From 54d73f67220e9940702b7d99956b6ee7144a10e7 Mon Sep 17 00:00:00 2001
From: Calvin Rose <calsrose@gmail.com>
Date: Wed, 21 Jul 2021 21:46:26 -0500
Subject: [PATCH] Make epoll the default on Linux for event loop
 implementations.

---
 meson.build          | 2 +-
 src/conf/janetconf.h | 2 +-
 src/include/janet.h  | 5 +++++
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/meson.build b/meson.build
index 55511b35..30888bd8 100644
--- a/meson.build
+++ b/meson.build
@@ -72,7 +72,7 @@ conf.set('JANET_NO_UMASK', not get_option('umask'))
 conf.set('JANET_NO_REALPATH', not get_option('realpath'))
 conf.set('JANET_NO_PROCESSES', not get_option('processes'))
 conf.set('JANET_SIMPLE_GETLINE', get_option('simple_getline'))
-conf.set('JANET_EV_EPOLL', get_option('epoll'))
+conf.set('JANET_EV_NO_EPOLL', not get_option('epoll'))
 conf.set('JANET_NO_THREADS', get_option('threads'))
 if get_option('os_name') != ''
   conf.set('JANET_OS_NAME', get_option('os_name'))
diff --git a/src/conf/janetconf.h b/src/conf/janetconf.h
index cd143c83..dfabc1cb 100644
--- a/src/conf/janetconf.h
+++ b/src/conf/janetconf.h
@@ -47,7 +47,7 @@
 /* #define JANET_STACK_MAX 16384 */
 /* #define JANET_OS_NAME my-custom-os */
 /* #define JANET_ARCH_NAME pdp-8 */
-/* #define JANET_EV_EPOLL */
+/* #define JANET_EV_NO_EPOLL */
 
 /* Custom vm allocator support */
 /* #include <mimalloc.h> */
diff --git a/src/include/janet.h b/src/include/janet.h
index c14aacdb..7e68236e 100644
--- a/src/include/janet.h
+++ b/src/include/janet.h
@@ -193,6 +193,11 @@ extern "C" {
 #define JANET_INT_TYPES
 #endif
 
+/* Enable or disable epoll on Linux */
+#if defined(JANET_LINUX) && !defined(JANET_EV_NO_EPOLL)
+#define JANET_EV_EPOLL
+#endif
+
 /* How to export symbols */
 #ifndef JANET_API
 #ifdef JANET_WINDOWS