diff options
Diffstat (limited to 'com32/lib/sys/file.h')
| -rw-r--r-- | com32/lib/sys/file.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/com32/lib/sys/file.h b/com32/lib/sys/file.h index 12492264..4bcca2e5 100644 --- a/com32/lib/sys/file.h +++ b/com32/lib/sys/file.h @@ -69,7 +69,7 @@ struct output_dev { ssize_t (*write)(struct file_info *, const void *, size_t); int (*close)(struct file_info *); int (*open)(struct file_info *); - const struct output_dev *fallback; /* Fallback option for certain consoles */ + const struct output_dev *fallback; /* Fallback option for some consoles */ }; /* File structure */ @@ -97,9 +97,21 @@ struct file_info { char *datap; /* Current data pointer */ void *pvt; /* Private pointer for driver */ char *buf; /* Data buffer */ + size_t unread_bytes; /* Valid bytes in unread_buf */ + char unread_buf[64]; /* unread() data */ } i; }; +static inline size_t unread_free(struct file_info *fp) +{ + return sizeof fp->i.unread_buf - fp->i.unread_bytes; +} + +static inline char *unread_data(struct file_info *fp) +{ + return fp->i.unread_buf + unread_free(fp); +} + extern struct file_info __file_info[NFILES]; /* Line input discipline */ |