1 | #ifndef MMPAGE_H |
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2 | #define MMPAGE_H |
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3 | |
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4 | #ifdef PAGE_TEST |
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5 | #undef PALLOC |
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6 | #define PALLOC mmPage_Create |
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7 | #undef PFREE |
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8 | #define PFREE mmPage_Delete |
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9 | #endif |
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10 | |
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11 | /*********************************************************************** |
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12 | * |
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13 | * declarations of procedures |
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14 | */ |
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15 | |
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16 | void* mmGetPage(); |
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17 | |
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18 | void mmFreePage(void* page); |
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19 | |
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20 | void mmReleaseFreePages(); |
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21 | |
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22 | extern int mm_bytesValloc; |
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23 | int mmGetNumberOfFreePages(); |
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24 | int mmGetNumberOfUsedPages(); |
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25 | int mmGetNumberOfAllocatedPages(); |
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26 | |
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27 | /*********************************************************************** |
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28 | * |
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29 | * Macros for page manipulations |
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30 | */ |
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31 | |
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32 | #ifdef HAVE_PAGE_ALIGNMENT |
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33 | |
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34 | #define mmIsAddrPageAligned(addr) \ |
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35 | (((long) (addr) & (SIZE_OF_SYSTEM_PAGE -1)) == 0) |
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36 | |
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37 | #define mmGetPageOfAddr(addr) \ |
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38 | ((void*) ((long) (addr) & ~(SIZE_OF_SYSTEM_PAGE -1))) |
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39 | |
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40 | #define mmIsAddrOnPage(addr, page) (mmGetPageOfAddr(addr) == (void*) (page)) |
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41 | |
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42 | #define mmAreAddrOnSamePage(a1, a2) \ |
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43 | (mmGetPageOfAddr(a1) == mmGetPageOfAddr(a2)) |
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44 | |
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45 | int mmIsAddrOnFreePage(void* addr); |
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46 | |
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47 | #define mmIsNotAddrOnFreePage(addr) (!mmIsAddrOnFreePage(addr)) |
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48 | |
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49 | #else /* ! HAVE_PAGE_ALIGNMENT */ |
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50 | |
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51 | #define mmIsAddrPageAligned(addr) 1 |
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52 | |
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53 | #define mmGetPageOfAddr(addr) (addr) |
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54 | |
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55 | #define mmIsAddrOnPage(addr, page) 1 |
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56 | |
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57 | #define mmAreAddrOnSamePage(a1, a2) 1 |
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58 | |
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59 | #define mmIsAddrOnFreePage(addr) 1 |
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60 | |
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61 | #define mmIsNotAddrOnFreePage(addr) 1 |
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62 | #endif |
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63 | |
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64 | |
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65 | #endif /* MMPAGE_H */ |
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