diff options
Diffstat (limited to 'mtdev/iobuf.c')
-rw-r--r-- | mtdev/iobuf.c | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/mtdev/iobuf.c b/mtdev/iobuf.c deleted file mode 100644 index 65c33f6..0000000 --- a/mtdev/iobuf.c +++ /dev/null @@ -1,63 +0,0 @@ -/*************************************************************************** - * - * Multitouch X driver - * Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se> - * - * 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 2 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, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * - **************************************************************************/ - -#include <mtdev-iobuf.h> -#include <sys/poll.h> - -void init_iobuf(struct IOBuffer *buf) -{ - memset(buf, 0, sizeof(struct IOBuffer)); - buf->at = buf->begin; - buf->top = buf->at; - buf->end = buf->begin + DIM_BUFFER; -} - -const struct input_event *get_iobuf_event(struct IOBuffer *buf, int fd) -{ - const struct input_event *ev; - int n = buf->top - buf->at; - if (n < EVENT_SIZE) { - /* partial event is available: save it */ - if (buf->at != buf->begin && n > 0) - memmove(buf->begin, buf->at, n); - /* start from the beginning */ - buf->at = buf->begin; - buf->top = buf->at + n; - /* read more data */ - SYSCALL(n = read(fd, buf->top, buf->end - buf->top)); - if (n <= 0) - return NULL; - buf->top += n; - } - if (buf->top - buf->at < EVENT_SIZE) - return NULL; - ev = (const struct input_event *)buf->at; - buf->at += EVENT_SIZE; - return ev; -} - -int poll_iobuf(struct IOBuffer *buf, int fd, int ms) -{ - struct pollfd fds = { fd, POLLIN, 0 }; - if (buf->top != buf->at) - return 1; - return poll(&fds, 1, ms); -} |