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16b0da5004
Implement discarding Document objects to reclaim space. <!-- Please describe your changes on the following line: --> This PR implements document discarding. Active documents are kept alive strongly, but inactive documents are only kept alive weakly. When a document is GCd, it is marked as discarded, and if it is every reactivated, a reload of the URL is triggered. Note that this PR is pretty aggressive about discarding, and can any inactive document (other than those being kept alive by other same-origin pipelines). We might want to damp it down a bit. Also note that this interacts with browser.html in that the reloading triggered by reactivating a document triggers mozbrowser events. To test this, I added a `-Zdiscard-inactive-documents` debug flag, which discards all inactive documents, even ones which are reachable through other same-origin pipelines. --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors - [X] These changes fix #14262. - [X] These changes do not require tests because we should be able to use the existing tests with `-Zdiscard-inactive-documents`. <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> <!-- Reviewable:start --> --- This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/14312) <!-- Reviewable:end --> |
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| .. | ||
| docs | ||
| dom | ||
| task_source | ||
| body.rs | ||
| build.rs | ||
| Cargo.toml | ||
| clipboard_provider.rs | ||
| CMakeLists.txt | ||
| devtools.rs | ||
| document_loader.rs | ||
| fetch.rs | ||
| layout_wrapper.rs | ||
| lib.rs | ||
| mem.rs | ||
| network_listener.rs | ||
| origin.rs | ||
| script_runtime.rs | ||
| script_thread.rs | ||
| serviceworker_manager.rs | ||
| serviceworkerjob.rs | ||
| stylesheet_loader.rs | ||
| test.rs | ||
| textinput.rs | ||
| timers.rs | ||
| unpremultiplytable.rs | ||
| webdriver_handlers.rs | ||
