… | |
… | |
132 | #define sync() EIO_ENOSYS () |
132 | #define sync() EIO_ENOSYS () |
133 | #define readlink(path,buf,s) EIO_ENOSYS () |
133 | #define readlink(path,buf,s) EIO_ENOSYS () |
134 | #define statvfs(path,buf) EIO_ENOSYS () |
134 | #define statvfs(path,buf) EIO_ENOSYS () |
135 | #define fstatvfs(fd,buf) EIO_ENOSYS () |
135 | #define fstatvfs(fd,buf) EIO_ENOSYS () |
136 | |
136 | |
|
|
137 | #define pread(fd,buf,count,offset) eio__pread (fd, buf, count, offset) |
|
|
138 | #define pwrite(fd,buf,count,offset) eio__pwrite (fd, buf, count, offset) |
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|
139 | |
|
|
140 | #if __GNUC__ |
|
|
141 | typedef long long eio_off_t; /* signed for compatibility to msvc */ |
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|
142 | #else |
|
|
143 | typedef __int64 eio_off_t; /* unsigned not supported by msvc */ |
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|
144 | #endif |
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|
145 | |
|
|
146 | static eio_ssize_t |
|
|
147 | eio__pread (int fd, void *buf, eio_ssize_t count, eio_off_t offset) |
|
|
148 | { |
|
|
149 | OVERLAPPED o = { 0 }; |
|
|
150 | DWORD got; |
|
|
151 | |
|
|
152 | o.Offset = offset; |
|
|
153 | o.OffsetHigh = offset >> 32; |
|
|
154 | |
|
|
155 | return ReadFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o) |
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|
156 | ? got : -1; |
|
|
157 | } |
|
|
158 | |
|
|
159 | static eio_ssize_t |
|
|
160 | eio__pwrite (int fd, void *buf, eio_ssize_t count, eio_off_t offset) |
|
|
161 | { |
|
|
162 | OVERLAPPED o = { 0 }; |
|
|
163 | DWORD got; |
|
|
164 | |
|
|
165 | o.Offset = offset; |
|
|
166 | o.OffsetHigh = offset >> 32; |
|
|
167 | |
|
|
168 | return WriteFile ((HANDLE)EIO_FD_TO_WIN32_HANDLE (fd), buf, count, &got, &o) |
|
|
169 | ? got : -1; |
|
|
170 | } |
|
|
171 | |
137 | /* rename() uses MoveFile, which fails to overwrite */ |
172 | /* rename() uses MoveFile, which fails to overwrite */ |
138 | #define rename(old,neu) eio__rename (old, neu) |
173 | #define rename(old,neu) eio__rename (old, neu) |
139 | |
174 | |
140 | static int |
175 | static int |
141 | eio__rename (const char *old, const char *neu) |
176 | eio__rename (const char *old, const char *neu) |
… | |
… | |
208 | #endif |
243 | #endif |
209 | |
244 | |
210 | #define D_NAME(entp) entp->d_name |
245 | #define D_NAME(entp) entp->d_name |
211 | |
246 | |
212 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
247 | /* POSIX_SOURCE is useless on bsd's, and XOPEN_SOURCE is unreliable there, too */ |
213 | #if __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__ |
248 | #if __FreeBSD__ || __NetBSD__ || __OpenBSD__ |
214 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
249 | #define _DIRENT_HAVE_D_TYPE /* sigh */ |
215 | #define D_INO(de) (de)->d_fileno |
250 | #define D_INO(de) (de)->d_fileno |
216 | #define D_NAMLEN(de) (de)->d_namlen |
251 | #define D_NAMLEN(de) (de)->d_namlen |
217 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
252 | #elif __linux || defined d_ino || _XOPEN_SOURCE >= 600 |
218 | #define D_INO(de) (de)->d_ino |
253 | #define D_INO(de) (de)->d_ino |
… | |
… | |
379 | static xmutex_t wrklock; |
414 | static xmutex_t wrklock; |
380 | static xmutex_t reslock; |
415 | static xmutex_t reslock; |
381 | static xmutex_t reqlock; |
416 | static xmutex_t reqlock; |
382 | static xcond_t reqwait; |
417 | static xcond_t reqwait; |
383 | |
418 | |
384 | #if !HAVE_PREADWRITE |
|
|
385 | /* |
|
|
386 | * make our pread/pwrite emulation safe against themselves, but not against |
|
|
387 | * normal read/write by using a mutex. slows down execution a lot, |
|
|
388 | * but that's your problem, not mine. |
|
|
389 | */ |
|
|
390 | static xmutex_t preadwritelock; |
|
|
391 | #endif |
|
|
392 | |
|
|
393 | typedef struct etp_worker |
419 | typedef struct etp_worker |
394 | { |
420 | { |
395 | struct tmpbuf tmpbuf; |
421 | struct tmpbuf tmpbuf; |
396 | |
422 | |
397 | /* locked by wrklock */ |
423 | /* locked by wrklock */ |
… | |
… | |
943 | } |
969 | } |
944 | |
970 | |
945 | /*****************************************************************************/ |
971 | /*****************************************************************************/ |
946 | /* work around various missing functions */ |
972 | /* work around various missing functions */ |
947 | |
973 | |
948 | #if !HAVE_PREADWRITE |
|
|
949 | # undef pread |
|
|
950 | # undef pwrite |
|
|
951 | # define pread eio__pread |
|
|
952 | # define pwrite eio__pwrite |
|
|
953 | |
|
|
954 | static eio_ssize_t |
|
|
955 | eio__pread (int fd, void *buf, size_t count, off_t offset) |
|
|
956 | { |
|
|
957 | eio_ssize_t res; |
|
|
958 | off_t ooffset; |
|
|
959 | |
|
|
960 | X_LOCK (preadwritelock); |
|
|
961 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
962 | lseek (fd, offset, SEEK_SET); |
|
|
963 | res = read (fd, buf, count); |
|
|
964 | lseek (fd, ooffset, SEEK_SET); |
|
|
965 | X_UNLOCK (preadwritelock); |
|
|
966 | |
|
|
967 | return res; |
|
|
968 | } |
|
|
969 | |
|
|
970 | static eio_ssize_t |
|
|
971 | eio__pwrite (int fd, void *buf, size_t count, off_t offset) |
|
|
972 | { |
|
|
973 | eio_ssize_t res; |
|
|
974 | off_t ooffset; |
|
|
975 | |
|
|
976 | X_LOCK (preadwritelock); |
|
|
977 | ooffset = lseek (fd, 0, SEEK_CUR); |
|
|
978 | lseek (fd, offset, SEEK_SET); |
|
|
979 | res = write (fd, buf, count); |
|
|
980 | lseek (fd, ooffset, SEEK_SET); |
|
|
981 | X_UNLOCK (preadwritelock); |
|
|
982 | |
|
|
983 | return res; |
|
|
984 | } |
|
|
985 | #endif |
|
|
986 | |
|
|
987 | #ifndef HAVE_UTIMES |
974 | #ifndef HAVE_UTIMES |
988 | |
975 | |
989 | # undef utimes |
976 | # undef utimes |
990 | # define utimes(path,times) eio__utimes (path, times) |
977 | # define utimes(path,times) eio__utimes (path, times) |
991 | |
978 | |
… | |
… | |
1032 | int res; |
1019 | int res; |
1033 | |
1020 | |
1034 | #if HAVE_SYS_SYNCFS |
1021 | #if HAVE_SYS_SYNCFS |
1035 | res = (int)syscall (__NR_syncfs, (int)(fd)); |
1022 | res = (int)syscall (__NR_syncfs, (int)(fd)); |
1036 | #else |
1023 | #else |
1037 | res = -1; |
1024 | res = EIO_ENOSYS (); |
1038 | errno = ENOSYS; |
|
|
1039 | #endif |
1025 | #endif |
1040 | |
1026 | |
1041 | if (res < 0 && errno == ENOSYS && fd >= 0) |
1027 | if (res < 0 && errno == ENOSYS && fd >= 0) |
1042 | sync (); |
1028 | sync (); |
1043 | |
1029 | |
… | |
… | |
1073 | } |
1059 | } |
1074 | |
1060 | |
1075 | static int |
1061 | static int |
1076 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
1062 | eio__fallocate (int fd, int mode, off_t offset, size_t len) |
1077 | { |
1063 | { |
1078 | #if HAVE_FALLOCATE |
1064 | #if HAVE_LINUX_FALLOCATE |
1079 | return fallocate (fd, mode, offset, len); |
1065 | return fallocate (fd, mode, offset, len); |
1080 | #else |
1066 | #else |
1081 | errno = ENOSYS; |
1067 | return EIO_ENOSYS (); |
1082 | return -1; |
|
|
1083 | #endif |
1068 | #endif |
1084 | } |
1069 | } |
1085 | |
1070 | |
1086 | #if !HAVE_READAHEAD |
1071 | #if !HAVE_READAHEAD |
1087 | # undef readahead |
1072 | # undef readahead |
… | |
… | |
1149 | |
1134 | |
1150 | /* according to source inspection, this is correct, and useful behaviour */ |
1135 | /* according to source inspection, this is correct, and useful behaviour */ |
1151 | if (sbytes) |
1136 | if (sbytes) |
1152 | res = sbytes; |
1137 | res = sbytes; |
1153 | |
1138 | |
1154 | # elif defined (__APPLE__) |
1139 | # elif defined __APPLE__ |
1155 | off_t sbytes = count; |
1140 | off_t sbytes = count; |
1156 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1141 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1157 | |
1142 | |
1158 | /* according to the manpage, sbytes is always valid */ |
1143 | /* according to the manpage, sbytes is always valid */ |
1159 | if (sbytes) |
1144 | if (sbytes) |
… | |
… | |
1186 | HANDLE h = TO_SOCKET (ifd); |
1171 | HANDLE h = TO_SOCKET (ifd); |
1187 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
1172 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
1188 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
1173 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
1189 | |
1174 | |
1190 | #else |
1175 | #else |
1191 | res = -1; |
1176 | res = EIO_ENOSYS (); |
1192 | errno = ENOSYS; |
|
|
1193 | #endif |
1177 | #endif |
1194 | |
1178 | |
1195 | /* we assume sendfile can copy at least 128mb in one go */ |
1179 | /* we assume sendfile can copy at least 128mb in one go */ |
1196 | if (res <= 128 * 1024 * 1024) |
1180 | if (res <= 128 * 1024 * 1024) |
1197 | { |
1181 | { |
… | |
… | |
1934 | #ifdef DT_FIFO |
1918 | #ifdef DT_FIFO |
1935 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
1919 | case DT_FIFO: ent->type = EIO_DT_FIFO; break; |
1936 | #endif |
1920 | #endif |
1937 | #ifdef DT_CHR |
1921 | #ifdef DT_CHR |
1938 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
1922 | case DT_CHR: ent->type = EIO_DT_CHR; break; |
1939 | #endif |
1923 | #endif |
1940 | #ifdef DT_MPC |
1924 | #ifdef DT_MPC |
1941 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
1925 | case DT_MPC: ent->type = EIO_DT_MPC; break; |
1942 | #endif |
1926 | #endif |
1943 | #ifdef DT_DIR |
1927 | #ifdef DT_DIR |
1944 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
1928 | case DT_DIR: ent->type = EIO_DT_DIR; break; |
1945 | #endif |
1929 | #endif |
1946 | #ifdef DT_NAM |
1930 | #ifdef DT_NAM |
1947 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
1931 | case DT_NAM: ent->type = EIO_DT_NAM; break; |
1948 | #endif |
1932 | #endif |
1949 | #ifdef DT_BLK |
1933 | #ifdef DT_BLK |
1950 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
1934 | case DT_BLK: ent->type = EIO_DT_BLK; break; |
1951 | #endif |
1935 | #endif |
1952 | #ifdef DT_MPB |
1936 | #ifdef DT_MPB |
1953 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
1937 | case DT_MPB: ent->type = EIO_DT_MPB; break; |
1954 | #endif |
1938 | #endif |
1955 | #ifdef DT_REG |
1939 | #ifdef DT_REG |
1956 | case DT_REG: ent->type = EIO_DT_REG; break; |
1940 | case DT_REG: ent->type = EIO_DT_REG; break; |
1957 | #endif |
1941 | #endif |
1958 | #ifdef DT_NWK |
1942 | #ifdef DT_NWK |
1959 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
1943 | case DT_NWK: ent->type = EIO_DT_NWK; break; |
1960 | #endif |
1944 | #endif |
1961 | #ifdef DT_CMP |
1945 | #ifdef DT_CMP |
1962 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
1946 | case DT_CMP: ent->type = EIO_DT_CMP; break; |
1963 | #endif |
1947 | #endif |
1964 | #ifdef DT_LNK |
1948 | #ifdef DT_LNK |
1965 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
1949 | case DT_LNK: ent->type = EIO_DT_LNK; break; |
1966 | #endif |
1950 | #endif |
1967 | #ifdef DT_SOCK |
1951 | #ifdef DT_SOCK |
1968 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
1952 | case DT_SOCK: ent->type = EIO_DT_SOCK; break; |
… | |
… | |
2252 | /*****************************************************************************/ |
2236 | /*****************************************************************************/ |
2253 | |
2237 | |
2254 | int ecb_cold |
2238 | int ecb_cold |
2255 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
2239 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
2256 | { |
2240 | { |
2257 | #if !HAVE_PREADWRITE |
|
|
2258 | X_MUTEX_CREATE (preadwritelock); |
|
|
2259 | #endif |
|
|
2260 | |
|
|
2261 | return etp_init (want_poll, done_poll); |
2241 | return etp_init (want_poll, done_poll); |
2262 | } |
2242 | } |
2263 | |
2243 | |
2264 | ecb_inline void |
2244 | ecb_inline void |
2265 | eio_api_destroy (eio_req *req) |
2245 | eio_api_destroy (eio_req *req) |
2266 | { |
2246 | { |
2267 | free (req); |
2247 | free (req); |
2268 | } |
2248 | } |
2269 | |
2249 | |
2270 | #define REQ(rtype) \ |
2250 | #define REQ(rtype) \ |
2271 | eio_req *req; \ |
2251 | eio_req *req; \ |
2272 | \ |
2252 | \ |
2273 | req = (eio_req *)calloc (1, sizeof *req); \ |
2253 | req = (eio_req *)calloc (1, sizeof *req); \ |
2274 | if (!req) \ |
2254 | if (!req) \ |
2275 | return 0; \ |
2255 | return 0; \ |
… | |
… | |
2495 | case EIO_CUSTOM: |
2475 | case EIO_CUSTOM: |
2496 | req->feed (req); |
2476 | req->feed (req); |
2497 | break; |
2477 | break; |
2498 | |
2478 | |
2499 | default: |
2479 | default: |
2500 | errno = ENOSYS; |
|
|
2501 | req->result = -1; |
2480 | req->result = EIO_ENOSYS (); |
2502 | break; |
2481 | break; |
2503 | } |
2482 | } |
2504 | |
2483 | |
2505 | req->errorno = errno; |
2484 | req->errorno = errno; |
2506 | } |
2485 | } |