--- /dev/null
+/* a fast and simple context switching library */
+
+/* Copyright (c) 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#ifndef _XBT_CONTEXT_H
+#define _XBT_CONTEXT_H
+
+#include "xbt/swag.h"
+#include "simix/private.h"
+
+SG_BEGIN_DECL()
+/*Hack: let msg load directly the right factory */
+typedef void (*SIMIX_ctx_factory_initializer_t)(smx_context_factory_t*);
+extern SIMIX_ctx_factory_initializer_t factory_initializer_to_use;
+
+extern int _surf_parallel_contexts;
+smx_context_t smx_current_context;
+
+/* *********************** */
+/* Context type definition */
+/* *********************** */
+/* the following function pointers types describe the interface that all context
+ concepts must implement */
+/* each context type derive from this structure, so they must contain this structure
+ * at their begining -- OOP in C :/ */
+typedef struct s_smx_context {
+ s_xbt_swag_hookup_t hookup;
+ xbt_main_func_t code;
+ int argc;
+ char **argv;
+ void_pfn_smxprocess_t cleanup_func;
+ void *data; /* Here SIMIX stores the smx_process_t containing the context */
+} s_smx_ctx_base_t;
+
+/* methods of this class */
+void smx_ctx_base_factory_init(smx_context_factory_t *factory);
+int smx_ctx_base_factory_finalize(smx_context_factory_t *factory);
+
+smx_context_t
+smx_ctx_base_factory_create_context_sized(size_t size,
+ xbt_main_func_t code, int argc,
+ char **argv,
+ void_pfn_smxprocess_t cleanup,
+ void* data);
+void smx_ctx_base_free(smx_context_t context);
+void smx_ctx_base_stop(smx_context_t context);
+smx_context_t smx_ctx_base_self(void);
+void *smx_ctx_base_get_data(smx_context_t context);
+
+SG_END_DECL()
+
+#endif /* !_XBT_CONTEXT_H */
