[c-host] restructure project to use cmake

c-host/include/interface/platform.h

@@ -0,0 +1,51 @@
+/*
+Looking Glass - KVM FrameRelay (KVMFR) Client
+Copyright (C) 2017-2019 Geoffrey McRae <geoff@hostfission.com>
+https://looking-glass.hostfission.com
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#pragma once
+
+#include <stdbool.h>
+
+int  app_main();
+void app_quit();
+
+// these must be implemented for each OS
+
+unsigned int os_shmemSize();
+bool         os_shmemMmap(void **ptr);
+void         os_shmemUnmap();
+
+// os specific thread functions
+
+typedef struct osThreadHandle osThreadHandle;
+typedef int (*osThreadFunction)(void * opaque);
+
+bool         os_createThread(const char * name, osThreadFunction function, void * opaque, osThreadHandle ** handle);
+bool         os_joinThread  (osThreadHandle * handle, int * resultCode);
+
+// os specific event functions
+
+#define TIMEOUT_INFINITE ((unsigned int)~0)
+
+typedef struct osEventHandle osEventHandle;
+
+osEventHandle * os_createEvent(bool autoReset);
+void            os_freeEvent  (osEventHandle * handle);
+bool            os_waitEvent  (osEventHandle * handle, unsigned int timeout);
+bool            os_signalEvent(osEventHandle * handle);
+bool            os_resetEvent (osEventHandle * handle);