Update HTTP to use data-xfer interface.

src/include/gpxe/http.h

@@ -7,56 +7,10 @@
  *
  */
 
-#include <stdint.h>
-#include <gpxe/stream.h>
-#include <gpxe/async.h>
-#include <gpxe/linebuf.h>
-#include <gpxe/uri.h>
-
 /** HTTP default port */
 #define HTTP_PORT 80
 
 /** HTTPS default port */
 #define HTTPS_PORT 443
 
-/** HTTP receive state */
-enum http_rx_state {
-	HTTP_RX_RESPONSE = 0,
-	HTTP_RX_HEADER,
-	HTTP_RX_DATA,
-	HTTP_RX_DEAD,
-};
-
-/**
- * An HTTP request
- *
- */
-struct http_request {
-	/** URI being fetched */
-	struct uri *uri;
-	/** Data buffer to fill */
-	struct buffer *buffer;
-	/** Asynchronous operation */
-	struct async async;
-
-	/** HTTP response code */
-	unsigned int response;
-	/** HTTP Content-Length */
-	size_t content_length;
-
-	/** Server address */
-	struct sockaddr server;
-	/** Stream application for this request */
-	struct stream_application stream;
-	/** Number of bytes already sent */
-	size_t tx_offset;
-	/** RX state */
-	enum http_rx_state rx_state;
-	/** Line buffer for received header lines */
-	struct line_buffer linebuf;
-};
-
-extern int http_get ( struct uri *uri, struct buffer *buffer,
-		      struct async *parent );
-
 #endif /* _GPXE_HTTP_H */

src/include/gpxe/linebuf.h

@@ -21,8 +21,8 @@ struct line_buffer {
 };
 
 extern char * buffered_line ( struct line_buffer *linebuf );
-extern int line_buffer ( struct line_buffer *linebuf,
-			 const char **data, size_t *len );
+extern ssize_t line_buffer ( struct line_buffer *linebuf,
+			     const char *data, size_t len );
 extern void empty_line_buffer ( struct line_buffer *linebuf );
 
 #endif /* _GPXE_LINEBUF_H */