From ddb185aaa2a5ef6a70c130675826c33f90057591 Mon Sep 17 00:00:00 2001
From: cbdev <cb@cbcdn.com>
Date: Mon, 5 Jun 2017 20:53:02 +0200
Subject: MIDI backend start procedure

---
 backend.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'backend.c')

diff --git a/backend.c b/backend.c
index f49bd91..2eb6fcf 100644
--- a/backend.c
+++ b/backend.c
@@ -9,7 +9,7 @@ static instance** instances = NULL;
 static size_t nchannels = 0;
 static channel** channels = NULL;
 
-channel* mm_channel(instance* i, uint64_t ident){
+channel* mm_channel(instance* i, uint64_t ident, uint8_t create){
 	size_t u;
 	for(u = 0; u < nchannels; u++){
 		if(channels[u]->instance == 0 && channels[u]->ident == ident){
@@ -17,6 +17,10 @@ channel* mm_channel(instance* i, uint64_t ident){
 		}
 	}
 
+	if(!create){
+		return NULL;
+	}
+
 	channel** new_chan = realloc(channels, (nchannels + 1) * sizeof(channel*));
 	if(!new_chan){
 		fprintf(stderr, "Failed to allocate memory\n");
-- 
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