Task graph/thread pool experimental API design

src/experimental/makefile

@@ -0,0 +1,63 @@
+MKFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
+MKFILE_DIR := $(patsubst %/,%,$(dir $(MKFILE_PATH)))
+PROJECT_ROOT := $(shell git rev-parse --show-toplevel)
+MODULE_ROOT := $(MKFILE_DIR)
+PRIVATE_DIR := $(MODULE_ROOT)/private
+PUBLIC_DIR := $(MODULE_ROOT)/public
+CONFIG_DIR := $(PROJECT_ROOT)/src/utl/public/utl/preprocessor
+
+BIN = main
+OUTPUT_DIR := $(MODULE_ROOT)/build
+INTERMEDIATE_DIR := $(OUTPUT_DIR)/obj
+MODULE_SRCS := $(shell find $(PRIVATE_DIR) $(PUBLIC_DIR) -name '*.cpp')
+MODULE_INCLUDES := $(shell find $(PRIVATE_DIR) $(PUBLIC_DIR) -name '*.h')
+
+.PHONY = all clean print preprocess compile
+CXX := c++
+CXX_FLAGS := -std=c++17 -fPIC -O1 -I$(PUBLIC_DIR) -I$(PRIVATE_DIR) -I$(CONFIG_DIR)
+LINKER_FLAGS := -lm
+OBJECTS := $(addsuffix .o, $(basename $(MODULE_SRCS:$(MODULE_ROOT)/%=%)))
+OBJECT_PATHS := $(addprefix $(INTERMEDIATE_DIR)/,$(OBJECTS))
+DEPENDENCIES := $(OBJECTS:.o=.d)
+PREPROCESSED := $(OBJECTS:.o=.prep.cpp)
+
+all: $(BIN)
+
+$(BIN): $(OBJECT_PATHS)
+	@echo "Linking $(OBJECTS)"
+	@$(CXX) $(LINKER_FLAGS) $(OBJECT_PATHS) -o $(OUTPUT_DIR)/$(BIN)
+
+compile: $(OBJECTS)
+	@
+
+$(OBJECTS):%.o: $(MODULE_ROOT)/%.cpp
+	@mkdir -p '$(INTERMEDIATE_DIR)/$(@D)'
+	@echo "Creating object" $@
+	@$(CXX) $(CXX_FLAGS) -MMD -MP -MF '$(INTERMEDIATE_DIR)/$(patsubst %.o,%.d,$@)' -MT '$(INTERMEDIATE_DIR)/$@' -c $< -o '$(INTERMEDIATE_DIR)/$@'
+
+-include $(INTERMEDIATE_DIR)/$(DEPENDENCIES)
+
+preprocess: $(PREPROCESSED)
+	@
+
+$(PREPROCESSED):%.prep.cpp: $(MODULE_ROOT)/%.cpp
+	@mkdir -p '$(INTERMEDIATE_DIR)/$(@D)'
+	@echo "Running preprocessor" $@
+	@$(CXX) $(CXX_FLAGS) -MMD -MP -MF '$(INTERMEDIATE_DIR)/$(patsubst %.prep.cpp,%.d,$@)' -MT '$(INTERMEDIATE_DIR)/$@' -E $< -o '$(INTERMEDIATE_DIR)/$@'
+
+clean:
+	@echo "Cleaning up..."
+	@rm -rvf $(INTERMEDIATE_DIR)/**/*.o $(INTERMEDIATE_DIR)/**/*.d $(INTERMEDIATE_DIR)/**/*.prep.cpp $(OUTPUT_DIR)/$(BIN)
+
+print:
+	@echo "Bin: $(BIN)\n"
+	@echo "Makefile Directory: $(MKFILE_DIR)\n"
+	@echo "Sources: $(MODULE_SRCS)\n"
+	@echo "Objects: $(OBJECTS)\n"
+	@echo "Preprocessed: $(PREPROCESSED)\n"
+	@echo "Includes: $(MODULE_INCLUDES)\n"
+	@echo "Dependencies: $(DEPENDENCIES)\n"
+	@echo "CXX Flags: $(CXX_FLAGS)\n"
+	@echo "Linker Flags: $(LINKER_FLAGS)\n"
+	@echo "Output Directory: $(OUTPUT_DIR)\n"
+	@echo "Intermediate Directory: $(INTERMEDIATE_DIR)\n"

src/experimental/private/main.cpp

@@ -0,0 +1,7 @@
+
+#include <cstdio>
+
+int main(int argc, char** argv) {
+    puts("hello world");
+    return 0;
+}