XBT_PUBLIC smx_activity_t simcall_comm_isend(smx_actor_t sender, smx_mailbox_t mbox, double task_size, double rate,
void* src_buff, size_t src_buff_size,
int (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
void (*clean_fun)(void*),
XBT_PUBLIC smx_activity_t simcall_comm_isend(smx_actor_t sender, smx_mailbox_t mbox, double task_size, double rate,
void* src_buff, size_t src_buff_size,
int (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
void (*clean_fun)(void*),