// run basic benchmark to estimate CPU clock frequency
void estimate_cpu_clock(void)
{
printf(" estimating cpu clock frequency...\n");
unsigned long int i, n = 1<<4;
struct rusage start, finish;
double extime;
do {
// trials
n <<= 1;
unsigned int x=0;
getrusage(RUSAGE_SELF, &start);
for (i=0; i<n; i++) {
// perform mindless task
x <<= 1;
x |= 1;
x &= 0xff;
x ^= 0xff;
}
getrusage(RUSAGE_SELF, &finish);
extime = calculate_execution_time(start, finish);
} while (extime < 0.5 && n < (1<<28));
// estimate cpu clock frequency
cpu_clock = 23.9 * n / extime;
printf(" performed %ld trials in %5.1f ms\n", n, extime * 1e3);
float clock_format = cpu_clock;
char clock_units = convert_units(&clock_format);
printf(" estimated clock speed: %7.3f %cHz\n", clock_format, clock_units);
}
TEST(UnitsInterface, Newton_to_Pound)
{
UnitsConvFn_t Newton_to_Pound;
UnitsConvFn_t Newton_to_Pound2;
Units_t* Newton = (Units_t*) NULL;
Units_t* Pound = (Units_t*) NULL;
double pounds;
ASSERT_EQ(CONV_OK, conv_fn_s("kg*m/s2", "lbm*ft/s2", &Newton_to_Pound));
Newton = new_units("kg*m/s2");
Pound = new_units("lbm*ft/s2");
ASSERT_NE((Units_t*) NULL, Newton);
ASSERT_NE((Units_t*) NULL, Pound);
ASSERT_EQ(CONV_OK, conv_fn_u(Newton, Pound, &Newton_to_Pound2));
EXPECT_EQ(0, memcmp(&Newton_to_Pound, &Newton_to_Pound2, sizeof(UnitsConvFn_t)));
pounds = convert_units(1.0, &Newton_to_Pound);
ASSERT_NEAR((1.0/(0.45359237*0.3048)), pounds, TOL);
clean_up_Units_t(&Newton);
clean_up_Units_t(&Pound);
ASSERT_EQ((Units_t*) NULL, Newton);
ASSERT_EQ((Units_t*) NULL, Pound);
}
size slider_impl::minimum_size(const optional_size& aAvailableSpace) const
{
if (has_minimum_size())
return widget::minimum_size(aAvailableSpace);
scoped_units su(*this, UnitsPixels);
return convert_units(*this, su.saved_units(), size{ 96, 16 });
}
size image_widget::minimum_size(const optional_size& aAvailableSpace) const
{
if (has_minimum_size())
return widget::minimum_size(aAvailableSpace);
scoped_units su(*this, UnitsPixels);
size result = iTexture.extents();
return convert_units(*this, su.saved_units(), result);
}
int
main(int argc, char *argv[])
{
netsnmp_session session, *ss;
netsnmp_pdu *pdu;
netsnmp_pdu *response;
int arg;
oid base[MAX_OID_LEN];
size_t base_length;
int status;
netsnmp_variable_list *saved = NULL, *vlp = saved, *vlp2;
int count = 0;
/*
* get the common command line arguments
*/
switch (arg = snmp_parse_args(argc, argv, &session, "C:", optProc)) {
case NETSNMP_PARSE_ARGS_ERROR:
exit(1);
case NETSNMP_PARSE_ARGS_SUCCESS_EXIT:
exit(0);
case NETSNMP_PARSE_ARGS_ERROR_USAGE:
usage();
exit(1);
default:
break;
}
if (arg != argc) {
fprintf(stderr, "snmpdf: extra argument: %s\n", argv[arg]);
exit(1);
}
SOCK_STARTUP;
/*
* Open an SNMP session.
*/
ss = snmp_open(&session);
if (ss == NULL) {
/*
* diagnose snmp_open errors with the input netsnmp_session pointer
*/
snmp_sess_perror("snmpdf", &session);
SOCK_CLEANUP;
exit(1);
}
printf("%-18s %15s %15s %15s %5s\n", "Description", "size (kB)",
"Used", "Available", "Used%");
if (ucd_mib == 0) {
/*
* * Begin by finding all the storage pieces that are of
* * type hrStorageFixedDisk, which is a standard disk.
*/
pdu = snmp_pdu_create(SNMP_MSG_GETNEXT);
base_length =
add(pdu, "HOST-RESOURCES-MIB:hrStorageIndex", NULL, 0);
memcpy(base, pdu->variables->name, base_length * sizeof(oid));
vlp = collect(ss, pdu, base, base_length);
while (vlp) {
size_t units;
unsigned long hssize, hsused;
char descr[SPRINT_MAX_LEN];
int len;
pdu = snmp_pdu_create(SNMP_MSG_GET);
add(pdu, "HOST-RESOURCES-MIB:hrStorageDescr",
&(vlp->name[base_length]), vlp->name_length - base_length);
add(pdu, "HOST-RESOURCES-MIB:hrStorageAllocationUnits",
&(vlp->name[base_length]), vlp->name_length - base_length);
add(pdu, "HOST-RESOURCES-MIB:hrStorageSize",
&(vlp->name[base_length]), vlp->name_length - base_length);
add(pdu, "HOST-RESOURCES-MIB:hrStorageUsed",
&(vlp->name[base_length]), vlp->name_length - base_length);
status = snmp_synch_response(ss, pdu, &response);
if (status != STAT_SUCCESS || !response) {
snmp_sess_perror("snmpdf", ss);
exit(1);
}
vlp2 = response->variables;
len = vlp2->val_len;
if (len >= SPRINT_MAX_LEN) len = SPRINT_MAX_LEN-1;
memcpy(descr, vlp2->val.string, len);
descr[len] = '\0';
vlp2 = vlp2->next_variable;
units = vlp2->val.integer ? *(vlp2->val.integer) : 0;
vlp2 = vlp2->next_variable;
hssize = vlp2->val.integer ? *(vlp2->val.integer) : 0;
vlp2 = vlp2->next_variable;
hsused = vlp2->val.integer ? *(vlp2->val.integer) : 0;
printf("%-18s %15lu %15lu %15lu %4lu%%\n", descr,
units ? convert_units(hssize, units, 1024) : hssize,
units ? convert_units(hsused, units, 1024) : hsused,
units ? convert_units(hssize-hsused, units, 1024) : hssize -
hsused, hssize ? convert_units(hsused, 100, hssize) :
hsused);
vlp = vlp->next_variable;
snmp_free_pdu(response);
count++;
}
}
if (count == 0) {
size_t units = 0;
/*
* the host resources mib must not be supported. Lets try the
* UCD-SNMP-MIB and its dskTable
*/
pdu = snmp_pdu_create(SNMP_MSG_GETNEXT);
base_length = add(pdu, "UCD-SNMP-MIB:dskIndex", NULL, 0);
memcpy(base, pdu->variables->name, base_length * sizeof(oid));
vlp = collect(ss, pdu, base, base_length);
while (vlp) {
unsigned long hssize, hsused;
char descr[SPRINT_MAX_LEN];
pdu = snmp_pdu_create(SNMP_MSG_GET);
add(pdu, "UCD-SNMP-MIB:dskPath",
&(vlp->name[base_length]), vlp->name_length - base_length);
add(pdu, "UCD-SNMP-MIB:dskTotal",
&(vlp->name[base_length]), vlp->name_length - base_length);
add(pdu, "UCD-SNMP-MIB:dskUsed",
&(vlp->name[base_length]), vlp->name_length - base_length);
status = snmp_synch_response(ss, pdu, &response);
if (status != STAT_SUCCESS || !response) {
snmp_sess_perror("snmpdf", ss);
exit(1);
}
vlp2 = response->variables;
memcpy(descr, vlp2->val.string, vlp2->val_len);
descr[vlp2->val_len] = '\0';
vlp2 = vlp2->next_variable;
hssize = *(vlp2->val.integer);
vlp2 = vlp2->next_variable;
hsused = *(vlp2->val.integer);
printf("%-18s %15lu %15lu %15lu %4lu%%\n", descr,
units ? convert_units(hssize, units, 1024) : hssize,
units ? convert_units(hsused, units, 1024) : hsused,
units ? convert_units(hssize-hsused, units, 1024) : hssize -
hsused, hssize ? convert_units(hsused, 100, hssize) :
hsused);
vlp = vlp->next_variable;
snmp_free_pdu(response);
count++;
}
}
if (count == 0) {
fprintf(stderr, "Failed to locate any partitions.\n");
exit(1);
}
snmp_close(ss);
SOCK_CLEANUP;
return 0;
} /* end main() */
