[haiku-commits] r35425 - haiku/trunk/src/tests/system/libroot/posix
- From: mmlr@xxxxxxxx
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Sun, 7 Feb 2010 03:11:31 +0100 (CET)
Author: mmlr
Date: 2010-02-07 03:11:31 +0100 (Sun, 07 Feb 2010)
New Revision: 35425
Changeset: http://dev.haiku-os.org/changeset/35425/haiku
Added:
haiku/trunk/src/tests/system/libroot/posix/memalign_test.cpp
Modified:
haiku/trunk/src/tests/system/libroot/posix/Jamfile
Log:
Add a memalign test that checks for valid alignments and fills/verifies
allocated buffers to validate that the full allocated size is actually usable.
Modified: haiku/trunk/src/tests/system/libroot/posix/Jamfile
===================================================================
--- haiku/trunk/src/tests/system/libroot/posix/Jamfile 2010-02-07 02:02:13 UTC
(rev 35424)
+++ haiku/trunk/src/tests/system/libroot/posix/Jamfile 2010-02-07 02:11:31 UTC
(rev 35425)
@@ -22,6 +22,10 @@
: flock_test.cpp
;
+SimpleTest memalign_test
+ : memalign_test.cpp
+;
+
SimpleTest mprotect_test
: mprotect_test.cpp
;
Added: haiku/trunk/src/tests/system/libroot/posix/memalign_test.cpp
===================================================================
--- haiku/trunk/src/tests/system/libroot/posix/memalign_test.cpp
(rev 0)
+++ haiku/trunk/src/tests/system/libroot/posix/memalign_test.cpp
2010-02-07 02:11:31 UTC (rev 35425)
@@ -0,0 +1,125 @@
+#include <SupportDefs.h>
+#include <OS.h>
+
+#include <malloc.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+
+#ifdef MALLOC_DEBUG
+void dump_heap_list(int argc, char **argv);
+void dump_allocations(bool statsOnly, thread_id thread);
+#endif
+
+
+inline uint8
+sum(addr_t address)
+{
+ return (address >> 24) | (address >> 16) | (address >> 8) | address;
+}
+
+
+inline void
+write_test_pattern(void *address, size_t size)
+{
+ for (size_t i = 0; i < size; i++)
+ *((uint8 *)address + i) = sum((addr_t)address + i);
+}
+
+
+inline void
+verify_test_pattern(void *address, size_t size)
+{
+ for (size_t i = 0; i < size; i++) {
+ if (*((uint8 *)address + i) != sum((addr_t)address + i)) {
+ printf("test patern invalid at %p: %u vs. %u\n",
+ (uint8 *)address + i, *((uint8 *)address + i),
+ sum((addr_t)address + i));
+ exit(1);
+ }
+ }
+}
+
+
+void
+allocate_random_no_alignment(int32 count, size_t maxSize)
+{
+ void **allocations = new void *[count];
+ size_t *sizes = new size_t[count];
+ for (int32 i = 0; i < count; i++) {
+ sizes[i] = rand() % maxSize;
+ allocations[i] = malloc(sizes[i]);
+ if (allocations[i] == NULL) {
+ printf("allocation of %lu bytes failed\n", sizes[i]);
+ exit(1);
+ }
+
+ write_test_pattern(allocations[i], sizes[i]);
+ }
+
+ for (int32 i = count - 1; i >= 0; i--) {
+ verify_test_pattern(allocations[i], sizes[i]);
+ free(allocations[i]);
+ }
+
+ delete[] allocations;
+ delete[] sizes;
+}
+
+
+void
+allocate_random_fixed_alignment(int32 count, size_t maxSize, size_t alignment)
+{
+ void **allocations = new void *[count];
+ size_t *sizes = new size_t[count];
+ for (int32 i = 0; i < count; i++) {
+ sizes[i] = rand() % maxSize;
+ allocations[i] = memalign(alignment, sizes[i]);
+ if (allocations[i] == NULL) {
+ printf("allocation of %lu bytes failed\n", sizes[i]);
+ exit(1);
+ }
+
+ if ((addr_t)allocations[i] % alignment != 0) {
+ printf("allocation of %lu bytes misaligned: %p ->
0x%08lx "
+ " with alignment %lu (0x%08lx)\n", sizes[i],
+ allocations[i], (addr_t)allocations[i] %
alignment, alignment,
+ alignment);
+ exit(1);
+ }
+
+ write_test_pattern(allocations[i], sizes[i]);
+ }
+
+ for (int32 i = count - 1; i >= 0; i--) {
+ verify_test_pattern(allocations[i], sizes[i]);
+ free(allocations[i]);
+ }
+
+ delete[] allocations;
+ delete[] sizes;
+}
+
+
+void
+allocate_random_random_alignment(int32 count, size_t maxSize)
+{
+ for (int32 i = 0; i < count / 128; i++)
+ allocate_random_fixed_alignment(128, maxSize, 1 << (rand() %
18));
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ allocate_random_no_alignment(1024, B_PAGE_SIZE * 128);
+ allocate_random_random_alignment(1024, B_PAGE_SIZE * 128);
+
+#ifdef MALLOC_DEBUG
+ dump_heap_list(0, NULL);
+ dump_allocations(false, -1);
+#endif
+
+ printf("tests succeeded\n");
+ return 0;
+}
Other related posts:
- » [haiku-commits] r35425 - haiku/trunk/src/tests/system/libroot/posix - mmlr
