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remake: do it @ncurses & readline

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This commit is contained in:
Edward Emelianov
2020-12-22 18:42:27 +03:00
parent d4e0ae967d
commit b87fb2e22a
9 changed files with 477 additions and 114 deletions
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83
main.c
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@@ -21,61 +21,72 @@
#include <string.h> // strcmp
#include <usefull_macros.h>
#include "cmdlnopts.h"
#include "ncurses_and_readline.h"
#include "tty.h"
// we don't need more than 64 bytes for TTY input buffer - USB CDC can't transmit more in one packet
#define BUFLEN 65
#define BUFLEN 4096
static TTY_descr *dev = NULL;
static ttyd dtty = {.dev = NULL, .mutex = PTHREAD_MUTEX_INITIALIZER};
void signals(int signo){
restore_console();
if(dev) close_tty(&dev);
if(dtty.dev){
pthread_mutex_lock(&dtty.mutex);
close_tty(&dtty.dev);
}
deinit_ncurses();
deinit_readline();
exit(signo);
}
typedef enum{
EOL_N = 0,
EOL_R,
EOL_RN
} eol_t;
int main(int argc, char **argv){
glob_pars *G = NULL; // default parameters see in cmdlnopts.c
initial_setup();
G = parse_args(argc, argv);
dev = new_tty(G->ttyname, G->speed, BUFLEN);
if(!dev || !(dev = tty_open(dev, 1))) return 1; // open exclusively
eol_t eol = EOL_N;
if(strcmp(G->eol, "n")){ // change eol
if(strcmp(G->eol, "r") == 0) eol = EOL_R;
else if(strcmp(G->eol, "rn") == 0) eol = EOL_RN;
else ERRX("End of line should be \"r\", \"n\" or \"rn\"");
if(G->tmoutms < 0) ERRX("Timeout should be >= 0");
dtty.dev = new_tty(G->ttyname, G->speed, BUFLEN);
if(!dtty.dev || !(dtty.dev = tty_open(dtty.dev, 1))){
WARN("Can't open device %s", G->ttyname);
signals(1);
}
init_ncurses();
init_readline();
const char *EOL = "\n";
if(strcasecmp(G->eol, "n")){
if(strcasecmp(G->eol, "r") == 0) EOL = "\r";
else if(strcasecmp(G->eol, "rn") == 0) EOL = "\r\n";
else if(strcasecmp(G->eol, "nr") == 0) EOL = "\n\r";
else ERRX("End of line should be \"r\", \"n\" or \"rn\" or \"nr\"");
}
strcpy(dtty.eol, EOL);
int eollen = strlen(EOL);
dtty.eollen = eollen;
signal(SIGTERM, signals); // kill (-15) - quit
signal(SIGHUP, signals); // hup - quit
signal(SIGINT, signals); // ctrl+C - quit
signal(SIGQUIT, signals); // ctrl+\ - quit
signal(SIGTSTP, SIG_IGN); // ignore ctrl+Z
setup_con();
const char r = '\r';
pthread_t writer;
if(pthread_create(&writer, NULL, cmdline, (void*)&dtty)) ERR("pthread_create()");
settimeout(G->tmoutms);
while(1){
int b;
int l = read_ttyX(dev, &b);
if(l < 0) signals(9);
if(b > -1){
char c = (char)b;
if(c == '\n' && eol != EOL_N){ // !\n
if(eol == EOL_R) c = '\r'; // \r
else if(write_tty(dev->comfd, &r, 1)) WARN("write_tty()"); // \r\n
}
if(write_tty(dev->comfd, &c, 1)) WARN("write_tty()");
}
if(l){
printf("%s", dev->buf);
fflush(stdout);
// if(fout) copy_buf_to_file(buff, &oldcmd);
}
//if(0 == pthread_mutex_lock(&dtty.mutex)){
int l = Read_tty(dtty.dev);
if(l){
char *buf = dtty.dev->buf;
char *eol = NULL, *estr = buf + l;
do{
eol = strstr(buf, EOL);
if(eol){
*eol = 0;
add_ttydata(buf);
buf = eol + eollen;
}else{
add_ttydata(buf);
}
}while(eol && buf < estr);
}else if(l < 0) signals(9);
// pthread_mutex_unlock(&dtty.mutex);
//}
}
// never reached
return 0;