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#include <apos/uapi.h>
#include <apos/ipi.h>
/**
* @file dispatch.c
*
* Interface between assembly and C for dispatching syscalls/IPIs.
* In apos, IPIs are a higher level concept and is not expected to be handled by
* the underlying architecture. Instead, we only require that there is some way
* to trigger an interrupt in some other core, and check if the interrupt was an
* IPI or syscall in C.
*/
/**
* Syscall/IPI handler.
* If a syscall was triggered, parameters have the meaning they are given.
* Otherwise, they are meaningless and unused.
*
* @param a Syscall number.
* @param b Argument 0.
* @param c Argument 1.
* @param d Argument 2.
* @param e Argument 3.
* @param f Argument 4.
* @return Return value of taken action.
*/
struct sys_ret dispatch(sys_arg_t a, sys_arg_t b, sys_arg_t c,
sys_arg_t d, sys_arg_t e, sys_arg_t f)
{
struct tcb *t = cur_tcb();
if (clear_ipi(t))
return handle_ipi(t);
return handle_syscall(t, a, b, c, d, e, f);
}
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