From 2107df3c994f6d03a06898de303bb72ecac48b93 Mon Sep 17 00:00:00 2001
From: Mackenzie Clark <mackenzie.a.z.c@gmail.com>
Date: Thu, 27 Dec 2018 06:57:00 -0800
Subject: [PATCH] only support clock id 0

---
 src/apis/emscripten/time.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/apis/emscripten/time.rs b/src/apis/emscripten/time.rs
index 7b3ef97fa..614a38540 100644
--- a/src/apis/emscripten/time.rs
+++ b/src/apis/emscripten/time.rs
@@ -40,7 +40,11 @@ pub extern "C" fn _clock_gettime(clk_id: c_int, tp: c_int, instance: &mut Instan
         tv_nsec: i32,
     }
 
-    let timespec = time::get_time();
+    let timespec = match clk_id {
+        0 => time::get_time(),
+        1 => panic!("Monotonic clock is not supported."),
+        _ => panic!("Clock is not supported."),
+    };
 
     unsafe {
         let timespec_struct_ptr = instance.memory_offset_addr(0, tp as _) as *mut GuestTimeSpec;