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| author | Stephan Bergmann <stephan.bergmann@allotropia.de> | 2024-01-23 14:20:51 +0100 |
|---|---|---|
| committer | Stephan Bergmann <stephan.bergmann@allotropia.de> | 2024-01-23 17:33:38 +0100 |
| commit | edf4ad7d9f3f09e5f47993c305451c4fc86359d3 (patch) | |
| tree | 5afe97e66bff5e5ed680d61de8019463951e61cc /external | |
| parent | 8718e362d8bb6fe3ac285ef355fc29d5756e1e92 (diff) | |
MAR update, too big to (not) fail
On Windows, when a MAR update generated by create-partial-info contains very
many patches (as easily happens with LibreOffice), applying it would fail with
"failed: 7" (aka WRITE_ERROR, see
workdir/UnpackedTarball/onlineupdate/onlineupdate/source/update/common/updatererror.h)
because in
workdir/UnpackedTarball/onlineupdate/onlineupdate/source/update/updater/updater.cpp
PatchFile::mPatchStream holds open one FILE instance per patch from
PatchFile::Prepare to PatchFile::Execute (and which can't easily be reworked
because of the Lock/UnlockFile done on the underlying HANDLE "so it can't be
messed with [in] between"), so calling NS_tfopen in PatchFile::Prepare will
eventually start to fail with EMFILE.
To avoid that, try to raise the limit to its maximum (but don't fail immediately
if that fails, in case the given MAR update wouldn't run into the issue of too
many patches, anyway), and keep fingers crossed. (See
<https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/setmaxstdio?view=msvc-170>
"_setmaxstdio" for details: "By default, up to 512 files can be open
simultaneously at the stream I/O level. This level includes files opened and
accessed using the fopen, fgetc, and fputc family of functions. The limit of
512 open files at the stream I/O level can be increased to a maximum of 8,192 by
use of the _setmaxstdio function.")
Change-Id: I6b3499f0f6c2060628418a15f5e36021bfe7dd18
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162442
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de>
Diffstat (limited to 'external')
| -rw-r--r-- | external/onlineupdate/lo.patch | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/external/onlineupdate/lo.patch b/external/onlineupdate/lo.patch index debb7a5b3bbf..35dfb2f80fb8 100644 --- a/external/onlineupdate/lo.patch +++ b/external/onlineupdate/lo.patch @@ -223,6 +223,19 @@ LOG_WARN(("Install directory updater could not be determined.")); result = FALSE; } +--- onlineupdate/source/update/updater/updater.cpp ++++ onlineupdate/source/update/updater/updater.cpp +@@ -4174,6 +4174,10 @@ + NS_tmkdir(gDeleteDirPath, 0755); + } + } ++ ++ if (_setmaxstdio(8192) == -1) { ++ LOG(("_setmaxstdio failed")); ++ } + #endif /* XP_WIN */ + + // Run update process on a background thread. ShowProgressUI may return --- tools/update-packaging/common.sh +++ tools/update-packaging/common.sh @@ -76,17 +76,8 @@ |