// Copyright 2021 The Gitea Authors. All rights reserved.// SPDX-License-Identifier: MITpackage processimport ( "context")// Context is a wrapper around context.Context and contains the current pid for this contexttype Context struct { context.Context pid IDType}// GetPID returns the PID for this contextfunc (c *Context) GetPID() IDType { return c.pid}// GetParent returns the parent process context (if any)func (c *Context) GetParent() *Context { return GetContext(c.Context)}// Value is part of the interface for context.Context. We mostly defer to the internal context - but we return this in response to the ProcessContextKeyfunc (c *Context) Value(key any) any { if key == ProcessContextKey { return c } return c.Context.Value(key)}// ProcessContextKey is the key under which process contexts are storedvar ProcessContextKey any = "process-context"// GetContext will return a process context if one existsfunc GetContext(ctx context.Context) *Context { if pCtx, ok := ctx.(*Context); ok { return pCtx } pCtxInterface := ctx.Value(ProcessContextKey) if pCtxInterface == nil { return nil } if pCtx, ok := pCtxInterface.(*Context); ok { return pCtx } return nil}// GetPID returns the PID for this contextfunc GetPID(ctx context.Context) IDType { pCtx := GetContext(ctx) if pCtx == nil { return "" } return pCtx.GetPID()}// GetParentPID returns the ParentPID for this contextfunc GetParentPID(ctx context.Context) IDType { var parentPID IDType if parentProcess := GetContext(ctx); parentProcess != nil { parentPID = parentProcess.GetPID() } return parentPID}
// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package process
import (
"context"
)
// Context is a wrapper around context.Context and contains the current pid for this context
type Context struct {
context.Context
pid IDType
}
// GetPID returns the PID for this context
func (c *Context) GetPID() IDType {
return c.pid
}
// GetParent returns the parent process context (if any)
func (c *Context) GetParent() *Context {
return GetContext(c.Context)
}
// Value is part of the interface for context.Context. We mostly defer to the internal context - but we return this in response to the ProcessContextKey
func (c *Context) Value(key any) any {
if key == ProcessContextKey {
return c
}
return c.Context.Value(key)
}
// ProcessContextKey is the key under which process contexts are stored
var ProcessContextKey any = "process-context"
// GetContext will return a process context if one exists
func GetContext(ctx context.Context) *Context {
if pCtx, ok := ctx.(*Context); ok {
return pCtx
}
pCtxInterface := ctx.Value(ProcessContextKey)
if pCtxInterface == nil {
return nil
}
if pCtx, ok := pCtxInterface.(*Context); ok {
return pCtx
}
return nil
}
// GetPID returns the PID for this context
func GetPID(ctx context.Context) IDType {
pCtx := GetContext(ctx)
if pCtx == nil {
return ""
}
return pCtx.GetPID()
}
// GetParentPID returns the ParentPID for this context
func GetParentPID(ctx context.Context) IDType {
var parentPID IDType
if parentProcess := GetContext(ctx); parentProcess != nil {
parentPID = parentProcess.GetPID()
}
return parentPID
}