1 //==========================================================================
5 // Fixed memory pool test 2
7 //==========================================================================
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40 //==========================================================================
41 //#####DESCRIPTIONBEGIN####
43 // Author(s): dsm, jlarmour
46 // Description: test allocation and freeing in fixed memory pools
47 //####DESCRIPTIONEND####
49 #include <pkgconf/memalloc.h>
50 #include <pkgconf/system.h>
53 #include <pkgconf/kernel.h>
55 #include <cyg/kernel/sched.hxx> // Cyg_Scheduler::start()
56 #include <cyg/kernel/thread.hxx> // Cyg_Thread
57 #include <cyg/kernel/thread.inl>
58 #include <cyg/kernel/sema.hxx>
60 #include <cyg/kernel/sched.inl>
64 #include "testaux.hxx"
68 #include <cyg/memalloc/memfixed.hxx>
70 #include <cyg/infra/testcase.h>
72 static const cyg_int32 memsize = 1024;
74 static cyg_uint8 mem[memsize];
76 #define NUM_PTRS 16 // Should be even
79 static Cyg_Mempool_Fixed mempool(mem, memsize, BLOCKSIZE);
81 static cyg_uint8 *ptr[NUM_PTRS];
83 // We make a number of passes over a table of pointers which point to
84 // blocks of allocated memory. The block is freed and a new block
85 // allocated. The order of the processing of blocks is varied.
86 static void entry( CYG_ADDRWORD data )
88 for(cyg_ucount32 passes = 0; passes < 10; passes++) {
91 // The order which the table is processed varies according to
93 cyg_ucount8 stepsize = (passes*2 + 1) % NUM_PTRS; // odd
96 for(cyg_ucount8 c=0, i=0; c < NUM_PTRS; c++) {
97 i = (i+stepsize) % NUM_PTRS;
99 for(cyg_ucount32 j=BLOCKSIZE;j--;) {
100 CYG_TEST_CHECK(ptr[i][j]==i, "Memory corrupted");
102 CYG_TEST_CHECK(mempool.free(ptr[i]), "bad free");
104 ptr[i] = mempool.try_alloc();
106 CYG_TEST_CHECK(NULL != ptr[i], "Memory pool not big enough");
107 CYG_TEST_CHECK(mem<=ptr[i] && ptr[i]+BLOCKSIZE < mem+memsize,
108 "Allocated region not within pool");
110 // Scribble over memory to check whether region overlaps
111 // with other regions. The contents of the memory are
112 // checked on freeing. This also tests that the memory
113 // does not overlap with allocator memory structures.
114 for(cyg_ucount32 j=BLOCKSIZE;j--;) {
120 CYG_TEST_PASS_FINISH("Fixed memory pool 2 OK");
124 void memfix2_main( void )
127 CYG_TEST_INFO("Starting Fixed memory pool 2 test");
129 for(cyg_ucount32 i = 0; i<NUM_PTRS; i++) {
134 new_thread(entry, 0);
135 Cyg_Scheduler::start();
140 CYG_TEST_FAIL_FINISH("Not reached");
146 #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
147 cyg_hal_invoke_constructors();