smx_action_t SIMIX_comm_isend(smx_process_t src_proc, smx_rdv_t rdv,
double task_size, double rate,
void *src_buff, size_t src_buff_size,
int (*match_fun)(void *, void *, smx_action_t),
void (*clean_fun)(void *), // used to free the action in case of problem after a detached send
smx_action_t SIMIX_comm_isend(smx_process_t src_proc, smx_rdv_t rdv,
double task_size, double rate,
void *src_buff, size_t src_buff_size,
int (*match_fun)(void *, void *, smx_action_t),
void (*clean_fun)(void *), // used to free the action in case of problem after a detached send