mirror of
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309 lines
8.9 KiB
Go
309 lines
8.9 KiB
Go
package rpc2
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import (
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"fmt"
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"log"
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"net/rpc"
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"net/rpc/jsonrpc"
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"time"
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"github.com/derekparker/delve/service"
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"github.com/derekparker/delve/service/api"
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)
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// Client is a RPC service.Client.
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type RPCClient struct {
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addr string
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processPid int
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client *rpc.Client
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}
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// Ensure the implementation satisfies the interface.
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var _ service.Client = &RPCClient{}
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// NewClient creates a new RPCClient.
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func NewClient(addr string) *RPCClient {
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client, err := jsonrpc.Dial("tcp", addr)
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if err != nil {
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log.Fatal("dialing:", err)
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}
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c := &RPCClient{addr: addr, client: client}
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c.call("SetApiVersion", api.SetAPIVersionIn{2}, &api.SetAPIVersionOut{})
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return c
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}
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func (c *RPCClient) ProcessPid() int {
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out := new(ProcessPidOut)
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c.call("ProcessPid", ProcessPidIn{}, out)
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return out.Pid
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}
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func (c *RPCClient) LastModified() time.Time {
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out := new(LastModifiedOut)
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c.call("LastModified", LastModifiedIn{}, out)
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return out.Time
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}
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func (c *RPCClient) Detach(kill bool) error {
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out := new(DetachOut)
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return c.call("Detach", DetachIn{kill}, out)
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}
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func (c *RPCClient) Restart() ([]api.DiscardedBreakpoint, error) {
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out := new(RestartOut)
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err := c.call("Restart", RestartIn{}, out)
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return out.DiscardedBreakpoints, err
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}
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func (c *RPCClient) GetState() (*api.DebuggerState, error) {
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var out StateOut
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err := c.call("State", StateIn{}, &out)
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return out.State, err
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}
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func (c *RPCClient) Continue() <-chan *api.DebuggerState {
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ch := make(chan *api.DebuggerState)
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go func() {
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for {
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out := new(CommandOut)
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err := c.call("Command", &api.DebuggerCommand{Name: api.Continue}, &out)
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state := out.State
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if err != nil {
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state.Err = err
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}
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if state.Exited {
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// Error types apparantly cannot be marshalled by Go correctly. Must reset error here.
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state.Err = fmt.Errorf("Process %d has exited with status %d", c.ProcessPid(), state.ExitStatus)
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}
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ch <- &state
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if err != nil || state.Exited {
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close(ch)
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return
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}
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isbreakpoint := false
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istracepoint := true
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for i := range state.Threads {
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if state.Threads[i].Breakpoint != nil {
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isbreakpoint = true
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istracepoint = istracepoint && state.Threads[i].Breakpoint.Tracepoint
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}
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}
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if !isbreakpoint || !istracepoint {
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close(ch)
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return
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}
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}
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}()
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return ch
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}
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func (c *RPCClient) Next() (*api.DebuggerState, error) {
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var out CommandOut
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err := c.call("Command", api.DebuggerCommand{Name: api.Next}, &out)
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return &out.State, err
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}
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func (c *RPCClient) Step() (*api.DebuggerState, error) {
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var out CommandOut
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err := c.call("Command", api.DebuggerCommand{Name: api.Step}, &out)
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return &out.State, err
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}
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func (c *RPCClient) StepOut() (*api.DebuggerState, error) {
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var out CommandOut
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err := c.call("Command", &api.DebuggerCommand{Name: api.StepOut}, &out)
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return &out.State, err
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}
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func (c *RPCClient) StepInstruction() (*api.DebuggerState, error) {
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var out CommandOut
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err := c.call("Command", api.DebuggerCommand{Name: api.StepInstruction}, &out)
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return &out.State, err
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}
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func (c *RPCClient) SwitchThread(threadID int) (*api.DebuggerState, error) {
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var out CommandOut
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cmd := api.DebuggerCommand{
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Name: api.SwitchThread,
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ThreadID: threadID,
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}
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err := c.call("Command", cmd, &out)
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return &out.State, err
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}
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func (c *RPCClient) SwitchGoroutine(goroutineID int) (*api.DebuggerState, error) {
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var out CommandOut
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cmd := api.DebuggerCommand{
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Name: api.SwitchGoroutine,
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GoroutineID: goroutineID,
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}
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err := c.call("Command", cmd, &out)
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return &out.State, err
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}
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func (c *RPCClient) Halt() (*api.DebuggerState, error) {
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var out CommandOut
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err := c.call("Command", api.DebuggerCommand{Name: api.Halt}, &out)
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return &out.State, err
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}
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func (c *RPCClient) GetBreakpoint(id int) (*api.Breakpoint, error) {
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var out GetBreakpointOut
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err := c.call("GetBreakpoint", GetBreakpointIn{id, ""}, &out)
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return &out.Breakpoint, err
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}
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func (c *RPCClient) GetBreakpointByName(name string) (*api.Breakpoint, error) {
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var out GetBreakpointOut
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err := c.call("GetBreakpoint", GetBreakpointIn{0, name}, &out)
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return &out.Breakpoint, err
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}
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func (c *RPCClient) CreateBreakpoint(breakPoint *api.Breakpoint) (*api.Breakpoint, error) {
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var out CreateBreakpointOut
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err := c.call("CreateBreakpoint", CreateBreakpointIn{*breakPoint}, &out)
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return &out.Breakpoint, err
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}
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func (c *RPCClient) ListBreakpoints() ([]*api.Breakpoint, error) {
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var out ListBreakpointsOut
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err := c.call("ListBreakpoints", ListBreakpointsIn{}, &out)
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return out.Breakpoints, err
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}
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func (c *RPCClient) ClearBreakpoint(id int) (*api.Breakpoint, error) {
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var out ClearBreakpointOut
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err := c.call("ClearBreakpoint", ClearBreakpointIn{id, ""}, &out)
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return out.Breakpoint, err
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}
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func (c *RPCClient) ClearBreakpointByName(name string) (*api.Breakpoint, error) {
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var out ClearBreakpointOut
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err := c.call("ClearBreakpoint", ClearBreakpointIn{0, name}, &out)
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return out.Breakpoint, err
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}
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func (c *RPCClient) AmendBreakpoint(bp *api.Breakpoint) error {
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out := new(AmendBreakpointOut)
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err := c.call("AmendBreakpoint", AmendBreakpointIn{*bp}, out)
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return err
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}
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func (c *RPCClient) CancelNext() error {
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var out CancelNextOut
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return c.call("CancelNext", CancelNextIn{}, &out)
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}
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func (c *RPCClient) ListThreads() ([]*api.Thread, error) {
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var out ListThreadsOut
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err := c.call("ListThreads", ListThreadsIn{}, &out)
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return out.Threads, err
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}
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func (c *RPCClient) GetThread(id int) (*api.Thread, error) {
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var out GetThreadOut
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err := c.call("GetThread", GetThreadIn{id}, &out)
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return out.Thread, err
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}
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func (c *RPCClient) EvalVariable(scope api.EvalScope, expr string, cfg api.LoadConfig) (*api.Variable, error) {
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var out EvalOut
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err := c.call("Eval", EvalIn{scope, expr, &cfg}, &out)
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return out.Variable, err
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}
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func (c *RPCClient) SetVariable(scope api.EvalScope, symbol, value string) error {
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out := new(SetOut)
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return c.call("Set", SetIn{scope, symbol, value}, out)
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}
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func (c *RPCClient) ListSources(filter string) ([]string, error) {
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sources := new(ListSourcesOut)
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err := c.call("ListSources", ListSourcesIn{filter}, sources)
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return sources.Sources, err
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}
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func (c *RPCClient) ListFunctions(filter string) ([]string, error) {
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funcs := new(ListFunctionsOut)
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err := c.call("ListFunctions", ListFunctionsIn{filter}, funcs)
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return funcs.Funcs, err
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}
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func (c *RPCClient) ListTypes(filter string) ([]string, error) {
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types := new(ListTypesOut)
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err := c.call("ListTypes", ListTypesIn{filter}, types)
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return types.Types, err
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}
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func (c *RPCClient) ListPackageVariables(filter string, cfg api.LoadConfig) ([]api.Variable, error) {
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var out ListPackageVarsOut
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err := c.call("ListPackageVars", ListPackageVarsIn{filter, cfg}, &out)
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return out.Variables, err
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}
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func (c *RPCClient) ListLocalVariables(scope api.EvalScope, cfg api.LoadConfig) ([]api.Variable, error) {
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var out ListLocalVarsOut
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err := c.call("ListLocalVars", ListLocalVarsIn{scope, cfg}, &out)
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return out.Variables, err
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}
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func (c *RPCClient) ListRegisters(threadID int, includeFp bool) (api.Registers, error) {
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out := new(ListRegistersOut)
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err := c.call("ListRegisters", ListRegistersIn{ThreadID: threadID, IncludeFp: includeFp}, out)
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return out.Regs, err
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}
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func (c *RPCClient) ListFunctionArgs(scope api.EvalScope, cfg api.LoadConfig) ([]api.Variable, error) {
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var out ListFunctionArgsOut
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err := c.call("ListFunctionArgs", ListFunctionArgsIn{scope, cfg}, &out)
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return out.Args, err
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}
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func (c *RPCClient) ListGoroutines() ([]*api.Goroutine, error) {
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var out ListGoroutinesOut
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err := c.call("ListGoroutines", ListGoroutinesIn{}, &out)
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return out.Goroutines, err
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}
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func (c *RPCClient) Stacktrace(goroutineId, depth int, cfg *api.LoadConfig) ([]api.Stackframe, error) {
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var out StacktraceOut
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err := c.call("Stacktrace", StacktraceIn{goroutineId, depth, false, cfg}, &out)
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return out.Locations, err
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}
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func (c *RPCClient) AttachedToExistingProcess() bool {
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out := new(AttachedToExistingProcessOut)
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c.call("AttachedToExistingProcess", AttachedToExistingProcessIn{}, out)
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return out.Answer
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}
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func (c *RPCClient) FindLocation(scope api.EvalScope, loc string) ([]api.Location, error) {
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var out FindLocationOut
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err := c.call("FindLocation", FindLocationIn{scope, loc}, &out)
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return out.Locations, err
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}
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// Disassemble code between startPC and endPC
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func (c *RPCClient) DisassembleRange(scope api.EvalScope, startPC, endPC uint64, flavour api.AssemblyFlavour) (api.AsmInstructions, error) {
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var out DisassembleOut
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err := c.call("Disassemble", DisassembleIn{scope, startPC, endPC, flavour}, &out)
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return out.Disassemble, err
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}
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// Disassemble function containing pc
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func (c *RPCClient) DisassemblePC(scope api.EvalScope, pc uint64, flavour api.AssemblyFlavour) (api.AsmInstructions, error) {
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var out DisassembleOut
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err := c.call("Disassemble", DisassembleIn{scope, pc, 0, flavour}, &out)
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return out.Disassemble, err
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}
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func (c *RPCClient) url(path string) string {
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return fmt.Sprintf("http://%s%s", c.addr, path)
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}
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func (c *RPCClient) call(method string, args, reply interface{}) error {
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return c.client.Call("RPCServer."+method, args, reply)
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}
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