1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
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5 | #include "autoconf/config.h" |
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6 | |
5 | #include <sys/types.h> |
7 | #include <sys/types.h> |
6 | #include <sys/stat.h> |
8 | #include <sys/stat.h> |
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9 | |
7 | #include <unistd.h> |
10 | #include <unistd.h> |
8 | #include <fcntl.h> |
11 | #include <fcntl.h> |
9 | #include <signal.h> |
12 | #include <signal.h> |
10 | #include <sched.h> |
13 | #include <sched.h> |
11 | #include <endian.h> |
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12 | |
14 | |
13 | #include <pthread.h> |
15 | #include <pthread.h> |
14 | #include <sys/syscall.h> |
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15 | |
16 | |
16 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
17 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
17 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
18 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
18 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
19 | |
20 | |
… | |
… | |
40 | off_t offset; |
41 | off_t offset; |
41 | size_t length; |
42 | size_t length; |
42 | ssize_t result; |
43 | ssize_t result; |
43 | mode_t mode; /* open */ |
44 | mode_t mode; /* open */ |
44 | int errorno; |
45 | int errorno; |
45 | SV *data, *callback; |
46 | SV *data, *callback, *fh; |
46 | void *dataptr; |
47 | void *dataptr; |
47 | STRLEN dataoffset; |
48 | STRLEN dataoffset; |
48 | |
49 | |
49 | Stat_t *statdata; |
50 | Stat_t *statdata; |
50 | } aio_cb; |
51 | } aio_cb; |
51 | |
52 | |
52 | typedef aio_cb *aio_req; |
53 | typedef aio_cb *aio_req; |
53 | |
54 | |
54 | static int started; |
55 | static int started; |
55 | static int nreqs; |
56 | static volatile int nreqs; |
56 | static int max_outstanding = 1<<30; |
57 | static int max_outstanding = 1<<30; |
57 | static int respipe [2]; |
58 | static int respipe [2]; |
58 | |
59 | |
59 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
60 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
60 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
61 | static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER; |
… | |
… | |
64 | static volatile aio_req ress, rese; /* queue start, queue end */ |
65 | static volatile aio_req ress, rese; /* queue start, queue end */ |
65 | |
66 | |
66 | static void |
67 | static void |
67 | poll_wait () |
68 | poll_wait () |
68 | { |
69 | { |
69 | if (!nreqs) |
70 | if (nreqs && !ress) |
70 | return; |
71 | { |
71 | |
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72 | fd_set rfd; |
72 | fd_set rfd; |
73 | FD_ZERO(&rfd); |
73 | FD_ZERO(&rfd); |
74 | FD_SET(respipe [0], &rfd); |
74 | FD_SET(respipe [0], &rfd); |
75 | |
75 | |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
76 | select (respipe [0] + 1, &rfd, 0, 0, 0); |
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77 | } |
77 | } |
78 | } |
78 | |
79 | |
79 | static int |
80 | static int |
80 | poll_cb () |
81 | poll_cb () |
81 | { |
82 | { |
82 | dSP; |
83 | dSP; |
83 | int count = 0; |
84 | int count = 0; |
84 | aio_req req; |
85 | aio_req req, prv; |
85 | |
86 | |
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87 | pthread_mutex_lock (&reslock); |
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88 | |
86 | { |
89 | { |
87 | /* read and signals sent by the worker threads */ |
90 | /* read any signals sent by the worker threads */ |
88 | char buf [32]; |
91 | char buf [32]; |
89 | while (read (respipe [0], buf, 32) > 0) |
92 | while (read (respipe [0], buf, 32) > 0) |
90 | ; |
93 | ; |
91 | } |
94 | } |
92 | |
95 | |
93 | for (;;) |
96 | req = ress; |
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97 | ress = rese = 0; |
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98 | |
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99 | pthread_mutex_unlock (&reslock); |
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100 | |
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101 | while (req) |
94 | { |
102 | { |
95 | pthread_mutex_lock (&reslock); |
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96 | |
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97 | req = ress; |
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98 | |
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99 | if (ress) |
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100 | { |
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101 | ress = ress->next; |
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102 | if (!ress) rese = 0; |
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103 | } |
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104 | |
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105 | pthread_mutex_unlock (&reslock); |
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106 | |
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107 | if (!req) |
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108 | break; |
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109 | |
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110 | nreqs--; |
103 | nreqs--; |
111 | |
104 | |
112 | if (req->type == REQ_QUIT) |
105 | if (req->type == REQ_QUIT) |
113 | started--; |
106 | started--; |
114 | else |
107 | else |
… | |
… | |
121 | + req->result > 0 ? req->result : 0); |
114 | + req->result > 0 ? req->result : 0); |
122 | |
115 | |
123 | if (req->data) |
116 | if (req->data) |
124 | SvREFCNT_dec (req->data); |
117 | SvREFCNT_dec (req->data); |
125 | |
118 | |
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119 | if (req->fh) |
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120 | SvREFCNT_dec (req->fh); |
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121 | |
126 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
122 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
127 | { |
123 | { |
128 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
124 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
129 | PL_laststatval = req->result; |
125 | PL_laststatval = req->result; |
130 | PL_statcache = *(req->statdata); |
126 | PL_statcache = *(req->statdata); |
131 | |
127 | |
132 | Safefree (req->statdata); |
128 | Safefree (req->statdata); |
133 | } |
129 | } |
134 | |
130 | |
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131 | ENTER; |
135 | PUSHMARK (SP); |
132 | PUSHMARK (SP); |
136 | XPUSHs (sv_2mortal (newSViv (req->result))); |
133 | XPUSHs (sv_2mortal (newSViv (req->result))); |
137 | |
134 | |
138 | if (req->type == REQ_OPEN) |
135 | if (req->type == REQ_OPEN) |
139 | { |
136 | { |
… | |
… | |
142 | |
139 | |
143 | PUTBACK; |
140 | PUTBACK; |
144 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
141 | call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); |
145 | SPAGAIN; |
142 | SPAGAIN; |
146 | |
143 | |
147 | fh = POPs; |
144 | fh = SvREFCNT_inc (POPs); |
148 | |
145 | |
149 | PUSHMARK (SP); |
146 | PUSHMARK (SP); |
150 | XPUSHs (fh); |
147 | XPUSHs (sv_2mortal (fh)); |
151 | } |
148 | } |
152 | |
149 | |
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150 | if (SvOK (req->callback)) |
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151 | { |
153 | PUTBACK; |
152 | PUTBACK; |
154 | call_sv (req->callback, G_VOID | G_EVAL); |
153 | call_sv (req->callback, G_VOID | G_EVAL); |
155 | SPAGAIN; |
154 | SPAGAIN; |
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155 | } |
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156 | |
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157 | LEAVE; |
156 | |
158 | |
157 | if (req->callback) |
159 | if (req->callback) |
158 | SvREFCNT_dec (req->callback); |
160 | SvREFCNT_dec (req->callback); |
159 | |
161 | |
160 | errno = errorno; |
162 | errno = errorno; |
161 | count++; |
163 | count++; |
162 | } |
164 | } |
163 | |
165 | |
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166 | prv = req; |
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167 | req = req->next; |
164 | Safefree (req); |
168 | Safefree (prv); |
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169 | |
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170 | /* TODO: croak on errors? */ |
165 | } |
171 | } |
166 | |
172 | |
167 | return count; |
173 | return count; |
168 | } |
174 | } |
169 | |
175 | |
… | |
… | |
224 | req->type = REQ_QUIT; |
230 | req->type = REQ_QUIT; |
225 | |
231 | |
226 | send_req (req); |
232 | send_req (req); |
227 | } |
233 | } |
228 | |
234 | |
229 | static void |
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230 | read_write (int dowrite, int fd, off_t offset, size_t length, |
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231 | SV *data, STRLEN dataoffset, SV *callback) |
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232 | { |
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233 | aio_req req; |
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234 | STRLEN svlen; |
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235 | char *svptr = SvPV (data, svlen); |
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236 | |
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237 | SvUPGRADE (data, SVt_PV); |
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238 | SvPOK_on (data); |
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239 | |
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240 | if (dataoffset < 0) |
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241 | dataoffset += svlen; |
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242 | |
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243 | if (dataoffset < 0 || dataoffset > svlen) |
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244 | croak ("data offset outside of string"); |
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245 | |
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246 | if (dowrite) |
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247 | { |
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248 | /* write: check length and adjust. */ |
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249 | if (length < 0 || length + dataoffset > svlen) |
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250 | length = svlen - dataoffset; |
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251 | } |
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252 | else |
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253 | { |
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254 | /* read: grow scalar as necessary */ |
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255 | svptr = SvGROW (data, length + dataoffset); |
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256 | } |
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257 | |
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258 | if (length < 0) |
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259 | croak ("length must not be negative"); |
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260 | |
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261 | Newz (0, req, 1, aio_cb); |
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262 | |
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263 | if (!req) |
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264 | croak ("out of memory during aio_req allocation"); |
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265 | |
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266 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
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267 | req->fd = fd; |
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268 | req->offset = offset; |
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269 | req->length = length; |
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270 | req->data = SvREFCNT_inc (data); |
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271 | req->dataptr = (char *)svptr + dataoffset; |
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272 | req->callback = SvREFCNT_inc (callback); |
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273 | |
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274 | send_req (req); |
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275 | } |
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276 | |
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277 | static void * |
235 | static void * |
278 | aio_proc (void *thr_arg) |
236 | aio_proc (void *thr_arg) |
279 | { |
237 | { |
280 | aio_req req; |
238 | aio_req req; |
281 | int type; |
239 | int type; |
… | |
… | |
306 | |
264 | |
307 | type = req->type; |
265 | type = req->type; |
308 | |
266 | |
309 | switch (type) |
267 | switch (type) |
310 | { |
268 | { |
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269 | #if HAVE_PREADWRITE |
311 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; |
270 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
312 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; |
271 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
313 | #if SYS_readahead |
272 | #else |
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273 | # error "pread/pwrite cannot be emulated, fix your os" |
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274 | #endif |
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275 | |
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276 | #if HAVE_READAHEAD |
314 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
277 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
315 | #else |
278 | #else |
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279 | // TODO: emulate |
316 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
280 | case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break; |
317 | #endif |
281 | #endif |
318 | |
282 | |
319 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
283 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
320 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
284 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
… | |
… | |
322 | |
286 | |
323 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
287 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
324 | case REQ_CLOSE: req->result = close (req->fd); break; |
288 | case REQ_CLOSE: req->result = close (req->fd); break; |
325 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
289 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
326 | |
290 | |
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291 | case REQ_FDATASYNC: |
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292 | #if HAVE_FDATASYNC |
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293 | req->result = fdatasync (req->fd); break; |
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294 | #endif |
327 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
295 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
328 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
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329 | |
296 | |
330 | case REQ_QUIT: |
297 | case REQ_QUIT: |
331 | break; |
298 | break; |
332 | |
299 | |
333 | default: |
300 | default: |
… | |
… | |
361 | return 0; |
328 | return 0; |
362 | } |
329 | } |
363 | |
330 | |
364 | MODULE = IO::AIO PACKAGE = IO::AIO |
331 | MODULE = IO::AIO PACKAGE = IO::AIO |
365 | |
332 | |
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333 | PROTOTYPES: ENABLE |
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334 | |
366 | BOOT: |
335 | BOOT: |
367 | { |
336 | { |
368 | if (pipe (respipe)) |
337 | if (pipe (respipe)) |
369 | croak ("unable to initialize result pipe"); |
338 | croak ("unable to initialize result pipe"); |
370 | |
339 | |
… | |
… | |
410 | CODE: |
379 | CODE: |
411 | RETVAL = max_outstanding; |
380 | RETVAL = max_outstanding; |
412 | max_outstanding = nreqs; |
381 | max_outstanding = nreqs; |
413 | |
382 | |
414 | void |
383 | void |
415 | aio_open(pathname,flags,mode,callback) |
384 | aio_open(pathname,flags,mode,callback=&PL_sv_undef) |
416 | SV * pathname |
385 | SV * pathname |
417 | int flags |
386 | int flags |
418 | int mode |
387 | int mode |
419 | SV * callback |
388 | SV * callback |
420 | PROTOTYPE: $$$$ |
389 | PROTOTYPE: $$$;$ |
421 | CODE: |
390 | CODE: |
422 | { |
391 | { |
423 | aio_req req; |
392 | aio_req req; |
424 | |
393 | |
425 | Newz (0, req, 1, aio_cb); |
394 | Newz (0, req, 1, aio_cb); |
… | |
… | |
436 | |
405 | |
437 | send_req (req); |
406 | send_req (req); |
438 | } |
407 | } |
439 | |
408 | |
440 | void |
409 | void |
441 | aio_close(fh,callback) |
410 | aio_close(fh,callback=&PL_sv_undef) |
442 | InputStream fh |
411 | SV * fh |
443 | SV * callback |
412 | SV * callback |
444 | PROTOTYPE: $$ |
413 | PROTOTYPE: $;$ |
445 | ALIAS: |
414 | ALIAS: |
446 | aio_close = REQ_CLOSE |
415 | aio_close = REQ_CLOSE |
447 | aio_fsync = REQ_FSYNC |
416 | aio_fsync = REQ_FSYNC |
448 | aio_fdatasync = REQ_FDATASYNC |
417 | aio_fdatasync = REQ_FDATASYNC |
449 | CODE: |
418 | CODE: |
… | |
… | |
454 | |
423 | |
455 | if (!req) |
424 | if (!req) |
456 | croak ("out of memory during aio_req allocation"); |
425 | croak ("out of memory during aio_req allocation"); |
457 | |
426 | |
458 | req->type = ix; |
427 | req->type = ix; |
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428 | req->fh = newSVsv (fh); |
459 | req->fd = PerlIO_fileno (fh); |
429 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
460 | req->callback = SvREFCNT_inc (callback); |
430 | req->callback = SvREFCNT_inc (callback); |
461 | |
431 | |
462 | send_req (req); |
432 | send_req (req); |
463 | } |
433 | } |
464 | |
434 | |
465 | void |
435 | void |
466 | aio_read(fh,offset,length,data,dataoffset,callback) |
436 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
467 | InputStream fh |
437 | SV * fh |
468 | UV offset |
438 | UV offset |
469 | IV length |
439 | IV length |
470 | SV * data |
440 | SV * data |
471 | IV dataoffset |
441 | IV dataoffset |
472 | SV * callback |
442 | SV * callback |
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443 | ALIAS: |
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444 | aio_read = REQ_READ |
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445 | aio_write = REQ_WRITE |
473 | PROTOTYPE: $$$$$$ |
446 | PROTOTYPE: $$$$$;$ |
474 | CODE: |
447 | CODE: |
475 | read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
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476 | |
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477 | void |
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478 | aio_write(fh,offset,length,data,dataoffset,callback) |
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479 | OutputStream fh |
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480 | UV offset |
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481 | IV length |
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482 | SV * data |
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483 | IV dataoffset |
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484 | SV * callback |
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485 | PROTOTYPE: $$$$$$ |
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486 | CODE: |
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487 | read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
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488 | |
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489 | void |
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490 | aio_readahead(fh,offset,length,callback) |
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491 | InputStream fh |
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492 | UV offset |
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493 | IV length |
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494 | SV * callback |
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495 | PROTOTYPE: $$$$ |
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496 | CODE: |
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497 | { |
448 | { |
498 | aio_req req; |
449 | aio_req req; |
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450 | STRLEN svlen; |
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451 | char *svptr = SvPV (data, svlen); |
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452 | |
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453 | SvUPGRADE (data, SVt_PV); |
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454 | SvPOK_on (data); |
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455 | |
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456 | if (dataoffset < 0) |
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457 | dataoffset += svlen; |
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458 | |
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459 | if (dataoffset < 0 || dataoffset > svlen) |
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460 | croak ("data offset outside of string"); |
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461 | |
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462 | if (ix == REQ_WRITE) |
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463 | { |
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464 | /* write: check length and adjust. */ |
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465 | if (length < 0 || length + dataoffset > svlen) |
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466 | length = svlen - dataoffset; |
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467 | } |
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468 | else |
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469 | { |
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470 | /* read: grow scalar as necessary */ |
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471 | svptr = SvGROW (data, length + dataoffset); |
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472 | } |
499 | |
473 | |
500 | if (length < 0) |
474 | if (length < 0) |
501 | croak ("length must not be negative"); |
475 | croak ("length must not be negative"); |
502 | |
476 | |
503 | Newz (0, req, 1, aio_cb); |
477 | Newz (0, req, 1, aio_cb); |
504 | |
478 | |
505 | if (!req) |
479 | if (!req) |
506 | croak ("out of memory during aio_req allocation"); |
480 | croak ("out of memory during aio_req allocation"); |
507 | |
481 | |
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482 | req->type = ix; |
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483 | req->fh = newSVsv (fh); |
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484 | req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) |
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485 | : IoOFP (sv_2io (fh))); |
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486 | req->offset = offset; |
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487 | req->length = length; |
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488 | req->data = SvREFCNT_inc (data); |
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489 | req->dataptr = (char *)svptr + dataoffset; |
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490 | req->callback = SvREFCNT_inc (callback); |
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491 | |
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492 | send_req (req); |
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493 | } |
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494 | |
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495 | void |
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496 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
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497 | SV * fh |
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498 | UV offset |
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499 | IV length |
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500 | SV * callback |
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501 | PROTOTYPE: $$$;$ |
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502 | CODE: |
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503 | { |
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504 | aio_req req; |
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505 | |
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506 | if (length < 0) |
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507 | croak ("length must not be negative"); |
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508 | |
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509 | Newz (0, req, 1, aio_cb); |
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510 | |
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511 | if (!req) |
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512 | croak ("out of memory during aio_req allocation"); |
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513 | |
508 | req->type = REQ_READAHEAD; |
514 | req->type = REQ_READAHEAD; |
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515 | req->fh = newSVsv (fh); |
509 | req->fd = PerlIO_fileno (fh); |
516 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); |
510 | req->offset = offset; |
517 | req->offset = offset; |
511 | req->length = length; |
518 | req->length = length; |
512 | req->callback = SvREFCNT_inc (callback); |
519 | req->callback = SvREFCNT_inc (callback); |
513 | |
520 | |
514 | send_req (req); |
521 | send_req (req); |
515 | } |
522 | } |
516 | |
523 | |
517 | void |
524 | void |
518 | aio_stat(fh_or_path,callback) |
525 | aio_stat(fh_or_path,callback=&PL_sv_undef) |
519 | SV * fh_or_path |
526 | SV * fh_or_path |
520 | SV * callback |
527 | SV * callback |
521 | PROTOTYPE: $$ |
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522 | ALIAS: |
528 | ALIAS: |
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529 | aio_stat = REQ_STAT |
523 | aio_lstat = 1 |
530 | aio_lstat = REQ_LSTAT |
524 | CODE: |
531 | CODE: |
525 | { |
532 | { |
526 | aio_req req; |
533 | aio_req req; |
527 | |
534 | |
528 | Newz (0, req, 1, aio_cb); |
535 | Newz (0, req, 1, aio_cb); |
… | |
… | |
535 | if (!req->statdata) |
542 | if (!req->statdata) |
536 | croak ("out of memory during aio_req->statdata allocation"); |
543 | croak ("out of memory during aio_req->statdata allocation"); |
537 | |
544 | |
538 | if (SvPOK (fh_or_path)) |
545 | if (SvPOK (fh_or_path)) |
539 | { |
546 | { |
540 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
547 | req->type = ix; |
541 | req->data = newSVsv (fh_or_path); |
548 | req->data = newSVsv (fh_or_path); |
542 | req->dataptr = SvPV_nolen (req->data); |
549 | req->dataptr = SvPV_nolen (req->data); |
543 | } |
550 | } |
544 | else |
551 | else |
545 | { |
552 | { |
546 | req->type = REQ_FSTAT; |
553 | req->type = REQ_FSTAT; |
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554 | req->fh = newSVsv (fh_or_path); |
547 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
555 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
548 | } |
556 | } |
549 | |
557 | |
550 | req->callback = SvREFCNT_inc (callback); |
558 | req->callback = SvREFCNT_inc (callback); |
551 | |
559 | |
552 | send_req (req); |
560 | send_req (req); |
553 | } |
561 | } |
554 | |
562 | |
555 | void |
563 | void |
556 | aio_unlink(pathname,callback) |
564 | aio_unlink(pathname,callback=&PL_sv_undef) |
557 | SV * pathname |
565 | SV * pathname |
558 | SV * callback |
566 | SV * callback |
559 | PROTOTYPE: $$ |
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560 | CODE: |
567 | CODE: |
561 | { |
568 | { |
562 | aio_req req; |
569 | aio_req req; |
563 | |
570 | |
564 | Newz (0, req, 1, aio_cb); |
571 | Newz (0, req, 1, aio_cb); |
… | |
… | |
582 | { |
589 | { |
583 | poll_wait (); |
590 | poll_wait (); |
584 | poll_cb (); |
591 | poll_cb (); |
585 | } |
592 | } |
586 | |
593 | |
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594 | void |
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595 | poll() |
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596 | PROTOTYPE: |
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597 | CODE: |
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598 | if (nreqs) |
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599 | { |
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600 | poll_wait (); |
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601 | poll_cb (); |
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602 | } |
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603 | |
587 | int |
604 | int |
588 | poll_fileno() |
605 | poll_fileno() |
589 | PROTOTYPE: |
606 | PROTOTYPE: |
590 | CODE: |
607 | CODE: |
591 | RETVAL = respipe [0]; |
608 | RETVAL = respipe [0]; |