51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
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#ifndef _AREA_H
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#define _AREA_H
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#include "OS.h"
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#include "vm.h"
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#include "list.h"
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class areaManager;
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class vpage;
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class area : public node
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{
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protected:
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list vpages;
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char name[B_OS_NAME_LENGTH];
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pageState state;
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protectType protection;
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int areaID;
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int in_count;
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int out_count;
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int copy_count;
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areaManager *manager;
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unsigned long start_address;
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unsigned long end_address;
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vpage *findVPage(unsigned long);
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public:
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area(areaManager *myManager);
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bool nameMatch(char *matchName) {return (strcmp(matchName,name)==0);}
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unsigned long mapAddressSpecToAddress(addressSpec type,unsigned long requested,int pageCount);
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status_t createAreaMappingFile(char *name, int pageCount,void **address, addressSpec type,pageState state,protectType protect,int fd,size_t offset);
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status_t createArea (char *name, int pageCount,void **address, addressSpec type,pageState state,protectType protect);
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int getAreaID(void) {return areaID;}
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void setAreaID(int id) {areaID=id;}
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void freeArea(void);
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status_t getInfo(area_info *dest);
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bool contains(void *address);
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status_t resize(size_t newSize);
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status_t setProtection(protectType prot);
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bool couldAdd(unsigned long start,unsigned long end) { return ((end<start_address) || (start>end_address));}
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unsigned long getEndAddress(void) {return end_address;}
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void pager(int desperation);
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void saver(void);
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bool fault(void *fault_address, bool writeError); // true = OK, false = panic.
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char getByte(unsigned long ); // This is for testing only
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void setByte(unsigned long ,char value); // This is for testing only
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int getInt(unsigned long ); // This is for testing only
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void setInt(unsigned long ,int value); // This is for testing only
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};
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#endif
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