Add code to test u-he plugin load with c and python

source/tests/Makefile

@@ -186,6 +186,10 @@ WineJack: WineJack.cpp
 
 # --------------------------------------------------------------
 
+carla-uhe-test: carla-uhe-test.c
+	$(CC) $< -Wall -Wextra -O0 -g -I../backend -I../includes -DREAL_BUILD -ldl -o $@
+	./$@
+
 sem: sem.cpp $(MODULEDIR)/jackbridge/*
 	$(CXX) $< -Wall -Wextra -O0 -g -I../utils -I../includes -DREAL_BUILD -o $@
 	./$@

source/tests/carla-uhe-test.c

@@ -0,0 +1,80 @@
+
+#include "CarlaHost.h"
+
+#include <dlfcn.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <unistd.h>
+
+// --------------------------------------------------------------------------------------------------------
+
+static volatile bool term = false;
+
+static void signalHandler(int sig)
+{
+    switch (sig)
+    {
+    case SIGINT:
+    case SIGTERM:
+        term = true;
+        break;
+    }
+}
+
+// --------------------------------------------------------------------------------------------------------
+
+typedef bool (*carla_engine_init_func)(const char* driverName, const char* clientName);
+typedef void (*carla_engine_idle_func)(void);
+typedef bool (*carla_is_engine_running_func)(void);
+typedef bool (*carla_engine_close_func)(void);
+typedef bool (*carla_add_plugin_func)(BinaryType btype, PluginType ptype,
+                                      const char* filename, const char* name, const char* label, int64_t uniqueId,
+                                      const void* extraPtr, uint options);
+typedef const char* (*carla_get_last_error_func)(void);
+
+int main(void)
+{
+    void* lib = dlopen("/home/falktx/FOSS/GIT-mine/falkTX/Carla/bin/libcarla_standalone2.so", RTLD_NOW|RTLD_GLOBAL);
+
+    if (!lib)
+    {
+        printf("Failed to load carla lib\n");
+        return 1;
+    }
+
+    const carla_engine_init_func       carla_engine_init       = dlsym(lib, "carla_engine_init");
+    const carla_engine_idle_func       carla_engine_idle       = dlsym(lib, "carla_engine_idle");
+    const carla_is_engine_running_func carla_is_engine_running = dlsym(lib, "carla_is_engine_running");
+    const carla_engine_close_func      carla_engine_close      = dlsym(lib, "carla_engine_close");
+    const carla_add_plugin_func        carla_add_plugin        = dlsym(lib, "carla_add_plugin");
+    const carla_get_last_error_func    carla_get_last_error    = dlsym(lib, "carla_get_last_error");
+
+    if (! carla_engine_init("JACK", "Carla-uhe-test"))
+    {
+        printf("Engine failed to initialize, possible reasons:\n%s\n", carla_get_last_error());
+        return 1;
+    }
+
+    if (! carla_add_plugin(BINARY_NATIVE, PLUGIN_VST2, "/home/falktx/.vst/u-he/ACE.64.so", "", "", 0, NULL, 0))
+    {
+        printf("Failed to load plugin, possible reasons:\n%s\n", carla_get_last_error());
+        carla_engine_close();
+        return 1;
+    }
+
+    signal(SIGINT,  signalHandler);
+    signal(SIGTERM, signalHandler);
+
+    while (carla_is_engine_running() && ! term)
+    {
+        carla_engine_idle();
+        sleep(1);
+    }
+
+    carla_engine_close();
+
+    return 0;
+}
+
+// --------------------------------------------------------------------------------------------------------

source/tests/carla-uhe-test.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# --------------------------------------------------------------------------------------------------------
+
+from carla_backend import *
+from signal import signal, SIGINT, SIGTERM
+from time import sleep
+
+# --------------------------------------------------------------------------------------------------------
+
+global term
+term = False
+def signalHandler(sig, frame):
+    if sig in (SIGINT, SIGTERM):
+        global term
+        term = True
+
+# --------------------------------------------------------------------------------------------------------
+
+host = CarlaHostDLL("/home/falktx/FOSS/GIT-mine/falkTX/Carla/bin/libcarla_standalone2.so")
+
+if not host.engine_init("JACK", "Carla-uhe-test"):
+    print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())
+    sys.exit(1)
+
+if not host.add_plugin(BINARY_NATIVE, PLUGIN_VST2, "/home/falktx/.vst/u-he/ACE.64.so", "", "", 0, None, 0):
+    print("Failed to load plugin, possible reasons:\n%s" % host.get_last_error())
+    host.engine_close()
+    sys.exit(1)
+
+signal(SIGINT,  signalHandler)
+signal(SIGTERM, signalHandler)
+
+while host.is_engine_running() and not term:
+    host.engine_idle()
+    sleep(0.5)
+
+host.engine_close()
+
+# --------------------------------------------------------------------------------------------------------