rt_benchs/communication_techniques/include/fast_forward_comm.h

51 lines
873 B
C

#ifndef _SPECIFIC_COMM_H_
#define _SPECIFIC_COMM_H_ 1
/* Non standard include */
#include <commtech.h>
#include <assert.h>
#define SHARED_SPACE_SIZE (16 * BUF_SIZE)
#define SHARED_SPACE_VOIDPTR (SHARED_SPACE_SIZE / sizeof(void *))
#define DANGER (2 * BUF_SIZE / sizeof(void *))
#define GOOD (6 * BUF_SIZE / sizeof(void *))
#define ADJUST_FREQ 64
struct comm
{
void * volatile *shared_space;
int head;
int tail;
};
__BEGIN_DECLS
extern __thread struct comm *comm;
extern int adjust_slip(void);
static inline void send(void **addr)
{
static __thread int nb_iter = 0;
assert(addr != NULL);
if (nb_iter == ADJUST_FREQ)
{
adjust_slip();
nb_iter = 0;
}
while (1)
{
if (comm->shared_space[comm->head] != NULL)
continue;
comm->shared_space[comm->head] = addr;
comm->head = (comm->head + 1) % SHARED_SPACE_VOIDPTR;
break;
}
}
__END_DECLS
#endif