Time for action – initializing the native store

We need to create and initialize all the structures we will use for the next section of the chapter:

1. Create the jni/Store.h file, which defines store data structures:

   • The StoreType enumeration will reflect the corresponding Java enumeration. Leave it empty for now.

   • The StoreValue union will contain any of the possible store values. Leave it empty for now too.

   • The StoreEntry structure contains one piece of data in the store. It is composed of a key (a raw C string made from char*), a type (StoreType), and a value (StoreValue).

     Note

     Note that we will see how to set up and use C++ STL strings in Chapter 9, Porting Existing Libraries to Android.

   • Store is the main structure that defines a fixed size array of entries and a length (that is, the number of allocated entries):

     #ifndef _STORE_H_
     #define _STORE_H_
     
     #include <cstdint>
     
     #define STORE_MAX_CAPACITY 16
     
     typedef enum {
     } StoreType;
     
     typedef union {
     } StoreValue;
     
     typedef struct {
         char* mKey...