typedef long vi_addr;
typedef long vi_motion;
+typedef void vi_file;
struct visor;
struct vi_buffer;
struct vi_span {
- vi_addr beg, end;
+ vi_addr beg;
+ unsigned long size;
};
enum vi_motdir {
};
struct vi_fileops {
- void *(*open)(const char *path);
- long (*size)(void *file);
- void (*close)(void *file);
- void *(*map)(void *file);
- void (*unmap)(void *file);
- long (*read)(void *file, void *buf, long count);
- long (*write)(void *file, void *buf, long count);
- long (*seek)(void *file, long offs, int whence);
+ vi_file *(*open)(const char *path);
+ long (*size)(vi_file *file);
+ void (*close)(vi_file *file);
+ void *(*map)(vi_file *file);
+ void (*unmap)(vi_file *file);
+ long (*read)(vi_file *file, void *buf, long count);
+ long (*write)(vi_file *file, void *buf, long count);
+ long (*seek)(vi_file *file, long offs, int whence);
};
struct vi_ttyops {
void vi_destroy(struct visor *vi);
void vi_set_fileops(struct visor *vi, struct vi_fileops *fop);
+void vi_set_ttyops(struct visor *vi, struct vi_ttyops *tty);
/* vi_new_buf creates a new buffer and inserts it in the buffer list. If the
* path pointer is null, the new buffer will be empty, otherwise it's as if it
int vi_num_buf(struct visor *vi);
struct vi_buffer *vi_getcur_buf(struct visor *vi);
-int vi_setcur_buf(struct visor *vi, struct vi_buffer *vb);
+void vi_setcur_buf(struct visor *vi, struct vi_buffer *vb);
struct vi_buffer *vi_next_buf(struct visor *vi);
struct vi_buffer *vi_prev_buf(struct visor *vi);
+/* reset a buffer to the newly created state, freeing all resources */
+void vi_buf_reset(struct vi_buffer *vb);
+
/* Read a file into the buffer.
* Returns 0 on success, -1 on failure.
*/