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Move test.c and joystick.c to examples/
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
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@@ -0,0 +1,52 @@
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# libuEv examples
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#
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# Copyright (c) 2012 Flemming Madsen <flemming!madsen()madsensoft!dk>
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# Copyright (c) 2013-2015 Joachim Nilsson <troglobit()gmail!com>
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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.PHONY: all clean
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TARGET = joystick test
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OBJS := $(addsuffix .o, $(TARGET))
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SRCS := $(OBJS:.o=.c)
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DEPS := $(SRCS:.c=.d)
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CPPFLAGS += -I../
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LDFLAGS := -L../
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LDLIBS := ../$(STATICLIB)
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# This magic trick looks like a comment, but works on BSD PMake
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#include <../rules.mk>
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include ../rules.mk
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all: $(TARGET)
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test: test.o
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joystick: joystick.o
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clean:
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-@$(RM) $(TARGET) *.o
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distclean: clean
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-@$(RM) $(DEPS) $(JUNK)
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# Include automatically generated rules
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-include $(DEPS)
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@@ -0,0 +1,84 @@
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/* Simple example of how to use libuEv with Linux joystick API
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*
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* Copyright (c) 2014-2015 Joachim Nilsson <troglobit()gmail!com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "uev.h"
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#define UNUSED(arg) arg __attribute__ ((unused))
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struct js_event {
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uint32_t time; /* event timestamp in milliseconds */
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int16_t value; /* value */
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uint8_t type; /* event type */
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uint8_t number; /* axis/button number */
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} e;
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static void joystick_cb(uev_ctx_t *UNUSED(ctx), uev_t *w, void *UNUSED(arg), int UNUSED(events))
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{
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if (read (w->fd, &e, sizeof(e)) < 0)
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errx(errno, "Failed reading joystick event");
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switch (e.type) {
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case 1:
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if (e.value) printf("Button %d pressed\n", e.number);
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else printf("Button %d released\n", e.number);
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break;
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case 2:
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printf("Joystick axis %d moved, value %d!\n", e.number, e.value);
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break;
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}
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}
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int main(void)
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{
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int fd = open("/dev/input/js1", O_RDONLY, O_NONBLOCK);
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uev_t js1_watcher;
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uev_ctx_t ctx;
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if (fd < 0)
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errx(errno, "Cannot find a joystick attached.");
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uev_init(&ctx);
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uev_io_init(&ctx, &js1_watcher, joystick_cb, NULL, fd, UEV_READ);
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puts("Starting, press Ctrl-C to exit.");
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return uev_run(&ctx, 0);
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}
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/**
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* Local Variables:
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* compile-command: "gcc -o joystick joystick.c io.o timer.o signal.o main.o"
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* version-control: t
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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+154
@@ -0,0 +1,154 @@
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/* Test libuEv event library
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*
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* Copyright (c) 2012 Flemming Madsen <flemming!madsen()madsensoft!dk>
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* Copyright (c) 2013-2015 Joachim Nilsson <troglobit()gmail!com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h> /* intptr_t */
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#include "uev.h"
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#define UNUSED(arg) arg __attribute__ ((unused))
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typedef struct {
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int counter;
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} my_t;
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static int in, out;
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static int period = 0;
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static uev_t *watchdog;
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static void lifetime_cb(uev_ctx_t *ctx, uev_t UNUSED(*w), void *arg, int UNUSED(events))
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{
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fprintf(stderr, "\nLifetime exceeded, program completed successfully! (arg:%p)\n", arg);
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uev_exit(ctx);
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}
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/* The pipe watchdog, if it triggers we haven't received data in time. */
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static void timeout_cb(uev_ctx_t *ctx, uev_t *UNUSED(w), void *arg, int UNUSED(events))
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{
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watchdog = NULL;
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fprintf(stderr, "\nTimeout exceeded %p\n", arg);
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// uev_timer_stop(w); <-- No need to stop timers with period=0 :)
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uev_exit(ctx);
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}
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static void periodic_task(uev_ctx_t UNUSED(*ctx), uev_t UNUSED(*w), void UNUSED(*arg), int UNUSED(events))
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{
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fprintf(stderr, "|");
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}
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static void signal_cb(uev_ctx_t *UNUSED(ctx), uev_t *w, void *UNUSED(arg), int UNUSED(events))
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{
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fprintf(stderr, w->signo == SIGINT ? "^Cv" : "^\v");
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}
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static void pipe_read_cb(uev_ctx_t *UNUSED(ctx), uev_t UNUSED(*w), void UNUSED(*arg), int UNUSED(events))
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{
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int cnt;
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char msg[50];
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/* Kick watchdog */
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if (watchdog)
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uev_timer_set(watchdog, 1000, 0);
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cnt = read(in, msg, sizeof(msg));
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// fprintf(stderr, "READ %.*s %d\n", cnt, msg, cnt);
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fprintf(stderr, "%.*s.%d ", cnt, msg, cnt);
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}
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static void pipe_write_cb(uev_ctx_t UNUSED(*ctx), uev_t *w, void *arg, int UNUSED(events))
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{
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my_t *my = arg;
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char *msg = "TESTING";
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if (write(out, msg, my->counter) < 0) {
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perror("\nFailed writing to pipe");
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return;
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}
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// fprintf(stderr, "WRITE %.*s %d\n", my->counter, msg, my->counter);
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fprintf(stderr, "%d ", my->counter);
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period = my->counter + 5;
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my->counter++;
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uev_timer_set(w, period * 100, 0);
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}
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int main(void)
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{
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int fd[2];
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my_t my = { .counter = 1 };
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uev_t timeout, wdt, periodic, writer, reader, sigint_watcher, sigquit_watcher;
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uev_ctx_t ctx;
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/* Work load, one timer callback writes to a pipe periodically,
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* and one I/O watcher that is called every time the pipe has
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* some data. */
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if (pipe(fd) < 0)
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return 1;
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/* Initialize libuEv */
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uev_init(&ctx);
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/* Signal watchers, Ctrl-C => SIGINT, Ctrl-\ => SIGQUIT */
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uev_signal_init(&ctx, &sigint_watcher, signal_cb, NULL, SIGINT);
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uev_signal_init(&ctx, &sigquit_watcher, signal_cb, NULL, SIGQUIT);
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/* Total program execution time */
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uev_timer_init(&ctx, &timeout, lifetime_cb, (void *)(intptr_t)2, 4000, 0);
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/* Main pipe worker and consumer */
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in = fd[0];
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out = fd[1];
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uev_io_init(&ctx, &reader, pipe_read_cb, NULL, in, UEV_READ);
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uev_timer_init(&ctx, &writer, pipe_write_cb, &my, 400, 0);
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/* Watchdog for the above timer callback, if it doesn't wake up
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* and write to the pipe within a given deadline it will bark. */
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uev_timer_init(&ctx, &wdt, timeout_cb, (void *)(intptr_t)1, 950, 0);
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watchdog = &wdt;
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/* Periodic background task */
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uev_timer_init(&ctx, &periodic, periodic_task, NULL, 200, 200);
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/* Start event loop */
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uev_run(&ctx, 0);
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fprintf(stderr, "Period is %d must be 10: %s\n", period, 10 == period ? "OK" : "ERROR!");
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if (10 != period)
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return 1;
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return 0;
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}
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/**
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* Local Variables:
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* version-control: t
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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