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MaxsTechReview
9f7f6d821d
* perf(epic): keep the hidden launcher from loading its store and Fab pages, and compress it while games run The hidden Epic Games Launcher that stays up for sign-in while a game runs pre-warmed its store and Fab pages on a display nobody sees. Under FEX each page used about one core and grew past a gigabyte, crashing and reloading in a loop. The hidden instance now skips the store pre-warm, gets a blank page in place of Fab, and is paged out to zRAM with the Steam client once a game has focus. The visible launcher is unchanged. * test(zram): keep the scan fixture PIDs above the kernel PID range
75 lines
2.7 KiB
Python
75 lines
2.7 KiB
Python
import os
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import platform
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import shutil
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import subprocess
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import tempfile
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import unittest
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[2]
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SOURCE = ROOT / "tools/linuxfs/fex/webkitinput.c"
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WEBKIT = r"""
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#include <stdio.h>
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#include <stdlib.h>
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const char *g_getenv(const char *name) { return getenv(name); }
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void webkit_web_view_load_uri(void *view, const char *uri) { (void)view; printf("%s\n", uri); }
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"""
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LOADER = r"""
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void webkit_web_view_load_uri(void *view, const char *uri);
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int main(int argc, char **argv) {
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for (int i = 1; i < argc; i++) webkit_web_view_load_uri(0, argv[i]);
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return 0;
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}
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"""
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URIS = [
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"https://www.fab.com",
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"https://fab.com/listings/1",
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"http://www.fab.com?x=1",
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"https://www.fab.com:443/",
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"https://store.epicgames.com/en-US/",
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"https://www.fab.community/",
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"https://notfab.com/",
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"tauri://localhost",
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]
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@unittest.skipUnless(platform.machine() == "x86_64" and shutil.which("gcc"), "webkitinput is built for x86_64 guests")
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class WebKitInputTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.tmp = Path(tempfile.mkdtemp())
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(cls.tmp / "webkit.c").write_text(WEBKIT)
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(cls.tmp / "loader.c").write_text(LOADER)
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subprocess.run(["gcc", "-m64", "-shared", "-fPIC", "-O2", "-Wall", "-Wextra", "-nostdlib", "-fno-stack-protector",
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"-fno-builtin", "-fvisibility=hidden", "-o", str(cls.tmp / "libwebkitinput.so"), str(SOURCE)], check=True)
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subprocess.run(["gcc", "-shared", "-fPIC", "-o", str(cls.tmp / "libfakewebkit.so"), str(cls.tmp / "webkit.c")], check=True)
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subprocess.run(["gcc", "-o", str(cls.tmp / "loader"), str(cls.tmp / "loader.c"), "-L" + str(cls.tmp),
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"-Wl,--no-as-needed", "-lwebkitinput", "-lfakewebkit", "-ldl", "-Wl,-rpath," + str(cls.tmp)], check=True)
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@classmethod
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def tearDownClass(cls):
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shutil.rmtree(cls.tmp, ignore_errors=True)
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def load(self, hidden):
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env = {k: v for k, v in os.environ.items() if k != "DROIDDECK_EPIC_HIDDEN"}
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if hidden is not None:
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env["DROIDDECK_EPIC_HIDDEN"] = hidden
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result = subprocess.run([str(self.tmp / "loader")] + URIS, env=env, capture_output=True, text=True, timeout=10)
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self.assertEqual(0, result.returncode, result.stderr)
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return result.stdout.splitlines()
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def test_the_hidden_launcher_loads_a_blank_page_for_fab(self):
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self.assertEqual(["about:blank"] * 4 + URIS[4:], self.load("1"))
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def test_the_visible_launcher_loads_every_page(self):
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self.assertEqual(URIS, self.load(None))
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self.assertEqual(URIS, self.load("0"))
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self.assertEqual(URIS, self.load("10"))
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if __name__ == "__main__":
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unittest.main()
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