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fix "stuck mouse button" by setting O_NONBLOCK, instead of using select() to check write() blocking on pipe.

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Marius Gedminas have located the bug as send original patch. Modified version by me.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13873 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
iive 2004-11-05 04:13:25 +00:00
parent a594c4f593
commit 0b06c21639
1 changed files with 16 additions and 15 deletions
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31
fifo.c
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@ -5,30 +5,31 @@
static int keyb_fifo_put=-1;
static int keyb_fifo_get=-1;
static void set_nonblock_flag(int fd) {
int oldflags;
oldflags = fcntl(fd, F_GETFL, 0);
if (oldflags != -1) {
if (fcntl(keyb_fifo_put, F_SETFL, oldflags | O_NONBLOCK) != -1) {
return;
}
}
mp_msg(MSGT_INPUT,MSGL_ERR,"Cannot set nonblocking mode for fd %d!\n", fd);
}
static void make_pipe(int* pr,int* pw){
int temp[2];
if(pipe(temp)!=0) mp_msg(MSGT_FIXME, MSGL_FIXME, MSGTR_CannotMakePipe);
*pr=temp[0];
*pw=temp[1];
set_nonblock_flag(temp[1]);
}
void mplayer_put_key(int code){
fd_set rfds;
struct timeval tv;
/* Watch stdin (fd 0) to see when it has input. */
FD_ZERO(&rfds);
FD_SET(keyb_fifo_put, &rfds);
tv.tv_sec = 0;
tv.tv_usec = 0;
//retval = select(keyb_fifo_put+1, &rfds, NULL, NULL, &tv);
if(select(keyb_fifo_put+1, NULL, &rfds, NULL, &tv)>0){
write(keyb_fifo_put,&code,4);
// printf("*** key event %d sent ***\n",code);
} else {
// printf("*** key event dropped (FIFO is full) ***\n");
}
if( write(keyb_fifo_put,&code,4) != 4 ){
mp_msg(MSGT_INPUT,MSGL_ERR,"*** key event dropped (FIFO is full) ***\n");
}
}
#else