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project('EMPER', 'c', 'cpp',
		version: '0.0.1-alpha1-SNAPSHOT',
		default_options : [
		  'warning_level=3',
		  'c_std=gnu11',
		  'cpp_std=c++2a',
		  'b_ndebug=if-release',
		  'werror=true',
		])

thread_dep = dependency('threads')
uring_dep = dependency('liburing')
emper_dependencies = [thread_dep, uring_dep]
boost_thread_dep = dependency('boost', modules : ['thread'], required: false)

tools_dir = join_paths(meson.source_root(), 'tools')

		   command: join_paths(tools_dir, 'check-iwyu'))
conf_data = configuration_data()
option_urcu = get_option('userspace_rcu')
conf_data.set('EMPER_LIBURCU', option_urcu)
if option_urcu
	liburcu_dep = dependency('liburcu')
	emper_dependencies += [liburcu_dep]
endif

cpp_compiler = meson.get_compiler('cpp')
if cpp_compiler.has_header('compare')
  conf_data.set('EMPER_HAS_COMPARE_H', true)
endif

conf_data.set('EMPER_WORKER_SLEEP', get_option('worker_sleep'))
conf_data.set('EMPER_WORKER_WAKEUP_STRATEGY', get_option('worker_wakeup_strategy'))
conf_data.set('EMPER_LOCKED_WS_QUEUE', get_option('locked_ws_queue'))
conf_data.set('EMPER_LOCKED_MPSC_QUEUE', get_option('locked_mpsc_queue'))
conf_data.set('EMPER_OVERFLOW_QUEUE', get_option('overflow_queue'))
conf_data.set('EMPER_STATS', get_option('stats'))
conf_data.set('EMPER_OVERFLOW_QUEUE', get_option('overflow_queue'))
conf_data.set('EMPER_BLOCKED_CONTEXT_SET', get_option('blocked_context_set'))
semaphore_impl = get_option('wakeup_semaphore_implementation')
conf_data.set('EMPER_' + semaphore_impl.to_upper() + '_WAKEUP_SEMAPHORE', true)

locked_unbounded_queue_impl = get_option('locked_unbounded_queue_implementation')
if locked_unbounded_queue_impl == 'boost_shared_mutex'
	if not boost_thread_dep.found()
		error('Boost thread module not found, but locked_unbounded_queue_implementation set to boost_shared_mutex')
	endif
	emper_dependencies += [boost_thread_dep]
endif
conf_data.set('EMPER_' + locked_unbounded_queue_impl.to_upper() + '_LOCKED_UNBOUNDED_QUEUE', true)

default_scheduling_strategy = get_option('default_scheduling_strategy')
conf_data.set('EMPER_DEFAULT_SCHEDULING_STRATEGY_' + default_scheduling_strategy.to_upper(), true)

log_level = get_option('log_level')
if log_level == 'automatic'
	# output only error messages in release builds
	log_level = get_option('debug') ? 'ALL' : 'Info'
endif
conf_data.set('EMPER_LOG_LEVEL', log_level)
conf_data.set('EMPER_LOG_TIMESTAMP', get_option('log_timestamp'))
option_io =  get_option('io')
if option_io
	conf_data.set('EMPER_IO', true)
endif

io_bool_options = [
	'uring_sqpoll',
]

io_raw_options = [
	'worker_uring_entries',
]

foreach option : io_bool_options
	value = get_option('io_' + option)
	if value == true and not option_io
		error('io_' + option + ' defined without io')
	endif
	conf_data.set('EMPER_IO_' + option.to_upper(), value)
endforeach

foreach option : io_raw_options
	conf_data.set('EMPER_IO_' + option.to_upper(), get_option('io_' + option))
endforeach

io_cq_lock_impl = get_option('io_cq_lock_implementation')
conf_data.set('EMPER_IO_CQ_LOCK_' + io_cq_lock_impl.to_upper(), true)

subdir('emper')
subdir('tests')
subdir('apps')
subdir('eval')
subdir('doc')