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Comparing libeio/eio.c (file contents):
Revision 1.93 by root, Mon Jul 18 01:27:03 2011 UTC vs.
Revision 1.100 by root, Tue Jul 26 11:32:16 2011 UTC

… …
71#endif 71#endif
72#ifndef ELOOP 72#ifndef ELOOP
73# define ELOOP EDOM 73# define ELOOP EDOM
74#endif 74#endif
75 75
76#if !defined(ENOTSOCK) && defined(WSAENOTSOCK)
77# define ENOTSOCK WSAENOTSOCK
78#endif
79
76static void eio_destroy (eio_req *req); 80static void eio_destroy (eio_req *req);
77 81
78#ifndef EIO_FINISH 82#ifndef EIO_FINISH
79# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 83# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0
80#endif 84#endif
… …
101#ifdef _WIN32 105#ifdef _WIN32
102 106
103 #undef PAGESIZE 107 #undef PAGESIZE
104 #define PAGESIZE 4096 /* GetSystemInfo? */ 108 #define PAGESIZE 4096 /* GetSystemInfo? */
105 109
110 /* TODO: look at how perl does stat (non-sloppy), unlink (ro-files), utime, link */
111
106 #ifdef EIO_STRUCT_STATI64 112 #ifdef EIO_STRUCT_STATI64
113 /* look at perl's non-sloppy stat */
107 #define stat(path,buf) _stati64 (path,buf) 114 #define stat(path,buf) _stati64 (path,buf)
108 #define fstat(fd,buf) _fstati64 (path,buf) 115 #define fstat(fd,buf) _fstati64 (fd,buf)
109 #endif 116 #endif
110 #define lstat(path,buf) stat (path,buf) 117 #define lstat(path,buf) stat (path,buf)
111 #define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1)) 118 #define fsync(fd) (FlushFileBuffers ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd)) ? 0 : EIO_ERRNO (EBADF, -1))
112 #define mkdir(path,mode) _mkdir (path) 119 #define mkdir(path,mode) _mkdir (path)
113 #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1)) 120 #define link(old,neu) (CreateHardLink (neu, old, 0) ? 0 : EIO_ERRNO (ENOENT, -1))
… …
125 #define sync() EIO_ENOSYS () 132 #define sync() EIO_ENOSYS ()
126 #define readlink(path,buf,s) EIO_ENOSYS () 133 #define readlink(path,buf,s) EIO_ENOSYS ()
127 #define statvfs(path,buf) EIO_ENOSYS () 134 #define statvfs(path,buf) EIO_ENOSYS ()
128 #define fstatvfs(fd,buf) EIO_ENOSYS () 135 #define fstatvfs(fd,buf) EIO_ENOSYS ()
129 136
137 /* rename() uses MoveFile, which fails to overwrite */
138 #define rename(old,neu) eio__rename (old, neu)
139
140 static int
141 eio__rename (const char *old, const char *neu)
142 {
143 if (MoveFileEx (old, neu, MOVEFILE_REPLACE_EXISTING))
144 return 0;
145
146 /* should steal _dosmaperr */
147 switch (GetLastError ())
148 {
149 case ERROR_FILE_NOT_FOUND:
150 case ERROR_PATH_NOT_FOUND:
151 case ERROR_INVALID_DRIVE:
152 case ERROR_NO_MORE_FILES:
153 case ERROR_BAD_NETPATH:
154 case ERROR_BAD_NET_NAME:
155 case ERROR_BAD_PATHNAME:
156 case ERROR_FILENAME_EXCED_RANGE:
157 errno = ENOENT;
158 break;
159
160 default:
161 errno = EACCES;
162 break;
163 }
164
165 return -1;
166 }
167
130 /* we could even stat and see if it exists */ 168 /* we could even stat and see if it exists */
131 static int 169 static int
132 symlink (const char *old, const char *neu) 170 symlink (const char *old, const char *neu)
133 { 171 {
134 #if WINVER >= 0x0600 172 #if WINVER >= 0x0600
… …
160 198
161 #include <sys/time.h> 199 #include <sys/time.h>
162 #include <sys/select.h> 200 #include <sys/select.h>
163 #include <sys/statvfs.h> 201 #include <sys/statvfs.h>
164 #include <unistd.h> 202 #include <unistd.h>
165 #include <utime.h>
166 #include <signal.h> 203 #include <signal.h>
167 #include <dirent.h> 204 #include <dirent.h>
168 205
169 #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES 206 #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
170 #include <sys/mman.h> 207 #include <sys/mman.h>
… …
192 229
193 #ifndef EIO_STRUCT_DIRENT 230 #ifndef EIO_STRUCT_DIRENT
194 #define EIO_STRUCT_DIRENT struct dirent 231 #define EIO_STRUCT_DIRENT struct dirent
195 #endif 232 #endif
196 233
234#endif
235
236#if HAVE_UTIMES
237# include <utime.h>
238#endif
239
240#if HAVE_SYS_SYSCALL_H
241# include <sys/syscall.h>
242#endif
243
244#if HAVE_SYS_PRCTL_H
245# include <sys/prctl.h>
197#endif 246#endif
198 247
199#if HAVE_SENDFILE 248#if HAVE_SENDFILE
200# if __linux 249# if __linux
201# include <sys/sendfile.h> 250# include <sys/sendfile.h>
… …
233 282
234/* buffer size for various temporary buffers */ 283/* buffer size for various temporary buffers */
235#define EIO_BUFSIZE 65536 284#define EIO_BUFSIZE 65536
236 285
237#define dBUF \ 286#define dBUF \
238 char *eio_buf; \
239 ETP_WORKER_LOCK (self); \
240 self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ 287 char *eio_buf = malloc (EIO_BUFSIZE); \
241 ETP_WORKER_UNLOCK (self); \
242 errno = ENOMEM; \ 288 errno = ENOMEM; \
243 if (!eio_buf) \ 289 if (!eio_buf) \
244 return -1; 290 return -1
291
292#define FUBd \
293 free (eio_buf)
245 294
246#define EIO_TICKS ((1000000 + 1023) >> 10) 295#define EIO_TICKS ((1000000 + 1023) >> 10)
247 296
248#define ETP_PRI_MIN EIO_PRI_MIN 297#define ETP_PRI_MIN EIO_PRI_MIN
249#define ETP_PRI_MAX EIO_PRI_MAX 298#define ETP_PRI_MAX EIO_PRI_MAX
… …
254#define ETP_DESTROY(req) eio_destroy (req) 303#define ETP_DESTROY(req) eio_destroy (req)
255static int eio_finish (eio_req *req); 304static int eio_finish (eio_req *req);
256#define ETP_FINISH(req) eio_finish (req) 305#define ETP_FINISH(req) eio_finish (req)
257static void eio_execute (struct etp_worker *self, eio_req *req); 306static void eio_execute (struct etp_worker *self, eio_req *req);
258#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req) 307#define ETP_EXECUTE(wrk,req) eio_execute (wrk,req)
259
260#define ETP_WORKER_CLEAR(req) \
261 if (wrk->dbuf) \
262 { \
263 free (wrk->dbuf); \
264 wrk->dbuf = 0; \
265 }
266
267#define ETP_WORKER_COMMON \
268 void *dbuf;
269 308
270/*****************************************************************************/ 309/*****************************************************************************/
271 310
272#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) 311#define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1)
273 312
… …
315 xthread_t tid; 354 xthread_t tid;
316 355
317 /* locked by reslock, reqlock or wrklock */ 356 /* locked by reslock, reqlock or wrklock */
318 ETP_REQ *req; /* currently processed request */ 357 ETP_REQ *req; /* currently processed request */
319 358
359#ifdef ETP_WORKER_COMMON
320 ETP_WORKER_COMMON 360 ETP_WORKER_COMMON
361#endif
321} etp_worker; 362} etp_worker;
322 363
323static etp_worker wrk_first; /* NOT etp */ 364static etp_worker wrk_first; /* NOT etp */
324 365
325#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) 366#define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock)
… …
328/* worker threads management */ 369/* worker threads management */
329 370
330static void ecb_cold 371static void ecb_cold
331etp_worker_clear (etp_worker *wrk) 372etp_worker_clear (etp_worker *wrk)
332{ 373{
333 ETP_WORKER_CLEAR (wrk);
334} 374}
335 375
336static void ecb_cold 376static void ecb_cold
337etp_worker_free (etp_worker *wrk) 377etp_worker_free (etp_worker *wrk)
338{ 378{
… …
939#if !HAVE_FDATASYNC 979#if !HAVE_FDATASYNC
940# undef fdatasync 980# undef fdatasync
941# define fdatasync(fd) fsync (fd) 981# define fdatasync(fd) fsync (fd)
942#endif 982#endif
943 983
984static int
985eio__syncfs (int fd)
986{
987 int res;
988
989#if HAVE_SYS_SYNCFS
990 res = (int)syscall (__NR_syncfs, (int)(fd));
991#else
992 res = -1;
993 errno = ENOSYS;
994#endif
995
996 if (res < 0 && errno == ENOSYS && fd >= 0)
997 sync ();
998
999 return res;
1000}
1001
944/* sync_file_range always needs emulation */ 1002/* sync_file_range always needs emulation */
945static int 1003static int
946eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) 1004eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags)
947{ 1005{
948#if HAVE_SYNC_FILE_RANGE 1006#if HAVE_SYNC_FILE_RANGE
… …
997 pread (fd, eio_buf, len, offset); 1055 pread (fd, eio_buf, len, offset);
998 offset += len; 1056 offset += len;
999 todo -= len; 1057 todo -= len;
1000 } 1058 }
1001 1059
1060 FUBd;
1061
1002 errno = 0; 1062 errno = 0;
1003 return count; 1063 return count;
1004} 1064}
1005 1065
1006#endif 1066#endif
1007 1067
1008/* sendfile always needs emulation */ 1068/* sendfile always needs emulation */
1009static eio_ssize_t 1069static eio_ssize_t
1010eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) 1070eio__sendfile (int ofd, int ifd, off_t offset, size_t count)
1011{ 1071{
1012 eio_ssize_t written = 0; 1072 eio_ssize_t written = 0;
1013 eio_ssize_t res; 1073 eio_ssize_t res;
1014 1074
1015 if (!count) 1075 if (!count)
… …
1151 1211
1152 offset += cnt; 1212 offset += cnt;
1153 res += cnt; 1213 res += cnt;
1154 count -= cnt; 1214 count -= cnt;
1155 } 1215 }
1216
1217 FUBd;
1156 } 1218 }
1157 1219
1158 return res; 1220 return res;
1159} 1221}
1160 1222
… …
1646 1708
1647 if (dirp == INVALID_HANDLE_VALUE) 1709 if (dirp == INVALID_HANDLE_VALUE)
1648 { 1710 {
1649 dirp = 0; 1711 dirp = 0;
1650 1712
1713 /* should steal _dosmaperr */
1651 switch (GetLastError ()) 1714 switch (GetLastError ())
1652 { 1715 {
1653 case ERROR_FILE_NOT_FOUND: 1716 case ERROR_FILE_NOT_FOUND:
1654 req->result = 0; 1717 req->result = 0;
1655 break; 1718 break;
… …
1889{ 1952{
1890 ETP_REQ *req; 1953 ETP_REQ *req;
1891 struct timespec ts; 1954 struct timespec ts;
1892 etp_worker *self = (etp_worker *)thr_arg; 1955 etp_worker *self = (etp_worker *)thr_arg;
1893 1956
1957#if HAVE_PRCTL_SET_NAME
1958 prctl (PR_SET_NAME, (unsigned long)"eio_thread", 0, 0, 0);
1959#endif
1960
1894 /* try to distribute timeouts somewhat evenly */ 1961 /* try to distribute timeouts somewhat evenly */
1895 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL); 1962 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1896 1963
1897 for (;;) 1964 for (;;)
1898 { 1965 {
… …
2025 case EIO_WRITE: req->result = req->offs >= 0 2092 case EIO_WRITE: req->result = req->offs >= 0
2026 ? pwrite (req->int1, req->ptr2, req->size, req->offs) 2093 ? pwrite (req->int1, req->ptr2, req->size, req->offs)
2027 : write (req->int1, req->ptr2, req->size); break; 2094 : write (req->int1, req->ptr2, req->size); break;
2028 2095
2029 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; 2096 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
2030 case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break; 2097 case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size); break;
2031 2098
2032 case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT)); 2099 case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2033 req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 2100 req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
2034 case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT)); 2101 case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
2035 req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 2102 req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
… …
2065 req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break; 2132 req->result = readlink (req->ptr1, req->ptr2, PATH_MAX); break;
2066 2133
2067 case EIO_SYNC: req->result = 0; sync (); break; 2134 case EIO_SYNC: req->result = 0; sync (); break;
2068 case EIO_FSYNC: req->result = fsync (req->int1); break; 2135 case EIO_FSYNC: req->result = fsync (req->int1); break;
2069 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; 2136 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
2137 case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break;
2138 case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
2070 case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; 2139 case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break;
2071 case EIO_MTOUCH: req->result = eio__mtouch (req); break; 2140 case EIO_MTOUCH: req->result = eio__mtouch (req); break;
2072 case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; 2141 case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break;
2073 case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; 2142 case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break;
2074 case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break;
2075 case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break; 2143 case EIO_FALLOCATE: req->result = eio__fallocate (req->int1, req->int2, req->offs, req->size); break;
2076 2144
2077 case EIO_READDIR: eio__scandir (req, self); break; 2145 case EIO_READDIR: eio__scandir (req, self); break;
2078 2146
2079 case EIO_BUSY: 2147 case EIO_BUSY:
… …
2160eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) 2228eio_req *eio_msync (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
2161{ 2229{
2162 REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; 2230 REQ (EIO_MSYNC); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
2163} 2231}
2164 2232
2233eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
2234{
2235 REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
2236}
2237
2238eio_req *eio_syncfs (int fd, int pri, eio_cb cb, void *data)
2239{
2240 REQ (EIO_SYNCFS); req->int1 = fd; SEND;
2241}
2242
2243eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)
2244{
2245 REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;
2246}
2247
2165eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) 2248eio_req *eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
2166{ 2249{
2167 REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND; 2250 REQ (EIO_MTOUCH); req->ptr2 = addr; req->size = length; req->int1 = flags; SEND;
2168} 2251}
2169 2252
… …
2175eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data) 2258eio_req *eio_mlockall (int flags, int pri, eio_cb cb, void *data)
2176{ 2259{
2177 REQ (EIO_MLOCKALL); req->int1 = flags; SEND; 2260 REQ (EIO_MLOCKALL); req->int1 = flags; SEND;
2178} 2261}
2179 2262
2180eio_req *eio_sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags, int pri, eio_cb cb, void *data)
2181{
2182 REQ (EIO_SYNC_FILE_RANGE); req->int1 = fd; req->offs = offset; req->size = nbytes; req->int2 = flags; SEND;
2183}
2184
2185eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data) 2263eio_req *eio_fallocate (int fd, int mode, off_t offset, size_t len, int pri, eio_cb cb, void *data)
2186{ 2264{
2187 REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND; 2265 REQ (EIO_FALLOCATE); req->int1 = fd; req->int2 = mode; req->offs = offset; req->size = len; SEND;
2188}
2189
2190eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
2191{
2192 REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
2193} 2266}
2194 2267
2195eio_req *eio_close (int fd, int pri, eio_cb cb, void *data) 2268eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
2196{ 2269{
2197 REQ (EIO_CLOSE); req->int1 = fd; SEND; 2270 REQ (EIO_CLOSE); req->int1 = fd; SEND;
… …
2425/* misc garbage */ 2498/* misc garbage */
2426 2499
2427eio_ssize_t 2500eio_ssize_t
2428eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) 2501eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
2429{ 2502{
2430 etp_worker wrk;
2431 eio_ssize_t ret;
2432
2433 wrk.dbuf = 0;
2434
2435 ret = eio__sendfile (ofd, ifd, offset, count, &wrk); 2503 return eio__sendfile (ofd, ifd, offset, count);
2436
2437 if (wrk.dbuf)
2438 free (wrk.dbuf);
2439
2440 return ret;
2441} 2504}
2442 2505

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