- services/framecache/: new standalone container
- slot.h/slot.c: shm ring buffer (120 frames, FC_MAGIC header, atomic
write_cursor, POSIX semaphore per slot)
- registry.h/registry.c: in-memory slot registry + /dev/shm/framecache/
registry.json persistence
- framecache.c: HTTP API server (libmicrohttpd, port 7435)
POST /slots, GET /slots, GET /slots/:id, DELETE /slots/:id, GET /health
- fc_client.h/fc_client.c: consumer library — fc_consumer_open/read/close
with per-consumer cursor, timeout via sem_timedwait, automatic skip+count
when consumer falls behind writer by > ring_depth frames
- fc_test_consumer.c: dev utility to attach to any slot and print fps/stats
- CMakeLists.txt: framecache server + fc_client static lib + test consumer
- Dockerfile: builder + slim runtime stages
- docker-compose.worker.yml: add framecache service (profile: capture,
ipc: host, shm_size from FC_SHM_SIZE_GB env var, healthcheck)
- .env.example: document FC_SHM_SIZE_GB with per-node guidance
39 lines
1.6 KiB
CMake
39 lines
1.6 KiB
CMake
cmake_minimum_required(VERSION 3.16)
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project(framecache C)
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set(CMAKE_C_STANDARD 11)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -O2")
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# ── libmicrohttpd ────────────────────────────────────────────────────
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find_library(MHD_LIB microhttpd REQUIRED)
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find_path(MHD_INCLUDE microhttpd.h REQUIRED)
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include_directories(${MHD_INCLUDE})
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# ── framecache server ────────────────────────────────────────────────
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add_executable(framecache
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src/framecache.c
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src/slot.c
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src/registry.c
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)
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target_link_libraries(framecache ${MHD_LIB} rt pthread)
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# ── fc_client static library (used by bridges + test) ───────────────
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add_library(fc_client STATIC
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client/fc_client.c
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src/slot.c # client needs fc_slot_shm_size / fc_frame_at
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)
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target_include_directories(fc_client PUBLIC src client)
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target_link_libraries(fc_client rt pthread)
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# ── test consumer (dev utility) ──────────────────────────────────────
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if(BUILD_TESTS)
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add_executable(fc_test_consumer
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client/fc_test_consumer.c
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)
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target_link_libraries(fc_test_consumer fc_client)
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target_include_directories(fc_test_consumer PRIVATE src client)
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endif()
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install(TARGETS framecache DESTINATION bin)
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install(FILES client/fc_client.h src/slot.h DESTINATION include/framecache)
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install(TARGETS fc_client DESTINATION lib)
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