Introduce ei_init()

You previously had to initialize ei via erl_init() which
implied that you were forced to link against the erl_interface
even when not using it (besides initializing ei).

2 files changed, 34 insertions, 0 deletions

diff --git a/lib/erl_interface/src/misc/ei_init.c b/lib/erl_interface/src/misc/ei_init.c
new file mode 100644
index 0000000000..5357968657
--- /dev/null
+++ b/lib/erl_interface/src/misc/ei_init.c
@@ -0,0 +1,32 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2019. All Rights Reserved.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+#include "ei.h"
+#include "ei_resolve.h"
+#include "ei_internal.h"
+
+int
+ei_init(void)
+{
+    int error = ei_init_connect();
+    if (error)
+        return error;
+    return ei_init_resolve();
+}
diff --git a/lib/erl_interface/src/misc/ei_internal.h b/lib/erl_interface/src/misc/ei_internal.h
index 0c58245c0a..f28dd6d668 100644
--- a/lib/erl_interface/src/misc/ei_internal.h
+++ b/lib/erl_interface/src/misc/ei_internal.h
@@ -153,6 +153,8 @@
 
 extern int ei_tracelevel;
 
+int ei_init_connect(void);
+
 void ei_trace_printf(const char *name, int level, const char *format, ...);
 
 int ei_internal_use_r9_pids_ports(void);