Devin-Yeung / proglog / 21540041795

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feat: a high-level persistent log api (#1)

* feat(log): impl log initialization

* feat(log): add thread-safe log append

* feat(log): add Read and Close methods with integration test

* apply code review suggestions

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* fix(log): return store append error in segment Append

* feat(log): add lowestoffset and highestoffset accessors

* feat(log): add remove methods for store/index/segment with tests

* fix(log): unmap mmap and close index file on Close

* feat(log): impl segment truncation

* refactor(log): refactor log tests

* fix(log): prevent truncating active segment

* fix: fix TOCTOU race in getting log length

* fix(log): preserve remaining segments when truncating log

* Apply suggestions from code review

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* fix(log): prevent truncating active segment at next offset

* Apply suggestions from code review

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* fix(log): panic if segments list is unexpectedly empty

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Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

115 of 165 new or added lines in 4 files covered. (69.7%)

270 of 528 relevant lines covered (51.14%)

0.55 hits per line