 | OUTPUT: |
|
|
1714 | RETVAL |
|
|
1715 | |
1334 | PROTOTYPES: DISABLE |
1716 | PROTOTYPES: DISABLE |
1335 | |
1717 | |
1336 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1718 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1337 | |
1719 | |
1338 | void |
1720 | void |
1339 | cancel (aio_req_ornot req) |
1721 | cancel (aio_req_ornot req) |
1340 | PROTOTYPE: |
|
|
1341 | CODE: |
1722 | CODE: |
1342 | req_cancel (req); |
1723 | req_cancel (req); |
1343 | |
1724 | |
1344 | void |
1725 | void |
1345 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1726 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
… | |
… | |
1354 | PPCODE: |
1735 | PPCODE: |
1355 | { |
1736 | { |
1356 | int i; |
1737 | int i; |
1357 | aio_req req; |
1738 | aio_req req; |
1358 | |
1739 | |
1359 | if (grp->fd == 2) |
1740 | if (grp->int1 == 2) |
1360 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1741 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1361 | |
1742 | |
1362 | for (i = 1; i < items; ++i ) |
1743 | for (i = 1; i < items; ++i ) |
1363 | { |
1744 | { |
1364 | if (GIMME_V != G_VOID) |
1745 | if (GIMME_V != G_VOID) |
… | |
… | |
1366 | |
1747 | |
1367 | req = SvAIO_REQ (ST (i)); |
1748 | req = SvAIO_REQ (ST (i)); |
1368 | |
1749 | |
1369 | if (req) |
1750 | if (req) |
1370 | { |
1751 | { |
1371 | ++grp->length; |
1752 | ++grp->size; |
1372 | req->grp = grp; |
1753 | req->grp = grp; |
1373 | |
1754 | |
1374 | req->grp_prev = 0; |
1755 | req->grp_prev = 0; |
1375 | req->grp_next = grp->grp_first; |
1756 | req->grp_next = grp->grp_first; |
1376 | |
1757 | |
… | |
… | |
1381 | } |
1762 | } |
1382 | } |
1763 | } |
1383 | } |
1764 | } |
1384 | |
1765 | |
1385 | void |
1766 | void |
|
|
1767 | cancel_subs (aio_req_ornot req) |
|
|
1768 | CODE: |
|
|
1769 | req_cancel_subs (req); |
|
|
1770 | |
|
|
1771 | void |
1386 | result (aio_req grp, ...) |
1772 | result (aio_req grp, ...) |
1387 | CODE: |
1773 | CODE: |
1388 | { |
1774 | { |
1389 | int i; |
1775 | int i; |
|
|
1776 | AV *av; |
|
|
1777 | |
|
|
1778 | grp->errorno = errno; |
|
|
1779 | |
1390 | AV *av = newAV (); |
1780 | av = newAV (); |
1391 | |
1781 | |
1392 | for (i = 1; i < items; ++i ) |
1782 | for (i = 1; i < items; ++i ) |
1393 | av_push (av, newSVsv (ST (i))); |
1783 | av_push (av, newSVsv (ST (i))); |
1394 | |
1784 | |
1395 | SvREFCNT_dec (grp->data); |
1785 | SvREFCNT_dec (grp->sv1); |
1396 | grp->data = (SV *)av; |
1786 | grp->sv1 = (SV *)av; |
1397 | } |
1787 | } |
1398 | |
1788 | |
1399 | void |
1789 | void |
|
|
1790 | errno (aio_req grp, int errorno = errno) |
|
|
1791 | CODE: |
|
|
1792 | grp->errorno = errorno; |
|
|
1793 | |
|
|
1794 | void |
1400 | feed_limit (aio_req grp, int limit) |
1795 | limit (aio_req grp, int limit) |
1401 | CODE: |
1796 | CODE: |
1402 | grp->fd2 = limit; |
1797 | grp->int2 = limit; |
1403 | aio_grp_feed (grp); |
1798 | aio_grp_feed (grp); |
1404 | |
1799 | |
1405 | void |
1800 | void |
1406 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1801 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
1407 | CODE: |
1802 | CODE: |
1408 | { |
1803 | { |
1409 | SvREFCNT_dec (grp->fh2); |
1804 | SvREFCNT_dec (grp->sv2); |
1410 | grp->fh2 = newSVsv (callback); |
1805 | grp->sv2 = newSVsv (callback); |
1411 | |
1806 | |
1412 | if (grp->fd2 <= 0) |
1807 | if (grp->int2 <= 0) |
1413 | grp->fd2 = 2; |
1808 | grp->int2 = 2; |
1414 | |
1809 | |
1415 | aio_grp_feed (grp); |
1810 | aio_grp_feed (grp); |
1416 | } |
1811 | } |
1417 | |
1812 | |