add const to hci_cmd_t for bt_send_cmd, too. Add C++ link protection to public headers

include/btstack/btstack.h

@@ -46,6 +46,10 @@
 
 #include <stdint.h>
 
+#if defined __cplusplus
+extern "C" {
+#endif
+	
 // Default TCP port for BTstack daemon
 #define BTSTACK_PORT            13333
 
@@ -66,7 +70,7 @@ int bt_open();
 int bt_close();
 
 // send hci cmd packet
-int bt_send_cmd(hci_cmd_t *cmd, ...);
+int bt_send_cmd(const hci_cmd_t *cmd, ...);
 
 // register packet handler -- channel only valid for l2cap and rfcomm packets
 // @returns old packet handler
@@ -75,3 +79,7 @@ btstack_packet_handler_t bt_register_packet_handler(btstack_packet_handler_t han
 void bt_send_acl(uint8_t * data, uint16_t len);
 
 void bt_send_l2cap(uint16_t local_cid, uint8_t *data, uint16_t len);
+
+#if defined __cplusplus
+}
+#endif

include/btstack/hci_cmds.h

@@ -39,6 +39,10 @@
 
 #include <stdint.h>
 
+#if defined __cplusplus
+extern "C" {
+#endif
+	
 /**
  * packet types - used in BTstack and over the H4 UART interface
  */
@@ -243,3 +247,6 @@ extern const hci_cmd_t sdp_register_service_record;
 extern const hci_cmd_t sdp_unregister_service_record;
 
 
+#if defined __cplusplus
+}
+#endif

include/btstack/linked_list.h

@@ -37,6 +37,10 @@
 
 #pragma once
 
+#if defined __cplusplus
+extern "C" {
+#endif
+	
 typedef struct linked_item {
     struct linked_item *next; // <-- next element in list, or NULL
     void *user_data;          // <-- pointer to struct base
@@ -52,3 +56,7 @@ void linked_list_add_tail(linked_list_t * list, linked_item_t *item);   // <-- a
 int  linked_list_remove(linked_list_t * list, linked_item_t *item);     // <-- remove item from list
 
 void test_linked_list();
+
+#if defined __cplusplus
+}
+#endif

include/btstack/run_loop.h

@@ -41,6 +41,10 @@
 
 #include <sys/time.h>
 
+#if defined __cplusplus
+extern "C" {
+#endif
+	
 typedef enum {
 	RUN_LOOP_POSIX = 1,
 	RUN_LOOP_COCOA,
@@ -75,3 +79,8 @@ int  run_loop_remove_timer(timer_source_t *timer);
 
 // execute configured run_loop
 void run_loop_execute();
+
+#if defined __cplusplus
+}
+#endif
+

include/btstack/sdp_util.h

@@ -37,6 +37,10 @@
 
 #include <stdint.h>
 
+#if defined __cplusplus
+extern "C" {
+#endif
+	
 typedef enum {
     DE_NIL = 0,
     DE_UINT,
@@ -99,3 +103,7 @@ int de_get_data_size(uint8_t * header);
 int sdp_append_attributes_in_attributeIDList(uint8_t *record, uint8_t *attributeIDList, uint16_t startIndex, uint16_t maxBytes, uint8_t *buffer);
 uint8_t * sdp_get_attribute_value_for_attribute_id(uint8_t * record, uint16_t attributeID);
 int sdp_record_matches_service_search_pattern(uint8_t *record, uint8_t *serviceSearchPattern);
+
+#if defined __cplusplus
+}
+#endif

include/btstack/utils.h

@@ -41,6 +41,10 @@
 
 #include <stdint.h>
 
+#if defined __cplusplus
+extern "C" {
+#endif
+	
 /**
  * @brief hci connection handle type
  */
@@ -104,3 +108,8 @@ uint8_t crc8_calc(uint8_t *data, uint16_t len);
 #ifdef EMBEDDED
 void bzero(void *s, uint32_t n);
 #endif
+	
+#if defined __cplusplus
+}
+#endif
+		

src/btstack.c

@@ -92,7 +92,7 @@ int bt_close(){
 }
 
 // send hci cmd packet
-int bt_send_cmd(hci_cmd_t *cmd, ...){
+int bt_send_cmd(const hci_cmd_t *cmd, ...){
     va_list argptr;
     va_start(argptr, cmd);
     uint16_t len = hci_create_cmd_internal(hci_cmd_buffer, cmd, argptr);

src/hci.h

@@ -208,7 +208,7 @@ typedef struct {
 
 // create and send hci command packets based on a template and a list of parameters
 uint16_t hci_create_cmd(uint8_t *hci_cmd_buffer, hci_cmd_t *cmd, ...);
-uint16_t hci_create_cmd_internal(uint8_t *hci_cmd_buffer, hci_cmd_t *cmd, va_list argptr);
+uint16_t hci_create_cmd_internal(uint8_t *hci_cmd_buffer, const hci_cmd_t *cmd, va_list argptr);
 
 // set up HCI
 void hci_init(hci_transport_t *transport, void *config, bt_control_t *control);
@@ -223,7 +223,7 @@ int hci_power_control(HCI_POWER_MODE mode);
 void hci_run();
 
 // create and send hci command packets based on a template and a list of parameters
-int hci_send_cmd(hci_cmd_t *cmd, ...);
+int hci_send_cmd(const hci_cmd_t *cmd, ...);
 
 // send complete CMD packet
 int hci_send_cmd_packet(uint8_t *packet, int size);