[PATCH] Use int64 and int32 types with GCC atomics

[Alessandro Ghedini]

# HG changeset patch
# User Alessandro Ghedini <alessandro at ghedini.me>
# Date 1474033303 -3600
#      Fri Sep 16 14:41:43 2016 +0100
# Node ID 64afed0e819b9af65e7afa89baad3313f1db18d4
# Parent  e83540f825cd8c936f4f7f1e0336279d66446606
Use int64 and int32 types with GCC atomics

It's not quite clear if this was done on purpose, but it seems a good
idea to use appropriately sized types when GCC atomics are used.

diff -r e83540f825cd -r 64afed0e819b src/os/unix/ngx_atomic.h
--- a/src/os/unix/ngx_atomic.h	Thu Sep 15 15:36:02 2016 +0300
+++ b/src/os/unix/ngx_atomic.h	Fri Sep 16 14:41:43 2016 +0100
@@ -94,13 +94,18 @@
 
 #define NGX_HAVE_ATOMIC_OPS  1
 
-typedef long                        ngx_atomic_int_t;
-typedef unsigned long               ngx_atomic_uint_t;
+#if (NGX_PTR_SIZE == 8)
 
-#if (NGX_PTR_SIZE == 8)
+typedef int64_t                     ngx_atomic_int_t;
+typedef uint64_t                    ngx_atomic_uint_t;
 #define NGX_ATOMIC_T_LEN            (sizeof("-9223372036854775808") - 1)
+
 #else
+
+typedef int32_t                     ngx_atomic_int_t;
+typedef uint32_t                    ngx_atomic_uint_t;
 #define NGX_ATOMIC_T_LEN            (sizeof("-2147483648") - 1)
+
 #endif
 
 typedef volatile ngx_atomic_uint_t  ngx_atomic_t;