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feat(builtin): add clear command

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iridiumR 2022-09-18 14:53:38 +08:00
parent 0ecd13c0bb
commit c57d46a171
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GPG key ID: 5574BE4450D55618
2 changed files with 17 additions and 8 deletions
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14
builtin.c
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@ -2,7 +2,7 @@
* @Author: 1ridic * @Author: 1ridic
* @Date: 2022-09-18 14:16:19 * @Date: 2022-09-18 14:16:19
* @Last Modified by: 1ridic * @Last Modified by: 1ridic
* @Last Modified time: 2022-09-18 14:28:01 * @Last Modified time: 2022-09-18 14:52:17
*/ */
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@ -12,17 +12,20 @@
int dish_cd(char **args); int dish_cd(char **args);
int dish_help(char **args); int dish_help(char **args);
int dish_exit(char **args); int dish_exit(char **args);
int dish_clear(char **args);
char* builtin_cmd[] = { char* builtin_cmd[] = {
"cd", "cd",
"help", "help",
"exit" "exit",
"clear"
}; };
int (*builtin_func[]) (char **) = { int (*builtin_func[]) (char **) = {
&dish_cd, &dish_cd,
&dish_help, &dish_help,
&dish_exit &dish_exit,
&dish_clear
}; };
int dish_cd(char **args) int dish_cd(char **args)
@ -51,3 +54,8 @@ int dish_exit(char **args)
int getBuiltinNum() { int getBuiltinNum() {
return sizeof(builtin_cmd) / sizeof(char *); return sizeof(builtin_cmd) / sizeof(char *);
} }
int dish_clear(char **args){
fprintf(stdout,"\033[H\033[J");
return 0;
}

11
main.c
View file

@ -2,7 +2,7 @@
* @Author: 1ridic * @Author: 1ridic
* @Date: 2022-09-18 14:13:59 * @Date: 2022-09-18 14:13:59
* @Last Modified by: 1ridic * @Last Modified by: 1ridic
* @Last Modified time: 2022-09-18 14:21:48 * @Last Modified time: 2022-09-18 14:53:04
*/ */
#include <signal.h> #include <signal.h>
#include <stdio.h> #include <stdio.h>
@ -14,17 +14,18 @@ char volatile isWaiting = 0;
void intHandler(int dummy) { void intHandler(int dummy) {
if (isWaiting) { if (isWaiting) {
return; return;
printf("\nSIGINT exit.\n"); fprintf(stderr,"\nSIGINT exit.\n");
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
} }
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
/* soft irq */
signal(SIGINT, intHandler); signal(SIGINT, intHandler);
/* clear screen */
fprintf(stdout,"\033[H\033[J");
#ifdef DEBUG #ifdef DEBUG
printf("DEBUG is defined\n"); fprintf(stdout,"DEBUG is defined\n");
#endif #endif
while (1) { while (1) {
loop(); loop();