xref: /libuv/test/test-get-memory.c (revision 011a1ac1)
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20  */
21 
22 #include "uv.h"
23 #include "task.h"
24 
TEST_IMPL(get_memory)25 TEST_IMPL(get_memory) {
26   uint64_t free_mem = uv_get_free_memory();
27   uint64_t total_mem = uv_get_total_memory();
28   uint64_t constrained_mem = uv_get_constrained_memory();
29   uint64_t available_mem = uv_get_available_memory();
30 
31   printf("free_mem=%llu, total_mem=%llu, constrained_mem=%llu, "
32          "available_mem=%llu\n",
33          (unsigned long long) free_mem,
34          (unsigned long long) total_mem,
35          (unsigned long long) constrained_mem,
36          (unsigned long long) available_mem);
37 
38   ASSERT_GT(free_mem, 0);
39   ASSERT_GT(total_mem, 0);
40   /* On IBMi PASE, the amount of memory in use is always zero. */
41 #ifdef __PASE__
42   ASSERT_EQ(total_mem, free_mem);
43 #else
44   ASSERT_GT(total_mem, free_mem);
45 #endif
46   ASSERT_LE(available_mem, total_mem);
47   /* we'd really want to test if available <= free, but that is fragile:
48    * with no limit set, get_available calls and returns get_free; so if
49    * any memory was freed between our calls to get_free and get_available
50    * we would fail such a test test (as observed on CI).
51    */
52   return 0;
53 }
54