src/vlib/init.h - fdio/vpp - Gitiles

 /*
  * Copyright (c) 2015 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 /*
  * init.h: mechanism for functions to be called at init/exit.
  *
  * Copyright (c) 2008 Eliot Dresselhaus
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sublicense, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice shall be
  * included in all copies or substantial portions of the Software.
  *
  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */

 #ifndef included_vlib_init_h
 #define included_vlib_init_h

 #include <vppinfra/error.h>
 #include <vppinfra/format.h>
 #include <vppinfra/hash.h>

 /* Init/exit functions: called at start/end of main routine.  Init
    functions are typically used to register and setup packet
    processing nodes.  */

 typedef clib_error_t *(vlib_init_function_t) (struct vlib_main_t * vm);

 typedef struct _vlib_init_function_list_elt
 {
   struct _vlib_init_function_list_elt *next_init_function;
   vlib_init_function_t *f;
   char *name;
   char **runs_before;
   char **runs_after;
   char **init_order;
 } _vlib_init_function_list_elt_t;

 /* Configuration functions: called with configuration input just before
    main polling loop starts. */
 typedef clib_error_t *(vlib_config_function_t) (struct vlib_main_t * vm,
 						unformat_input_t * input);

 typedef struct vlib_config_function_runtime_t
 {
   /* Function to call.  Set to null once function has already been called. */
   vlib_config_function_t *function;

   /* Input for function. */
   unformat_input_t input;

   /* next config function registration */
   struct vlib_config_function_runtime_t *next_registration;

   /* To be invoked as soon as the clib heap is available */
   u8 is_early;

   /* Name used to distinguish input on command line. */
   char name[32];
 } vlib_config_function_runtime_t;

 #define VLIB_REMOVE_FROM_LINKED_LIST(first,p,next)              \
 {                                                               \
   ASSERT (first);                                               \
   if (first == p)                                               \
       first = (p)->next;                                        \
   else                                                          \
     {                                                           \
       __typeof__ (p) current = first;                           \
       while (current->next)                                     \
 	{                                                       \
 	  if (current->next == p)                               \
 	    {                                                   \
 	      current->next = current->next->next;              \
 	      break;                                            \
 	    }                                                   \
 	  current = current->next;                              \
 	}                                                       \
       ASSERT (current);                                         \
     }                                                           \
 }

 #define _VLIB_INIT_FUNCTION_SYMBOL(x, type)	\
   _vlib_##type##_function_##x

 #define VLIB_INIT_FUNCTION_SYMBOL(x)		\
   _VLIB_INIT_FUNCTION_SYMBOL(x, init)
 #define VLIB_MAIN_LOOP_ENTER_FUNCTION_SYMBOL(x)		\
   _VLIB_INIT_FUNCTION_SYMBOL(x, main_loop_enter)
 #define VLIB_MAIN_LOOP_EXIT_FUNCTION_SYMBOL(x)	\
   _VLIB_INIT_FUNCTION_SYMBOL(x, main_loop_exit)
 #define VLIB_CONFIG_FUNCTION_SYMBOL(x)		\
   _VLIB_INIT_FUNCTION_SYMBOL(x, config)

 /* Declaration is global (e.g. not static) so that init functions can
    be called from other modules to resolve init function depend. */

 #ifndef CLIB_MARCH_VARIANT
 #define VLIB_DECLARE_INIT_FUNCTION(x, tag)                                    \
   vlib_init_function_t *_VLIB_INIT_FUNCTION_SYMBOL (x, tag) = x;              \
   static void __vlib_add_##tag##_function_##x (void)                          \
     __attribute__ ((__constructor__));                                        \
   static _vlib_init_function_list_elt_t _vlib_init_function_##tag##_##x;      \
   static void __vlib_add_##tag##_function_##x (void)                          \
   {                                                                           \
     vlib_global_main_t *vgm = vlib_get_global_main ();                        \
     _vlib_init_function_##tag##_##x.next_init_function =                      \
       vgm->tag##_function_registrations;                                      \
     vgm->tag##_function_registrations = &_vlib_init_function_##tag##_##x;     \
     _vlib_init_function_##tag##_##x.f = &x;                                   \
     _vlib_init_function_##tag##_##x.name = #x;                                \
   }                                                                           \
   static void __vlib_rm_##tag##_function_##x (void)                           \
     __attribute__ ((__destructor__));                                         \
   static void __vlib_rm_##tag##_function_##x (void)                           \
   {                                                                           \
     vlib_global_main_t *vgm = vlib_get_global_main ();                        \
     _vlib_init_function_list_elt_t *this, *prev;                              \
     this = vgm->tag##_function_registrations;                                 \
     if (this == 0)                                                            \
       return;                                                                 \
     if (this->f == &x)                                                        \
       {                                                                       \
 	vgm->tag##_function_registrations = this->next_init_function;         \
 	return;                                                               \
       }                                                                       \
     prev = this;                                                              \
     this = this->next_init_function;                                          \
     while (this)                                                              \
       {                                                                       \
 	if (this->f == &x)                                                    \
 	  {                                                                   \
 	    prev->next_init_function = this->next_init_function;              \
 	    return;                                                           \
 	  }                                                                   \
 	prev = this;                                                          \
 	this = this->next_init_function;                                      \
       }                                                                       \
   }                                                                           \
   static _vlib_init_function_list_elt_t _vlib_init_function_##tag##_##x
 #else
 /* create unused pointer to silence compiler warnings and get whole
    function optimized out */
 #define VLIB_DECLARE_INIT_FUNCTION(x, tag)                      \
 static __clib_unused void * __clib_unused_##tag##_##x = x
 #endif

 #define VLIB_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,init)
 #define VLIB_WORKER_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,worker_init)

 #define VLIB_MAIN_LOOP_ENTER_FUNCTION(x) \
   VLIB_DECLARE_INIT_FUNCTION(x,main_loop_enter)
 #define VLIB_MAIN_LOOP_EXIT_FUNCTION(x) \
 VLIB_DECLARE_INIT_FUNCTION(x,main_loop_exit)

 #ifndef CLIB_MARCH_VARIANT
 #define VLIB_CONFIG_FUNCTION(x, n, ...)                                       \
   __VA_ARGS__ vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x); \
   static void __vlib_add_config_function_##x (void)                           \
     __attribute__ ((__constructor__));                                        \
   static void __vlib_add_config_function_##x (void)                           \
   {                                                                           \
     vlib_global_main_t *vgm = vlib_get_global_main ();                        \
     VLIB_CONFIG_FUNCTION_SYMBOL (x).next_registration =                       \
       vgm->config_function_registrations;                                     \
     vgm->config_function_registrations = &VLIB_CONFIG_FUNCTION_SYMBOL (x);    \
   }                                                                           \
   static void __vlib_rm_config_function_##x (void)                            \
     __attribute__ ((__destructor__));                                         \
   static void __vlib_rm_config_function_##x (void)                            \
   {                                                                           \
     vlib_global_main_t *vgm = vlib_get_global_main ();                        \
     vlib_config_function_runtime_t *p = &VLIB_CONFIG_FUNCTION_SYMBOL (x);     \
     VLIB_REMOVE_FROM_LINKED_LIST (vgm->config_function_registrations, p,      \
 				  next_registration);                         \
   }                                                                           \
   vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x) = {          \
     .name = n,                                                                \
     .function = x,                                                            \
     .is_early = 0,                                                            \
   }
 #else
 /* create unused pointer to silence compiler warnings and get whole
    function optimized out */
 #define VLIB_CONFIG_FUNCTION(x,n,...)                           \
   static __clib_unused vlib_config_function_runtime_t           \
     VLIB_CONFIG_FUNCTION_SYMBOL (__clib_unused_##x)             \
   = {                                                           \
     .name = n,                                                  \
     .function = x,                                              \
     .is_early = 0,						\
   }
 #endif

 #ifndef CLIB_MARCH_VARIANT
 #define VLIB_EARLY_CONFIG_FUNCTION(x, n, ...)                                 \
   __VA_ARGS__ vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x); \
   static void __vlib_add_config_function_##x (void)                           \
     __attribute__ ((__constructor__));                                        \
   static void __vlib_add_config_function_##x (void)                           \
   {                                                                           \
     vlib_global_main_t *vgm = vlib_get_global_main ();                        \
     VLIB_CONFIG_FUNCTION_SYMBOL (x).next_registration =                       \
       vgm->config_function_registrations;                                     \
     vgm->config_function_registrations = &VLIB_CONFIG_FUNCTION_SYMBOL (x);    \
   }                                                                           \
   static void __vlib_rm_config_function_##x (void)                            \
     __attribute__ ((__destructor__));                                         \
   static void __vlib_rm_config_function_##x (void)                            \
   {                                                                           \
     vlib_global_main_t *vgm = vlib_get_global_main ();                        \
     vlib_config_function_runtime_t *p = &VLIB_CONFIG_FUNCTION_SYMBOL (x);     \
     VLIB_REMOVE_FROM_LINKED_LIST (vgm->config_function_registrations, p,      \
 				  next_registration);                         \
   }                                                                           \
   vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x) = {          \
     .name = n,                                                                \
     .function = x,                                                            \
     .is_early = 1,                                                            \
   }
 #else
 /* create unused pointer to silence compiler warnings and get whole
    function optimized out */
 #define VLIB_EARLY_CONFIG_FUNCTION(x,n,...)                     \
   static __clib_unused vlib_config_function_runtime_t           \
     VLIB_CONFIG_FUNCTION_SYMBOL (__clib_unused_##x)             \
   = {                                                           \
     .name = n,                                                  \
     .function = x,                                              \
     .is_early = 1,						\
   }
 #endif

 /* Call given init function: used for init function dependencies. */
 #define vlib_call_init_function(vm, x)                                        \
   ({                                                                          \
     vlib_global_main_t *vgm = &vlib_global_main;                              \
     extern vlib_init_function_t *VLIB_INIT_FUNCTION_SYMBOL (x);               \
     vlib_init_function_t *_f = VLIB_INIT_FUNCTION_SYMBOL (x);                 \
     clib_error_t *_error = 0;                                                 \
     if (!hash_get (vgm->init_functions_called, _f))                           \
       {                                                                       \
 	hash_set1 (vgm->init_functions_called, _f);                           \
 	_error = _f (vm);                                                     \
       }                                                                       \
     _error;                                                                   \
   })

 /* Don't call given init function: used to suppress parts of the netstack */
 #define vlib_mark_init_function_complete(vm, x)                               \
   ({                                                                          \
     vlib_global_main_t *vgm = &vlib_global_main;                              \
     extern vlib_init_function_t *VLIB_INIT_FUNCTION_SYMBOL (x);               \
     vlib_init_function_t *_f = VLIB_INIT_FUNCTION_SYMBOL (x);                 \
     hash_set1 (vgm->init_functions_called, _f);                               \
   })

 #define vlib_call_post_graph_init_function(vm, x)                             \
   ({                                                                          \
     vlib_global_main_t *vgm = &vlib_global_main;                              \
     extern vlib_init_function_t *VLIB_POST_GRAPH_INIT_FUNCTION_SYMBOL (x);    \
     vlib_init_function_t *_f = VLIB_POST_GRAPH_INIT_FUNCTION_SYMBOL (x);      \
     clib_error_t *_error = 0;                                                 \
     if (!hash_get (vgm->init_functions_called, _f))                           \
       {                                                                       \
 	hash_set1 (vgm->init_functions_called, _f);                           \
 	_error = _f (vm);                                                     \
       }                                                                       \
     _error;                                                                   \
   })

 #define vlib_call_config_function(vm, x)                                      \
   ({                                                                          \
     vlib_global_main_t *vgm = &vlib_global_main;                              \
     vlib_config_function_runtime_t *_r;                                       \
     clib_error_t *_error = 0;                                                 \
     extern vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x);    \
                                                                               \
     _r = &VLIB_CONFIG_FUNCTION_SYMBOL (x);                                    \
     if (!hash_get (vgm->init_functions_called, _r->function))                 \
       {                                                                       \
 	hash_set1 (vgm->init_functions_called, _r->function);                 \
 	_error = _r->function (vm, &_r->input);                               \
       }                                                                       \
     _error;                                                                   \
   })

 #define vlib_call_main_loop_enter_function(vm, x)                             \
   ({                                                                          \
     vlib_global_main_t *vgm = &vlib_global_main;                              \
     extern vlib_init_function_t *VLIB_MAIN_LOOP_ENTER_FUNCTION_SYMBOL (x);    \
     vlib_init_function_t *_f = VLIB_MAIN_LOOP_ENTER_FUNCTION_SYMBOL (x);      \
     clib_error_t *_error = 0;                                                 \
     if (!hash_get (vgm->init_functions_called, _f))                           \
       {                                                                       \
 	hash_set1 (vgm->init_functions_called, _f);                           \
 	_error = _f (vm);                                                     \
       }                                                                       \
     _error;                                                                   \
   })

 /* External functions. */
 clib_error_t *vlib_call_all_init_functions (struct vlib_main_t *vm);
 clib_error_t *vlib_call_all_config_functions (struct vlib_main_t *vm,
 					      unformat_input_t * input,
 					      int is_early);
 clib_error_t *vlib_call_all_main_loop_enter_functions (struct vlib_main_t
 						       *vm);
 clib_error_t *vlib_call_all_main_loop_exit_functions (struct vlib_main_t *vm);
 clib_error_t *
 vlib_call_init_exit_functions (struct vlib_main_t *vm,
 			       _vlib_init_function_list_elt_t **headp,
 			       int call_once, int is_global);
 clib_error_t *
 vlib_call_init_exit_functions_no_sort (struct vlib_main_t *vm,
 				       _vlib_init_function_list_elt_t **headp,
 				       int call_once, int is_global);
 clib_error_t *vlib_sort_init_exit_functions (_vlib_init_function_list_elt_t
 					     **);
 #define foreach_vlib_module_reference		\
   _ (node_cli)					\
   _ (trace_cli)

 /* Dummy function to get node_cli.c linked in. */
 #define _(x) void vlib_##x##_reference (void);
 foreach_vlib_module_reference
 #undef _
 #define VLIB_INITS(...)  (char*[]) { __VA_ARGS__, 0}
 #endif /* included_vlib_init_h */
 /*
  * fd.io coding-style-patch-verification: ON
  *
  * Local Variables:
  * eval: (c-set-style "gnu")
  * End:
  */
	/*
	* Copyright (c) 2015 Cisco and/or its affiliates.
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at:
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	/*
	* init.h: mechanism for functions to be called at init/exit.
	*
	* Copyright (c) 2008 Eliot Dresselhaus
	*
	* Permission is hereby granted, free of charge, to any person obtaining
	* a copy of this software and associated documentation files (the
	* "Software"), to deal in the Software without restriction, including
	* without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sublicense, and/or sell copies of the Software, and to
	* permit persons to whom the Software is furnished to do so, subject to
	* the following conditions:
	*
	* The above copyright notice and this permission notice shall be
	* included in all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
	* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
	* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
	* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	*/

	#ifndef included_vlib_init_h
	#define included_vlib_init_h

	#include <vppinfra/error.h>
	#include <vppinfra/format.h>
	#include <vppinfra/hash.h>

	/* Init/exit functions: called at start/end of main routine. Init
	functions are typically used to register and setup packet
	processing nodes. */

	typedef clib_error_t (vlib_init_function_t) (struct vlib_main_t vm);

	typedef struct _vlib_init_function_list_elt
	{
	struct _vlib_init_function_list_elt *next_init_function;
	vlib_init_function_t *f;
	char *name;
	char **runs_before;
	char **runs_after;
	char **init_order;
	} _vlib_init_function_list_elt_t;

	/* Configuration functions: called with configuration input just before
	main polling loop starts. */
	typedef clib_error_t (vlib_config_function_t) (struct vlib_main_t vm,
	unformat_input_t * input);

	typedef struct vlib_config_function_runtime_t
	{
	/* Function to call. Set to null once function has already been called. */
	vlib_config_function_t *function;

	/* Input for function. */
	unformat_input_t input;

	/* next config function registration */
	struct vlib_config_function_runtime_t *next_registration;

	/* To be invoked as soon as the clib heap is available */
	u8 is_early;

	/* Name used to distinguish input on command line. */
	char name[32];
	} vlib_config_function_runtime_t;

	#define VLIB_REMOVE_FROM_LINKED_LIST(first,p,next) \
	{ \
	ASSERT (first); \
	if (first == p) \
	first = (p)->next; \
	else \
	{ \
	__typeof__ (p) current = first; \
	while (current->next) \
	{ \
	if (current->next == p) \
	{ \
	current->next = current->next->next; \
	break; \
	} \
	current = current->next; \
	} \
	ASSERT (current); \
	} \
	}

	#define _VLIB_INIT_FUNCTION_SYMBOL(x, type) \
	_vlib_##type##_function_##x

	#define VLIB_INIT_FUNCTION_SYMBOL(x) \
	_VLIB_INIT_FUNCTION_SYMBOL(x, init)
	#define VLIB_MAIN_LOOP_ENTER_FUNCTION_SYMBOL(x) \
	_VLIB_INIT_FUNCTION_SYMBOL(x, main_loop_enter)
	#define VLIB_MAIN_LOOP_EXIT_FUNCTION_SYMBOL(x) \
	_VLIB_INIT_FUNCTION_SYMBOL(x, main_loop_exit)
	#define VLIB_CONFIG_FUNCTION_SYMBOL(x) \
	_VLIB_INIT_FUNCTION_SYMBOL(x, config)

	/* Declaration is global (e.g. not static) so that init functions can
	be called from other modules to resolve init function depend. */

	#ifndef CLIB_MARCH_VARIANT
	#define VLIB_DECLARE_INIT_FUNCTION(x, tag) \
	vlib_init_function_t *_VLIB_INIT_FUNCTION_SYMBOL (x, tag) = x; \
	static void __vlib_add_##tag##_function_##x (void) \
	__attribute__ ((__constructor__)); \
	static _vlib_init_function_list_elt_t _vlib_init_function_##tag##_##x; \
	static void __vlib_add_##tag##_function_##x (void) \
	{ \
	vlib_global_main_t *vgm = vlib_get_global_main (); \
	_vlib_init_function_##tag##_##x.next_init_function = \
	vgm->tag##_function_registrations; \
	vgm->tag##_function_registrations = &_vlib_init_function_##tag##_##x; \
	_vlib_init_function_##tag##_##x.f = &x; \
	_vlib_init_function_##tag##_##x.name = #x; \
	} \
	static void __vlib_rm_##tag##_function_##x (void) \
	__attribute__ ((__destructor__)); \
	static void __vlib_rm_##tag##_function_##x (void) \
	{ \
	vlib_global_main_t *vgm = vlib_get_global_main (); \
	_vlib_init_function_list_elt_t this, prev; \
	this = vgm->tag##_function_registrations; \
	if (this == 0) \
	return; \
	if (this->f == &x) \
	{ \
	vgm->tag##_function_registrations = this->next_init_function; \
	return; \
	} \
	prev = this; \
	this = this->next_init_function; \
	while (this) \
	{ \
	if (this->f == &x) \
	{ \
	prev->next_init_function = this->next_init_function; \
	return; \
	} \
	prev = this; \
	this = this->next_init_function; \
	} \
	} \
	static _vlib_init_function_list_elt_t _vlib_init_function_##tag##_##x
	#else
	/* create unused pointer to silence compiler warnings and get whole
	function optimized out */
	#define VLIB_DECLARE_INIT_FUNCTION(x, tag) \
	static __clib_unused void * __clib_unused_##tag##_##x = x
	#endif

	#define VLIB_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,init)
	#define VLIB_WORKER_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,worker_init)

	#define VLIB_MAIN_LOOP_ENTER_FUNCTION(x) \
	VLIB_DECLARE_INIT_FUNCTION(x,main_loop_enter)
	#define VLIB_MAIN_LOOP_EXIT_FUNCTION(x) \
	VLIB_DECLARE_INIT_FUNCTION(x,main_loop_exit)

	#ifndef CLIB_MARCH_VARIANT
	#define VLIB_CONFIG_FUNCTION(x, n, ...) \
	__VA_ARGS__ vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x); \
	static void __vlib_add_config_function_##x (void) \
	__attribute__ ((__constructor__)); \
	static void __vlib_add_config_function_##x (void) \
	{ \
	vlib_global_main_t *vgm = vlib_get_global_main (); \
	VLIB_CONFIG_FUNCTION_SYMBOL (x).next_registration = \
	vgm->config_function_registrations; \
	vgm->config_function_registrations = &VLIB_CONFIG_FUNCTION_SYMBOL (x); \
	} \
	static void __vlib_rm_config_function_##x (void) \
	__attribute__ ((__destructor__)); \
	static void __vlib_rm_config_function_##x (void) \
	{ \
	vlib_global_main_t *vgm = vlib_get_global_main (); \
	vlib_config_function_runtime_t *p = &VLIB_CONFIG_FUNCTION_SYMBOL (x); \
	VLIB_REMOVE_FROM_LINKED_LIST (vgm->config_function_registrations, p, \
	next_registration); \
	} \
	vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x) = { \
	.name = n, \
	.function = x, \
	.is_early = 0, \
	}
	#else
	/* create unused pointer to silence compiler warnings and get whole
	function optimized out */
	#define VLIB_CONFIG_FUNCTION(x,n,...) \
	static __clib_unused vlib_config_function_runtime_t \
	VLIB_CONFIG_FUNCTION_SYMBOL (__clib_unused_##x) \
	= { \
	.name = n, \
	.function = x, \
	.is_early = 0, \
	}
	#endif

	#ifndef CLIB_MARCH_VARIANT
	#define VLIB_EARLY_CONFIG_FUNCTION(x, n, ...) \
	__VA_ARGS__ vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x); \
	static void __vlib_add_config_function_##x (void) \
	__attribute__ ((__constructor__)); \
	static void __vlib_add_config_function_##x (void) \
	{ \
	vlib_global_main_t *vgm = vlib_get_global_main (); \
	VLIB_CONFIG_FUNCTION_SYMBOL (x).next_registration = \
	vgm->config_function_registrations; \
	vgm->config_function_registrations = &VLIB_CONFIG_FUNCTION_SYMBOL (x); \
	} \
	static void __vlib_rm_config_function_##x (void) \
	__attribute__ ((__destructor__)); \
	static void __vlib_rm_config_function_##x (void) \
	{ \
	vlib_global_main_t *vgm = vlib_get_global_main (); \
	vlib_config_function_runtime_t *p = &VLIB_CONFIG_FUNCTION_SYMBOL (x); \
	VLIB_REMOVE_FROM_LINKED_LIST (vgm->config_function_registrations, p, \
	next_registration); \
	} \
	vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x) = { \
	.name = n, \
	.function = x, \
	.is_early = 1, \
	}
	#else
	/* create unused pointer to silence compiler warnings and get whole
	function optimized out */
	#define VLIB_EARLY_CONFIG_FUNCTION(x,n,...) \
	static __clib_unused vlib_config_function_runtime_t \
	VLIB_CONFIG_FUNCTION_SYMBOL (__clib_unused_##x) \
	= { \
	.name = n, \
	.function = x, \
	.is_early = 1, \
	}
	#endif

	/* Call given init function: used for init function dependencies. */
	#define vlib_call_init_function(vm, x) \
	({ \
	vlib_global_main_t *vgm = &vlib_global_main; \
	extern vlib_init_function_t *VLIB_INIT_FUNCTION_SYMBOL (x); \
	vlib_init_function_t *_f = VLIB_INIT_FUNCTION_SYMBOL (x); \
	clib_error_t *_error = 0; \
	if (!hash_get (vgm->init_functions_called, _f)) \
	{ \
	hash_set1 (vgm->init_functions_called, _f); \
	_error = _f (vm); \
	} \
	_error; \
	})

	/* Don't call given init function: used to suppress parts of the netstack */
	#define vlib_mark_init_function_complete(vm, x) \
	({ \
	vlib_global_main_t *vgm = &vlib_global_main; \
	extern vlib_init_function_t *VLIB_INIT_FUNCTION_SYMBOL (x); \
	vlib_init_function_t *_f = VLIB_INIT_FUNCTION_SYMBOL (x); \
	hash_set1 (vgm->init_functions_called, _f); \
	})

	#define vlib_call_post_graph_init_function(vm, x) \
	({ \
	vlib_global_main_t *vgm = &vlib_global_main; \
	extern vlib_init_function_t *VLIB_POST_GRAPH_INIT_FUNCTION_SYMBOL (x); \
	vlib_init_function_t *_f = VLIB_POST_GRAPH_INIT_FUNCTION_SYMBOL (x); \
	clib_error_t *_error = 0; \
	if (!hash_get (vgm->init_functions_called, _f)) \
	{ \
	hash_set1 (vgm->init_functions_called, _f); \
	_error = _f (vm); \
	} \
	_error; \
	})

	#define vlib_call_config_function(vm, x) \
	({ \
	vlib_global_main_t *vgm = &vlib_global_main; \
	vlib_config_function_runtime_t *_r; \
	clib_error_t *_error = 0; \
	extern vlib_config_function_runtime_t VLIB_CONFIG_FUNCTION_SYMBOL (x); \
	\
	_r = &VLIB_CONFIG_FUNCTION_SYMBOL (x); \
	if (!hash_get (vgm->init_functions_called, _r->function)) \
	{ \
	hash_set1 (vgm->init_functions_called, _r->function); \
	_error = _r->function (vm, &_r->input); \
	} \
	_error; \
	})

	#define vlib_call_main_loop_enter_function(vm, x) \
	({ \
	vlib_global_main_t *vgm = &vlib_global_main; \
	extern vlib_init_function_t *VLIB_MAIN_LOOP_ENTER_FUNCTION_SYMBOL (x); \
	vlib_init_function_t *_f = VLIB_MAIN_LOOP_ENTER_FUNCTION_SYMBOL (x); \
	clib_error_t *_error = 0; \
	if (!hash_get (vgm->init_functions_called, _f)) \
	{ \
	hash_set1 (vgm->init_functions_called, _f); \
	_error = _f (vm); \
	} \
	_error; \
	})

	/* External functions. */
	clib_error_t vlib_call_all_init_functions (struct vlib_main_t vm);
	clib_error_t vlib_call_all_config_functions (struct vlib_main_t vm,
	unformat_input_t * input,
	int is_early);
	clib_error_t *vlib_call_all_main_loop_enter_functions (struct vlib_main_t
	*vm);
	clib_error_t vlib_call_all_main_loop_exit_functions (struct vlib_main_t vm);
	clib_error_t *
	vlib_call_init_exit_functions (struct vlib_main_t *vm,
	_vlib_init_function_list_elt_t **headp,
	int call_once, int is_global);
	clib_error_t *
	vlib_call_init_exit_functions_no_sort (struct vlib_main_t *vm,
	_vlib_init_function_list_elt_t **headp,
	int call_once, int is_global);
	clib_error_t *vlib_sort_init_exit_functions (_vlib_init_function_list_elt_t
	**);
	#define foreach_vlib_module_reference \
	_ (node_cli) \
	_ (trace_cli)

	/* Dummy function to get node_cli.c linked in. */
	#define _(x) void vlib_##x##_reference (void);
	foreach_vlib_module_reference
	#undef _
	#define VLIB_INITS(...) (char*[]) { __VA_ARGS__, 0}
	#endif /* included_vlib_init_h */
	/*
	* fd.io coding-style-patch-verification: ON
	*
	* Local Variables:
	* eval: (c-set-style "gnu")
	* End:
	*/