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Annotation of libwww/Library/src/HTSocket.html, revision 2.20

2.1       frystyk     1: <HTML>
                      2: <HEAD>
2.18      frystyk     3: <TITLE>W3C Reference Library libwww Socket Interface</TITLE>
2.20    ! frystyk     4: <!-- Changed by: Henrik Frystyk Nielsen,  5-Apr-1996 -->
2.1       frystyk     5: <NEXTID N="z18">
                      6: </HEAD>
                      7: <BODY>
                      8: 
                      9: <H1>Manages Read and Write to and from the Network</H1>
                     10: 
                     11: <PRE>
                     12: /*
                     13: **     (c) COPYRIGHT MIT 1995.
                     14: **     Please first read the full copyright statement in the file COPYRIGH.
                     15: */
                     16: </PRE>
                     17: 
                     18: This module defines the read and write functions to and from the
                     19: network. As we are having reentrant function and a smarter network I/O
                     20: this will get very small :-) <P>
                     21: 
                     22: This module is implemented by <A HREF="HTSocket.c">HTSocket.c</A>, and
2.9       frystyk    23: it is a part of the <A HREF="http://www.w3.org/pub/WWW/Library/"> W3C
                     24: Reference Library</A>.
2.1       frystyk    25: 
                     26: <PRE>
                     27: #ifndef HTSOCKET_H
                     28: #define HTSOCKET_H
                     29: 
2.20    ! frystyk    30: #include <A HREF="HTReq.html">"HTEvntrg.h"</A>
2.1       frystyk    31: </PRE>
                     32: 
2.20    ! frystyk    33: <H2>Reading CRLF</H2>
2.1       frystyk    34: 
2.18      frystyk    35: The Library provides a default set of read routines that can handle
                     36: the most common situations. However, before we start we make following
                     37: definition is to make life easier when having a state machine looking
                     38: for a <CODE>&lt;CRLF&gt;</CODE> sequence.
2.1       frystyk    39: 
                     40: <PRE>
2.18      frystyk    41: typedef enum _HTEOLState {
2.1       frystyk    42:     EOL_ERR = -1,
                     43:     EOL_BEGIN = 0,
                     44:     EOL_FCR,
                     45:     EOL_FLF,
                     46:     EOL_DOT,
                     47:     EOL_SCR,
                     48:     EOL_SLF
2.18      frystyk    49: } HTEOLState;
                     50: </PRE>
                     51: 
                     52: <H2>Load Data from a Socket</H2>
2.2       frystyk    53: 
2.18      frystyk    54: This function is a wrapper around the <CODE>HTSocketRead()</CODE>
                     55: declared below. It provides a callback function for the <A
                     56: HREF="HTEvntrg.html">event loop</A> so that a socket can be loaded
                     57: using non-blocking I/O. The function requires an <B>open</B>
                     58: socket. It will typically be used in server applications or in a
                     59: client application that can read directly from <CODE>stdin</CODE>.
2.2       frystyk    60: 
                     61: <PRE>
2.18      frystyk    62: extern HTEventCallback HTLoadSocket;
2.9       frystyk    63: </PRE>
2.1       frystyk    64: 
2.9       frystyk    65: <PRE>
2.1       frystyk    66: #endif
                     67: </PRE>
                     68: 
2.20    ! frystyk    69: <HR>
        !            70: <ADDRESS>
        !            71: @(#) $Id: Date Author State $
        !            72: </ADDRESS>
2.1       frystyk    73: </BODY>
                     74: </HTML>
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