Update vendor folder (support for Delve RPC)

vendor/github.com/derekparker/delve/service/rpc1/client.go

@@ -0,0 +1,312 @@
+package rpc1
+
+import (
+	"errors"
+	"fmt"
+	"log"
+	"net/rpc"
+	"net/rpc/jsonrpc"
+
+	"sync"
+
+	"github.com/derekparker/delve/service/api"
+)
+
+// Client is a RPC service.Client.
+type RPCClient struct {
+	addr       string
+	processPid int
+	client     *rpc.Client
+	haltMu     sync.Mutex
+	haltReq    bool
+}
+
+var unsupportedApiError = errors.New("unsupported")
+
+// NewClient creates a new RPCClient.
+func NewClient(addr string) *RPCClient {
+	client, err := jsonrpc.Dial("tcp", addr)
+	if err != nil {
+		log.Fatal("dialing:", err)
+	}
+	return &RPCClient{
+		addr:   addr,
+		client: client,
+	}
+}
+
+func (c *RPCClient) ProcessPid() int {
+	var pid int
+	c.call("ProcessPid", nil, &pid)
+	return pid
+}
+
+func (c *RPCClient) Detach(kill bool) error {
+	return c.call("Detach", kill, nil)
+}
+
+func (c *RPCClient) Restart() error {
+	return c.call("Restart", nil, nil)
+}
+
+func (c *RPCClient) GetState() (*api.DebuggerState, error) {
+	state := new(api.DebuggerState)
+	err := c.call("State", nil, state)
+	return state, err
+}
+
+func (c *RPCClient) Continue() <-chan *api.DebuggerState {
+	ch := make(chan *api.DebuggerState)
+	c.haltMu.Lock()
+	c.haltReq = false
+	c.haltMu.Unlock()
+	go func() {
+		for {
+			c.haltMu.Lock()
+			if c.haltReq {
+				c.haltMu.Unlock()
+				close(ch)
+				return
+			}
+			c.haltMu.Unlock()
+			state := new(api.DebuggerState)
+			err := c.call("Command", &api.DebuggerCommand{Name: api.Continue}, state)
+			if err != nil {
+				state.Err = err
+			}
+			if state.Exited {
+				// Error types apparently cannot be marshalled by Go correctly. Must reset error here.
+				state.Err = fmt.Errorf("Process %d has exited with status %d", c.ProcessPid(), state.ExitStatus)
+			}
+			ch <- state
+			if err != nil || state.Exited {
+				close(ch)
+				return
+			}
+
+			isbreakpoint := false
+			istracepoint := true
+			for i := range state.Threads {
+				if state.Threads[i].Breakpoint != nil {
+					isbreakpoint = true
+					istracepoint = istracepoint && state.Threads[i].Breakpoint.Tracepoint
+				}
+			}
+
+			if !isbreakpoint || !istracepoint {
+				close(ch)
+				return
+			}
+		}
+	}()
+	return ch
+}
+
+func (c *RPCClient) Next() (*api.DebuggerState, error) {
+	state := new(api.DebuggerState)
+	err := c.call("Command", &api.DebuggerCommand{Name: api.Next}, state)
+	return state, err
+}
+
+func (c *RPCClient) Step() (*api.DebuggerState, error) {
+	state := new(api.DebuggerState)
+	err := c.call("Command", &api.DebuggerCommand{Name: api.Step}, state)
+	return state, err
+}
+
+func (c *RPCClient) StepInstruction() (*api.DebuggerState, error) {
+	state := new(api.DebuggerState)
+	err := c.call("Command", &api.DebuggerCommand{Name: api.StepInstruction}, state)
+	return state, err
+}
+
+func (c *RPCClient) SwitchThread(threadID int) (*api.DebuggerState, error) {
+	state := new(api.DebuggerState)
+	cmd := &api.DebuggerCommand{
+		Name:     api.SwitchThread,
+		ThreadID: threadID,
+	}
+	err := c.call("Command", cmd, state)
+	return state, err
+}
+
+func (c *RPCClient) SwitchGoroutine(goroutineID int) (*api.DebuggerState, error) {
+	state := new(api.DebuggerState)
+	cmd := &api.DebuggerCommand{
+		Name:        api.SwitchGoroutine,
+		GoroutineID: goroutineID,
+	}
+	err := c.call("Command", cmd, state)
+	return state, err
+}
+
+func (c *RPCClient) Halt() (*api.DebuggerState, error) {
+	state := new(api.DebuggerState)
+	c.haltMu.Lock()
+	c.haltReq = true
+	c.haltMu.Unlock()
+	err := c.call("Command", &api.DebuggerCommand{Name: api.Halt}, state)
+	return state, err
+}
+
+func (c *RPCClient) GetBreakpoint(id int) (*api.Breakpoint, error) {
+	breakpoint := new(api.Breakpoint)
+	err := c.call("GetBreakpoint", id, breakpoint)
+	return breakpoint, err
+}
+
+func (c *RPCClient) GetBreakpointByName(name string) (*api.Breakpoint, error) {
+	breakpoint := new(api.Breakpoint)
+	err := c.call("GetBreakpointByName", name, breakpoint)
+	return breakpoint, err
+}
+
+func (c *RPCClient) CreateBreakpoint(breakPoint *api.Breakpoint) (*api.Breakpoint, error) {
+	newBreakpoint := new(api.Breakpoint)
+	err := c.call("CreateBreakpoint", breakPoint, &newBreakpoint)
+	return newBreakpoint, err
+}
+
+func (c *RPCClient) ListBreakpoints() ([]*api.Breakpoint, error) {
+	var breakpoints []*api.Breakpoint
+	err := c.call("ListBreakpoints", nil, &breakpoints)
+	return breakpoints, err
+}
+
+func (c *RPCClient) ClearBreakpoint(id int) (*api.Breakpoint, error) {
+	bp := new(api.Breakpoint)
+	err := c.call("ClearBreakpoint", id, bp)
+	return bp, err
+}
+
+func (c *RPCClient) ClearBreakpointByName(name string) (*api.Breakpoint, error) {
+	bp := new(api.Breakpoint)
+	err := c.call("ClearBreakpointByName", name, bp)
+	return bp, err
+}
+
+func (c *RPCClient) AmendBreakpoint(bp *api.Breakpoint) error {
+	err := c.call("AmendBreakpoint", bp, nil)
+	return err
+}
+
+func (c *RPCClient) CancelNext() error {
+	return unsupportedApiError
+}
+
+func (c *RPCClient) ListThreads() ([]*api.Thread, error) {
+	var threads []*api.Thread
+	err := c.call("ListThreads", nil, &threads)
+	return threads, err
+}
+
+func (c *RPCClient) GetThread(id int) (*api.Thread, error) {
+	thread := new(api.Thread)
+	err := c.call("GetThread", id, &thread)
+	return thread, err
+}
+
+func (c *RPCClient) EvalVariable(scope api.EvalScope, symbol string) (*api.Variable, error) {
+	v := new(api.Variable)
+	err := c.call("EvalSymbol", EvalSymbolArgs{scope, symbol}, v)
+	return v, err
+}
+
+func (c *RPCClient) SetVariable(scope api.EvalScope, symbol, value string) error {
+	var unused int
+	return c.call("SetSymbol", SetSymbolArgs{scope, symbol, value}, &unused)
+}
+
+func (c *RPCClient) ListSources(filter string) ([]string, error) {
+	var sources []string
+	err := c.call("ListSources", filter, &sources)
+	return sources, err
+}
+
+func (c *RPCClient) ListFunctions(filter string) ([]string, error) {
+	var funcs []string
+	err := c.call("ListFunctions", filter, &funcs)
+	return funcs, err
+}
+
+func (c *RPCClient) ListTypes(filter string) ([]string, error) {
+	var types []string
+	err := c.call("ListTypes", filter, &types)
+	return types, err
+}
+
+func (c *RPCClient) ListPackageVariables(filter string) ([]api.Variable, error) {
+	var vars []api.Variable
+	err := c.call("ListPackageVars", filter, &vars)
+	return vars, err
+}
+
+func (c *RPCClient) ListPackageVariablesFor(threadID int, filter string) ([]api.Variable, error) {
+	var vars []api.Variable
+	err := c.call("ListThreadPackageVars", &ThreadListArgs{Id: threadID, Filter: filter}, &vars)
+	return vars, err
+}
+
+func (c *RPCClient) ListLocalVariables(scope api.EvalScope) ([]api.Variable, error) {
+	var vars []api.Variable
+	err := c.call("ListLocalVars", scope, &vars)
+	return vars, err
+}
+
+func (c *RPCClient) ListRegisters() (string, error) {
+	var regs string
+	err := c.call("ListRegisters", nil, &regs)
+	return regs, err
+}
+
+func (c *RPCClient) ListFunctionArgs(scope api.EvalScope) ([]api.Variable, error) {
+	var vars []api.Variable
+	err := c.call("ListFunctionArgs", scope, &vars)
+	return vars, err
+}
+
+func (c *RPCClient) ListGoroutines() ([]*api.Goroutine, error) {
+	var goroutines []*api.Goroutine
+	err := c.call("ListGoroutines", nil, &goroutines)
+	return goroutines, err
+}
+
+func (c *RPCClient) Stacktrace(goroutineId, depth int, full bool) ([]api.Stackframe, error) {
+	var locations []api.Stackframe
+	err := c.call("StacktraceGoroutine", &StacktraceGoroutineArgs{Id: goroutineId, Depth: depth, Full: full}, &locations)
+	return locations, err
+}
+
+func (c *RPCClient) AttachedToExistingProcess() bool {
+	var answer bool
+	c.call("AttachedToExistingProcess", nil, &answer)
+	return answer
+}
+
+func (c *RPCClient) FindLocation(scope api.EvalScope, loc string) ([]api.Location, error) {
+	var answer []api.Location
+	err := c.call("FindLocation", FindLocationArgs{scope, loc}, &answer)
+	return answer, err
+}
+
+// Disassemble code between startPC and endPC
+func (c *RPCClient) DisassembleRange(scope api.EvalScope, startPC, endPC uint64, flavour api.AssemblyFlavour) (api.AsmInstructions, error) {
+	var r api.AsmInstructions
+	err := c.call("Disassemble", DisassembleRequest{scope, startPC, endPC, flavour}, &r)
+	return r, err
+}
+
+// Disassemble function containing pc
+func (c *RPCClient) DisassemblePC(scope api.EvalScope, pc uint64, flavour api.AssemblyFlavour) (api.AsmInstructions, error) {
+	var r api.AsmInstructions
+	err := c.call("Disassemble", DisassembleRequest{scope, pc, 0, flavour}, &r)
+	return r, err
+}
+
+func (c *RPCClient) url(path string) string {
+	return fmt.Sprintf("http://%s%s", c.addr, path)
+}
+
+func (c *RPCClient) call(method string, args, reply interface{}) error {
+	return c.client.Call("RPCServer."+method, args, reply)
+}