Rongsong Shen
6dd70f1091
Design constraint (tech.md "Process Creation"): the controller, scheduler,
xcecd and anything that starts libxce threads never call fork, vfork,
forkpty, daemon, system, popen or uv_spawn; children start with posix_spawn()
or a systemd unit. A process proven single-threaded may fork, marked
/* xce-fork-ok: <why> */. Tests, harness, autoscaler (not finalized; bug-1969)
and the Go frontend are out of scope.
- scripts/check-no-fork.py scans src/{controller,scheduler,lib,worker}
(comment/string/#if 0 aware); runs as meson test "no-fork rule" in the
lib/controller/scheduler/worker suites and in the pre-commit hook.
- worker: drop xcecd's unused fork-based worker start paths
(process_manager_start_process, process_manager_start_worker; xcecd
starts xcecd_worker over D-Bus) and a dead #if 0 daemonize fork.
- xcecd_worker's fork/uv_spawn/system calls are marked: its call graph
from main(), callbacks included, reaches no pthread_create or libuv
thread-pool call.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
100 lines
3 KiB
Meson
100 lines
3 KiB
Meson
project('xce',
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['c'],
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version: '0.0.1',
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meson_version: '>=1.5',
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default_options: [
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'c_std=gnu17'])
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component = get_option('component')
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with_debug = false
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if get_option('buildtype') == 'debug'
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# add -DWITH_DEBUG=1
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add_project_arguments(['-DWITH_DEBUG=1',
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'-DDEBUG',
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'-O0',
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'-fno-lto',
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'-Wno-cpp',
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'-fno-inline',
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'-fno-omit-frame-pointer',
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'-ggdb',
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'-gdwarf-4',
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'-g3',
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'-fvar-tracking',
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'-fvar-tracking-assignments',
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], language: ['c', 'cpp'])
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add_project_link_arguments('-fno-lto', language: ['c', 'cpp'])
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with_debug = true
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endif
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add_project_arguments(['-DVERSION_COMMIT_ID='+get_option('commit_id'),
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'-DVERSION_BUILD_TIME='+get_option('build_time'),
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'-DVERSION_DIRTY_FINGERPRINT='+get_option('dirty_fingerprint')], language: 'c')
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# Programs needed by all components
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go_compiler = find_program('go')
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go_build = files('tools/go_build')
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go_build_program = find_program('go_build', go_build)
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env_program = find_program('env')
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if component != 'xcecli'
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c_compiler_id = meson.get_compiler('c').get_id()
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if c_compiler_id == 'gcc' or c_compiler_id == 'clang'
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wrap_link_args = ['-Wl,--wrap=printf', '-Wl,--wrap=perror']
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else
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wrap_link_args = []
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endif
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pkgconfig = find_program('pkg-config')
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include_dir = include_directories('include', 'include/xce')
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cc = meson.get_compiler('c')
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math_dep = cc.find_library('m', required: false)
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rt_dep = cc.find_library('rt', required: false)
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struct2json_dep = dependency('struct2json')
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libcyaml_dep = dependency('libcyaml')
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libyaml_dep = dependency('yaml-0.1')
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libtirpc_dep = dependency('libtirpc')
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librtti_dep = dependency('librtti')
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yaml_deps = [
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libcyaml_dep,
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libyaml_dep
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]
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subdir('lib')
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subdir('harness')
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subdir('controller')
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subdir('worker')
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subdir('autoscaler')
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subdir('scheduler')
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subdir('frontend/apiserver')
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subdir('xceadmin')
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# No-fork rule (.kiro/steering/tech.md, "Process creation"): fails if a
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# covered component's C code calls fork()/system()/popen()/uv_spawn()
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# outside a call marked xce-fork-ok. In each covered suite, so
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# `xce-build.sh <component>` runs it too.
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test('no-fork rule',
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find_program('python3'),
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args: [meson.project_source_root() / '..' / 'scripts' / 'check-no-fork.py',
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meson.project_source_root() / '..'],
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suite: ['lib', 'controller', 'scheduler', 'worker'])
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configure_file(
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input: 'tools/appimage/entry.sh',
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output: 'xce',
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copy: true,
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install: true,
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install_dir: 'bin',
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install_mode: 'rwxr-xr-x'
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)
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install_data('docs/xce.md',
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install_dir: 'share/docs')
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endif
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if component != 'xcecore'
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subdir('frontend/xcecli')
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endif
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