# HG changeset patch
# Parent  bb7a1425080bc272456650675e5e03896ca21d54
lightsd: add windows support

diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,6 +19,12 @@
 
 ### Platform checks ############################################################
 
+INCLUDE(CheckFunctionExists)
+INCLUDE(CheckVariableExists)
+INCLUDE(TestBigEndian)
+
+TEST_BIG_ENDIAN(BIG_ENDIAN_SYSTEM)
+
 # TODO: we need at least 2.0.19-stable because of the logging defines
 FIND_PACKAGE(Event2 REQUIRED COMPONENTS core)
 FIND_PACKAGE(Endian REQUIRED)
@@ -37,16 +43,10 @@
     INCLUDE(UseLATEX)
 ENDIF ()
 
-INCLUDE(CheckFunctionExists)
-INCLUDE(CheckVariableExists)
-INCLUDE(TestBigEndian)
-
 INCLUDE(CompatReallocArray)
 INCLUDE(CompatSetProctitle)
 INCLUDE(CompatTimeMonotonic)
 
-TEST_BIG_ENDIAN(BIG_ENDIAN_SYSTEM)
-
 ### Global definitions #########################################################
 
 INCLUDE(AddAllSubdirectories)
@@ -54,11 +54,13 @@
 
 SET(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)
 
-SET(CMAKE_C_FLAGS "-pipe ${CMAKE_C_FLAGS}")
-STRING(STRIP "${CMAKE_C_FLAGS}" CMAKE_C_FLAGS)
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE}}")
 STRING(STRIP "${CMAKE_C_FLAGS}" CMAKE_C_FLAGS)
-SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wextra -Wall -Wstrict-prototypes -std=c99")
+IF (CMAKE_C_COMPILER_ID MATCHES "MSVC")
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /Wall")
+ELSE ()
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wextra -Wall -Wstrict-prototypes -std=c99 -pipe")
+ENDIF ()
 SET(CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE} "")
 
 IF (CMAKE_SYSTEM_NAME MATCHES "Linux")
@@ -74,6 +76,14 @@
     ADD_DEFINITIONS("-D_DARWIN_C_SOURCE=1")
 ENDIF ()
 
+IF (MSVC)
+    ADD_DEFINITIONS(
+        "-D_CRT_SECURE_NO_WARNINGS"
+        "-DWIN32_LEAN_AND_MEAN"
+        "-DNOMINMAX"
+    )
+ENDIF ()
+
 ADD_DEFINITIONS(
     "-DLGTD_BIG_ENDIAN_SYSTEM=${BIG_ENDIAN_SYSTEM}"
     "-DLGTD_SIZEOF_VOID_P=${CMAKE_SIZEOF_VOID_P}"
diff --git a/CMakeScripts/FindEndian.cmake b/CMakeScripts/FindEndian.cmake
--- a/CMakeScripts/FindEndian.cmake
+++ b/CMakeScripts/FindEndian.cmake
@@ -12,10 +12,16 @@
     IF (HAVE_ENDIAN_H)
         MESSAGE(STATUS "Looking for endian.h - found")
         SET(ENDIAN_H_PATH "using native headers" CACHE INTERNAL "endian.h path")
-    ELSEIF (EXISTS "${COMPAT_ENDIAN_H}")
+    ELSEIF (EXISTS "${COMPAT_ENDIAN_H}" OR EXISTS "${COMPAT_ENDIAN_H}.in")
         MESSAGE(STATUS "Looking for endian.h - not found, using built-in compatibility file")
-        FILE(COPY "${COMPAT_ENDIAN_H}" DESTINATION "${LIGHTSD_BINARY_DIR}/compat/")
-        SET(ENDIAN_H_PATH "${COMPAT_ENDIAN_H}" CACHE INTERNAL "endian.h path")
+        IF (EXISTS "${COMPAT_ENDIAN_H}")
+            FILE(COPY "${COMPAT_ENDIAN_H}" DESTINATION "${LIGHTSD_BINARY_DIR}/compat/")
+            SET(ENDIAN_H_PATH "${COMPAT_ENDIAN_H}" CACHE INTERNAL "endian.h path")
+        ELSE ()
+            MESSAGE(STATUS "LOUIS BIG_ENDIAN_SYSTEM = \"${BIG_ENDIAN_SYSTEM}\"")
+            CONFIGURE_FILE("${COMPAT_ENDIAN_H}.in" "${LIGHTSD_BINARY_DIR}/compat/endian.h")
+            SET(ENDIAN_H_PATH "${COMPAT_ENDIAN_H}.in" CACHE INTERNAL "endian.h path")
+        ENDIF ()
     ELSE ()
         MESSAGE(STATUS "Looking for endian.h - not found")
     ENDIF ()
diff --git a/CMakeScripts/FindEvent2.cmake b/CMakeScripts/FindEvent2.cmake
--- a/CMakeScripts/FindEvent2.cmake
+++ b/CMakeScripts/FindEvent2.cmake
@@ -1,14 +1,21 @@
 FIND_PATH(
     EVENT2_INCLUDE_DIR
     event2/event.h
-    # OpenBSD has libevent1 in /usr/lib, always try /usr/local first:
-    HINTS /usr/local/
+    HINTS
+    /usr/local/ # OpenBSD has libevent1 in /usr/lib, always try /usr/local first
+    $ENV{EVENT2_DIR}/include # Windows...
 )
 
 FOREACH (COMPONENT ${Event2_FIND_COMPONENTS})
     STRING(TOUPPER ${COMPONENT} UPPER_COMPONENT)
     FIND_LIBRARY(
-        EVENT2_${UPPER_COMPONENT}_LIBRARY event_${COMPONENT} HINTS /usr/local/
+        EVENT2_${UPPER_COMPONENT}_LIBRARY
+        event_${COMPONENT}
+        NAMES
+        libevent_${COMPONENT} # Windows
+        HINTS
+        /usr/local/
+        $ENV{EVENT2_DIR}
     )
     IF (EVENT2_${UPPER_COMPONENT}_LIBRARY)
         SET(Event2_${COMPONENT}_FOUND TRUE)
diff --git a/compat/Windows/endian.h.in b/compat/Windows/endian.h.in
new file mode 100644
--- /dev/null
+++ b/compat/Windows/endian.h.in
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <stdlib.h>
+
+#if @BIG_ENDIAN_SYSTEM@
+#   define htobe16(x) (x)
+#   define htole16(x) _byteswap_ushort(x)
+#   define be16toh(x) (x)
+#   define le16toh(x) _byteswap_ushort(x)
+
+#   define htobe32(x) (x)
+#   define htole32(x) _byteswap_ulong(x)
+#   define be32toh(x) (x)
+#   define le32toh(x) _byteswap_ulong(x)
+
+#   define htobe64(x) (x)
+#   define htole64(x) _byteswap_uint64(x)
+#   define be64toh(x) (x)
+#   define le64toh(x) _byteswap_uint64(x)
+#else
+#   define htobe16(x) _byteswap_ushort(x)
+#   define htole16(x) (x)
+#   define be16toh(x) _byteswap_ushort(x)
+#   define le16toh(x) (x)
+
+#   define htobe32(x) _byteswap_ulong(x)
+#   define htole32(x) (x)
+#   define be32toh(x) _byteswap_ulong(x)
+#   define le32toh(x) (x)
+
+#   define htobe64(x) _byteswap_uint64(x)
+#   define htole64(x) (x)
+#   define be64toh(x) _byteswap_uint64(x)
+#   define le64toh(x) (x)
+#endif
diff --git a/compat/Windows/time_monotonic.c b/compat/Windows/time_monotonic.c
new file mode 100644
--- /dev/null
+++ b/compat/Windows/time_monotonic.c
@@ -0,0 +1,63 @@
+// Copyright (c) 2017, Louis Opter <kalessin@kalessin.fr>
+//
+// This file is part of lighstd.
+//
+// lighstd 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// lighstd 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 lighstd.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <Windows.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include "time_monotonic.h"
+
+enum { MSECS_IN_NSEC = 1000000 };
+
+lgtd_time_mono_t
+lgtd_time_monotonic_msecs(void)
+{
+    static LARGE_INTEGER frequency = { .QuadPart = 0 };
+    if (frequency.QuadPart == 0
+        && QueryPerformanceFrequency(&frequency) == false) {
+        LPSTR msg = NULL;
+        DWORD msg_len = FormatMessageA(
+            FORMAT_MESSAGE_ALLOCATE_BUFFER
+            | FORMAT_MESSAGE_FROM_SYSTEM
+            | FORMAT_MESSAGE_IGNORE_INSERTS,
+            NULL,
+            GetLastError(),
+            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+            // By default the message is stored in the buffer pointed by
+            // lpMsgBuf, but we use FORMAT_MESSAGE_ALLOCATE_BUFFER to have
+            // the buffer allocated for us.
+            // So instead you need to give the function a pointer on your
+            // pointer instead of your buffer and do an ugly cast:
+            (LPSTR)&msg,
+            0,
+            NULL
+        );
+        if (!msg_len) {
+            msg = "unknown error";
+        }
+        fprintf(stderr, "lightsd: QPC timer unavailable: %s.\r\n", msg);
+        exit(1);
+    }
+
+    LARGE_INTEGER time;
+    QueryPerformanceCounter(&time);
+    time.QuadPart = time.QuadPart * MSECS_IN_NSEC;
+    time.QuadPart = time.QuadPart / frequency.QuadPart;
+    return time.QuadPart;
+}
diff --git a/compat/Windows/time_monotonic.h b/compat/Windows/time_monotonic.h
new file mode 100644
--- /dev/null
+++ b/compat/Windows/time_monotonic.h
@@ -0,0 +1,22 @@
+// Copyright (c) 2017, Louis Opter <kalessin@kalessin.fr>
+//
+// This file is part of lighstd.
+//
+// lighstd 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// lighstd 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 lighstd.  If not, see <http://www.gnu.org/licenses/>.
+
+#pragma once
+
+typedef int64_t lgtd_time_mono_t;
+
+lgtd_time_mono_t lgtd_time_monotonic_msecs(void);