#include "../mng/mng.h"
#include "ksort.h"
#include "../containers/vector"
using namespace stxxl;
struct my_type
{
typedef unsigned key_type;
key_type _key;
char _data[128 - sizeof(key_type)];
key_type key() const {return _key; };
my_type() {};
my_type(key_type __key):_key(__key) {};
static my_type min_value(){ return my_type(0); };
static my_type max_value(){ return my_type(0xffffffff); };
};
bool operator < (const my_type & a, const my_type & b)
{
return a.key() < b.key();
}
int main()
{
my_type::key_type max_key = 1*1024*1024;
unsigned int block_size = 1*1024*1024;
unsigned int records_in_block = block_size / sizeof(my_type);
my_type * array = (my_type *) aligned_alloc<BLOCK_ALIGN>(block_size);
syscall_file f("./in",file::CREAT|file::RDWR);
request_ptr req;
my_type::key_type cur_key = max_key;
for(unsigned i =0; i < max_key/records_in_block;i++ )
{
for(unsigned j=0; j < records_in_block;j++)
array[j]._key = cur_key--;
req = f.awrite((void *)array,stxxl::int64(i)*block_size,block_size,stxxl::default_completion_handler());
req->wait();
};
aligned_dealloc<BLOCK_ALIGN>(array);
return 0;
}