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https://github.com/LadybirdBrowser/ladybird.git
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36c892ae14
This adds the method get_number_of_processing_units() which returns the number of processing units the system has available.
74 lines
2 KiB
Bash
74 lines
2 KiB
Bash
# shellcheck shell=bash
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# shellcheck disable=SC2034
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# SC2034: "Variable appears unused. Verify it or export it."
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# Those are intentional here, as the file is meant to be included elsewhere.
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# NOTE: If using another privilege escalation binary make sure it is configured or has the appropiate flag
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# to keep the current environment variables in the launched process (in sudo's case this is achieved
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# through the -E flag described in sudo(8).
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SUDO="sudo -E"
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if [ "$(uname -s)" = "SerenityOS" ]; then
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SUDO="pls -E"
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fi
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die() {
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echo "die: $*"
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exit 1
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}
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exit_if_running_as_root() {
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if [ "$(id -u)" -eq 0 ]; then
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die "$*"
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fi
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}
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find_executable() {
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paths=("/usr/sbin" "/sbin")
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if [ "$(uname -s)" = "Darwin" ]; then
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if [ -n "${HOMEBREW_PREFIX}" ]; then
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paths+=("${HOMEBREW_PREFIX}/opt/e2fsprogs/bin" "${HOMEBREW_PREFIX}/opt/e2fsprogs/sbin")
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elif command -v brew > /dev/null 2>&1; then
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if prefix=$(brew --prefix e2fsprogs 2>/dev/null); then
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paths+=("${prefix}/bin" "${prefix}/sbin")
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fi
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fi
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fi
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executable="${1}"
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# Prefer tools from PATH over fallback paths
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if command -v "${executable}"; then
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return 0
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fi
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for path in "${paths[@]}"; do
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if command -v "${path}/${executable}"; then
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return 0
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fi
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done
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# We return the executable's name back to provide meaningful messages on future failure
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echo "${executable}"
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}
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FUSE2FS_PATH="$(find_executable fuse2fs)"
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RESIZE2FS_PATH="$(find_executable resize2fs)"
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E2FSCK_PATH="$(find_executable e2fsck)"
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MKE2FS_PATH="$(find_executable mke2fs)"
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get_number_of_processing_units() {
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number_of_processing_units="nproc"
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SYSTEM_NAME="$(uname -s)"
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if [ "$SYSTEM_NAME" = "OpenBSD" ]; then
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number_of_processing_units="sysctl -n hw.ncpuonline"
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elif [ "$SYSTEM_NAME" = "FreeBSD" ]; then
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number_of_processing_units="sysctl -n hw.ncpu"
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elif [ "$SYSTEM_NAME" = "Darwin" ]; then
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number_of_processing_units="sysctl -n hw.ncpu"
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fi
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($number_of_processing_units)
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}
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