floraachy/Nasal-Interpreter
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fix bug in libkey and test/tetris.nas

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This commit is contained in:
ValKmjolnir
2022-02-22 18:01:49 +08:00
parent 9456a903d7
commit f05acaecc7
2 changed files with 18 additions and 17 deletions
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27
module/keyboard.cpp
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@@ -10,22 +10,19 @@
#ifndef _WIN32
static struct termios init_termios;
static struct termios new_termios;
static int peek_character=-1;
static int peek_char=-1;
int kbhit(){
unsigned char ch=0;
int nread=0;
if(peek_character!=-1)
if(peek_char!=-1)
return 1;
int flag=fcntl(0,F_GETFL);
flag|=O_NONBLOCK;
fcntl(0,F_SETFL,flag);
fcntl(0,F_SETFL,flag|O_NONBLOCK);
nread=read(0,&ch,1);
flag&=(~O_NONBLOCK);
fcntl(0,F_SETFL,flag);
if(nread==1)
{
peek_character=ch;
if(nread==1){
peek_char=ch;
return 1;
}
return 0;
@@ -33,10 +30,9 @@ int kbhit(){
int getch(){
int ch=0;
if(peek_character!=-1)
{
ch=peek_character;
peek_character=-1;
if(peek_char!=-1){
ch=peek_char;
peek_char=-1;
return ch;
}
read(0,&ch,1);
@@ -57,10 +53,13 @@ extern "C" nasal_ref nas_noblock(std::vector<nasal_ref>& args,nasal_gc& gc){
}
extern "C" nasal_ref nas_init(std::vector<nasal_ref>& args,nasal_gc& gc){
#ifndef _WIN32
tcflush(0,TCIOFLUSH);
tcgetattr(0,&init_termios);
new_termios=init_termios;
new_termios.c_lflag&=~(ICANON|ECHO|ECHONL);
new_termios.c_cc[VMIN]=0;
// vmin=0 is nonblock input, but in wsl there is a bug that will block input
// so we use fcntl to write the nonblock input
new_termios.c_cc[VMIN]=1;
new_termios.c_cc[VTIME]=0;
tcsetattr(0,TCSANOW,&new_termios);
#endif
@@ -68,8 +67,8 @@ extern "C" nasal_ref nas_init(std::vector<nasal_ref>& args,nasal_gc& gc){
}
extern "C" nasal_ref nas_close(std::vector<nasal_ref>& args,nasal_gc& gc){
#ifndef _WIN32
tcsetattr(0,TCSANOW,&init_termios);
tcflush(0,TCIOFLUSH);
tcsetattr(0,TCSANOW,&init_termios);
#endif
return nil;
}