HeapSelectDram for pvPortMalloc, ... #7790
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mhightower83
changed the title
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lwIP can be updated to only use pvPortMalloc. They also could be changed for lwIPMalloc. Would you like me to make the change ? |
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@d-a-v, Yes, that would be great! |
…S_INLINE_HEAP_SELECT
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@mhightower83 You may try with #7793 |
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@d-a-v Thanks! I tested with #include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <umm_malloc/umm_heap_select.h>
const byte DNS_PORT = 53;
IPAddress apIP(172, 217, 28, 1);
DNSServer dnsServer;
ESP8266WebServer webServer(80);
String responseHTML = ""
"<!DOCTYPE html><html lang='en'><head>"
"<meta name='viewport' content='width=device-width'>"
"<title>CaptivePortal</title></head><body>"
"<h1>Hello World!</h1><p>This is a captive portal example."
" All requests will be redirected here.</p></body></html>";
void setup() {
HeapSelectIram x;
WiFi.persistent(false);
WiFi.mode(WIFI_OFF);
Serial.begin(115200);
delay(15);
Serial.println();
Serial.println();
WiFi.mode(WIFI_AP);
// { // This is the WiFi call that leads to HWDT
// HeapSelectIram x;
WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
// }
WiFi.softAP("DNSServer CaptivePortal example");
// if DNSServer is started with "*" for domain name, it will reply with
// provided IP to all DNS request
dnsServer.start(DNS_PORT, "*", apIP);
Serial.println("DNSServer CaptivePortal example running");
// replay to all requests with same HTML
webServer.onNotFound([]() {
webServer.send(200, "text/html", responseHTML);
});
webServer.begin();
}
void loop() {
HeapSelectIram x;
dnsServer.processNextRequest();
webServer.handleClient();
} |
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@d-a-v, is this good to merge? |
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The goal here is to guarantee that the SDK gets DRAM for the heap requests that are made during SDK API calls. To accomplish this I rely on the SDK to only use the portable heap functions: pvPortMalloc, pvPortCalloc, pvPortRealloc, and pvPortZalloc. I add a thin wrapper to these functions to switch to DRAM.
I am not sure about the lwIP library, it appears to use both malloc and the pvPort... APIs.