X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a4aa7f5908948df11fbbc0b6fdf343773c568272..42ad1e118f005d56af6f9e87d7ecec75bb311108:/src/simix/smx_context_private.h

diff --git a/src/simix/smx_context_private.h b/src/simix/smx_context_private.h
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+++ b/src/simix/smx_context_private.h
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+/* a fast and simple context switching library                              */
+
+/* Copyright (c) 2004-2008 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_PRIVATE_H
+#define _XBT_CONTEXT_PRIVATE_H
+
+/*#include "xbt/sysdep.h"*/
+#include "simix/private.h"
+#include "xbt/swag.h"
+
+SG_BEGIN_DECL()
+
+/* *********************** */
+/* Context type definition */
+/* *********************** */
+/* the following function pointers types describe the interface that all context
+   concepts must implement */
+
+/* each context type must contain this macro at its begining -- OOP in C :/ */
+#define SMX_CTX_BASE_T \
+  s_xbt_swag_hookup_t hookup; \
+  ex_ctx_t *exception; \
+  xbt_main_func_t code; \
+
+/* all other context types derive from this structure */
+typedef struct s_smx_context {
+  SMX_CTX_BASE_T;
+} s_smx_context_t;
+
+/* *********************** */
+/* factory type definition */
+/* *********************** */
+
+/* The following function pointer types describe the interface that any context 
+   factory should implement */
+
+/* function used to create a new context */
+typedef int (*smx_pfn_context_factory_create_context_t) (smx_process_t *, xbt_main_func_t);
+
+/* function used to create the context for the maestro process */
+typedef int (*smx_pfn_context_factory_create_maestro_context_t) (smx_process_t*);
+
+/* this function finalize the specified context factory */
+typedef int (*smx_pfn_context_factory_finalize_t) (smx_context_factory_t*);
+
+/* function used to destroy the specified context */
+typedef void (*smx_pfn_context_free_t) (smx_process_t);
+
+/* function used to kill the specified context */
+typedef void (*smx_pfn_context_kill_t) (smx_process_t);
+
+/* function used to resume the specified context */
+typedef void (*smx_pfn_context_schedule_t) (smx_process_t);
+
+/* function used to yield the specified context */
+typedef void (*smx_pfn_context_yield_t) (void);
+
+/* function used to start the specified context */
+typedef void (*smx_pfn_context_start_t) (smx_process_t);
+
+/* function used to stop the current context */
+typedef void (*smx_pfn_context_stop_t) (int);
+
+/* interface of the context factories */
+typedef struct s_smx_context_factory {
+  smx_pfn_context_factory_create_maestro_context_t create_maestro_context;
+  smx_pfn_context_factory_create_context_t create_context;
+  smx_pfn_context_factory_finalize_t finalize;
+  smx_pfn_context_free_t free;
+  smx_pfn_context_kill_t kill;
+  smx_pfn_context_schedule_t schedule;
+  smx_pfn_context_yield_t yield;
+  smx_pfn_context_start_t start;
+  smx_pfn_context_stop_t stop;
+  const char *name;
+} s_smx_context_factory_t;
+
+/* Selects a context factory associated with the name specified by the parameter name.
+ * If successful the function returns 0. Otherwise the function returns the error code.
+ */
+int SIMIX_context_select_factory(const char *name);
+
+/* Initializes a context factory from the name specified by the parameter name.
+ * If the factory cannot be found, an exception is raised.
+ */
+void SIMIX_context_init_factory_by_name(smx_context_factory_t * factory, const char *name);
+
+/* All factories init */
+void SIMIX_ctx_thread_factory_init(smx_context_factory_t * factory);
+
+void SIMIX_ctx_sysv_factory_init(smx_context_factory_t * factory);
+
+void SIMIX_ctx_java_factory_init(smx_context_factory_t * factory);
+
+SG_END_DECL()
+#endif /* !_XBT_CONTEXT_PRIVATE_H */
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