SOM_Scope string SOMLINK display(dAnimal somSelf, Environment *ev)
{
string bp;
dAnimalData *somThis = dAnimalGetData(somSelf);
dAnimalMethodDebug("dAnimal","display");
bp = _buff;
sprintf(bp, "\nI am a %s.\n", _type);
bp += strlen(bp);
sprintf(bp, "My name is %s.\n", _name);
bp += strlen(bp);
sprintf(bp, "I like to eat %s.\n", _food);
bp += strlen(bp);
sprintf(bp, "I live in %s, %s.\n", __get_city(_loc, ev), __get_state(_loc, ev));
return _buff;
}
static unsigned long __wait_and_sum_others(struct ctx *ctx, int cpu)
{
int i;
unsigned long total;
for (i = 0, total = plen; i < ctx->cpus; i++) {
if (i == cpu)
continue;
while ((__get_state(i) &
(CPU_STATS_STATE_CFG |
CPU_STATS_STATE_RES)) == 0 &&
sigint == 0)
sched_yield();
total += stats[i].cf_packets;
}
return total;
}
static void __correct_global_delta(struct ctx *ctx, unsigned int cpu, unsigned long orig)
{
unsigned int i;
unsigned long total;
int cpu_sel;
long long delta_correction = 0;
for (i = 0, total = ctx->num; i < ctx->cpus; i++) {
if (i == cpu)
continue;
while ((__get_state(i) &
(CPU_STATS_STATE_CHK |
CPU_STATS_STATE_RES)) == 0 &&
sigint == 0)
sched_yield();
total += stats[i].cd_packets;
}
if (total > orig)
delta_correction = -1 * ((long long) total - orig);
if (total < orig)
delta_correction = +1 * ((long long) orig - total);
for (cpu_sel = -1, i = 0; i < ctx->cpus; i++) {
if (stats[i].cd_packets > 0) {
if ((long long) stats[i].cd_packets +
delta_correction >= 0) {
cpu_sel = i;
break;
}
}
}
if ((int) cpu == cpu_sel)
ctx->num += delta_correction;
}
int main(int argc, char **argv)
{
bool slow = false, invoke_cpp = false, reseed = true;
int c, opt_index, i, j, vals[4] = {0}, irq;
char *confname = NULL, *ptr;
unsigned long cpus_tmp, orig_num = 0;
unsigned long long tx_packets, tx_bytes;
struct ctx ctx;
fmemset(&ctx, 0, sizeof(ctx));
ctx.cpus = get_number_cpus_online();
ctx.uid = getuid();
ctx.gid = getgid();
while ((c = getopt_long(argc, argv, short_options, long_options,
&opt_index)) != EOF) {
switch (c) {
case 'h':
help();
break;
case 'v':
version();
break;
case 'e':
example();
break;
case 'p':
invoke_cpp = true;
break;
case 'V':
ctx.verbose = true;
break;
case 'P':
cpus_tmp = strtoul(optarg, NULL, 0);
if (cpus_tmp > 0 && cpus_tmp < ctx.cpus)
ctx.cpus = cpus_tmp;
break;
case 'd':
case 'o':
ctx.device = xstrndup(optarg, IFNAMSIZ);
break;
case 'r':
ctx.rand = true;
break;
case 's':
slow = true;
ctx.cpus = 1;
ctx.smoke_test = true;
ctx.rhost = xstrdup(optarg);
break;
case 'R':
ctx.rfraw = true;
break;
case 'J':
ctx.jumbo_support = true;
break;
case 'c':
case 'i':
confname = xstrdup(optarg);
if (!strncmp("-", confname, strlen("-")))
ctx.cpus = 1;
break;
case 'u':
ctx.uid = strtoul(optarg, NULL, 0);
ctx.enforce = true;
break;
case 'g':
ctx.gid = strtoul(optarg, NULL, 0);
ctx.enforce = true;
break;
case 'k':
ctx.kpull = strtoul(optarg, NULL, 0);
break;
case 'E':
seed = strtoul(optarg, NULL, 0);
reseed = false;
break;
case 'n':
orig_num = strtoul(optarg, NULL, 0);
ctx.num = orig_num;
break;
case 't':
slow = true;
ctx.gap = strtoul(optarg, NULL, 0);
if (ctx.gap > 0)
/* Fall back to single core to not
* mess up correct timing. We are slow
* anyway!
*/
ctx.cpus = 1;
break;
case 'S':
ptr = optarg;
ctx.reserve_size = 0;
for (j = i = strlen(optarg); i > 0; --i) {
if (!isdigit(optarg[j - i]))
break;
ptr++;
}
if (!strncmp(ptr, "KiB", strlen("KiB")))
ctx.reserve_size = 1 << 10;
else if (!strncmp(ptr, "MiB", strlen("MiB")))
ctx.reserve_size = 1 << 20;
else if (!strncmp(ptr, "GiB", strlen("GiB")))
ctx.reserve_size = 1 << 30;
else
panic("Syntax error in ring size param!\n");
*ptr = 0;
ctx.reserve_size *= strtol(optarg, NULL, 0);
break;
case '?':
switch (optopt) {
case 'd':
case 'c':
case 'n':
case 'S':
case 's':
case 'P':
case 'o':
case 'E':
case 'i':
case 'k':
case 'u':
case 'g':
case 't':
panic("Option -%c requires an argument!\n",
optopt);
default:
if (isprint(optopt))
printf("Unknown option character `0x%X\'!\n", optopt);
die();
}
default:
break;
}
}
if (argc < 5)
help();
if (ctx.device == NULL)
panic("No networking device given!\n");
if (confname == NULL)
panic("No configuration file given!\n");
if (device_mtu(ctx.device) == 0)
panic("This is no networking device!\n");
register_signal(SIGINT, signal_handler);
register_signal(SIGHUP, signal_handler);
register_signal_f(SIGALRM, timer_elapsed, SA_SIGINFO);
set_system_socket_memory(vals, array_size(vals));
xlockme();
if (ctx.rfraw) {
ctx.device_trans = xstrdup(ctx.device);
xfree(ctx.device);
enter_rfmon_mac80211(ctx.device_trans, &ctx.device);
sleep(0);
}
irq = device_irq_number(ctx.device);
device_set_irq_affinity_list(irq, 0, ctx.cpus - 1);
stats = setup_shared_var(ctx.cpus);
for (i = 0; i < ctx.cpus; i++) {
pid_t pid = fork();
switch (pid) {
case 0:
if (reseed)
seed = generate_srand_seed();
srand(seed);
cpu_affinity(i);
main_loop(&ctx, confname, slow, i, invoke_cpp, orig_num);
goto thread_out;
case -1:
panic("Cannot fork processes!\n");
}
}
for (i = 0; i < ctx.cpus; i++) {
int status;
wait(&status);
if (WEXITSTATUS(status) == EXIT_FAILURE)
die();
}
if (ctx.rfraw)
leave_rfmon_mac80211(ctx.device_trans, ctx.device);
reset_system_socket_memory(vals, array_size(vals));
for (i = 0, tx_packets = tx_bytes = 0; i < ctx.cpus; i++) {
while ((__get_state(i) & CPU_STATS_STATE_RES) == 0)
sched_yield();
tx_packets += stats[i].tx_packets;
tx_bytes += stats[i].tx_bytes;
}
fflush(stdout);
printf("\n");
printf("\r%12llu packets outgoing\n", tx_packets);
printf("\r%12llu bytes outgoing\n", tx_bytes);
for (i = 0; i < ctx.cpus; i++) {
printf("\r%12lu sec, %lu usec on CPU%d (%llu packets)\n",
stats[i].tv_sec, stats[i].tv_usec, i,
stats[i].tx_packets);
}
thread_out:
xunlockme();
destroy_shared_var(stats, ctx.cpus);
device_restore_irq_affinity_list();
free(ctx.device);
free(ctx.device_trans);
free(ctx.rhost);
free(confname);
return 0;
}
int main(int argc, char **argv)
{
bool slow = false, invoke_cpp = false, reseed = true, cpustats = true;
bool prio_high = false, set_irq_aff = true, set_sock_mem = true;
int c, opt_index, vals[4] = {0}, irq;
uint64_t gap = 0;
unsigned int i, j;
char *confname = NULL, *ptr;
unsigned long cpus_tmp, orig_num = 0;
unsigned long long tx_packets, tx_bytes;
struct ctx ctx;
fmemset(&ctx, 0, sizeof(ctx));
ctx.cpus = get_number_cpus_online();
ctx.uid = getuid();
ctx.gid = getgid();
ctx.qdisc_path = false;
/* Keep an initial small default size to reduce cache-misses. */
ctx.reserve_size = 512 * (1 << 10);
while ((c = getopt_long(argc, argv, short_options, long_options,
&opt_index)) != EOF) {
switch (c) {
case 'h':
help();
break;
case 'v':
version();
break;
case 'C':
cpustats = false;
break;
case 'e':
example();
break;
case 'p':
invoke_cpp = true;
break;
case 'V':
ctx.verbose = true;
break;
case 'P':
cpus_tmp = strtoul(optarg, NULL, 0);
if (cpus_tmp > 0 && cpus_tmp < ctx.cpus)
ctx.cpus = cpus_tmp;
break;
case 'd':
case 'o':
ctx.device = xstrndup(optarg, IFNAMSIZ);
break;
case 'H':
prio_high = true;
break;
case 'A':
set_sock_mem = false;
break;
case 'Q':
set_irq_aff = false;
break;
case 'q':
ctx.qdisc_path = true;
break;
case 'r':
ctx.rand = true;
break;
case 's':
slow = true;
ctx.cpus = 1;
ctx.smoke_test = true;
ctx.rhost = xstrdup(optarg);
break;
case 'R':
ctx.rfraw = true;
break;
case 'J':
ctx.jumbo_support = true;
break;
case 'c':
case 'i':
confname = xstrdup(optarg);
if (!strncmp("-", confname, strlen("-")))
ctx.cpus = 1;
break;
case 'u':
ctx.uid = strtoul(optarg, NULL, 0);
ctx.enforce = true;
break;
case 'g':
ctx.gid = strtoul(optarg, NULL, 0);
ctx.enforce = true;
break;
case 'k':
printf("Option -k/--kernel-pull is no longer used and "
"will be removed in a future release!\n");
break;
case 'E':
seed = strtoul(optarg, NULL, 0);
reseed = false;
break;
case 'n':
orig_num = strtoul(optarg, NULL, 0);
ctx.num = orig_num;
break;
case 't':
slow = true;
ptr = optarg;
prctl(PR_SET_TIMERSLACK, 1UL);
gap = strtoul(optarg, NULL, 0);
for (j = i = strlen(optarg); i > 0; --i) {
if (!isdigit(optarg[j - i]))
break;
ptr++;
}
if (!strncmp(ptr, "ns", strlen("ns"))) {
ctx.gap.tv_sec = gap / 1000000000;
ctx.gap.tv_nsec = gap % 1000000000;
} else if (*ptr == '\0' || !strncmp(ptr, "us", strlen("us"))) {
/* Default to microseconds for backwards
* compatibility if no postfix is given.
*/
ctx.gap.tv_sec = gap / 1000000;
ctx.gap.tv_nsec = (gap % 1000000) * 1000;
} else if (!strncmp(ptr, "ms", strlen("ms"))) {
ctx.gap.tv_sec = gap / 1000;
ctx.gap.tv_nsec = (gap % 1000) * 1000000;
} else if (!strncmp(ptr, "s", strlen("s"))) {
ctx.gap.tv_sec = gap;
ctx.gap.tv_nsec = 0;
} else
panic("Syntax error in time param!\n");
if (gap > 0)
/* Fall back to single core to not mess up
* correct timing. We are slow anyway!
*/
ctx.cpus = 1;
break;
case 'S':
ptr = optarg;
for (j = i = strlen(optarg); i > 0; --i) {
if (!isdigit(optarg[j - i]))
break;
ptr++;
}
if (!strncmp(ptr, "KiB", strlen("KiB")))
ctx.reserve_size = 1 << 10;
else if (!strncmp(ptr, "MiB", strlen("MiB")))
ctx.reserve_size = 1 << 20;
else if (!strncmp(ptr, "GiB", strlen("GiB")))
ctx.reserve_size = 1 << 30;
else
panic("Syntax error in ring size param!\n");
ctx.reserve_size *= strtoul(optarg, NULL, 0);
break;
case '?':
switch (optopt) {
case 'd':
case 'c':
case 'n':
case 'S':
case 's':
case 'P':
case 'o':
case 'E':
case 'i':
case 'k':
case 'u':
case 'g':
case 't':
panic("Option -%c requires an argument!\n",
optopt);
default:
if (isprint(optopt))
printf("Unknown option character `0x%X\'!\n", optopt);
die();
}
default:
break;
}
}
if (argc < 5)
help();
if (ctx.device == NULL)
panic("No networking device given!\n");
if (confname == NULL)
panic("No configuration file given!\n");
if (device_mtu(ctx.device) == 0)
panic("This is no networking device!\n");
register_signal(SIGINT, signal_handler);
register_signal(SIGQUIT, signal_handler);
register_signal(SIGTERM, signal_handler);
register_signal(SIGHUP, signal_handler);
if (prio_high) {
set_proc_prio(-20);
set_sched_status(SCHED_FIFO, sched_get_priority_max(SCHED_FIFO));
}
if (set_sock_mem)
set_system_socket_memory(vals, array_size(vals));
xlockme();
if (ctx.rfraw) {
ctx.device_trans = xstrdup(ctx.device);
xfree(ctx.device);
enter_rfmon_mac80211(ctx.device_trans, &ctx.device);
panic_handler_add(on_panic_del_rfmon, ctx.device);
sleep(0);
}
/*
* If number of packets is smaller than number of CPUs use only as
* many CPUs as there are packets. Otherwise we end up sending more
* packets than intended or none at all.
*/
if (ctx.num)
ctx.cpus = min_t(unsigned int, ctx.num, ctx.cpus);
irq = device_irq_number(ctx.device);
if (set_irq_aff)
device_set_irq_affinity_list(irq, 0, ctx.cpus - 1);
stats = setup_shared_var(ctx.cpus);
for (i = 0; i < ctx.cpus; i++) {
pid_t pid = fork();
switch (pid) {
case 0:
if (reseed)
seed = generate_srand_seed();
srand(seed);
cpu_affinity(i);
main_loop(&ctx, confname, slow, i, invoke_cpp, orig_num);
goto thread_out;
case -1:
panic("Cannot fork processes!\n");
}
}
for (i = 0; i < ctx.cpus; i++) {
int status;
wait(&status);
if (WEXITSTATUS(status) == EXIT_FAILURE)
die();
}
if (ctx.rfraw)
leave_rfmon_mac80211(ctx.device);
if (set_sock_mem)
reset_system_socket_memory(vals, array_size(vals));
for (i = 0, tx_packets = tx_bytes = 0; i < ctx.cpus; i++) {
while ((__get_state(i) & CPU_STATS_STATE_RES) == 0)
sched_yield();
tx_packets += stats[i].tx_packets;
tx_bytes += stats[i].tx_bytes;
}
fflush(stdout);
printf("\n");
printf("\r%12llu packets outgoing\n", tx_packets);
printf("\r%12llu bytes outgoing\n", tx_bytes);
for (i = 0; cpustats && i < ctx.cpus; i++) {
printf("\r%12lu sec, %lu usec on CPU%d (%llu packets)\n",
stats[i].tv_sec, stats[i].tv_usec, i,
stats[i].tx_packets);
}
thread_out:
xunlockme();
destroy_shared_var(stats, ctx.cpus);
if (set_irq_aff)
device_restore_irq_affinity_list();
free(ctx.device);
free(ctx.device_trans);
free(ctx.rhost);
free(confname);
return 0;
}
