From 529d74ec5d684daae48090943cefda57172664ef Mon Sep 17 00:00:00 2001
From: Jakob Schmid <jakobschmid25.12@gmail.com>
Date: Thu, 18 Jul 2024 13:32:50 +0200
Subject: [PATCH] randomize heartbeat send interval

---
 src-tauri/Cargo.lock                   | 1 +
 src-tauri/lib/codegen/Cargo.toml       | 1 +
 src-tauri/lib/codegen/src/scheduler.rs | 5 ++++-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 9efae39..02f4a34 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -394,6 +394,7 @@ name = "canzero-codegen"
 version = "0.1.0"
 dependencies = [
  "canzero-config",
+ "rand 0.8.5",
 ]
 
 [[package]]
diff --git a/src-tauri/lib/codegen/Cargo.toml b/src-tauri/lib/codegen/Cargo.toml
index 5f3c53f..7c1c210 100644
--- a/src-tauri/lib/codegen/Cargo.toml
+++ b/src-tauri/lib/codegen/Cargo.toml
@@ -7,6 +7,7 @@ edition = "2021"
 
 [dependencies]
 canzero-config = { path = "../config/" }
+rand = "0.8.5"
 
 [dev-dependencies]
 canzero-yaml = { path = "../yaml/" }
diff --git a/src-tauri/lib/codegen/src/scheduler.rs b/src-tauri/lib/codegen/src/scheduler.rs
index 1af006c..e144645 100644
--- a/src-tauri/lib/codegen/src/scheduler.rs
+++ b/src-tauri/lib/codegen/src/scheduler.rs
@@ -1,4 +1,5 @@
 use std::time::Duration;
+use rand::Rng;
 
 use canzero_config::config;
 
@@ -38,6 +39,8 @@ pub fn generate_scheduler(
         ));
     }
 
+    let heartbeat_interval = 100 + rand::thread_rng().gen_range(0..100);
+
     let num_fragmentation_jobs = node_config
             .object_entries()
             .iter()
@@ -302,7 +305,7 @@ static void schedule_get_resp_fragmentation_job(uint32_t *fragmentation_buffer,
 }}
 
 static job_t heartbeat_job;
-static const uint32_t heartbeat_interval = 100;
+static const uint32_t heartbeat_interval = {heartbeat_interval};
 static void schedule_heartbeat_job() {{
 {indent}heartbeat_job.climax = canzero_get_time();
 {indent}heartbeat_job.tag = HEARTBEAT_JOB_TAG;