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80 lines
2.4 KiB
80 lines
2.4 KiB
/* |
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Copyright (c) 2012, Broadcom Europe Ltd |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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* Neither the name of the copyright holder nor the |
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names of its contributors may be used to endorse or promote products |
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derived from this software without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY |
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include <sys/time.h> |
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#include <sys/types.h> |
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#include <unistd.h> |
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#include <stdio.h> |
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#include <termios.h> |
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#include "nb_io.h" |
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void nb_set_nonblocking_input(int enable) |
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{ |
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struct termios ttystate; |
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//get the terminal state |
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tcgetattr(STDIN_FILENO, &ttystate); |
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if (enable) |
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{ |
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//turn off canonical mode |
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ttystate.c_lflag &= ~ICANON; |
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//minimum of number input read. |
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ttystate.c_cc[VMIN] = 1; |
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} |
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else |
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{ |
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//turn on canonical mode |
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ttystate.c_lflag |= ICANON; |
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} |
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//set the terminal attributes. |
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tcsetattr(STDIN_FILENO, TCSANOW, &ttystate); |
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} |
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int nb_char_available(void) |
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{ |
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struct timeval tv; |
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fd_set fds; |
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tv.tv_sec = 0; |
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tv.tv_usec = 0; |
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FD_ZERO(&fds); |
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FD_SET(STDIN_FILENO, &fds); |
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select(STDIN_FILENO+1, &fds, NULL, NULL, &tv); |
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return (FD_ISSET(0, &fds)); |
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} |
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char nb_get_char(void) |
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{ |
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return getchar(); |
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} |
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void nb_put_char(char ch) |
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{ |
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putchar(ch); |
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}
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