MDEV-427/MDEV-5713 Add systemd script with notify functionality

1 files changed, 76 insertions, 0 deletions

diff --git a/cmake/systemd.cmake b/cmake/systemd.cmake
new file mode 100644
index 00000000000..7f027bdbf56
--- /dev/null
+++ b/cmake/systemd.cmake
@@ -0,0 +1,76 @@
+# Copyright (c) 2015, Daniel Black. All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
+
+INCLUDE(FindPkgConfig)
+# http://www.cmake.org/cmake/help/v3.0/module/FindPkgConfig.html
+
+MACRO(CHECK_SYSTEMD)
+  IF(UNIX)
+    SET(WITH_SYSTEMD "auto" CACHE STRING "Compile with systemd socket activation and notification")
+    IF(WITH_SYSTEMD STREQUAL "yes" OR WITH_SYSTEMD STREQUAL "auto")
+      IF(PKG_CONFIG_FOUND)
+        IF(WITH_SYSTEMD STREQUAL "yes")
+          pkg_check_modules(LIBSYSTEMD REQUIRED libsystemd)
+        ELSE()
+          pkg_check_modules(LIBSYSTEMD libsystemd)
+        ENDIF()
+        IF(HAVE_DLOPEN)
+          SET(LIBSYSTEMD ${LIBSYSTEMD_LIBRARIES})
+          #SET(CMAKE_REQUIRED_FLAGS ${LIBSYSTEMD_CFLAGS})
+          SET(MYSQLD_LINK_FLAGS "${MYSQLD_LINK_FLAGS} ${LIBSYSTEMD_LDFLAGS}")
+        ELSE()
+          SET(LIBSYSTEMD ${LIBSYSTEMD_STATIC_LIBRARIES})
+          #SET(CMAKE_REQUIRED_FLAGS ${LIBSYSTEMD_STATIC_CFLAGS})
+          SET(MYSQLD_LINK_FLAGS "${MYSQLD_LINK_FLAGS} ${LIBSYSTEMD_STATIC_LDFLAGS}")
+        ENDIF()
+      ELSE()
+        SET(LIBSYSTEMD systemd)
+      ENDIF()
+      SET(CMAKE_REQUIRED_LIBRARIES ${LIBSYSTEMD})
+      CHECK_C_SOURCE_COMPILES(
+      "
+      #include <systemd/sd-daemon.h>
+      int main()
+      {
+        sd_listen_fds(0);
+      }"
+      HAVE_SYSTEMD)
+      CHECK_INCLUDE_FILES(systemd/sd-daemon.h HAVE_SYSTEMD_SD_DAEMON_H)
+      CHECK_FUNCTION_EXISTS(sd_listen_fds HAVE_SYSTEMD_SD_LISTEN_FDS)
+      CHECK_FUNCTION_EXISTS(sd_notify HAVE_SYSTEMD_SD_NOTIFY)
+      CHECK_FUNCTION_EXISTS(sd_notifyf HAVE_SYSTEMD_SD_NOTIFYF)
+      IF(HAVE_SYSTEMD AND HAVE_SYSTEMD_SD_DAEMON_H AND HAVE_SYSTEMD_SD_LISTEN_FDS
+         AND HAVE_SYSTEMD_SD_NOTIFY AND HAVE_SYSTEMD_SD_NOTIFYF)
+        ADD_DEFINITIONS(-DHAVE_SYSTEMD)
+        # should be from pkg-config --variable=systemdsystemconfdir systemd
+        # Missing CMake macro: http://public.kitware.com/Bug/view.php?id=15634
+        SET(SYSTEMD_SYSTEM_CONFDIR /etc/systemd/system)
+        # should be from pkg-config --variable=systemdsystemunitdir systemd
+        SET(SYSTEMD_SYSTEM_UNITDIR /usr/lib/systemd/system/)
+        MESSAGE(STATUS "Systemd features enabled")
+      ELSE()
+        UNSET(LIBSYSTEMD)
+        UNSET(HAVE_SYSTEMD_SD_DAEMON_H)
+        UNSET(HAVE_SYSTEMD_SD_LISTEN_FDS)
+        UNSET(HAVE_SYSTEMD_SD_NOTIFY)
+        UNSET(HAVE_SYSTEMD_SD_NOTIFYF)
+        MESSAGE(STATUS "Systemd features not enabled")
+        IF(WITH_SYSTEMD STREQUAL "yes")
+          MESSAGE(FATAL_ERROR "Requested WITH_SYSTEMD=YES however no dependencies installed/found")
+        ENDIF()
+      ENDIF()
+    ENDIF()
+  ENDIF()
+ENDMACRO()