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