new alloc counter tests

IntegrationTests/allocation-counter-tests-framework/run-allocation-counter.sh

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+#!/bin/bash
+##===----------------------------------------------------------------------===##
+##
+## This source file is part of the SwiftNIO open source project
+##
+## Copyright (c) 2019 Apple Inc. and the SwiftNIO project authors
+## Licensed under Apache License v2.0
+##
+## See LICENSE.txt for license information
+## See CONTRIBUTORS.txt for the list of SwiftNIO project authors
+##
+## SPDX-License-Identifier: Apache-2.0
+##
+##===----------------------------------------------------------------------===##
+
+set -eu
+here="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+build_opts=( -c release )
+
+function die() {
+    echo >&2 "ERROR: $*"
+    exit 1
+}
+
+function make_git_commit_all() {
+    git init > /dev/null
+    git config --local user.email does@really-not.matter
+    git config --local user.name 'Does Not Matter'
+    git add . > /dev/null
+    git commit -m 'everything' > /dev/null
+}
+
+# <swiftpm_pkg_name> <targets...>
+function hooked_package_swift_start() {
+    local swiftpm_pkg_name=$1
+    shift
+
+    cat <<"EOF"
+// swift-tools-version:5.0
+import PackageDescription
+
+let package = Package(
+    name: "allocation-counter-tests",
+    products: [
+EOF
+    for f in "$@"; do
+        local module=$(module_name_from_path "$f")
+        echo ".executable(name: \"$module\", targets: [\"bootstrap_$module\"]),"
+    done
+    cat <<EOF
+    ],
+    dependencies: [
+        .package(url: "HookedFunctions/", .branch("master")),
+        .package(url: "$swiftpm_pkg_name/", .branch("master")),
+    ],
+    targets: [
+EOF
+}
+
+# <target_name> <deps...>
+function hooked_package_swift_target() {
+    local target_name="$1"
+    shift
+    local deps=""
+    for dep in "$@"; do
+        deps="$deps \"$dep\","
+    done
+    cat <<EOF
+            .target(name: "Test_$target_name", dependencies: [$deps]),
+            .target(name: "bootstrap_$target_name",
+                    dependencies: ["Test_$target_name", "HookedFunctions"]),
+EOF
+}
+
+function hooked_package_swift_end() {
+    cat <<"EOF"
+    ]
+)
+EOF
+}
+
+function abs_path() {
+    if [[ "${1:0:1}" == "/" ]]; then
+        echo "$1"
+    else
+        echo "$PWD/$1"
+    fi
+}
+
+function dir_basename() {
+    test -d "$1"
+    basename "$(cd "$1" && pwd)"
+}
+
+function fake_package_swift() {
+    cat > Package.swift <<EOF
+// swift-tools-version:4.0
+import PackageDescription
+
+let package = Package(name: "$1")
+EOF
+}
+
+# <target> <template> <swiftpm_pkg_root> <swiftpm_pkg_name> <hooked_function_module> <bootstrap_module> <shared file> <test_files...>
+function build_package() {
+    local target=$1
+    local template=$2
+    local swiftpm_pkg_root=$3
+    local swiftpm_pkg_name=$4
+    local hooked_function_module=$5
+    local bootstrap_module=$6
+    local shared_file=$7
+    shift 7
+
+    test -d "$target" || die "target dir '$target' not a directory"
+    test -d "$template" || die "template dir '$template' not a directory"
+    test -d "$swiftpm_pkg_root" || die "root dir '$swiftpm_pkg_root' not a directory"
+    test -n "$hooked_function_module" || die "hooked function module empty"
+    test -n "$bootstrap_module" || die "bootstrap module empty"
+
+    cp -R "$template"/* "$target/"
+    mv "$target/$hooked_function_module" "$target/HookedFunctions"
+    mv "$target/Sources/$bootstrap_module" "$target/Sources/bootstrap"
+
+    (
+    set -eu
+
+    cd "$target"
+
+    cd HookedFunctions
+    make_git_commit_all
+    cd ..
+
+    cd AtomicCounter
+    make_git_commit_all
+    cd ..
+
+    mkdir "$swiftpm_pkg_name"
+    cd "$swiftpm_pkg_name"
+    fake_package_swift "$swiftpm_pkg_name"
+    make_git_commit_all
+    cd ..
+
+    hooked_package_swift_start "$swiftpm_pkg_name" "$@" > Package.swift
+    for f in "$@"; do
+        local module=$(module_name_from_path "$f")
+        hooked_package_swift_target "$module" NIO NIOHTTP1 >> Package.swift
+        mkdir "Sources/bootstrap_$module"
+        ln -s "../bootstrap/main.c" "Sources/bootstrap_$module"
+        mkdir "Sources/Test_$module"
+        cat > "Sources/Test_$module/trampoline.swift" <<EOF
+        @_cdecl("swift_main")
+        func swift_main() {
+            run(identifier: "$module")
+        }
+EOF
+        ln -s "$f" "Sources/Test_$module/file.swift"
+        ln -s "../../scaffolding.swift" "Sources/Test_$module/"
+        if [[ -n "$shared_file" ]]; then
+            ln -s "$shared_file" "Sources/Test_$module/shared.swift"
+        fi
+    done
+    hooked_package_swift_end >> Package.swift
+
+    swift package edit --path "$swiftpm_pkg_root" "$swiftpm_pkg_name"
+    )
+}
+
+function module_name_from_path() {
+    basename "${1%.*}" | tr ". " "__"
+}
+
+# <pkg_root>
+function find_swiftpm_package_name() {
+    (
+    set -eu
+    cd "$1"
+    swift package dump-package | grep '^  "name"' | cut -d'"' -f4
+    )
+}
+
+do_hooking=true
+pkg_root="$here/.."
+shared_file=""
+modules=()
+
+while getopts "ns:p:m:" opt; do
+    case "$opt" in
+        n)
+            do_hooking=false
+            ;;
+        s)
+            shared_file="$OPTARG"
+            ;;
+        p)
+            pkg_root=$(abs_path "$OPTARG")
+            ;;
+        m)
+            modules+=( "$OPTIND" )
+            ;;
+        \?)
+            die "unknown option $opt"
+            ;;
+    esac
+done
+
+shift $(( OPTIND - 1 ))
+if [[ $# -lt 1 ]]; then
+    die "not enough files provided"
+fi
+
+if [[ "${#modules}" == 0 ]]; then
+    die "no modules specified, use '-m <MODULE>' for every module you plan to use"
+fi
+
+if [[ ! -f "$pkg_root/Package.swift" ]]; then
+    die "package root '$pkg_root' doesn't contain a Package.swift file, use -p"
+fi
+
+files=()
+for f in "$@"; do
+    files+=( "$(abs_path "$f")" )
+done
+
+if [[ -n "$shared_file" ]]; then
+    shared_file=$(abs_path "$shared_file")
+fi
+
+test -d "$pkg_root" || die "package root '$pkg_root' not a directory"
+for f in "${files[@]}"; do
+    test -f "$f" || die "file '$f' not a file"
+done
+
+tmpdir=$(mktemp -d /tmp/thing_XXXXXX)
+
+selected_hooked_functions="HookedFunctionsDoHook"
+selected_bootstrap="bootstrapDoHook"
+
+if ! $do_hooking; then
+    selected_hooked_functions=HookedFunctionsDoNotHook
+    selected_bootstrap=bootstrapDoNotHook
+fi
+
+build_package \
+    "$tmpdir" \
+    "$here/template" \
+    "$pkg_root" \
+    "$(find_swiftpm_package_name "$pkg_root")" \
+    "$selected_hooked_functions" \
+    "$selected_bootstrap" \
+    "$shared_file" \
+    "${files[@]}"
+(
+cd "$tmpdir"
+swift build "${build_opts[@]}"
+for f in "${files[@]}"; do
+    echo "- $f"
+    swift run "${build_opts[@]}" "$(module_name_from_path "$f")"
+done
+)

IntegrationTests/allocation-counter-tests-framework/template/HookedFunctionsDoNotHook/Package.swift

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+// swift-tools-version:5.0
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftNIO open source project
+//
+// Copyright (c) 2017-2018 Apple Inc. and the SwiftNIO project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+import PackageDescription
+
+let package = Package(
+    name: "HookedFunctions",
+    products: [
+        .library(name: "HookedFunctions", type: .dynamic, targets: ["HookedFunctions"]),
+    ],
+    dependencies: [
+        .package(url: "../AtomicCounter/", .branch("master")),
+    ],
+    targets: [
+        .target(name: "HookedFunctions", dependencies: ["AtomicCounter"]),
+    ]
+)

IntegrationTests/allocation-counter-tests-framework/template/HookedFunctionsDoNotHook/Sources/HookedFunctions/include/hooked-functions.h

@@ -0,0 +1,18 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftNIO open source project
+//
+// Copyright (c) 2017-2018 Apple Inc. and the SwiftNIO project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef HOOKED_FREE
+#define HOOKED_FREE
+
+#endif

IntegrationTests/allocation-counter-tests-framework/template/HookedFunctionsDoNotHook/Sources/HookedFunctions/src/hooked-functions.c

@@ -0,0 +1,13 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftNIO open source project
+//
+// Copyright (c) 2017-2018 Apple Inc. and the SwiftNIO project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//

IntegrationTests/allocation-counter-tests-framework/template/Sources/bootstrapDoNotHook/main.c

@@ -0,0 +1,19 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftNIO open source project
+//
+// Copyright (c) 2017-2018 Apple Inc. and the SwiftNIO project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+void swift_main(void);
+
+int main() {
+    swift_main();
+}