diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000000000000000000000000000000000000..5f8df3c8c9e8490845248e33e3a7cdf1e20c89a7
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,5 @@
+---
+BasedOnStyle: Google
+ColumnLimit: 100
+TabWidth: 2
+UseTab: Always
diff --git a/.clang-tidy b/.clang-tidy
new file mode 100644
index 0000000000000000000000000000000000000000..b914e66b2dbd60a60b3c86493b0f09439fe15064
--- /dev/null
+++ b/.clang-tidy
@@ -0,0 +1,24 @@
+Checks: >
+ bugprone-*,
+ cert-*,
+ linuxkernel-*,
+ modernize-*,
+ performance-*,
+ portability-*,
+ readability-*,
+ -cert-err58-cpp,
+ -clang-diagnostic-empty-translation-unit,
+ -readability-braces-around-statements,
+ -readability-function-cognitive-complexity,
+ -readability-implicit-bool-conversion,
+ -readability-isolate-declaration,
+ -readability-magic-numbers,
+
+WarningsAsErrors: >
+ bugprone-*,
+ modernize-*,
+ clang-*,
+ readability-*,
+ performance-*,
+
+HeaderFilterRegex: .*
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 550e2f028887b50da3420a13f510a83ab8e77eef..ccdc51fa7973be5d916e8f65d867a3610a2f3ad7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -14,3 +14,11 @@ before_script:
test-eval:
script:
- make
+
+tidy:
+ script:
+ - make tidy
+
+check-format:
+ script:
+ - make check-format
diff --git a/Makefile b/Makefile
index 139ebf00e484c843e211e95e898ee29cffc8b82b..addbf9445e244ca1deb5c54b75b009f50c620f94 100644
--- a/Makefile
+++ b/Makefile
@@ -27,3 +27,12 @@ $(foreach syscall,$(SYSCALLS),$(eval $(call generateTargets,$(syscall))))
clean:
rm -f $(OBJ)
+
+tidy:
+ clang-tidy *.c
+
+check-format:
+ tools/check-format
+
+format:
+ clang-format -i *.c *.h
diff --git a/compile_commands.json b/compile_commands.json
new file mode 100644
index 0000000000000000000000000000000000000000..ca4b9445b8031c904cc4f7e8919d89ce602696d2
--- /dev/null
+++ b/compile_commands.json
@@ -0,0 +1,359 @@
+[
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-blocking",
+ "blocking.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/blocking.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-blocking"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-blocking",
+ "bench.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/bench.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-blocking"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-blocking",
+ "stopwatch.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/stopwatch.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-blocking"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring",
+ "io-uring.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/io-uring.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring",
+ "bench.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/bench.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring",
+ "stopwatch.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/stopwatch.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring-sqpoll",
+ "io-uring-sqpoll.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/io-uring-sqpoll.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring-sqpoll"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring-sqpoll",
+ "bench.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/bench.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring-sqpoll"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring-sqpoll",
+ "stopwatch.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/stopwatch.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring-sqpoll"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring-no-syscall",
+ "io-uring-no-syscall.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/io-uring-no-syscall.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring-no-syscall"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring-no-syscall",
+ "bench.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/bench.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring-no-syscall"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-io-uring-no-syscall",
+ "stopwatch.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/stopwatch.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-io-uring-no-syscall"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-epoll",
+ "epoll.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/epoll.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-epoll"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-epoll",
+ "bench.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/bench.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-epoll"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-epoll",
+ "stopwatch.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/stopwatch.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-epoll"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-aio-sig",
+ "aio-sig.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/aio-sig.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-aio-sig"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-aio-sig",
+ "bench.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/bench.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-aio-sig"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-aio-sig",
+ "stopwatch.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/stopwatch.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-aio-sig"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-aio-thrd",
+ "aio-thrd.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/aio-thrd.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-aio-thrd"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-aio-thrd",
+ "bench.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/bench.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-aio-thrd"
+ },
+ {
+ "arguments": [
+ "/sbin/cc",
+ "-c",
+ "-Werror",
+ "-Wall",
+ "-g",
+ "-O0",
+ "-pthread",
+ "-o",
+ "bench-aio-thrd",
+ "stopwatch.c"
+ ],
+ "directory": "/home/muhq/code/fgbs-syscall-eval",
+ "file": "/home/muhq/code/fgbs-syscall-eval/stopwatch.c",
+ "output": "/home/muhq/code/fgbs-syscall-eval/bench-aio-thrd"
+ }
+]
diff --git a/tools/check-format b/tools/check-format
new file mode 100755
index 0000000000000000000000000000000000000000..005c77c1ecfef05fc891dbb6ffc2d3c90a2a6912
--- /dev/null
+++ b/tools/check-format
@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Pretty fancy method to get reliable the absolute path of a shell
+# script, *even if it is sourced*. Credits go to GreenFox on
+# stackoverflow: http://stackoverflow.com/a/12197518/194894
+pushd . > /dev/null
+SCRIPTDIR="${BASH_SOURCE[0]}";
+while([ -h "${SCRIPTDIR}" ]); do
+ cd "`dirname "${SCRIPTDIR}"`"
+ SCRIPTDIR="$(readlink "`basename "${SCRIPTDIR}"`")";
+done
+cd "`dirname "${SCRIPTDIR}"`" > /dev/null
+SCRIPTDIR="`pwd`";
+popd > /dev/null
+
+DEBUG=false
+while getopts d OPT; do
+ case $OPT in
+ d)
+ set -x
+ DEBUG=true
+ ;;
+ *)
+ echo "usage: ${0##*/} [-dq} [--] ARGS..."
+ exit 2
+ esac
+done
+shift $(( OPTIND - 1 ))
+OPTIND=1
+
+ROOTDIR=$(readlink -f "${SCRIPTDIR}/..")
+
+MAX_PROCS=$(nproc)
+
+CHECKED_FILES_FILE=$(mktemp)
+if ! $DEBUG; then
+ trap 'rm "${CHECKED_FILES_FILE}"' EXIT
+fi
+
+cd "${ROOTDIR}"
+# Note that the --dry-run and --Werror clang-format arguments require
+# clang-format 10 or higher. See https://reviews.llvm.org/D68554
+find . \( -path '*/\.*' -o -path "./subprojects*" -o -path "./build*" \) -prune -o \
+ -type f -regextype posix-extended -regex '.*\.(c|h|cpp|hpp)' -print0 |\
+ tee "${CHECKED_FILES_FILE}" |\
+ xargs --null --max-args=3 --max-procs="${MAX_PROCS}" \
+ clang-format --style=file --dry-run -Werror
+
+FILE_COUNT=$(<"${CHECKED_FILES_FILE}" tr -cd '\0' | wc -c)
+echo "Checked ${FILE_COUNT} files for format violations"