| 1 | module runtime |
| 2 | |
| 3 | fn free_memory_impl() !usize { |
| 4 | $if cross ? { |
| 5 | return error('free_memory: not implemented') |
| 6 | } |
| 7 | $if !cross ? { |
| 8 | $if linux { |
| 9 | page_size := usize(C.sysconf(C._SC_PAGESIZE)) |
| 10 | c_errno_1 := C.errno |
| 11 | if page_size == usize(-1) { |
| 12 | return error('free_memory: `C.sysconf(C._SC_PAGESIZE)` return error code = ${c_errno_1}') |
| 13 | } |
| 14 | av_phys_pages := usize(C.sysconf(C._SC_AVPHYS_PAGES)) |
| 15 | c_errno_2 := C.errno |
| 16 | if av_phys_pages == usize(-1) { |
| 17 | return error('free_memory: `C.sysconf(C._SC_AVPHYS_PAGES)` return error code = ${c_errno_2}') |
| 18 | } |
| 19 | return page_size * av_phys_pages |
| 20 | } |
| 21 | } |
| 22 | return error('free_memory: not implemented') |
| 23 | } |
| 24 | |