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Annotation of libwww/Library/src/HTLocal.html, revision 2.1

2.1     ! frystyk     1: <HTML>
        !             2: <HEAD>
        !             3: <TITLE>W3C Reference Library libwww Local File Access</TITLE>
        !             4: <!-- Changed by: Henrik Frystyk Nielsen,  3-Apr-1996 -->
        !             5: </HEAD>
        !             6: <BODY>
        !             7: 
        !             8: <H1>Locsl File Access</H1>
        !             9: 
        !            10: <PRE>
        !            11: /*
        !            12: **     (c) COPYRIGHT MIT 1995.
        !            13: **     Please first read the full copyright statement in the file COPYRIGH.
        !            14: */
        !            15: </PRE>
        !            16: 
        !            17: This module has the common code for opening and closing local files.<P>
        !            18: 
        !            19: This module is implemented by <A HREF="HTTCP.c">HTTCP.c</A>, and it is
        !            20: a part of the <A HREF="http://www.w3.org/pub/WWW/Library/"> W3C
        !            21: Reference Library</A>.
        !            22: 
        !            23: <PRE>
        !            24: #ifndef HTLOCAL_H
        !            25: #define HTLOCAL_H
        !            26: 
        !            27: #include "HTNet.h"
        !            28: </PRE>
        !            29: 
        !            30: <H2>Mode of File</H2>
        !            31: 
        !            32: A file can be opened in variuos modes dependent on whether it is to be
        !            33: opened for reading or writing or both. We here define a set that is
        !            34: largely equivalent to what we know from ANSI C file modes and Unix
        !            35: file modes:
        !            36: 
        !            37: <PRE>
        !            38: #ifndef NO_UNIX_IO
        !            39: typedef int HTLocalMode;
        !            40: 
        !            41: #define HT_FB_RDONLY   O_RDONLY
        !            42: #define HT_FT_RDONLY   HT_FB_RDONLY
        !            43: 
        !            44: #define HT_FB_WRONLY   O_WRONLY|O_CREAT
        !            45: #define HT_FT_WRONLY   HT_FB_WRONLY
        !            46: 
        !            47: #define HT_FB_RDWR     O_RDWR
        !            48: #define HT_FT_RDWR     HT_FB_RDWR
        !            49: 
        !            50: #define HT_FB_APPEND   O_APPEND
        !            51: #define HT_FT_APPEND   HT_FB_APPEND
        !            52: 
        !            53: #else 
        !            54: typedef const char HTLocalMode[10];
        !            55: 
        !            56: #define HT_FB_RDONLY   "rb"
        !            57: #define HT_FT_RDONLY   "r"
        !            58: 
        !            59: #define HT_FB_WRONLY   "wb"
        !            60: #define HT_FT_WRONLY   "w"
        !            61: 
        !            62: #define HT_FB_RDWR     "r+b"
        !            63: #define HT_FT_RDWR     "r+"
        !            64: 
        !            65: #define HT_FB_APPEND   "ab"
        !            66: #define HT_FT_APPEND   "a"
        !            67: 
        !            68: #endif
        !            69: </PRE>
        !            70: 
        !            71: <H2>Open a Local File</H2>
        !            72: 
        !            73: Opens a local file using whatever means are available on the current
        !            74: platform. If we have unix file descriptors then use that as we can use
        !            75: select on them. On windows we want to use asynchrounous handles - just
        !            76: like we handle the socket interface as well. On other platforms, we
        !            77: use ANSI C file descriptors.
        !            78: 
        !            79: <PRE>
        !            80: extern int HTFileOpen (HTNet * net, char * local, HTLocalMode mode);
        !            81: </PRE>
        !            82: 
        !            83: <H2>Close a Local File</H2>
        !            84: 
        !            85: Closes a file descriptor whatever means are available on the current
        !            86: platform. If we have unix file descriptors then use this otherwise use
        !            87: the ANSI C file descriptors
        !            88: 
        !            89: <PRE>
        !            90: extern int HTFileCLose (HTNet * net);
        !            91: </PRE>
        !            92: 
        !            93: 
        !            94: <PRE>
        !            95: #endif   /* HTLOCAL_H */
        !            96: </PRE>
        !            97: 
        !            98: <HR>
        !            99: <ADDRESS>
        !           100: @(#) $Id: Date Author State $
        !           101: </ADDRESS>
        !           102: </BODY>
        !           103: </HTML>
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