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Sign mode support and BLE concurrent write fix #1492

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Sign mode support and BLE concurrent write fix #1492

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23 changes: 20 additions & 3 deletions wasmsdk/auth_txn.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,8 @@
package main

import (
"fmt"
"sync"
"syscall/js"

"github.com/0chain/gosdk/core/sys"
Expand All @@ -13,12 +15,17 @@ type AuthCallbackFunc func(msg string) string

var authResponseC chan string
var authMsgResponseC chan string
var authMsgLockC chan struct{}
var authInitOnce sync.Once
var authMsgInitOnce sync.Once

// Register the callback function
func registerAuthorizer(this js.Value, args []js.Value) interface{} {
// Store the callback function
authCallback := parseAuthorizerCallback(args[0])
authResponseC = make(chan string, 1)
authInitOnce.Do(func() {
authResponseC = make(chan string, 1)
})

sys.Authorize = func(msg string) (string, error) {
authCallback(msg)
Expand All @@ -29,11 +36,21 @@ func registerAuthorizer(this js.Value, args []js.Value) interface{} {

func registerAuthCommon(this js.Value, args []js.Value) interface{} {
authMsgCallback := parseAuthorizerCallback(args[0])
authResponseC = make(chan string, 1)
authMsgInitOnce.Do(func() {
authMsgLockC = make(chan struct{}, 1)
authMsgResponseC = make(chan string, 1)
authMsgLockC <- struct{}{}
})

sys.AuthCommon = func(msg string) (string, error) {
fmt.Printf("try acquire lock: %p\n", &authMsgLockC)
<-authMsgLockC
fmt.Printf("acquired lock: %p\n", &authMsgLockC)
authMsgCallback(msg)
return <-authResponseC, nil
rsp := <-authMsgResponseC
fmt.Println("got auth common rsp:", rsp)
authMsgLockC <- struct{}{}
return rsp, nil
}
return nil
}
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