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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" |
… | |
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9 | |
18 | |
10 | #include <pthread.h> |
19 | #include <pthread.h> |
11 | |
20 | |
12 | #include <stddef.h> |
21 | #include <stddef.h> |
13 | #include <errno.h> |
22 | #include <errno.h> |
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23 | #include <sys/time.h> |
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24 | #include <sys/select.h> |
14 | #include <sys/types.h> |
25 | #include <sys/types.h> |
15 | #include <sys/stat.h> |
26 | #include <sys/stat.h> |
16 | #include <limits.h> |
27 | #include <limits.h> |
17 | #include <unistd.h> |
28 | #include <unistd.h> |
18 | #include <fcntl.h> |
29 | #include <fcntl.h> |
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37 | /* used for struct dirent, AIX doesn't provide it */ |
48 | /* used for struct dirent, AIX doesn't provide it */ |
38 | #ifndef NAME_MAX |
49 | #ifndef NAME_MAX |
39 | # define NAME_MAX 4096 |
50 | # define NAME_MAX 4096 |
40 | #endif |
51 | #endif |
41 | |
52 | |
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53 | #ifndef PTHREAD_STACK_MIN |
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54 | /* care for broken platforms, e.g. windows */ |
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55 | # define PTHREAD_STACK_MIN 16384 |
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56 | #endif |
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57 | |
42 | #if __ia64 |
58 | #if __ia64 |
43 | # define STACKSIZE 65536 |
59 | # define STACKSIZE 65536 |
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60 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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61 | # define STACKSIZE PTHREAD_STACK_MIN |
44 | #else |
62 | #else |
45 | # define STACKSIZE 8192 |
63 | # define STACKSIZE 16384 |
46 | #endif |
64 | #endif |
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65 | |
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66 | /* buffer size for various temporary buffers */ |
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67 | #define AIO_BUFSIZE 65536 |
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68 | |
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69 | #define dBUF \ |
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70 | char *aio_buf; \ |
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71 | LOCK (wrklock); \ |
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72 | self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ |
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73 | UNLOCK (wrklock); \ |
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74 | if (!aio_buf) \ |
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75 | return -1; |
47 | |
76 | |
48 | enum { |
77 | enum { |
49 | REQ_QUIT, |
78 | REQ_QUIT, |
50 | REQ_OPEN, REQ_CLOSE, |
79 | REQ_OPEN, REQ_CLOSE, |
51 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
80 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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53 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
82 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
54 | REQ_FSYNC, REQ_FDATASYNC, |
83 | REQ_FSYNC, REQ_FDATASYNC, |
55 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
84 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
56 | REQ_READDIR, |
85 | REQ_READDIR, |
57 | REQ_LINK, REQ_SYMLINK, |
86 | REQ_LINK, REQ_SYMLINK, |
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87 | REQ_GROUP, REQ_NOP, |
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88 | REQ_BUSY, |
58 | }; |
89 | }; |
59 | |
90 | |
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91 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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92 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
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93 | |
60 | typedef struct aio_cb { |
94 | typedef struct aio_cb |
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95 | { |
61 | struct aio_cb *volatile next; |
96 | struct aio_cb *volatile next; |
62 | |
97 | |
63 | int type; |
98 | SV *data, *callback; |
64 | |
99 | SV *fh, *fh2; |
65 | /* should receive a cleanup, with unions */ |
100 | void *dataptr, *data2ptr; |
66 | int fd, fd2; |
101 | Stat_t *statdata; |
67 | off_t offset; |
102 | off_t offset; |
68 | size_t length; |
103 | size_t length; |
69 | ssize_t result; |
104 | ssize_t result; |
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105 | |
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106 | STRLEN dataoffset; |
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107 | int type; |
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108 | int fd, fd2; |
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109 | int errorno; |
70 | mode_t mode; /* open */ |
110 | mode_t mode; /* open */ |
71 | int errorno; |
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72 | SV *data, *callback; |
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73 | SV *fh, *fh2; |
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74 | void *dataptr, *data2ptr; |
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75 | STRLEN dataoffset; |
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76 | |
111 | |
77 | Stat_t *statdata; |
112 | unsigned char flags; |
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113 | unsigned char pri; |
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114 | |
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115 | SV *self; /* the perl counterpart of this request, if any */ |
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116 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
78 | } aio_cb; |
117 | } aio_cb; |
79 | |
118 | |
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119 | enum { |
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120 | FLAG_CANCELLED = 0x01, |
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121 | }; |
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122 | |
80 | typedef aio_cb *aio_req; |
123 | typedef aio_cb *aio_req; |
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124 | typedef aio_cb *aio_req_ornot; |
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125 | |
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126 | enum { |
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127 | PRI_MIN = -4, |
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128 | PRI_MAX = 4, |
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129 | |
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130 | DEFAULT_PRI = 0, |
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131 | PRI_BIAS = -PRI_MIN, |
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132 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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133 | }; |
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134 | |
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135 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
81 | |
136 | |
82 | static int started, wanted; |
137 | static int started, wanted; |
83 | static volatile int nreqs; |
138 | static volatile int nreqs; |
84 | static int max_outstanding = 1<<30; |
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85 | static int respipe [2]; |
139 | static int respipe [2]; |
86 | |
140 | |
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141 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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142 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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143 | #else |
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144 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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145 | #endif |
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146 | |
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147 | #define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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148 | #define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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149 | |
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150 | /* worker threads management */ |
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151 | static pthread_mutex_t wrklock = AIO_MUTEX_INIT; |
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152 | |
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153 | typedef struct worker { |
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154 | /* locked by wrklock */ |
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155 | struct worker *prev, *next; |
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156 | |
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157 | pthread_t tid; |
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158 | |
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159 | /* locked by reslock, reqlock or wrklock */ |
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160 | aio_req req; /* currently processed request */ |
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161 | void *dbuf; |
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162 | DIR *dirp; |
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163 | } worker; |
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164 | |
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165 | static worker wrk_first = { &wrk_first, &wrk_first, 0 }; |
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166 | |
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167 | static void worker_clear (worker *wrk) |
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168 | { |
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169 | if (wrk->dirp) |
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170 | { |
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171 | closedir (wrk->dirp); |
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172 | wrk->dirp = 0; |
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173 | } |
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174 | |
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175 | if (wrk->dbuf) |
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176 | { |
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177 | free (wrk->dbuf); |
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178 | wrk->dbuf = 0; |
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179 | } |
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180 | } |
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181 | |
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182 | static void worker_free (worker *wrk) |
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183 | { |
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184 | wrk->next->prev = wrk->prev; |
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185 | wrk->prev->next = wrk->next; |
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186 | |
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187 | free (wrk); |
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188 | } |
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189 | |
87 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
190 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
88 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
191 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
89 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
192 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
90 | |
193 | |
91 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
194 | /* |
92 | static volatile aio_req ress, rese; /* queue start, queue end */ |
195 | * a somewhat faster data structure might be nice, but |
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196 | * with 8 priorities this actually needs <20 insns |
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197 | * per shift, the most expensive operation. |
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198 | */ |
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199 | typedef struct { |
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200 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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201 | int size; |
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202 | } reqq; |
93 | |
203 | |
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204 | static reqq req_queue; |
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205 | static reqq res_queue; |
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206 | |
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207 | int reqq_push (reqq *q, aio_req req) |
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208 | { |
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209 | int pri = req->pri; |
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210 | req->next = 0; |
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211 | |
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212 | if (q->qe[pri]) |
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213 | { |
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214 | q->qe[pri]->next = req; |
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215 | q->qe[pri] = req; |
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216 | } |
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217 | else |
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218 | q->qe[pri] = q->qs[pri] = req; |
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219 | |
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220 | return q->size++; |
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221 | } |
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222 | |
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223 | aio_req reqq_shift (reqq *q) |
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224 | { |
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225 | int pri; |
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226 | |
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227 | if (!q->size) |
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228 | return 0; |
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229 | |
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230 | --q->size; |
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231 | |
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232 | for (pri = NUM_PRI; pri--; ) |
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233 | { |
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234 | aio_req req = q->qs[pri]; |
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235 | |
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236 | if (req) |
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237 | { |
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238 | if (!(q->qs[pri] = req->next)) |
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239 | q->qe[pri] = 0; |
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240 | |
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241 | return req; |
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242 | } |
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243 | } |
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244 | |
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245 | abort (); |
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246 | } |
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247 | |
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248 | static int poll_cb (int max); |
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249 | static void req_invoke (aio_req req); |
94 | static void free_req (aio_req req) |
250 | static void req_free (aio_req req); |
95 | { |
251 | static void req_cancel (aio_req req); |
96 | if (req->data) |
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97 | SvREFCNT_dec (req->data); |
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98 | |
252 | |
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253 | /* must be called at most once */ |
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254 | static SV *req_sv (aio_req req, const char *klass) |
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255 | { |
99 | if (req->fh) |
256 | if (!req->self) |
100 | SvREFCNT_dec (req->fh); |
257 | { |
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258 | req->self = (SV *)newHV (); |
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259 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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260 | } |
101 | |
261 | |
102 | if (req->fh2) |
262 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
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263 | } |
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264 | |
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265 | static aio_req SvAIO_REQ (SV *sv) |
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266 | { |
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267 | MAGIC *mg; |
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268 | |
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269 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
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270 | croak ("object of class " AIO_REQ_KLASS " expected"); |
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271 | |
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272 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
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273 | |
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274 | return mg ? (aio_req)mg->mg_ptr : 0; |
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275 | } |
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276 | |
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277 | static void aio_grp_feed (aio_req grp) |
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278 | { |
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279 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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280 | { |
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281 | int old_len = grp->length; |
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282 | |
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283 | if (grp->fh2 && SvOK (grp->fh2)) |
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284 | { |
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285 | dSP; |
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286 | |
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287 | ENTER; |
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288 | SAVETMPS; |
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289 | PUSHMARK (SP); |
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290 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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291 | PUTBACK; |
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292 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
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293 | SPAGAIN; |
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294 | FREETMPS; |
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295 | LEAVE; |
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296 | } |
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297 | |
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298 | /* stop if no progress has been made */ |
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299 | if (old_len == grp->length) |
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300 | { |
103 | SvREFCNT_dec (req->fh2); |
301 | SvREFCNT_dec (grp->fh2); |
104 | |
302 | grp->fh2 = 0; |
105 | if (req->statdata) |
303 | break; |
106 | Safefree (req->statdata); |
304 | } |
107 | |
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108 | if (req->callback) |
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109 | SvREFCNT_dec (req->callback); |
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110 | |
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111 | if (req->type == REQ_READDIR && req->result >= 0) |
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112 | free (req->data2ptr); |
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113 | |
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114 | Safefree (req); |
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115 | } |
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116 | |
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117 | static void |
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118 | poll_wait () |
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119 | { |
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120 | if (nreqs && !ress) |
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121 | { |
305 | } |
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306 | } |
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307 | |
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308 | static void aio_grp_dec (aio_req grp) |
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309 | { |
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310 | --grp->length; |
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311 | |
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312 | /* call feeder, if applicable */ |
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313 | aio_grp_feed (grp); |
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314 | |
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315 | /* finish, if done */ |
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316 | if (!grp->length && grp->fd) |
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317 | { |
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318 | req_invoke (grp); |
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319 | req_free (grp); |
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320 | } |
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321 | } |
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322 | |
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323 | static void poll_wait () |
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324 | { |
122 | fd_set rfd; |
325 | fd_set rfd; |
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326 | |
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327 | while (nreqs) |
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328 | { |
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329 | int size; |
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330 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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331 | LOCK (reslock); |
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332 | #endif |
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333 | size = res_queue.size; |
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334 | #if !(__i386 || __x86_64) /* safe without sempahore on these archs */ |
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335 | UNLOCK (reslock); |
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336 | #endif |
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337 | |
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338 | if (size) |
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339 | return; |
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340 | |
123 | FD_ZERO(&rfd); |
341 | FD_ZERO(&rfd); |
124 | FD_SET(respipe [0], &rfd); |
342 | FD_SET(respipe [0], &rfd); |
125 | |
343 | |
126 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
344 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
127 | } |
345 | } |
128 | } |
346 | } |
129 | |
347 | |
130 | static int |
348 | static void req_invoke (aio_req req) |
131 | poll_cb () |
349 | { |
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350 | dSP; |
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351 | |
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352 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
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353 | { |
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354 | errno = req->errorno; |
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355 | |
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356 | ENTER; |
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357 | SAVETMPS; |
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358 | PUSHMARK (SP); |
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359 | EXTEND (SP, 1); |
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360 | |
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361 | switch (req->type) |
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362 | { |
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363 | case REQ_READDIR: |
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364 | { |
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365 | SV *rv = &PL_sv_undef; |
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366 | |
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367 | if (req->result >= 0) |
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368 | { |
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369 | int i; |
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370 | char *buf = req->data2ptr; |
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371 | AV *av = newAV (); |
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372 | |
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373 | av_extend (av, req->result - 1); |
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374 | |
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375 | for (i = 0; i < req->result; ++i) |
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376 | { |
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377 | SV *sv = newSVpv (buf, 0); |
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378 | |
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379 | av_store (av, i, sv); |
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380 | buf += SvCUR (sv) + 1; |
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381 | } |
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382 | |
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383 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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384 | } |
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385 | |
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386 | PUSHs (rv); |
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387 | } |
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388 | break; |
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389 | |
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390 | case REQ_OPEN: |
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391 | { |
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392 | /* convert fd to fh */ |
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393 | SV *fh; |
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394 | |
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395 | PUSHs (sv_2mortal (newSViv (req->result))); |
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396 | PUTBACK; |
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397 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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398 | SPAGAIN; |
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399 | |
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400 | fh = SvREFCNT_inc (POPs); |
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401 | |
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402 | PUSHMARK (SP); |
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403 | XPUSHs (sv_2mortal (fh)); |
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404 | } |
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405 | break; |
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406 | |
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407 | case REQ_GROUP: |
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408 | req->fd = 2; /* mark group as finished */ |
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409 | |
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410 | if (req->data) |
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411 | { |
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412 | int i; |
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413 | AV *av = (AV *)req->data; |
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414 | |
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415 | EXTEND (SP, AvFILL (av) + 1); |
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416 | for (i = 0; i <= AvFILL (av); ++i) |
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417 | PUSHs (*av_fetch (av, i, 0)); |
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418 | } |
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419 | break; |
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420 | |
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421 | case REQ_NOP: |
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422 | case REQ_BUSY: |
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423 | break; |
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424 | |
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425 | default: |
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426 | PUSHs (sv_2mortal (newSViv (req->result))); |
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427 | break; |
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428 | } |
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429 | |
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430 | |
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431 | PUTBACK; |
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432 | call_sv (req->callback, G_VOID | G_EVAL); |
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433 | SPAGAIN; |
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434 | |
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435 | FREETMPS; |
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436 | LEAVE; |
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437 | } |
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438 | |
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439 | if (req->grp) |
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440 | { |
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441 | aio_req grp = req->grp; |
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442 | |
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443 | /* unlink request */ |
|
|
444 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
|
|
445 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
|
|
446 | |
|
|
447 | if (grp->grp_first == req) |
|
|
448 | grp->grp_first = req->grp_next; |
|
|
449 | |
|
|
450 | aio_grp_dec (grp); |
|
|
451 | } |
|
|
452 | |
|
|
453 | if (SvTRUE (ERRSV)) |
|
|
454 | { |
|
|
455 | req_free (req); |
|
|
456 | croak (0); |
|
|
457 | } |
|
|
458 | } |
|
|
459 | |
|
|
460 | static void req_free (aio_req req) |
|
|
461 | { |
|
|
462 | if (req->self) |
|
|
463 | { |
|
|
464 | sv_unmagic (req->self, PERL_MAGIC_ext); |
|
|
465 | SvREFCNT_dec (req->self); |
|
|
466 | } |
|
|
467 | |
|
|
468 | SvREFCNT_dec (req->data); |
|
|
469 | SvREFCNT_dec (req->fh); |
|
|
470 | SvREFCNT_dec (req->fh2); |
|
|
471 | SvREFCNT_dec (req->callback); |
|
|
472 | Safefree (req->statdata); |
|
|
473 | |
|
|
474 | if (req->type == REQ_READDIR) |
|
|
475 | free (req->data2ptr); |
|
|
476 | |
|
|
477 | Safefree (req); |
|
|
478 | } |
|
|
479 | |
|
|
480 | static void req_cancel_subs (aio_req grp) |
|
|
481 | { |
|
|
482 | aio_req sub; |
|
|
483 | |
|
|
484 | if (grp->type != REQ_GROUP) |
|
|
485 | return; |
|
|
486 | |
|
|
487 | SvREFCNT_dec (grp->fh2); |
|
|
488 | grp->fh2 = 0; |
|
|
489 | |
|
|
490 | for (sub = grp->grp_first; sub; sub = sub->grp_next) |
|
|
491 | req_cancel (sub); |
|
|
492 | } |
|
|
493 | |
|
|
494 | static void req_cancel (aio_req req) |
|
|
495 | { |
|
|
496 | req->flags |= FLAG_CANCELLED; |
|
|
497 | |
|
|
498 | req_cancel_subs (req); |
|
|
499 | } |
|
|
500 | |
|
|
501 | static int poll_cb (int max) |
132 | { |
502 | { |
133 | dSP; |
503 | dSP; |
134 | int count = 0; |
504 | int count = 0; |
135 | int do_croak = 0; |
505 | int do_croak = 0; |
136 | aio_req req; |
506 | aio_req req; |
137 | |
507 | |
138 | for (;;) |
508 | while (max <= 0 || count < max) |
139 | { |
509 | { |
140 | pthread_mutex_lock (&reslock); |
510 | LOCK (reslock); |
141 | req = ress; |
511 | req = reqq_shift (&res_queue); |
142 | |
512 | |
143 | if (req) |
513 | if (req) |
144 | { |
514 | { |
145 | ress = req->next; |
|
|
146 | |
|
|
147 | if (!ress) |
515 | if (!res_queue.size) |
148 | { |
516 | { |
149 | /* read any signals sent by the worker threads */ |
517 | /* read any signals sent by the worker threads */ |
150 | char buf [32]; |
518 | char buf [32]; |
151 | while (read (respipe [0], buf, 32) == 32) |
519 | while (read (respipe [0], buf, 32) == 32) |
152 | ; |
520 | ; |
153 | |
|
|
154 | rese = 0; |
|
|
155 | } |
521 | } |
156 | } |
522 | } |
157 | |
523 | |
158 | pthread_mutex_unlock (&reslock); |
524 | UNLOCK (reslock); |
159 | |
525 | |
160 | if (!req) |
526 | if (!req) |
161 | break; |
527 | break; |
162 | |
528 | |
163 | nreqs--; |
529 | --nreqs; |
164 | |
530 | |
165 | if (req->type == REQ_QUIT) |
531 | if (req->type == REQ_QUIT) |
166 | started--; |
532 | started--; |
|
|
533 | else if (req->type == REQ_GROUP && req->length) |
|
|
534 | { |
|
|
535 | req->fd = 1; /* mark request as delayed */ |
|
|
536 | continue; |
|
|
537 | } |
167 | else |
538 | else |
168 | { |
539 | { |
169 | int errorno = errno; |
|
|
170 | errno = req->errorno; |
|
|
171 | |
|
|
172 | if (req->type == REQ_READ) |
540 | if (req->type == REQ_READ) |
173 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
541 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
174 | |
542 | |
175 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
543 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
176 | SvREADONLY_off (req->data); |
544 | SvREADONLY_off (req->data); |
… | |
… | |
180 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
548 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
181 | PL_laststatval = req->result; |
549 | PL_laststatval = req->result; |
182 | PL_statcache = *(req->statdata); |
550 | PL_statcache = *(req->statdata); |
183 | } |
551 | } |
184 | |
552 | |
185 | ENTER; |
553 | req_invoke (req); |
186 | PUSHMARK (SP); |
|
|
187 | |
554 | |
188 | if (req->type == REQ_READDIR) |
|
|
189 | { |
|
|
190 | SV *rv = &PL_sv_undef; |
|
|
191 | |
|
|
192 | if (req->result >= 0) |
|
|
193 | { |
|
|
194 | char *buf = req->data2ptr; |
|
|
195 | AV *av = newAV (); |
|
|
196 | |
|
|
197 | while (req->result) |
|
|
198 | { |
|
|
199 | SV *sv = newSVpv (buf, 0); |
|
|
200 | |
|
|
201 | av_push (av, sv); |
|
|
202 | buf += SvCUR (sv) + 1; |
|
|
203 | req->result--; |
|
|
204 | } |
|
|
205 | |
|
|
206 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
207 | } |
|
|
208 | |
|
|
209 | XPUSHs (rv); |
|
|
210 | } |
|
|
211 | else |
|
|
212 | { |
|
|
213 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
214 | |
|
|
215 | if (req->type == REQ_OPEN) |
|
|
216 | { |
|
|
217 | /* convert fd to fh */ |
|
|
218 | SV *fh; |
|
|
219 | |
|
|
220 | PUTBACK; |
|
|
221 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
222 | SPAGAIN; |
|
|
223 | |
|
|
224 | fh = SvREFCNT_inc (POPs); |
|
|
225 | |
|
|
226 | PUSHMARK (SP); |
|
|
227 | XPUSHs (sv_2mortal (fh)); |
|
|
228 | } |
|
|
229 | } |
|
|
230 | |
|
|
231 | if (SvOK (req->callback)) |
|
|
232 | { |
|
|
233 | PUTBACK; |
|
|
234 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
235 | SPAGAIN; |
|
|
236 | |
|
|
237 | if (SvTRUE (ERRSV)) |
|
|
238 | { |
|
|
239 | free_req (req); |
|
|
240 | croak (0); |
|
|
241 | } |
|
|
242 | } |
|
|
243 | |
|
|
244 | LEAVE; |
|
|
245 | |
|
|
246 | errno = errorno; |
|
|
247 | count++; |
555 | count++; |
248 | } |
556 | } |
249 | |
557 | |
250 | free_req (req); |
558 | req_free (req); |
251 | } |
559 | } |
252 | |
560 | |
253 | return count; |
561 | return count; |
254 | } |
562 | } |
255 | |
563 | |
256 | static void *aio_proc(void *arg); |
564 | static void *aio_proc(void *arg); |
257 | |
565 | |
258 | static void |
|
|
259 | start_thread (void) |
566 | static void start_thread (void) |
260 | { |
567 | { |
261 | sigset_t fullsigset, oldsigset; |
568 | sigset_t fullsigset, oldsigset; |
262 | pthread_t tid; |
|
|
263 | pthread_attr_t attr; |
569 | pthread_attr_t attr; |
|
|
570 | |
|
|
571 | worker *wrk = calloc (1, sizeof (worker)); |
|
|
572 | |
|
|
573 | if (!wrk) |
|
|
574 | croak ("unable to allocate worker thread data"); |
264 | |
575 | |
265 | pthread_attr_init (&attr); |
576 | pthread_attr_init (&attr); |
266 | pthread_attr_setstacksize (&attr, STACKSIZE); |
577 | pthread_attr_setstacksize (&attr, STACKSIZE); |
267 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
578 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
268 | |
579 | |
269 | sigfillset (&fullsigset); |
580 | sigfillset (&fullsigset); |
|
|
581 | |
|
|
582 | LOCK (wrklock); |
270 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
583 | sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); |
271 | |
584 | |
272 | if (pthread_create (&tid, &attr, aio_proc, 0) == 0) |
585 | if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) |
|
|
586 | { |
|
|
587 | wrk->prev = &wrk_first; |
|
|
588 | wrk->next = wrk_first.next; |
|
|
589 | wrk_first.next->prev = wrk; |
|
|
590 | wrk_first.next = wrk; |
273 | started++; |
591 | started++; |
|
|
592 | } |
|
|
593 | else |
|
|
594 | free (wrk); |
274 | |
595 | |
275 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
596 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
|
|
597 | UNLOCK (wrklock); |
276 | } |
598 | } |
277 | |
599 | |
278 | static void |
600 | static void req_send (aio_req req) |
279 | send_req (aio_req req) |
|
|
280 | { |
601 | { |
281 | while (started < wanted && nreqs >= started) |
602 | while (started < wanted && nreqs >= started) |
282 | start_thread (); |
603 | start_thread (); |
283 | |
604 | |
284 | nreqs++; |
605 | ++nreqs; |
285 | |
606 | |
286 | pthread_mutex_lock (&reqlock); |
607 | LOCK (reqlock); |
287 | |
608 | reqq_push (&req_queue, req); |
288 | req->next = 0; |
|
|
289 | |
|
|
290 | if (reqe) |
|
|
291 | { |
|
|
292 | reqe->next = req; |
|
|
293 | reqe = req; |
|
|
294 | } |
|
|
295 | else |
|
|
296 | reqe = reqs = req; |
|
|
297 | |
|
|
298 | pthread_cond_signal (&reqwait); |
609 | pthread_cond_signal (&reqwait); |
299 | pthread_mutex_unlock (&reqlock); |
610 | UNLOCK (reqlock); |
300 | |
|
|
301 | if (nreqs > max_outstanding) |
|
|
302 | for (;;) |
|
|
303 | { |
|
|
304 | poll_cb (); |
|
|
305 | |
|
|
306 | if (nreqs <= max_outstanding) |
|
|
307 | break; |
|
|
308 | |
|
|
309 | poll_wait (); |
|
|
310 | } |
|
|
311 | } |
611 | } |
312 | |
612 | |
313 | static void |
613 | static void end_thread (void) |
314 | end_thread (void) |
|
|
315 | { |
614 | { |
316 | aio_req req; |
615 | aio_req req; |
|
|
616 | |
317 | Newz (0, req, 1, aio_cb); |
617 | Newz (0, req, 1, aio_cb); |
|
|
618 | |
318 | req->type = REQ_QUIT; |
619 | req->type = REQ_QUIT; |
|
|
620 | req->pri = PRI_MAX + PRI_BIAS; |
319 | |
621 | |
320 | send_req (req); |
622 | req_send (req); |
321 | } |
623 | } |
322 | |
624 | |
323 | static void min_parallel (int nthreads) |
625 | static void min_parallel (int nthreads) |
324 | { |
626 | { |
325 | if (wanted < nthreads) |
627 | if (wanted < nthreads) |
… | |
… | |
340 | } |
642 | } |
341 | |
643 | |
342 | while (started > wanted) |
644 | while (started > wanted) |
343 | { |
645 | { |
344 | poll_wait (); |
646 | poll_wait (); |
345 | poll_cb (); |
647 | poll_cb (0); |
346 | } |
648 | } |
347 | } |
649 | } |
348 | |
650 | |
349 | static void create_pipe () |
651 | static void create_pipe () |
350 | { |
652 | { |
… | |
… | |
370 | * normal read/write by using a mutex. slows down execution a lot, |
672 | * normal read/write by using a mutex. slows down execution a lot, |
371 | * but that's your problem, not mine. |
673 | * but that's your problem, not mine. |
372 | */ |
674 | */ |
373 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
675 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
374 | |
676 | |
375 | static ssize_t |
677 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
376 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
377 | { |
678 | { |
378 | ssize_t res; |
679 | ssize_t res; |
379 | off_t ooffset; |
680 | off_t ooffset; |
380 | |
681 | |
381 | pthread_mutex_lock (&preadwritelock); |
682 | LOCK (preadwritelock); |
382 | ooffset = lseek (fd, 0, SEEK_CUR); |
683 | ooffset = lseek (fd, 0, SEEK_CUR); |
383 | lseek (fd, offset, SEEK_SET); |
684 | lseek (fd, offset, SEEK_SET); |
384 | res = read (fd, buf, count); |
685 | res = read (fd, buf, count); |
385 | lseek (fd, ooffset, SEEK_SET); |
686 | lseek (fd, ooffset, SEEK_SET); |
386 | pthread_mutex_unlock (&preadwritelock); |
687 | UNLOCK (preadwritelock); |
387 | |
688 | |
388 | return res; |
689 | return res; |
389 | } |
690 | } |
390 | |
691 | |
391 | static ssize_t |
|
|
392 | pwrite (int fd, void *buf, size_t count, off_t offset) |
692 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
393 | { |
693 | { |
394 | ssize_t res; |
694 | ssize_t res; |
395 | off_t ooffset; |
695 | off_t ooffset; |
396 | |
696 | |
397 | pthread_mutex_lock (&preadwritelock); |
697 | LOCK (preadwritelock); |
398 | ooffset = lseek (fd, 0, SEEK_CUR); |
698 | ooffset = lseek (fd, 0, SEEK_CUR); |
399 | lseek (fd, offset, SEEK_SET); |
699 | lseek (fd, offset, SEEK_SET); |
400 | res = write (fd, buf, count); |
700 | res = write (fd, buf, count); |
401 | lseek (fd, offset, SEEK_SET); |
701 | lseek (fd, offset, SEEK_SET); |
402 | pthread_mutex_unlock (&preadwritelock); |
702 | UNLOCK (preadwritelock); |
403 | |
703 | |
404 | return res; |
704 | return res; |
405 | } |
705 | } |
406 | #endif |
706 | #endif |
407 | |
707 | |
408 | #if !HAVE_FDATASYNC |
708 | #if !HAVE_FDATASYNC |
409 | # define fdatasync fsync |
709 | # define fdatasync fsync |
410 | #endif |
710 | #endif |
411 | |
711 | |
412 | #if !HAVE_READAHEAD |
712 | #if !HAVE_READAHEAD |
413 | # define readahead aio_readahead |
713 | # define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) |
414 | |
714 | |
415 | static ssize_t |
715 | static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) |
416 | readahead (int fd, off_t offset, size_t count) |
|
|
417 | { |
716 | { |
418 | char readahead_buf[4096]; |
717 | dBUF; |
419 | |
718 | |
420 | while (count > 0) |
719 | while (count > 0) |
421 | { |
720 | { |
422 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
721 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
423 | |
722 | |
424 | pread (fd, readahead_buf, len, offset); |
723 | pread (fd, aio_buf, len, offset); |
425 | offset += len; |
724 | offset += len; |
426 | count -= len; |
725 | count -= len; |
427 | } |
726 | } |
428 | |
727 | |
429 | errno = 0; |
728 | errno = 0; |
430 | } |
729 | } |
|
|
730 | |
431 | #endif |
731 | #endif |
432 | |
732 | |
433 | #if !HAVE_READDIR_R |
733 | #if !HAVE_READDIR_R |
434 | # define readdir_r aio_readdir_r |
734 | # define readdir_r aio_readdir_r |
435 | |
735 | |
436 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
736 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
437 | |
737 | |
438 | static int |
|
|
439 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
738 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
440 | { |
739 | { |
441 | struct dirent *e; |
740 | struct dirent *e; |
442 | int errorno; |
741 | int errorno; |
443 | |
742 | |
444 | pthread_mutex_lock (&readdirlock); |
743 | LOCK (readdirlock); |
445 | |
744 | |
446 | e = readdir (dirp); |
745 | e = readdir (dirp); |
447 | errorno = errno; |
746 | errorno = errno; |
448 | |
747 | |
449 | if (e) |
748 | if (e) |
… | |
… | |
452 | strcpy (ent->d_name, e->d_name); |
751 | strcpy (ent->d_name, e->d_name); |
453 | } |
752 | } |
454 | else |
753 | else |
455 | *res = 0; |
754 | *res = 0; |
456 | |
755 | |
457 | pthread_mutex_unlock (&readdirlock); |
756 | UNLOCK (readdirlock); |
458 | |
757 | |
459 | errno = errorno; |
758 | errno = errorno; |
460 | return e ? 0 : -1; |
759 | return e ? 0 : -1; |
461 | } |
760 | } |
462 | #endif |
761 | #endif |
463 | |
762 | |
464 | /* sendfile always needs emulation */ |
763 | /* sendfile always needs emulation */ |
465 | static ssize_t |
|
|
466 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
764 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) |
467 | { |
765 | { |
468 | ssize_t res; |
766 | ssize_t res; |
469 | |
767 | |
470 | if (!count) |
768 | if (!count) |
471 | return 0; |
769 | return 0; |
… | |
… | |
482 | { |
780 | { |
483 | off_t sbytes; |
781 | off_t sbytes; |
484 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
782 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
485 | |
783 | |
486 | if (res < 0 && sbytes) |
784 | if (res < 0 && sbytes) |
487 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
785 | /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ |
488 | res = sbytes; |
786 | res = sbytes; |
489 | } |
787 | } |
490 | |
788 | |
491 | # elif __hpux |
789 | # elif __hpux |
492 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
790 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
… | |
… | |
520 | #endif |
818 | #endif |
521 | ) |
819 | ) |
522 | ) |
820 | ) |
523 | { |
821 | { |
524 | /* emulate sendfile. this is a major pain in the ass */ |
822 | /* emulate sendfile. this is a major pain in the ass */ |
525 | char buf[4096]; |
823 | dBUF; |
|
|
824 | |
526 | res = 0; |
825 | res = 0; |
527 | |
826 | |
528 | while (count) |
827 | while (count) |
529 | { |
828 | { |
530 | ssize_t cnt; |
829 | ssize_t cnt; |
531 | |
830 | |
532 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
831 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
533 | |
832 | |
534 | if (cnt <= 0) |
833 | if (cnt <= 0) |
535 | { |
834 | { |
536 | if (cnt && !res) res = -1; |
835 | if (cnt && !res) res = -1; |
537 | break; |
836 | break; |
538 | } |
837 | } |
539 | |
838 | |
540 | cnt = write (ofd, buf, cnt); |
839 | cnt = write (ofd, aio_buf, cnt); |
541 | |
840 | |
542 | if (cnt <= 0) |
841 | if (cnt <= 0) |
543 | { |
842 | { |
544 | if (cnt && !res) res = -1; |
843 | if (cnt && !res) res = -1; |
545 | break; |
844 | break; |
… | |
… | |
553 | |
852 | |
554 | return res; |
853 | return res; |
555 | } |
854 | } |
556 | |
855 | |
557 | /* read a full directory */ |
856 | /* read a full directory */ |
558 | static int |
857 | static void scandir_ (aio_req req, worker *self) |
559 | scandir_ (const char *path, void **namesp) |
|
|
560 | { |
858 | { |
561 | DIR *dirp = opendir (path); |
859 | DIR *dirp; |
562 | union |
860 | union |
563 | { |
861 | { |
564 | struct dirent d; |
862 | struct dirent d; |
565 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
863 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
566 | } u; |
864 | } *u; |
567 | struct dirent *entp; |
865 | struct dirent *entp; |
568 | char *name, *names; |
866 | char *name, *names; |
569 | int memlen = 4096; |
867 | int memlen = 4096; |
570 | int memofs = 0; |
868 | int memofs = 0; |
571 | int res = 0; |
869 | int res = 0; |
572 | int errorno; |
870 | int errorno; |
573 | |
871 | |
574 | if (!dirp) |
872 | LOCK (wrklock); |
575 | return -1; |
873 | self->dirp = dirp = opendir (req->dataptr); |
576 | |
874 | self->dbuf = u = malloc (sizeof (*u)); |
577 | names = malloc (memlen); |
875 | req->data2ptr = names = malloc (memlen); |
|
|
876 | UNLOCK (wrklock); |
578 | |
877 | |
|
|
878 | if (dirp && u && names) |
579 | for (;;) |
879 | for (;;) |
580 | { |
880 | { |
|
|
881 | errno = 0; |
581 | errno = 0, readdir_r (dirp, &u.d, &entp); |
882 | readdir_r (dirp, &u->d, &entp); |
582 | |
883 | |
583 | if (!entp) |
884 | if (!entp) |
584 | break; |
885 | break; |
585 | |
886 | |
586 | name = entp->d_name; |
887 | name = entp->d_name; |
587 | |
888 | |
588 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
889 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
589 | { |
890 | { |
590 | int len = strlen (name) + 1; |
891 | int len = strlen (name) + 1; |
591 | |
892 | |
592 | res++; |
893 | res++; |
593 | |
894 | |
594 | while (memofs + len > memlen) |
895 | while (memofs + len > memlen) |
595 | { |
896 | { |
596 | memlen *= 2; |
897 | memlen *= 2; |
|
|
898 | LOCK (wrklock); |
597 | names = realloc (names, memlen); |
899 | req->data2ptr = names = realloc (names, memlen); |
|
|
900 | UNLOCK (wrklock); |
|
|
901 | |
598 | if (!names) |
902 | if (!names) |
599 | break; |
903 | break; |
600 | } |
904 | } |
601 | |
905 | |
602 | memcpy (names + memofs, name, len); |
906 | memcpy (names + memofs, name, len); |
603 | memofs += len; |
907 | memofs += len; |
604 | } |
908 | } |
605 | } |
909 | } |
606 | |
910 | |
607 | errorno = errno; |
|
|
608 | closedir (dirp); |
|
|
609 | |
|
|
610 | if (errorno) |
911 | if (errno) |
611 | { |
|
|
612 | free (names); |
|
|
613 | errno = errorno; |
|
|
614 | res = -1; |
912 | res = -1; |
615 | } |
913 | |
616 | |
914 | req->result = res; |
617 | *namesp = (void *)names; |
|
|
618 | return res; |
|
|
619 | } |
915 | } |
620 | |
916 | |
621 | /*****************************************************************************/ |
917 | /*****************************************************************************/ |
622 | |
918 | |
623 | static void * |
|
|
624 | aio_proc (void *thr_arg) |
919 | static void *aio_proc (void *thr_arg) |
625 | { |
920 | { |
626 | aio_req req; |
921 | aio_req req; |
627 | int type; |
922 | int type; |
|
|
923 | worker *self = (worker *)thr_arg; |
628 | |
924 | |
629 | do |
925 | do |
630 | { |
926 | { |
631 | pthread_mutex_lock (&reqlock); |
927 | LOCK (reqlock); |
632 | |
928 | |
633 | for (;;) |
929 | for (;;) |
634 | { |
930 | { |
635 | req = reqs; |
931 | self->req = req = reqq_shift (&req_queue); |
636 | |
|
|
637 | if (reqs) |
|
|
638 | { |
|
|
639 | reqs = reqs->next; |
|
|
640 | if (!reqs) reqe = 0; |
|
|
641 | } |
|
|
642 | |
932 | |
643 | if (req) |
933 | if (req) |
644 | break; |
934 | break; |
645 | |
935 | |
646 | pthread_cond_wait (&reqwait, &reqlock); |
936 | pthread_cond_wait (&reqwait, &reqlock); |
647 | } |
937 | } |
648 | |
938 | |
649 | pthread_mutex_unlock (&reqlock); |
939 | UNLOCK (reqlock); |
650 | |
940 | |
651 | errno = 0; /* strictly unnecessary */ |
941 | errno = 0; /* strictly unnecessary */ |
|
|
942 | type = req->type; /* remember type for QUIT check */ |
652 | |
943 | |
653 | type = req->type; |
944 | if (!(req->flags & FLAG_CANCELLED)) |
654 | |
|
|
655 | switch (type) |
945 | switch (type) |
656 | { |
946 | { |
657 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
947 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
658 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
948 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
659 | |
949 | |
660 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
950 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
661 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
951 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; |
662 | |
952 | |
663 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
953 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
664 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
954 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
665 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
955 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
666 | |
956 | |
667 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
957 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
668 | case REQ_CLOSE: req->result = close (req->fd); break; |
958 | case REQ_CLOSE: req->result = close (req->fd); break; |
669 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
959 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
670 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
960 | case REQ_RMDIR: req->result = rmdir (req->dataptr); break; |
671 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
961 | case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; |
672 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
962 | case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; |
673 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
963 | case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; |
674 | |
964 | |
675 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
965 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
676 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
966 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
677 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
967 | case REQ_READDIR: scandir_ (req, self); break; |
678 | |
968 | |
|
|
969 | case REQ_BUSY: |
|
|
970 | { |
|
|
971 | struct timeval tv; |
|
|
972 | |
|
|
973 | tv.tv_sec = req->fd; |
|
|
974 | tv.tv_usec = req->fd2; |
|
|
975 | |
|
|
976 | req->result = select (0, 0, 0, 0, &tv); |
|
|
977 | } |
|
|
978 | |
|
|
979 | case REQ_GROUP: |
|
|
980 | case REQ_NOP: |
679 | case REQ_QUIT: |
981 | case REQ_QUIT: |
680 | break; |
982 | break; |
681 | |
983 | |
682 | default: |
984 | default: |
683 | req->result = ENOSYS; |
985 | req->result = ENOSYS; |
684 | break; |
986 | break; |
685 | } |
987 | } |
686 | |
988 | |
687 | req->errorno = errno; |
989 | req->errorno = errno; |
688 | |
990 | |
689 | pthread_mutex_lock (&reslock); |
991 | LOCK (reslock); |
690 | |
992 | |
691 | req->next = 0; |
993 | if (!reqq_push (&res_queue, req)) |
692 | |
|
|
693 | if (rese) |
|
|
694 | { |
|
|
695 | rese->next = req; |
|
|
696 | rese = req; |
|
|
697 | } |
|
|
698 | else |
|
|
699 | { |
|
|
700 | rese = ress = req; |
|
|
701 | |
|
|
702 | /* write a dummy byte to the pipe so fh becomes ready */ |
994 | /* write a dummy byte to the pipe so fh becomes ready */ |
703 | write (respipe [1], &respipe, 1); |
995 | write (respipe [1], &respipe, 1); |
704 | } |
|
|
705 | |
996 | |
706 | pthread_mutex_unlock (&reslock); |
997 | self->req = 0; |
|
|
998 | worker_clear (self); |
|
|
999 | |
|
|
1000 | UNLOCK (reslock); |
707 | } |
1001 | } |
708 | while (type != REQ_QUIT); |
1002 | while (type != REQ_QUIT); |
709 | |
1003 | |
|
|
1004 | LOCK (wrklock); |
|
|
1005 | worker_free (self); |
|
|
1006 | UNLOCK (wrklock); |
|
|
1007 | |
710 | return 0; |
1008 | return 0; |
711 | } |
1009 | } |
712 | |
1010 | |
713 | /*****************************************************************************/ |
1011 | /*****************************************************************************/ |
714 | |
1012 | |
715 | static void atfork_prepare (void) |
1013 | static void atfork_prepare (void) |
716 | { |
1014 | { |
717 | pthread_mutex_lock (&reqlock); |
1015 | LOCK (wrklock); |
718 | pthread_mutex_lock (&reslock); |
1016 | LOCK (reqlock); |
|
|
1017 | LOCK (reslock); |
719 | #if !HAVE_PREADWRITE |
1018 | #if !HAVE_PREADWRITE |
720 | pthread_mutex_lock (&preadwritelock); |
1019 | LOCK (preadwritelock); |
721 | #endif |
1020 | #endif |
722 | #if !HAVE_READDIR_R |
1021 | #if !HAVE_READDIR_R |
723 | pthread_mutex_lock (&readdirlock); |
1022 | LOCK (readdirlock); |
724 | #endif |
1023 | #endif |
725 | } |
1024 | } |
726 | |
1025 | |
727 | static void atfork_parent (void) |
1026 | static void atfork_parent (void) |
728 | { |
1027 | { |
729 | #if !HAVE_READDIR_R |
1028 | #if !HAVE_READDIR_R |
730 | pthread_mutex_unlock (&readdirlock); |
1029 | UNLOCK (readdirlock); |
731 | #endif |
1030 | #endif |
732 | #if !HAVE_PREADWRITE |
1031 | #if !HAVE_PREADWRITE |
733 | pthread_mutex_unlock (&preadwritelock); |
1032 | UNLOCK (preadwritelock); |
734 | #endif |
1033 | #endif |
735 | pthread_mutex_unlock (&reslock); |
1034 | UNLOCK (reslock); |
736 | pthread_mutex_unlock (&reqlock); |
1035 | UNLOCK (reqlock); |
|
|
1036 | UNLOCK (wrklock); |
737 | } |
1037 | } |
738 | |
1038 | |
739 | static void atfork_child (void) |
1039 | static void atfork_child (void) |
740 | { |
1040 | { |
741 | aio_req prv; |
1041 | aio_req prv; |
742 | |
1042 | |
|
|
1043 | while (prv = reqq_shift (&req_queue)) |
|
|
1044 | req_free (prv); |
|
|
1045 | |
|
|
1046 | while (prv = reqq_shift (&res_queue)) |
|
|
1047 | req_free (prv); |
|
|
1048 | |
|
|
1049 | while (wrk_first.next != &wrk_first) |
|
|
1050 | { |
|
|
1051 | worker *wrk = wrk_first.next; |
|
|
1052 | |
|
|
1053 | if (wrk->req) |
|
|
1054 | req_free (wrk->req); |
|
|
1055 | |
|
|
1056 | worker_clear (wrk); |
|
|
1057 | worker_free (wrk); |
|
|
1058 | } |
|
|
1059 | |
743 | started = 0; |
1060 | started = 0; |
744 | |
1061 | nreqs = 0; |
745 | while (reqs) |
|
|
746 | { |
|
|
747 | prv = reqs; |
|
|
748 | reqs = prv->next; |
|
|
749 | free_req (prv); |
|
|
750 | } |
|
|
751 | |
|
|
752 | reqs = reqe = 0; |
|
|
753 | |
|
|
754 | while (ress) |
|
|
755 | { |
|
|
756 | prv = ress; |
|
|
757 | ress = prv->next; |
|
|
758 | free_req (prv); |
|
|
759 | } |
|
|
760 | |
|
|
761 | ress = rese = 0; |
|
|
762 | |
1062 | |
763 | close (respipe [0]); |
1063 | close (respipe [0]); |
764 | close (respipe [1]); |
1064 | close (respipe [1]); |
765 | create_pipe (); |
1065 | create_pipe (); |
766 | |
1066 | |
767 | atfork_parent (); |
1067 | atfork_parent (); |
768 | } |
1068 | } |
769 | |
1069 | |
770 | #define dREQ \ |
1070 | #define dREQ \ |
771 | aio_req req; \ |
1071 | aio_req req; \ |
|
|
1072 | int req_pri = next_pri; \ |
|
|
1073 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
772 | \ |
1074 | \ |
773 | if (SvOK (callback) && !SvROK (callback)) \ |
1075 | if (SvOK (callback) && !SvROK (callback)) \ |
774 | croak ("clalback must be undef or of reference type"); \ |
1076 | croak ("callback must be undef or of reference type"); \ |
775 | \ |
1077 | \ |
776 | Newz (0, req, 1, aio_cb); \ |
1078 | Newz (0, req, 1, aio_cb); \ |
777 | if (!req) \ |
1079 | if (!req) \ |
778 | croak ("out of memory during aio_req allocation"); \ |
1080 | croak ("out of memory during aio_req allocation"); \ |
779 | \ |
1081 | \ |
780 | req->callback = newSVsv (callback); |
1082 | req->callback = newSVsv (callback); \ |
|
|
1083 | req->pri = req_pri |
|
|
1084 | |
|
|
1085 | #define REQ_SEND \ |
|
|
1086 | req_send (req); \ |
|
|
1087 | \ |
|
|
1088 | if (GIMME_V != G_VOID) \ |
|
|
1089 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
781 | |
1090 | |
782 | MODULE = IO::AIO PACKAGE = IO::AIO |
1091 | MODULE = IO::AIO PACKAGE = IO::AIO |
783 | |
1092 | |
784 | PROTOTYPES: ENABLE |
1093 | PROTOTYPES: ENABLE |
785 | |
1094 | |
… | |
… | |
801 | |
1110 | |
802 | void |
1111 | void |
803 | max_parallel (nthreads) |
1112 | max_parallel (nthreads) |
804 | int nthreads |
1113 | int nthreads |
805 | PROTOTYPE: $ |
1114 | PROTOTYPE: $ |
806 | |
|
|
807 | int |
|
|
808 | max_outstanding (nreqs) |
|
|
809 | int nreqs |
|
|
810 | PROTOTYPE: $ |
|
|
811 | CODE: |
|
|
812 | RETVAL = max_outstanding; |
|
|
813 | max_outstanding = nreqs; |
|
|
814 | |
1115 | |
815 | void |
1116 | void |
816 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
1117 | aio_open (pathname,flags,mode,callback=&PL_sv_undef) |
817 | SV * pathname |
1118 | SV * pathname |
818 | int flags |
1119 | int flags |
819 | int mode |
1120 | int mode |
820 | SV * callback |
1121 | SV * callback |
821 | PROTOTYPE: $$$;$ |
1122 | PROTOTYPE: $$$;$ |
822 | CODE: |
1123 | PPCODE: |
823 | { |
1124 | { |
824 | dREQ; |
1125 | dREQ; |
825 | |
1126 | |
826 | req->type = REQ_OPEN; |
1127 | req->type = REQ_OPEN; |
827 | req->data = newSVsv (pathname); |
1128 | req->data = newSVsv (pathname); |
828 | req->dataptr = SvPVbyte_nolen (req->data); |
1129 | req->dataptr = SvPVbyte_nolen (req->data); |
829 | req->fd = flags; |
1130 | req->fd = flags; |
830 | req->mode = mode; |
1131 | req->mode = mode; |
831 | |
1132 | |
832 | send_req (req); |
1133 | REQ_SEND; |
833 | } |
1134 | } |
834 | |
1135 | |
835 | void |
1136 | void |
836 | aio_close (fh,callback=&PL_sv_undef) |
1137 | aio_close (fh,callback=&PL_sv_undef) |
837 | SV * fh |
1138 | SV * fh |
… | |
… | |
839 | PROTOTYPE: $;$ |
1140 | PROTOTYPE: $;$ |
840 | ALIAS: |
1141 | ALIAS: |
841 | aio_close = REQ_CLOSE |
1142 | aio_close = REQ_CLOSE |
842 | aio_fsync = REQ_FSYNC |
1143 | aio_fsync = REQ_FSYNC |
843 | aio_fdatasync = REQ_FDATASYNC |
1144 | aio_fdatasync = REQ_FDATASYNC |
844 | CODE: |
1145 | PPCODE: |
845 | { |
1146 | { |
846 | dREQ; |
1147 | dREQ; |
847 | |
1148 | |
848 | req->type = ix; |
1149 | req->type = ix; |
849 | req->fh = newSVsv (fh); |
1150 | req->fh = newSVsv (fh); |
850 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1151 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
851 | |
1152 | |
852 | send_req (req); |
1153 | REQ_SEND (req); |
853 | } |
1154 | } |
854 | |
1155 | |
855 | void |
1156 | void |
856 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
1157 | aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
857 | SV * fh |
1158 | SV * fh |
… | |
… | |
862 | SV * callback |
1163 | SV * callback |
863 | ALIAS: |
1164 | ALIAS: |
864 | aio_read = REQ_READ |
1165 | aio_read = REQ_READ |
865 | aio_write = REQ_WRITE |
1166 | aio_write = REQ_WRITE |
866 | PROTOTYPE: $$$$$;$ |
1167 | PROTOTYPE: $$$$$;$ |
867 | CODE: |
1168 | PPCODE: |
868 | { |
1169 | { |
869 | aio_req req; |
1170 | aio_req req; |
870 | STRLEN svlen; |
1171 | STRLEN svlen; |
871 | char *svptr = SvPVbyte (data, svlen); |
1172 | char *svptr = SvPVbyte (data, svlen); |
872 | |
1173 | |
… | |
… | |
910 | { |
1211 | { |
911 | SvREADONLY_on (data); |
1212 | SvREADONLY_on (data); |
912 | req->data2ptr = (void *)data; |
1213 | req->data2ptr = (void *)data; |
913 | } |
1214 | } |
914 | |
1215 | |
915 | send_req (req); |
1216 | REQ_SEND; |
916 | } |
1217 | } |
917 | } |
1218 | } |
918 | |
1219 | |
919 | void |
1220 | void |
920 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
1221 | aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
… | |
… | |
922 | SV * in_fh |
1223 | SV * in_fh |
923 | UV in_offset |
1224 | UV in_offset |
924 | UV length |
1225 | UV length |
925 | SV * callback |
1226 | SV * callback |
926 | PROTOTYPE: $$$$;$ |
1227 | PROTOTYPE: $$$$;$ |
927 | CODE: |
1228 | PPCODE: |
928 | { |
1229 | { |
929 | dREQ; |
1230 | dREQ; |
930 | |
1231 | |
931 | req->type = REQ_SENDFILE; |
1232 | req->type = REQ_SENDFILE; |
932 | req->fh = newSVsv (out_fh); |
1233 | req->fh = newSVsv (out_fh); |
… | |
… | |
934 | req->fh2 = newSVsv (in_fh); |
1235 | req->fh2 = newSVsv (in_fh); |
935 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
1236 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
936 | req->offset = in_offset; |
1237 | req->offset = in_offset; |
937 | req->length = length; |
1238 | req->length = length; |
938 | |
1239 | |
939 | send_req (req); |
1240 | REQ_SEND; |
940 | } |
1241 | } |
941 | |
1242 | |
942 | void |
1243 | void |
943 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
1244 | aio_readahead (fh,offset,length,callback=&PL_sv_undef) |
944 | SV * fh |
1245 | SV * fh |
945 | UV offset |
1246 | UV offset |
946 | IV length |
1247 | IV length |
947 | SV * callback |
1248 | SV * callback |
948 | PROTOTYPE: $$$;$ |
1249 | PROTOTYPE: $$$;$ |
949 | CODE: |
1250 | PPCODE: |
950 | { |
1251 | { |
951 | dREQ; |
1252 | dREQ; |
952 | |
1253 | |
953 | req->type = REQ_READAHEAD; |
1254 | req->type = REQ_READAHEAD; |
954 | req->fh = newSVsv (fh); |
1255 | req->fh = newSVsv (fh); |
955 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
1256 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
956 | req->offset = offset; |
1257 | req->offset = offset; |
957 | req->length = length; |
1258 | req->length = length; |
958 | |
1259 | |
959 | send_req (req); |
1260 | REQ_SEND; |
960 | } |
1261 | } |
961 | |
1262 | |
962 | void |
1263 | void |
963 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
1264 | aio_stat (fh_or_path,callback=&PL_sv_undef) |
964 | SV * fh_or_path |
1265 | SV * fh_or_path |
965 | SV * callback |
1266 | SV * callback |
966 | ALIAS: |
1267 | ALIAS: |
967 | aio_stat = REQ_STAT |
1268 | aio_stat = REQ_STAT |
968 | aio_lstat = REQ_LSTAT |
1269 | aio_lstat = REQ_LSTAT |
969 | CODE: |
1270 | PPCODE: |
970 | { |
1271 | { |
971 | dREQ; |
1272 | dREQ; |
972 | |
1273 | |
973 | New (0, req->statdata, 1, Stat_t); |
1274 | New (0, req->statdata, 1, Stat_t); |
974 | if (!req->statdata) |
1275 | if (!req->statdata) |
975 | { |
1276 | { |
976 | free_req (req); |
1277 | req_free (req); |
977 | croak ("out of memory during aio_req->statdata allocation"); |
1278 | croak ("out of memory during aio_req->statdata allocation"); |
978 | } |
1279 | } |
979 | |
1280 | |
980 | if (SvPOK (fh_or_path)) |
1281 | if (SvPOK (fh_or_path)) |
981 | { |
1282 | { |
… | |
… | |
988 | req->type = REQ_FSTAT; |
1289 | req->type = REQ_FSTAT; |
989 | req->fh = newSVsv (fh_or_path); |
1290 | req->fh = newSVsv (fh_or_path); |
990 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1291 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
991 | } |
1292 | } |
992 | |
1293 | |
993 | send_req (req); |
1294 | REQ_SEND; |
994 | } |
1295 | } |
995 | |
1296 | |
996 | void |
1297 | void |
997 | aio_unlink (pathname,callback=&PL_sv_undef) |
1298 | aio_unlink (pathname,callback=&PL_sv_undef) |
998 | SV * pathname |
1299 | SV * pathname |
999 | SV * callback |
1300 | SV * callback |
1000 | ALIAS: |
1301 | ALIAS: |
1001 | aio_unlink = REQ_UNLINK |
1302 | aio_unlink = REQ_UNLINK |
1002 | aio_rmdir = REQ_RMDIR |
1303 | aio_rmdir = REQ_RMDIR |
1003 | aio_readdir = REQ_READDIR |
1304 | aio_readdir = REQ_READDIR |
1004 | CODE: |
1305 | PPCODE: |
1005 | { |
1306 | { |
1006 | dREQ; |
1307 | dREQ; |
1007 | |
1308 | |
1008 | req->type = ix; |
1309 | req->type = ix; |
1009 | req->data = newSVsv (pathname); |
1310 | req->data = newSVsv (pathname); |
1010 | req->dataptr = SvPVbyte_nolen (req->data); |
1311 | req->dataptr = SvPVbyte_nolen (req->data); |
1011 | |
1312 | |
1012 | send_req (req); |
1313 | REQ_SEND; |
1013 | } |
1314 | } |
1014 | |
1315 | |
1015 | void |
1316 | void |
1016 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1317 | aio_link (oldpath,newpath,callback=&PL_sv_undef) |
1017 | SV * oldpath |
1318 | SV * oldpath |
… | |
… | |
1019 | SV * callback |
1320 | SV * callback |
1020 | ALIAS: |
1321 | ALIAS: |
1021 | aio_link = REQ_LINK |
1322 | aio_link = REQ_LINK |
1022 | aio_symlink = REQ_SYMLINK |
1323 | aio_symlink = REQ_SYMLINK |
1023 | aio_rename = REQ_RENAME |
1324 | aio_rename = REQ_RENAME |
1024 | CODE: |
1325 | PPCODE: |
1025 | { |
1326 | { |
1026 | dREQ; |
1327 | dREQ; |
1027 | |
1328 | |
1028 | req->type = ix; |
1329 | req->type = ix; |
1029 | req->fh = newSVsv (oldpath); |
1330 | req->fh = newSVsv (oldpath); |
1030 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1331 | req->data2ptr = SvPVbyte_nolen (req->fh); |
1031 | req->data = newSVsv (newpath); |
1332 | req->data = newSVsv (newpath); |
1032 | req->dataptr = SvPVbyte_nolen (req->data); |
1333 | req->dataptr = SvPVbyte_nolen (req->data); |
1033 | |
1334 | |
1034 | send_req (req); |
1335 | REQ_SEND; |
1035 | } |
1336 | } |
1036 | |
1337 | |
1037 | #if 0 |
|
|
1038 | |
|
|
1039 | # undocumented, because it does not cancel active requests |
|
|
1040 | void |
1338 | void |
1041 | cancel_most_requests () |
1339 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1340 | double delay |
|
|
1341 | SV * callback |
|
|
1342 | PPCODE: |
|
|
1343 | { |
|
|
1344 | dREQ; |
|
|
1345 | |
|
|
1346 | req->type = REQ_BUSY; |
|
|
1347 | req->fd = delay < 0. ? 0 : delay; |
|
|
1348 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1349 | |
|
|
1350 | REQ_SEND; |
|
|
1351 | } |
|
|
1352 | |
|
|
1353 | void |
|
|
1354 | aio_group (callback=&PL_sv_undef) |
|
|
1355 | SV * callback |
1042 | PROTOTYPE: |
1356 | PROTOTYPE: ;$ |
1043 | CODE: |
1357 | PPCODE: |
1044 | { |
1358 | { |
1045 | aio_req *req; |
1359 | dREQ; |
1046 | |
1360 | |
1047 | pthread_mutex_lock (&reqlock); |
1361 | req->type = REQ_GROUP; |
1048 | for (req = reqs; req; req = req->next) |
1362 | req_send (req); |
1049 | req->flags |= 1; |
|
|
1050 | pthread_mutex_unlock (&reqlock); |
|
|
1051 | |
1363 | |
1052 | pthread_mutex_lock (&reslock); |
1364 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1053 | for (req = ress; req; req = req->next) |
|
|
1054 | req->flags |= 1; |
|
|
1055 | pthread_mutex_unlock (&reslock); |
|
|
1056 | } |
1365 | } |
1057 | |
1366 | |
1058 | #endif |
1367 | void |
|
|
1368 | aio_nop (callback=&PL_sv_undef) |
|
|
1369 | SV * callback |
|
|
1370 | PPCODE: |
|
|
1371 | { |
|
|
1372 | dREQ; |
|
|
1373 | |
|
|
1374 | req->type = REQ_NOP; |
|
|
1375 | |
|
|
1376 | REQ_SEND; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | void |
|
|
1380 | aioreq_pri (int pri = DEFAULT_PRI) |
|
|
1381 | CODE: |
|
|
1382 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1383 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1384 | next_pri = pri + PRI_BIAS; |
|
|
1385 | |
|
|
1386 | void |
|
|
1387 | aioreq_nice (int nice = 0) |
|
|
1388 | CODE: |
|
|
1389 | nice = next_pri - nice; |
|
|
1390 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1391 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1392 | next_pri = nice + PRI_BIAS; |
1059 | |
1393 | |
1060 | void |
1394 | void |
1061 | flush () |
1395 | flush () |
1062 | PROTOTYPE: |
1396 | PROTOTYPE: |
1063 | CODE: |
1397 | CODE: |
1064 | while (nreqs) |
1398 | while (nreqs) |
1065 | { |
1399 | { |
1066 | poll_wait (); |
1400 | poll_wait (); |
1067 | poll_cb (); |
1401 | poll_cb (0); |
1068 | } |
1402 | } |
1069 | |
1403 | |
1070 | void |
1404 | void |
1071 | poll() |
1405 | poll() |
1072 | PROTOTYPE: |
1406 | PROTOTYPE: |
1073 | CODE: |
1407 | CODE: |
1074 | if (nreqs) |
1408 | if (nreqs) |
1075 | { |
1409 | { |
1076 | poll_wait (); |
1410 | poll_wait (); |
1077 | poll_cb (); |
1411 | poll_cb (0); |
1078 | } |
1412 | } |
1079 | |
1413 | |
1080 | int |
1414 | int |
1081 | poll_fileno() |
1415 | poll_fileno() |
1082 | PROTOTYPE: |
1416 | PROTOTYPE: |
… | |
… | |
1087 | |
1421 | |
1088 | int |
1422 | int |
1089 | poll_cb(...) |
1423 | poll_cb(...) |
1090 | PROTOTYPE: |
1424 | PROTOTYPE: |
1091 | CODE: |
1425 | CODE: |
1092 | RETVAL = poll_cb (); |
1426 | RETVAL = poll_cb (0); |
|
|
1427 | OUTPUT: |
|
|
1428 | RETVAL |
|
|
1429 | |
|
|
1430 | int |
|
|
1431 | poll_some(int max = 0) |
|
|
1432 | PROTOTYPE: $ |
|
|
1433 | CODE: |
|
|
1434 | RETVAL = poll_cb (max); |
1093 | OUTPUT: |
1435 | OUTPUT: |
1094 | RETVAL |
1436 | RETVAL |
1095 | |
1437 | |
1096 | void |
1438 | void |
1097 | poll_wait() |
1439 | poll_wait() |
… | |
… | |
1106 | CODE: |
1448 | CODE: |
1107 | RETVAL = nreqs; |
1449 | RETVAL = nreqs; |
1108 | OUTPUT: |
1450 | OUTPUT: |
1109 | RETVAL |
1451 | RETVAL |
1110 | |
1452 | |
|
|
1453 | PROTOTYPES: DISABLE |
|
|
1454 | |
|
|
1455 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
|
|
1456 | |
|
|
1457 | void |
|
|
1458 | cancel (aio_req_ornot req) |
|
|
1459 | CODE: |
|
|
1460 | req_cancel (req); |
|
|
1461 | |
|
|
1462 | void |
|
|
1463 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1464 | CODE: |
|
|
1465 | SvREFCNT_dec (req->callback); |
|
|
1466 | req->callback = newSVsv (callback); |
|
|
1467 | |
|
|
1468 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1469 | |
|
|
1470 | void |
|
|
1471 | add (aio_req grp, ...) |
|
|
1472 | PPCODE: |
|
|
1473 | { |
|
|
1474 | int i; |
|
|
1475 | aio_req req; |
|
|
1476 | |
|
|
1477 | if (grp->fd == 2) |
|
|
1478 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1479 | |
|
|
1480 | for (i = 1; i < items; ++i ) |
|
|
1481 | { |
|
|
1482 | if (GIMME_V != G_VOID) |
|
|
1483 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1484 | |
|
|
1485 | req = SvAIO_REQ (ST (i)); |
|
|
1486 | |
|
|
1487 | if (req) |
|
|
1488 | { |
|
|
1489 | ++grp->length; |
|
|
1490 | req->grp = grp; |
|
|
1491 | |
|
|
1492 | req->grp_prev = 0; |
|
|
1493 | req->grp_next = grp->grp_first; |
|
|
1494 | |
|
|
1495 | if (grp->grp_first) |
|
|
1496 | grp->grp_first->grp_prev = req; |
|
|
1497 | |
|
|
1498 | grp->grp_first = req; |
|
|
1499 | } |
|
|
1500 | } |
|
|
1501 | } |
|
|
1502 | |
|
|
1503 | void |
|
|
1504 | cancel_subs (aio_req_ornot req) |
|
|
1505 | CODE: |
|
|
1506 | req_cancel_subs (req); |
|
|
1507 | |
|
|
1508 | void |
|
|
1509 | result (aio_req grp, ...) |
|
|
1510 | CODE: |
|
|
1511 | { |
|
|
1512 | int i; |
|
|
1513 | AV *av = newAV (); |
|
|
1514 | |
|
|
1515 | for (i = 1; i < items; ++i ) |
|
|
1516 | av_push (av, newSVsv (ST (i))); |
|
|
1517 | |
|
|
1518 | SvREFCNT_dec (grp->data); |
|
|
1519 | grp->data = (SV *)av; |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | void |
|
|
1523 | limit (aio_req grp, int limit) |
|
|
1524 | CODE: |
|
|
1525 | grp->fd2 = limit; |
|
|
1526 | aio_grp_feed (grp); |
|
|
1527 | |
|
|
1528 | void |
|
|
1529 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1530 | CODE: |
|
|
1531 | { |
|
|
1532 | SvREFCNT_dec (grp->fh2); |
|
|
1533 | grp->fh2 = newSVsv (callback); |
|
|
1534 | |
|
|
1535 | if (grp->fd2 <= 0) |
|
|
1536 | grp->fd2 = 2; |
|
|
1537 | |
|
|
1538 | aio_grp_feed (grp); |
|
|
1539 | } |
|
|
1540 | |