Refactor GoVPP

Squashed commit of the following:

commit 348930db31575e9f59b3834d9fec07411f011e05
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Wed Aug 15 11:30:13 2018 +0200

    Use debug level for log about different context

commit 9fc963c559cea67a41b85c6cdadc322fb3b1fc7c
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Wed Aug 15 11:22:03 2018 +0200

    Remove annoying logs and add env vars for debugging

commit fdc9fd624d13feadb602e0d03d58f8a44b7a565f
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Wed Aug 15 11:18:47 2018 +0200

    Fix printing unknown VPPApiError

commit 8f968be36a91de4d4a8ea17593ba314f82aa9583
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Tue Aug 14 17:25:10 2018 +0200

    Refactor entire GoVPP

    - fix some cases with inconsistent VPP messages, causing messages
      to be incorrectly identified as event or request
    - simplify API, remove direct access to internal Go channels
    - add module name with message to registration of messages
    - start watching filesystem only when vpe-api file does not exist
    - simplify code in message codec and remove unneeded parts
    - retrieve IDs of all registered messages after connect to VPP
    - define fallback for control ping in core to avoid duplicate registration
    - add SetLogLevel function to set logger level more easily
    - remove lot of unused code

commit 34dd1b7e10ef0324aa8c4e4cc42375bd6021c6cb
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Mon Aug 13 11:29:54 2018 +0200

    Rename VnetError to VPPApiError

commit c6549d6f77847a1367a12ff47fb716e2955e973a
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Mon Aug 13 10:23:43 2018 +0200

    Fix examples and regenerate binapi

commit 4612e36b416779771f5efab4fc654c2766d2cb1c
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Mon Aug 13 09:51:22 2018 +0200

    Add parsing and generation for services

commit ac9c5280c5aa27e325f327609e2364cc66f3723f
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Fri Aug 10 14:30:15 2018 +0200

    Fix exit status on error and add continue-onerror flag

commit 9b3f4ef9fc7c8c62037fa107085eae18a8725314
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 15:20:56 2018 +0200

    Return VnetError when Retval != 0

commit 8fd21a907b5e628ec4d2026215b83d15da96c297
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 14:59:05 2018 +0200

    Add all missing errors from api_errno.h

commit 08450f288d3046ebaecf40203174ae342a07f1eb
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 14:29:27 2018 +0200

    Update README

commit d8dced0728dd62243539be741868fb7d9b8de4cc
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 13:59:59 2018 +0200

    Regenerate vpe in core

commit 254da7592cdbf634cf7aa46ae36ce7bb6d4ee555
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 13:37:00 2018 +0200

    Add VnetError type for Retvals

commit 4475c1087fb53ab4c788e530bc7fef7cfc89d2cd
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 13:36:07 2018 +0200

    Add registration API

commit 892a3ea5a2c703e2f7c29331663f6a6fa706bff5
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 13:30:43 2018 +0200

    Generate registration for messages and check all IDs on connect

commit 389ed03b6e7082260281866c3449d72d72347c99
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 11:32:41 2018 +0200

    Show error for empty adapter (on Darwin/Windows)

commit ef1ea040d656ade64242432dc5f06810ed8dcde6
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 11:31:37 2018 +0200

    Improve logged info

commit d4adae3b14ed54c8d693060dd857fa9ba5ec8e06
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 11:27:48 2018 +0200

    Update examples

commit 63921e1346014701a22639a2611129563bb1eb78
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Thu Aug 9 11:02:56 2018 +0200

    Generate unions and fix some issues

    - add comments between sections
    - define structs on single line if it has no fields
    - generate unions with setters/getters for each field
    - fix detection of message type

commit 6ab3e3fa590b245898306a6ffaf32c7721eab60c
Author: Ondrej Fabry <ofabry@cisco.com>
Date:   Wed Aug 8 15:37:10 2018 +0200

    Refactor binapi-generator

    - split JSON parsing from code generation
    - parse and generate enums
    - parse unions (no generation yet)
    - change output file suffix to '.ba.go'
    - cleanup and simplify code
    - split code into files
    - add flag for debug mode

Change-Id: I58f685e0d4c7a38e9a7b6ea0a1f47792d95d7399
Signed-off-by: Ondrej Fabry <ofabry@cisco.com>

1 files changed, 546 insertions, 0 deletions

diff --git a/examples/bin_api/memif/memif.ba.go b/examples/bin_api/memif/memif.ba.go
new file mode 100644
index 0000000..3650355
--- /dev/null
+++ b/examples/bin_api/memif/memif.ba.go
@@ -0,0 +1,546 @@
+// Code generated by GoVPP binapi-generator. DO NOT EDIT.
+// source: memif.api.json
+
+/*
+Package memif is a generated VPP binary API of the 'memif' VPP module.
+
+It is generated from this file:
+	memif.api.json
+
+It contains these VPP binary API objects:
+	10 messages
+	5 services
+*/
+package memif
+
+import "git.fd.io/govpp.git/api"
+import "github.com/lunixbochs/struc"
+import "bytes"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = struc.Pack
+var _ = bytes.NewBuffer
+
+/* Messages */
+
+// MemifSocketFilenameAddDel represents the VPP binary API message 'memif_socket_filename_add_del'.
+// Generated from 'memif.api.json', line 4:
+//
+//            "memif_socket_filename_add_del",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "client_index"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            [
+//                "u8",
+//                "is_add"
+//            ],
+//            [
+//                "u32",
+//                "socket_id"
+//            ],
+//            [
+//                "u8",
+//                "socket_filename",
+//                128
+//            ],
+//            {
+//                "crc": "0x30e3929d"
+//            }
+//
+type MemifSocketFilenameAddDel struct {
+	IsAdd          uint8
+	SocketID       uint32
+	SocketFilename []byte `struc:"[128]byte"`
+}
+
+func (*MemifSocketFilenameAddDel) GetMessageName() string {
+	return "memif_socket_filename_add_del"
+}
+func (*MemifSocketFilenameAddDel) GetCrcString() string {
+	return "30e3929d"
+}
+func (*MemifSocketFilenameAddDel) GetMessageType() api.MessageType {
+	return api.RequestMessage
+}
+func NewMemifSocketFilenameAddDel() api.Message {
+	return &MemifSocketFilenameAddDel{}
+}
+
+// MemifSocketFilenameAddDelReply represents the VPP binary API message 'memif_socket_filename_add_del_reply'.
+// Generated from 'memif.api.json', line 35:
+//
+//            "memif_socket_filename_add_del_reply",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            [
+//                "i32",
+//                "retval"
+//            ],
+//            {
+//                "crc": "0xe8d4e804"
+//            }
+//
+type MemifSocketFilenameAddDelReply struct {
+	Retval int32
+}
+
+func (*MemifSocketFilenameAddDelReply) GetMessageName() string {
+	return "memif_socket_filename_add_del_reply"
+}
+func (*MemifSocketFilenameAddDelReply) GetCrcString() string {
+	return "e8d4e804"
+}
+func (*MemifSocketFilenameAddDelReply) GetMessageType() api.MessageType {
+	return api.ReplyMessage
+}
+func NewMemifSocketFilenameAddDelReply() api.Message {
+	return &MemifSocketFilenameAddDelReply{}
+}
+
+// MemifCreate represents the VPP binary API message 'memif_create'.
+// Generated from 'memif.api.json', line 53:
+//
+//            "memif_create",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "client_index"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            [
+//                "u8",
+//                "role"
+//            ],
+//            [
+//                "u8",
+//                "mode"
+//            ],
+//            [
+//                "u8",
+//                "rx_queues"
+//            ],
+//            [
+//                "u8",
+//                "tx_queues"
+//            ],
+//            [
+//                "u32",
+//                "id"
+//            ],
+//            [
+//                "u32",
+//                "socket_id"
+//            ],
+//            [
+//                "u8",
+//                "secret",
+//                24
+//            ],
+//            [
+//                "u32",
+//                "ring_size"
+//            ],
+//            [
+//                "u16",
+//                "buffer_size"
+//            ],
+//            [
+//                "u8",
+//                "hw_addr",
+//                6
+//            ],
+//            {
+//                "crc": "0x6597cdb2"
+//            }
+//
+type MemifCreate struct {
+	Role       uint8
+	Mode       uint8
+	RxQueues   uint8
+	TxQueues   uint8
+	ID         uint32
+	SocketID   uint32
+	Secret     []byte `struc:"[24]byte"`
+	RingSize   uint32
+	BufferSize uint16
+	HwAddr     []byte `struc:"[6]byte"`
+}
+
+func (*MemifCreate) GetMessageName() string {
+	return "memif_create"
+}
+func (*MemifCreate) GetCrcString() string {
+	return "6597cdb2"
+}
+func (*MemifCreate) GetMessageType() api.MessageType {
+	return api.RequestMessage
+}
+func NewMemifCreate() api.Message {
+	return &MemifCreate{}
+}
+
+// MemifCreateReply represents the VPP binary API message 'memif_create_reply'.
+// Generated from 'memif.api.json', line 113:
+//
+//            "memif_create_reply",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            [
+//                "i32",
+//                "retval"
+//            ],
+//            [
+//                "u32",
+//                "sw_if_index"
+//            ],
+//            {
+//                "crc": "0xfda5941f"
+//            }
+//
+type MemifCreateReply struct {
+	Retval    int32
+	SwIfIndex uint32
+}
+
+func (*MemifCreateReply) GetMessageName() string {
+	return "memif_create_reply"
+}
+func (*MemifCreateReply) GetCrcString() string {
+	return "fda5941f"
+}
+func (*MemifCreateReply) GetMessageType() api.MessageType {
+	return api.ReplyMessage
+}
+func NewMemifCreateReply() api.Message {
+	return &MemifCreateReply{}
+}
+
+// MemifDelete represents the VPP binary API message 'memif_delete'.
+// Generated from 'memif.api.json', line 135:
+//
+//            "memif_delete",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "client_index"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            [
+//                "u32",
+//                "sw_if_index"
+//            ],
+//            {
+//                "crc": "0x529cb13f"
+//            }
+//
+type MemifDelete struct {
+	SwIfIndex uint32
+}
+
+func (*MemifDelete) GetMessageName() string {
+	return "memif_delete"
+}
+func (*MemifDelete) GetCrcString() string {
+	return "529cb13f"
+}
+func (*MemifDelete) GetMessageType() api.MessageType {
+	return api.RequestMessage
+}
+func NewMemifDelete() api.Message {
+	return &MemifDelete{}
+}
+
+// MemifDeleteReply represents the VPP binary API message 'memif_delete_reply'.
+// Generated from 'memif.api.json', line 157:
+//
+//            "memif_delete_reply",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            [
+//                "i32",
+//                "retval"
+//            ],
+//            {
+//                "crc": "0xe8d4e804"
+//            }
+//
+type MemifDeleteReply struct {
+	Retval int32
+}
+
+func (*MemifDeleteReply) GetMessageName() string {
+	return "memif_delete_reply"
+}
+func (*MemifDeleteReply) GetCrcString() string {
+	return "e8d4e804"
+}
+func (*MemifDeleteReply) GetMessageType() api.MessageType {
+	return api.ReplyMessage
+}
+func NewMemifDeleteReply() api.Message {
+	return &MemifDeleteReply{}
+}
+
+// MemifSocketFilenameDetails represents the VPP binary API message 'memif_socket_filename_details'.
+// Generated from 'memif.api.json', line 175:
+//
+//            "memif_socket_filename_details",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            [
+//                "u32",
+//                "socket_id"
+//            ],
+//            [
+//                "u8",
+//                "socket_filename",
+//                128
+//            ],
+//            {
+//                "crc": "0xe347e32f"
+//            }
+//
+type MemifSocketFilenameDetails struct {
+	SocketID       uint32
+	SocketFilename []byte `struc:"[128]byte"`
+}
+
+func (*MemifSocketFilenameDetails) GetMessageName() string {
+	return "memif_socket_filename_details"
+}
+func (*MemifSocketFilenameDetails) GetCrcString() string {
+	return "e347e32f"
+}
+func (*MemifSocketFilenameDetails) GetMessageType() api.MessageType {
+	return api.ReplyMessage
+}
+func NewMemifSocketFilenameDetails() api.Message {
+	return &MemifSocketFilenameDetails{}
+}
+
+// MemifSocketFilenameDump represents the VPP binary API message 'memif_socket_filename_dump'.
+// Generated from 'memif.api.json', line 198:
+//
+//            "memif_socket_filename_dump",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "client_index"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            {
+//                "crc": "0x51077d14"
+//            }
+//
+type MemifSocketFilenameDump struct{}
+
+func (*MemifSocketFilenameDump) GetMessageName() string {
+	return "memif_socket_filename_dump"
+}
+func (*MemifSocketFilenameDump) GetCrcString() string {
+	return "51077d14"
+}
+func (*MemifSocketFilenameDump) GetMessageType() api.MessageType {
+	return api.RequestMessage
+}
+func NewMemifSocketFilenameDump() api.Message {
+	return &MemifSocketFilenameDump{}
+}
+
+// MemifDetails represents the VPP binary API message 'memif_details'.
+// Generated from 'memif.api.json', line 216:
+//
+//            "memif_details",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            [
+//                "u32",
+//                "sw_if_index"
+//            ],
+//            [
+//                "u8",
+//                "if_name",
+//                64
+//            ],
+//            [
+//                "u8",
+//                "hw_addr",
+//                6
+//            ],
+//            [
+//                "u32",
+//                "id"
+//            ],
+//            [
+//                "u8",
+//                "role"
+//            ],
+//            [
+//                "u8",
+//                "mode"
+//            ],
+//            [
+//                "u32",
+//                "socket_id"
+//            ],
+//            [
+//                "u32",
+//                "ring_size"
+//            ],
+//            [
+//                "u16",
+//                "buffer_size"
+//            ],
+//            [
+//                "u8",
+//                "admin_up_down"
+//            ],
+//            [
+//                "u8",
+//                "link_up_down"
+//            ],
+//            {
+//                "crc": "0x4f5a3397"
+//            }
+//
+type MemifDetails struct {
+	SwIfIndex   uint32
+	IfName      []byte `struc:"[64]byte"`
+	HwAddr      []byte `struc:"[6]byte"`
+	ID          uint32
+	Role        uint8
+	Mode        uint8
+	SocketID    uint32
+	RingSize    uint32
+	BufferSize  uint16
+	AdminUpDown uint8
+	LinkUpDown  uint8
+}
+
+func (*MemifDetails) GetMessageName() string {
+	return "memif_details"
+}
+func (*MemifDetails) GetCrcString() string {
+	return "4f5a3397"
+}
+func (*MemifDetails) GetMessageType() api.MessageType {
+	return api.ReplyMessage
+}
+func NewMemifDetails() api.Message {
+	return &MemifDetails{}
+}
+
+// MemifDump represents the VPP binary API message 'memif_dump'.
+// Generated from 'memif.api.json', line 276:
+//
+//            "memif_dump",
+//            [
+//                "u16",
+//                "_vl_msg_id"
+//            ],
+//            [
+//                "u32",
+//                "client_index"
+//            ],
+//            [
+//                "u32",
+//                "context"
+//            ],
+//            {
+//                "crc": "0x51077d14"
+//            }
+//
+type MemifDump struct{}
+
+func (*MemifDump) GetMessageName() string {
+	return "memif_dump"
+}
+func (*MemifDump) GetCrcString() string {
+	return "51077d14"
+}
+func (*MemifDump) GetMessageType() api.MessageType {
+	return api.RequestMessage
+}
+func NewMemifDump() api.Message {
+	return &MemifDump{}
+}
+
+/* Services */
+
+type Services interface {
+	DumpMemif(*MemifDump) (*MemifDetails, error)
+	DumpMemifSocketFilename(*MemifSocketFilenameDump) (*MemifSocketFilenameDetails, error)
+	MemifCreate(*MemifCreate) (*MemifCreateReply, error)
+	MemifDelete(*MemifDelete) (*MemifDeleteReply, error)
+	MemifSocketFilenameAddDel(*MemifSocketFilenameAddDel) (*MemifSocketFilenameAddDelReply, error)
+}
+
+func init() {
+	api.RegisterMessage((*MemifSocketFilenameAddDel)(nil), "memif.MemifSocketFilenameAddDel")
+	api.RegisterMessage((*MemifSocketFilenameAddDelReply)(nil), "memif.MemifSocketFilenameAddDelReply")
+	api.RegisterMessage((*MemifCreate)(nil), "memif.MemifCreate")
+	api.RegisterMessage((*MemifCreateReply)(nil), "memif.MemifCreateReply")
+	api.RegisterMessage((*MemifDelete)(nil), "memif.MemifDelete")
+	api.RegisterMessage((*MemifDeleteReply)(nil), "memif.MemifDeleteReply")
+	api.RegisterMessage((*MemifSocketFilenameDetails)(nil), "memif.MemifSocketFilenameDetails")
+	api.RegisterMessage((*MemifSocketFilenameDump)(nil), "memif.MemifSocketFilenameDump")
+	api.RegisterMessage((*MemifDetails)(nil), "memif.MemifDetails")
+	api.RegisterMessage((*MemifDump)(nil), "memif.MemifDump")
+}