71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
|
/*
|
||
|
|
* uhub - A tiny ADC p2p connection hub
|
||
|
|
* Copyright (C) 2007-2009, Jan Vidar Krey
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef HAVE_UHUB_HUB_IO_H
|
||
|
|
#define HAVE_UHUB_HUB_IO_H
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Used as a basis for receive queue, and send queue.
|
||
|
|
*/
|
||
|
|
struct hub_iobuf
|
||
|
|
{
|
||
|
|
char* buf;
|
||
|
|
size_t offset;
|
||
|
|
size_t size;
|
||
|
|
size_t capacity;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef int (*hub_iobuf_write)(void* desc, const void* buf, size_t len);
|
||
|
|
typedef int (*hub_iobuf_read)(void* desc, void* buf, size_t len);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create and initialize a io buffer
|
||
|
|
*/
|
||
|
|
extern struct hub_iobuf* hub_iobuf_create(size_t max_size);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Destroy an io buffer.
|
||
|
|
*/
|
||
|
|
extern void hub_iobuf_destroy(struct hub_iobuf*);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* net_read() from a socket descriptor into a buffer.
|
||
|
|
* @return value from net_recv()
|
||
|
|
*/
|
||
|
|
extern int hub_iobuf_recv(struct hub_iobuf*, hub_iobuf_read, void* data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* net_send() data from a buffer to a socket descriptor.
|
||
|
|
* @return value from net_send()
|
||
|
|
*/
|
||
|
|
extern int hub_iobuf_send(struct hub_iobuf*, hub_iobuf_write, void* data);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get a line from the buffer
|
||
|
|
*/
|
||
|
|
extern char* hub_iobuf_getline(struct hub_iobuf*, size_t* offset, size_t* length, size_t max_size);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Removes the first 'n' bytes from the buffer.
|
||
|
|
* This will reset the offset and size parameters.
|
||
|
|
*/
|
||
|
|
extern void hub_iobuf_remove(struct hub_iobuf* buf, size_t n);
|
||
|
|
|
||
|
|
#endif /* HAVE_UHUB_HUB_IO_H */
|