windows: Initial addition

CMakeLists.txt

@@ -64,14 +64,17 @@ elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
   message(STATUS "FreeBSD detected")
   set(METER_SOURCES "freebsd/memory.cc" "freebsd/cpu.cc" "common/load.cc")
 elseif(CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
-  # OpenBSD Stuff Here
   message(STATUS "OpenBSD detected")
   set(METER_SOURCES "openbsd/memory.cc" "openbsd/cpu.cc" "common/load.cc")
   if(CMAKE_SYSTEM_VERSION VERSION_LESS 5.7)
     add_definitions(-DOPENBSD_WORKAROUND=1)
   endif()
 elseif(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
+  message(STATUS "NetBSD detected")
   set(METER_SOURCES "netbsd/memory.cc" "netbsd/cpu.cc" "common/load.cc")
+elseif(CMAKE_SYSTEM_NAME MATCHES "Windows")
+  message(STATUS "Windows detected")
+  set(METER_SOURCES "windows/memory.cc" "windows/cpu.cc" "windows/load.cc")
 else()
   message(FATAL_ERROR "${CMAKE_SYSTEM_NAME} Cannot be compiled on this system")
   message(FATAL_ERROR "Cannot be compiled on this system")
@@ -82,8 +85,11 @@ set(COMMON_SOURCES "common/main.cc" "common/memory.cc" "common/graph.cc" "common
 
 add_executable(tmux-mem-cpu-load ${COMMON_SOURCES} ${METER_SOURCES})
 # add binary tree so we find version.h
-target_include_directories(tmux-mem-cpu-load "${PROJECT_BINARY_DIR}")
-target_include_directories(tmux-mem-cpu-load "${PROJECT_SOURCE_DIR}" "${PROJECT_SOURCE_DIR}/common")
+target_include_directories(tmux-mem-cpu-load PUBLIC "${PROJECT_BINARY_DIR}")
+target_include_directories(tmux-mem-cpu-load PUBLIC "${PROJECT_SOURCE_DIR}" "${PROJECT_SOURCE_DIR}/common")
+if(CMAKE_SYSTEM_NAME MATCHES "Windows")
+  target_link_libraries(tmux-mem-cpu-load Pdh)
+endif()
 install(TARGETS tmux-mem-cpu-load RUNTIME DESTINATION bin)
 
 include(CTest)

common/main.cc

@@ -247,6 +247,8 @@ int main( int argc, char** argv )
     << cpu_string( cpu_mode, cpu_usage_delay, graph_lines, use_colors, use_powerline_left, use_powerline_right )
     << load_string( use_colors, use_powerline_left, use_powerline_right, averages_count );
 
+  std::cout << std::endl;
+
   return EXIT_SUCCESS;
 }
 

common/powerline.cc

@@ -28,7 +28,7 @@
 const char * bg2fg( const char s[] )
 {
   static char buf[40] = {0};
-  const char *substr = index(s, ',');
+  const char *substr = strchr(s, ',');
   buf[0] = '#';
   buf[1] = '[';
   buf[2] = 'f';

windows/cpu.cc

@@ -0,0 +1,53 @@
+/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
+ *
+ * Copyright 2012 Matthew McCormick
+ * Copyright 2015 Pawel 'l0ner' Soltys
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string>
+#include <fstream>
+#include <unistd.h> // usleep
+
+#include <thread>
+
+#include "TCHAR.h"
+#include "pdh.h"
+
+static PDH_HQUERY cpuQuery;
+static PDH_HCOUNTER cpuTotal;
+
+#include "cpu.h"
+#include "luts.h"
+
+uint8_t get_cpu_count()
+{
+  return static_cast< uint8_t >( std::thread::hardware_concurrency() );
+}
+
+float cpu_percentage( unsigned cpu_usage_delay )
+{
+  PdhOpenQuery(NULL, 0, &cpuQuery);
+  PdhAddCounter(cpuQuery, "\\Processor(_Total)\\% Processor Time", 0, &cpuTotal);
+  PdhCollectQueryData(cpuQuery);
+
+  usleep( cpu_usage_delay );
+
+  PDH_FMT_COUNTERVALUE counterVal;
+
+  PdhCollectQueryData(cpuQuery);
+  PdhGetFormattedCounterValue(cpuTotal, PDH_FMT_DOUBLE, NULL, &counterVal);
+  return static_cast< float >( counterVal.doubleValue );
+}
+

windows/load.cc

@@ -0,0 +1,44 @@
+/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
+ *
+ * Copyright 2012 Matthew McCormick
+ * Copyright 2013 Justin Crawford <Justasic@gmail.com>
+ * Copyright 2015 Pawel 'l0ner' Soltys
+ * Copyright 2016 Compilenix
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Based on: github.com/freebsd/freebsd/blob/master/usr.bin/top/machine.c
+// Based on: Apple.cpp for load_string/mem_string and apple's documentation
+
+#include <sstream>
+#include <string>
+#include <cmath> // floorf()
+#include <sys/types.h>
+
+#include "cpu.h"
+#include "load.h"
+#include "luts.h"
+
+#include "powerline.h"
+
+// Load Averages
+std::string load_string( bool use_colors,
+  bool use_powerline_left, bool use_powerline_right,
+  short num_averages )
+{
+  // Not implemented
+  std::ostringstream ss;
+  ss << (char) 0;
+  return ss.str();
+}

windows/memory.cc

@@ -0,0 +1,40 @@
+/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
+ *
+ * Copyright 2012 Matthew McCormick
+ * Copyright 2015 Pawel 'l0ner' Soltys
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sstream>
+#include <fstream>
+
+#include "windows.h"
+
+#include "memory.h"
+#include "conversions.h"
+
+void mem_status( MemoryStatus & status )
+{
+  MEMORYSTATUSEX memory_status;
+  memory_status.dwLength = sizeof(memory_status);
+
+  GlobalMemoryStatusEx(&memory_status);
+
+  // we want megabytes on output, but since the values already come as
+  // kilobytes we need to divide them by 1024 only once, thus we use
+  // KILOBYTES
+  status.used_mem = convert_unit(static_cast< float >( memory_status.ullAvailPhys ), MEGABYTES, BYTES);
+  status.total_mem = convert_unit(static_cast< float >( memory_status.ullTotalPhys ), MEGABYTES, BYTES);
+}
+