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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, |
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77 | REQ_GROUP, REQ_NOP, |
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78 | REQ_BUSY, |
58 | }; |
79 | }; |
59 | |
80 | |
60 | #define AIO_CB_KLASS "IO::AIO::CB" |
81 | #define AIO_REQ_KLASS "IO::AIO::REQ" |
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82 | #define AIO_GRP_KLASS "IO::AIO::GRP" |
61 | |
83 | |
62 | typedef struct aio_cb |
84 | typedef struct aio_cb |
63 | { |
85 | { |
64 | struct aio_cb *grp_prev, *grp_next; |
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65 | struct aio_grp *grp; |
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66 | |
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67 | struct aio_cb *volatile next; |
86 | struct aio_cb *volatile next; |
68 | |
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69 | SV *self; /* the perl counterpart of this request, if any */ |
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70 | |
87 | |
71 | SV *data, *callback; |
88 | SV *data, *callback; |
72 | SV *fh, *fh2; |
89 | SV *fh, *fh2; |
73 | void *dataptr, *data2ptr; |
90 | void *dataptr, *data2ptr; |
74 | Stat_t *statdata; |
91 | Stat_t *statdata; |
75 | off_t offset; |
92 | off_t offset; |
76 | size_t length; |
93 | size_t length; |
77 | ssize_t result; |
94 | ssize_t result; |
78 | |
95 | |
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96 | STRLEN dataoffset; |
79 | int type; |
97 | int type; |
80 | int fd, fd2; |
98 | int fd, fd2; |
81 | int errorno; |
99 | int errorno; |
82 | STRLEN dataoffset; |
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83 | mode_t mode; /* open */ |
100 | mode_t mode; /* open */ |
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101 | |
84 | 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; |
85 | } 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 | }; |
86 | |
112 | |
87 | typedef aio_cb *aio_req; |
113 | typedef aio_cb *aio_req; |
88 | typedef aio_cb *aio_req_ornot; |
114 | typedef aio_cb *aio_req_ornot; |
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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; |
89 | |
126 | |
90 | static int started, wanted; |
127 | static int started, wanted; |
91 | static volatile int nreqs; |
128 | static volatile int nreqs; |
92 | static int max_outstanding = 1<<30; |
129 | static int max_outstanding = 1<<30; |
93 | static int respipe [2]; |
130 | static int respipe [2]; |
94 | |
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 | |
95 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
138 | static pthread_mutex_t reslock = AIO_MUTEX_INIT; |
96 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
139 | static pthread_mutex_t reqlock = AIO_MUTEX_INIT; |
97 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
140 | static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; |
98 | |
141 | |
99 | static volatile aio_req reqs, reqe; /* queue start, queue end */ |
142 | /* |
100 | static volatile aio_req ress, rese; /* queue start, queue end */ |
143 | * a somewhat faster data structure might be nice, but |
101 | |
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 | */ |
102 | typedef struct aio_grp |
147 | typedef struct { |
103 | { |
148 | aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */ |
104 | struct aio_cb *first, *last; |
149 | int size; |
105 | SV *callback; |
150 | } reqq; |
106 | int busycount; |
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107 | } aio_grp; |
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108 | |
151 | |
109 | static void aio_grp_begin (aio_grp *grp) |
152 | static reqq req_queue; |
110 | { |
153 | static reqq res_queue; |
111 | ++grp->busycount; |
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112 | } |
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113 | |
154 | |
114 | static void aio_grp_end (aio_grp *grp) |
155 | int reqq_push (reqq *q, aio_req req) |
115 | { |
156 | { |
116 | --grp->busycount; |
157 | int pri = req->pri; |
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158 | req->next = 0; |
117 | |
159 | |
118 | if (grp->busycount) |
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) |
119 | return; |
176 | return 0; |
120 | |
177 | |
121 | SvREFCNT_dec (grp->callback); |
178 | --q->size; |
122 | grp->callback = 0; |
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123 | } |
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124 | |
179 | |
125 | static aio_grp *aio_grp_new () |
180 | for (pri = NUM_PRI; pri--; ) |
126 | { |
181 | { |
127 | aio_grp *grp; |
182 | aio_req req = q->qs[pri]; |
128 | |
183 | |
129 | Newz (0, grp, 1, aio_grp); |
184 | if (req) |
130 | aio_grp_begin (grp); |
185 | { |
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186 | if (!(q->qs[pri] = req->next)) |
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187 | q->qe[pri] = 0; |
131 | |
188 | |
132 | return grp; |
189 | return req; |
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190 | } |
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191 | } |
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192 | |
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193 | abort (); |
133 | } |
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); |
134 | |
198 | |
135 | /* must be called at most once */ |
199 | /* must be called at most once */ |
136 | static SV *req_sv (aio_req req) |
200 | static SV *req_sv (aio_req req, const char *klass) |
137 | { |
201 | { |
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202 | if (!req->self) |
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203 | { |
138 | req->self = (SV *)newHV (); |
204 | req->self = (SV *)newHV (); |
139 | 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 | } |
140 | |
207 | |
141 | return sv_bless (newRV_noinc (req->self), gv_stashpv (AIO_CB_KLASS, 1)); |
208 | return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
142 | } |
209 | } |
143 | |
210 | |
144 | static aio_req SvAIO_REQ (SV *sv) |
211 | static aio_req SvAIO_REQ (SV *sv) |
145 | { |
212 | { |
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213 | MAGIC *mg; |
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214 | |
146 | if (!sv_derived_from (sv, AIO_CB_KLASS) || !SvROK (sv)) |
215 | if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
147 | croak ("object of class " AIO_CB_KLASS " expected"); |
216 | croak ("object of class " AIO_REQ_KLASS " expected"); |
148 | |
217 | |
149 | MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
218 | mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
150 | |
219 | |
151 | 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_BUSY: |
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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 | } |
152 | } |
402 | } |
153 | |
403 | |
154 | static void req_free (aio_req req) |
404 | static void req_free (aio_req req) |
155 | { |
405 | { |
156 | if (req->self) |
406 | if (req->self) |
157 | { |
407 | { |
158 | sv_unmagic (req->self, PERL_MAGIC_ext); |
408 | sv_unmagic (req->self, PERL_MAGIC_ext); |
159 | SvREFCNT_dec (req->self); |
409 | SvREFCNT_dec (req->self); |
160 | } |
410 | } |
161 | |
411 | |
162 | if (req->data) |
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163 | SvREFCNT_dec (req->data); |
412 | SvREFCNT_dec (req->data); |
164 | |
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165 | if (req->fh) |
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166 | SvREFCNT_dec (req->fh); |
413 | SvREFCNT_dec (req->fh); |
167 | |
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168 | if (req->fh2) |
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169 | SvREFCNT_dec (req->fh2); |
414 | SvREFCNT_dec (req->fh2); |
170 | |
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171 | if (req->statdata) |
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172 | Safefree (req->statdata); |
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173 | |
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174 | if (req->callback) |
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175 | SvREFCNT_dec (req->callback); |
415 | SvREFCNT_dec (req->callback); |
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416 | Safefree (req->statdata); |
176 | |
417 | |
177 | if (req->type == REQ_READDIR && req->result >= 0) |
418 | if (req->type == REQ_READDIR && req->result >= 0) |
178 | free (req->data2ptr); |
419 | free (req->data2ptr); |
179 | |
420 | |
180 | Safefree (req); |
421 | Safefree (req); |
181 | } |
422 | } |
182 | |
423 | |
183 | static void |
424 | static void req_cancel (aio_req req) |
184 | poll_wait () |
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185 | { |
425 | { |
186 | if (nreqs && !ress) |
426 | req->flags |= FLAG_CANCELLED; |
187 | { |
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188 | fd_set rfd; |
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189 | FD_ZERO(&rfd); |
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190 | FD_SET(respipe [0], &rfd); |
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191 | |
427 | |
192 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
428 | if (req->type == REQ_GROUP) |
193 | } |
429 | { |
194 | } |
430 | aio_req sub; |
195 | |
431 | |
196 | static int |
432 | for (sub = req->grp_first; sub; sub = sub->grp_next) |
197 | poll_cb () |
433 | req_cancel (sub); |
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434 | } |
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435 | } |
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436 | |
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437 | static int poll_cb () |
198 | { |
438 | { |
199 | dSP; |
439 | dSP; |
200 | int count = 0; |
440 | int count = 0; |
201 | int do_croak = 0; |
441 | int do_croak = 0; |
202 | aio_req req; |
442 | aio_req req; |
203 | |
443 | |
204 | for (;;) |
444 | for (;;) |
205 | { |
445 | { |
206 | pthread_mutex_lock (&reslock); |
446 | pthread_mutex_lock (&reslock); |
207 | req = ress; |
447 | req = reqq_shift (&res_queue); |
208 | |
448 | |
209 | if (req) |
449 | if (req) |
210 | { |
450 | { |
211 | ress = req->next; |
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212 | |
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213 | if (!ress) |
451 | if (!res_queue.size) |
214 | { |
452 | { |
215 | /* read any signals sent by the worker threads */ |
453 | /* read any signals sent by the worker threads */ |
216 | char buf [32]; |
454 | char buf [32]; |
217 | while (read (respipe [0], buf, 32) == 32) |
455 | while (read (respipe [0], buf, 32) == 32) |
218 | ; |
456 | ; |
219 | |
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220 | rese = 0; |
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221 | } |
457 | } |
222 | } |
458 | } |
223 | |
459 | |
224 | pthread_mutex_unlock (&reslock); |
460 | pthread_mutex_unlock (&reslock); |
225 | |
461 | |
226 | if (!req) |
462 | if (!req) |
227 | break; |
463 | break; |
228 | |
464 | |
229 | nreqs--; |
465 | --nreqs; |
230 | |
466 | |
231 | if (req->type == REQ_QUIT) |
467 | if (req->type == REQ_QUIT) |
232 | started--; |
468 | started--; |
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469 | else if (req->type == REQ_GROUP && req->length) |
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470 | { |
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471 | req->fd = 1; /* mark request as delayed */ |
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472 | continue; |
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473 | } |
233 | else |
474 | else |
234 | { |
475 | { |
235 | int errorno = errno; |
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236 | errno = req->errorno; |
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237 | |
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238 | if (req->type == REQ_READ) |
476 | if (req->type == REQ_READ) |
239 | 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)); |
240 | |
478 | |
241 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
479 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
242 | SvREADONLY_off (req->data); |
480 | SvREADONLY_off (req->data); |
… | |
… | |
246 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
484 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
247 | PL_laststatval = req->result; |
485 | PL_laststatval = req->result; |
248 | PL_statcache = *(req->statdata); |
486 | PL_statcache = *(req->statdata); |
249 | } |
487 | } |
250 | |
488 | |
251 | ENTER; |
489 | req_invoke (req); |
252 | PUSHMARK (SP); |
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253 | |
490 | |
254 | if (req->type == REQ_READDIR) |
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255 | { |
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256 | SV *rv = &PL_sv_undef; |
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257 | |
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258 | if (req->result >= 0) |
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259 | { |
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260 | char *buf = req->data2ptr; |
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261 | AV *av = newAV (); |
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262 | |
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263 | while (req->result) |
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264 | { |
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265 | SV *sv = newSVpv (buf, 0); |
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266 | |
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267 | av_push (av, sv); |
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268 | buf += SvCUR (sv) + 1; |
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269 | req->result--; |
|
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270 | } |
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271 | |
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272 | rv = sv_2mortal (newRV_noinc ((SV *)av)); |
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273 | } |
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274 | |
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275 | XPUSHs (rv); |
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276 | } |
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277 | else |
|
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278 | { |
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279 | XPUSHs (sv_2mortal (newSViv (req->result))); |
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280 | |
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281 | if (req->type == REQ_OPEN) |
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282 | { |
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283 | /* convert fd to fh */ |
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284 | SV *fh; |
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285 | |
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286 | PUTBACK; |
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287 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
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288 | SPAGAIN; |
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289 | |
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290 | fh = SvREFCNT_inc (POPs); |
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291 | |
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292 | PUSHMARK (SP); |
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293 | XPUSHs (sv_2mortal (fh)); |
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294 | } |
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295 | } |
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296 | |
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297 | if (SvOK (req->callback) && !req->cancelled) |
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298 | { |
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299 | PUTBACK; |
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300 | call_sv (req->callback, G_VOID | G_EVAL); |
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301 | SPAGAIN; |
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302 | |
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303 | if (SvTRUE (ERRSV)) |
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304 | { |
|
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305 | req_free (req); |
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306 | croak (0); |
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307 | } |
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308 | } |
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309 | |
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310 | LEAVE; |
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311 | |
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312 | errno = errorno; |
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313 | count++; |
491 | count++; |
314 | } |
492 | } |
315 | |
493 | |
316 | req_free (req); |
494 | req_free (req); |
317 | } |
495 | } |
… | |
… | |
319 | return count; |
497 | return count; |
320 | } |
498 | } |
321 | |
499 | |
322 | static void *aio_proc(void *arg); |
500 | static void *aio_proc(void *arg); |
323 | |
501 | |
324 | static void |
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325 | start_thread (void) |
502 | static void start_thread (void) |
326 | { |
503 | { |
327 | sigset_t fullsigset, oldsigset; |
504 | sigset_t fullsigset, oldsigset; |
328 | pthread_t tid; |
505 | pthread_t tid; |
329 | pthread_attr_t attr; |
506 | pthread_attr_t attr; |
330 | |
507 | |
… | |
… | |
339 | started++; |
516 | started++; |
340 | |
517 | |
341 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
518 | sigprocmask (SIG_SETMASK, &oldsigset, 0); |
342 | } |
519 | } |
343 | |
520 | |
344 | static void |
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345 | req_send (aio_req req) |
521 | static void req_send (aio_req req) |
346 | { |
522 | { |
347 | while (started < wanted && nreqs >= started) |
523 | while (started < wanted && nreqs >= started) |
348 | start_thread (); |
524 | start_thread (); |
349 | |
525 | |
350 | nreqs++; |
526 | ++nreqs; |
351 | |
527 | |
352 | pthread_mutex_lock (&reqlock); |
528 | pthread_mutex_lock (&reqlock); |
353 | |
529 | reqq_push (&req_queue, req); |
354 | req->next = 0; |
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355 | |
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356 | if (reqe) |
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357 | { |
|
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358 | reqe->next = req; |
|
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359 | reqe = req; |
|
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360 | } |
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361 | else |
|
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362 | reqe = reqs = req; |
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363 | |
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364 | pthread_cond_signal (&reqwait); |
530 | pthread_cond_signal (&reqwait); |
365 | pthread_mutex_unlock (&reqlock); |
531 | pthread_mutex_unlock (&reqlock); |
366 | |
532 | |
367 | if (nreqs > max_outstanding) |
533 | if (nreqs > max_outstanding) |
368 | for (;;) |
534 | for (;;) |
… | |
… | |
374 | |
540 | |
375 | poll_wait (); |
541 | poll_wait (); |
376 | } |
542 | } |
377 | } |
543 | } |
378 | |
544 | |
379 | static void |
545 | static void end_thread (void) |
380 | end_thread (void) |
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381 | { |
546 | { |
382 | aio_req req; |
547 | aio_req req; |
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548 | |
383 | Newz (0, req, 1, aio_cb); |
549 | Newz (0, req, 1, aio_cb); |
|
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550 | |
384 | req->type = REQ_QUIT; |
551 | req->type = REQ_QUIT; |
|
|
552 | req->pri = PRI_MAX + PRI_BIAS; |
385 | |
553 | |
386 | req_send (req); |
554 | req_send (req); |
387 | } |
555 | } |
388 | |
556 | |
389 | static void min_parallel (int nthreads) |
557 | static void min_parallel (int nthreads) |
… | |
… | |
436 | * 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, |
437 | * but that's your problem, not mine. |
605 | * but that's your problem, not mine. |
438 | */ |
606 | */ |
439 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
607 | static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; |
440 | |
608 | |
441 | static ssize_t |
609 | static ssize_t pread (int fd, void *buf, size_t count, off_t offset) |
442 | pread (int fd, void *buf, size_t count, off_t offset) |
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|
443 | { |
610 | { |
444 | ssize_t res; |
611 | ssize_t res; |
445 | off_t ooffset; |
612 | off_t ooffset; |
446 | |
613 | |
447 | pthread_mutex_lock (&preadwritelock); |
614 | pthread_mutex_lock (&preadwritelock); |
… | |
… | |
452 | pthread_mutex_unlock (&preadwritelock); |
619 | pthread_mutex_unlock (&preadwritelock); |
453 | |
620 | |
454 | return res; |
621 | return res; |
455 | } |
622 | } |
456 | |
623 | |
457 | static ssize_t |
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|
458 | 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) |
459 | { |
625 | { |
460 | ssize_t res; |
626 | ssize_t res; |
461 | off_t ooffset; |
627 | off_t ooffset; |
462 | |
628 | |
463 | pthread_mutex_lock (&preadwritelock); |
629 | pthread_mutex_lock (&preadwritelock); |
… | |
… | |
476 | #endif |
642 | #endif |
477 | |
643 | |
478 | #if !HAVE_READAHEAD |
644 | #if !HAVE_READAHEAD |
479 | # define readahead aio_readahead |
645 | # define readahead aio_readahead |
480 | |
646 | |
481 | static ssize_t |
|
|
482 | readahead (int fd, off_t offset, size_t count) |
647 | static ssize_t readahead (int fd, off_t offset, size_t count) |
483 | { |
648 | { |
484 | char readahead_buf[4096]; |
649 | dBUF; |
485 | |
650 | |
486 | while (count > 0) |
651 | while (count > 0) |
487 | { |
652 | { |
488 | size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); |
653 | size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; |
489 | |
654 | |
490 | pread (fd, readahead_buf, len, offset); |
655 | pread (fd, aio_buf, len, offset); |
491 | offset += len; |
656 | offset += len; |
492 | count -= len; |
657 | count -= len; |
493 | } |
658 | } |
494 | |
659 | |
|
|
660 | fBUF; |
|
|
661 | |
495 | errno = 0; |
662 | errno = 0; |
496 | } |
663 | } |
497 | #endif |
664 | #endif |
498 | |
665 | |
499 | #if !HAVE_READDIR_R |
666 | #if !HAVE_READDIR_R |
500 | # define readdir_r aio_readdir_r |
667 | # define readdir_r aio_readdir_r |
501 | |
668 | |
502 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
669 | static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; |
503 | |
670 | |
504 | static int |
|
|
505 | readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
671 | static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) |
506 | { |
672 | { |
507 | struct dirent *e; |
673 | struct dirent *e; |
508 | int errorno; |
674 | int errorno; |
509 | |
675 | |
510 | pthread_mutex_lock (&readdirlock); |
676 | pthread_mutex_lock (&readdirlock); |
… | |
… | |
526 | return e ? 0 : -1; |
692 | return e ? 0 : -1; |
527 | } |
693 | } |
528 | #endif |
694 | #endif |
529 | |
695 | |
530 | /* sendfile always needs emulation */ |
696 | /* sendfile always needs emulation */ |
531 | static ssize_t |
|
|
532 | 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) |
533 | { |
698 | { |
534 | ssize_t res; |
699 | ssize_t res; |
535 | |
700 | |
536 | if (!count) |
701 | if (!count) |
537 | return 0; |
702 | return 0; |
… | |
… | |
586 | #endif |
751 | #endif |
587 | ) |
752 | ) |
588 | ) |
753 | ) |
589 | { |
754 | { |
590 | /* emulate sendfile. this is a major pain in the ass */ |
755 | /* emulate sendfile. this is a major pain in the ass */ |
591 | char buf[4096]; |
756 | dBUF; |
|
|
757 | |
592 | res = 0; |
758 | res = 0; |
593 | |
759 | |
594 | while (count) |
760 | while (count) |
595 | { |
761 | { |
596 | ssize_t cnt; |
762 | ssize_t cnt; |
597 | |
763 | |
598 | cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); |
764 | cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); |
599 | |
765 | |
600 | if (cnt <= 0) |
766 | if (cnt <= 0) |
601 | { |
767 | { |
602 | if (cnt && !res) res = -1; |
768 | if (cnt && !res) res = -1; |
603 | break; |
769 | break; |
604 | } |
770 | } |
605 | |
771 | |
606 | cnt = write (ofd, buf, cnt); |
772 | cnt = write (ofd, aio_buf, cnt); |
607 | |
773 | |
608 | if (cnt <= 0) |
774 | if (cnt <= 0) |
609 | { |
775 | { |
610 | if (cnt && !res) res = -1; |
776 | if (cnt && !res) res = -1; |
611 | break; |
777 | break; |
… | |
… | |
613 | |
779 | |
614 | offset += cnt; |
780 | offset += cnt; |
615 | res += cnt; |
781 | res += cnt; |
616 | count -= cnt; |
782 | count -= cnt; |
617 | } |
783 | } |
|
|
784 | |
|
|
785 | fBUF; |
618 | } |
786 | } |
619 | |
787 | |
620 | return res; |
788 | return res; |
621 | } |
789 | } |
622 | |
790 | |
623 | /* read a full directory */ |
791 | /* read a full directory */ |
624 | static int |
|
|
625 | scandir_ (const char *path, void **namesp) |
792 | static int scandir_ (const char *path, void **namesp) |
626 | { |
793 | { |
627 | DIR *dirp = opendir (path); |
794 | DIR *dirp; |
628 | union |
795 | union |
629 | { |
796 | { |
630 | struct dirent d; |
797 | struct dirent d; |
631 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
798 | char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; |
632 | } u; |
799 | } *u; |
633 | struct dirent *entp; |
800 | struct dirent *entp; |
634 | char *name, *names; |
801 | char *name, *names; |
635 | int memlen = 4096; |
802 | int memlen = 4096; |
636 | int memofs = 0; |
803 | int memofs = 0; |
637 | int res = 0; |
804 | int res = 0; |
638 | int errorno; |
805 | int errorno; |
639 | |
806 | |
|
|
807 | dirp = opendir (path); |
640 | if (!dirp) |
808 | if (!dirp) |
641 | return -1; |
809 | return -1; |
642 | |
810 | |
|
|
811 | u = malloc (sizeof (*u)); |
643 | names = malloc (memlen); |
812 | names = malloc (memlen); |
644 | |
813 | |
|
|
814 | if (u && names) |
645 | for (;;) |
815 | for (;;) |
646 | { |
816 | { |
|
|
817 | errno = 0; |
647 | errno = 0, readdir_r (dirp, &u.d, &entp); |
818 | readdir_r (dirp, &u->d, &entp); |
648 | |
819 | |
649 | if (!entp) |
820 | if (!entp) |
650 | break; |
821 | break; |
651 | |
822 | |
652 | name = entp->d_name; |
823 | name = entp->d_name; |
653 | |
824 | |
654 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
825 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
655 | { |
826 | { |
656 | int len = strlen (name) + 1; |
827 | int len = strlen (name) + 1; |
657 | |
828 | |
658 | res++; |
829 | res++; |
659 | |
830 | |
660 | while (memofs + len > memlen) |
831 | while (memofs + len > memlen) |
661 | { |
832 | { |
662 | memlen *= 2; |
833 | memlen *= 2; |
663 | names = realloc (names, memlen); |
834 | names = realloc (names, memlen); |
664 | if (!names) |
835 | if (!names) |
665 | break; |
836 | break; |
666 | } |
837 | } |
667 | |
838 | |
668 | memcpy (names + memofs, name, len); |
839 | memcpy (names + memofs, name, len); |
669 | memofs += len; |
840 | memofs += len; |
670 | } |
841 | } |
671 | } |
842 | } |
672 | |
843 | |
673 | errorno = errno; |
844 | errorno = errno; |
|
|
845 | free (u); |
674 | closedir (dirp); |
846 | closedir (dirp); |
675 | |
847 | |
676 | if (errorno) |
848 | if (errorno) |
677 | { |
849 | { |
678 | free (names); |
850 | free (names); |
… | |
… | |
684 | return res; |
856 | return res; |
685 | } |
857 | } |
686 | |
858 | |
687 | /*****************************************************************************/ |
859 | /*****************************************************************************/ |
688 | |
860 | |
689 | static void * |
|
|
690 | aio_proc (void *thr_arg) |
861 | static void *aio_proc (void *thr_arg) |
691 | { |
862 | { |
692 | aio_req req; |
863 | aio_req req; |
693 | int type; |
864 | int type; |
694 | |
865 | |
695 | do |
866 | do |
696 | { |
867 | { |
697 | pthread_mutex_lock (&reqlock); |
868 | pthread_mutex_lock (&reqlock); |
698 | |
869 | |
699 | for (;;) |
870 | for (;;) |
700 | { |
871 | { |
701 | req = reqs; |
872 | req = reqq_shift (&req_queue); |
702 | |
|
|
703 | if (reqs) |
|
|
704 | { |
|
|
705 | reqs = reqs->next; |
|
|
706 | if (!reqs) reqe = 0; |
|
|
707 | } |
|
|
708 | |
873 | |
709 | if (req) |
874 | if (req) |
710 | break; |
875 | break; |
711 | |
876 | |
712 | pthread_cond_wait (&reqwait, &reqlock); |
877 | pthread_cond_wait (&reqwait, &reqlock); |
713 | } |
878 | } |
714 | |
879 | |
715 | pthread_mutex_unlock (&reqlock); |
880 | pthread_mutex_unlock (&reqlock); |
716 | |
881 | |
717 | errno = 0; /* strictly unnecessary */ |
882 | errno = 0; /* strictly unnecessary */ |
|
|
883 | type = req->type; /* remember type for QUIT check */ |
718 | |
884 | |
719 | if (!req->cancelled) |
885 | if (!(req->flags & FLAG_CANCELLED)) |
720 | switch (req->type) |
886 | switch (type) |
721 | { |
887 | { |
722 | 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; |
723 | 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; |
724 | |
890 | |
725 | 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; |
… | |
… | |
739 | |
905 | |
740 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
906 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
741 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
907 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
742 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
908 | case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; |
743 | |
909 | |
|
|
910 | case REQ_BUSY: |
|
|
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: |
744 | case REQ_QUIT: |
922 | case REQ_QUIT: |
745 | break; |
923 | break; |
746 | |
924 | |
747 | default: |
925 | default: |
748 | req->result = ENOSYS; |
926 | req->result = ENOSYS; |
… | |
… | |
751 | |
929 | |
752 | req->errorno = errno; |
930 | req->errorno = errno; |
753 | |
931 | |
754 | pthread_mutex_lock (&reslock); |
932 | pthread_mutex_lock (&reslock); |
755 | |
933 | |
756 | req->next = 0; |
934 | if (!reqq_push (&res_queue, req)) |
757 | |
|
|
758 | if (rese) |
|
|
759 | { |
|
|
760 | rese->next = req; |
|
|
761 | rese = req; |
|
|
762 | } |
|
|
763 | else |
|
|
764 | { |
|
|
765 | rese = ress = req; |
|
|
766 | |
|
|
767 | /* write a dummy byte to the pipe so fh becomes ready */ |
935 | /* write a dummy byte to the pipe so fh becomes ready */ |
768 | write (respipe [1], &respipe, 1); |
936 | write (respipe [1], &respipe, 1); |
769 | } |
|
|
770 | |
937 | |
771 | pthread_mutex_unlock (&reslock); |
938 | pthread_mutex_unlock (&reslock); |
772 | } |
939 | } |
773 | while (type != REQ_QUIT); |
940 | while (type != REQ_QUIT); |
774 | |
941 | |
… | |
… | |
805 | { |
972 | { |
806 | aio_req prv; |
973 | aio_req prv; |
807 | |
974 | |
808 | started = 0; |
975 | started = 0; |
809 | |
976 | |
810 | while (reqs) |
977 | while (prv = reqq_shift (&req_queue)) |
811 | { |
|
|
812 | prv = reqs; |
|
|
813 | reqs = prv->next; |
|
|
814 | req_free (prv); |
978 | req_free (prv); |
815 | } |
|
|
816 | |
979 | |
817 | reqs = reqe = 0; |
980 | while (prv = reqq_shift (&res_queue)) |
818 | |
|
|
819 | while (ress) |
|
|
820 | { |
|
|
821 | prv = ress; |
|
|
822 | ress = prv->next; |
|
|
823 | req_free (prv); |
981 | req_free (prv); |
824 | } |
982 | |
825 | |
|
|
826 | ress = rese = 0; |
|
|
827 | |
|
|
828 | close (respipe [0]); |
983 | close (respipe [0]); |
829 | close (respipe [1]); |
984 | close (respipe [1]); |
830 | create_pipe (); |
985 | create_pipe (); |
831 | |
986 | |
832 | atfork_parent (); |
987 | atfork_parent (); |
833 | } |
988 | } |
834 | |
989 | |
835 | #define dREQ \ |
990 | #define dREQ \ |
836 | aio_req req; \ |
991 | aio_req req; \ |
|
|
992 | int req_pri = next_pri; \ |
|
|
993 | next_pri = DEFAULT_PRI + PRI_BIAS; \ |
837 | \ |
994 | \ |
838 | if (SvOK (callback) && !SvROK (callback)) \ |
995 | if (SvOK (callback) && !SvROK (callback)) \ |
839 | croak ("callback must be undef or of reference type"); \ |
996 | croak ("callback must be undef or of reference type"); \ |
840 | \ |
997 | \ |
841 | Newz (0, req, 1, aio_cb); \ |
998 | Newz (0, req, 1, aio_cb); \ |
842 | if (!req) \ |
999 | if (!req) \ |
843 | croak ("out of memory during aio_req allocation"); \ |
1000 | croak ("out of memory during aio_req allocation"); \ |
844 | \ |
1001 | \ |
845 | req->callback = newSVsv (callback) |
1002 | req->callback = newSVsv (callback); \ |
|
|
1003 | req->pri = req_pri |
846 | |
1004 | |
847 | #define REQ_SEND \ |
1005 | #define REQ_SEND \ |
848 | req_send (req); \ |
1006 | req_send (req); \ |
849 | \ |
1007 | \ |
850 | if (GIMME_V != G_VOID) \ |
1008 | if (GIMME_V != G_VOID) \ |
851 | XPUSHs (req_sv (req)); |
1009 | XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
852 | |
1010 | |
853 | MODULE = IO::AIO PACKAGE = IO::AIO |
1011 | MODULE = IO::AIO PACKAGE = IO::AIO |
854 | |
1012 | |
855 | PROTOTYPES: ENABLE |
1013 | PROTOTYPES: ENABLE |
856 | |
1014 | |
… | |
… | |
1103 | req->dataptr = SvPVbyte_nolen (req->data); |
1261 | req->dataptr = SvPVbyte_nolen (req->data); |
1104 | |
1262 | |
1105 | REQ_SEND; |
1263 | REQ_SEND; |
1106 | } |
1264 | } |
1107 | |
1265 | |
1108 | #if 0 |
|
|
1109 | |
|
|
1110 | # undocumented, because it does not cancel active requests |
|
|
1111 | void |
1266 | void |
1112 | cancel_most_requests () |
1267 | aio_busy (delay,callback=&PL_sv_undef) |
|
|
1268 | double delay |
|
|
1269 | SV * callback |
|
|
1270 | PPCODE: |
|
|
1271 | { |
|
|
1272 | dREQ; |
|
|
1273 | |
|
|
1274 | req->type = REQ_BUSY; |
|
|
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 |
|
|
1282 | aio_group (callback=&PL_sv_undef) |
|
|
1283 | SV * callback |
1113 | PROTOTYPE: |
1284 | PROTOTYPE: ;$ |
1114 | CODE: |
1285 | PPCODE: |
1115 | { |
1286 | { |
1116 | aio_req *req; |
1287 | dREQ; |
1117 | |
1288 | |
1118 | pthread_mutex_lock (&reqlock); |
1289 | req->type = REQ_GROUP; |
1119 | for (req = reqs; req; req = req->next) |
1290 | req_send (req); |
1120 | req->flags |= 1; |
|
|
1121 | pthread_mutex_unlock (&reqlock); |
|
|
1122 | |
1291 | |
1123 | pthread_mutex_lock (&reslock); |
1292 | XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
1124 | for (req = ress; req; req = req->next) |
|
|
1125 | req->flags |= 1; |
|
|
1126 | pthread_mutex_unlock (&reslock); |
|
|
1127 | } |
1293 | } |
1128 | |
1294 | |
1129 | #endif |
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; |
|
|
1313 | |
|
|
1314 | void |
|
|
1315 | aioreq_nice (int nice = 0) |
|
|
1316 | CODE: |
|
|
1317 | nice = next_pri - nice; |
|
|
1318 | if (nice < PRI_MIN) nice = PRI_MIN; |
|
|
1319 | if (nice > PRI_MAX) nice = PRI_MAX; |
|
|
1320 | next_pri = nice + PRI_BIAS; |
1130 | |
1321 | |
1131 | void |
1322 | void |
1132 | flush () |
1323 | flush () |
1133 | PROTOTYPE: |
1324 | PROTOTYPE: |
1134 | CODE: |
1325 | CODE: |
… | |
… | |
1177 | CODE: |
1368 | CODE: |
1178 | RETVAL = nreqs; |
1369 | RETVAL = nreqs; |
1179 | OUTPUT: |
1370 | OUTPUT: |
1180 | RETVAL |
1371 | RETVAL |
1181 | |
1372 | |
|
|
1373 | PROTOTYPES: DISABLE |
|
|
1374 | |
1182 | MODULE = IO::AIO PACKAGE = IO::AIO::CB |
1375 | MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1183 | |
1376 | |
1184 | void |
1377 | void |
1185 | cancel (aio_req_ornot req) |
1378 | cancel (aio_req_ornot req) |
1186 | PROTOTYPE: |
|
|
1187 | CODE: |
1379 | CODE: |
1188 | req->cancelled = 1; |
1380 | req_cancel (req); |
1189 | |
1381 | |
|
|
1382 | void |
|
|
1383 | cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
|
|
1384 | CODE: |
|
|
1385 | SvREFCNT_dec (req->callback); |
|
|
1386 | req->callback = newSVsv (callback); |
|
|
1387 | |
|
|
1388 | MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
|
|
1389 | |
|
|
1390 | void |
|
|
1391 | add (aio_req grp, ...) |
|
|
1392 | PPCODE: |
|
|
1393 | { |
|
|
1394 | int i; |
|
|
1395 | aio_req req; |
|
|
1396 | |
|
|
1397 | if (grp->fd == 2) |
|
|
1398 | croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
|
|
1399 | |
|
|
1400 | for (i = 1; i < items; ++i ) |
|
|
1401 | { |
|
|
1402 | if (GIMME_V != G_VOID) |
|
|
1403 | XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
|
|
1404 | |
|
|
1405 | req = SvAIO_REQ (ST (i)); |
|
|
1406 | |
|
|
1407 | if (req) |
|
|
1408 | { |
|
|
1409 | ++grp->length; |
|
|
1410 | req->grp = grp; |
|
|
1411 | |
|
|
1412 | req->grp_prev = 0; |
|
|
1413 | req->grp_next = grp->grp_first; |
|
|
1414 | |
|
|
1415 | if (grp->grp_first) |
|
|
1416 | grp->grp_first->grp_prev = req; |
|
|
1417 | |
|
|
1418 | grp->grp_first = req; |
|
|
1419 | } |
|
|
1420 | } |
|
|
1421 | } |
|
|
1422 | |
|
|
1423 | void |
|
|
1424 | result (aio_req grp, ...) |
|
|
1425 | CODE: |
|
|
1426 | { |
|
|
1427 | int i; |
|
|
1428 | AV *av = newAV (); |
|
|
1429 | |
|
|
1430 | for (i = 1; i < items; ++i ) |
|
|
1431 | av_push (av, newSVsv (ST (i))); |
|
|
1432 | |
|
|
1433 | SvREFCNT_dec (grp->data); |
|
|
1434 | grp->data = (SV *)av; |
|
|
1435 | } |
|
|
1436 | |
|
|
1437 | void |
|
|
1438 | limit (aio_req grp, int limit) |
|
|
1439 | CODE: |
|
|
1440 | grp->fd2 = limit; |
|
|
1441 | aio_grp_feed (grp); |
|
|
1442 | |
|
|
1443 | void |
|
|
1444 | feed (aio_req grp, SV *callback=&PL_sv_undef) |
|
|
1445 | CODE: |
|
|
1446 | { |
|
|
1447 | SvREFCNT_dec (grp->fh2); |
|
|
1448 | grp->fh2 = newSVsv (callback); |
|
|
1449 | |
|
|
1450 | if (grp->fd2 <= 0) |
|
|
1451 | grp->fd2 = 2; |
|
|
1452 | |
|
|
1453 | aio_grp_feed (grp); |
|
|
1454 | } |
|
|
1455 | |