tb Handle keyboard inside of the shell interactive mode

base/scripts/init.tb

@@ -1,2 +1,3 @@
 @print "this is an init script!"
 base:/bin/pctl ls
+base:/bin/tb -m interactive

user/init/main.c

@@ -10,45 +10,25 @@
 #include <dlmalloc/malloc.h>
 #include <errors.h>
 
-#define SUBPROC_PIPE_OUT 0x1f
-
 uint64_t PID;
 
+void tb_runinitscript(void) {
+  char *tbargs[] = { "-m", "runfile", "-f", "base:/scripts/init.tb", "-logcmds", "yes" };
+  int32_t tb = processctl(-1, PCTL_SPAWN, (uint64_t)"base:/bin/tb", (uint64_t)&tbargs, ARRLEN(tbargs));
+  
+  ipcpipe(tb, IPCPIPE_IN, IPCPIPE_ADD_BCAST, NULL, 1);
+
+  processctl(tb, PCTL_RUN, 0, 0, 0);
+
+  while(processctl(tb, PCTL_POLLSTATE, 0, 0, 0) != 4);
+}
+
 void main(void) {
   PID = (uint64_t)processctl(-1, PCTL_GETPID, 0, 0, 0);
 
-  ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_MAKE, NULL, 0);
+  tb_runinitscript();
 
-  char *tbargs[] = { "-m", "runfile", "-f", "base:/scripts/init.tb", "-logcmds", "yes" };
-  int32_t tb = processctl(-1, PCTL_SPAWN, (uint64_t)"base:/bin/tb", (uint64_t)&tbargs, ARRLEN(tbargs));
-  ipcpipe(tb, IPCPIPE_OUT, IPCPIPE_REPLACE, (uint8_t *)PID, SUBPROC_PIPE_OUT);
-
-  ipcpipe(IPCPIPE_SELFPID, 10, IPCPIPE_MAKE, NULL, 0);
-  ipcpipe(IPCPIPE_SELFPID, 10, IPCPIPE_ADD_BCAST, NULL, 1);
-
-  #define OUTBUF_MAX 1024
-  char *outbuf = dlmalloc(OUTBUF_MAX);
-
-  processctl(tb, PCTL_RUN, 0, 0, 0);
-
-  for(;;) {
-    string_memset(outbuf, 0, OUTBUF_MAX);
-    int32_t nrd = ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_READ, (uint8_t *)outbuf, sizeof(outbuf));
-    if (nrd > 0) {
-      uprintf("%s", outbuf);
-    }
-
-    int32_t kbchr;
-    int32_t read = ipcpipe(IPCPIPE_SELFPID, 10, IPCPIPE_READ, (uint8_t *)&kbchr, sizeof(kbchr));
-    if (read > 0) {
-      uint8_t c = kbchr & 0xff;
-      if (string_chr_isascii(c)) {
-        if (c != 0) {
-          ipcpipe(tb, IPCPIPE_IN, IPCPIPE_WRITE, &c, 1);
-        }
-      }
-    }
-  }
+  uprintf("Shell exited! Please reboot the system.\n");
 
   for(;;);
 }

user/pctl/main.c

@@ -15,6 +15,6 @@ void main(void) {
   if (string_strcmp(cmd, "ls") == 0) {
     pctl_ls();
   } else {
-    uprintf("pctl: unknown command\n");
+    uprintf("pctl: unknown command %s\n", cmd);
   }
 }

user/tb/interp.c

@@ -13,7 +13,7 @@
 #include "interp.h"
 #include "runtime.h"
 
-#define SUBPROC_PIPE_OUT 0x1f
+/* #define SUBPROC_PIPE_OUT 31 */
 
 extern uint64_t PID;
 
@@ -210,34 +210,18 @@ bool interp_runstring(const char *string, InterpResult **res, bool logcmds) {
         argtk = argtk->next;
       }
 
-      #define OUTBUF_MAX 1024
-      char *outbuf = dlmalloc(OUTBUF_MAX);
-      string_memset(outbuf, 0, OUTBUF_MAX);
-
-      ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_MAKE, NULL, 0);
-
-      int32_t app = processctl(-1, PCTL_SPAWN, (uint64_t)(char *)appname, (uint64_t)args1, argslen1);
+      int32_t app = processctl(-1, PCTL_SPAWN, (uint64_t)appname, (uint64_t)args1, argslen1);
       if (app < 0) {
         usprintf(RES.errmsg, "Could not run %s: %s\n", appname, ERRSTRING(app));
         ok = false;
         goto cleanup;
       }
 
-      ipcpipe(app, IPCPIPE_OUT, IPCPIPE_REPLACE, (uint8_t *)PID, SUBPROC_PIPE_OUT);
-      ipcpipe(app, IPCPIPE_IN, IPCPIPE_REPLACE, (uint8_t *)PID, IPCPIPE_IN);
       processctl(app, PCTL_RUN, 0, 0, 0);
 
-      do {
-        int32_t nrd = ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_READ, (uint8_t *)outbuf, OUTBUF_MAX);
-        if (nrd > 0) {
-          uprintf("%s", outbuf);
-          string_memset(outbuf, 0, OUTBUF_MAX);
-        }
-      } while(processctl(app, PCTL_POLLSTATE, 0, 0, 0) != 4);
+      while(processctl(app, PCTL_POLLSTATE, 0, 0, 0) != 4);
 
       cleanup:
-        ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_DELETE, NULL, 0);
-        dlfree(outbuf);
         for (size_t j = 0; j < argslen1; j++) {
           dlfree(args1[j]);
         }

user/tb/main.c

@@ -15,6 +15,11 @@
 #include <util/util.h>
 #include "interp.h"
 
+// keys
+#define C(X) ((X)-'@')
+
+#define LINEBUF_MAX 1024
+
 uint64_t PID;
 
 struct {
@@ -26,8 +31,6 @@ struct {
   bool logcmds;
 } CONFIG;
 
-#define LINEBUF_MAX 1024
-
 static Arg ARGS[] = {
   ARG("-m", ARG_STRING, &CONFIG.modestr),
   ARG("-f", ARG_STRING, &CONFIG.filepath),
@@ -99,19 +102,40 @@ void do_mode_interactive(void) {
   char linebuf[LINEBUF_MAX];
   size_t cursor;
   for(;;) {
+  begin:
     uprintf("tb# ");
 
     cursor = 0;
     string_memset(linebuf, 0, LINEBUF_MAX);
-    char c = 0;
-    while (c != '\n') {
-      int32_t rd = ipcpipe(PID, IPCPIPE_IN, IPCPIPE_READ, (uint8_t *)&c, 1);
-      if (rd > 0 && cursor < LINEBUF_MAX) {
-        linebuf[cursor++] = c;
-        uprintf("%c", c);
+
+    int32_t kbchr = 0;
+    for (;;) {
+      int32_t nrd = ipcpipe(PID, IPCPIPE_IN, IPCPIPE_READ, (uint8_t *)&kbchr, sizeof(kbchr));
+      if (nrd > 0) {
+        switch (kbchr) {
+          case C('C'):
+          case 0xE9:
+            uprintf("\n");
+            goto begin;
+            break;
+        }
+
+        char chr = kbchr & 0xFF;
+
+        if (chr == '\n') {
+          break;
+        }
+
+        if (string_chr_isascii(chr) && chr != 0 && cursor < LINEBUF_MAX) {
+          linebuf[cursor++] = chr;
+          uprintf("%c", chr);
+        }
       }
     }
-    linebuf[cursor - 1] = '\0';
+
+    if (cursor < LINEBUF_MAX) {
+      linebuf[cursor] = '\0';
+    }
     uprintf("\n");
     InterpResult *res;
     if (!interp_runstring(linebuf, &res, CONFIG.logcmds)) {