mikael-lovqvists-claude-agent/video-setup
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Add discovery module: UDP multicast announcements and peer tracking

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Sends 6-byte framed announcements to 224.0.0.251:5353 on startup and
every interval_ms (default 5s). Receive thread maintains a peer table
(max 64 entries); fires on_peer_found for new peers, on_peer_lost when
a peer misses timeout_intervals (default 3) consecutive intervals.

Own announcements are filtered by name+site_id. SO_REUSEADDR+REUSEPORT
allows multiple processes on the same host for testing.

discovery_cli: announce <name> <tcp_port> [flags] — prints found/lost events.

Also notes future config module in planning.md.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
mikael-lovqvists-claude-agent
2026-03-26 22:19:56 +00:00
parent 744e374531
commit fe350e531e
6 changed files with 527 additions and 17 deletions
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23
dev/cli/Makefile
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@@ -1,19 +1,21 @@
ROOT := $(abspath ../..)
include $(ROOT)/common.mk
CLI_BUILD = $(BUILD)/cli
COMMON_OBJ = $(BUILD)/common/error.o
MEDIA_CTRL_OBJ = $(BUILD)/media_ctrl/media_ctrl.o
V4L2_CTRL_OBJ = $(BUILD)/v4l2_ctrl/v4l2_ctrl.o
SERIAL_OBJ = $(BUILD)/serial/serial.o
TRANSPORT_OBJ = $(BUILD)/transport/transport.o
CLI_BUILD = $(BUILD)/cli
COMMON_OBJ = $(BUILD)/common/error.o
MEDIA_CTRL_OBJ = $(BUILD)/media_ctrl/media_ctrl.o
V4L2_CTRL_OBJ = $(BUILD)/v4l2_ctrl/v4l2_ctrl.o
SERIAL_OBJ = $(BUILD)/serial/serial.o
TRANSPORT_OBJ = $(BUILD)/transport/transport.o
DISCOVERY_OBJ = $(BUILD)/discovery/discovery.o
.PHONY: all clean modules
all: modules \
$(CLI_BUILD)/media_ctrl_cli \
$(CLI_BUILD)/v4l2_ctrl_cli \
$(CLI_BUILD)/transport_cli
$(CLI_BUILD)/transport_cli \
$(CLI_BUILD)/discovery_cli
modules:
$(MAKE) -C $(ROOT)/src/modules/common
@@ -21,6 +23,7 @@ modules:
$(MAKE) -C $(ROOT)/src/modules/v4l2_ctrl
$(MAKE) -C $(ROOT)/src/modules/serial
$(MAKE) -C $(ROOT)/src/modules/transport
$(MAKE) -C $(ROOT)/src/modules/discovery
$(CLI_BUILD)/media_ctrl_cli: media_ctrl_cli.c $(COMMON_OBJ) $(MEDIA_CTRL_OBJ) | $(CLI_BUILD)
$(CC) $(CFLAGS) -o $@ $^
@@ -31,6 +34,9 @@ $(CLI_BUILD)/v4l2_ctrl_cli: v4l2_ctrl_cli.c $(COMMON_OBJ) $(V4L2_CTRL_OBJ) | $(C
$(CLI_BUILD)/transport_cli: transport_cli.c $(COMMON_OBJ) $(SERIAL_OBJ) $(TRANSPORT_OBJ) | $(CLI_BUILD)
$(CC) $(CFLAGS) -o $@ $^ -lpthread
$(CLI_BUILD)/discovery_cli: discovery_cli.c $(COMMON_OBJ) $(SERIAL_OBJ) $(DISCOVERY_OBJ) | $(CLI_BUILD)
$(CC) $(CFLAGS) -o $@ $^ -lpthread
$(CLI_BUILD):
mkdir -p $@
@@ -38,4 +44,5 @@ clean:
rm -f \
$(CLI_BUILD)/media_ctrl_cli \
$(CLI_BUILD)/v4l2_ctrl_cli \
$(CLI_BUILD)/transport_cli
$(CLI_BUILD)/transport_cli \
$(CLI_BUILD)/discovery_cli