/Users/green/Documents/workspace/DavisDB_public/Common.h

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/*
 * Common.h
 *
 *  Created on: Mar 15, 2010
 *      Author: green
 */

#ifndef PF_H_
#define PF_H_

#include <limits.h>

typedef unsigned int uint;                              
typedef unsigned char uchar;                    
typedef unsigned long ulong;                    

static const uint PF_PAGE_SIZE = 4096;  

static const uint PF_BUFFER_SIZE = 40;  

static const uint MAX_FILE_NAME = 255;  


static const uint MAX_STRING_LEN = 255; 


enum ReturnCode {
        RC_OK,                                                  
        RC_EOF,                                 
        RC_PAGE_PINNED,                         
        RC_PAGE_NOT_IN_BUFFER,                  
        RC_PAGE_UNPINNED,                       
        RC_PAGE_FREE,                           
        RC_INVALID_PAGE,                        
        RC_FILE_OPEN,                           
        RC_CLOSED_FILE,                         
        RC_FILE_NOT_FOUND,                              
        RC_INVALID_ARGUMENT,                    
        RC_FILE_ALREADY_EXISTS,                 
        RC_PAGE_NOT_FOUND,                              
        RC_PAGE_NOT_DIRTY,                              
        RC_NOT_OPEN_FILE,                               
        RC_RECORD_TOO_LARGE,                    
        RC_RECORD_NOT_FOUND,                    
        RC_RECORD_ALREADY_IN_INDEX,             
        RC_OUT_OF_MEMORY,               
        RC_OUT_OF_BUFFER,               
        RC_INCOMPLETE_READ,                     
        RC_INCOMPLETE_WRITE,                    
        RC_INCOMPLETE_HEADER_READ,      
        RC_INCOMPLETE_HEADER_WRITE,     
        RC_PAGE_IN_BUFFER,                      
        RC_INVALID_NAME,                        
        RC_UNIX,                                
        RC_CORRUPT_FILE,                                
        RC_FILE_TOO_BIG,                                
        RC_UNIMPLEMENTED,                               
};

#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))

#endif /* PF_H_ */

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