1 files changed, 103 insertions, 0 deletions
diff --git a/erts/emulator/test/nif_SUITE_data/nif_mod.c b/erts/emulator/test/nif_SUITE_data/nif_mod.c
new file mode 100644
index 0000000000..18f676335a
--- /dev/null
+++ b/erts/emulator/test/nif_SUITE_data/nif_mod.c
@@ -0,0 +1,103 @@
+#include "erl_nif.h"
+#include <string.h>
+#include <assert.h>
+
+#include "nif_mod.h"
+
+
+static int static_cntA; /* zero by default */
+static int static_cntB = NIF_LIB_VER * 100;
+
+static void add_call(ErlNifEnv* env, NifModPrivData* data, const char* func_name)
+{
+    CallInfo* call = enif_alloc(env, sizeof(CallInfo)+strlen(func_name));
+    strcpy(call->func_name, func_name);
+    call->lib_ver = NIF_LIB_VER;
+    call->static_cntA = ++static_cntA;
+    call->static_cntB = ++static_cntB;
+    call->next = data->call_history;
+    data->call_history = call;
+}
+
+#define ADD_CALL(FUNC_NAME) add_call(env, enif_get_data(env),FUNC_NAME)
+
+static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
+{
+    NifModPrivData* data = enif_alloc(env, sizeof(NifModPrivData));
+    assert(data != NULL);
+    data->ref_cnt = 1;
+    data->call_history = NULL;
+    add_call(env, data, "load");
+
+    data->calls = 0;
+    *priv_data = data;
+    return 0;
+}
+
+static int reload(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
+{
+    add_call(env, *priv_data, "reload");
+    return 0;
+}
+
+static int upgrade(ErlNifEnv* env, void** priv_data, void** old_priv_data, ERL_NIF_TERM load_info)
+{
+    NifModPrivData* data = *old_priv_data;
+    add_call(env, data, "upgrade");
+    data->ref_cnt++;
+    *priv_data = *old_priv_data;    
+    return 0;
+}
+
+static void unload(ErlNifEnv* env, void* priv_data)
+{
+    NifModPrivData* data = priv_data;
+    add_call(env, data, "unload");
+    if (--data->ref_cnt == 0) {
+	enif_free(env, data);
+    }
+}
+
+static ERL_NIF_TERM lib_version(ErlNifEnv* env)
+{
+    ADD_CALL("lib_version");
+    return enif_make_int(env, NIF_LIB_VER);
+}
+
+static ERL_NIF_TERM call_history(ErlNifEnv* env)
+{
+    NifModPrivData* data = (NifModPrivData*) enif_get_data(env);
+    ERL_NIF_TERM list = enif_make_list(env, 0); /* NIL */
+
+    while (data->call_history != NULL) {
+	CallInfo* call = data->call_history;
+	ERL_NIF_TERM tpl = enif_make_tuple(env, 2, 
+					   enif_make_atom(env,call->func_name),
+					   enif_make_int(env,call->lib_ver));
+	list = enif_make_list_cell(env, tpl, list);
+	data->call_history = call->next;
+	enif_free(env,call);
+    }
+    return list;
+}
+
+static ERL_NIF_TERM get_priv_data_ptr(ErlNifEnv* env)
+{
+    ADD_CALL("get_priv_data_ptr");
+    return enif_make_ulong(env, (unsigned long)enif_get_data(env));
+}
+
+
+static ErlNifFunc nif_funcs[] =
+{
+    {"lib_version", 0, lib_version},
+    {"call_history", 0, call_history},
+    {"get_priv_data_ptr", 0, get_priv_data_ptr}
+};
+
+#if NIF_LIB_VER != 3
+ERL_NIF_INIT(nif_mod,nif_funcs,load,reload,upgrade,unload)
+#else
+ERL_NIF_INIT_GLOB /* avoid link error on windows */
+#endif
+