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#define PK_IMPL_UUID
#define PK_IMPL_TMR
// #define PK_UUID_CLOCK CLOCK_REALTIME_ALARM
#include "../pkmacros.h"
#include "../pkuuid.h"
#include "../pktmr.h"
#include <stdio.h>
void
print_uuid_v7_breakdown(FILE *f, struct pk_uuid id)
{
fprintf(f, "-------------------------------------------\n");
fprintf(f, "field bits value\n");
fprintf(f, "-------------------------------------------\n");
fprintf(f, "unix_ts_ms 48 0x");
fprintf(f, "%.2x", id.uuid[0]);
fprintf(f, "%.2x", id.uuid[1]);
fprintf(f, "%.2x", id.uuid[2]);
fprintf(f, "%.2x", id.uuid[3]);
fprintf(f, "%.2x", id.uuid[4]);
fprintf(f, "%.2x", id.uuid[5]);
fprintf(f, "\n");
fprintf(f, "ver 4 0x");
fprintf(f, "%.x", (id.uuid[6] & 0xF0) >> 4);
fprintf(f, "\n");
fprintf(f, "rand_a 12 0x");
fprintf(f, "%.1x", (id.uuid[6] & 0x0F));
fprintf(f, "%.2x", id.uuid[7]);
fprintf(f, "\n");
fprintf(f, "var 2 0b");
fprintf(f, "%.c", (id.uuid[8] & 0x80) ? '1' : '0');
fprintf(f, "%.c", (id.uuid[8] & 0x40) ? '1' : '0');
fprintf(f, "\n");
fprintf(f, "rand_b 62 0b");
fprintf(f, "%.c", (id.uuid[8] & 0x20) ? '1' : '0');
fprintf(f, "%.c", (id.uuid[8] & 0x10) ? '1' : '0');
fprintf(f, ", 0x");
fprintf(f, "%.x", (id.uuid[8] & 0x0F));
fprintf(f, "%.2x", id.uuid[9]);
fprintf(f, "%.2x", id.uuid[10]);
fprintf(f, "%.2x", id.uuid[11]);
fprintf(f, "%.2x", id.uuid[12]);
fprintf(f, "%.2x", id.uuid[13]);
fprintf(f, "%.2x", id.uuid[14]);
fprintf(f, "%.2x", id.uuid[15]);
fprintf(f, "\n");
fprintf(f, "-------------------------------------------\n");
}
int
main(int argc, char *argv[])
{
(void)argc;
(void)argv;
pk_uuid_init(time(NULL));
fprintf(stdout, "\n");
{
struct pk_uuid id;
id = pk_uuid_zed;
fprintf(stdout, "[%s] zed: " pk_uuid_printf_format "\n", __FILE__, pk_uuid_printf_var(id));
}
{
struct pk_uuid id;
id = pk_uuid_max;
fprintf(stdout, "[%s] one: " pk_uuid_printf_format "\n", __FILE__, pk_uuid_printf_var(id));
}
{
const int count = 4;
struct pk_uuid ids[count];
for (int i = 0; i < count; ++i) {
ids[i] = pk_uuid_new_v7();
}
for (int i = 0; i < count; ++i) {
fprintf(stdout, "[%s] new: " pk_uuid_printf_format "\n", __FILE__, pk_uuid_printf_var(ids[i]));
}
for (int i = 0; i < count; ++i) {
fprintf(stdout, "\n");
print_uuid_v7_breakdown(stdout, ids[i]);
fprintf(stdout, "[%s] new: " pk_uuid_printf_format "\n", __FILE__, pk_uuid_printf_var(ids[i]));
}
fprintf(stdout, "\n");
}
{
double ms;
const int count = 1000;
struct pk_uuid ids[count];
struct pk_tmr tmr;
pk_tmr_start(tmr);
for (int i = 0; i < count; ++i) {
ids[i] = pk_uuid_new_v7();
}
pk_tmr_stop(tmr);
fprintf(stdout, "generated %i ids...\n", count);
ms = pk_tmr_duration_dbl_mili(tmr);
fprintf(stdout, "elapsed time : %f ms\n", ms);
fprintf(stdout, "elapsed time (avg): %f ms\n", ms / (double)count);
fprintf(stdout, pk_uuid_printf_format "\n", pk_uuid_printf_var(ids[0]));
fprintf(stdout, pk_uuid_printf_format "\n", pk_uuid_printf_var(ids[99]));
}
// not really a test, just checking time
/* 2025-03-19 JCB - Disabled because we added a macro to define the clock
* instead of passing it as a parameter.
{
double ms;
const int count = 1000;
struct pk_uuid ids[count];
struct pk_tmr tmr;
pk_tmr_start(tmr);
for (int i = 0; i < count; ++i) {
ids[i] = pk_uuid_new_v7(CLOCK_REALTIME);
}
pk_tmr_stop(tmr);
fprintf(stdout, "generated %i ids using CLOCK_REALTIME...\n", count);
ms = pk_tmr_duration_dbl_mili(tmr);
fprintf(stdout, "elapsed time : %f ms\n", ms);
fprintf(stdout, "elapsed time (avg): %f ms\n", ms / (double)count);
fprintf(stdout, pk_uuid_printf_format "\n", pk_uuid_printf_var(ids[0]));
fprintf(stdout, pk_uuid_printf_format "\n", pk_uuid_printf_var(ids[99]));
pk_tmr_start(tmr);
for (int i = 0; i < count; ++i) {
ids[i] = pk_uuid_new_v7(CLOCK_REALTIME_COARSE);
}
pk_tmr_stop(tmr);
fprintf(stdout, "generated %i ids using CLOCK_REALTIME_COARSE...\n", count);
ms = pk_tmr_duration_dbl_mili(tmr);
fprintf(stdout, "elapsed time : %f ms\n", ms);
fprintf(stdout, "elapsed time (avg): %f ms\n", ms / (double)count);
fprintf(stdout, pk_uuid_printf_format "\n", pk_uuid_printf_var(ids[0]));
fprintf(stdout, pk_uuid_printf_format "\n", pk_uuid_printf_var(ids[99]));
pk_tmr_start(tmr);
for (int i = 0; i < count; ++i) {
ids[i] = pk_uuid_new_v7(CLOCK_TAI);
}
pk_tmr_stop(tmr);
fprintf(stdout, "generated %i ids using CLOCK_TAI...\n", count);
ms = pk_tmr_duration_dbl_mili(tmr);
fprintf(stdout, "elapsed time : %f ms\n", ms);
fprintf(stdout, "elapsed time (avg): %f ms\n", ms / (double)count);
fprintf(stdout, pk_uuid_printf_format "\n", pk_uuid_printf_var(ids[0]));
fprintf(stdout, pk_uuid_printf_format "\n", pk_uuid_printf_var(ids[99]));
}
*/
pk_uuid_teardown();
return 0;
}
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