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clear out the lower 2 bits of a pid before using it to calculate the hash as they may vary

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svn path=/trunk/; revision=16849
This commit is contained in:
Thomas Bluemel 2005-07-28 23:29:44 +00:00
parent d0f433ab3a
commit a661e95cdf
1 changed files with 3 additions and 3 deletions
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6
reactos/subsys/csrss/api/process.c
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@ -37,7 +37,7 @@ PCSRSS_PROCESS_DATA STDCALL CsrGetProcessData(HANDLE ProcessId)
ULONG hash; ULONG hash;
PCSRSS_PROCESS_DATA pProcessData; PCSRSS_PROCESS_DATA pProcessData;
hash = (ULONG_PTR)ProcessId % (sizeof(ProcessData) / sizeof(*ProcessData)); hash = ((ULONG_PTR)ProcessId & ~0x3) % (sizeof(ProcessData) / sizeof(*ProcessData));
LOCK; LOCK;
@ -59,7 +59,7 @@ PCSRSS_PROCESS_DATA STDCALL CsrCreateProcessData(HANDLE ProcessId)
CLIENT_ID ClientId; CLIENT_ID ClientId;
NTSTATUS Status; NTSTATUS Status;
hash = (ULONG_PTR)ProcessId % (sizeof(ProcessData) / sizeof(*ProcessData)); hash = ((ULONG_PTR)ProcessId & ~0x3) % (sizeof(ProcessData) / sizeof(*ProcessData));
LOCK; LOCK;
@ -121,7 +121,7 @@ NTSTATUS STDCALL CsrFreeProcessData(HANDLE Pid)
UINT c; UINT c;
PCSRSS_PROCESS_DATA pProcessData, pPrevProcessData = NULL; PCSRSS_PROCESS_DATA pProcessData, pPrevProcessData = NULL;
hash = (ULONG_PTR)Pid % (sizeof(ProcessData) / sizeof(*ProcessData)); hash = ((ULONG_PTR)Pid & ~0x3) % (sizeof(ProcessData) / sizeof(*ProcessData));
LOCK; LOCK;