sched.c

#include "defs.h"

#include <sched.h>

#include "xlat/schedulers.h"
#include "xlat/sched_flags.h"

SYS_FUNC(sched_getscheduler)
{
	if (entering(tcp)) {
		tprintf("%d", (int) tcp->u_arg[0]);
	} else if (!syserror(tcp)) {
		tcp->auxstr = xlookup(schedulers, tcp->u_rval);
		if (tcp->auxstr != NULL)
			return RVAL_STR;
	}
	return 0;
}

SYS_FUNC(sched_setscheduler)
{
	tprintf("%d, ", (int) tcp->u_arg[0]);
	printxval(schedulers, tcp->u_arg[1], "SCHED_???");
	tprints(", ");
	printnum_int(tcp, tcp->u_arg[2], "%d");

	return RVAL_DECODED;
}

SYS_FUNC(sched_getparam)
{
	if (entering(tcp))
		tprintf("%d, ", (int) tcp->u_arg[0]);
	else
		printnum_int(tcp, tcp->u_arg[1], "%d");
	return 0;
}

SYS_FUNC(sched_setparam)
{
	tprintf("%d, ", (int) tcp->u_arg[0]);
	printnum_int(tcp, tcp->u_arg[1], "%d");

	return RVAL_DECODED;
}

SYS_FUNC(sched_get_priority_min)
{
	printxval(schedulers, tcp->u_arg[0], "SCHED_???");

	return RVAL_DECODED;
}

SYS_FUNC(sched_rr_get_interval)
{
	if (entering(tcp)) {
		tprintf("%d, ", (int) tcp->u_arg[0]);
	} else {
		if (syserror(tcp))
			printaddr(tcp->u_arg[1]);
		else
			print_timespec(tcp, tcp->u_arg[1]);
	}
	return 0;
}

static void
print_sched_attr(struct tcb *tcp, const long addr, unsigned int size)
{
	struct {
		uint32_t size;
		uint32_t sched_policy;
		uint64_t sched_flags;
		uint32_t sched_nice;
		uint32_t sched_priority;
		uint64_t sched_runtime;
		uint64_t sched_deadline;
		uint64_t sched_period;
	} attr = {};

	if (size > sizeof(attr))
		size = sizeof(attr);
	if (umoven_or_printaddr(tcp, addr, size, &attr))
		return;

	tprintf("{size=%u, sched_policy=", attr.size);
	printxval(schedulers, attr.sched_policy, "SCHED_???");
	tprints(", sched_flags=");
	printflags(sched_flags, attr.sched_flags, "SCHED_FLAG_???");
	tprintf(", sched_nice=%d", attr.sched_nice);
	tprintf(", sched_priority=%u", attr.sched_priority);
	tprintf(", sched_runtime=%" PRIu64, attr.sched_runtime);
	tprintf(", sched_deadline=%" PRIu64, attr.sched_deadline);
	tprintf(", sched_period=%" PRIu64 "}", attr.sched_period);
}

SYS_FUNC(sched_setattr)
{
	tprintf("%d, ", (int) tcp->u_arg[0]);
	print_sched_attr(tcp, tcp->u_arg[1], 0x100);
	tprintf(", %u", (unsigned int) tcp->u_arg[2]);

	return RVAL_DECODED;
}

SYS_FUNC(sched_getattr)
{
	if (entering(tcp)) {
		tprintf("%d, ", (int) tcp->u_arg[0]);
	} else {
		print_sched_attr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
		tprintf(", %u, %u",
			(unsigned int) tcp->u_arg[2],
			(unsigned int) tcp->u_arg[3]);
	}

	return 0;
}