first version of textlog with GUI

introducing generic "view" with two instantiations: stdout and textlist

common/utils/T/tracer/utils.c

@@ -0,0 +1,61 @@
+#include "utils.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <time.h>
+
+void new_thread(void *(*f)(void *), void *data)
+{
+  pthread_t t;
+  pthread_attr_t att;
+
+  if (pthread_attr_init(&att))
+    { fprintf(stderr, "pthread_attr_init err\n"); exit(1); }
+  if (pthread_attr_setdetachstate(&att, PTHREAD_CREATE_DETACHED))
+    { fprintf(stderr, "pthread_attr_setdetachstate err\n"); exit(1); }
+  if (pthread_attr_setstacksize(&att, 10000000))
+    { fprintf(stderr, "pthread_attr_setstacksize err\n"); exit(1); }
+  if (pthread_create(&t, &att, f, data))
+    { fprintf(stderr, "pthread_create err\n"); exit(1); }
+  if (pthread_attr_destroy(&att))
+    { fprintf(stderr, "pthread_attr_destroy err\n"); exit(1); }
+}
+
+void sleepms(int ms)
+{
+  struct timespec t;
+
+  t.tv_sec = ms / 1000;
+  t.tv_nsec = (ms % 1000) * 1000000L;
+
+  /* TODO: deal with EINTR */
+  if (nanosleep(&t, NULL)) abort();
+}
+
+/****************************************************************************/
+/* list                                                                     */
+/****************************************************************************/
+
+list *list_remove_head(list *l)
+{
+  list *ret;
+  if (l == NULL) return NULL;
+  ret = l->next;
+  if (ret != NULL) ret->last = l->last;
+  free(l);
+  return ret;
+}
+
+list *list_append(list *l, void *data)
+{
+  list *new = calloc(1, sizeof(list));
+  if (new == NULL) abort();
+  new->data = data;
+  if (l == NULL) {
+    new->last = new;
+    return new;
+  }
+  l->last->next = new;
+  l->last = new;
+  return l;
+}