From a507e89be23a589d5a40ee2071f29c323f20958c Mon Sep 17 00:00:00 2001
From: david gauchard <gauchard@laas.fr>
Date: Wed, 31 Mar 2021 01:12:01 +0200
Subject: [PATCH 1/2] fix WiFiClient::write(flash or iram)

---
 libraries/ESP8266WiFi/src/WiFiClient.cpp      | 14 +++++++++----
 .../ESP8266WiFi/src/include/ClientContext.h   | 21 ++-----------------
 2 files changed, 12 insertions(+), 23 deletions(-)

diff --git a/libraries/ESP8266WiFi/src/WiFiClient.cpp b/libraries/ESP8266WiFi/src/WiFiClient.cpp
index 7a1c39e128..7686869b0b 100644
--- a/libraries/ESP8266WiFi/src/WiFiClient.cpp
+++ b/libraries/ESP8266WiFi/src/WiFiClient.cpp
@@ -212,7 +212,8 @@ size_t WiFiClient::write(const uint8_t *buf, size_t size)
         return 0;
     }
     _client->setTimeout(_timeout);
-    return _client->write(buf, size);
+    StreamConstPtr ptr(buf, size);
+    return _client->write(ptr);
 }
 
 size_t WiFiClient::write(Stream& stream, size_t unused)
@@ -227,8 +228,12 @@ size_t WiFiClient::write(Stream& stream)
     {
         return 0;
     }
-    _client->setTimeout(_timeout);
-    return _client->write(stream);
+    if (stream.hasPeekBufferAPI())
+    {
+        _client->setTimeout(_timeout);
+        return _client->write(stream);
+    }
+    return stream.sendAvailable(this);
 }
 
 size_t WiFiClient::write_P(PGM_P buf, size_t size)
@@ -238,7 +243,8 @@ size_t WiFiClient::write_P(PGM_P buf, size_t size)
         return 0;
     }
     _client->setTimeout(_timeout);
-    return _client->write_P(buf, size);
+    StreamConstPtr nopeek(buf, size);
+    return nopeek.sendAll(this);
 }
 
 int WiFiClient::available()
diff --git a/libraries/ESP8266WiFi/src/include/ClientContext.h b/libraries/ESP8266WiFi/src/include/ClientContext.h
index 9eb81ec295..43ce731de0 100644
--- a/libraries/ESP8266WiFi/src/include/ClientContext.h
+++ b/libraries/ESP8266WiFi/src/include/ClientContext.h
@@ -31,6 +31,7 @@ extern "C" void esp_schedule();
 
 #include <assert.h>
 #include <StreamDev.h>
+#include <esp_priv.h>
 
 bool getDefaultPrivateGlobalSyncValue ();
 
@@ -372,32 +373,15 @@ class ClientContext
         return _pcb->state;
     }
 
-    size_t write(const uint8_t* data, size_t size)
-    {
-        if (!_pcb) {
-            return 0;
-        }
-        StreamConstPtr ptr(data, size);
-        return _write_from_source(&ptr);
-    }
-
     size_t write(Stream& stream)
     {
         if (!_pcb) {
             return 0;
         }
+        assert(stream.hasPeekBufferAPI());
         return _write_from_source(&stream);
     }
 
-    size_t write_P(PGM_P buf, size_t size)
-    {
-        if (!_pcb) {
-            return 0;
-        }
-        StreamConstPtr ptr(buf, size);
-        return _write_from_source(&ptr);
-    }
-
     void keepAlive (uint16_t idle_sec = TCP_DEFAULT_KEEPALIVE_IDLE_SEC, uint16_t intv_sec = TCP_DEFAULT_KEEPALIVE_INTERVAL_SEC, uint8_t count = TCP_DEFAULT_KEEPALIVE_COUNT)
     {
         if (idle_sec && intv_sec && count) {
@@ -504,7 +488,6 @@ class ClientContext
                // Give scheduled functions a chance to run (e.g. Ethernet uses recurrent)
                delay(1);
                // will resume on timeout or when _write_some_from_cb or _notify_error fires
-
             }
             _send_waiting = false;
         } while(true);

From e429938f8a82d07bd06433b96ab85504fd3b823e Mon Sep 17 00:00:00 2001
From: david gauchard <gauchard@laas.fr>
Date: Wed, 31 Mar 2021 01:42:40 +0200
Subject: [PATCH 2/2] fix emulation on host

---
 libraries/ESP8266WiFi/src/WiFiClient.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/ESP8266WiFi/src/WiFiClient.cpp b/libraries/ESP8266WiFi/src/WiFiClient.cpp
index 7686869b0b..78df4bf85d 100644
--- a/libraries/ESP8266WiFi/src/WiFiClient.cpp
+++ b/libraries/ESP8266WiFi/src/WiFiClient.cpp
@@ -40,6 +40,7 @@ extern "C"
 #include "lwip/netif.h"
 #include <include/ClientContext.h>
 #include "c_types.h"
+#include <StreamDev.h>
 
 uint16_t WiFiClient::_localPort = 0;