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e9e8adf1a8
Use multiple worker processes to distribute the queued entries and call write_pc_item() in parallel for them. The items are distributed uniformly in contiguous chunks. This minimizes the chances of two workers writing to the same directory simultaneously, which could affect performance due to lock contention in the kernel. Work stealing (or any other format of re-distribution) is not implemented yet. The protocol between the main process and the workers is quite simple. They exchange binary messages packed in pkt-line format, and use PKT-FLUSH to mark the end of input (from both sides). The main process starts the communication by sending N pkt-lines, each corresponding to an item that needs to be written. These packets contain all the necessary information to load, smudge, and write the blob associated with each item. Then it waits for the worker to send back N pkt-lines containing the results for each item. The resulting packet must contain: the identification number of the item that it refers to, the status of the operation, and the lstat() data gathered after writing the file (iff the operation was successful). For now, checkout always uses a hardcoded value of 2 workers, only to demonstrate that the parallel checkout framework correctly divides and writes the queued entries. The next patch will add user configurations and define a more reasonable default, based on tests with the said settings. Co-authored-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Co-authored-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
243 lines
3.4 KiB
Text
243 lines
3.4 KiB
Text
/fuzz-commit-graph
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/fuzz_corpora
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/fuzz-pack-headers
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/fuzz-pack-idx
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/GIT-BUILD-OPTIONS
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/GIT-CFLAGS
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/GIT-LDFLAGS
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/GIT-PREFIX
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/GIT-PERL-DEFINES
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/GIT-PERL-HEADER
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/GIT-PYTHON-VARS
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/GIT-SCRIPT-DEFINES
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/GIT-USER-AGENT
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/GIT-VERSION-FILE
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/bin-wrappers/
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/git
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/git-add
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/git-add--interactive
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/git-am
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/git-annotate
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/git-apply
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/git-archimport
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/git-archive
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/git-bisect
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/git-bisect--helper
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/git-blame
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/git-branch
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/git-bugreport
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/git-bundle
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/git-cat-file
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/git-check-attr
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/git-check-ignore
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/git-check-mailmap
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/git-check-ref-format
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/git-checkout
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/git-checkout--worker
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/git-checkout-index
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/git-cherry
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/git-cherry-pick
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/git-clean
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/git-clone
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/git-column
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/git-commit
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/git-commit-graph
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/git-commit-tree
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/git-config
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/git-count-objects
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/git-credential
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/git-credential-cache
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/git-credential-cache--daemon
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/git-credential-store
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/git-cvsexportcommit
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/git-cvsimport
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/git-cvsserver
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/git-daemon
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/git-diff
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/git-diff-files
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/git-diff-index
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/git-diff-tree
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/git-difftool
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/git-difftool--helper
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/git-describe
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/git-env--helper
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/git-fast-export
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/git-fast-import
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/git-fetch
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/git-fetch-pack
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/git-filter-branch
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/git-fmt-merge-msg
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/git-for-each-ref
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/git-for-each-repo
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/git-format-patch
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/git-fsck
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/git-fsck-objects
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/git-gc
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/git-get-tar-commit-id
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/git-grep
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/git-hash-object
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/git-help
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/git-http-backend
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/git-http-fetch
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/git-http-push
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/git-imap-send
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/git-index-pack
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/git-init
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/git-init-db
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/git-interpret-trailers
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/git-instaweb
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/git-log
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/git-ls-files
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/git-ls-remote
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/git-ls-tree
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/git-mailinfo
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/git-mailsplit
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/git-maintenance
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/git-merge
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/git-merge-base
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/git-merge-index
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/git-merge-file
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/git-merge-tree
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/git-merge-octopus
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/git-merge-one-file
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/git-merge-ours
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/git-merge-recursive
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/git-merge-resolve
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/git-merge-subtree
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/git-mergetool
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/git-mergetool--lib
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/git-mktag
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/git-mktree
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/git-multi-pack-index
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/git-mv
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/git-name-rev
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/git-notes
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/git-p4
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/git-pack-redundant
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/git-pack-objects
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/git-pack-refs
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/git-patch-id
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/git-prune
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/git-prune-packed
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/git-pull
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/git-push
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/git-quiltimport
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/git-range-diff
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/git-read-tree
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/git-rebase
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/git-rebase--preserve-merges
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/git-receive-pack
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/git-reflog
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/git-remote
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/git-remote-http
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/git-remote-https
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/git-remote-ftp
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/git-remote-ftps
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/git-remote-fd
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/git-remote-ext
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/git-repack
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/git-replace
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/git-request-pull
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/git-rerere
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/git-reset
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/git-restore
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/git-rev-list
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/git-rev-parse
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/git-revert
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/git-rm
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/git-send-email
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/git-send-pack
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/git-sh-i18n
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/git-sh-i18n--envsubst
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/git-sh-setup
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/git-shell
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/git-shortlog
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/git-show
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/git-show-branch
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/git-show-index
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/git-show-ref
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/git-sparse-checkout
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/git-stage
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/git-stash
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/git-status
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/git-stripspace
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/git-submodule
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/git-submodule--helper
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/git-svn
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/git-switch
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/git-symbolic-ref
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/git-tag
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/git-unpack-file
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/git-unpack-objects
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/git-update-index
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/git-update-ref
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/git-update-server-info
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/git-upload-archive
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/git-upload-pack
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/git-var
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/git-verify-commit
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/git-verify-pack
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/git-verify-tag
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/git-web--browse
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/git-whatchanged
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/git-worktree
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/git-write-tree
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/git-core-*/?*
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/gitweb/GITWEB-BUILD-OPTIONS
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/gitweb/gitweb.cgi
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/gitweb/static/gitweb.js
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/gitweb/static/gitweb.min.*
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/config-list.h
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/command-list.h
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*.tar.gz
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*.dsc
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*.deb
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/git.spec
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*.exe
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*.[aos]
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*.o.json
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*.py[co]
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.depend/
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*.gcda
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*.gcno
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*.gcov
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/coverage-untested-functions
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/cover_db/
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/cover_db_html/
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*+
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/config.mak
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/autom4te.cache
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/config.cache
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/config.log
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/config.status
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/config.mak.autogen
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/config.mak.append
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/configure
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/.vscode/
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/tags
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/TAGS
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/cscope*
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/compile_commands.json
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*.hcc
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*.obj
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*.lib
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*.res
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*.sln
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*.suo
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*.ncb
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*.vcproj
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*.user
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*.idb
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*.pdb
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*.ilk
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*.iobj
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*.ipdb
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*.dll
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.vs/
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Debug/
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Release/
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/UpgradeLog*.htm
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/git.VC.VC.opendb
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/git.VC.db
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*.dSYM
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/contrib/buildsystems/out
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