From 464dcf87426614672ff9be1e0b10f0e8b2552ba5 Mon Sep 17 00:00:00 2001
From: Torsten Grote <t@grobox.de>
Date: Thu, 20 Jun 2019 12:18:43 -0300
Subject: [PATCH] send attachments one after the other with delay

---
 .../briar/messaging/MessagingManagerImpl.java | 22 ++++++++++---------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/briar-core/src/main/java/org/briarproject/briar/messaging/MessagingManagerImpl.java b/briar-core/src/main/java/org/briarproject/briar/messaging/MessagingManagerImpl.java
index 5b42cfb2d..304c1e47d 100644
--- a/briar-core/src/main/java/org/briarproject/briar/messaging/MessagingManagerImpl.java
+++ b/briar-core/src/main/java/org/briarproject/briar/messaging/MessagingManagerImpl.java
@@ -253,18 +253,20 @@ class MessagingManagerImpl implements MessagingManager, IncomingMessageHook,
 			}
 			// Mark attachments as shared and permanent now we're ready to send
 			// FIXME: Revert
-			scheduler.schedule(() -> {
-				try {
-					db.transaction(false, txn1 -> {
-						for (AttachmentHeader a : m.getAttachmentHeaders()) {
+			int i = 15;
+			for (AttachmentHeader a : m.getAttachmentHeaders()) {
+				scheduler.schedule(() -> {
+					try {
+						db.transaction(false, txn1 -> {
 							db.setMessageShared(txn1, a.getMessageId());
 							db.setMessagePermanent(txn1, a.getMessageId());
-						}
-					});
-				} catch (DbException e) {
-					logException(LOG, WARNING, e);
-				}
-			}, 30, SECONDS);
+						});
+					} catch (DbException e) {
+						logException(LOG, WARNING, e);
+					}
+				}, i, SECONDS);
+				i *= 2;
+			}
 			clientHelper.addLocalMessage(txn, m.getMessage(), meta, true,
 					false);
 			messageTracker.trackOutgoingMessage(txn, m.getMessage());