dc34e7c6f6
This commit provides a complete reimplementation of the work queue infrastructure intended to eliminate the race conditions and feature gaps in the existing implementation. Both bare and delayable work structures are supported. Items can be submitted; delayable items can be scheduled for submission at a future time. Items can be delayed, queued, and running all at the same time. A running item can also be canceling. The new implementation: * replaces "pending" with "busy" which identifies the active states; * supports canceling delayed and submitted items; * prevents resubmission of a item being canceled until cancellation completes; * supports waiting for cancellation to complete; * supports flushing a work item (waiting for the last submission to complete without preventing resubmission); * supports waiting for a queue to drain (only allows resubmission from the work thread); * supports stopping a work queue in conjunction with draining it; * prevents handler-reentrancy during resubmission. Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
85 lines
2 KiB
CMake
85 lines
2 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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# kernel is a normal CMake library and not a zephyr_library because it
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# should not be --whole-archive'd
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list(APPEND kernel_files
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device.c
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errno.c
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fatal.c
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idle.c
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init.c
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kheap.c
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mailbox.c
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mem_slab.c
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msg_q.c
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mutex.c
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pipes.c
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queue.c
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sched.c
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sem.c
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stack.c
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system_work_q.c
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thread.c
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version.c
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condvar.c
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smp.c
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banner.c
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)
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if(CONFIG_XIP)
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list(APPEND kernel_files
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xip.c)
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endif()
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add_library(kernel ${kernel_files})
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# Kernel files has the macro __ZEPHYR_SUPERVISOR__ set so that it
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# optimizes the code when userspace is enabled.
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set_target_properties(
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kernel
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PROPERTIES
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COMPILE_DEFINITIONS
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__ZEPHYR_SUPERVISOR__
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)
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target_sources_ifdef(CONFIG_KERNEL_WORK1 kernel PRIVATE work_q.c)
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target_sources_ifdef(CONFIG_KERNEL_WORK2 kernel PRIVATE work.c)
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target_sources_ifdef(CONFIG_STACK_CANARIES kernel PRIVATE compiler_stack_protect.c)
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target_sources_ifdef(CONFIG_SYS_CLOCK_EXISTS kernel PRIVATE timeout.c timer.c)
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target_sources_ifdef(CONFIG_ATOMIC_OPERATIONS_C kernel PRIVATE atomic_c.c)
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target_sources_ifdef(CONFIG_MMU kernel PRIVATE mmu.c)
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target_sources_ifdef(CONFIG_POLL kernel PRIVATE poll.c)
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if(${CONFIG_KERNEL_MEM_POOL})
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target_sources(kernel PRIVATE mempool.c)
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endif()
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if(NOT CONFIG_MULTITHREADING)
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message(WARNING "Single threaded mode (CONFIG_MULTITHREADING=n) is deprecated")
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endif()
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# The last 2 files inside the target_sources_ifdef should be
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# userspace_handler.c and userspace.c. If not the linker would complain.
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# This order has to be maintained. Any new file should be placed
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# above these 2 files.
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target_sources_ifdef(
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CONFIG_USERSPACE
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kernel PRIVATE
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futex.c
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mem_domain.c
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cache_handlers.c
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userspace_handler.c
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userspace.c
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)
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target_include_directories(kernel PRIVATE
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${ZEPHYR_BASE}/kernel/include
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${ARCH_DIR}/${ARCH}/include
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)
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add_dependencies(kernel zephyr_generated_headers)
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target_link_libraries(kernel zephyr_interface)
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