| 1 | import runtime |
| 2 | |
| 3 | fn test_used_memory() { |
| 4 | used1 := runtime.used_memory()! |
| 5 | println('used memory 1 : ${used1}') |
| 6 | |
| 7 | mut mem1 := unsafe { malloc(8 * 1024 * 1024) } |
| 8 | unsafe { vmemset(mem1, 1, 8 * 1024 * 1024) } |
| 9 | used2 := runtime.used_memory()! |
| 10 | println('used memory 2 : ${used2}') |
| 11 | |
| 12 | mut mem2 := unsafe { malloc(64 * 1024 * 1024) } |
| 13 | unsafe { vmemset(mem2, 1, 64 * 1024 * 1024) } |
| 14 | used3 := runtime.used_memory()! |
| 15 | println('used memory 3 : ${used3}') |
| 16 | |
| 17 | assert used1 > 0 |
| 18 | assert used2 >= used1 |
| 19 | assert used3 > used2 |
| 20 | unsafe { |
| 21 | println(*&u8(mem1 + 1024)) |
| 22 | println(*&u8(mem2 + 1024)) |
| 23 | } |
| 24 | } |
| 25 | |