issue #253: m2m polling limit

Thanks for @jpalus for #249 with compatibility code

.bumpversion.cfg

@@ -1,7 +1,7 @@
 [bumpversion]
 commit = True
 tag = True
-current_version = 5.46
+current_version = 5.48
 parse = (?P<major>\d+)\.(?P<minor>\d+)
 serialize = 
 	{major}.{minor}

Makefile

@@ -9,9 +9,6 @@ PY ?= python3
 CFLAGS ?= -O3
 LDFLAGS ?=
 
-RPI_VC_HEADERS ?= /opt/vc/include
-RPI_VC_LIBS ?= /opt/vc/lib
-
 export
 
 _LINTERS_IMAGE ?= ustreamer-linters
@@ -22,6 +19,9 @@ define optbool
 $(filter $(shell echo $(1) | tr A-Z a-z), yes on 1)
 endef
 
+ifeq ($(V),)
+	ECHO = @
+endif
 
 # =====
 all:
@@ -36,18 +36,18 @@ endif
 
 apps:
 	$(MAKE) -C src
-	@ ln -sf src/ustreamer.bin ustreamer
-	@ ln -sf src/ustreamer-dump.bin ustreamer-dump
+	$(ECHO) ln -sf src/ustreamer.bin ustreamer
+	$(ECHO) ln -sf src/ustreamer-dump.bin ustreamer-dump
 
 
 python:
 	$(MAKE) -C python
-	@ ln -sf python/build/lib.*/*.so .
+	$(ECHO) ln -sf python/build/lib.*/*.so .
 
 
 janus:
 	$(MAKE) -C janus
-	@ ln -sf janus/*.so .
+	$(ECHO) ln -sf janus/*.so .
 
 
 install: all

janus/Makefile

@@ -31,13 +31,13 @@ endif
 # =====
 $(_PLUGIN): $(_SRCS:%.c=$(_BUILD)/%.o)
 	$(info == SO $@)
-	@ $(CC) $^ -o $@ $(_LDFLAGS)
+	$(ECHO) $(CC) $^ -o $@ $(_LDFLAGS)
 
 
 $(_BUILD)/%.o: %.c
 	$(info -- CC $<)
-	@ mkdir -p $(dir $@) || true
-	@ $(CC) $< -o $@ $(_CFLAGS)
+	$(ECHO) mkdir -p $(dir $@) || true
+	$(ECHO) $(CC) $< -o $@ $(_CFLAGS)
 
 
 

man/ustreamer-dump.1

@@ -1,6 +1,6 @@
 .\" Manpage for ustreamer-dump.
 .\" Open an issue or pull request to https://github.com/pikvm/ustreamer to correct errors or typos
-.TH USTREAMER-DUMP 1 "version 5.46" "January 2021"
+.TH USTREAMER-DUMP 1 "version 5.48" "January 2021"
 
 .SH NAME
 ustreamer-dump \- Dump uStreamer's memory sink to file

man/ustreamer.1

@@ -1,6 +1,6 @@
 .\" Manpage for ustreamer.
 .\" Open an issue or pull request to https://github.com/pikvm/ustreamer to correct errors or typos
-.TH USTREAMER 1 "version 5.46" "November 2020"
+.TH USTREAMER 1 "version 5.48" "November 2020"
 
 .SH NAME
 ustreamer \- stream MJPEG video from any V4L2 device to the network

pkg/arch/PKGBUILD

@@ -3,7 +3,7 @@
 
 
 pkgname=ustreamer
-pkgver=5.46
+pkgver=5.48
 pkgrel=1
 pkgdesc="Lightweight and fast MJPEG-HTTP streamer"
 url="https://github.com/pikvm/ustreamer"

pkg/openwrt/Makefile

@@ -6,7 +6,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ustreamer
-PKG_VERSION:=5.46
+PKG_VERSION:=5.48
 PKG_RELEASE:=1
 PKG_MAINTAINER:=Maxim Devaev <mdevaev@gmail.com>
 

python/Makefile

@@ -9,7 +9,7 @@ PY ?= python3
 # =====
 all:
 	$(info == PY_BUILD ustreamer-*.so)
-	@ $(PY) setup.py build
+	$(ECHO) $(PY) setup.py build
 
 
 install:

python/setup.py

@@ -17,7 +17,7 @@ def _find_sources(suffix: str) -> list[str]:
 if __name__ == "__main__":
     setup(
         name="ustreamer",
-        version="5.46",
+        version="5.48",
         description="uStreamer tools",
         author="Maxim Devaev",
         author_email="mdevaev@gmail.com",

src/Makefile

@@ -42,7 +42,7 @@ endef
 
 ifneq ($(call optbool,$(WITH_GPIO)),)
 _USTR_LIBS += -lgpiod
-override _CFLAGS += -DWITH_GPIO
+override _CFLAGS += -DWITH_GPIO $(shell pkg-config --atleast-version=2 libgpiod 2> /dev/null && echo -DHAVE_GPIOD2)
 _USTR_SRCS += $(shell ls ustreamer/gpio/*.c)
 endif
 
@@ -86,18 +86,18 @@ install-strip: install
 
 $(_USTR): $(_USTR_SRCS:%.c=$(_BUILD)/%.o)
 	$(info == LD $@)
-	@ $(CC) $^ -o $@ $(_LDFLAGS) $(_USTR_LIBS)
+	$(ECHO) $(CC) $^ -o $@ $(_LDFLAGS) $(_USTR_LIBS)
 
 
 $(_DUMP): $(_DUMP_SRCS:%.c=$(_BUILD)/%.o)
 	$(info == LD $@)
-	@ $(CC) $^ -o $@ $(_LDFLAGS) $(_DUMP_LIBS)
+	$(ECHO) $(CC) $^ -o $@ $(_LDFLAGS) $(_DUMP_LIBS)
 
 
 $(_BUILD)/%.o: %.c
 	$(info -- CC $<)
-	@ mkdir -p $(dir $@) || true
-	@ $(CC) $< -o $@ $(_CFLAGS)
+	$(ECHO) mkdir -p $(dir $@) || true
+	$(ECHO) $(CC) $< -o $@ $(_CFLAGS)
 
 
 clean:

src/libs/const.h

@@ -23,7 +23,7 @@
 #pragma once
 
 #define US_VERSION_MAJOR 5
-#define US_VERSION_MINOR 46
+#define US_VERSION_MINOR 48
 
 #define US_MAKE_VERSION2(_major, _minor) #_major "." #_minor
 #define US_MAKE_VERSION1(_major, _minor) US_MAKE_VERSION2(_major, _minor)

src/ustreamer/gpio/gpio.c

@@ -34,24 +34,26 @@ us_gpio_s us_g_gpio = {
 		.line = NULL, \
 		.state = false \
 	}
-
 	.prog_running = MAKE_OUTPUT("prog-running"),
 	.stream_online = MAKE_OUTPUT("stream-online"),
 	.has_http_clients = MAKE_OUTPUT("has-http-clients"),
-
 #	undef MAKE_OUTPUT
 
-	// mutex uninitialized
-	.chip = NULL
+#	ifndef HAVE_GPIOD2
+	.chip = NULL,
+#	endif
+	.initialized = false,
 };
 
 
-static void _gpio_output_init(us_gpio_output_s *output);
+static void _gpio_output_init(us_gpio_output_s *output, struct gpiod_chip *chip);
 static void _gpio_output_destroy(us_gpio_output_s *output);
 
 
 void us_gpio_init(void) {
+#	ifndef HAVE_GPIOD2
 	assert(us_g_gpio.chip == NULL);
+#	endif
 	if (
 		us_g_gpio.prog_running.pin >= 0
 		|| us_g_gpio.stream_online.pin >= 0
@@ -59,10 +61,17 @@ void us_gpio_init(void) {
 	) {
 		US_MUTEX_INIT(us_g_gpio.mutex);
 		US_LOG_INFO("GPIO: Using chip device: %s", us_g_gpio.path);
-		if ((us_g_gpio.chip = gpiod_chip_open(us_g_gpio.path)) != NULL) {
-			_gpio_output_init(&us_g_gpio.prog_running);
-			_gpio_output_init(&us_g_gpio.stream_online);
-			_gpio_output_init(&us_g_gpio.has_http_clients);
+		struct gpiod_chip *chip;
+		if ((chip = gpiod_chip_open(us_g_gpio.path)) != NULL) {
+			_gpio_output_init(&us_g_gpio.prog_running, chip);
+			_gpio_output_init(&us_g_gpio.stream_online, chip);
+			_gpio_output_init(&us_g_gpio.has_http_clients, chip);
+#			ifdef HAVE_GPIOD2
+			gpiod_chip_close(chip);
+#			else
+			us_g_gpio.chip = chip;
+#			endif
+			us_g_gpio.initialized = true;
 		} else {
 			US_LOG_PERROR("GPIO: Can't initialize chip device %s", us_g_gpio.path);
 		}
@@ -73,23 +82,32 @@ void us_gpio_destroy(void) {
 	_gpio_output_destroy(&us_g_gpio.prog_running);
 	_gpio_output_destroy(&us_g_gpio.stream_online);
 	_gpio_output_destroy(&us_g_gpio.has_http_clients);
-	if (us_g_gpio.chip != NULL) {
+	if (us_g_gpio.initialized) {
+#		ifndef HAVE_GPIOD2
 		gpiod_chip_close(us_g_gpio.chip);
 		us_g_gpio.chip = NULL;
+#		endif
 		US_MUTEX_DESTROY(us_g_gpio.mutex);
+		us_g_gpio.initialized = false;
 	}
 }
 
 int us_gpio_inner_set(us_gpio_output_s *output, bool state) {
 	int retval = 0;
 
+#	ifndef HAVE_GPIOD2
 	assert(us_g_gpio.chip != NULL);
+#	endif
 	assert(output->line != NULL);
 	assert(output->state != state); // Must be checked in macro for the performance
 	US_MUTEX_LOCK(us_g_gpio.mutex);
 
-	if (gpiod_line_set_value(output->line, (int)state) < 0) { \
-		US_LOG_PERROR("GPIO: Can't write value %d to line %s (will be disabled)", state, output->consumer); \
+#	ifdef HAVE_GPIOD2
+	if (gpiod_line_request_set_value(output->line, output->pin, state) < 0) {
+#	else
+	if (gpiod_line_set_value(output->line, (int)state) < 0) {
+#	endif
+		US_LOG_PERROR("GPIO: Can't write value %d to line %s", state, output->consumer); \
 		_gpio_output_destroy(output);
 		retval = -1;
 	}
@@ -98,14 +116,42 @@ int us_gpio_inner_set(us_gpio_output_s *output, bool state) {
 	return retval;
 }
 
-static void _gpio_output_init(us_gpio_output_s *output) {
-	assert(us_g_gpio.chip != NULL);
+static void _gpio_output_init(us_gpio_output_s *output, struct gpiod_chip *chip) {
 	assert(output->line == NULL);
 
 	US_ASPRINTF(output->consumer, "%s::%s", us_g_gpio.consumer_prefix, output->role);
 
 	if (output->pin >= 0) {
-		if ((output->line = gpiod_chip_get_line(us_g_gpio.chip, output->pin)) != NULL) {
+#		ifdef HAVE_GPIOD2
+		struct gpiod_line_settings *line_settings;
+		assert(line_settings = gpiod_line_settings_new());
+		assert(!gpiod_line_settings_set_direction(line_settings, GPIOD_LINE_DIRECTION_OUTPUT));
+		assert(!gpiod_line_settings_set_output_value(line_settings, false));
+
+		struct gpiod_line_config *line_config;
+		assert(line_config = gpiod_line_config_new());
+		const unsigned offset = output->pin;
+		assert(!gpiod_line_config_add_line_settings(line_config, &offset, 1, line_settings));
+
+		struct gpiod_request_config *request_config;
+		assert(request_config = gpiod_request_config_new());
+		gpiod_request_config_set_consumer(request_config, output->consumer);
+
+		if ((output->line = gpiod_chip_request_lines(chip, request_config, line_config)) == NULL) {
+			US_LOG_PERROR("GPIO: Can't request pin=%d as %s", output->pin, output->consumer);
+		}
+
+		gpiod_request_config_free(request_config);
+		gpiod_line_config_free(line_config);
+		gpiod_line_settings_free(line_settings);
+
+		if (output->line == NULL) {
+			_gpio_output_destroy(output);
+		}
+
+#		else
+
+		if ((output->line = gpiod_chip_get_line(chip, output->pin)) != NULL) {
 			if (gpiod_line_request_output(output->line, output->consumer, 0) < 0) {
 				US_LOG_PERROR("GPIO: Can't request pin=%d as %s", output->pin, output->consumer);
 				_gpio_output_destroy(output);
@@ -113,12 +159,17 @@ static void _gpio_output_init(us_gpio_output_s *output) {
 		} else {
 			US_LOG_PERROR("GPIO: Can't get pin=%d as %s", output->pin, output->consumer);
 		}
+#		endif
 	}
 }
 
 static void _gpio_output_destroy(us_gpio_output_s *output) {
 	if (output->line != NULL) {
+#		ifdef HAVE_GPIOD2
+		gpiod_line_request_release(output->line);
+#		else
 		gpiod_line_release(output->line);
+#		endif
 		output->line = NULL;
 	}
 	if (output->consumer != NULL) {

src/ustreamer/gpio/gpio.h

@@ -36,11 +36,15 @@
 
 
 typedef struct {
-	int					pin;
-	const char			*role;
-	char 				*consumer;
-	struct gpiod_line	*line;
-	bool				state;
+	int							pin;
+	const char					*role;
+	char 						*consumer;
+#	ifdef HAVE_GPIOD2
+	struct gpiod_line_request	*line;
+#	else
+	struct gpiod_line			*line;
+#	endif
+	bool						state;
 } us_gpio_output_s;
 
 typedef struct {
@@ -52,7 +56,11 @@ typedef struct {
 	us_gpio_output_s	has_http_clients;
 
 	pthread_mutex_t		mutex;
+
+#	ifndef HAVE_GPIOD2
 	struct gpiod_chip	*chip;
+#	endif
+	bool				initialized;
 } us_gpio_s;
 
 

src/ustreamer/m2m.c

@@ -441,7 +441,14 @@ static int _m2m_encoder_compress_raw(us_m2m_encoder_s *enc, const us_frame_s *sr
 	// Для не-DMA отправка буфера по факту являтся освобождением этого буфера
 	bool input_released = !_RUN(dma);
 
+	const long double deadline_ts = us_get_now_monotonic() + 1;
+
 	while (true) {
+		if (us_get_now_monotonic() > deadline_ts) {
+			_E_LOG_ERROR("The encoder wait is too long");
+			goto error;
+		}
+
 		struct pollfd enc_poll = {_RUN(fd), POLLIN, 0};
 
 		_E_LOG_DEBUG("Polling encoder ...");