REORG: include: create new file haproxy/api.h

This file includes everything that must be guaranteed to be available to
any buildable file in the project (including the contrib/ subdirs). For
now it includes <haproxy/api-t.h> so that standard integer types and
compiler macros are known, <common/initcall.h> to ease dynamic registration
of init functions, and <common/tools.h> for a few MIN/MAX macros.

version.h should probably also be added, though at the moment it doesn't
bring a great value.

All files which currently include the ones above should now switch to
haproxy/api.h or haproxy/api-t.h instead. This should also reduce build
time by having a single guard for several files at once.

diff --git a/include/haproxy/api.h b/include/haproxy/api.h
new file mode 100644 (file)
index 0000000..305e860
--- /dev/null
+++ b/include/haproxy/api.h
@@ -0,0 +1,37 @@
+/*
+ * include/haproxy/api.h
+ *
+ * Include wrapper that assembles all includes required by every haproxy file.
+ * Please do not add direct definitions into this file.
+ *
+ * Copyright (C) 2020 Willy Tarreau - w@1wt.eu
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _HAPROXY_BASE_H
+#define _HAPROXY_BASE_H
+
+#include <common/initcall.h>
+#include <common/tools.h>
+#include <haproxy/api-t.h>
+
+#endif