[so] [Tema5] WriteRead

[Dragan Stefan]

In testul pentru scriere si apoi citire vad se asteapta 2 page fault-uri la
scriere. Nu inteleg de ce? Eu am facut ca la citire sa setez PAGE_READONLY
si la scriere PAGE_READWRITE intr-un singur PF si a mers bine pana am rulat
testul :P.

 

static void WriteRead (DWORD pageId, int expected, DWORD pageOffset)

{

      DWORD memoryValue;

      int expectedHandlerVar;

 

      /* write - two faults */

      gpfHandlerVar = 0;

      expectedHandlerVar = (expected == PAGE_FAULT) ? 2 : 0;

      memoryValue = pageId << 16 | pageOffset;

      * (PDWORD) ((PBYTE) baseAddress + pageId * pageSize + pageOffset) =
memoryValue;

      if (expected != NO_CHECK)

            test ("Access_", gpfHandlerVar == expectedHandlerVar);

 

      /* read - no faults */

      gpfHandlerVar = 0;

      expectedHandlerVar = 0;

      memoryValue = * (PDWORD) ((PBYTE) baseAddress + pageId * pageSize +
pageOffset);

      if (expected != NO_CHECK)

            test ("Access", gpfHandlerVar == expectedHandlerVar);

} 

 

Dragan Stefan

0723060629

http://ph0enix1810.lx.ro <http://ph0enix1810.lx.ro/> 

Desteapta-te romane!

Salveaza capra vecinului!

 

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