As there are no extended file attributes available on all Windows file
systems (NTFS supports alternate data streams, but Chrome still supports
running on FAT), instead of using metadata attached to the file, metadata
is stored separately in a simple record-based file and keyed by UUID.
Initially, I attempted a metadata file beside each report, each locked
separately more closely mirroring the Mac implementation. But given the
expected number of of active reports (in the 10s to 100s range?) and the
size of the metadata for each, simply storing it all in one file is much
less complicated when considering error situations.
If the serialization/deserialization becomes a measurable problem, it
could be optimized at some complexity by reading/writing only as
necessary, or optimizing the storage.
R=mark@chromium.org, rsesek@chromium.org
BUG=crashpad:1
Review URL: https://codereview.chromium.org/867363003
A crash handler needs a way to clean up after itself it it calls
CrashReportDatabase::PrepareCrashReport() to begin writing a new crash
report, but then encounters an error that renders the crash report
unusable. The new ErrorWritingCrashReport() method allows it to
communicate to the database that a previously-prepared crash report
should be removed without ever being promoted to a completed report
pending upload.
TEST=client_test CrashReportDatabaseTest.ErrorWritingCrashReport
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/904533002
- Dependency on compat required for sys/types.h inclusion for ssize_t.
- Test impl of stat to avoid #error
- FileHandle isn't int on Windows.
client_test no longer links though, as it's still lacking an
implementation of CrashReportDatabase of course.
R=rsesek@chromium.org
BUG=crashpad:1
Review URL: https://codereview.chromium.org/875043004
