Revision 1:0e4f1cc78052, committed 2010-05-27

Comitter:

donatien

Date:

Thu May 27 11:18:24 2010 +0000

Parent:

0:b6b9d1b95cc7

Commit message:

Changed in this revision

--- a/HttpClientStreamingExample.cpp	Thu May 27 10:16:27 2010 +0000
+++ b/HttpClientStreamingExample.cpp	Thu May 27 11:18:24 2010 +0000
@@ -10,16 +10,11 @@
 void request_callback(HttpResult r)
 {
   result = r;
-  printf("\r\n-----Err %d-----\r\n", r);
   completed = true;
 }
-  
-Serial pc(USBTX, USBRX);
 
 int main() {
 
-  pc.baud(115200);
-
   printf("Start\n");
 
   printf("\r\nSetting up...\r\n");
@@ -33,19 +28,20 @@
   
   HttpStream stream;
   
-  char BigBuf[1024 + 1] = {0};
-  stream.readNext((byte*)BigBuf, 1024);
+  char BigBuf[512 + 1] = {0};
+  stream.readNext((byte*)BigBuf, 512); //Point to buffer for the first read
   
-  HttpResult r = http.get("http://mbed.org/", &stream, request_callback);
+  HttpResult r = http.get("http://hackaday.com/feed/", &stream, request_callback); //Load a very large page, such as the hackaday RSS feed
   
   while(!completed)
   {
-    Net::poll();
+    Net::poll(); //Polls the Networking stack
     if(stream.readable())
     {
-      BigBuf[stream.readLen()+1] = 0;
-      printf("%s",BigBuf);
-      stream.readNext((byte*)BigBuf, 1024);
+      BigBuf[stream.readLen()] = 0; //Transform this buffer is zero-terminated char* string
+      printf("%s",BigBuf); //Displays it while loading
+      //Note: some server do not like if you throttle them too much, so printf'ing during a request is generally bad practice
+      stream.readNext((byte*)BigBuf, 512); //Buffer has been read, now we can put more data in it
     }
   }
   printf("\r\n--------------\r\n");
@@ -55,7 +51,7 @@
   }
   else
   {
-    printf("Error %d\n", r);
+    printf("Error %d\n", result);
   }
   
   while(1)