-
Notifications
You must be signed in to change notification settings - Fork 0
/
executor.go
77 lines (65 loc) · 2.27 KB
/
executor.go
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
// Copyright (C) 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package executor provides an interface for executing compiled API programs.
package executor
//#include "gapil/runtime/cc/runtime.h"
import "C"
import (
"fmt"
"unsafe"
"github.com/google/gapid/core/codegen"
"github.com/google/gapid/gapil/compiler"
)
// Executor is used to create execution environments for a compiled program.
// Use New() to create Executors, do not create directly.
type Executor struct {
program *compiler.Program
exec *codegen.Executor
createContext unsafe.Pointer
destroyContext unsafe.Pointer
globalsSize uint64
cmdFunctions map[string]unsafe.Pointer
}
// New returns a new and initialized Executor for the given program.
func New(prog *compiler.Program, optimize bool) *Executor {
e, err := prog.Codegen.Executor(optimize)
if err != nil {
panic(err)
}
m := (*C.gapil_module)(e.GlobalAddress(prog.Module))
if m.create_context == nil || m.destroy_context == nil {
panic(fmt.Errorf("Program has no context functions. Was EmitContext not set to true?\nmodule: %+v", m))
}
exec := &Executor{
program: prog,
exec: e,
createContext: unsafe.Pointer(m.create_context),
destroyContext: unsafe.Pointer(m.destroy_context),
globalsSize: uint64(e.SizeOf(prog.Globals.Type)),
cmdFunctions: map[string]unsafe.Pointer{},
}
for name, info := range prog.Commands {
exec.cmdFunctions[name] = e.FunctionAddress(info.Execute)
}
return exec
}
// FunctionAddress returns the function address of the function with the given
// name or nil if the function was not found.
func (e *Executor) FunctionAddress(name string) unsafe.Pointer {
f, ok := e.program.Functions[name]
if !ok {
return nil
}
return e.exec.FunctionAddress(f)
}