commit 7226d972852afba286a7e46e9f3854667e1a816f
from: Stefan Sperling <stsp@stsp.name>
date: Thu Feb 21 21:20:06 2019 UTC

tog: better thread synchronization in scroll_down()

commit - bc6aae89c2eb2254cc7aa4297cd98af69ff62ea9
commit + 7226d972852afba286a7e46e9f3854667e1a816f
blob - 00edfdb7043b99a8442ce77fcf89ae1384e6e345
blob + e7f70edda49950f35b7b6ed51b3b93cf368a3c81
--- tog/tog.c
+++ tog/tog.c
@@ -1204,24 +1204,23 @@ scroll_down(struct commit_queue_entry **first_displaye
 
 	do {
 		pentry = TAILQ_NEXT(*last_displayed_entry, entry);
-		if (pentry == NULL)
-			*commits_needed = maxscroll + 20;
-		while (pentry == NULL) {
-			int errcode;
-			if (*log_complete)
-				break;
-			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);
-			pentry = TAILQ_NEXT(*last_displayed_entry, entry);
+		if (pentry == NULL) {
+			*commits_needed = maxscroll + 20;
+			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);
+			}
 		}
+		pentry = TAILQ_NEXT(*last_displayed_entry, entry);
 		if (pentry == NULL)
 			break;