#ifndef _TRACE_H
#define _TRACE_H

typedef enum
{
    TraceOk = 0,
    TraceRead = 1,
    TraceWrite = 2,
    TraceEOF = 3,
    TraceFileOpenFailed = -1,
    TraceBadTraceFile = -2,
    TraceNoTraceFile = -3,
    TraceBadArgs = -4,
} TraceCode;

typedef enum { DirectMapped, TwoWayLRU } org_type;
typedef enum { WriteThrough, WriteBack } policy_type;

typedef struct
{
    int cachesize;    
    org_type organization;
    int blocksize;
    policy_type policy;
} CacheInfo;

void parse_args( CacheInfo*, int, char** );

TraceCode start_trace_file( char* fn );
TraceCode get_next_reference( unsigned int* address, int* count );
void show_statistics( int rh, int rm, int wh, int wm, int br, int bw );

#endif