commit 7aafa0d11a8f22f82c826f4c7890174d3d7fa381
from: Stefan Sperling <stsp@stsp.name>
date: Fri Feb 22 01:05:06 2019 UTC

better interactivity while loading commits in tog log view

commit - 5e756114a5ceef5332d048878ca856fd878cb9c2
commit + 7aafa0d11a8f22f82c826f4c7890174d3d7fa381
blob - 64e4bd077d23c48891fd59e49a7349a55f9cb238
blob + 22c411be2ca720ffc0fbf2e05fdfd3f3cd81ef0a
--- tog/tog.c
+++ tog/tog.c
@@ -1255,35 +1255,31 @@ scroll_down(struct tog_view *view,
 
 	if (*last_displayed_entry == NULL)
 		return NULL;
-
-	do {
-		pentry = TAILQ_NEXT(*last_displayed_entry, entry);
-		if (pentry == NULL && !*log_complete) {
-			(*commits_needed)++;
 
-			if (nscrolled == 0) {
-				/* Redraw screen for "loading..." message. */
-				err = show_log_view(view);
-				if (err)
-					return err;
-				update_panels();
-				doupdate();
-			}
+	pentry = TAILQ_NEXT(*last_displayed_entry, entry);
+	if (pentry == NULL && !*log_complete) {
+		int errcode;
+		if (*commits_needed > 0)
+			return NULL;
+		(*commits_needed) = maxscroll;
+		errcode = pthread_cond_signal(need_commits);
+		if (errcode)
+			return got_error_set_errno(errcode);
+		errcode = pthread_mutex_unlock(&tog_mutex);
+		if (errcode)
+			return got_error_set_errno(errcode);
+		pthread_yield();
+		errcode = pthread_mutex_lock(&tog_mutex);
+		if (errcode)
+			return got_error_set_errno(errcode);
+		if (*commits_needed > 0) {
+			/* Thread is not done yet; lose a key press
+			 * and let the user retry... */
+			return NULL;
+		}
+	}
 
-			while (*commits_needed > 0) {
-				int errcode;
-				errcode = pthread_cond_signal(need_commits);
-				if (errcode)
-					return got_error_set_errno(errcode);
-				errcode = pthread_mutex_unlock(&tog_mutex);
-				if (errcode)
-					return got_error_set_errno(errcode);
-				pthread_yield();
-				errcode = pthread_mutex_lock(&tog_mutex);
-				if (errcode)
-					return got_error_set_errno(errcode);
-			}
-		}
+	do {
 		pentry = TAILQ_NEXT(*last_displayed_entry, entry);
 		if (pentry == NULL)
 			break;