[PATCH weston v4 6/9] xwm: dump_property() to use FILE internally

[Emre Ucan]

From: Pekka Paalanen <pq at iki.fi>

Write the output of dump_property() out in one log call. When multiple
processes (weston and Xwayland) are writing to the same file, this will
keep the property dump uninterrupted by Xwayland debug prints.

This is also preparation for more development in the same direction.

Signed-off-by: Pekka Paalanen <pq at iki.fi>
Signed-off-by: Maniraj Devadoss <Maniraj.Devadoss at in.bosch.com>
---
 xwayland/window-manager.c | 42 +++++++++++++++++++++++++++---------------
 1 file changed, 27 insertions(+), 15 deletions(-)

diff --git a/xwayland/window-manager.c b/xwayland/window-manager.c
index 3e8c4c7..b66b787 100644
--- a/xwayland/window-manager.c
+++ b/xwayland/window-manager.c
@@ -384,22 +384,29 @@ dump_property(struct weston_wm *wm,
 	xcb_atom_t *atom_value;
 	int width, len;
 	uint32_t i;
+	FILE *fp;
+	char *logstr;
+	size_t logsize;
 
-	width = wm_log_continue("%s: ", get_atom_name(wm->conn, property));
-	if (reply == NULL) {
-		wm_log_continue("(no reply)\n");
+	fp = open_memstream(&logstr, &logsize);
+	if (!fp)
 		return;
+
+	width = fprintf(fp, "%s: ", get_atom_name(wm->conn, property));
+	if (reply == NULL) {
+		fprintf(fp, "(no reply)\n");
+		goto out;
 	}
 
-	width += wm_log_continue("%s/%d, length %d (value_len %d): ",
-				 get_atom_name(wm->conn, reply->type),
-				 reply->format,
-				 xcb_get_property_value_length(reply),
-				 reply->value_len);
+	width += fprintf(fp, "%s/%d, length %d (value_len %d): ",
+			 get_atom_name(wm->conn, reply->type),
+			 reply->format,
+			 xcb_get_property_value_length(reply),
+			 reply->value_len);
 
 	if (reply->type == wm->atom.incr) {
 		incr_value = xcb_get_property_value(reply);
-		wm_log_continue("%d\n", *incr_value);
+		fprintf(fp, "%d\n", *incr_value);
 	} else if (reply->type == wm->atom.utf8_string ||
 	      reply->type == wm->atom.string) {
 		text_value = xcb_get_property_value(reply);
@@ -407,24 +414,29 @@ dump_property(struct weston_wm *wm,
 			len = 40;
 		else
 			len = reply->value_len;
-		wm_log_continue("\"%.*s\"\n", len, text_value);
+		fprintf(fp, "\"%.*s\"\n", len, text_value);
 	} else if (reply->type == XCB_ATOM_ATOM) {
 		atom_value = xcb_get_property_value(reply);
 		for (i = 0; i < reply->value_len; i++) {
 			name = get_atom_name(wm->conn, atom_value[i]);
 			if (width + strlen(name) + 2 > 78) {
-				wm_log_continue("\n    ");
+				fprintf(fp, "\n    ");
 				width = 4;
 			} else if (i > 0) {
-				width +=  wm_log_continue(", ");
+				width +=  fprintf(fp, ", ");
 			}
 
-			width +=  wm_log_continue("%s", name);
+			width +=  fprintf(fp, "%s", name);
 		}
-		wm_log_continue("\n");
+		fprintf(fp, "\n");
 	} else {
-		wm_log_continue("huh?\n");
+		fprintf(fp, "huh?\n");
 	}
+
+out:
+	if (fclose(fp) == 0)
+		wm_log_continue("%s", logstr);
+	free(logstr);
 }
 
 static void
-- 
2.7.4