/src/ftk_pipe_socket.c

  1/*
  2 * File: ftk_pipe.c
  3 * Author:  Li XianJing <xianjimli@hotmail.com>
  4 * Brief:   pipe
  5 *
  6 * Copyright (c) 2009 - 2010  Li XianJing <xianjimli@hotmail.com>
  7 *
  8 * Licensed under the Academic Free License version 2.1
  9 *
 10 * This program is free software; you can redistribute it and/or modify
 11 * it under the terms of the GNU General Public License as published by
 12 * the Free Software Foundation; either version 2 of the License, or
 13 * (at your option) any later version.
 14 *
 15 * This program is distributed in the hope that it will be useful,
 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 18 * GNU General Public License for more details.
 19 *
 20 * You should have received a copy of the GNU General Public License
 21 * along with this program; if not, write to the Free Software
 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 23 */
 24
 25/*
 26 * History:
 27 * ================================================================
 28 * 2010-01-20 Li XianJing <xianjimli@hotmail.com> created
 29 *
 30 */
 31
 32#include "ftk_log.h"
 33#include "ftk_pipe.h"
 34#include "ftk_allocator.h"
 35
 36struct _FtkPipe
 37{
 38	int read_fd;
 39	int write_fd;
 40};
 41
 42static Ret make_sock_pipe(int pipes[2])
 43{
 44	int pipe_ret = 0;
 45
 46	pipe_ret = ftk_pipe_pair(pipes);
 47
 48	return pipe_ret ? RET_FAIL : RET_OK;
 49}
 50
 51FtkPipe* ftk_pipe_create(void)
 52{
 53	int pipes[2] = {0};
 54	FtkPipe* thiz = FTK_NEW(FtkPipe);
 55	
 56	if(thiz != NULL)
 57	{
 58		make_sock_pipe(pipes);
 59		thiz->read_fd  = pipes[0];
 60		thiz->write_fd = pipes[1];
 61	}
 62
 63	return thiz;
 64}
 65
 66int   ftk_pipe_read(FtkPipe* thiz, void* buff, size_t length)
 67{
 68	return_val_if_fail(thiz != NULL && buff != NULL, -1);
 69
 70	return ftk_pipe_recv(thiz->read_fd, buff, length);
 71}
 72
 73int ftk_pipe_write(FtkPipe* thiz, const void* buff, size_t length)
 74{
 75	return_val_if_fail(thiz != NULL && buff != NULL, -1);
 76
 77	return ftk_pipe_send(thiz->write_fd, buff, length);
 78}
 79
 80int   ftk_pipe_get_read_handle(FtkPipe* thiz)
 81{
 82	return thiz != NULL ? thiz->read_fd : -1;
 83}
 84
 85int   ftk_pipe_get_write_handle(FtkPipe* thiz)
 86{
 87	return thiz != NULL ? thiz->write_fd : -1;
 88}
 89
 90void  ftk_pipe_destroy(FtkPipe* thiz)
 91{
 92	if(thiz != NULL)
 93	{
 94		ftk_pipe_close(thiz->read_fd);
 95		ftk_pipe_close(thiz->write_fd);
 96
 97		FTK_ZFREE(thiz, sizeof(*thiz));
 98	}
 99
100	return;
101}
102
103