introducing a generic logger "class"

common/utils/T/tracer/logger/Makefile

 CC=gcc
 CFLAGS=-Wall -g -pthread -I..
 
-OBJS=textlog.o framelog.o ttilog.o
+OBJS=logger.o textlog.o framelog.o ttilog.o
 
 logger.a: $(OBJS)
 	ar cr logger.a $(OBJS)

common/utils/T/tracer/logger/framelog.c

-#include "framelog.h"
+#include "logger.h"
+#include "logger_defs.h"
 #include "handler.h"
 #include "database.h"
 #include <stdlib.h>
@@ -7,14 +8,10 @@
 #include <math.h>
 
 struct framelog {
-  char *event_name;
+  struct logger common;
   void *database;
-  unsigned long handler_id;
   int subframe_arg;
   int buffer_arg;
-  /* list of views */
-  view **v;
-  int vsize;
   float *x;
   float *buffer;
   int blength;
@@ -47,8 +44,8 @@ static void _event(void *p, event e)
     for (i = 0; i < l->blength; i++)
       l->x[i] = i;
     /* update 'length' of views */
-    for (i = 0; i < l->vsize; i++)
-      l->v[i]->set(l->v[i], "length", l->blength);
+    for (i = 0; i < l->common.vsize; i++)
+      l->common.v[i]->set(l->common.v[i], "length", l->blength);
   }
 
   /* TODO: compute the LOGs in the plotter (too much useless computations) */
@@ -59,11 +56,11 @@ static void _event(void *p, event e)
   }
 
   if (subframe == 9)
-    for (i = 0; i < l->vsize; i++)
-      l->v[i]->append(l->v[i], l->x, l->buffer, l->blength);
+    for (i = 0; i < l->common.vsize; i++)
+      l->common.v[i]->append(l->common.v[i], l->x, l->buffer, l->blength);
 }
 
-framelog *new_framelog(event_handler *h, void *database,
+logger *new_framelog(event_handler *h, void *database,
     char *event_name, char *subframe_varname, char *buffer_varname)
 {
   struct framelog *ret;
@@ -73,12 +70,13 @@ framelog *new_framelog(event_handler *h, void *database,
 
   ret = calloc(1, sizeof(struct framelog)); if (ret == NULL) abort();
 
-  ret->event_name = strdup(event_name); if (ret->event_name == NULL) abort();
+  ret->common.event_name = strdup(event_name);
+  if (ret->common.event_name == NULL) abort();
   ret->database = database;
 
   event_id = event_id_from_name(database, event_name);
 
-  ret->handler_id = register_handler_function(h, event_id, _event, ret);
+  ret->common.handler_id = register_handler_function(h,event_id,_event,ret);
 
   f = get_format(database, event_id);
 
@@ -112,11 +110,3 @@ framelog *new_framelog(event_handler *h, void *database,
 
   return ret;
 }
-
-void framelog_add_view(framelog *_l, view *v)
-{
-  struct framelog *l = _l;
-  l->vsize++;
-  l->v = realloc(l->v, l->vsize * sizeof(view *)); if (l->v == NULL) abort();
-  l->v[l->vsize-1] = v;
-}

common/utils/T/tracer/logger/framelog.h

-#ifndef _FRAMELOG_H_
-#define _FRAMELOG_H_
-
-typedef void framelog;
-
-framelog *new_framelog(void *event_handler, void *database,
-    char *event_name, char *subframe_varname, char *buffer_varname);
-
-#include "view/view.h"
-
-void framelog_add_view(framelog *l, view *v);
-
-#endif /* _FRAMELOG_H_ */

common/utils/T/tracer/logger/logger.c

+#include "logger.h"
+#include "logger_defs.h"
+#include <stdlib.h>
+
+void logger_add_view(logger *_l, view *v)
+{
+  struct logger *l = _l;
+  l->vsize++;
+  l->v = realloc(l->v, l->vsize * sizeof(view *)); if (l->v == NULL) abort();
+  l->v[l->vsize-1] = v;
+}

common/utils/T/tracer/logger/logger.h

+#ifndef _LOGGER_H_
+#define _LOGGER_H_
+
+typedef void logger;
+
+logger *new_framelog(void *event_handler, void *database,
+    char *event_name, char *subframe_varname, char *buffer_varname);
+logger *new_textlog(void *event_handler, void *database,
+    char *event_name, char *format);
+logger *new_ttilog(void *event_handler, void *database,
+    char *event_name, char *frame_varname, char *subframe_varname,
+    char *data_varname, int convert_to_dB);
+
+#include "view/view.h"
+
+void logger_add_view(logger *l, view *v);
+
+#endif /* _LOGGER_H_ */

common/utils/T/tracer/logger/logger_defs.h

+#ifndef _LOGGER_DEFS_H_
+#define _LOGGER_DEFS_H_
+
+#include "view/view.h"
+
+struct logger {
+  char *event_name;
+  unsigned long handler_id;
+  /* list of views */
+  view **v;
+  int vsize;
+};
+
+#endif /* _LOGGER_DEFS_H_ */

common/utils/T/tracer/logger/textlog.c

-#include "textlog.h"
+#include "logger.h"
+#include "logger_defs.h"
 #include "handler.h"
 #include "database.h"
 #include "view/view.h"
@@ -22,16 +23,12 @@ struct format_item {
 };
 
 struct textlog {
-  char *event_name;
+  struct logger common;
   char *format;
   void *database;
-  unsigned long handler_id;
   /* parsed format string */
   struct format_item *f;
   int fsize;
-  /* list of views */
-  view **v;
-  int vsize;
   /* local output buffer */
   OBUF o;
 };
@@ -56,7 +53,8 @@ static void _event(void *p, event e)
   }
   PUTC(&l->o, 0);
 
-  for (i = 0; i < l->vsize; i++) l->v[i]->append(l->v[i], l->o.obuf);
+  for (i = 0; i < l->common.vsize; i++)
+    l->common.v[i]->append(l->common.v[i], l->o.obuf);
 }
 
 enum chunk_type { C_ERROR, C_STRING, C_ARG_NAME, C_EVENT_NAME };
@@ -127,7 +125,7 @@ error:
   return (struct chunk){type:C_ERROR};
 }
 
-textlog *new_textlog(event_handler *h, void *database,
+logger *new_textlog(event_handler *h, void *database,
     char *event_name, char *format)
 {
   struct textlog *ret;
@@ -137,13 +135,14 @@ textlog *new_textlog(event_handler *h, void *database,
 
   ret = calloc(1, sizeof(struct textlog)); if (ret == NULL) abort();
 
-  ret->event_name = strdup(event_name); if (ret->event_name == NULL) abort();
+  ret->common.event_name = strdup(event_name);
+  if (ret->common.event_name == NULL) abort();
   ret->format = strdup(format); if (ret->format == NULL) abort();
   ret->database = database;
 
   event_id = event_id_from_name(database, event_name);
 
-  ret->handler_id = register_handler_function(h, event_id, _event, ret);
+  ret->common.handler_id = register_handler_function(h,event_id,_event,ret);
 
   f = get_format(database, event_id);
 
@@ -167,7 +166,7 @@ textlog *new_textlog(event_handler *h, void *database,
       break;
     case C_EVENT_NAME:
       ret->f[ret->fsize].type = INSTRING;
-      ret->f[ret->fsize].s = ret->event_name;
+      ret->f[ret->fsize].s = ret->common.event_name;
       break;
     }
     ret->fsize++;
@@ -179,11 +178,3 @@ error:
   printf("%s:%d: bad format '%s'\n", __FILE__, __LINE__, format);
   abort();
 }
-
-void textlog_add_view(textlog *_l, view *v)
-{
-  struct textlog *l = _l;
-  l->vsize++;
-  l->v = realloc(l->v, l->vsize * sizeof(view *)); if (l->v == NULL) abort();
-  l->v[l->vsize-1] = v;
-}

common/utils/T/tracer/logger/textlog.h

-#ifndef _TEXTLOG_H_
-#define _TEXTLOG_H_
-
-typedef void textlog;
-
-textlog *new_textlog(void *event_handler, void *database,
-    char *event_name, char *format);
-
-#include "view/view.h"
-
-void textlog_add_view(textlog *l, view *v);
-
-#endif /* _TEXTLOG_H_ */

common/utils/T/tracer/logger/ttilog.c

-#include "ttilog.h"
+#include "logger.h"
+#include "logger_defs.h"
 #include "event.h"
 #include "database.h"
 #include "handler.h"
@@ -8,15 +9,11 @@
 #include <math.h>
 
 struct ttilog {
-  char *event_name;
+  struct logger common;
   void *database;
-  unsigned long handler_id;
   int frame_arg;
   int subframe_arg;
   int data_arg;
-  /* list of views */
-  view **v;
-  int vsize;
   int convert_to_dB;
 };
 
@@ -37,11 +34,11 @@ static void _event(void *p, event e)
 
   if (l->convert_to_dB) value = 10 * log10(value);
 
-  for (i = 0; i < l->vsize; i++)
-    l->v[i]->append(l->v[i], frame, subframe, value);
+  for (i = 0; i < l->common.vsize; i++)
+    l->common.v[i]->append(l->common.v[i], frame, subframe, value);
 }
 
-ttilog *new_ttilog(event_handler *h, void *database,
+logger *new_ttilog(event_handler *h, void *database,
     char *event_name, char *frame_varname, char *subframe_varname,
     char *data_varname, int convert_to_dB)
 {
@@ -52,13 +49,14 @@ ttilog *new_ttilog(event_handler *h, void *database,
 
   ret = calloc(1, sizeof(struct ttilog)); if (ret == NULL) abort();
 
-  ret->event_name = strdup(event_name); if (ret->event_name == NULL) abort();
+  ret->common.event_name = strdup(event_name);
+  if (ret->common.event_name == NULL) abort();
   ret->database = database;
   ret->convert_to_dB = convert_to_dB;
 
   event_id = event_id_from_name(database, event_name);
 
-  ret->handler_id = register_handler_function(h, event_id, _event, ret);
+  ret->common.handler_id = register_handler_function(h,event_id,_event,ret);
 
   f = get_format(database, event_id);
 
@@ -106,11 +104,3 @@ ttilog *new_ttilog(event_handler *h, void *database,
 
   return ret;
 }
-
-void ttilog_add_view(ttilog *_l, view *v)
-{
-  struct ttilog *l = _l;
-  l->vsize++;
-  l->v = realloc(l->v, l->vsize * sizeof(view *)); if (l->v == NULL) abort();
-  l->v[l->vsize-1] = v;
-}

common/utils/T/tracer/logger/ttilog.h

-#ifndef _TTILOG_H_
-#define _TTILOG_H_
-
-typedef void ttilog;
-
-ttilog *new_ttilog(void *event_handler, void *database,
-    char *event_name, char *frame_varname, char *subframe_varname,
-    char *data_varname, int convert_to_dB);
-
-#include "view/view.h"
-
-void ttilog_add_view(ttilog *l, view *v);
-
-#endif /* _TTILOG_H_ */

common/utils/T/tracer/textlog.c

@@ -7,7 +7,7 @@
 #include "database.h"
 #include "event.h"
 #include "handler.h"
-#include "logger/textlog.h"
+#include "logger/logger.h"
 #include "view/view.h"
 #include "gui/gui.h"
 #include "utils.h"
@@ -125,7 +125,7 @@ int main(int n, char **v)
   char t;
   int l;
   event_handler *h;
-  textlog *textlog;
+  logger *textlog;
   gui *g;
   int gui_mode = 0;
   view *out;
@@ -192,7 +192,7 @@ int main(int n, char **v)
     textlog = new_textlog(h, database, name, desc);
 //        "ENB_UL_CHANNEL_ESTIMATE",
 //        "ev: {} eNB_id [eNB_ID] frame [frame] subframe [subframe]");
-    textlog_add_view(textlog, out);
+    logger_add_view(textlog, out);
     free(name);
     free(desc);
   }