aa6abc5ed6
* dws event * fix consume fail * test: add stream ticket injection probe * feat: add portal ticket stream mode * user event * fix: allow portal ticket normal without app secret * event * user event * eventType filter * refactor(event): 优化IPC端点路径处理和改进相关测试 - 用dwsevent.IPCEndpoint替代原先根据GOOS判断的路径逻辑 - 新增event包实现Unix socket路径长度限制及长路径fallback机制 - 添加endpoint_test.go覆盖路径短长及唯一性的单元测试 - 修改busctl模块使用统一的IPC端点获取方法，避免重复实现 - transport_unix.go新增checkSocketPath函数检查路径长度，防止EINVAL错误 - 在监听和连接Unix socket时加入路径限制检查，提升错误明晰度 - 去除多个文件中无用的runtime导入，简化代码依赖 * opt * event skill * default value * install script event * fix: remove subscribe id event fanout filter * fix(personal): 修正指定发送人消息描述错误 * more im event * filter subId * fix: align personal event schema with stream payload * fix: avoid duplicate app helper name * feat: simplify personal event schemas * feat: simplify event schema output * docs: refine dingtalk event skill references * feat: align personal event consume flags * fix event stop and status visibility * hide app event public entrypoints * hide incomplete personal sender event * remove external event reference comments * chore(event): prepare official release * fix(event): harden personal stream lifecycle --------- Co-authored-by: 玉澜 <yulan.wqy@alibaba-inc.com> Co-authored-by: zhengyubai <zhengyubai618@gmail.com>
53 lines
1.6 KiB
Go
53 lines
1.6 KiB
Go
// Copyright 2026 Alibaba Group
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !windows
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package process
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import (
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"errors"
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"syscall"
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)
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// Alive reports whether a process with the given PID is currently running.
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// Returns false for non-positive PIDs without performing any syscall.
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//
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// On Unix this uses signal 0 (syscall.Kill(pid, 0)), which performs the
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// normal permission/existence check without delivering a signal:
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// - nil error → process exists and we have permission
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// - syscall.EPERM → process exists but owned by another user
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// (still counts as alive for our purpose)
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// - syscall.ESRCH → no such process
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//
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// Any other error is treated as "alive" defensively, so we never steal a
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// lock based on an ambiguous syscall failure.
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func Alive(pid int) bool {
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if pid <= 0 {
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return false
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}
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err := syscall.Kill(pid, 0)
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if err == nil {
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return true
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}
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if errors.Is(err, syscall.EPERM) {
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// Process exists, we just can't signal it.
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return true
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}
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if errors.Is(err, syscall.ESRCH) {
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return false
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}
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// Unknown error: be conservative, treat as alive.
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return true
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}
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