build/libroot/fs_freebsd.cpp

25 haiku_freebsd_read(int fd, void *buf, size_t nbytes)
28 	if (fstat(fd, &st) != 0)
32 		return read(fd, buf, nbytes); // Is a file! Good :)
35 	if (ioctl(fd, DIOCGSECTORSIZE, &sectorSize) == -1)
38 	off_t cur = lseek(fd, 0, SEEK_CUR);
47 		return read(fd, buf, nbytes);
53 		off_t sdCur = lseek(fd, -(cur % sectorSize), SEEK_CUR);
57 		if (read(fd, tmpBlock, sectorSize) == -1)
63 		if (lseek(fd, -sectorSize + (cur % sectorSize) + nbytes, SEEK_CUR)
79 			if (lseek(fd, -(sectorSize - seekDiff), SEEK_CUR) == -1)
82 			off_t sdCur = lseek(fd,0,SEEK_CUR);
86 			if (read(fd, tmpBlock, sectorSize) == -1 )
95 			if (read(fd, ((char*)buf) + seekDiff, nbytes - seekDiff
103 			off_t sdCur = lseek(fd, 0, SEEK_CUR);
107 			if (read(fd, tmpBlock, sectorSize) == -1)
113 			if (lseek(fd, -(sectorSize - nbytesDiff), SEEK_CUR) == -1)
125 haiku_freebsd_write(int fd, const void *buf, size_t nbytes)
128 	if (fstat(fd, &st) != 0)
132 		return write(fd, buf, nbytes); // Is a file! Good :)
135 	if (ioctl(fd, DIOCGSECTORSIZE, &sectorSize) == -1)
138 	off_t cur = lseek(fd, 0, SEEK_CUR);
147 		return write(fd, buf, nbytes);
153 		off_t sdCur = lseek(fd, -(cur % sectorSize), SEEK_CUR);
157 		if (pread(fd, tmpBlock, sectorSize, sdCur) == -1)
161 		if (write(fd, tmpBlock, sectorSize) == -1)
165 		if (lseek(fd, -sectorSize + (cur % sectorSize) + nbytes, SEEK_CUR)
181 			if (lseek(fd, -(sectorSize - seekDiff), SEEK_CUR) == -1)
184 			off_t sdCur = lseek(fd, 0, SEEK_CUR);
188 			if (pread(fd, tmpBlock, sectorSize, sdCur) == -1)
193 			if (write(fd, tmpBlock, sectorSize) == -1)
199 			if (write(fd, ((char*)buf) + seekDiff, nbytes - seekDiff
207 			off_t sdCur = lseek(fd, 0, SEEK_CUR);
211 			if (pread(fd, tmpBlock, sectorSize, sdCur) == -1)
215 			if (write(fd, tmpBlock, sectorSize) == -1)
219 			if (lseek(fd, -(sectorSize - nbytesDiff), SEEK_CUR) == -1)
231 haiku_freebsd_readv(int fd, const struct iovec *vecs, size_t count)
236 		ssize_t currentRead = haiku_freebsd_read(fd, vecs[i].iov_base,
253 haiku_freebsd_writev(int fd, const struct iovec *vecs, size_t count)
258 		ssize_t written = haiku_freebsd_write(fd, vecs[i].iov_base,