#include <u.h>#include <mingw32.h>#include <mingwutil.h>#define NOPLAN9DEFINES#include <libc.h> #include "fdtab.h"#include "util.h" staticintalloc(HANDLE h, char *name, int type){	int	fd;	Fd	*f; 	fd = fdtalloc(nil);	f = fdtab[fd];	f->h = h;	f->type = type;	f->name = strdup(name);	if (fdtdebug>1)		fprint(2, "%\f\n", fd, f, "create");	return fd;} intp9pipe(int fd[2]){	HANDLE	h0, h1;	char	name[40]; 	wincreatepipename(name, sizeof name); 	if(wincreatenamedpipe(&h1, name, ORDWR, 1) == -1)		return -1; 	h0 = wincreatefile(name,		GENERIC_READ | GENERIC_WRITE, 		FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,		OPEN_EXISTING,		FILE_FLAG_DELETE_ON_CLOSE | FILE_FLAG_OVERLAPPED);	if (h0==INVALID_HANDLE_VALUE) {		winerror("CreateFile");		return -1;	} 	if(winconnectpipe(h1, 1) == -1){		CloseHandle(h0);		return -1;	} 	fd[0] = alloc(h0, name, Fdtypepipecl);	fd[1] = alloc(h1, name, Fdtypepipesrv); 	return 0;}  static int npipes;static QLock lk;char*wincreatepipename(char buf[], int sz){	int	n; 	qlock(&lk);	++npipes;	n = npipes;	qunlock(&lk); 	snprint(buf, sz, "//./pipe/p9pipe-%08x-%08x", GetCurrentProcessId(), n);	return buf;}