test: tmovmem.c File Reference

00057 { 00058 ULONG ErrorCount; 00059 ULONG Length; 00060 ULONG Offset; 00061 LONG Overlap; 00062 ULONG Result; 00063 ULONG Source; 00064 ULONG Target; 00065 ULONG TestCases; 00066 00067 fprintf(stderr, "Testing RtlMoveMemory\n"); 00068 ErrorCount = 0; 00069 TestCases = 0; 00070 00071 // 00072 // Make a call to RtlMoveMemory for all possible source string offsets 00073 // within a cache line, for a large set of string lengths, and a wide 00074 // range of positions of the target string relative to the source string, 00075 // including all possible overlapping string configurations. 00076 // 00077 00078 for (Offset = 0; Offset <= MAX_OFFSET; Offset += 1) { 00079 for (Length = 0; Length <= MAX_LENGTH; Length += 1) { 00080 for (Overlap = MIN_OVERLAP; Overlap <= MAX_OVERLAP; Overlap += 1) { 00081 00082 // 00083 // The same string configuration is made in two different 00084 // buffers. RtlMoveMemory is used on the two strings in one 00085 // buffer and the trusted LocalMoveMemory on the two strings 00086 // in the other buffer. The entire buffers are compared to 00087 // determine if the two move functions agree. 00088 // 00089 00090 FillPattern(Buffer1, BUFFER_SIZE); 00091 FillPattern(Buffer2, BUFFER_SIZE); 00092 00093 Source = MAX_MARGIN + MAX_LENGTH + MAX_MARGIN + Offset; 00094 Target = Source + Overlap; 00095 00096 LocalMoveMemory(&Buffer1[Target], &Buffer1[Source], Length); 00097 RtlMoveMemory(&Buffer2[Target], &Buffer2[Source], Length); 00098 00099 Result = LocalCompareMemory(Buffer1, Buffer2, BUFFER_SIZE); 00100 00101 TestCases += 1; 00102 if (Result != BUFFER_SIZE) { 00103 ErrorCount += 1; 00104 00105 printf("ERROR: Offset = %d, Length = %d, Overlap = %d\n", 00106 Offset, Length, Overlap); 00107 printf("RtlMoveMemory( &Buffer[ %d ], &Buffer[ %d ], %d )\n", 00108 Target, Source, Length); 00109 00110 FillPattern(Buffer0, BUFFER_SIZE); 00111 printf(" Original Source = %lx: <%.*s>\n", 00112 &Buffer0[Source], Length, &Buffer0[Source]); 00113 printf(" Expected Target = %lx: <%.*s>\n", 00114 &Buffer1[Target], Length, &Buffer1[Target]); 00115 printf(" Actual Target = %lx: <%.*s>\n", 00116 &Buffer2[Target], Length, &Buffer2[Target]); 00117 printf("\n"); 00118 printf("Buffers differ starting at byte %d:\n", Result); 00119 printf("Buffer1 = <%*s>\n", BUFFER_SIZE, Buffer1); 00120 printf("Buffer2 = <%*s>\n", BUFFER_SIZE, Buffer2); 00121 printf("\n"); 00122 } 00123 } 00124 } 00125 } 00126 00127 fprintf(stderr, "Test of RtlMoveMemory completed: "); 00128 fprintf(stderr, "%d test cases, %d errors found.\n", TestCases, ErrorCount); 00129 }


Defines
#define	MIN_OVERLAP (-(MAX_LENGTH + MAX_MARGIN))
#define	MAX_OVERLAP (MAX_LENGTH + MAX_MARGIN - 1)
#define	BUFFER_SIZE (MAX_MARGIN + MAX_LENGTH + MAX_MARGIN + MAX_OFFSET + MAX_LENGTH + MAX_MARGIN + MAX_LENGTH + MAX_MARGIN)
Functions
void __cdecl	main ()
Variables
UCHAR	Buffer0 [BUFFER_SIZE]
UCHAR	Buffer1 [BUFFER_SIZE]
UCHAR	Buffer2 [BUFFER_SIZE]

tmovmem.c File Reference

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Functions

Variables

Define Documentation

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Variable Documentation