X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=int%2Fint.c;h=6ef8cc45b7afc70056053788c40979ece5c83536;hb=f63e9891ef344e992a8a837cd3301ba3209f1e5c;hp=9dc52a248f3771f84c1bfc646d9e412851912ca4;hpb=2936e3ba44acd430c2b3290801ab1ffa700a8c25;p=mTask.git

diff --git a/int/int.c b/int/int.c
index 9dc52a2..6ef8cc4 100644
--- a/int/int.c
+++ b/int/int.c
@@ -1,9 +1,17 @@
 #include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
 
 #include "mTaskSymbols.h"
 
+#define MAXTASKS 5
+#define MAXTASKSIZE 1024
+#define MAXSDS 50
 #define STACKSIZE 1024
-#define PROGRAMSIZE 1024
 
 #define DEBUG
 #ifdef DEBUG
@@ -12,17 +20,78 @@
 #define debug(s, ...) ;
 #endif
 
-#define die(s, ...) {fprintf(stderr, s, ##__VA_ARGS__); return 1;}
+#define pdie(s) {perror(s); exit(1);}
+#define die(s, ...) {fprintf(stderr, s, ##__VA_ARGS__); exit(1);}
 
-char program[PROGRAMSIZE+1] = {0};
-int stack[STACKSIZE+1] = {0};
+char tasks[MAXTASKS][MAXTASKSIZE] = {0};
+
+void killHandler(int i)
+{
+	printf("%s caught, Bye...\n", strsignal(i));
+	exit(1);
+}
+
+bool input_available(int fd){
+	struct timeval tv;
+	fd_set fds;
+	tv.tv_sec = 0;
+	tv.tv_usec = 0;
+	FD_ZERO(&fds);
+	FD_SET(fd, &fds);
+	if(select(fd+1, &fds, NULL, NULL, &tv) == -1){
+		pdie("select");
+	}
+	return FD_ISSET(fd, &fds);
+}
 
 int main(void)
 {
-	char c;
-	int pl, sp, pc;
+	uint8_t c;
+//	char taskindex = 0;
+//	int pl, sp, pc;
+//
+	int fd_in = 0;
+	int next_free_new_task = 0;
+	uint16_t tasklen = 0;
+
+	//Register signal handler
+	if(signal(SIGINT, killHandler) == SIG_ERR){
+		die("Couldn't register signal handler...\n");
+	}
+	if(signal(SIGTERM, killHandler) == SIG_ERR){
+		die("Couldn't register signal handler...\n");
+	}
+
+	while(true){
+		if(input_available(fd_in)){
+			printf("Receiving input\n");
+			read(fd_in, &c, 1);
+			if((char) c == 's'){
+				debug("Receiving an sds\n");
+			} else if((char) c == 't'){
+				read(fd_in, &c, 1);
+				tasklen = 256*c;
+				read(fd_in, &c, 1);
+				tasklen += c;
+				if(tasklen > MAXTASKSIZE){
+					die("Task is too long: %d\n", tasklen);
+				}
+				for(int i = 0; i<tasklen; i++){
+					debug("Read %d\n", i);
+					read(fd_in, tasks[next_free_new_task]+i, 1);
+					read(fd_in, tasks[next_free_new_task]+i, 1);
+					debug("t[][%i]: %d\n", i, tasks[next_free_new_task][i]);
+				}
+				debug("Receiving a task of length %d\n", tasklen);
+			} else {
+				die("Unknown message: %c?\n", c);
+			}
+			exit(1);
+		}
+		usleep(1);
+	}
 
-	//Read program
+/*	//Read program
 	pc = 0;
 	while ((c = getchar()) != EOF && pc < PROGRAMSIZE)
 		program[pc++] = c;
@@ -37,72 +106,71 @@ int main(void)
 	sp = 0;
 	while(pc != pl){
 		switch(program[pc++]){
-		case BCNop:;
+		case BCNOP:;
 			break;
-		case BCPush:
+		case BCPUSH:
 			stack[sp++] = program[pc++];
 			break;
-		case BCPop:
+		case BCPOP:
 			sp--;
 			break;
-		case BCNot:
+		case BCNOT:
 			stack[sp] = stack[sp] > 0 ? 0 : 1;
 			break;
-		case BCAdd:
+		case BCADD:
 			stack[sp-1] = stack[sp] + stack[sp-1];
 			sp -= 1;
 			break;
-		case BCSub:
+		case BCSUB:
 			stack[sp-1] = stack[sp] - stack[sp-1];
 			sp -= 1;
 			break;
-		case BCMul:
+		case BCMUL:
 			stack[sp-1] = stack[sp] * stack[sp-1];
 			sp -= 1;
 			break;
-		case BCDiv:
+		case BCDIV:
 			stack[sp-1] = stack[sp] / stack[sp-1];
 			sp -= 1;
 			break;
-		case BCAnd:
+		case BCAND:
 			stack[sp-1] = stack[sp] && stack[sp-1];
 			sp -= 1;
 			break;
-		case BCOr:
+		case BCOR:
 			stack[sp-1] = stack[sp] || stack[sp-1];
 			sp -= 1;
 			break;
-		case BCEq:
+		case BCEQ:
 			stack[sp-1] = stack[sp] == stack[sp-1];
 			sp -= 1;
 			break;
-		case BCNeq:
+		case BCNEQ:
 			stack[sp-1] = stack[sp] != stack[sp-1];
 			sp -= 1;
 			break;
-		case BCLes:
-			stack[sp-1] = stack[sp] < stack[sp-1];
+		case BCLES: stack[sp-1] = stack[sp] < stack[sp-1];
 			sp -= 1;
 			break;
-		case BCGre:
+		case BCGRE:
 			stack[sp-1] = stack[sp] > stack[sp-1];
 			sp -= 1;
 			break;
-		case BCLeq:
+		case BCLEQ:
 			stack[sp-1] = stack[sp] <= stack[sp-1];
 			sp -= 1;
 			break;
-		case BCGeq:
+		case BCGEQ:
 			stack[sp-1] = stack[sp] >= stack[sp-1];
 			sp -= 1;
 			break;
-		case BCJmp:
+		case BCJMP:
 			pc = pc + program[pc];
 			break;
-		case BCJmpT:
+		case BCJMPT:
 			pc += stack[sp] ? program[pc] : 1;
 			break;
-		case BCJmpF:
+		case BCJMPF:
 			pc += stack[sp] ? 1 : program[pc];
 			break;
 		case BCSERIALAVAIL:
@@ -129,5 +197,6 @@ int main(void)
 			die("Unrecognized command: %X\n", program[--pc]);
 		}
 	}
+*/
 	return 0;
 }