add thread event example

examples/threads/Makefile

@@ -0,0 +1,7 @@
+SUBDIRS:= `ls | egrep -v '^(CVS)$$'`
+all:
+	@for i in $(SUBDIRS); do if test -e $$i/Makefile ; then $(MAKE) -C $$i || { exit 1;} fi; done;
+clean:
+	@for i in $(SUBDIRS); do if test -e $$i/Makefile ; then $(MAKE)  -C $$i clean || { exit 1;} fi; done;
+install:
+	@for i in $(SUBDIRS); do if test -e $$i/Makefile ; then $(MAKE)  -C $$i install || { exit 1;} fi; done;

examples/threads/event/Makefile

@@ -0,0 +1,163 @@
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+TOPDIR ?= $(CURDIR)
+include $(DEVKITARM)/3ds_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# DATA is a list of directories containing data files
+# INCLUDES is a list of directories containing header files
+#
+# NO_SMDH: if set to anything, no SMDH file is generated.
+# APP_TITLE is the name of the app stored in the SMDH file (Optional)
+# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional)
+# APP_AUTHOR is the author of the app stored in the SMDH file (Optional)
+# ICON is the filename of the icon (.png), relative to the project folder.
+#   If not set, it attempts to use one of the following (in this order):
+#     - <Project name>.png
+#     - icon.png
+#     - <libctru folder>/default_icon.png
+#---------------------------------------------------------------------------------
+TARGET		:=	$(notdir $(CURDIR))
+BUILD		:=	build
+SOURCES		:=	source
+DATA		:=	data
+INCLUDES	:=	include
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard
+
+CFLAGS	:=	-g -Wall -O2 -mword-relocations \
+			-fomit-frame-pointer -ffast-math \
+			$(ARCH)
+
+CFLAGS	+=	$(INCLUDE) -DARM11 -D_3DS
+
+CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
+
+ASFLAGS	:=	-g $(ARCH)
+LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
+
+LIBS	:= -lctru -lm
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:= $(CTRULIB)
+
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export OUTPUT	:=	$(CURDIR)/$(TARGET)
+export TOPDIR	:=	$(CURDIR)
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+			$(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+			-I$(CURDIR)/$(BUILD)
+
+export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+ifeq ($(strip $(ICON)),)
+	icons := $(wildcard *.png)
+	ifneq (,$(findstring $(TARGET).png,$(icons)))
+		export APP_ICON := $(TOPDIR)/$(TARGET).png
+	else
+		ifneq (,$(findstring icon.png,$(icons)))
+			export APP_ICON := $(TOPDIR)/icon.png
+		endif
+	endif
+else
+	export APP_ICON := $(TOPDIR)/$(ICON)
+endif
+
+ifeq ($(strip $(NO_SMDH)),)
+	export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
+endif
+
+.PHONY: $(BUILD) clean all
+
+#---------------------------------------------------------------------------------
+all: $(BUILD)
+
+$(BUILD):
+	@[ -d $@ ] || mkdir -p $@
+	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf
+
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS	:=	$(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(NO_SMDH)),)
+$(OUTPUT).3dsx	:	$(OUTPUT).elf $(OUTPUT).smdh
+else
+$(OUTPUT).3dsx	:	$(OUTPUT).elf
+endif
+
+$(OUTPUT).elf	:	$(OFILES)
+
+#---------------------------------------------------------------------------------
+# you need a rule like this for each extension you use as binary data
+#---------------------------------------------------------------------------------
+%.bin.o	:	%.bin
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@$(bin2o)
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------

examples/threads/event/source/main.c

@@ -0,0 +1,81 @@
+#include <string.h>
+#include <malloc.h>
+#include <inttypes.h>
+#include <stdio.h>
+
+
+#include <3ds.h>
+
+Handle threadHandle, threadRequest;
+
+#define STACKSIZE (4 * 1024)
+
+volatile bool threadExit = false;
+
+volatile int threadcount=0;
+
+void threadMain(void *arg) {
+
+	while(1) {
+		svcWaitSynchronization(threadRequest, U64_MAX);
+		svcClearEvent(threadRequest);		
+
+		if(threadExit) svcExitThread();
+
+		threadcount++;
+	}
+}
+
+int main(int argc, char** argv) {
+
+
+	gfxInitDefault();
+
+	consoleInit(GFX_TOP, NULL);
+
+
+	svcCreateEvent(&threadRequest,0);
+	u32 *threadStack = memalign(32, STACKSIZE);
+	Result ret = svcCreateThread(&threadHandle, threadMain, 0, &threadStack[STACKSIZE/4], 0x3f, 0);
+
+	printf("thread create returned %x\n", ret);
+
+	// Main loop
+	while (aptMainLoop())
+	{
+		gspWaitForVBlank();
+		hidScanInput();
+
+		printf("\x1b[5;0H");
+		printf("thread counter = %d\n",threadcount);
+
+		u32 kDown = hidKeysDown();
+		if (kDown & KEY_START)
+			break; // break in order to return to hbmenu
+
+		if (kDown * KEY_A)
+			svcSignalEvent(threadRequest);
+
+		// Flush and swap framebuffers
+		gfxFlushBuffers();
+		gfxSwapBuffers();
+	}
+
+	// tell thread to exit
+	threadExit = true;
+
+	// signal the thread
+	svcSignalEvent(threadRequest);
+
+	// give it time to exit
+	svcSleepThread(10000000ULL);
+
+	// close handles and free allocated stack
+	svcCloseHandle(threadRequest);
+	svcCloseHandle(threadHandle);
+	free(threadStack);
+
+
+	gfxExit();
+	return 0;
+}