*Fix api call

*need to make createChannel async

index.js

@@ -51,10 +51,9 @@ class Channel {
   }
 
   async open(handshake) {
-    if (this._mux._slave) {
     await this._mux.pullLocal();
     await this._mux.pullFree();
-    }
+
     const freeLen = this._mux._free.length;
     const id =
       this._mux._free.length > 0
@@ -65,13 +64,11 @@ class Channel {
     this._localId = id + 1;
     this._mux._local[id] = this;
 
-    if (this._mux._slave) {
     if (freeLen > 0) {
       await this._mux.popFree(id);
     } else {
       await this._mux.pushLocal(id);
     }
-    }
 
     if (this._remoteId === 0) {
       this._info.outgoing.push(this._localId);
@@ -148,27 +145,27 @@ class Channel {
     if (this.closed === true) return;
     this.closed = true;
 
+    await this._mux.pullInfos();
+
     this._info.opened--;
 
+    await this._mux.pushInfos();
+
     if (this._remoteId > 0) {
       this._mux._remote[this._remoteId - 1] = null;
       this._remoteId = 0;
-      if (this._mux._slave) {
       await this._mux.pullFree();
-      }
       // If remote has acked, we can reuse the local id now
       // otherwise, we need to wait for the "ack" to arrive
       this._mux._free.push(this._localId - 1);
 
-      if (this._mux._slave) {
       await this._mux.pushFree(this._localId - 1);
     }
-    }
 
     this._mux._local[this._localId - 1] = null;
     this._localId = 0;
 
-    this._mux._gc(this._info);
+    await this._mux._gc(this._info);
     this._track(this.onclose(isRemote, this));
 
     if (this._active === 0) this._destroy();
@@ -361,7 +358,7 @@ module.exports = class Protomux {
     return info ? info.opened > 0 : false;
   }
 
-  createChannel({
+  async createChannel({
     userData = null,
     protocol,
     aliases = [],
@@ -375,7 +372,7 @@ module.exports = class Protomux {
   }) {
     if (this.stream.destroyed) return null;
 
-    const info = this._get(protocol, id, aliases);
+    const info = await this._get(protocol, id, aliases);
     if (unique && info.opened > 0) return null;
 
     if (info.incoming.length === 0) {
@@ -396,7 +393,12 @@ module.exports = class Protomux {
 
     this._remoteBacklog--;
 
+    await this.pullInfos();
+
     const remoteId = info.incoming.shift();
+
+    await this.pushInfos();
+
     const r = this._remote[remoteId - 1];
     if (r === null) return null;
 
@@ -461,9 +463,11 @@ module.exports = class Protomux {
     this.stream.write(state.buffer);
   }
 
-  _get(protocol, id, aliases = []) {
+  async _get(protocol, id, aliases = []) {
     const key = toKey(protocol, id);
 
+    await this.pullInfos();
+
     let info = this._infos.get(key);
     if (info) return info;
 
@@ -486,18 +490,22 @@ module.exports = class Protomux {
       this._infos.set(key, info);
     }
 
+    await this.pushInfos();
+
     return info;
   }
 
-  _gc(info) {
+  async _gc(info) {
     if (
       info.opened === 0 &&
       info.outgoing.length === 0 &&
       info.incoming.length === 0
     ) {
+      await this.pullInfos();
       this._infos.delete(info.key);
 
       for (const alias of info.aliases) this._infos.delete(alias);
+      await this.pullInfos();
     }
   }
 
@@ -606,45 +614,41 @@ module.exports = class Protomux {
     }
 
     const rid = remoteId - 1;
-    const info = this._get(protocol, id);
+    const info = await this._get(protocol, id);
 
-    if (this._slave) {
     await this.pullRemote();
-    }
 
     // allow the remote to grow the ids by one
     if (this._remote.length === rid) {
       this._remote.push(null);
-      if (this._slave) {
+
       await this.pushRemote(this._remote.length - 1);
     }
-    }
 
     if (rid >= this._remote.length || this._remote[rid] !== null) {
       throw new Error("Invalid open message");
     }
 
     if (info.outgoing.length > 0) {
+      await this.pullInfos();
       const localId = info.outgoing.shift();
       const session = this._local[localId - 1];
 
+      await this.pushInfos();
+
       if (session === null) {
-        if (this._slave) {
         await this.pullFree();
-        }
         // we already closed the channel - ignore
         this._free.push(localId - 1);
-        if (this._slave) {
+
         await this.pushFree(localId - 1);
-        }
+
         return;
       }
 
       this._remote[rid] = { state, pending: null, session: null };
 
-      if (this._slave) {
       await this.pushRemote(remoteId);
-      }
 
       session._remoteId = remoteId;
       session._fullyOpen();
@@ -662,12 +666,13 @@ module.exports = class Protomux {
       throw new Error("Remote exceeded backlog");
     }
 
+    await this.pullInfos();
+
     info.pairing++;
     info.incoming.push(remoteId);
 
-    if (this._slave) {
+    await this.pushInfos();
     await this.pushRemote(remoteId);
-    }
 
     this._requestSession(protocol, id, info).catch(this._safeDestroyBound);
   }
@@ -680,22 +685,23 @@ module.exports = class Protomux {
       const i = info.outgoing.indexOf(localId);
       if (i === -1) continue;
 
+      await this.pullInfos();
+
       info.outgoing.splice(i, 1);
 
+      await this.pushInfos();
+
       const session = this._local[localId - 1];
 
-      if (this._slave) {
       await this.pullFree(localId - 1);
-      }
 
       this._free.push(localId - 1);
-      if (this._slave) {
+
       await this.pushFree(localId - 1);
-      }
 
       if (session !== null) session._close(true);
 
-      this._gc(info);
+      await this._gc(info);
       return;
     }
 
@@ -722,13 +728,25 @@ module.exports = class Protomux {
 
     if (notify) await notify(id);
 
-    if (--info.pairing > 0) return;
+    await this.pullInfos();
+
+    let p = --info.pairing;
+
+    await this.pushInfos();
+
+    if (p > 0) return;
 
     while (info.incoming.length > 0) {
-      this._rejectSession(info, info.incoming.shift());
+      await this.pullInfos();
+
+      const id = info.incoming.shift();
+
+      await this.pushInfos();
+
+      this._rejectSession(info, id);
     }
 
-    this._gc(info);
+    await this._gc(info);
   }
 
   _rejectSession(info, remoteId) {
@@ -783,19 +801,43 @@ module.exports = class Protomux {
   }
 
   async popFree(id) {
+    if (!this._slave) {
+      return;
+    }
     await this.stream.syncProtomux("popFree", id);
   }
   async pushFree(id) {
+    if (!this._slave) {
+      return;
+    }
     await this.stream.syncProtomux("pushFree", id);
   }
   async pushLocal(id) {
+    if (!this._slave) {
+      return;
+    }
     await this.stream.syncProtomux("pushLocal", id);
   }
   async pushRemote(id) {
+    if (!this._slave) {
+      return;
+    }
     await this.stream.syncProtomux("pushRemote", id);
   }
+  async pushInfos() {
+    if (!this._slave) {
+      return;
+    }
+    await this.stream.syncProtomux(
+      "pushInfos",
+      Array.from(this._infos.entries())
+    );
+  }
 
   async pullLocal() {
+    if (!this._slave) {
+      return;
+    }
     const ids = await this.stream.syncProtomux("pullLocal");
 
     ids.forEach((item) => {
@@ -806,12 +848,18 @@ module.exports = class Protomux {
     });
   }
   async pullFree() {
+    if (!this._slave) {
+      return;
+    }
     const ids = await this.stream.syncProtomux("pullFree");
 
     this._free = Array.from(new Set([...this._free, ...ids]));
     this._free = this._free.filter((item) => item !== null);
   }
   async pullRemote() {
+    if (!this._slave) {
+      return;
+    }
     const ids = await this.stream.syncProtomux("pullRemote");
 
     ids.forEach((item) => {
@@ -821,6 +869,18 @@ module.exports = class Protomux {
       }
     });
   }
+  async pullInfos() {
+    if (!this._slave) {
+      return;
+    }
+
+    const info = await this.stream.syncProtomux(
+      "pullInfos",
+      Array.from(this._infos.entries())
+    );
+
+    this._infos = new Map(info);
+  }
 };
 
 function noop() {}