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It's now possible to get purgeable memory by using mmap(MAP_PURGEABLE). Purgeable memory has a "volatile" flag that can be set using madvise(): - madvise(..., MADV_SET_VOLATILE) - madvise(..., MADV_SET_NONVOLATILE) When in the "volatile" state, the kernel may take away the underlying physical memory pages at any time, without notifying the owner. This gives you a guilt discount when caching very large things. :^) Setting a purgeable region to non-volatile will return whether or not the memory has been taken away by the kernel while being volatile. Basically, if madvise(..., MADV_SET_NONVOLATILE) returns 1, that means the memory was purged while volatile, and whatever was in that piece of memory needs to be reconstructed before use. |
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| LibAudio | ||
| LibC | ||
| LibCore | ||
| LibDraw | ||
| LibELF | ||
| LibGUI | ||
| LibHTML | ||
| LibIPC | ||
| LibM | ||
| LibMarkdown | ||
| LibPCIDB | ||
| LibProtocol | ||
| LibPthread | ||
| LibThread | ||
| LibVT | ||