From 98282c5a420ccc45be9d8de939fe6ea38fc779d6 Mon Sep 17 00:00:00 2001
From: hodasemi <michaelh.95@t-online.de>
Date: Tue, 10 Jan 2023 19:33:45 +0100
Subject: [PATCH] truncate log file at every start

---
 src/lib.rs | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index f7f1c91..c436657 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -7,7 +7,13 @@ mod instance_handles;
 #[macro_use]
 mod device_handles;
 
-use std::{fs::OpenOptions, io::Write, mem, os::raw::c_char, ptr};
+use std::{
+    fs::{File, OpenOptions},
+    io::Write,
+    mem,
+    os::raw::c_char,
+    ptr,
+};
 
 use device_handles::*;
 use enums::*;
@@ -15,11 +21,15 @@ use instance_handles::*;
 use structs::*;
 use vulkan_sys::prelude::*;
 
+const LOG_FILE: &'static str = "/home/michael/rf2_vk_hud.log";
+
 #[no_mangle]
 #[allow(non_snake_case)]
 pub extern "C" fn vkNegotiateLoaderLayerInterfaceVersion(
     pVersionStruct: *mut VkNegotiateLayerInterface,
 ) -> VkResult {
+    File::create(LOG_FILE).unwrap();
+
     write_log("======================================================");
     write_log("================= New Negotiation ====================");
     write_log("======================================================");
@@ -43,8 +53,6 @@ extern "system" fn get_device_proc_addr(
     _device: VkDevice,
     function_name: *const c_char,
 ) -> PFN_vkVoidFunction {
-    write_log("-> vulkan layer device proc addr");
-
     get_function(function_name)
 }
 
@@ -53,8 +61,6 @@ extern "system" fn get_instance_proc_addr(
     _instance: VkInstance,
     function_name: *const c_char,
 ) -> PFN_vkVoidFunction {
-    write_log("-> vulkan layer instance proc addr");
-
     get_function(function_name)
 }
 
@@ -370,7 +376,7 @@ fn write_log(msg: impl ToString) {
     let mut file = OpenOptions::new()
         .append(true)
         .create(true)
-        .open("/home/michael/rf2_vk_hud.log")
+        .open(LOG_FILE)
         .unwrap();
 
     file.write_all(format!("{}\n", msg.to_string()).as_bytes())