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authorPřemysl Janouch <p.janouch@gmail.com>2015-06-21 21:50:47 +0200
committerPřemysl Janouch <p.janouch@gmail.com>2015-06-21 21:50:47 +0200
commite85c98f31588f2a8a5ad0aebf0e6e4840b8f3441 (patch)
tree263299cb12b12c666a56ac047bc20157af938f3f /degesch.c
parentce96be2d5edd516934d7f5d151effe22539b476c (diff)
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degesch: implement the rest of buffer merging
Diffstat (limited to 'degesch.c')
-rw-r--r--degesch.c35
1 files changed, 33 insertions, 2 deletions
diff --git a/degesch.c b/degesch.c
index 88ea34a..75ad5af 100644
--- a/degesch.c
+++ b/degesch.c
@@ -2652,7 +2652,39 @@ static void
buffer_merge (struct app_context *ctx,
struct buffer *buffer, struct buffer *merged)
{
- // TODO: try to merge the buffers as best as we can
+ // XXX: anything better to do? This situation is arguably rare and I'm
+ // not entirely sure what action to take.
+ buffer_send_status (ctx, buffer,
+ "Buffer %s was merged into this buffer", merged->name);
+
+ // Find all lines from "merged" newer than the newest line in "buffer"
+ struct buffer_line *start = merged->lines;
+ if (buffer->lines_tail)
+ while (start && start->when < buffer->lines_tail->when)
+ start = start->next;
+ if (!start)
+ return;
+
+ // Count how many of them we have
+ size_t n = 0;
+ for (struct buffer_line *iter = start; iter; iter = iter->next)
+ n++;
+
+ // Append the merged part to current lines in the buffer
+ buffer->lines_tail->next = start;
+ start->prev = buffer->lines_tail;
+
+ buffer->lines_tail = merged->lines_tail;
+ buffer->lines_count += n;
+
+ // And remove it from the original buffer
+ if (start == merged->lines_tail)
+ if (!(merged->lines_tail = start->prev))
+ merged->lines = NULL;
+ merged->lines_count -= n;
+
+ // XXX: we don't want to log this entry to a file
+ buffer_send_status (ctx, buffer, "End of merged content");
}
static void
@@ -2672,7 +2704,6 @@ buffer_rename (struct app_context *ctx,
// When there's a collision, there's not much else we can do
// other than somehow trying to merge them
buffer_merge (ctx, collision, buffer);
- // TODO: log a status message about the merge
if (ctx->current_buffer == buffer)
buffer_activate (ctx, collision);
buffer_remove (ctx, buffer);