C++ (Cpp) truncfile示例

示例#1

static int truncufiles(const char *db)
{
	if (truncfile(db, AFFTUPOST) < 0)
		return -1;
	if (truncfile(db, AFFTUFIELD) < 0)
		return -1;
	if (truncfile(db, AFFTUFIELD) < 0)
		return -1;

	return 0;
}

示例#2

文件： ext2fs.c 项目： 99years/plan9

static void
ropen(Req *r)
{
	Xfile *f;

	chat("open(fid=%d,mode=%d)...", thdr.fid, thdr.mode);

	errno = 0;
	f = xfile(r->fid, Asis);
	if( !f ){
		errno = Eio;
		goto error;
	}
	
	if(thdr.mode & OTRUNC){
		if( !S_ISREG(getmode(f)) ){
			errno = Eperm;
			goto error;
		}
		if(truncfile(f) < 0){
			goto error;
		}
	}
	chat("f->qid=0x%8.8lux...", r->fid->qid.path);
	rhdr.qid = r->fid->qid;
error:
	response(r);
}