implement grpc CodecV2

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

.gitea/ISSUE_TEMPLATE/question.md

@@ -1,14 +0,0 @@
----
-name: Question
-about: Ask a question about go-micro
-title: ''
-labels: ''
-assignees: ''
-
----
-
-Before asking, please check if your question has already been answered: 
-
-1. Check the documentation - https://micro.mu/docs/
-2. Check the examples and plugins - https://github.com/micro/examples & https://github.com/micro/go-plugins
-3. Search existing issues

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,6 +1,6 @@
 ---
 name: Bug report
-about: For reporting bugs in go-micro
+about: For reporting bugs in micro
 title: "[BUG]"
 labels: ''
 assignees: ''
@@ -16,9 +16,3 @@ assignees: ''
 **How to reproduce the bug:**
 
 If possible, please include a minimal code snippet here.
-
-**Environment:**
-Go Version: please paste `go version` output here
-```
-please paste `go env` output here
-```

.github/ISSUE_TEMPLATE/feature-request---enhancement.md

@@ -1,6 +1,6 @@
 ---
 name: Feature request / Enhancement
-about: If you have a need not served by go-micro
+about: If you have a need not served by micro
 title: "[FEATURE]"
 labels: ''
 assignees: ''
@@ -14,4 +14,4 @@ A clear and concise description of what the problem is. Ex. I'm always frustrate
 A clear and concise description of what you want to happen.
 
 **Additional context**
-Add any other context or screenshots about the feature request here.
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,8 @@
+---
+name: Question
+about: Ask a question about micro
+title: ''
+labels: ''
+assignees: ''
+
+---

.github/autoapprove.yml

@@ -0,0 +1,28 @@
+name: "autoapprove"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: approve
+        run: [ "curl -o tea https://dl.gitea.com/tea/main/tea-main-linux-amd64",
+               "chmod +x ./tea",
+               "./tea login add --name unistack --token ${{ secrets.GITHUB_TOKEN }} --url https://git.unistack.org",
+               "./tea pr --repo ${{ github.event.repository.name }}"
+        ]
+        if: github.actor == 'vtolstov'
+        id: approve
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/job_coverage.yml

@@ -0,0 +1,53 @@
+name: coverage
+
+on:
+  push:
+    branches: [ main, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+  pull_request:
+    branches: [ main, v3, v4 ]
+
+jobs:
+
+  build:
+    if: github.server_url != 'https://github.com'
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout code
+      uses: actions/checkout@v4
+      with:
+        filter: 'blob:none'
+
+    - name: setup go
+      uses: actions/setup-go@v5
+      with:
+        cache-dependency-path: "**/*.sum"
+        go-version: 'stable'
+
+    - name: test coverage
+      run: |
+        go test -v -cover ./... -covermode=count -coverprofile coverage.out -coverpkg ./...
+        go tool cover -func coverage.out -o coverage.out
+
+    - name: coverage badge
+      uses: tj-actions/coverage-badge-go@v2
+      with:
+        green: 80
+        filename: coverage.out
+
+    - uses: stefanzweifel/git-auto-commit-action@v4
+      name: autocommit
+      with:
+        commit_message: Apply Code Coverage Badge
+        skip_fetch: false
+        skip_checkout: false
+        file_pattern: ./README.md
+
+    - name: push
+      if: steps.auto-commit-action.outputs.changes_detected == 'true'
+      uses: ad-m/github-push-action@master
+      with:
+        github_token: ${{ github.token }}
+        branch: ${{ github.ref }}

.github/workflows/job_lint.yml

@@ -3,10 +3,10 @@ name: lint
 on:
   pull_request:
     types: [opened, reopened, synchronize]
-    branches:
+    branches: [ master, v3, v4 ]
-    - master
+    paths-ignore:
-    - v3
+      - '.github/**'
-    - v4
+      - '.gitea/**'
 
 jobs:
   lint:
@@ -20,10 +20,10 @@ jobs:
       uses: actions/setup-go@v5
       with:
         cache-dependency-path: "**/*.sum"
-        go-version: 'stable' 
+        go-version: 'stable'
     - name: setup deps
       run: go get -v ./...
     - name: run lint
-      uses: https://github.com/golangci/golangci-lint-action@v6
+      uses: golangci/golangci-lint-action@v6
       with:
         version: 'latest'

.github/workflows/job_sync.yml

@@ -0,0 +1,94 @@
+name: sync
+
+on:
+  schedule:
+    - cron: '*/5 * * * *'
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  sync:
+    if: github.server_url != 'https://github.com'
+    runs-on: ubuntu-latest
+    steps:
+      - name: init
+        run: |
+          git config --global user.email "vtolstov <vtolstov@users.noreply.github.com>"
+          git config --global user.name "github-actions[bot]"
+          echo "machine git.unistack.org login vtolstov password ${{ secrets.TOKEN_GITEA }}" >> /root/.netrc
+          echo "machine github.com login vtolstov password ${{ secrets.TOKEN_GITHUB }}" >> /root/.netrc
+
+      - name: check master
+        id: check_master
+        run: |
+          src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+          dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+          echo "src_hash=$src_hash"
+          echo "dst_hash=$dst_hash"
+          if [ "$src_hash" != "$dst_hash" -a "$src_hash" != "" -a "$dst_hash" != "" ]; then
+            echo "sync_needed=true" >> $GITHUB_OUTPUT
+          else
+            echo "sync_needed=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: sync master
+        if: steps.check_master.outputs.sync_needed == 'true'
+        run: |
+          git clone --filter=blob:none --filter=tree:0 --branch master --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+          cd repo
+          git remote add --no-tags --fetch --track master upstream https://github.com/${GITHUB_REPOSITORY}
+          git pull --rebase upstream master
+          git push upstream master --progress
+          git push origin master --progress
+          cd ../
+          rm -rf repo
+
+      - name: check v3
+        id: check_v3
+        run: |
+          src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+          dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+          echo "src_hash=$src_hash"
+          echo "dst_hash=$dst_hash"
+          if [ "$src_hash" != "$dst_hash" ]; then
+            echo "sync_needed=true" >> $GITHUB_OUTPUT
+          else
+            echo "sync_needed=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: sync v3
+        if: steps.check_v3.outputs.sync_needed == 'true'
+        run: |
+          git clone --filter=blob:none --filter=tree:0 --branch v3 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+          cd repo
+          git remote add --no-tags --fetch --track v3 upstream https://github.com/${GITHUB_REPOSITORY}
+          git pull --rebase upstream v3
+          git push upstream v3 --progress
+          git push origin v3 --progress
+          cd ../
+          rm -rf repo
+
+      - name: check v4
+        id: check_v4
+        run: |
+          src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+          dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+          echo "src_hash=$src_hash"
+          echo "dst_hash=$dst_hash"
+          if [ "$src_hash" != "$dst_hash" ]; then
+            echo "sync_needed=true" >> $GITHUB_OUTPUT
+          else
+            echo "sync_needed=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: sync v4
+        if: steps.check_v4.outputs.sync_needed == 'true'
+        run: |
+          git clone --filter=blob:none --filter=tree:0 --branch v4 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+          cd repo
+          git remote add --no-tags --fetch --track v4 upstream https://github.com/${GITHUB_REPOSITORY}
+          git pull --rebase upstream v4
+          git push upstream v4 --progress
+          git push origin v4 --progress
+          cd ../
+          rm -rf repo

.github/workflows/job_test.yml

@@ -3,15 +3,12 @@ name: test
 on:
   pull_request:
     types: [opened, reopened, synchronize]
-    branches:
+    branches: [ master, v3, v4 ]
-    - master
-    - v3
-    - v4
   push:
-    branches:
+    branches: [ master, v3, v4 ]
-    - master
+    paths-ignore:
-    - v3
+      - '.github/**'
-    - v4
+      - '.gitea/**'
 
 jobs:
   test:

.github/workflows/job_tests.yml

@@ -3,15 +3,12 @@ name: test
 on:
   pull_request:
     types: [opened, reopened, synchronize]
-    branches:
+    branches: [ master, v3, v4 ]
-    - master
-    - v3
-    - v4
   push:
-    branches:
+    branches: [ master, v3, v4 ]
-    - master
+    paths-ignore:
-    - v3
+      - '.github/**'
-    - v4
+      - '.gitea/**'
 
 jobs:
   test:
@@ -35,19 +32,19 @@ jobs:
         go-version: 'stable'
     - name: setup go work
       env:
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
+        GOWORK: ${{ github.workspace }}/go.work
       run: |
         go work init
         go work use .
         go work use micro-tests
     - name: setup deps
       env:
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
+        GOWORK: ${{ github.workspace }}/go.work
       run: go get -v ./...
     - name: run tests
       env:
         INTEGRATION_TESTS: yes
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
+        GOWORK: ${{ github.workspace }}/go.work
       run: |
         cd micro-tests
         go test -mod readonly -v ./... || true

.gitignore

@@ -1,3 +1,9 @@
+# Develop tools
+/.vscode/
+/.idea/
+.idea
+.vscode
+
 # Binaries for programs and plugins
 *.exe
 *.exe~
@@ -5,11 +11,29 @@
 *.so
 *.dylib
 
-# Test binary, built with `go test -c`
+# Folders
+_obj
+_test
+_build
+.DS_Store
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+# Test binary, build with `go test -c`
 *.test
 
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
 
-# Dependency directories (remove the comment below to include it)
+# vim temp files
-# vendor/
+*~
+*.swp
+*.swo

.golangci.yml

@@ -1,5 +1,5 @@
 run:
   concurrency: 8
-  deadline: 5m
+  timeout: 5m
   issues-exit-code: 1
   tests: true

README.md

@@ -1 +1,2 @@
-# micro-codec-proto
+# micro-codec-proto
+![Coverage](https://img.shields.io/badge/Coverage-10.7%25-red)

codec_test.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"testing"
 
-	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v4/codec"
 )
 
 func TestFrame(t *testing.T) {

go.mod

@@ -1,11 +1,19 @@
-module go.unistack.org/micro-codec-proto/v3
+module go.unistack.org/micro-codec-proto/v4
 
-go 1.22
+go 1.25
 
 require (
-	go.unistack.org/micro-proto/v3 v3.4.1
+	go.unistack.org/micro-proto/v4 v4.1.0
-	go.unistack.org/micro/v3 v3.10.88
+	go.unistack.org/micro/v4 v4.1.29
-	google.golang.org/protobuf v1.35.2
+	google.golang.org/grpc v1.79.1
+	google.golang.org/protobuf v1.36.11
 )
 
-require github.com/google/go-cmp v0.6.0 // indirect
+require (
+	github.com/ash3in/uuidv8 v1.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/matoous/go-nanoid v1.5.1 // indirect
+	golang.org/x/sys v0.41.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -1,6 +1,53 @@
+github.com/DATA-DOG/go-sqlmock v1.5.2 h1:OcvFkGmslmlZibjAjaHm3L//6LiuBgolP7OputlJIzU=
+github.com/DATA-DOG/go-sqlmock v1.5.2/go.mod h1:88MAG/4G7SMwSE3CeA0ZKzrT5CiOU3OJ+JlNzwDqpNU=
+github.com/ash3in/uuidv8 v1.2.0 h1:2oogGdtCPwaVtyvPPGin4TfZLtOGE5F+W++E880G6SI=
+github.com/ash3in/uuidv8 v1.2.0/go.mod h1:BnU0wJBxnzdEKmVg4xckBkD+VZuecTFTUP3M0dWgyY4=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-go.unistack.org/micro-proto/v3 v3.4.1 h1:UTjLSRz2YZuaHk9iSlVqqsA50JQNAEK2ZFboGqtEa9Q=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-go.unistack.org/micro-proto/v3 v3.4.1/go.mod h1:okx/cnOhzuCX0ggl/vToatbCupi0O44diiiLLsZ93Zo=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
-go.unistack.org/micro/v3 v3.10.88 h1:MxlzP+77Y6Kphb3lzHxROL4XfE/WdCQMQpnPv4D9Z8U=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
-go.unistack.org/micro/v3 v3.10.88/go.mod h1:erMgt3Bl7vQQ0e9UpQyR5NlLiZ9pKeEJ9+1tfYFaqUg=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/matoous/go-nanoid v1.5.1 h1:aCjdvTyO9LLnTIi0fgdXhOPPvOHjpXN6Ik9DaNjIct4=
+github.com/matoous/go-nanoid v1.5.1/go.mod h1:zyD2a71IubI24efhpvkJz+ZwfwagzgSO6UNiFsZKN7U=
+github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
+github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
+github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
+github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
+go.unistack.org/micro-proto/v4 v4.1.0 h1:qPwL2n/oqh9RE3RTTDgt28XK3QzV597VugQPaw9lKUk=
+go.unistack.org/micro-proto/v4 v4.1.0/go.mod h1:ArmK7o+uFvxSY3dbJhKBBX4Pm1rhWdLEFf3LxBrMtec=
+go.unistack.org/micro/v4 v4.1.2 h1:9SOlPYyPNNFpg1A7BsvhDyQm3gysLH1AhWbDCp1hyoY=
+go.unistack.org/micro/v4 v4.1.2/go.mod h1:lr3oYED8Ay1vjK68QqRw30QOtdk/ffpZqMFDasOUhKw=
+go.unistack.org/micro/v4 v4.1.29 h1:oCE3z2q1/7uQOr4Ed8y61Ilk0VLy8jmfrxEWGHioFrY=
+go.unistack.org/micro/v4 v4.1.29/go.mod h1:TscgP4Qp+P+8FYxfySJjd1FUlyzHopwR39A0+N5JITg=
+golang.org/x/net v0.34.0 h1:Mb7Mrk043xzHgnRM88suvJFwzVrRfHEHJEl5/71CKw0=
+golang.org/x/net v0.34.0/go.mod h1:di0qlW3YNM5oh6GqDGQr92MyTozJPmybPK4Ev/Gm31k=
+golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
+golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
+golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
+golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20241216192217-9240e9c98484 h1:Z7FRVJPSMaHQxD0uXU8WdgFh8PseLM8Q8NzhnpMrBhQ=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20241216192217-9240e9c98484/go.mod h1:lcTa1sDdWEIHMWlITnIczmw5w60CF9ffkb8Z+DVmmjA=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 h1:gRkg/vSppuSQoDjxyiGfN4Upv/h/DQmIR10ZU8dh4Ww=
+google.golang.org/grpc v1.69.4 h1:MF5TftSMkd8GLw/m0KM6V8CMOCY6NZ1NQDPGFgbTt4A=
+google.golang.org/grpc v1.69.4/go.mod h1:vyjdE6jLBI76dgpDojsFGNaHlxdjXN9ghpnd2o7JGZ4=
+google.golang.org/grpc v1.79.1 h1:zGhSi45ODB9/p3VAawt9a+O/MULLl9dpizzNNpq7flY=
+google.golang.org/grpc v1.79.1/go.mod h1:KmT0Kjez+0dde/v2j9vzwoAScgEPx/Bw1CYChhHLrHQ=
+google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM=
+google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
+google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

options.go

@@ -1,7 +1,8 @@
 package proto
 
 import (
-	codec "go.unistack.org/micro/v3/codec"
+	codec "go.unistack.org/micro/v4/codec"
+	"google.golang.org/grpc/mem"
 	"google.golang.org/protobuf/proto"
 )
 
@@ -16,3 +17,9 @@ type marshalOptionsKey struct{}
 func MarshalOptions(o proto.MarshalOptions) codec.Option {
 	return codec.SetOption(marshalOptionsKey{}, o)
 }
+
+type memBufferPoolKey struct{}
+
+func BufferPool(p mem.BufferPool) codec.Option {
+	return codec.SetOption(memBufferPoolKey{}, p)
+}

proto.go

@@ -2,9 +2,12 @@
 package proto
 
 import (
-	pb "go.unistack.org/micro-proto/v3/codec"
+	pb "go.unistack.org/micro-proto/v4/codec"
-	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v4/codec"
-	rutil "go.unistack.org/micro/v3/util/reflect"
+	rutil "go.unistack.org/micro/v4/util/reflect"
+	"google.golang.org/grpc/encoding"
+	_ "google.golang.org/grpc/encoding/proto"
+	"google.golang.org/grpc/mem"
 	"google.golang.org/protobuf/proto"
 )
 
@@ -27,9 +30,15 @@ type protoCodecV2 struct {
 	opts codec.Options
 }
 
+type protoCodecGRPC struct {
+	opts codec.Options
+	bp   mem.BufferPool
+}
+
 var (
-	_ codec.Codec   = (*protoCodec)(nil)
+	_ codec.Codec      = (*protoCodec)(nil)
-	_ codec.CodecV2 = (*protoCodecV2)(nil)
+	_ codec.CodecV2    = (*protoCodecV2)(nil)
+	_ encoding.CodecV2 = (*protoCodecGRPC)(nil)
 )
 
 func (c *protoCodec) Marshal(v interface{}, opts ...codec.Option) ([]byte, error) {
@@ -195,5 +204,109 @@ func (c *protoCodecV2) String() string {
 }
 
 func NewCodecV2(opts ...codec.Option) codec.CodecV2 {
+	options := codec.NewOptions(opts...)
+
+	bp, ok := options.Context.Value(memBufferPoolKey{}).(mem.BufferPool)
+	if !ok || bp != nil {
+		bp = mem.NewTieredBufferPool(1024, 2048, 4096, 8092, 1*1024*1024*1024, 4*1024*1024*1024)
+	}
+
 	return &protoCodecV2{opts: codec.NewOptions(opts...)}
 }
+
+func NewCodecGRPC(opts ...codec.Option) *protoCodecGRPC {
+	options := codec.NewOptions(opts...)
+
+	bp, ok := options.Context.Value(memBufferPoolKey{}).(mem.BufferPool)
+	if !ok || bp != nil {
+		bp = mem.NewTieredBufferPool(1024, 2048, 4096, 8092, 1*1024*1024*1024, 4*1024*1024*1024)
+	}
+
+	return &protoCodecGRPC{opts: codec.NewOptions(opts...)}
+}
+
+func (c *protoCodecGRPC) Marshal(v any) (out mem.BufferSlice, err error) {
+	if v == nil {
+		return nil, nil
+	}
+
+	options := c.opts
+
+	if options.Flatten {
+		if nv, nerr := rutil.StructFieldByTag(v, options.TagName, "flatten"); nerr == nil {
+			v = nv
+		}
+	}
+
+	switch m := v.(type) {
+	case *codec.Frame:
+		buf := c.bp.Get(len(m.Data))
+		*buf = append((*buf)[:0], m.Data...)
+		out = append(out, mem.NewBuffer(buf, c.bp))
+		return out, nil
+	case *pb.Frame:
+		buf := c.bp.Get(len(m.Data))
+		*buf = append((*buf)[:0], m.Data...)
+		out = append(out, mem.NewBuffer(buf, c.bp))
+		return out, nil
+	case proto.Message:
+		marshalOptions := DefaultMarshalOptions
+		if options.Context != nil {
+			if f, ok := options.Context.Value(marshalOptionsKey{}).(proto.MarshalOptions); ok {
+				marshalOptions = f
+			}
+		}
+		size := proto.Size(m)
+
+		buf := c.bp.Get(size)
+
+		if _, err := marshalOptions.MarshalAppend((*buf)[:0], m); err != nil {
+			c.bp.Put(buf)
+			return nil, err
+		}
+		out = append(out, mem.NewBuffer(buf, c.bp))
+		return out, nil
+	default:
+		return nil, codec.ErrInvalidMessage
+	}
+}
+
+func (c *protoCodecGRPC) Unmarshal(data mem.BufferSlice, v any) (err error) {
+	if v == nil || len(data) == 0 {
+		return nil
+	}
+
+	options := c.opts
+
+	if options.Flatten {
+		if nv, nerr := rutil.StructFieldByTag(v, options.TagName, "flatten"); nerr == nil {
+			v = nv
+		}
+	}
+
+	buf := data.MaterializeToBuffer(c.bp)
+	defer buf.Free()
+
+	switch m := v.(type) {
+	case *codec.Frame:
+		m.Data = buf.ReadOnlyData()
+		return nil
+	case *pb.Frame:
+		m.Data = buf.ReadOnlyData()
+		return nil
+	case proto.Message:
+		unmarshalOptions := DefaultUnmarshalOptions
+		if options.Context != nil {
+			if f, ok := options.Context.Value(marshalOptionsKey{}).(proto.UnmarshalOptions); ok {
+				unmarshalOptions = f
+			}
+		}
+		return unmarshalOptions.Unmarshal(buf.ReadOnlyData(), m)
+	default:
+		return codec.ErrInvalidMessage
+	}
+}
+
+func (c *protoCodecGRPC) Name() string {
+	return "proto"
+}