github.com/tetratelabs/proxy-wasm-go-sdk@v0.23.1-0.20240517021853-021aa9cf78e8/proxywasm/internal/abi_callback_l4.go (about)

     1  // Copyright 2020-2021 Tetrate
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  // http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package internal
    16  
    17  import (
    18  	"time"
    19  
    20  	"github.com/tetratelabs/proxy-wasm-go-sdk/proxywasm/types"
    21  )
    22  
    23  //export proxy_on_new_connection
    24  func proxyOnNewConnection(contextID uint32) types.Action {
    25  	if recordTiming {
    26  		defer logTiming("proxyOnNewConnection", time.Now())
    27  	}
    28  	ctx, ok := currentState.tcpContexts[contextID]
    29  	if !ok {
    30  		panic("invalid context")
    31  	}
    32  	currentState.setActiveContextID(contextID)
    33  	return ctx.OnNewConnection()
    34  }
    35  
    36  //export proxy_on_downstream_data
    37  func proxyOnDownstreamData(contextID uint32, dataSize int, endOfStream bool) types.Action {
    38  	if recordTiming {
    39  		defer logTiming("proxyOnDownstreamData", time.Now())
    40  	}
    41  	ctx, ok := currentState.tcpContexts[contextID]
    42  	if !ok {
    43  		panic("invalid context")
    44  	}
    45  	currentState.setActiveContextID(contextID)
    46  	return ctx.OnDownstreamData(dataSize, endOfStream)
    47  }
    48  
    49  //export proxy_on_downstream_connection_close
    50  func proxyOnDownstreamConnectionClose(contextID uint32, pType types.PeerType) {
    51  	if recordTiming {
    52  		defer logTiming("proxyOnDownstreamConnectionClose", time.Now())
    53  	}
    54  	ctx, ok := currentState.tcpContexts[contextID]
    55  	if !ok {
    56  		panic("invalid context")
    57  	}
    58  	currentState.setActiveContextID(contextID)
    59  	ctx.OnDownstreamClose(pType)
    60  }
    61  
    62  //export proxy_on_upstream_data
    63  func proxyOnUpstreamData(contextID uint32, dataSize int, endOfStream bool) types.Action {
    64  	if recordTiming {
    65  		defer logTiming("proxyOnUpstreamData", time.Now())
    66  	}
    67  	ctx, ok := currentState.tcpContexts[contextID]
    68  	if !ok {
    69  		panic("invalid context")
    70  	}
    71  	currentState.setActiveContextID(contextID)
    72  	return ctx.OnUpstreamData(dataSize, endOfStream)
    73  }
    74  
    75  //export proxy_on_upstream_connection_close
    76  func proxyOnUpstreamConnectionClose(contextID uint32, pType types.PeerType) {
    77  	if recordTiming {
    78  		defer logTiming("proxyOnUpstreamConnectionClose", time.Now())
    79  	}
    80  	ctx, ok := currentState.tcpContexts[contextID]
    81  	if !ok {
    82  		panic("invalid context")
    83  	}
    84  	currentState.setActiveContextID(contextID)
    85  	ctx.OnUpstreamClose(pType)
    86  }