1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
package main
import (
"fmt"
"go/build"
"log"
"net"
"net/rpc"
"os"
"reflect"
"runtime"
"bytes"
)
func do_server() int {
g_config.read()
addr := *g_addr
if *g_sock == "unix" {
addr = get_socket_filename()
if file_exists(addr) {
log.Printf("unix socket: '%s' already exists\n", addr)
return 1
}
}
g_daemon = new_daemon(*g_sock, addr)
if *g_sock == "unix" {
// cleanup unix socket file
defer os.Remove(addr)
}
rpc.Register(new(RPC))
g_daemon.loop()
return 0
}
//-------------------------------------------------------------------------
// daemon
//-------------------------------------------------------------------------
type daemon struct {
listener net.Listener
cmd_in chan int
autocomplete *auto_complete_context
pkgcache package_cache
declcache *decl_cache
context build.Context
}
func new_daemon(network, address string) *daemon {
var err error
d := new(daemon)
d.listener, err = net.Listen(network, address)
if err != nil {
panic(err)
}
d.cmd_in = make(chan int, 1)
d.pkgcache = new_package_cache()
d.declcache = new_decl_cache(d.context)
d.autocomplete = new_auto_complete_context(d.pkgcache, d.declcache)
return d
}
func (this *daemon) drop_cache() {
this.pkgcache = new_package_cache()
this.declcache = new_decl_cache(this.context)
this.autocomplete = new_auto_complete_context(this.pkgcache, this.declcache)
}
const (
daemon_close = iota
)
func (this *daemon) loop() {
conn_in := make(chan net.Conn)
go func() {
for {
c, err := this.listener.Accept()
if err != nil {
panic(err)
}
conn_in <- c
}
}()
for {
// handle connections or server CMDs (currently one CMD)
select {
case c := <-conn_in:
rpc.ServeConn(c)
runtime.GC()
case cmd := <-this.cmd_in:
switch cmd {
case daemon_close:
return
}
}
}
}
func (this *daemon) close() {
this.cmd_in <- daemon_close
}
var g_daemon *daemon
//-------------------------------------------------------------------------
// server_* functions
//
// Corresponding client_* functions are autogenerated by goremote.
//-------------------------------------------------------------------------
func server_auto_complete(file []byte, filename string, cursor int, context_packed go_build_context) (c []candidate, d int) {
context := unpack_build_context(&context_packed)
defer func() {
if err := recover(); err != nil {
print_backtrace(err)
c = []candidate{
{"PANIC", "PANIC", decl_invalid},
}
// drop cache
g_daemon.drop_cache()
}
}()
// TODO: Probably we don't care about comparing all the fields, checking GOROOT and GOPATH
// should be enough.
if !reflect.DeepEqual(g_daemon.context, context) {
g_daemon.context = context
g_daemon.drop_cache()
}
if *g_debug {
var buf bytes.Buffer
log.Printf("Got autocompletion request for '%s'\n", filename)
log.Printf("Cursor at: %d\n", cursor)
buf.WriteString("-------------------------------------------------------\n")
buf.Write(file[:cursor])
buf.WriteString("#")
buf.Write(file[cursor:])
log.Print(buf.String())
log.Println("-------------------------------------------------------")
}
candidates, d := g_daemon.autocomplete.apropos(file, filename, cursor)
if *g_debug {
log.Printf("Offset: %d\n", d)
log.Printf("Number of candidates found: %d\n", len(candidates))
log.Printf("Candidates are:\n")
for _, c := range candidates {
abbr := fmt.Sprintf("%s %s %s", c.Class, c.Name, c.Type)
if c.Class == decl_func {
abbr = fmt.Sprintf("%s %s%s", c.Class, c.Name, c.Type[len("func"):])
}
log.Printf(" %s\n", abbr)
}
log.Println("=======================================================")
}
return candidates, d
}
func server_cursor_type_pkg(file []byte, filename string, cursor int) (typ, pkg string) {
defer func() {
if err := recover(); err != nil {
print_backtrace(err)
// drop cache
g_daemon.drop_cache()
}
}()
return g_daemon.autocomplete.cursor_type_pkg(file, filename, cursor)
}
func server_close(notused int) int {
g_daemon.close()
return 0
}
func server_status(notused int) string {
return g_daemon.autocomplete.status()
}
func server_drop_cache(notused int) int {
// drop cache
g_daemon.drop_cache()
return 0
}
func server_set(key, value string) string {
if key == "\x00" {
return g_config.list()
} else if value == "\x00" {
return g_config.list_option(key)
}
return g_config.set_option(key, value)
}
|
