From 0eb0325b96a7eb5b585370b552c77b2363b82ef3 Mon Sep 17 00:00:00 2001
From: Cedric Roux <cedric.roux@eurecom.fr>
Date: Fri, 15 Nov 2024 16:02:52 +0100
Subject: [PATCH] T tracer: support float types in traces

---
 common/utils/T/tracer/event.c          | 4 ++++
 common/utils/T/tracer/event.h          | 2 ++
 common/utils/T/tracer/logger/textlog.c | 4 +++-
 common/utils/T/tracer/utils.c          | 6 ++++++
 common/utils/T/tracer/utils.h          | 1 +
 5 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/common/utils/T/tracer/event.c b/common/utils/T/tracer/event.c
index f75af1e398..61fb12dd2a 100644
--- a/common/utils/T/tracer/event.c
+++ b/common/utils/T/tracer/event.c
@@ -94,6 +94,10 @@ event new_event(int type, int length, char *buffer, void *database)
       e.e[i].type = EVENT_ULONG;
       e.e[i].ul = *(unsigned long *)(&buffer[offset]);
       offset += sizeof(unsigned long);
+    } else if (!strcmp(f.type[i], "float")) {
+      e.e[i].type = EVENT_FLOAT;
+      e.e[i].f = *(float *)(&buffer[offset]);
+      offset += sizeof(float);
     } else if (!strcmp(f.type[i], "string")) {
       e.e[i].type = EVENT_STRING;
       e.e[i].s = &buffer[offset];
diff --git a/common/utils/T/tracer/event.h b/common/utils/T/tracer/event.h
index 4e631fbb49..e3d7637bf4 100644
--- a/common/utils/T/tracer/event.h
+++ b/common/utils/T/tracer/event.h
@@ -13,6 +13,7 @@
 enum event_arg_type {
   EVENT_INT,
   EVENT_ULONG,
+  EVENT_FLOAT,
   EVENT_STRING,
   EVENT_BUFFER
 };
@@ -23,6 +24,7 @@ typedef struct {
   union {
     int i;
     unsigned long ul;
+    float f;
     char *s;
     struct {
       int bsize;
diff --git a/common/utils/T/tracer/logger/textlog.c b/common/utils/T/tracer/logger/textlog.c
index 8217c2b981..2003ff4233 100644
--- a/common/utils/T/tracer/logger/textlog.c
+++ b/common/utils/T/tracer/logger/textlog.c
@@ -11,7 +11,7 @@
 
 enum format_item_type {
   INSTRING,
-  INT, ULONG, STRING, BUFFER };
+  INT, ULONG, FLOAT, STRING, BUFFER };
 
 struct format_item {
   enum format_item_type type;
@@ -67,6 +67,7 @@ static void _event(void *p, event e)
   case INSTRING: PUTS(&l->o, l->f[i].s); break;
   case INT:      PUTI(&l->o, e.e[l->f[i].event_arg].i); break;
   case ULONG:    PUTUL(&l->o, e.e[l->f[i].event_arg].ul); break;
+  case FLOAT:    PUTF(&l->o, e.e[l->f[i].event_arg].f); break;
   case STRING:   PUTS_CLEAN(&l->o, e.e[l->f[i].event_arg].s); break;
   case BUFFER:
     PUTS(&l->o, "{buffer size:");
@@ -106,6 +107,7 @@ static int find_argument(char *name, database_event_format f,
   *event_arg = i;
   if (!strcmp(f.type[i], "int"))         *it = INT;
   else if (!strcmp(f.type[i], "ulong"))  *it = ULONG;
+  else if (!strcmp(f.type[i], "float"))  *it = FLOAT;
   else if (!strcmp(f.type[i], "string")) *it = STRING;
   else if (!strcmp(f.type[i], "buffer")) *it = BUFFER;
   else return 0;
diff --git a/common/utils/T/tracer/utils.c b/common/utils/T/tracer/utils.c
index 39e04fb973..78b01a2516 100644
--- a/common/utils/T/tracer/utils.c
+++ b/common/utils/T/tracer/utils.c
@@ -276,3 +276,9 @@ void PUTUL(OBUF *o, unsigned long l) {
   sprintf(s, "%lu", l);
   PUTS(o, s);
 }
+
+void PUTF(OBUF *o, float f) {
+  char s[256];
+  sprintf(s, "%g", f);
+  PUTS(o, s);
+}
diff --git a/common/utils/T/tracer/utils.h b/common/utils/T/tracer/utils.h
index 6784117fa6..e1055d4efa 100644
--- a/common/utils/T/tracer/utils.h
+++ b/common/utils/T/tracer/utils.h
@@ -50,5 +50,6 @@ void PUTS_CLEAN(OBUF *o, char *s);
 void PUTI(OBUF *o, int i);
 void PUTX2(OBUF *o, int i);
 void PUTUL(OBUF *o, unsigned long i);
+void PUTF(OBUF *o, float f);
 
 #endif /* _UTILS_H_ */