Reorganize source tree to use single autotools instance

Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 238 insertions, 0 deletions

diff --git a/src/vlib/init.h b/src/vlib/init.h
new file mode 100644
index 00000000000..4fa5b304590
--- /dev/null
+++ b/src/vlib/init.h
@@ -0,0 +1,238 @@
+/*
+ * 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;
+} _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_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. */
+
+#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 void __vlib_add_##tag##_function_##x (void)              \
+{                                                               \
+ vlib_main_t * vm = vlib_get_main();                            \
+ static _vlib_init_function_list_elt_t _vlib_init_function;     \
+ _vlib_init_function.next_init_function                         \
+    = vm->tag##_function_registrations;                         \
+  vm->tag##_function_registrations = &_vlib_init_function;      \
+ _vlib_init_function.f = &x;                                    \
+}
+
+#define VLIB_INIT_FUNCTION(x) VLIB_DECLARE_INIT_FUNCTION(x,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)
+
+#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_main_t * vm = vlib_get_main();                         \
+    VLIB_CONFIG_FUNCTION_SYMBOL(x).next_registration            \
+       = vm->config_function_registrations;                     \
+    vm->config_function_registrations                           \
+       = &VLIB_CONFIG_FUNCTION_SYMBOL(x);                       \
+}                                                               \
+  vlib_config_function_runtime_t                                \
+    VLIB_CONFIG_FUNCTION_SYMBOL (x)                             \
+  = {                                                           \
+    .name = n,                                                  \
+    .function = x,                                              \
+    .is_early = 0,						\
+  }
+
+#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_main_t * vm = vlib_get_main();                         \
+    VLIB_CONFIG_FUNCTION_SYMBOL(x).next_registration            \
+       = vm->config_function_registrations;                     \
+    vm->config_function_registrations                           \
+       = &VLIB_CONFIG_FUNCTION_SYMBOL(x);                       \
+}                                                               \
+  vlib_config_function_runtime_t                                \
+    VLIB_CONFIG_FUNCTION_SYMBOL (x)                             \
+  = {                                                           \
+    .name = n,                                                  \
+    .function = x,                                              \
+    .is_early = 1,						\
+  }
+
+/* Call given init function: used for init function dependencies. */
+#define vlib_call_init_function(vm, x)					\
+  ({									\
+    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 (vm->init_functions_called, _f))			\
+      {									\
+	hash_set1 (vm->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)				\
+  ({									\
+    extern vlib_init_function_t * VLIB_INIT_FUNCTION_SYMBOL (x);	\
+    vlib_init_function_t * _f = VLIB_INIT_FUNCTION_SYMBOL (x);		\
+    hash_set1 (vm->init_functions_called, _f);				\
+  })
+
+#define vlib_call_post_graph_init_function(vm, x)			\
+  ({									\
+    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 (vm->init_functions_called, _f))			\
+      {									\
+	hash_set1 (vm->init_functions_called, _f);			\
+	_error = _f (vm);						\
+      }									\
+    _error;								\
+  })
+
+#define vlib_call_config_function(vm, x)			\
+  ({								\
+    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 (vm->init_functions_called, _r->function))	\
+      {								\
+        hash_set1 (vm->init_functions_called, _r->function);	\
+	_error = _r->function (vm, &_r->input);			\
+      }								\
+    _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 *
+					     head, int call_once);
+
+#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 _
+#endif /* included_vlib_init_h */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */