From e5b35b23cd405e487d2c78d3562daad6d12b0fce Mon Sep 17 00:00:00 2001
From: void <>
Date: Fri, 31 Jan 2025 21:44:41 +0000
Subject: [PATCH] (lua) don't try to dump stack-index 0, always provide L to
 monitor

FossilOrigin-Name: af189a7e576f8a6b1c920fe8f6af06a7681bb10add9f47dd8244e058894e02a9
---
 src/engine/alt/trace.c     | 2 +-
 src/engine/arcan_monitor.c | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/engine/alt/trace.c b/src/engine/alt/trace.c
index 3753d3fc..45abbce7 100644
--- a/src/engine/alt/trace.c
+++ b/src/engine/alt/trace.c
@@ -145,7 +145,7 @@ void alt_trace_dumptable_raw(lua_State* L, int ofs, int cap, FILE* out)
 void alt_trace_dumpstack_raw(lua_State* L, FILE* out)
 {
 	int top = lua_gettop(L);
-	while (top >= 0){
+	while (top > 0){
 		fprintf(out, "type=stack:index=%d:name=%d:var", top, top);
 		alt_trace_print_type(L, top, "\n", out);
 		top--;
diff --git a/src/engine/arcan_monitor.c b/src/engine/arcan_monitor.c
index acea1856..7326acf7 100644
--- a/src/engine/arcan_monitor.c
+++ b/src/engine/arcan_monitor.c
@@ -978,6 +978,7 @@ void arcan_monitor_finish(bool ok)
 	arcan_monitor_watchdog(NULL, NULL);
 }
 
+extern struct arcan_luactx* main_lua_context;
 void arcan_monitor_tick(int n)
 {
 	static size_t count;
@@ -988,7 +989,8 @@ void arcan_monitor_tick(int n)
 			.events = POLLIN
 		};
 		if (1 == poll(&pfd, 1, 0)){
-			arcan_monitor_watchdog(NULL, NULL);
+			arcan_monitor_watchdog(
+				(lua_State*)main_lua_context, NULL);
 		}
 	}