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mpv/fifo.c

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// keyboard:
static int keyb_fifo_put=-1;
static int keyb_fifo_get=-1;
static void make_pipe(int* pr,int* pw){
int temp[2];
if(pipe(temp)!=0) printf("Cannot make PIPE!\n");
*pr=temp[0];
*pw=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");
}
}