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4 | |
4 | |
5 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
6 | #include "perl.h" |
6 | #include "perl.h" |
7 | #include "XSUB.h" |
7 | #include "XSUB.h" |
8 | |
8 | |
9 | #include "schmorp.h" |
9 | #if !defined mg_findext |
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10 | # define mg_findext(sv,type,vtbl) mg_find (sv, type) |
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11 | #endif |
10 | |
12 | |
11 | #include <stddef.h> |
13 | #include <stddef.h> |
12 | #include <stdlib.h> |
14 | #include <stdlib.h> |
13 | #include <errno.h> |
15 | #include <errno.h> |
14 | #include <sys/types.h> |
16 | #include <sys/types.h> |
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17 | #include <sys/socket.h> |
15 | #include <sys/stat.h> |
18 | #include <sys/stat.h> |
16 | #include <limits.h> |
19 | #include <limits.h> |
17 | #include <fcntl.h> |
20 | #include <fcntl.h> |
18 | #include <sched.h> |
21 | #include <sched.h> |
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22 | |
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23 | #if HAVE_SYS_SYSMACROS_H |
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24 | # include <sys/sysmacros.h> |
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25 | #endif |
19 | |
26 | |
20 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
27 | #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES |
21 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
22 | #endif |
29 | #endif |
23 | |
30 | |
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104 | #define expect_false(expr) expect ((expr) != 0, 0) |
111 | #define expect_false(expr) expect ((expr) != 0, 0) |
105 | #define expect_true(expr) expect ((expr) != 0, 1) |
112 | #define expect_true(expr) expect ((expr) != 0, 1) |
106 | |
113 | |
107 | /*****************************************************************************/ |
114 | /*****************************************************************************/ |
108 | |
115 | |
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116 | #include "config.h" |
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117 | |
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|
118 | #if HAVE_ST_XTIMENSEC |
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119 | # define ATIMENSEC PL_statcache.st_atimensec |
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120 | # define MTIMENSEC PL_statcache.st_mtimensec |
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121 | # define CTIMENSEC PL_statcache.st_ctimensec |
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122 | #elif HAVE_ST_XTIMESPEC |
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123 | # define ATIMENSEC PL_statcache.st_atim.tv_nsec |
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124 | # define MTIMENSEC PL_statcache.st_mtim.tv_nsec |
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125 | # define CTIMENSEC PL_statcache.st_ctim.tv_nsec |
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126 | #else |
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127 | # define ATIMENSEC 0 |
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128 | # define MTIMENSEC 0 |
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129 | # define CTIMENSEC 0 |
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130 | #endif |
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131 | |
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132 | #include "schmorp.h" |
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133 | |
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134 | #if HAVE_EVENTFD |
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135 | # include <sys/eventfd.h> |
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136 | #endif |
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137 | |
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138 | #if HAVE_TIMERFD |
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139 | # include <sys/timerfd.h> |
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140 | #endif |
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141 | |
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142 | #if HAVE_RLIMITS |
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143 | #include <sys/time.h> |
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144 | #include <sys/resource.h> |
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145 | #endif |
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146 | |
109 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
147 | typedef SV SV8; /* byte-sv, used for argument-checking */ |
110 | typedef int aio_rfd; /* read file desriptor */ |
148 | typedef int aio_rfd; /* read file desriptor */ |
111 | typedef int aio_wfd; /* write file descriptor */ |
149 | typedef int aio_wfd; /* write file descriptor */ |
112 | |
150 | |
113 | static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash; |
151 | static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash; |
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119 | STRLEN stroffset; \ |
157 | STRLEN stroffset; \ |
120 | SV *self; |
158 | SV *self; |
121 | |
159 | |
122 | #define EIO_NO_WRAPPERS 1 |
160 | #define EIO_NO_WRAPPERS 1 |
123 | |
161 | |
124 | #include "libeio/config.h" |
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|
125 | #include "libeio/eio.h" |
162 | #include "libeio/eio.h" |
126 | |
163 | |
127 | static int req_invoke (eio_req *req); |
164 | static int req_invoke (eio_req *req); |
128 | #define EIO_FINISH(req) req_invoke (req) |
165 | #define EIO_FINISH(req) req_invoke (req) |
129 | static void req_destroy (eio_req *grp); |
166 | static void req_destroy (eio_req *grp); |
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145 | # else |
182 | # else |
146 | # define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ |
183 | # define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ |
147 | # endif |
184 | # endif |
148 | #endif |
185 | #endif |
149 | |
186 | |
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187 | #ifndef makedev |
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188 | # define makedev(maj,min) (((maj) << 8) | (min)) |
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189 | #endif |
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190 | #ifndef major |
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191 | # define major(dev) ((dev) >> 8) |
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192 | #endif |
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193 | #ifndef minor |
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194 | # define minor(dev) ((dev) & 0xff) |
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195 | #endif |
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196 | |
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197 | #if PAGESIZE <= 0 |
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198 | # define PAGESIZE sysconf (_SC_PAGESIZE) |
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199 | #endif |
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200 | |
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201 | /*****************************************************************************/ |
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202 | |
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203 | #if !_POSIX_MAPPED_FILES |
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204 | # define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1) |
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205 | # define munmap(addr,length) EIO_ENOSYS () |
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206 | #endif |
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207 | |
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208 | #if !_POSIX_MEMORY_PROTECTION |
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209 | # define mprotect(addr,len,prot) EIO_ENOSYS () |
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210 | #endif |
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211 | |
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212 | #if !MREMAP_MAYMOVE |
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213 | # define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1) |
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214 | #endif |
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215 | |
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216 | #define FOREIGN_MAGIC PERL_MAGIC_ext |
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217 | |
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218 | static int ecb_cold |
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219 | mmap_free (pTHX_ SV *sv, MAGIC *mg) |
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220 | { |
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221 | int old_errno = errno; |
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222 | munmap (mg->mg_ptr, (size_t)mg->mg_obj); |
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223 | errno = old_errno; |
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224 | |
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225 | mg->mg_obj = 0; /* just in case */ |
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226 | |
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227 | SvREADONLY_off (sv); |
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228 | |
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229 | if (SvPVX (sv) != mg->mg_ptr) |
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230 | croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected"); |
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231 | |
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232 | SvCUR_set (sv, 0); |
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233 | SvPVX (sv) = 0; |
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234 | SvOK_off (sv); |
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235 | |
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236 | return 0; |
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237 | } |
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238 | |
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239 | static MGVTBL mmap_vtbl = { |
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240 | 0, 0, 0, 0, mmap_free |
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241 | }; |
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242 | |
|
|
243 | static int ecb_cold |
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244 | sysfree_free (pTHX_ SV *sv, MAGIC *mg) |
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245 | { |
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246 | free (mg->mg_ptr); |
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247 | mg->mg_obj = 0; /* just in case */ |
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248 | |
|
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249 | SvREADONLY_off (sv); |
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250 | |
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251 | if (SvPVX (sv) != mg->mg_ptr) |
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252 | croak ("ERROR: IO::AIO mapped scalar changed location, detected"); |
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253 | |
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254 | SvCUR_set (sv, 0); |
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255 | SvPVX (sv) = 0; |
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|
256 | SvOK_off (sv); |
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257 | |
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258 | return 0; |
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259 | } |
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260 | |
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|
261 | static MGVTBL sysfree_vtbl = { |
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262 | 0, 0, 0, 0, sysfree_free |
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263 | }; |
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264 | |
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265 | /*****************************************************************************/ |
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266 | |
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|
267 | /* helper: set scalar to foreign ptr with custom free */ |
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268 | static void |
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269 | sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length) |
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270 | { |
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271 | sv_force_normal (sv); |
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272 | |
|
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273 | /* we store the length in mg_obj, as namlen is I32 :/ */ |
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274 | sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0) |
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275 | ->mg_obj = (SV *)length; |
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276 | |
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277 | SvUPGRADE (sv, SVt_PV); /* nop... */ |
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278 | |
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279 | if (SvLEN (sv)) |
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280 | Safefree (SvPVX (sv)); |
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281 | |
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282 | SvPVX (sv) = (char *)addr; |
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283 | SvCUR_set (sv, length); |
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284 | SvLEN_set (sv, 0); |
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285 | SvPOK_only (sv); |
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286 | } |
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287 | |
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|
288 | static void |
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289 | sv_clear_foreign (SV *sv) |
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290 | { |
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291 | /* todo: iterate over magic and only free ours, but of course */ |
|
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292 | /* the perl5porters will call that (correct) behaviour buggy */ |
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293 | sv_unmagic (sv, FOREIGN_MAGIC); |
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294 | } |
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295 | |
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296 | /*****************************************************************************/ |
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297 | |
150 | /* defines all sorts of constants to 0 unless they are already defined */ |
298 | /* defines all sorts of constants to 0 unless they are already defined */ |
151 | /* also provides const_iv_ and const_niv_ macros for them */ |
299 | /* also provides const_iv_ and const_niv_ macros for them */ |
152 | #include "def0.h" |
300 | #include "def0.h" |
153 | |
|
|
154 | #ifndef makedev |
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|
155 | # define makedev(maj,min) (((maj) << 8) | (min)) |
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156 | #endif |
|
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157 | #ifndef major |
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158 | # define major(dev) ((dev) >> 8) |
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|
159 | #endif |
|
|
160 | #ifndef minor |
|
|
161 | # define minor(dev) ((dev) & 0xff) |
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|
162 | #endif |
|
|
163 | |
|
|
164 | #if PAGESIZE <= 0 |
|
|
165 | # define PAGESIZE sysconf (_SC_PAGESIZE) |
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|
166 | #endif |
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|
167 | |
301 | |
168 | /*****************************************************************************/ |
302 | /*****************************************************************************/ |
169 | |
303 | |
170 | static void |
304 | static void |
171 | fiemap (eio_req *req) |
305 | fiemap (eio_req *req) |
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591 | SvSETMAGIC (req->sv2); |
725 | SvSETMAGIC (req->sv2); |
592 | PUSHs (sv_result); |
726 | PUSHs (sv_result); |
593 | } |
727 | } |
594 | break; |
728 | break; |
595 | |
729 | |
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|
730 | case EIO_SLURP: |
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731 | { |
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732 | if (req->result >= 0) |
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733 | { |
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734 | /* if length was originally not known, we steal the malloc'ed memory */ |
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735 | if (req->flags & EIO_FLAG_PTR2_FREE) |
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736 | { |
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737 | req->flags &= ~EIO_FLAG_PTR2_FREE; |
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738 | sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result); |
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739 | } |
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740 | else |
|
|
741 | { |
|
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742 | SvCUR_set (req->sv2, req->result); |
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743 | *SvEND (req->sv2) = 0; |
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744 | SvPOK_only (req->sv2); |
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745 | } |
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746 | |
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|
747 | SvSETMAGIC (req->sv2); |
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|
748 | } |
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|
749 | |
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750 | PUSHs (sv_result); |
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|
751 | } |
|
|
752 | break; |
|
|
753 | |
596 | case EIO_CUSTOM: |
754 | case EIO_CUSTOM: |
597 | if (req->feed == fiemap) |
755 | if (req->feed == fiemap) |
598 | { |
756 | { |
599 | #if HAVE_FIEMAP |
757 | #if HAVE_FIEMAP |
600 | if (!req->result) |
758 | if (!req->result) |
… | |
… | |
743 | create_respipe (); |
901 | create_respipe (); |
744 | |
902 | |
745 | if (eio_init (want_poll, done_poll) < 0) |
903 | if (eio_init (want_poll, done_poll) < 0) |
746 | croak ("IO::AIO: unable to initialise eio library"); |
904 | croak ("IO::AIO: unable to initialise eio library"); |
747 | } |
905 | } |
748 | |
|
|
749 | /*****************************************************************************/ |
|
|
750 | |
|
|
751 | #if !_POSIX_MAPPED_FILES |
|
|
752 | # define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS () |
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|
753 | # define munmap(addr,length) EIO_ENOSYS () |
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|
754 | #endif |
|
|
755 | |
|
|
756 | #if !_POSIX_MEMORY_PROTECTION |
|
|
757 | # define mprotect(addr,len,prot) EIO_ENOSYS () |
|
|
758 | #endif |
|
|
759 | |
|
|
760 | #define MMAP_MAGIC PERL_MAGIC_ext |
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|
761 | |
|
|
762 | static int ecb_cold |
|
|
763 | mmap_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
764 | { |
|
|
765 | int old_errno = errno; |
|
|
766 | munmap (mg->mg_ptr, (size_t)mg->mg_obj); |
|
|
767 | errno = old_errno; |
|
|
768 | |
|
|
769 | mg->mg_obj = 0; /* just in case */ |
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|
770 | |
|
|
771 | SvREADONLY_off (sv); |
|
|
772 | |
|
|
773 | if (SvPVX (sv) != mg->mg_ptr) |
|
|
774 | croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected"); |
|
|
775 | |
|
|
776 | SvCUR_set (sv, 0); |
|
|
777 | SvPVX (sv) = 0; |
|
|
778 | SvOK_off (sv); |
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|
779 | |
|
|
780 | return 0; |
|
|
781 | } |
|
|
782 | |
|
|
783 | static MGVTBL mmap_vtbl = { |
|
|
784 | 0, 0, 0, 0, mmap_free |
|
|
785 | }; |
|
|
786 | |
906 | |
787 | /*****************************************************************************/ |
907 | /*****************************************************************************/ |
788 | |
908 | |
789 | static SV * |
909 | static SV * |
790 | get_cb (SV *cb_sv) |
910 | get_cb (SV *cb_sv) |
… | |
… | |
886 | req_set_path1 (req, fh_or_path); |
1006 | req_set_path1 (req, fh_or_path); |
887 | break; |
1007 | break; |
888 | } |
1008 | } |
889 | } |
1009 | } |
890 | |
1010 | |
|
|
1011 | /*****************************************************************************/ |
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|
1012 | |
|
|
1013 | static void |
|
|
1014 | ts_set (struct timespec *ts, NV value) |
|
|
1015 | { |
|
|
1016 | ts->tv_sec = value; |
|
|
1017 | ts->tv_nsec = (value - ts->tv_sec) * 1e9; |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | static NV |
|
|
1021 | ts_get (const struct timespec *ts) |
|
|
1022 | { |
|
|
1023 | return ts->tv_sec + ts->tv_nsec * 1e-9; |
|
|
1024 | } |
|
|
1025 | |
|
|
1026 | /*****************************************************************************/ |
|
|
1027 | |
891 | XS(boot_IO__AIO) ecb_cold; |
1028 | XS(boot_IO__AIO) ecb_cold; |
892 | |
1029 | |
893 | MODULE = IO::AIO PACKAGE = IO::AIO |
1030 | MODULE = IO::AIO PACKAGE = IO::AIO |
894 | |
1031 | |
895 | PROTOTYPES: ENABLE |
1032 | PROTOTYPES: ENABLE |
… | |
… | |
926 | const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) |
1063 | const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) |
927 | const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) |
1064 | const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) |
928 | const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) |
1065 | const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) |
929 | |
1066 | |
930 | /* the second block will be 0 when missing */ |
1067 | /* the second block will be 0 when missing */ |
|
|
1068 | const_iv (O_ACCMODE) |
|
|
1069 | |
931 | const_iv (O_RDONLY) |
1070 | const_iv (O_RDONLY) |
932 | const_iv (O_WRONLY) |
1071 | const_iv (O_WRONLY) |
933 | const_iv (O_RDWR) |
1072 | const_iv (O_RDWR) |
934 | const_iv (O_CREAT) |
1073 | const_iv (O_CREAT) |
935 | const_iv (O_TRUNC) |
1074 | const_iv (O_TRUNC) |
… | |
… | |
995 | const_iv (MAP_GROWSDOWN) |
1134 | const_iv (MAP_GROWSDOWN) |
996 | const_iv (MAP_32BIT) |
1135 | const_iv (MAP_32BIT) |
997 | const_iv (MAP_HUGETLB) |
1136 | const_iv (MAP_HUGETLB) |
998 | const_iv (MAP_STACK) |
1137 | const_iv (MAP_STACK) |
999 | |
1138 | |
|
|
1139 | const_iv (MREMAP_MAYMOVE) |
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|
1140 | const_iv (MREMAP_FIXED) |
|
|
1141 | |
1000 | const_iv (F_DUPFD_CLOEXEC) |
1142 | const_iv (F_DUPFD_CLOEXEC) |
|
|
1143 | |
|
|
1144 | const_iv (MSG_CMSG_CLOEXEC) |
|
|
1145 | const_iv (SOCK_CLOEXEC) |
1001 | |
1146 | |
1002 | const_iv (F_OFD_GETLK) |
1147 | const_iv (F_OFD_GETLK) |
1003 | const_iv (F_OFD_SETLK) |
1148 | const_iv (F_OFD_SETLK) |
1004 | const_iv (F_OFD_GETLKW) |
1149 | const_iv (F_OFD_GETLKW) |
1005 | |
1150 | |
… | |
… | |
1078 | const_iv (SPLICE_F_MOVE) |
1223 | const_iv (SPLICE_F_MOVE) |
1079 | const_iv (SPLICE_F_NONBLOCK) |
1224 | const_iv (SPLICE_F_NONBLOCK) |
1080 | const_iv (SPLICE_F_MORE) |
1225 | const_iv (SPLICE_F_MORE) |
1081 | const_iv (SPLICE_F_GIFT) |
1226 | const_iv (SPLICE_F_GIFT) |
1082 | |
1227 | |
|
|
1228 | const_iv (EFD_CLOEXEC) |
|
|
1229 | const_iv (EFD_NONBLOCK) |
|
|
1230 | const_iv (EFD_SEMAPHORE) |
|
|
1231 | |
|
|
1232 | const_iv (CLOCK_REALTIME) |
|
|
1233 | const_iv (CLOCK_MONOTONIC) |
|
|
1234 | const_iv (CLOCK_BOOTTIME) |
|
|
1235 | const_iv (CLOCK_REALTIME_ALARM) |
|
|
1236 | const_iv (CLOCK_BOOTTIME_ALARM) |
|
|
1237 | |
|
|
1238 | const_iv (TFD_NONBLOCK) |
|
|
1239 | const_iv (TFD_CLOEXEC) |
|
|
1240 | |
|
|
1241 | const_iv (TFD_TIMER_ABSTIME) |
|
|
1242 | const_iv (TFD_TIMER_CANCEL_ON_SET) |
|
|
1243 | |
1083 | /* these are libeio constants, and are independent of gendef0 */ |
1244 | /* these are libeio constants, and are independent of gendef0 */ |
1084 | const_eio (SEEK_SET) |
1245 | const_eio (SEEK_SET) |
1085 | const_eio (SEEK_CUR) |
1246 | const_eio (SEEK_CUR) |
1086 | const_eio (SEEK_END) |
1247 | const_eio (SEEK_END) |
1087 | |
1248 | |
… | |
… | |
1470 | req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); |
1631 | req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); |
1471 | |
1632 | |
1472 | REQ_SEND; |
1633 | REQ_SEND; |
1473 | } |
1634 | } |
1474 | |
1635 | |
|
|
1636 | void |
|
|
1637 | st_xtime () |
|
|
1638 | ALIAS: |
|
|
1639 | st_atime = 1 |
|
|
1640 | st_mtime = 2 |
|
|
1641 | st_ctime = 4 |
|
|
1642 | st_xtime = 7 |
|
|
1643 | PPCODE: |
|
|
1644 | EXTEND (SP, 3); |
|
|
1645 | if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC)); |
|
|
1646 | if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC)); |
|
|
1647 | if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC)); |
|
|
1648 | |
|
|
1649 | void |
|
|
1650 | st_xtimensec () |
|
|
1651 | ALIAS: |
|
|
1652 | st_atimensec = 1 |
|
|
1653 | st_mtimensec = 2 |
|
|
1654 | st_ctimensec = 4 |
|
|
1655 | st_xtimensec = 7 |
|
|
1656 | PPCODE: |
|
|
1657 | EXTEND (SP, 3); |
|
|
1658 | if (ix & 1) PUSHs (newSViv (ATIMENSEC)); |
|
|
1659 | if (ix & 2) PUSHs (newSViv (MTIMENSEC)); |
|
|
1660 | if (ix & 4) PUSHs (newSViv (CTIMENSEC)); |
|
|
1661 | |
1475 | UV |
1662 | UV |
1476 | major (UV dev) |
1663 | major (UV dev) |
1477 | ALIAS: |
1664 | ALIAS: |
1478 | minor = 1 |
1665 | minor = 1 |
1479 | CODE: |
1666 | CODE: |
… | |
… | |
1729 | req->int2 = flags; |
1916 | req->int2 = flags; |
1730 | req->int3 = SvOK (count) ? SvIV (count) : -1; |
1917 | req->int3 = SvOK (count) ? SvIV (count) : -1; |
1731 | #endif |
1918 | #endif |
1732 | |
1919 | |
1733 | REQ_SEND; |
1920 | REQ_SEND; |
|
|
1921 | } |
|
|
1922 | |
|
|
1923 | void |
|
|
1924 | aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef) |
|
|
1925 | PPCODE: |
|
|
1926 | { |
|
|
1927 | char *svptr = 0; |
|
|
1928 | |
|
|
1929 | sv_clear_foreign (data); |
|
|
1930 | |
|
|
1931 | if (length) /* known length, directly read into scalar */ |
|
|
1932 | { |
|
|
1933 | if (!SvPOK (data) || SvLEN (data) >= SvCUR (data)) |
|
|
1934 | svptr = sv_grow (data, length + 1); |
|
|
1935 | else if (SvCUR (data) < length) |
|
|
1936 | croak ("length outside of scalar, and cannot grow"); |
|
|
1937 | else |
|
|
1938 | svptr = SvPVbyte_nolen (data); |
|
|
1939 | } |
|
|
1940 | |
|
|
1941 | { |
|
|
1942 | dREQ; |
|
|
1943 | |
|
|
1944 | req->type = EIO_SLURP; |
|
|
1945 | req_set_path1 (req, pathname); |
|
|
1946 | req->offs = offset; |
|
|
1947 | req->size = length; |
|
|
1948 | req->sv2 = SvREFCNT_inc (data); |
|
|
1949 | req->ptr2 = svptr; |
|
|
1950 | |
|
|
1951 | if (!SvREADONLY (data)) |
|
|
1952 | { |
|
|
1953 | SvREADONLY_on (data); |
|
|
1954 | req->flags |= FLAG_SV2_RO_OFF; |
|
|
1955 | } |
|
|
1956 | |
|
|
1957 | REQ_SEND; |
|
|
1958 | } |
1734 | } |
1959 | } |
1735 | |
1960 | |
1736 | void |
1961 | void |
1737 | aio_busy (double delay, SV *callback = &PL_sv_undef) |
1962 | aio_busy (double delay, SV *callback = &PL_sv_undef) |
1738 | PPCODE: |
1963 | PPCODE: |
… | |
… | |
1875 | RETVAL |
2100 | RETVAL |
1876 | |
2101 | |
1877 | void |
2102 | void |
1878 | mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0) |
2103 | mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0) |
1879 | PPCODE: |
2104 | PPCODE: |
1880 | sv_unmagic (scalar, MMAP_MAGIC); |
2105 | sv_clear_foreign (scalar); |
1881 | { |
2106 | { |
1882 | int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; |
2107 | int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; |
1883 | void *addr = (void *)mmap (0, length, prot, flags, fd, offset); |
2108 | void *addr = (void *)mmap (0, length, prot, flags, fd, offset); |
1884 | if (addr == (void *)-1) |
2109 | if (addr == (void *)-1) |
1885 | XSRETURN_NO; |
2110 | XSRETURN_NO; |
1886 | |
2111 | |
1887 | sv_force_normal (scalar); |
2112 | sv_set_foreign (scalar, &mmap_vtbl, addr, length); |
1888 | |
|
|
1889 | /* we store the length in mg_obj, as namlen is I32 :/ */ |
|
|
1890 | sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) |
|
|
1891 | ->mg_obj = (SV *)length; |
|
|
1892 | |
|
|
1893 | SvUPGRADE (scalar, SVt_PV); /* nop... */ |
|
|
1894 | |
2113 | |
1895 | if (!(prot & PROT_WRITE)) |
2114 | if (!(prot & PROT_WRITE)) |
1896 | SvREADONLY_on (scalar); |
2115 | SvREADONLY_on (scalar); |
1897 | |
2116 | |
1898 | if (SvLEN (scalar)) |
|
|
1899 | Safefree (SvPVX (scalar)); |
|
|
1900 | |
|
|
1901 | SvPVX (scalar) = (char *)addr; |
|
|
1902 | SvCUR_set (scalar, length); |
|
|
1903 | SvLEN_set (scalar, 0); |
|
|
1904 | SvPOK_only (scalar); |
|
|
1905 | |
|
|
1906 | XSRETURN_YES; |
2117 | XSRETURN_YES; |
1907 | } |
2118 | } |
1908 | |
2119 | |
1909 | void |
2120 | void |
1910 | munmap (SV *scalar) |
2121 | munmap (SV *scalar) |
1911 | CODE: |
2122 | CODE: |
1912 | sv_unmagic (scalar, MMAP_MAGIC); |
2123 | sv_clear_foreign (scalar); |
|
|
2124 | |
|
|
2125 | SV * |
|
|
2126 | mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0) |
|
|
2127 | CODE: |
|
|
2128 | { |
|
|
2129 | MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl); |
|
|
2130 | void *new; |
|
|
2131 | |
|
|
2132 | if (!mg || SvPVX (scalar) != mg->mg_ptr) |
|
|
2133 | croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified"); |
|
|
2134 | |
|
|
2135 | new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address); |
|
|
2136 | |
|
|
2137 | RETVAL = &PL_sv_no; |
|
|
2138 | |
|
|
2139 | if (new != (void *)-1) |
|
|
2140 | { |
|
|
2141 | RETVAL = new == (void *)mg->mg_ptr |
|
|
2142 | ? newSVpvn ("0 but true", 10) |
|
|
2143 | : &PL_sv_yes; |
|
|
2144 | |
|
|
2145 | mg->mg_ptr = (char *)new; |
|
|
2146 | mg->mg_obj = (SV *)new_length; |
|
|
2147 | |
|
|
2148 | SvPVX (scalar) = mg->mg_ptr; |
|
|
2149 | SvCUR_set (scalar, new_length); |
|
|
2150 | } |
|
|
2151 | } |
|
|
2152 | OUTPUT: |
|
|
2153 | RETVAL |
1913 | |
2154 | |
1914 | int |
2155 | int |
1915 | madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) |
2156 | madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) |
1916 | ALIAS: |
2157 | ALIAS: |
1917 | mprotect = 1 |
2158 | mprotect = 1 |
… | |
… | |
2047 | { |
2288 | { |
2048 | EXTEND (SP, 2); |
2289 | EXTEND (SP, 2); |
2049 | PUSHs (newmortalFH (fd[0], O_RDONLY)); |
2290 | PUSHs (newmortalFH (fd[0], O_RDONLY)); |
2050 | PUSHs (newmortalFH (fd[1], O_WRONLY)); |
2291 | PUSHs (newmortalFH (fd[1], O_WRONLY)); |
2051 | } |
2292 | } |
|
|
2293 | } |
|
|
2294 | |
|
|
2295 | void |
|
|
2296 | eventfd (unsigned int initval = 0, int flags = 0) |
|
|
2297 | PPCODE: |
|
|
2298 | { |
|
|
2299 | int fd; |
|
|
2300 | #if HAVE_EVENTFD |
|
|
2301 | fd = eventfd (initval, flags); |
|
|
2302 | #else |
|
|
2303 | fd = (errno = ENOSYS, -1); |
|
|
2304 | #endif |
|
|
2305 | |
|
|
2306 | XPUSHs (newmortalFH (fd, O_RDWR)); |
|
|
2307 | } |
|
|
2308 | |
|
|
2309 | void |
|
|
2310 | timerfd_create (int clockid, int flags = 0) |
|
|
2311 | PPCODE: |
|
|
2312 | { |
|
|
2313 | int fd; |
|
|
2314 | #if HAVE_TIMERFD |
|
|
2315 | fd = timerfd_create (clockid, flags); |
|
|
2316 | #else |
|
|
2317 | fd = (errno = ENOSYS, -1); |
|
|
2318 | #endif |
|
|
2319 | |
|
|
2320 | XPUSHs (newmortalFH (fd, O_RDWR)); |
|
|
2321 | } |
|
|
2322 | |
|
|
2323 | void |
|
|
2324 | timerfd_settime (SV *fh, int flags, NV interval, NV value) |
|
|
2325 | PPCODE: |
|
|
2326 | { |
|
|
2327 | int fd = s_fileno_croak (fh, 0); |
|
|
2328 | #if HAVE_TIMERFD |
|
|
2329 | int res; |
|
|
2330 | struct itimerspec its, ots; |
|
|
2331 | |
|
|
2332 | ts_set (&its.it_interval, interval); |
|
|
2333 | ts_set (&its.it_value , value); |
|
|
2334 | res = timerfd_settime (fd, flags, &its, &ots); |
|
|
2335 | |
|
|
2336 | if (!res) |
|
|
2337 | { |
|
|
2338 | EXTEND (SP, 2); |
|
|
2339 | PUSHs (newSVnv (ts_get (&ots.it_interval))); |
|
|
2340 | PUSHs (newSVnv (ts_get (&ots.it_value))); |
|
|
2341 | } |
|
|
2342 | #else |
|
|
2343 | errno = ENOSYS; |
|
|
2344 | #endif |
|
|
2345 | } |
|
|
2346 | |
|
|
2347 | void |
|
|
2348 | timerfd_gettime (SV *fh) |
|
|
2349 | PPCODE: |
|
|
2350 | { |
|
|
2351 | int fd = s_fileno_croak (fh, 0); |
|
|
2352 | #if HAVE_TIMERFD |
|
|
2353 | int res; |
|
|
2354 | struct itimerspec ots; |
|
|
2355 | res = timerfd_gettime (fd, &ots); |
|
|
2356 | |
|
|
2357 | if (!res) |
|
|
2358 | { |
|
|
2359 | EXTEND (SP, 2); |
|
|
2360 | PUSHs (newSVnv (ts_get (&ots.it_interval))); |
|
|
2361 | PUSHs (newSVnv (ts_get (&ots.it_value))); |
|
|
2362 | } |
|
|
2363 | #else |
|
|
2364 | errno = ENOSYS; |
|
|
2365 | #endif |
|
|
2366 | } |
|
|
2367 | |
|
|
2368 | UV |
|
|
2369 | get_fdlimit () |
|
|
2370 | CODE: |
|
|
2371 | #if HAVE_RLIMITS |
|
|
2372 | struct rlimit rl; |
|
|
2373 | if (0 == getrlimit (RLIMIT_NOFILE, &rl)) |
|
|
2374 | XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur); |
|
|
2375 | #endif |
|
|
2376 | XSRETURN_UNDEF; |
|
|
2377 | OUTPUT: |
|
|
2378 | RETVAL |
|
|
2379 | |
|
|
2380 | void |
|
|
2381 | min_fdlimit (UV limit = 0x7fffffffU) |
|
|
2382 | CODE: |
|
|
2383 | { |
|
|
2384 | #if HAVE_RLIMITS |
|
|
2385 | struct rlimit rl; |
|
|
2386 | rlim_t orig_rlim_max; |
|
|
2387 | UV bit; |
|
|
2388 | |
|
|
2389 | if (0 != getrlimit (RLIMIT_NOFILE, &rl)) |
|
|
2390 | goto fail; |
|
|
2391 | |
|
|
2392 | if (rl.rlim_cur == RLIM_INFINITY) |
|
|
2393 | XSRETURN_YES; |
|
|
2394 | |
|
|
2395 | orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max; |
|
|
2396 | |
|
|
2397 | if (rl.rlim_cur < limit) |
|
|
2398 | { |
|
|
2399 | rl.rlim_cur = limit; |
|
|
2400 | |
|
|
2401 | if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY) |
|
|
2402 | rl.rlim_max = rl.rlim_cur; |
|
|
2403 | } |
|
|
2404 | |
|
|
2405 | if (0 == setrlimit (RLIMIT_NOFILE, &rl)) |
|
|
2406 | XSRETURN_YES; |
|
|
2407 | |
|
|
2408 | if (errno == EPERM) |
|
|
2409 | { |
|
|
2410 | /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */ |
|
|
2411 | /* our limit overflows a system-wide limit */ |
|
|
2412 | /* try an adaptive algorithm, but do not lower the hardlimit */ |
|
|
2413 | rl.rlim_max = 0; |
|
|
2414 | for (bit = 0x40000000U; bit; bit >>= 1) |
|
|
2415 | { |
|
|
2416 | rl.rlim_max |= bit; |
|
|
2417 | rl.rlim_cur = rl.rlim_max; |
|
|
2418 | |
|
|
2419 | /* nevr decrease the hard limit */ |
|
|
2420 | if (rl.rlim_max < orig_rlim_max) |
|
|
2421 | break; |
|
|
2422 | |
|
|
2423 | if (0 != setrlimit (RLIMIT_NOFILE, &rl)) |
|
|
2424 | rl.rlim_max &= ~bit; /* too high, remove bit again */ |
|
|
2425 | } |
|
|
2426 | |
|
|
2427 | /* now, raise the soft limit to the max permitted */ |
|
|
2428 | if (0 == getrlimit (RLIMIT_NOFILE, &rl)) |
|
|
2429 | { |
|
|
2430 | rl.rlim_cur = rl.rlim_max; |
|
|
2431 | if (0 == setrlimit (RLIMIT_NOFILE, &rl)) |
|
|
2432 | errno = EPERM; |
|
|
2433 | } |
|
|
2434 | } |
|
|
2435 | #endif |
|
|
2436 | fail: |
|
|
2437 | XSRETURN_UNDEF; |
2052 | } |
2438 | } |
2053 | |
2439 | |
2054 | void _on_next_submit (SV *cb) |
2440 | void _on_next_submit (SV *cb) |
2055 | CODE: |
2441 | CODE: |
2056 | SvREFCNT_dec (on_next_submit); |
2442 | SvREFCNT_dec (on_next_submit); |