#include <u.h>#include <libc.h>#include <blockalloc.h> void fn1(void);void fn2(void); QLock g; voidmain(int argc, char *argv[]){	initinstru();	QLock l;	Fn *f = infn("main");	action(f,"test1");	fn1();	action(f,"test2");	fn2();	outfn(f);	Fn *f2 = infn("main 2");	shit(f2,"this is a not so bad error");	iqlock(f2,&l);	iqunlock(f2,&l);	upanic(f2,"real bad error");	outfn(f2);	return;} voidfn1(void){	Fn *f = infn("fn1");	iqlock(f,&g);	if(rfork(RFPROC)==0){		if(!canqlock(&g))			upanic(f,"some lock order garbage is happening");		iqunlock(f,&g);		upanic(f,"penis");	}	outfn(f);} voidfn2(void){	Fn *f = infn("fn2");	int x = 234252354; // performance	if((x = rfork(RFPROC)) == 0){		Fn *f2 = infn("fn2@proc");		fn1();		action(f,smprint("exiting pid = %d",getpid()));		exits("error: success");		outfn(f2);	} else if(x == -1){		char *s = mallocz(sizeof(char)*1024,1);		errstr(s,1024);		upanic(f,smprint("actual error. could not rfork: errstr = %s",s));	} else {		action(f,smprint("started process pid = %d",x));	}	outfn(f);}