5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 2005 - 2007 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; version 2 of the License.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
20 /****h* silcutil/SILC File Descriptor Stream Interface
24 * Implementation of SILC File Descriptor Stream. The file descriptor
25 * stream can be used read from and write to a file descriptor. This
26 * interface should be used only with real file descriptors, not with
27 * sockets. Use the SILC Socket Stream for sockets.
29 * SILC File Descriptor Stream is not thread-safe. If same stream must be
30 * used in multithreaded environment concurrency control must be employed.
34 #ifndef SILCFDSTREAM_H
35 #define SILCFDSTREAM_H
37 /****f* silcutil/SilcFDStreamAPI/silc_fd_stream_create
41 * SilcStream silc_fd_stream_create(int fd);
45 * Creates file descriptor stream for the open file descriptor indicated
46 * by `fd'. The stream is closed with the silc_stream_close and destroyed
47 * with the silc_stream_destroy.
49 * The silc_stream_set_notifier must be called in order to be able to read
50 * from and write to this file descriptor stream if the `fd' is in
54 SilcStream silc_fd_stream_create(int fd);
56 /****f* silcutil/SilcFDStreamAPI/silc_fd_stream_create2
60 * SilcStream silc_fd_stream_create2(int read_fd, int write_fd);
64 * Creates file descriptor stream for the open file descriptors indicated
65 * by `read_fd' and `write_fd'. The `read_fd' must be opened for reading
66 * and `write_fd' opened for writing. The stream is closed with the
67 * silc_stream_close and destroyed with the silc_stream_destroy.
69 * The silc_stream_set_notifier must be called in order to be able to read
70 * from and write to this file descriptor stream if the `fd' is in
74 SilcStream silc_fd_stream_create2(int read_fd, int write_fd);
76 /****f* silcutil/SilcFDStreamAPI/silc_fd_stream_file
80 * SilcStream silc_fd_stream_file(const char *filename, SilcBool reading,
85 * Same as silc_fd_stream_create but creates the stream by opening the
86 * file indicated by `filename'. If the `reading' is TRUE the file is
87 * opened for reading. If the `writing' is TRUE the file is opened
90 * The silc_stream_set_notifier must be called in order to be able to read
91 * from and write to this file descriptor stream if the `fd' is in
95 SilcStream silc_fd_stream_file(const char *filename, SilcBool reading,
98 /****f* silcutil/SilcFDStreamAPI/silc_fd_stream_get_info
103 * silc_fd_stream_get_info(SilcStream stream, int *read_fd, int *write_fd);
107 * Returns the file descriptors associated with the stream. The 'write_fd'
108 * is available only if the stream was created with silc_fd_stream_create2
112 SilcBool silc_fd_stream_get_info(SilcStream stream,
113 int *read_fd, int *write_fd);
115 /****f* silcutil/SilcFDStreamAPI/silc_fd_stream_get_error
119 * int silc_fd_stream_get_error(SilcStream stream);
123 * If error occurred during file descriptor stream operations, this
124 * function can be used to retrieve the error number that occurred.
127 int silc_fd_stream_get_error(SilcStream stream);
129 #endif /* SILCFDSTREAM_H */