norohind/kmscon
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

console: add function to clear scrollback buffer

Browse Source 
The new function can be used by the UI to clear the current scrollback
buffer to free resources or whatever. It will also be used by the CSI
handler to reset the console.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This commit is contained in:
David Herrmann 2012-02-02 16:47:43 +01:00
parent 3560ae8eb1
commit 09e15d84e8
2 changed files with 22 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/console.h
View File

@ -58,6 +58,7 @@ int kmscon_buffer_resize(struct kmscon_buffer *buf, unsigned int x,
unsigned int y);
void kmscon_buffer_draw(struct kmscon_buffer *buf, struct kmscon_font *font);
void kmscon_buffer_set_max_sb(struct kmscon_buffer *buf, unsigned int max);
void kmscon_buffer_clear_sb(struct kmscon_buffer *buf);
unsigned int kmscon_buffer_get_width(struct kmscon_buffer *buf);
unsigned int kmscon_buffer_get_height(struct kmscon_buffer *buf);

27
src/console_cell.c
View File

@ -242,7 +242,6 @@ void kmscon_buffer_ref(struct kmscon_buffer *buf)
void kmscon_buffer_unref(struct kmscon_buffer *buf)
{
struct line *iter, *tmp;
unsigned int i;
if (!buf || !buf->ref)
@ -251,11 +250,7 @@ void kmscon_buffer_unref(struct kmscon_buffer *buf)
if (--buf->ref)
return;
for (iter = buf->sb_first; iter; ) {
tmp = iter;
iter = iter->next;
free_line(tmp);
}
kmscon_buffer_clear_sb(buf);
for (i = 0; i < buf->size_y; ++i)
free_line(buf->current[i]);
@ -364,6 +359,26 @@ void kmscon_buffer_set_max_sb(struct kmscon_buffer *buf, unsigned int max)
buf->sb_max = max;
}
/* clear scrollback buffer */
void kmscon_buffer_clear_sb(struct kmscon_buffer *buf)
{
struct line *iter, *tmp;
if (!buf)
return;
for (iter = buf->sb_first; iter; ) {
tmp = iter;
iter = iter->next;
free_line(tmp);
}
buf->sb_first = NULL;
buf->sb_last = NULL;
buf->sb_count = 0;
buf->position = NULL;
}
/*
* Resize the current console buffer
* This resizes the current buffer. We do not resize the lines or modify them in