meshb

#include <irrlicht/irrlicht.h>#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <sys/time.h>using namespace irr;using namespace scene;using namespace video;static struct timeval tick;static void settime() {	gettimeofday(&tick, NULL);}static void gettime() {	struct timeval tmp;	gettimeofday(&tmp, NULL);	int usec = (tmp.tv_sec - tick.tv_sec) * 1000000;	usec += (tmp.tv_usec - tick.tv_usec);	printf("%d\n", usec);	settime();}int main(int argc, char **argv) {	IrrlichtDevice *dev = createDevice(EDT_NULL);	IMeshCache *c = dev->getSceneManager()->getMeshCache();	IAnimatedMesh *t, *m = dev->getSceneManager()->addArrowMesh("first");	t = m;	unsigned int rounds = 10000, i;	char name[10];	if (argv[1]) rounds = atoi(argv[1]);	printf("\n\tDoing %u test rounds. Numbers in usecs.\n\n", rounds);	printf("Adding meshes: ");	settime();	for (i = 0; i < rounds; i++) {		sprintf(name, "%u", i);		c->addMesh(name, m);	}	gettime();	printf("Searching: ");	for (i = 0; i < rounds*2; i+=2) {		sprintf(name, "%u", i);		c->getMeshByName(name);	}	gettime();	printf("Deleting: ");	for (i = 0; i < rounds; i++) {		sprintf(name, "%u", i);		m = c->getMeshByName(name);		c->removeMesh(m);	}	gettime();	m = t;	printf("Add-search cycles: ");	for (i = 0; i < rounds; i++) {		sprintf(name, "%u", i);		c->addMesh(name, m);		c->getMeshByName(name);	}	gettime();	dev->drop();	return 0;}