/**
* \ingroup simix_comm_management
*/
-void simcall_comm_send(smx_actor_t sender, smx_mailbox_t mbox, double task_size, double rate, void* src_buff,
+void simcall_comm_send(smx_actor_t sender, smx_mailbox_t mbox, size_t task_size, double rate, void* src_buff,
size_t src_buff_size, int (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
void (*copy_data_fun)(smx_activity_t, void*, size_t), void* data, double timeout)
{
/**
* \ingroup simix_comm_management
*/
-smx_activity_t simcall_comm_isend(smx_actor_t sender, smx_mailbox_t mbox, double task_size, double rate, void* src_buff,
+smx_activity_t simcall_comm_isend(smx_actor_t sender, smx_mailbox_t mbox, size_t 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*), void (*copy_data_fun)(smx_activity_t, void*, size_t),