C++_函数计算-阿里云帮助中心

通过函数计算的Custom Runtime，您可以使用C++在函数计算平台编写函数。本文介绍快速部署和调用C++函数的详细步骤。您可以按需修改C++的示例代码实现二次开发。

前提条件

操作步骤

执行以下命令，初始化项目。
```
s init fc-custom-cpp-event -d fc-custom-cpp-event
```
说明 -d用于指定该示例项目文件夹的名称，支持自定义。
执行以下命令，进入项目目录。
```
cd fc-custom-cpp-event
```
可选：按需修改函数的示例代码，实现二次开发。

执行以下命令，部署项目。

s deploy -y

输出示例：

[2022-01-26 08:39:21] [INFO] [S-CLI] - Start the pre-action
[2022-01-26 08:39:21] [INFO] [S-CLI] - Action: make build
docker build -t fc-cpp-runtime  -f build-image/Dockerfile build-image
Sending build context to Docker daemon  2.048kB
......
Reading package lists...
Building dependency tree...
Reading state information...
The following additional packages will be installed:
  cmake-data libarchive13 libjsoncpp1 libuv1
Suggested packages:
  codeblocks eclipse ninja-build lrzip
The following NEW packages will be installed:
  cmake cmake-data libarchive13 libjsoncpp1 libuv1
0 upgraded, 5 newly installed, 0 to remove and 49 not upgraded.
Need to get 4709 kB of archives.
.......
-- Build files have been written to: /tmp/sample/release
Scanning dependencies of target bootstrap
[ 33%] Building CXX object CMakeFiles/bootstrap.dir/src/register_handler.cpp.o
[ 66%] Building CXX object CMakeFiles/bootstrap.dir/src/handlers/event_handler.cpp.o
[100%] Linking CXX executable /tmp/bin/bootstrap
[100%] Built target bootstrap
[2022-01-26 08:41:55] [INFO] [S-CLI] - End the pre-action
 Checking Service, Function (1.46s)
 Creating Service, Function (4.28s)

Tips for next step
======================
* Display information of the deployed resource: s info
* Display metrics: s metrics
* Display logs: s logs
* Invoke remote function: s invoke
* Remove Service: s remove service
* Remove Function: s remove function
* Remove Trigger: s remove trigger
* Remove CustomDomain: s remove domain

helloworld:
  region:   cn-hangzhou
  service:
    name: hello-world-service
  function:
    name:       cppEventFunc
    runtime:    custom
    handler:    index.handler
    memorySize: 512
    timeout:    10

执行以下命令，远程调用函数。

s invoke -e "{}"

输出示例：

========= FC invoke Logs begin =========
FC Initialize Start RequestId: 9c7ff302-6a67-42b3-9076-3790d1c1****
FC Initialize End RequestId: 9c7ff302-6a67-42b3-9076-3790d1c1****
/invoke is called.
FC Invoke Start RequestId: 9c7ff302-6a67-42b3-9076-3790d1c1****
2022-01-26T08:46:00 9c7ff302-6a67-42b3-9076-3790d1c19e4b [INFO] handling invoke
FC Invoke End RequestId: 9c7ff302-6a67-42b3-9076-3790d1c1****

Duration: 0.72 ms, Billed Duration: 1 ms, Memory Size: 512 MB, Max Memory Used: 2.11 MB
========= FC invoke Logs end =========

FC Invoke Result:
{}

End of method: invoke