diff options
Diffstat (limited to 'extras/mini-os/include/blkfront.h')
| -rw-r--r-- | extras/mini-os/include/blkfront.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/extras/mini-os/include/blkfront.h b/extras/mini-os/include/blkfront.h index 724137eb45..3528af9d23 100644 --- a/extras/mini-os/include/blkfront.h +++ b/extras/mini-os/include/blkfront.h @@ -28,7 +28,17 @@ struct blkfront_info }; struct blkfront_dev *init_blkfront(char *nodename, struct blkfront_info *info); #ifdef HAVE_LIBC +#include <sys/stat.h> +/* POSIX IO functions: + * use blkfront_open() to get a file descriptor to the block device + * Don't use the other blkfront posix functions here directly, instead use + * read(), write(), lseek() and fstat() on the file descriptor + */ int blkfront_open(struct blkfront_dev *dev); +int blkfront_posix_rwop(int fd, uint8_t* buf, size_t count, int write); +#define blkfront_posix_write(fd, buf, count) blkfront_posix_rwop(fd, (uint8_t*)buf, count, 1) +#define blkfront_posix_read(fd, buf, count) blkfront_posix_rwop(fd, (uint8_t*)buf, count, 0) +int blkfront_posix_fstat(int fd, struct stat* buf); #endif void blkfront_aio(struct blkfront_aiocb *aiocbp, int write); #define blkfront_aio_read(aiocbp) blkfront_aio(aiocbp, 0) |