A sprinkling of const in vlibmemory/api.h and friends

Change-Id: I953ebb37eeec7de0c4a6b00258c3c67a83cbc020
Signed-off-by: Neale Ranns <nranns@cisco.com>

src/svm/svm.c

@@ -796,7 +796,7 @@ svm_region_init (void)
 }
 
 void
-svm_region_init_chroot (char *root_path)
+svm_region_init_chroot (const char *root_path)
 {
   svm_map_region_args_t _a, *a = &_a;
 
@@ -813,7 +813,7 @@ svm_region_init_chroot (char *root_path)
 }
 
 void
-svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid)
+svm_region_init_chroot_uid_gid (const char *root_path, int uid, int gid)
 {
   svm_map_region_args_t _a, *a = &_a;
 
@@ -1151,7 +1151,7 @@ svm_client_scan_this_region_nolock (svm_region_t * rp)
  * Scan svm regions for dead clients
  */
 void
-svm_client_scan (char *root_path)
+svm_client_scan (const char *root_path)
 {
   int i, j;
   svm_main_region_t *mp;

src/svm/svm.h

@@ -69,8 +69,8 @@ typedef struct svm_region_
 
 typedef struct svm_map_region_args_
 {
-  char *root_path;		/* NULL means use the truly global arena */
-  char *name;
+  const char *root_path;	/* NULL means use the truly global arena */
+  const char *name;
   u64 baseva;
   u64 size;
   u64 pvt_heap_size;
@@ -115,12 +115,12 @@ typedef struct
 
 void *svm_region_find_or_create (svm_map_region_args_t * a);
 void svm_region_init (void);
-void svm_region_init_chroot (char *root_path);
-void svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid);
+void svm_region_init_chroot (const char *root_path);
+void svm_region_init_chroot_uid_gid (const char *root_path, int uid, int gid);
 void svm_region_init_args (svm_map_region_args_t * a);
 void svm_region_exit (void);
 void svm_region_unmap (void *rp_arg);
-void svm_client_scan (char *root_path);
+void svm_client_scan (const char *root_path);
 void svm_client_scan_this_region_nolock (svm_region_t * rp);
 u8 *shm_name_from_svm_map_region_args (svm_map_region_args_t * a);
 

src/svm/svmdb.h

@@ -83,7 +83,7 @@ typedef struct
 
 typedef struct
 {
-  char *root_path;
+  const char *root_path;
   uword size;
   u32 uid;
   u32 gid;

src/vlibapi/api.h

@@ -127,7 +127,7 @@ typedef struct
   void (**msg_cleanup_handlers) (void *);
   void (**msg_endian_handlers) (void *);
   void (**msg_print_handlers) (void *, void *);
-  char **msg_names;
+  const char **msg_names;
   u8 *message_bounce;
   u8 *is_mp_safe;
   struct ring_alloc_ *arings;
@@ -195,8 +195,8 @@ typedef struct
   /* client side message index hash table */
   uword *msg_index_by_name_and_crc;
 
-  char *region_name;
-  char *root_path;
+  const char *region_name;
+  const char *root_path;
 
   /* Replay in progress? */
   int replay_in_progress;
@@ -276,8 +276,9 @@ void vl_msg_api_register_pd_handler (void *handler,
 int vl_msg_api_pd_handler (void *mp, int rv);
 
 void vl_msg_api_set_first_available_msg_id (u16 first_avail);
-u16 vl_msg_api_get_msg_ids (char *name, int n);
-void vl_msg_api_add_msg_name_crc (api_main_t * am, char *string, u32 id);
+u16 vl_msg_api_get_msg_ids (const char *name, int n);
+void vl_msg_api_add_msg_name_crc (api_main_t * am, const char *string,
+				  u32 id);
 u32 vl_api_get_msg_index (u8 * name_and_crc);
 
 /* node_serialize.c prototypes */

src/vlibapi/api_shared.c

@@ -828,7 +828,7 @@ vl_msg_api_set_first_available_msg_id (u16 first_avail)
 }
 
 u16
-vl_msg_api_get_msg_ids (char *name, int n)
+vl_msg_api_get_msg_ids (const char *name, int n)
 {
   api_main_t *am = &api_main;
   u8 *name_copy;
@@ -872,7 +872,7 @@ vl_msg_api_get_msg_ids (char *name, int n)
 }
 
 void
-vl_msg_api_add_msg_name_crc (api_main_t * am, char *string, u32 id)
+vl_msg_api_add_msg_name_crc (api_main_t * am, const char *string, u32 id)
 {
   uword *p;
 

src/vlibmemory/api.h

@@ -123,20 +123,20 @@ void *vl_msg_api_alloc_or_null (int nbytes);
 void *vl_msg_api_alloc_as_if_client (int nbytes);
 void *vl_msg_api_alloc_as_if_client_or_null (int nbytes);
 void vl_msg_api_free (void *a);
-int vl_map_shmem (char *region_name, int is_vlib);
+int vl_map_shmem (const char *region_name, int is_vlib);
 void vl_register_mapped_shmem_region (svm_region_t * rp);
 void vl_unmap_shmem (void);
 void vl_msg_api_send_shmem (unix_shared_memory_queue_t * q, u8 * elem);
 void vl_msg_api_send_shmem_nolock (unix_shared_memory_queue_t * q, u8 * elem);
 void vl_msg_api_send (vl_api_registration_t * rp, u8 * elem);
-int vl_client_connect (char *name, int ctx_quota, int input_queue_size);
+int vl_client_connect (const char *name, int ctx_quota, int input_queue_size);
 void vl_client_disconnect (void);
 unix_shared_memory_queue_t *vl_api_client_index_to_input_queue (u32 index);
 vl_api_registration_t *vl_api_client_index_to_registration (u32 index);
-int vl_client_api_map (char *region_name);
+int vl_client_api_map (const char *region_name);
 void vl_client_api_unmap (void);
-void vl_set_memory_region_name (char *name);
-void vl_set_memory_root_path (char *root_path);
+void vl_set_memory_region_name (const char *name);
+void vl_set_memory_root_path (const char *root_path);
 void vl_set_memory_uid (int uid);
 void vl_set_memory_gid (int gid);
 void vl_set_global_memory_baseva (u64 baseva);
@@ -146,12 +146,12 @@ void vl_set_global_pvt_heap_size (u64 size);
 void vl_set_api_pvt_heap_size (u64 size);
 void vl_enable_disable_memory_api (vlib_main_t * vm, int yesno);
 void vl_client_disconnect_from_vlib (void);
-int vl_client_connect_to_vlib (char *svm_name, char *client_name,
-			       int rx_queue_size);
-int vl_client_connect_to_vlib_no_rx_pthread (char *svm_name,
-					     char *client_name,
+int vl_client_connect_to_vlib (const char *svm_name,
+			       const char *client_name, int rx_queue_size);
+int vl_client_connect_to_vlib_no_rx_pthread (const char *svm_name,
+					     const char *client_name,
 					     int rx_queue_size);
-u16 vl_client_get_first_plugin_msg_id (char *plugin_name);
+u16 vl_client_get_first_plugin_msg_id (const char *plugin_name);
 
 void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
 

src/vlibmemory/memory_client.c

@@ -155,7 +155,7 @@ noop_handler (void *notused)
 }
 
 int
-vl_client_connect (char *name, int ctx_quota, int input_queue_size)
+vl_client_connect (const char *name, int ctx_quota, int input_queue_size)
 {
   svm_region_t *svm;
   vl_api_memclnt_create_t *mp;
@@ -326,7 +326,7 @@ _(MEMCLNT_DELETE_REPLY, memclnt_delete_reply)
 
 
 int
-vl_client_api_map (char *region_name)
+vl_client_api_map (const char *region_name)
 {
   int rv;
 
@@ -354,7 +354,8 @@ vl_client_api_unmap (void)
 }
 
 static int
-connect_to_vlib_internal (char *svm_name, char *client_name,
+connect_to_vlib_internal (const char *svm_name,
+			  const char *client_name,
 			  int rx_queue_size, int want_pthread)
 {
   int rv = 0;
@@ -388,15 +389,16 @@ connect_to_vlib_internal (char *svm_name, char *client_name,
 }
 
 int
-vl_client_connect_to_vlib (char *svm_name, char *client_name,
-			   int rx_queue_size)
+vl_client_connect_to_vlib (const char *svm_name,
+			   const char *client_name, int rx_queue_size)
 {
   return connect_to_vlib_internal (svm_name, client_name, rx_queue_size,
 				   1 /* want pthread */ );
 }
 
 int
-vl_client_connect_to_vlib_no_rx_pthread (char *svm_name, char *client_name,
+vl_client_connect_to_vlib_no_rx_pthread (const char *svm_name,
+					 const char *client_name,
 					 int rx_queue_size)
 {
   return connect_to_vlib_internal (svm_name, client_name, rx_queue_size,
@@ -437,7 +439,7 @@ static void vl_api_get_first_msg_id_reply_t_handler
 }
 
 u16
-vl_client_get_first_plugin_msg_id (char *plugin_name)
+vl_client_get_first_plugin_msg_id (const char *plugin_name)
 {
   vl_api_get_first_msg_id_t *mp;
   api_main_t *am = &api_main;

src/vlibmemory/memory_shared.c

@@ -257,7 +257,7 @@ vl_msg_api_free_nolock (void *a)
 }
 
 void
-vl_set_memory_root_path (char *name)
+vl_set_memory_root_path (const char *name)
 {
   api_main_t *am = &api_main;
 
@@ -321,7 +321,7 @@ vl_set_api_pvt_heap_size (u64 size)
 }
 
 int
-vl_map_shmem (char *region_name, int is_vlib)
+vl_map_shmem (const char *region_name, int is_vlib)
 {
   svm_map_region_args_t _a, *a = &_a;
   svm_region_t *vlib_rp, *root_rp;

src/vlibmemory/memory_vlib.c

@@ -361,7 +361,7 @@ _(GET_FIRST_MSG_ID, get_first_msg_id)
  * vl_api_init
  */
 static int
-memory_api_init (char *region_name)
+memory_api_init (const char *region_name)
 {
   int rv;
   vl_msg_api_msg_config_t cfg;
@@ -1202,7 +1202,7 @@ vlibmemory_init (vlib_main_t * vm)
 VLIB_INIT_FUNCTION (vlibmemory_init);
 
 void
-vl_set_memory_region_name (char *name)
+vl_set_memory_region_name (const char *name)
 {
   api_main_t *am = &api_main;
 

src/vpp/api/api_main.c

@@ -211,7 +211,7 @@ api_cli_output (void *notused, const char *fmt, ...)
 }
 
 u16
-vl_client_get_first_plugin_msg_id (char *plugin_name)
+vl_client_get_first_plugin_msg_id (const char *plugin_name)
 {
   api_main_t *am = &api_main;
   vl_api_msg_range_t *rp;