Work in progress

Minimal reactive library in C

Planned features

The rc_ prefix stands for React C

Set/Get values of variables

uint32_t id = rc_var_create(RC_VAR_TYPE_INT + 32);

int32_t x = 4;
rc_var_set(id, &x);
/*Or*/
rc_var_set_int(id, x);

int32_t * xp = rc_var_get(id);

Types:

typedef enum
{
  RC_VAR_TYPE_POINTER = 0x10
  RC_VAR_TYPE_BOOL =    0x11
  RC_VAR_TYPE_CHAR =    0x12
  RC_VAR_TYPE_INT =     0x200,
  RC_VAR_TYPE_UINT =    0x300,
  RC_VAR_TYPE_BUF =     0x1000,
}rc_var_type_t

E.g. RC_VAR_TYPE_INT + 32 will be stored as 0x100 + 32 = 0x120. The base and the size can be masked out.

The basic value set function is:

rc_var_set(id, &x);

But there are some helpers

rc_var_set_int(id, -13);
rc_var_set_uint(id, 39);
rc_var_set_bool(id, true);
rc_var_set_char(id, 'a');
rc_var_set_str(id, "some text");
rc_var_set_buf(id, buf);

It also can work:

my_stuct_t * s = rc_var_get(id);
s.num = 3;
rc_var_refr(id);

Function(s) can subscribe to listen a variable change

TODO

Simple integration

Only a rc_handler() needs to be called periodically in an:

task
main while(1)
a Timer intrrupt (on embedded systems)

Work with or without dynamic memory allocation