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1 | #if __linux |
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2 | # define _GNU_SOURCE |
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3 | #endif |
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4 | |
1 | #define _REENTRANT 1 |
5 | #define _REENTRANT 1 |
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6 | |
2 | #include <errno.h> |
7 | #include <errno.h> |
3 | |
8 | |
4 | #include "EXTERN.h" |
9 | #include "EXTERN.h" |
5 | #include "perl.h" |
10 | #include "perl.h" |
6 | #include "XSUB.h" |
11 | #include "XSUB.h" |
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9 | |
14 | |
10 | #include <pthread.h> |
15 | #include <pthread.h> |
11 | |
16 | |
12 | #include <stddef.h> |
17 | #include <stddef.h> |
13 | #include <errno.h> |
18 | #include <errno.h> |
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19 | #include <sys/time.h> |
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20 | #include <sys/select.h> |
14 | #include <sys/types.h> |
21 | #include <sys/types.h> |
15 | #include <sys/stat.h> |
22 | #include <sys/stat.h> |
16 | #include <limits.h> |
23 | #include <limits.h> |
17 | #include <unistd.h> |
24 | #include <unistd.h> |
18 | #include <fcntl.h> |
25 | #include <fcntl.h> |
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39 | # define NAME_MAX 4096 |
46 | # define NAME_MAX 4096 |
40 | #endif |
47 | #endif |
41 | |
48 | |
42 | #if __ia64 |
49 | #if __ia64 |
43 | # define STACKSIZE 65536 |
50 | # define STACKSIZE 65536 |
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51 | #elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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52 | # define STACKSIZE PTHREAD_STACK_MIN |
44 | #else |
53 | #else |
45 | # define STACKSIZE 8192 |
54 | # define STACKSIZE 16384 |
46 | #endif |
55 | #endif |
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56 | |
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57 | /* buffer size for various temporary buffers */ |
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58 | #define AIO_BUFSIZE 65536 |
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59 | |
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60 | #define dBUF \ |
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61 | char *aio_buf = malloc (AIO_BUFSIZE); \ |
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62 | if (!aio_buf) \ |
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63 | return -1; |
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64 | |
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65 | #define fBUF free (aio_buf) |
47 | |
66 | |
48 | enum { |
67 | enum { |
49 | REQ_QUIT, |
68 | REQ_QUIT, |
50 | REQ_OPEN, REQ_CLOSE, |
69 | REQ_OPEN, REQ_CLOSE, |
51 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
70 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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53 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
72 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
54 | REQ_FSYNC, REQ_FDATASYNC, |
73 | REQ_FSYNC, REQ_FDATASYNC, |
55 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
74 | REQ_UNLINK, REQ_RMDIR, REQ_RENAME, |
56 | REQ_READDIR, |
75 | REQ_READDIR, |
57 | REQ_LINK, REQ_SYMLINK, |
76 | REQ_LINK, REQ_SYMLINK, |
58 | REQ_GROUP, |
77 | REQ_GROUP, REQ_NOP, |
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78 | REQ_SLEEP, |
59 | }; |
79 | }; |
60 | |
80 | |
61 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
81 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
62 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
82 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
63 | |
83 | |
64 | typedef struct aio_cb |
84 | typedef struct aio_cb |
65 | { |
85 | { |
66 | struct aio_cb *grp, *grp_prev, *grp_next; |
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67 | |
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68 | struct aio_cb *volatile next; |
86 | struct aio_cb *volatile next; |
69 | |
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70 | SV *self; /* the perl counterpart of this request, if any */ |
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71 | |
87 | |
72 | SV *data, *callback; |
88 | SV *data, *callback; |
73 | SV *fh, *fh2; |
89 | SV *fh, *fh2; |
74 | void *dataptr, *data2ptr; |
90 | void *dataptr, *data2ptr; |
75 | Stat_t *statdata; |
91 | Stat_t *statdata; |
76 | off_t offset; |
92 | off_t offset; |
77 | size_t length; |
93 | size_t length; |
78 | ssize_t result; |
94 | ssize_t result; |
79 | |
95 | |
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96 | STRLEN dataoffset; |
80 | int type; |
97 | int type; |
81 | int fd, fd2; |
98 | int fd, fd2; |
82 | int errorno; |
99 | int errorno; |
83 | STRLEN dataoffset; |
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84 | mode_t mode; /* open */ |
100 | mode_t mode; /* open */ |
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101 | |
85 | unsigned char cancelled; |
102 | unsigned char flags; |
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103 | unsigned char pri; |
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104 | |
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105 | SV *self; /* the perl counterpart of this request, if any */ |
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106 | struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; |
86 | } aio_cb; |
107 | } aio_cb; |
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108 | |
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109 | enum { |
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110 | FLAG_CANCELLED = 0x01, |
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111 | }; |
87 | |
112 | |
88 | typedef aio_cb *aio_req; |
113 | typedef aio_cb *aio_req; |
89 | typedef aio_cb *aio_req_ornot; |
114 | typedef aio_cb *aio_req_ornot; |
90 | typedef aio_cb *aio_group; |
115 | |
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116 | enum { |
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117 | PRI_MIN = -4, |
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118 | PRI_MAX = 4, |
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119 | |
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120 | DEFAULT_PRI = 0, |
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121 | PRI_BIAS = -PRI_MIN, |
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122 | NUM_PRI = PRI_MAX + PRI_BIAS + 1, |
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123 | }; |
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124 | |
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125 | static int next_pri = DEFAULT_PRI + PRI_BIAS; |
91 | |
126 | |
92 | static int started, wanted; |
127 | static int started, wanted; |
93 | static volatile int nreqs; |
128 | static volatile int nreqs; |
94 | static int max_outstanding = 1<<30; |
129 | static int max_outstanding = 1<<30; |
95 | static int respipe [2]; |
130 | static int respipe [2]; |
96 | |
131 | |
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132 | #if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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133 | # define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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134 | #else |
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135 | # define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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136 | #endif |
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137 | |
97 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
138 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
98 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
139 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
99 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
140 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
100 | |
141 | |
101 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
142 | /* |
102 | static volatile aio_req ress, rese; /* queue start, queue end */ |
143 | * a somewhat faster data structure might be nice, but |
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144 | * with 8 priorities this actually needs <20 insns |
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145 | * per shift, the most expensive operation. |
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146 | */ |
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147 | typedef struct { |
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148 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
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149 | int size; |
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150 | } reqq; |
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151 | |
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152 | static reqq req_queue; |
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153 | static reqq res_queue; |
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154 | |
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155 | int reqq_push (reqq *q, aio_req req) |
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156 | { |
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157 | int pri = req->pri; |
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158 | req->next = 0; |
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159 | |
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160 | if (q->qe[pri]) |
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161 | { |
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162 | q->qe[pri]->next = req; |
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163 | q->qe[pri] = req; |
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164 | } |
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165 | else |
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166 | q->qe[pri] = q->qs[pri] = req; |
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167 | |
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168 | return q->size++; |
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169 | } |
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170 | |
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171 | aio_req reqq_shift (reqq *q) |
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172 | { |
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173 | int pri; |
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174 | |
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175 | if (!q->size) |
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176 | return 0; |
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177 | |
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178 | --q->size; |
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179 | |
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180 | for (pri = NUM_PRI; pri--; ) |
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181 | { |
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182 | aio_req req = q->qs[pri]; |
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183 | |
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184 | if (req) |
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185 | { |
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186 | if (!(q->qs[pri] = req->next)) |
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187 | q->qe[pri] = 0; |
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188 | |
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189 | return req; |
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190 | } |
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191 | } |
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192 | |
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193 | abort (); |
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194 | } |
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195 | |
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196 | static void req_invoke (aio_req req); |
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197 | static void req_free (aio_req req); |
103 | |
198 | |
104 | /* must be called at most once */ |
199 | /* must be called at most once */ |
105 | static SV *req_sv (aio_req req, const char *klass) |
200 | static SV *req_sv (aio_req req, const char *klass) |
106 | { |
201 | { |
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202 | if (!req->self) |
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203 | { |
107 | req->self = (SV *)newHV (); |
204 | req->self = (SV *)newHV (); |
108 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
205 | sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
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206 | } |
109 | |
207 | |
110 | return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1))); |
208 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
111 | } |
209 | } |
112 | |
210 | |
113 | static aio_req SvAIO_REQ (SV *sv, const char *klass) |
211 | static aio_req SvAIO_REQ (SV *sv) |
114 | { |
212 | { |
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213 | MAGIC *mg; |
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214 | |
115 | if (!sv_derived_from (sv, klass) || !SvROK (sv)) |
215 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
116 | croak ("object of class %s expected", klass); |
216 | croak ("object of class " AIO_REQ_KLASS " expected"); |
117 | |
217 | |
118 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
218 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
119 | |
219 | |
120 | return mg ? (aio_req)mg->mg_ptr : 0; |
220 | return mg ? (aio_req)mg->mg_ptr : 0; |
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221 | } |
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222 | |
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223 | static void aio_grp_feed (aio_req grp) |
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224 | { |
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225 | while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) |
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226 | { |
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227 | int old_len = grp->length; |
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228 | |
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229 | if (grp->fh2 && SvOK (grp->fh2)) |
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230 | { |
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231 | dSP; |
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232 | |
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233 | ENTER; |
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234 | SAVETMPS; |
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235 | PUSHMARK (SP); |
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236 | XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
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237 | PUTBACK; |
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238 | call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); |
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239 | SPAGAIN; |
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240 | FREETMPS; |
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241 | LEAVE; |
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242 | } |
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243 | |
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244 | /* stop if no progress has been made */ |
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245 | if (old_len == grp->length) |
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246 | { |
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247 | SvREFCNT_dec (grp->fh2); |
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248 | grp->fh2 = 0; |
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249 | break; |
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250 | } |
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251 | } |
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252 | } |
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253 | |
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254 | static void aio_grp_dec (aio_req grp) |
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255 | { |
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256 | --grp->length; |
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257 | |
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258 | /* call feeder, if applicable */ |
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259 | aio_grp_feed (grp); |
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260 | |
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261 | /* finish, if done */ |
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262 | if (!grp->length && grp->fd) |
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263 | { |
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264 | req_invoke (grp); |
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265 | req_free (grp); |
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266 | } |
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267 | } |
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268 | |
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269 | static void poll_wait () |
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270 | { |
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271 | fd_set rfd; |
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272 | |
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273 | while (nreqs) |
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274 | { |
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275 | int size; |
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276 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
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277 | pthread_mutex_lock (&reslock); |
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278 | #endif |
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279 | size = res_queue.size; |
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280 | #if !(__i386 || __x86_64) /* safe without sempahore on this archs */ |
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281 | pthread_mutex_unlock (&reslock); |
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282 | #endif |
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283 | |
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284 | if (size) |
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285 | return; |
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286 | |
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287 | FD_ZERO(&rfd); |
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288 | FD_SET(respipe [0], &rfd); |
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289 | |
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290 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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291 | } |
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292 | } |
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293 | |
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294 | static void req_invoke (aio_req req) |
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295 | { |
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296 | dSP; |
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297 | |
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298 | if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) |
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299 | { |
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300 | errno = req->errorno; |
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301 | |
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302 | ENTER; |
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303 | SAVETMPS; |
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304 | PUSHMARK (SP); |
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305 | EXTEND (SP, 1); |
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306 | |
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307 | switch (req->type) |
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308 | { |
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309 | case REQ_READDIR: |
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310 | { |
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311 | SV *rv = &PL_sv_undef; |
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312 | |
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313 | if (req->result >= 0) |
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314 | { |
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315 | char *buf = req->data2ptr; |
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316 | AV *av = newAV (); |
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317 | |
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318 | while (req->result) |
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319 | { |
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320 | SV *sv = newSVpv (buf, 0); |
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321 | |
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322 | av_push (av, sv); |
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323 | buf += SvCUR (sv) + 1; |
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324 | req->result--; |
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325 | } |
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326 | |
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327 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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328 | } |
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329 | |
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330 | PUSHs (rv); |
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331 | } |
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332 | break; |
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333 | |
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334 | case REQ_OPEN: |
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335 | { |
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336 | /* convert fd to fh */ |
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337 | SV *fh; |
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338 | |
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339 | PUSHs (sv_2mortal (newSViv (req->result))); |
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340 | PUTBACK; |
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341 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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342 | SPAGAIN; |
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343 | |
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344 | fh = SvREFCNT_inc (POPs); |
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345 | |
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346 | PUSHMARK (SP); |
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347 | XPUSHs (sv_2mortal (fh)); |
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348 | } |
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349 | break; |
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350 | |
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351 | case REQ_GROUP: |
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352 | req->fd = 2; /* mark group as finished */ |
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353 | |
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354 | if (req->data) |
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355 | { |
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356 | int i; |
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357 | AV *av = (AV *)req->data; |
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358 | |
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359 | EXTEND (SP, AvFILL (av) + 1); |
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360 | for (i = 0; i <= AvFILL (av); ++i) |
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361 | PUSHs (*av_fetch (av, i, 0)); |
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362 | } |
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363 | break; |
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364 | |
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365 | case REQ_NOP: |
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366 | case REQ_SLEEP: |
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367 | break; |
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368 | |
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369 | default: |
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370 | PUSHs (sv_2mortal (newSViv (req->result))); |
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371 | break; |
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372 | } |
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373 | |
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374 | |
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375 | PUTBACK; |
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376 | call_sv (req->callback, G_VOID | G_EVAL); |
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377 | SPAGAIN; |
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378 | |
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379 | FREETMPS; |
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380 | LEAVE; |
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381 | } |
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382 | |
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383 | if (req->grp) |
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384 | { |
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385 | aio_req grp = req->grp; |
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386 | |
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387 | /* unlink request */ |
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388 | if (req->grp_next) req->grp_next->grp_prev = req->grp_prev; |
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389 | if (req->grp_prev) req->grp_prev->grp_next = req->grp_next; |
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390 | |
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391 | if (grp->grp_first == req) |
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392 | grp->grp_first = req->grp_next; |
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393 | |
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394 | aio_grp_dec (grp); |
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395 | } |
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396 | |
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397 | if (SvTRUE (ERRSV)) |
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398 | { |
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399 | req_free (req); |
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400 | croak (0); |
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401 | } |
121 | } |
402 | } |
122 | |
403 | |
123 | static void req_free (aio_req req) |
404 | static void req_free (aio_req req) |
124 | { |
405 | { |
125 | if (req->self) |
406 | if (req->self) |
126 | { |
407 | { |
127 | sv_unmagic (req->self, PERL_MAGIC_ext); |
408 | sv_unmagic (req->self, PERL_MAGIC_ext); |
128 | SvREFCNT_dec (req->self); |
409 | SvREFCNT_dec (req->self); |
129 | } |
410 | } |
130 | |
411 | |
131 | if (req->data) |
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132 | SvREFCNT_dec (req->data); |
412 | SvREFCNT_dec (req->data); |
133 | |
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134 | if (req->fh) |
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135 | SvREFCNT_dec (req->fh); |
413 | SvREFCNT_dec (req->fh); |
136 | |
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137 | if (req->fh2) |
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138 | SvREFCNT_dec (req->fh2); |
414 | SvREFCNT_dec (req->fh2); |
139 | |
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140 | if (req->statdata) |
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141 | Safefree (req->statdata); |
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142 | |
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143 | if (req->callback) |
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144 | SvREFCNT_dec (req->callback); |
415 | SvREFCNT_dec (req->callback); |
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416 | Safefree (req->statdata); |
145 | |
417 | |
146 | if (req->type == REQ_READDIR && req->result >= 0) |
418 | if (req->type == REQ_READDIR && req->result >= 0) |
147 | free (req->data2ptr); |
419 | free (req->data2ptr); |
148 | |
420 | |
149 | Safefree (req); |
421 | Safefree (req); |
150 | } |
422 | } |
151 | |
423 | |
152 | static void |
424 | static void req_cancel (aio_req req) |
153 | poll_wait () |
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154 | { |
425 | { |
155 | if (nreqs && !ress) |
426 | req->flags |= FLAG_CANCELLED; |
156 | { |
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157 | fd_set rfd; |
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158 | FD_ZERO(&rfd); |
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159 | FD_SET(respipe [0], &rfd); |
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160 | |
427 | |
161 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
428 | if (req->type == REQ_GROUP) |
162 | } |
429 | { |
163 | } |
430 | aio_req sub; |
164 | |
431 | |
165 | static int |
432 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
166 | poll_cb () |
433 | req_cancel (sub); |
|
|
434 | } |
|
|
435 | } |
|
|
436 | |
|
|
437 | static int poll_cb () |
167 | { |
438 | { |
168 | dSP; |
439 | dSP; |
169 | int count = 0; |
440 | int count = 0; |
170 | int do_croak = 0; |
441 | int do_croak = 0; |
171 | aio_req req; |
442 | aio_req req; |
172 | |
443 | |
173 | for (;;) |
444 | for (;;) |
174 | { |
445 | { |
175 | pthread_mutex_lock (&reslock); |
446 | pthread_mutex_lock (&reslock); |
176 | req = ress; |
447 | req = reqq_shift (&res_queue); |
177 | |
448 | |
178 | if (req) |
449 | if (req) |
179 | { |
450 | { |
180 | ress = req->next; |
|
|
181 | |
|
|
182 | if (!ress) |
451 | if (!res_queue.size) |
183 | { |
452 | { |
184 | /* read any signals sent by the worker threads */ |
453 | /* read any signals sent by the worker threads */ |
185 | char buf [32]; |
454 | char buf [32]; |
186 | while (read (respipe [0], buf, 32) == 32) |
455 | while (read (respipe [0], buf, 32) == 32) |
187 | ; |
456 | ; |
188 | |
|
|
189 | rese = 0; |
|
|
190 | } |
457 | } |
191 | } |
458 | } |
192 | |
459 | |
193 | pthread_mutex_unlock (&reslock); |
460 | pthread_mutex_unlock (&reslock); |
194 | |
461 | |
195 | if (!req) |
462 | if (!req) |
196 | break; |
463 | break; |
197 | |
464 | |
198 | nreqs--; |
465 | --nreqs; |
199 | |
466 | |
200 | if (req->type == REQ_QUIT) |
467 | if (req->type == REQ_QUIT) |
201 | started--; |
468 | started--; |
|
|
469 | else if (req->type == REQ_GROUP && req->length) |
|
|
470 | { |
|
|
471 | req->fd = 1; /* mark request as delayed */ |
|
|
472 | continue; |
|
|
473 | } |
202 | else |
474 | else |
203 | { |
475 | { |
204 | int errorno = errno; |
|
|
205 | errno = req->errorno; |
|
|
206 | |
|
|
207 | if (req->type == REQ_READ) |
476 | if (req->type == REQ_READ) |
208 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
477 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
209 | |
478 | |
210 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
479 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
211 | SvREADONLY_off (req->data); |
480 | SvREADONLY_off (req->data); |
… | |
… | |
215 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
484 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
216 | PL_laststatval = req->result; |
485 | PL_laststatval = req->result; |
217 | PL_statcache = *(req->statdata); |
486 | PL_statcache = *(req->statdata); |
218 | } |
487 | } |
219 | |
488 | |
220 | ENTER; |
489 | req_invoke (req); |
221 | PUSHMARK (SP); |
|
|
222 | |
490 | |
223 | if (req->type == REQ_READDIR) |
|
|
224 | { |
|
|
225 | SV *rv = &PL_sv_undef; |
|
|
226 | |
|
|
227 | if (req->result >= 0) |
|
|
228 | { |
|
|
229 | char *buf = req->data2ptr; |
|
|
230 | AV *av = newAV (); |
|
|
231 | |
|
|
232 | while (req->result) |
|
|
233 | { |
|
|
234 | SV *sv = newSVpv (buf, 0); |
|
|
235 | |
|
|
236 | av_push (av, sv); |
|
|
237 | buf += SvCUR (sv) + 1; |
|
|
238 | req->result--; |
|
|
239 | } |
|
|
240 | |
|
|
241 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
|
|
242 | } |
|
|
243 | |
|
|
244 | XPUSHs (rv); |
|
|
245 | } |
|
|
246 | else |
|
|
247 | { |
|
|
248 | XPUSHs (sv_2mortal (newSViv (req->result))); |
|
|
249 | |
|
|
250 | if (req->type == REQ_OPEN) |
|
|
251 | { |
|
|
252 | /* convert fd to fh */ |
|
|
253 | SV *fh; |
|
|
254 | |
|
|
255 | PUTBACK; |
|
|
256 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
|
|
257 | SPAGAIN; |
|
|
258 | |
|
|
259 | fh = SvREFCNT_inc (POPs); |
|
|
260 | |
|
|
261 | PUSHMARK (SP); |
|
|
262 | XPUSHs (sv_2mortal (fh)); |
|
|
263 | } |
|
|
264 | } |
|
|
265 | |
|
|
266 | if (SvOK (req->callback) && !req->cancelled) |
|
|
267 | { |
|
|
268 | PUTBACK; |
|
|
269 | call_sv (req->callback, G_VOID | G_EVAL); |
|
|
270 | SPAGAIN; |
|
|
271 | |
|
|
272 | if (SvTRUE (ERRSV)) |
|
|
273 | { |
|
|
274 | req_free (req); |
|
|
275 | croak (0); |
|
|
276 | } |
|
|
277 | } |
|
|
278 | |
|
|
279 | LEAVE; |
|
|
280 | |
|
|
281 | errno = errorno; |
|
|
282 | count++; |
491 | count++; |
283 | } |
492 | } |
284 | |
493 | |
285 | req_free (req); |
494 | req_free (req); |
286 | } |
495 | } |
… | |
… | |
288 | return count; |
497 | return count; |
289 | } |
498 | } |
290 | |
499 | |
291 | static void *aio_proc(void *arg); |
500 | static void *aio_proc(void *arg); |
292 | |
501 | |
293 | static void |
|
|
294 | start_thread (void) |
502 | static void start_thread (void) |
295 | { |
503 | { |
296 | sigset_t fullsigset, oldsigset; |
504 | sigset_t fullsigset, oldsigset; |
297 | pthread_t tid; |
505 | pthread_t tid; |
298 | pthread_attr_t attr; |
506 | pthread_attr_t attr; |
299 | |
507 | |
… | |
… | |
308 | started++; |
516 | started++; |
309 | |
517 | |
310 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
518 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
311 | } |
519 | } |
312 | |
520 | |
313 | static void |
|
|
314 | req_send (aio_req req) |
521 | static void req_send (aio_req req) |
315 | { |
522 | { |
316 | while (started < wanted && nreqs >= started) |
523 | while (started < wanted && nreqs >= started) |
317 | start_thread (); |
524 | start_thread (); |
318 | |
525 | |
319 | nreqs++; |
526 | ++nreqs; |
320 | |
527 | |
321 | pthread_mutex_lock (&reqlock); |
528 | pthread_mutex_lock (&reqlock); |
322 | |
529 | reqq_push (&req_queue, req); |
323 | req->next = 0; |
|
|
324 | |
|
|
325 | if (reqe) |
|
|
326 | { |
|
|
327 | reqe->next = req; |
|
|
328 | reqe = req; |
|
|
329 | } |
|
|
330 | else |
|
|
331 | reqe = reqs = req; |
|
|
332 | |
|
|
333 | pthread_cond_signal (&reqwait); |
530 | pthread_cond_signal (&reqwait); |
334 | pthread_mutex_unlock (&reqlock); |
531 | pthread_mutex_unlock (&reqlock); |
335 | |
532 | |
336 | if (nreqs > max_outstanding) |
533 | if (nreqs > max_outstanding) |
337 | for (;;) |
534 | for (;;) |
… | |
… | |
343 | |
540 | |
344 | poll_wait (); |
541 | poll_wait (); |
345 | } |
542 | } |
346 | } |
543 | } |
347 | |
544 | |
348 | static void |
545 | static void end_thread (void) |
349 | end_thread (void) |
|
|
350 | { |
546 | { |
351 | aio_req req; |
547 | aio_req req; |
|
|
548 | |
352 | Newz (0, req, 1, aio_cb); |
549 | Newz (0, req, 1, aio_cb); |
|
|
550 | |
353 | req->type = REQ_QUIT; |
551 | req->type = REQ_QUIT; |
|
|
552 | req->pri = PRI_MAX + PRI_BIAS; |
354 | |
553 | |
355 | req_send (req); |
554 | req_send (req); |
356 | } |
555 | } |
357 | |
556 | |
358 | static void min_parallel (int nthreads) |
557 | static void min_parallel (int nthreads) |
… | |
… | |
405 | * normal read/write by using a mutex. slows down execution a lot, |
604 | * normal read/write by using a mutex. slows down execution a lot, |
406 | * but that's your problem, not mine. |
605 | * but that's your problem, not mine. |
407 | */ |
606 | */ |
408 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
607 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
409 | |
608 | |
410 | static ssize_t |
609 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
411 | pread (int fd, void *buf, size_t count, off_t offset) |
|
|
412 | { |
610 | { |
413 | ssize_t res; |
611 | ssize_t res; |
414 | off_t ooffset; |
612 | off_t ooffset; |
415 | |
613 | |
416 | pthread_mutex_lock (&preadwritelock); |
614 | pthread_mutex_lock (&preadwritelock); |
… | |
… | |
421 | pthread_mutex_unlock (&preadwritelock); |
619 | pthread_mutex_unlock (&preadwritelock); |
422 | |
620 | |
423 | return res; |
621 | return res; |
424 | } |
622 | } |
425 | |
623 | |
426 | static ssize_t |
|
|
427 | pwrite (int fd, void *buf, size_t count, off_t offset) |
624 | static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) |
428 | { |
625 | { |
429 | ssize_t res; |
626 | ssize_t res; |
430 | off_t ooffset; |
627 | off_t ooffset; |
431 | |
628 | |
432 | pthread_mutex_lock (&preadwritelock); |
629 | pthread_mutex_lock (&preadwritelock); |
… | |
… | |
445 | #endif |
642 | #endif |
446 | |
643 | |
447 | #if !HAVE_READAHEAD |
644 | #if !HAVE_READAHEAD |
448 | # define readahead aio_readahead |
645 | # define readahead aio_readahead |
449 | |
646 | |
450 | static ssize_t |
|
|
451 | readahead (int fd, off_t offset, size_t count) |
647 | static ssize_t readahead (int fd, off_t offset, size_t count) |
452 | { |
648 | { |
453 | char readahead_buf[4096]; |
649 | dBUF; |
454 | |
650 | |
455 | while (count > 0) |
651 | while (count > 0) |
456 | { |
652 | { |
457 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
653 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
458 | |
654 | |
459 | pread (fd, readahead_buf, len, offset); |
655 | pread (fd, aio_buf, len, offset); |
460 | offset += len; |
656 | offset += len; |
461 | count -= len; |
657 | count -= len; |
462 | } |
658 | } |
463 | |
659 | |
|
|
660 | fBUF; |
|
|
661 | |
464 | errno = 0; |
662 | errno = 0; |
465 | } |
663 | } |
466 | #endif |
664 | #endif |
467 | |
665 | |
468 | #if !HAVE_READDIR_R |
666 | #if !HAVE_READDIR_R |
469 | # define readdir_r aio_readdir_r |
667 | # define readdir_r aio_readdir_r |
470 | |
668 | |
471 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
669 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
472 | |
670 | |
473 | static int |
|
|
474 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
671 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
475 | { |
672 | { |
476 | struct dirent *e; |
673 | struct dirent *e; |
477 | int errorno; |
674 | int errorno; |
478 | |
675 | |
479 | pthread_mutex_lock (&readdirlock); |
676 | pthread_mutex_lock (&readdirlock); |
… | |
… | |
495 | return e ? 0 : -1; |
692 | return e ? 0 : -1; |
496 | } |
693 | } |
497 | #endif |
694 | #endif |
498 | |
695 | |
499 | /* sendfile always needs emulation */ |
696 | /* sendfile always needs emulation */ |
500 | static ssize_t |
|
|
501 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
697 | static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
502 | { |
698 | { |
503 | ssize_t res; |
699 | ssize_t res; |
504 | |
700 | |
505 | if (!count) |
701 | if (!count) |
506 | return 0; |
702 | return 0; |
… | |
… | |
555 | #endif |
751 | #endif |
556 | ) |
752 | ) |
557 | ) |
753 | ) |
558 | { |
754 | { |
559 | /* emulate sendfile. this is a major pain in the ass */ |
755 | /* emulate sendfile. this is a major pain in the ass */ |
560 | char buf[4096]; |
756 | dBUF; |
|
|
757 | |
561 | res = 0; |
758 | res = 0; |
562 | |
759 | |
563 | while (count) |
760 | while (count) |
564 | { |
761 | { |
565 | ssize_t cnt; |
762 | ssize_t cnt; |
566 | |
763 | |
567 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
764 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
568 | |
765 | |
569 | if (cnt <= 0) |
766 | if (cnt <= 0) |
570 | { |
767 | { |
571 | if (cnt && !res) res = -1; |
768 | if (cnt && !res) res = -1; |
572 | break; |
769 | break; |
573 | } |
770 | } |
574 | |
771 | |
575 | cnt = write (ofd, buf, cnt); |
772 | cnt = write (ofd, aio_buf, cnt); |
576 | |
773 | |
577 | if (cnt <= 0) |
774 | if (cnt <= 0) |
578 | { |
775 | { |
579 | if (cnt && !res) res = -1; |
776 | if (cnt && !res) res = -1; |
580 | break; |
777 | break; |
… | |
… | |
582 | |
779 | |
583 | offset += cnt; |
780 | offset += cnt; |
584 | res += cnt; |
781 | res += cnt; |
585 | count -= cnt; |
782 | count -= cnt; |
586 | } |
783 | } |
|
|
784 | |
|
|
785 | fBUF; |
587 | } |
786 | } |
588 | |
787 | |
589 | return res; |
788 | return res; |
590 | } |
789 | } |
591 | |
790 | |
592 | /* read a full directory */ |
791 | /* read a full directory */ |
593 | static int |
|
|
594 | scandir_ (const char *path, void **namesp) |
792 | static int scandir_ (const char *path, void **namesp) |
595 | { |
793 | { |
596 | DIR *dirp = opendir (path); |
794 | DIR *dirp; |
597 | union |
795 | union |
598 | { |
796 | { |
599 | struct dirent d; |
797 | struct dirent d; |
600 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
798 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
601 | } u; |
799 | } *u; |
602 | struct dirent *entp; |
800 | struct dirent *entp; |
603 | char *name, *names; |
801 | char *name, *names; |
604 | int memlen = 4096; |
802 | int memlen = 4096; |
605 | int memofs = 0; |
803 | int memofs = 0; |
606 | int res = 0; |
804 | int res = 0; |
607 | int errorno; |
805 | int errorno; |
608 | |
806 | |
|
|
807 | dirp = opendir (path); |
609 | if (!dirp) |
808 | if (!dirp) |
610 | return -1; |
809 | return -1; |
611 | |
810 | |
|
|
811 | u = malloc (sizeof (*u)); |
612 | names = malloc (memlen); |
812 | names = malloc (memlen); |
613 | |
813 | |
|
|
814 | if (u && names) |
614 | for (;;) |
815 | for (;;) |
615 | { |
816 | { |
|
|
817 | errno = 0; |
616 | errno = 0, readdir_r (dirp, &u.d, &entp); |
818 | readdir_r (dirp, &u->d, &entp); |
617 | |
819 | |
618 | if (!entp) |
820 | if (!entp) |
619 | break; |
821 | break; |
620 | |
822 | |
621 | name = entp->d_name; |
823 | name = entp->d_name; |
622 | |
824 | |
623 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
825 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
624 | { |
826 | { |
625 | int len = strlen (name) + 1; |
827 | int len = strlen (name) + 1; |
626 | |
828 | |
627 | res++; |
829 | res++; |
628 | |
830 | |
629 | while (memofs + len > memlen) |
831 | while (memofs + len > memlen) |
630 | { |
832 | { |
631 | memlen *= 2; |
833 | memlen *= 2; |
632 | names = realloc (names, memlen); |
834 | names = realloc (names, memlen); |
633 | if (!names) |
835 | if (!names) |
634 | break; |
836 | break; |
635 | } |
837 | } |
636 | |
838 | |
637 | memcpy (names + memofs, name, len); |
839 | memcpy (names + memofs, name, len); |
638 | memofs += len; |
840 | memofs += len; |
639 | } |
841 | } |
640 | } |
842 | } |
641 | |
843 | |
642 | errorno = errno; |
844 | errorno = errno; |
|
|
845 | free (u); |
643 | closedir (dirp); |
846 | closedir (dirp); |
644 | |
847 | |
645 | if (errorno) |
848 | if (errorno) |
646 | { |
849 | { |
647 | free (names); |
850 | free (names); |
… | |
… | |
653 | return res; |
856 | return res; |
654 | } |
857 | } |
655 | |
858 | |
656 | /*****************************************************************************/ |
859 | /*****************************************************************************/ |
657 | |
860 | |
658 | static void * |
|
|
659 | aio_proc (void *thr_arg) |
861 | static void *aio_proc (void *thr_arg) |
660 | { |
862 | { |
661 | aio_req req; |
863 | aio_req req; |
662 | int type; |
864 | int type; |
663 | |
865 | |
664 | do |
866 | do |
665 | { |
867 | { |
666 | pthread_mutex_lock (&reqlock); |
868 | pthread_mutex_lock (&reqlock); |
667 | |
869 | |
668 | for (;;) |
870 | for (;;) |
669 | { |
871 | { |
670 | req = reqs; |
872 | req = reqq_shift (&req_queue); |
671 | |
|
|
672 | if (reqs) |
|
|
673 | { |
|
|
674 | reqs = reqs->next; |
|
|
675 | if (!reqs) reqe = 0; |
|
|
676 | } |
|
|
677 | |
873 | |
678 | if (req) |
874 | if (req) |
679 | break; |
875 | break; |
680 | |
876 | |
681 | pthread_cond_wait (&reqwait, &reqlock); |
877 | pthread_cond_wait (&reqwait, &reqlock); |
682 | } |
878 | } |
683 | |
879 | |
684 | pthread_mutex_unlock (&reqlock); |
880 | pthread_mutex_unlock (&reqlock); |
685 | |
881 | |
686 | errno = 0; /* strictly unnecessary */ |
882 | errno = 0; /* strictly unnecessary */ |
|
|
883 | type = req->type; /* remember type for QUIT check */ |
687 | |
884 | |
688 | if (!req->cancelled) |
885 | if (!(req->flags & FLAG_CANCELLED)) |
689 | switch (req->type) |
886 | switch (type) |
690 | { |
887 | { |
691 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
888 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
692 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
889 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
693 | |
890 | |
694 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
891 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
… | |
… | |
708 | |
905 | |
709 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
906 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
710 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
907 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
711 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
908 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
712 | |
909 | |
|
|
910 | case REQ_SLEEP: |
|
|
911 | { |
|
|
912 | struct timeval tv; |
|
|
913 | |
|
|
914 | tv.tv_sec = req->fd; |
|
|
915 | tv.tv_usec = req->fd2; |
|
|
916 | |
|
|
917 | req->result = select (0, 0, 0, 0, &tv); |
|
|
918 | } |
|
|
919 | |
|
|
920 | case REQ_GROUP: |
|
|
921 | case REQ_NOP: |
713 | case REQ_QUIT: |
922 | case REQ_QUIT: |
714 | break; |
923 | break; |
715 | |
924 | |
716 | default: |
925 | default: |
717 | req->result = ENOSYS; |
926 | req->result = ENOSYS; |
… | |
… | |
720 | |
929 | |
721 | req->errorno = errno; |
930 | req->errorno = errno; |
722 | |
931 | |
723 | pthread_mutex_lock (&reslock); |
932 | pthread_mutex_lock (&reslock); |
724 | |
933 | |
725 | req->next = 0; |
934 | if (!reqq_push (&res_queue, req)) |
726 | |
|
|
727 | if (rese) |
|
|
728 | { |
|
|
729 | rese->next = req; |
|
|
730 | rese = req; |
|
|
731 | } |
|
|
732 | else |
|
|
733 | { |
|
|
734 | rese = ress = req; |
|
|
735 | |
|
|
736 | /* write a dummy byte to the pipe so fh becomes ready */ |
935 | /* write a dummy byte to the pipe so fh becomes ready */ |
737 | write (respipe [1], &respipe, 1); |
936 | write (respipe [1], &respipe, 1); |
738 | } |
|
|
739 | |
937 | |
740 | pthread_mutex_unlock (&reslock); |
938 | pthread_mutex_unlock (&reslock); |
741 | } |
939 | } |
742 | while (type != REQ_QUIT); |
940 | while (type != REQ_QUIT); |
743 | |
941 | |
… | |
… | |
774 | { |
972 | { |
775 | aio_req prv; |
973 | aio_req prv; |
776 | |
974 | |
777 | started = 0; |
975 | started = 0; |
778 | |
976 | |
779 | while (reqs) |
977 | while (prv = reqq_shift (&req_queue)) |
780 | { |
|
|
781 | prv = reqs; |
|
|
782 | reqs = prv->next; |
|
|
783 | req_free (prv); |
978 | req_free (prv); |
784 | } |
|
|
785 | |
979 | |
786 | reqs = reqe = 0; |
980 | while (prv = reqq_shift (&res_queue)) |
787 | |
|
|
788 | while (ress) |
|
|
789 | { |
|
|
790 | prv = ress; |
|
|
791 | ress = prv->next; |
|
|
792 | req_free (prv); |
981 | req_free (prv); |
793 | } |
982 | |
794 | |
|
|
795 | ress = rese = 0; |
|
|
796 | |
|
|
797 | close (respipe [0]); |
983 | close (respipe [0]); |
798 | close (respipe [1]); |
984 | close (respipe [1]); |
799 | create_pipe (); |
985 | create_pipe (); |
800 | |
986 | |
801 | atfork_parent (); |
987 | atfork_parent (); |
802 | } |
988 | } |
803 | |
989 | |
804 | #define dREQ \ |
990 | #define dREQ \ |
805 | aio_req req; \ |
991 | aio_req req; \ |
|
|
992 | int req_pri = next_pri; \ |
|
|
993 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
806 | \ |
994 | \ |
807 | if (SvOK (callback) && !SvROK (callback)) \ |
995 | if (SvOK (callback) && !SvROK (callback)) \ |
808 | croak ("callback must be undef or of reference type"); \ |
996 | croak ("callback must be undef or of reference type"); \ |
809 | \ |
997 | \ |
810 | Newz (0, req, 1, aio_cb); \ |
998 | Newz (0, req, 1, aio_cb); \ |
811 | if (!req) \ |
999 | if (!req) \ |
812 | croak ("out of memory during aio_req allocation"); \ |
1000 | croak ("out of memory during aio_req allocation"); \ |
813 | \ |
1001 | \ |
814 | req->callback = newSVsv (callback) |
1002 | req->callback = newSVsv (callback); \ |
|
|
1003 | req->pri = req_pri |
815 | |
1004 | |
816 | #define REQ_SEND \ |
1005 | #define REQ_SEND \ |
817 | req_send (req); \ |
1006 | req_send (req); \ |
818 | \ |
1007 | \ |
819 | if (GIMME_V != G_VOID) \ |
1008 | if (GIMME_V != G_VOID) \ |
… | |
… | |
1073 | |
1262 | |
1074 | REQ_SEND; |
1263 | REQ_SEND; |
1075 | } |
1264 | } |
1076 | |
1265 | |
1077 | void |
1266 | void |
|
|
1267 | aio_sleep (delay,callback=&PL_sv_undef) |
|
|
1268 | double delay |
|
|
1269 | SV * callback |
|
|
1270 | PPCODE: |
|
|
1271 | { |
|
|
1272 | dREQ; |
|
|
1273 | |
|
|
1274 | req->type = REQ_SLEEP; |
|
|
1275 | req->fd = delay < 0. ? 0 : delay; |
|
|
1276 | req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); |
|
|
1277 | |
|
|
1278 | REQ_SEND; |
|
|
1279 | } |
|
|
1280 | |
|
|
1281 | void |
1078 | aio_group (callback=&PL_sv_undef) |
1282 | aio_group (callback=&PL_sv_undef) |
1079 | SV * callback |
1283 | SV * callback |
1080 | PROTOTYPE: ;& |
1284 | PROTOTYPE: ;$ |
1081 | PPCODE: |
1285 | PPCODE: |
1082 | { |
1286 | { |
1083 | dREQ; |
1287 | dREQ; |
|
|
1288 | |
1084 | req->type = REQ_GROUP; |
1289 | req->type = REQ_GROUP; |
|
|
1290 | req_send (req); |
|
|
1291 | |
1085 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1292 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1086 | } |
1293 | } |
|
|
1294 | |
|
|
1295 | void |
|
|
1296 | aio_nop (callback=&PL_sv_undef) |
|
|
1297 | SV * callback |
|
|
1298 | PPCODE: |
|
|
1299 | { |
|
|
1300 | dREQ; |
|
|
1301 | |
|
|
1302 | req->type = REQ_NOP; |
|
|
1303 | |
|
|
1304 | REQ_SEND; |
|
|
1305 | } |
|
|
1306 | |
|
|
1307 | void |
|
|
1308 | aioreq_pri (int pri = DEFAULT_PRI) |
|
|
1309 | CODE: |
|
|
1310 | if (pri < PRI_MIN) pri = PRI_MIN; |
|
|
1311 | if (pri > PRI_MAX) pri = PRI_MAX; |
|
|
1312 | next_pri = pri + PRI_BIAS; |
1087 | |
1313 | |
1088 | void |
1314 | void |
1089 | flush () |
1315 | flush () |
1090 | PROTOTYPE: |
1316 | PROTOTYPE: |
1091 | CODE: |
1317 | CODE: |
… | |
… | |
1134 | CODE: |
1360 | CODE: |
1135 | RETVAL = nreqs; |
1361 | RETVAL = nreqs; |
1136 | OUTPUT: |
1362 | OUTPUT: |
1137 | RETVAL |
1363 | RETVAL |
1138 | |
1364 | |
|
|
1365 | PROTOTYPES: DISABLE |
|
|
1366 | |
1139 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1367 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1140 | |
1368 | |
1141 | void |
1369 | void |
1142 | cancel (aio_req_ornot req) |
1370 | cancel (aio_req_ornot req) |
1143 | PROTOTYPE: |
|
|
1144 | CODE: |
1371 | CODE: |
1145 | req->cancelled = 1; |
1372 | req_cancel (req); |
1146 | |
1373 | |
|
|
1374 | void |
|
|
1375 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1376 | CODE: |
|
|
1377 | SvREFCNT_dec (req->callback); |
|
|
1378 | req->callback = newSVsv (callback); |
|
|
1379 | |
|
|
1380 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1381 | |
|
|
1382 | void |
|
|
1383 | add (aio_req grp, ...) |
|
|
1384 | PPCODE: |
|
|
1385 | { |
|
|
1386 | int i; |
|
|
1387 | aio_req req; |
|
|
1388 | |
|
|
1389 | if (grp->fd == 2) |
|
|
1390 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1391 | |
|
|
1392 | for (i = 1; i < items; ++i ) |
|
|
1393 | { |
|
|
1394 | if (GIMME_V != G_VOID) |
|
|
1395 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1396 | |
|
|
1397 | req = SvAIO_REQ (ST (i)); |
|
|
1398 | |
|
|
1399 | if (req) |
|
|
1400 | { |
|
|
1401 | ++grp->length; |
|
|
1402 | req->grp = grp; |
|
|
1403 | |
|
|
1404 | req->grp_prev = 0; |
|
|
1405 | req->grp_next = grp->grp_first; |
|
|
1406 | |
|
|
1407 | if (grp->grp_first) |
|
|
1408 | grp->grp_first->grp_prev = req; |
|
|
1409 | |
|
|
1410 | grp->grp_first = req; |
|
|
1411 | } |
|
|
1412 | } |
|
|
1413 | } |
|
|
1414 | |
|
|
1415 | void |
|
|
1416 | result (aio_req grp, ...) |
|
|
1417 | CODE: |
|
|
1418 | { |
|
|
1419 | int i; |
|
|
1420 | AV *av = newAV (); |
|
|
1421 | |
|
|
1422 | for (i = 1; i < items; ++i ) |
|
|
1423 | av_push (av, newSVsv (ST (i))); |
|
|
1424 | |
|
|
1425 | SvREFCNT_dec (grp->data); |
|
|
1426 | grp->data = (SV *)av; |
|
|
1427 | } |
|
|
1428 | |
|
|
1429 | void |
|
|
1430 | limit (aio_req grp, int limit) |
|
|
1431 | CODE: |
|
|
1432 | grp->fd2 = limit; |
|
|
1433 | aio_grp_feed (grp); |
|
|
1434 | |
|
|
1435 | void |
|
|
1436 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1437 | CODE: |
|
|
1438 | { |
|
|
1439 | SvREFCNT_dec (grp->fh2); |
|
|
1440 | grp->fh2 = newSVsv (callback); |
|
|
1441 | |
|
|
1442 | if (grp->fd2 <= 0) |
|
|
1443 | grp->fd2 = 2; |
|
|
1444 | |
|
|
1445 | aio_grp_feed (grp); |
|
|
1446 | } |
|
|
1447 | |