T tracer: add a new tool: extract_input_subframe

This program extracts a given subframe from a recorded trace.
2017-08-20 22:52:35 +02:00
parent 17b9a9e917
commit 0293141817
2 changed files with 116 additions and 2 deletions
@@ -0,0 +1,109 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include "database.h"
+#include "event.h"
+#include "config.h"
+
+void usage(void)
+{
+  printf(
+"usage: [options] <file> <frame> <subframe>\n"
+"options:\n"
+"    -d <database file>        this option is mandatory\n"
+"    -v                        verbose\n"
+  );
+  exit(1);
+}
+
+int main(int n, char **v)
+{
+  char *database_filename = NULL;
+  void *database;
+  int i;
+  int input_event_id;
+  database_event_format f;
+  char *file = NULL;
+  int fd;
+  int frame = -1, subframe = -1;
+  int frame_arg, subframe_arg, buffer_arg;
+  int verbose = 0;
+
+  for (i = 1; i < n; i++) {
+    if (!strcmp(v[i], "-h") || !strcmp(v[i], "--help")) usage();
+    if (!strcmp(v[i], "-d"))
+      { if (i > n-2) usage(); database_filename = v[++i]; continue; }
+    if (!strcmp(v[i], "-v")) { verbose = 1; continue; }
+    if (file == NULL) { file = v[i]; continue; }
+    if (frame == -1) { frame = atoi(v[i]); continue; }
+    if (subframe == -1) { subframe = atoi(v[i]); continue; }
+    usage();
+  }
+  if (file == NULL || frame == -1 || subframe == -1) usage();
+
+  if (database_filename == NULL) {
+    printf("ERROR: provide a database file (-d)\n");
+    exit(1);
+  }
+
+  database = parse_database(database_filename);
+
+  load_config_file(database_filename);
+
+  input_event_id = event_id_from_name(database, "ENB_PHY_INPUT_SIGNAL");
+  f = get_format(database, input_event_id);
+
+  frame_arg = subframe_arg = buffer_arg = -1;
+  for (i = 0; i < f.count; i++) {
+    if (!strcmp(f.name[i], "frame")) {
+      if (frame_arg != -1) goto err;
+      if (strcmp(f.type[i], "int")) goto err;
+      frame_arg = i;
+    }
+    if (!strcmp(f.name[i], "subframe")) {
+      if (subframe_arg != -1) goto err;
+      if (strcmp(f.type[i], "int")) goto err;
+      subframe_arg = i;
+    }
+    if (!strcmp(f.name[i], "rxdata")) {
+      if (buffer_arg != -1) goto err;
+      if (strcmp(f.type[i], "buffer")) goto err;
+      buffer_arg = i;
+    }
+    continue;
+err:
+    printf("cannot deal with ENB_PHY_INPUT_SIGNAL from database file\n");
+    exit(1);
+  }
+  if (frame_arg == -1 || subframe_arg == -1 || buffer_arg == -1) goto err;
+
+  fd = open(file, O_RDONLY);
+  if (fd == -1) { perror(file); exit(1); }
+
+  /* get wanted frame/subframe */
+  while (1) {
+    char v[T_BUFFER_MAX];
+    event e;
+    e = get_event(fd, v, database);
+    if (e.type == -1) break;
+    if (e.type != input_event_id) continue;
+    if (verbose)
+      printf("input frame %d subframe %d size %d\n",
+             e.e[frame_arg].i, e.e[subframe_arg].i, e.e[buffer_arg].bsize);
+    if (!(frame == e.e[frame_arg].i && subframe == e.e[subframe_arg].i))
+      continue;
+#if 0
+for (i = 0; i < e.e[buffer_arg].bsize/2; i++) {
+short *x = e.e[buffer_arg].b;
+x[i] *= 14;
+}
+#endif
+    fwrite(e.e[buffer_arg].b, e.e[buffer_arg].bsize, 1, stdout);
+    fflush(stdout);
+    return 0;
+  }
+
+  printf("frame %d subframe %d not found\n", frame, subframe);
+  return 0;
+}