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1 | #define PERL_NO_GET_CONTEXT |
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2 | |
1 | #include "EXTERN.h" |
3 | #include "EXTERN.h" |
2 | #include "perl.h" |
4 | #include "perl.h" |
3 | #include "XSUB.h" |
5 | #include "XSUB.h" |
4 | |
6 | |
5 | #include <sys/types.h> |
7 | #include <sys/types.h> |
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8 | #include <sys/stat.h> |
6 | #include <unistd.h> |
9 | #include <unistd.h> |
7 | #include <fcntl.h> |
10 | #include <fcntl.h> |
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11 | #include <signal.h> |
8 | #include <sched.h> |
12 | #include <sched.h> |
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13 | #include <endian.h> |
9 | |
14 | |
10 | #define STACKSIZE 1024 /* yeah */ |
15 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
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16 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
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17 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
11 | |
18 | |
12 | #define REQ_QUIT 0 |
19 | #if __i386 || __amd64 |
13 | #define REQ_READ 1 |
20 | # define STACKSIZE ( 256 * sizeof (long)) |
14 | #define REQ_WRITE 2 |
21 | #elif __ia64 |
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22 | # define STACKSIZE (8192 * sizeof (long)) |
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23 | #else |
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24 | # define STACKSIZE ( 512 * sizeof (long)) |
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25 | #endif |
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26 | |
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27 | enum { |
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28 | REQ_QUIT, |
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29 | REQ_OPEN, REQ_CLOSE, |
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30 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
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31 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK, |
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32 | REQ_FSYNC, REQ_FDATASYNC, |
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33 | }; |
15 | |
34 | |
16 | typedef struct { |
35 | typedef struct { |
17 | char stack[STACKSIZE]; |
36 | char stack[STACKSIZE]; |
18 | } aio_thread; |
37 | } aio_thread; |
19 | |
38 | |
20 | typedef struct { |
39 | typedef struct aio_cb { |
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40 | struct aio_cb *next; |
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41 | |
21 | int type; |
42 | int type; |
22 | aio_thread *thread; |
43 | aio_thread *thread; |
23 | |
44 | |
24 | /* read/write */ |
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25 | int fd; |
45 | int fd; |
26 | off_t offset; |
46 | off_t offset; |
27 | size_t length; |
47 | size_t length; |
28 | ssize_t result; |
48 | ssize_t result; |
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49 | mode_t mode; /* open */ |
29 | int errorno; |
50 | int errorno; |
30 | |
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31 | SV *data, *callback; |
51 | SV *data, *callback; |
32 | void *dataptr; |
52 | void *dataptr; |
33 | STRLEN dataoffset; |
53 | STRLEN dataoffset; |
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54 | |
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55 | Stat_t *statdata; |
34 | } aio_cb; |
56 | } aio_cb; |
35 | |
57 | |
36 | typedef aio_cb *aio_req; |
58 | typedef aio_cb *aio_req; |
37 | |
59 | |
38 | static int started; |
60 | static int started; |
39 | static int nreqs; |
61 | static int nreqs; |
40 | static int reqpipe[2], respipe[2]; |
62 | static int reqpipe[2], respipe[2]; |
41 | |
63 | |
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64 | static aio_req qs, qe; /* queue start, queue end */ |
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65 | |
42 | static int aio_proc(void *arg); |
66 | static int aio_proc(void *arg); |
43 | |
67 | |
44 | static void |
68 | static void |
45 | start_thread(void) |
69 | start_thread (void) |
46 | { |
70 | { |
47 | aio_thread *thr; |
71 | aio_thread *thr; |
48 | |
72 | |
49 | New (0, thr, 1, aio_thread); |
73 | New (0, thr, 1, aio_thread); |
50 | |
74 | |
51 | if (clone (aio_proc, |
75 | if (clone (aio_proc, |
52 | &(thr->stack[STACKSIZE]), |
76 | &(thr->stack[STACKSIZE - 16]), |
53 | CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND, |
77 | CLONE_VM|CLONE_FS|CLONE_FILES, |
54 | thr) >= 0) |
78 | thr) >= 0) |
55 | started++; |
79 | started++; |
56 | else |
80 | else |
57 | Safefree (thr); |
81 | Safefree (thr); |
58 | } |
82 | } |
59 | |
83 | |
60 | static void |
84 | static void |
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85 | send_reqs (void) |
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86 | { |
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87 | /* this write is atomic */ |
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88 | while (qs && write (reqpipe[1], &qs, sizeof qs) == sizeof qs) |
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89 | { |
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90 | qs = qs->next; |
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91 | if (!qs) qe = 0; |
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92 | } |
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93 | } |
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94 | |
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95 | static void |
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96 | send_req (aio_req req) |
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97 | { |
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98 | nreqs++; |
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99 | req->next = 0; |
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100 | |
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101 | if (qe) |
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102 | { |
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103 | qe->next = req; |
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104 | qe = req; |
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105 | } |
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106 | else |
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107 | qe = qs = req; |
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108 | |
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109 | send_reqs (); |
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110 | } |
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111 | |
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112 | static void |
61 | end_thread(void) |
113 | end_thread (void) |
62 | { |
114 | { |
63 | aio_req req; |
115 | aio_req req; |
64 | New (0, req, 1, aio_cb); |
116 | New (0, req, 1, aio_cb); |
65 | req->type = REQ_QUIT; |
117 | req->type = REQ_QUIT; |
66 | write (reqpipe[1], &req, sizeof (aio_req)); |
118 | |
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119 | send_req (req); |
67 | } |
120 | } |
68 | |
121 | |
69 | static void |
122 | static void |
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123 | read_write (pTHX_ |
70 | read_write (pTHX_ int dowrite, int fd, off_t offset, size_t length, |
124 | int dowrite, int fd, off_t offset, size_t length, |
71 | SV *data, STRLEN dataoffset, SV*callback) |
125 | SV *data, STRLEN dataoffset, SV *callback) |
72 | { |
126 | { |
73 | aio_req req; |
127 | aio_req req; |
74 | STRLEN svlen; |
128 | STRLEN svlen; |
75 | char *svptr = SvPV (data, svlen); |
129 | char *svptr = SvPV (data, svlen); |
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130 | |
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131 | SvUPGRADE (data, SVt_PV); |
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132 | SvPOK_on (data); |
76 | |
133 | |
77 | if (dataoffset < 0) |
134 | if (dataoffset < 0) |
78 | dataoffset += svlen; |
135 | dataoffset += svlen; |
79 | |
136 | |
80 | if (dataoffset < 0 || dataoffset > svlen) |
137 | if (dataoffset < 0 || dataoffset > svlen) |
… | |
… | |
93 | } |
150 | } |
94 | |
151 | |
95 | if (length < 0) |
152 | if (length < 0) |
96 | croak ("length must not be negative"); |
153 | croak ("length must not be negative"); |
97 | |
154 | |
98 | New (0, req, 1, aio_cb); |
155 | Newz (0, req, 1, aio_cb); |
99 | |
156 | |
100 | if (!req) |
157 | if (!req) |
101 | croak ("out of memory during aio_req allocation"); |
158 | croak ("out of memory during aio_req allocation"); |
102 | |
159 | |
103 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
160 | req->type = dowrite ? REQ_WRITE : REQ_READ; |
104 | req->fd = fd; |
161 | req->fd = fd; |
105 | req->offset = offset; |
162 | req->offset = offset; |
106 | req->length = length; |
163 | req->length = length; |
107 | req->data = SvREFCNT_inc (data); |
164 | req->data = SvREFCNT_inc (data); |
108 | req->dataptr = svptr + dataoffset; |
165 | req->dataptr = (char *)svptr + dataoffset; |
109 | req->callback = SvREFCNT_inc (callback); |
166 | req->callback = SvREFCNT_inc (callback); |
110 | |
167 | |
111 | nreqs++; |
168 | send_req (req); |
112 | write (reqpipe[1], &req, sizeof (aio_req)); |
169 | } |
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170 | |
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171 | static void |
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172 | poll_wait () |
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173 | { |
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174 | if (!nreqs) |
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175 | return; |
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176 | |
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177 | fd_set rfd; |
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178 | FD_ZERO(&rfd); |
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179 | FD_SET(respipe[0], &rfd); |
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180 | |
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181 | select (respipe[0] + 1, &rfd, 0, 0, 0); |
113 | } |
182 | } |
114 | |
183 | |
115 | static int |
184 | static int |
116 | poll_cb (pTHX) |
185 | poll_cb (pTHX) |
117 | { |
186 | { |
… | |
… | |
119 | int count = 0; |
188 | int count = 0; |
120 | aio_req req; |
189 | aio_req req; |
121 | |
190 | |
122 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
191 | while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
123 | { |
192 | { |
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193 | nreqs--; |
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194 | |
124 | if (req->type == REQ_QUIT) |
195 | if (req->type == REQ_QUIT) |
125 | { |
196 | { |
126 | Safefree (req->thread); |
197 | Safefree (req->thread); |
127 | started--; |
198 | started--; |
128 | } |
199 | } |
… | |
… | |
130 | { |
201 | { |
131 | int errorno = errno; |
202 | int errorno = errno; |
132 | errno = req->errorno; |
203 | errno = req->errorno; |
133 | |
204 | |
134 | if (req->type == REQ_READ) |
205 | if (req->type == REQ_READ) |
135 | SvCUR_set (req->data, req->result > 0 |
206 | SvCUR_set (req->data, req->dataoffset |
136 | ? req->dataoffset + req->result |
207 | + req->result > 0 ? req->result : 0); |
137 | : req->dataoffset); |
208 | |
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209 | if (req->data) |
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210 | SvREFCNT_dec (req->data); |
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211 | |
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212 | if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT) |
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213 | { |
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214 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
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215 | PL_laststatval = req->result; |
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216 | PL_statcache = *(req->statdata); |
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217 | |
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218 | Safefree (req->statdata); |
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219 | } |
138 | |
220 | |
139 | PUSHMARK (SP); |
221 | PUSHMARK (SP); |
140 | XPUSHs (sv_2mortal (newSViv (req->result))); |
222 | XPUSHs (sv_2mortal (newSViv (req->result))); |
141 | PUTBACK; |
223 | PUTBACK; |
142 | call_sv (req->callback, G_VOID); |
224 | call_sv (req->callback, G_VOID); |
143 | SPAGAIN; |
225 | SPAGAIN; |
144 | |
226 | |
145 | SvREFCNT_dec (req->data); |
227 | if (req->callback) |
146 | SvREFCNT_dec (req->callback); |
228 | SvREFCNT_dec (req->callback); |
147 | |
229 | |
148 | errno = errorno; |
230 | errno = errorno; |
149 | nreqs--; |
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150 | count++; |
231 | count++; |
151 | } |
232 | } |
152 | |
233 | |
153 | Safefree (req); |
234 | Safefree (req); |
154 | } |
235 | } |
155 | |
236 | |
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237 | if (qs) |
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238 | send_reqs (); |
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239 | |
156 | return count; |
240 | return count; |
157 | } |
241 | } |
158 | |
242 | |
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243 | static sigset_t fullsigset; |
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244 | |
159 | #undef errno |
245 | #undef errno |
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246 | #include <linux/unistd.h> |
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247 | #include <linux/types.h> |
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248 | #include <sys/prctl.h> |
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249 | |
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250 | #if __alpha || __ia64 || __hppa || __v850__ |
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251 | # define stat kernelstat |
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252 | # define stat64 kernelstat64 |
160 | #include <asm/unistd.h> |
253 | # include <asm/stat.h> |
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254 | # undef stat |
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255 | # undef stat64 |
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256 | #else |
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257 | # define kernelstat stat |
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258 | # define kernelstat64 stat64 |
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259 | #endif |
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260 | |
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261 | #define COPY_STATDATA \ |
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262 | req->statdata->st_dev = statdata.st_dev; \ |
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263 | req->statdata->st_ino = statdata.st_ino; \ |
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264 | req->statdata->st_mode = statdata.st_mode; \ |
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265 | req->statdata->st_nlink = statdata.st_nlink; \ |
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266 | req->statdata->st_uid = statdata.st_uid; \ |
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267 | req->statdata->st_gid = statdata.st_gid; \ |
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268 | req->statdata->st_rdev = statdata.st_rdev; \ |
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269 | req->statdata->st_size = statdata.st_size; \ |
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270 | req->statdata->st_atime = statdata.st_atime; \ |
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271 | req->statdata->st_mtime = statdata.st_mtime; \ |
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272 | req->statdata->st_ctime = statdata.st_ctime; \ |
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273 | req->statdata->st_blksize = statdata.st_blksize; \ |
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274 | req->statdata->st_blocks = statdata.st_blocks; \ |
161 | |
275 | |
162 | static int |
276 | static int |
163 | aio_proc(void *thr_arg) |
277 | aio_proc (void *thr_arg) |
164 | { |
278 | { |
165 | aio_thread *thr = thr_arg; |
279 | aio_thread *thr = thr_arg; |
166 | int sig; |
280 | aio_req req; |
167 | int errno; |
281 | int errno; |
168 | aio_req req; |
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169 | |
282 | |
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283 | /* this is very much kernel-specific :(:(:( */ |
170 | /* we rely on gcc's ability to create closures. */ |
284 | /* we rely on gcc's ability to create closures. */ |
171 | _syscall3(int,lseek,int,fd,off_t,offset,int,whence); |
285 | _syscall3(__kernel_size_t, read , unsigned int, fd, char *, buf, __kernel_size_t, count) |
172 | _syscall3(int,read,int,fd,char *,buf,off_t,count); |
286 | _syscall3(__kernel_size_t, write, unsigned int, fd, char *, buf, __kernel_size_t, count) |
173 | _syscall3(int,write,int,fd,char *,buf,off_t,count); |
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174 | |
287 | |
175 | /* first get rid of any signals */ |
288 | _syscall3(long, open, char *, pathname, int, flags, int, mode) |
176 | for (sig = 1; sig < _NSIG; sig++) |
289 | _syscall1(long, close, unsigned int, fd) |
177 | signal (sig, SIG_DFL); |
290 | _syscall1(long, unlink, char *, filename); |
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291 | _syscall1(long, fsync, unsigned int, fd); |
178 | |
292 | |
179 | signal (SIGPIPE, SIG_IGN); |
293 | #ifndef __NR_fdatasync |
180 | |
294 | # define __NR_fdatasync __NR_fsync |
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295 | #endif |
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296 | _syscall1(long, fdatasync, unsigned int, fd); |
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297 | |
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298 | #if BYTE_ORDER == LITTLE_ENDIAN |
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299 | # define LOFF_ARG(off) (off & 0xffffffff), (off >> 32) |
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300 | #elif BYTE_ORDER == BIG_ENDIAN |
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301 | # define LOFF_ARG(off) (off >> 32), (off & 0xffffffff) |
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302 | #endif |
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303 | |
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304 | #ifndef __NR_pread64 |
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305 | # define __NR_pread64 __NR_pread |
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306 | # define __NR_pwrite64 __NR_write |
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307 | #endif |
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308 | _syscall5(__kernel_ssize_t, pread64 , unsigned int, fd, char *, buf, |
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309 | __kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl) |
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310 | _syscall5(__kernel_ssize_t, pwrite64, unsigned int, fd, char *, buf, |
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311 | __kernel_size_t, count, unsigned int, offset_lh, unsigned int, offset_hl) |
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312 | _syscall4(long, readahead, unsigned int, fd, unsigned int, offset_lh, unsigned int, offset_hl, __kernel_size_t, count); |
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313 | |
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314 | #if __NR_stat64 |
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315 | _syscall2(long, stat64 , const char *, filename, struct kernelstat64 *, buf) |
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316 | _syscall2(long, lstat64, const char *, filename, struct kernelstat64 *, buf) |
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317 | _syscall2(long, fstat64, int , fd , struct kernelstat64 *, buf) |
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318 | #elif __NR_stat |
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319 | _syscall2(long, stat , const char *, filename, struct kernelstat *, buf) |
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320 | _syscall2(long, lstat, const char *, filename, struct kernelstat *, buf) |
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321 | _syscall2(long, fstat, int , fd , struct kernelstat *, buf) |
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322 | #else |
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323 | # error "neither stat64 nor stat defined" |
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324 | #endif |
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325 | |
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326 | /* the following two calls might clobber errno */ |
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327 | sigprocmask (SIG_SETMASK, &fullsigset, 0); |
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328 | prctl (PR_SET_PDEATHSIG, SIGKILL); |
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329 | |
181 | /* then loop */ |
330 | /* then loop */ |
182 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
331 | while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req)) |
183 | { |
332 | { |
184 | req->thread = thr; |
333 | req->thread = thr; |
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334 | errno = 0; /* strictly unnecessary */ |
185 | |
335 | |
186 | if (req->type == REQ_READ || req->type == REQ_WRITE) |
336 | switch (req->type) |
187 | { |
337 | { |
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338 | case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break; |
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339 | case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, LOFF_ARG (req->offset)); break; |
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340 | case REQ_READAHEAD: req->result = readahead (req->fd, LOFF_ARG (req->offset), req->length); break; |
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341 | |
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342 | #if __NR_stat64 |
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343 | struct kernelstat64 statdata; |
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344 | case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break; |
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345 | case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break; |
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346 | case REQ_FSTAT: req->result = fstat64 (req->fd , &statdata); COPY_STATDATA; break; |
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347 | #else |
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348 | struct kernelstat statdata; |
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349 | case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break; |
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350 | case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break; |
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351 | case REQ_FSTAT: req->result = fstat (req->fd , &statdata); COPY_STATDATA; break; |
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352 | #endif |
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353 | |
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354 | case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; |
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355 | case REQ_CLOSE: req->result = close (req->fd); break; |
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356 | case REQ_UNLINK: req->result = unlink (req->dataptr); break; |
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357 | |
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358 | case REQ_FSYNC: req->result = fsync (req->fd); break; |
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359 | case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; |
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360 | |
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361 | case REQ_QUIT: |
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362 | write (respipe[1], (void *)&req, sizeof (req)); |
188 | errno = 0; |
363 | return 0; |
189 | |
364 | |
190 | if (lseek (req->fd, req->offset, SEEK_SET) == req->offset) |
365 | default: |
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366 | req->result = ENOSYS; |
191 | { |
367 | break; |
192 | if (req->type == REQ_READ) |
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193 | req->result = read (req->fd, req->dataptr, req->length); |
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194 | else |
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195 | req->result = write(req->fd, req->dataptr, req->length); |
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196 | } |
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197 | |
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198 | req->errorno = errno; |
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199 | } |
368 | } |
200 | else |
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201 | { |
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202 | write (respipe[1], (void *)&req, sizeof (req)); |
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203 | break; |
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204 | } |
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205 | |
369 | |
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370 | req->errorno = errno; |
206 | write (respipe[1], (void *)&req, sizeof (req)); |
371 | write (respipe[1], (void *)&req, sizeof (req)); |
207 | } |
372 | } |
208 | |
373 | |
209 | return 0; |
374 | return 0; |
210 | } |
375 | } |
211 | |
376 | |
212 | MODULE = Linux::AIO PACKAGE = Linux::AIO |
377 | MODULE = Linux::AIO PACKAGE = Linux::AIO |
213 | |
378 | |
214 | BOOT: |
379 | BOOT: |
215 | { |
380 | { |
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381 | sigfillset (&fullsigset); |
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382 | sigdelset (&fullsigset, SIGTERM); |
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383 | sigdelset (&fullsigset, SIGQUIT); |
|
|
384 | sigdelset (&fullsigset, SIGABRT); |
|
|
385 | sigdelset (&fullsigset, SIGINT); |
|
|
386 | |
216 | if (pipe (reqpipe) || pipe (respipe)) |
387 | if (pipe (reqpipe) || pipe (respipe)) |
217 | croak ("unable to initialize request or result pipe"); |
388 | croak ("unable to initialize request or result pipe"); |
|
|
389 | |
|
|
390 | if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK)) |
|
|
391 | croak ("cannot set result pipe to nonblocking mode"); |
218 | |
392 | |
219 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
393 | if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) |
220 | croak ("cannot set result pipe to nonblocking mode"); |
394 | croak ("cannot set result pipe to nonblocking mode"); |
221 | } |
395 | } |
222 | |
396 | |
… | |
… | |
231 | void |
405 | void |
232 | max_parallel(nthreads) |
406 | max_parallel(nthreads) |
233 | int nthreads |
407 | int nthreads |
234 | PROTOTYPE: $ |
408 | PROTOTYPE: $ |
235 | CODE: |
409 | CODE: |
|
|
410 | { |
236 | int cur = started; |
411 | int cur = started; |
237 | while (cur > nthreads) |
412 | while (cur > nthreads) |
238 | { |
413 | { |
239 | end_thread (); |
414 | end_thread (); |
240 | cur--; |
415 | cur--; |
241 | } |
416 | } |
242 | |
417 | |
243 | poll_cb (); |
|
|
244 | while (started > nthreads) |
418 | while (started > nthreads) |
245 | { |
419 | { |
246 | sched_yield (); |
420 | poll_wait (); |
247 | poll_cb (); |
421 | poll_cb (aTHX); |
248 | } |
422 | } |
|
|
423 | } |
|
|
424 | |
|
|
425 | void |
|
|
426 | aio_open(pathname,flags,mode,callback) |
|
|
427 | SV * pathname |
|
|
428 | int flags |
|
|
429 | int mode |
|
|
430 | SV * callback |
|
|
431 | PROTOTYPE: $$$$ |
|
|
432 | CODE: |
|
|
433 | { |
|
|
434 | aio_req req; |
|
|
435 | |
|
|
436 | Newz (0, req, 1, aio_cb); |
|
|
437 | |
|
|
438 | if (!req) |
|
|
439 | croak ("out of memory during aio_req allocation"); |
|
|
440 | |
|
|
441 | req->type = REQ_OPEN; |
|
|
442 | req->data = newSVsv (pathname); |
|
|
443 | req->dataptr = SvPV_nolen (req->data); |
|
|
444 | req->fd = flags; |
|
|
445 | req->mode = mode; |
|
|
446 | req->callback = SvREFCNT_inc (callback); |
|
|
447 | |
|
|
448 | send_req (req); |
|
|
449 | } |
|
|
450 | |
|
|
451 | void |
|
|
452 | aio_close(fh,callback) |
|
|
453 | InputStream fh |
|
|
454 | SV * callback |
|
|
455 | PROTOTYPE: $$ |
|
|
456 | ALIAS: |
|
|
457 | aio_close = REQ_CLOSE |
|
|
458 | aio_fsync = REQ_FSYNC |
|
|
459 | aio_fdatasync = REQ_FDATASYNC |
|
|
460 | CODE: |
|
|
461 | { |
|
|
462 | aio_req req; |
|
|
463 | |
|
|
464 | Newz (0, req, 1, aio_cb); |
|
|
465 | |
|
|
466 | if (!req) |
|
|
467 | croak ("out of memory during aio_req allocation"); |
|
|
468 | |
|
|
469 | req->type = ix; |
|
|
470 | req->fd = PerlIO_fileno (fh); |
|
|
471 | req->callback = SvREFCNT_inc (callback); |
|
|
472 | |
|
|
473 | send_req (req); |
|
|
474 | } |
249 | |
475 | |
250 | void |
476 | void |
251 | aio_read(fh,offset,length,data,dataoffset,callback) |
477 | aio_read(fh,offset,length,data,dataoffset,callback) |
252 | PerlIO * fh |
478 | InputStream fh |
253 | unsigned long offset |
479 | UV offset |
254 | long length |
480 | IV length |
255 | SV * data |
481 | SV * data |
256 | STRLEN dataoffset |
482 | IV dataoffset |
257 | SV * callback |
483 | SV * callback |
258 | PROTOTYPE: $$$$$$ |
484 | PROTOTYPE: $$$$$$ |
259 | ALIAS: |
485 | CODE: |
260 | aio_write = 1 |
|
|
261 | CODE: |
|
|
262 | sv_upgrade (data, SVt_PV); |
|
|
263 | read_write (aTHX_ ix, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
486 | read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
487 | |
|
|
488 | void |
|
|
489 | aio_write(fh,offset,length,data,dataoffset,callback) |
|
|
490 | OutputStream fh |
|
|
491 | UV offset |
|
|
492 | IV length |
|
|
493 | SV * data |
|
|
494 | IV dataoffset |
|
|
495 | SV * callback |
|
|
496 | PROTOTYPE: $$$$$$ |
|
|
497 | CODE: |
|
|
498 | read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback); |
|
|
499 | |
|
|
500 | void |
|
|
501 | aio_readahead(fh,offset,length,callback) |
|
|
502 | InputStream fh |
|
|
503 | UV offset |
|
|
504 | IV length |
|
|
505 | SV * callback |
|
|
506 | PROTOTYPE: $$$$ |
|
|
507 | CODE: |
|
|
508 | { |
|
|
509 | aio_req req; |
|
|
510 | |
|
|
511 | if (length < 0) |
|
|
512 | croak ("length must not be negative"); |
|
|
513 | |
|
|
514 | Newz (0, req, 1, aio_cb); |
|
|
515 | |
|
|
516 | if (!req) |
|
|
517 | croak ("out of memory during aio_req allocation"); |
|
|
518 | |
|
|
519 | req->type = REQ_READAHEAD; |
|
|
520 | req->fd = PerlIO_fileno (fh); |
|
|
521 | req->offset = offset; |
|
|
522 | req->length = length; |
|
|
523 | req->callback = SvREFCNT_inc (callback); |
|
|
524 | |
|
|
525 | send_req (req); |
|
|
526 | } |
|
|
527 | |
|
|
528 | void |
|
|
529 | aio_stat(fh_or_path,callback) |
|
|
530 | SV * fh_or_path |
|
|
531 | SV * callback |
|
|
532 | PROTOTYPE: $$ |
|
|
533 | ALIAS: |
|
|
534 | aio_lstat = 1 |
|
|
535 | CODE: |
|
|
536 | { |
|
|
537 | aio_req req; |
|
|
538 | |
|
|
539 | Newz (0, req, 1, aio_cb); |
|
|
540 | |
|
|
541 | if (!req) |
|
|
542 | croak ("out of memory during aio_req allocation"); |
|
|
543 | |
|
|
544 | New (0, req->statdata, 1, Stat_t); |
|
|
545 | |
|
|
546 | if (!req->statdata) |
|
|
547 | croak ("out of memory during aio_req->statdata allocation"); |
|
|
548 | |
|
|
549 | if (SvPOK (fh_or_path)) |
|
|
550 | { |
|
|
551 | req->type = ix ? REQ_LSTAT : REQ_STAT; |
|
|
552 | req->data = newSVsv (fh_or_path); |
|
|
553 | req->dataptr = SvPV_nolen (req->data); |
|
|
554 | } |
|
|
555 | else |
|
|
556 | { |
|
|
557 | req->type = REQ_FSTAT; |
|
|
558 | req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
|
|
559 | } |
|
|
560 | |
|
|
561 | req->callback = SvREFCNT_inc (callback); |
|
|
562 | |
|
|
563 | send_req (req); |
|
|
564 | } |
|
|
565 | |
|
|
566 | void |
|
|
567 | aio_unlink(pathname,callback) |
|
|
568 | SV * pathname |
|
|
569 | SV * callback |
|
|
570 | PROTOTYPE: $$ |
|
|
571 | CODE: |
|
|
572 | { |
|
|
573 | aio_req req; |
|
|
574 | |
|
|
575 | Newz (0, req, 1, aio_cb); |
|
|
576 | |
|
|
577 | if (!req) |
|
|
578 | croak ("out of memory during aio_req allocation"); |
|
|
579 | |
|
|
580 | req->type = REQ_UNLINK; |
|
|
581 | req->data = newSVsv (pathname); |
|
|
582 | req->dataptr = SvPV_nolen (req->data); |
|
|
583 | req->callback = SvREFCNT_inc (callback); |
|
|
584 | |
|
|
585 | send_req (req); |
|
|
586 | } |
264 | |
587 | |
265 | int |
588 | int |
266 | poll_fileno() |
589 | poll_fileno() |
267 | PROTOTYPE: |
590 | PROTOTYPE: |
268 | CODE: |
591 | CODE: |
269 | RETVAL = respipe[0]; |
592 | RETVAL = respipe[0]; |
270 | OUTPUT: |
593 | OUTPUT: |
271 | RETVAL |
594 | RETVAL |
272 | |
595 | |
273 | int |
596 | int |
274 | poll_cb() |
597 | poll_cb(...) |
275 | PROTOTYPE: |
598 | PROTOTYPE: |
276 | CODE: |
599 | CODE: |
277 | RETVAL = poll_cb (aTHX); |
600 | RETVAL = poll_cb (aTHX); |
278 | OUTPUT: |
601 | OUTPUT: |
279 | RETVAL |
602 | RETVAL |
280 | |
603 | |
|
|
604 | void |
|
|
605 | poll_wait() |
|
|
606 | PROTOTYPE: |
|
|
607 | CODE: |
|
|
608 | poll_wait (); |
|
|
609 | |
281 | int |
610 | int |
282 | nreqs() |
611 | nreqs() |
283 | PROTOTYPE: |
612 | PROTOTYPE: |
284 | CODE: |
613 | CODE: |
285 | RETVAL = nreqs; |
614 | RETVAL = nreqs; |