57b5e43d0e
Five bugs identified and patched in retail Asheron's Call client: - v3b: palette refcount over-increment (3-byte NOP at two sites) - v5: RenderSurface PurgeResource no-op stub (vtable slot 2 thunk) - v11: two dangling-pointer crash guards (NULL-check + reorder) - v14: CEnvCell::Destroy ClipPlaneList leak (18-byte JMP to cleanup thunk) - v22: unpacker stale-pointer SEH guard (whole-function __try/__except) All five ship in leakfix.dll (117 KB, SHA d282f23c…) which is loaded by acclient.exe at process start via PE import table patching by tools/install_leakfix.py. Controlled 15-client fleet soak: unpatched control died at 26h with palette exhaustion; all 14 patched clients survived past that point and reached ≥5-day uptime. Residual ~15 MB/h growth traced to d3d9.dll's internal slab allocator (260KB surface backing buffers retained after Release). See REPORT.md §10 for the full investigation; conclusion is that it's unfixable from outside d3d9. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
15 lines
576 B
C
15 lines
576 B
C
// thunks.h — replacement functions called by patched code paths
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#pragma once
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extern "C" {
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// v5 replacement vtable slot 2 functions. __thiscall so vtable call ABI matches.
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int __fastcall purge_rendersurface_thunk(void* self, void* /*edx_unused*/);
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int __fastcall purge_rendertexture_thunk(void* self, void* /*edx_unused*/);
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// v14 — naked thunk JMPed to from 0x0052E661.
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// Saves regs, frees inner ClipPlaneList, frees outer wrapper, clears the
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// back-pointer at [esi+0xDC], restores regs, jumps to V14_RESUME_VA.
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void v14_clipplane_cleanup_thunk();
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} // extern "C"
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