[PATCH v2] Write event stream in file

Ravindra Meena rmeena840 at gmail.com
Fri Jun 21 11:12:37 UTC 2019


---
 misc/record/record-main.c | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/misc/record/record-main.c b/misc/record/record-main.c
index eccf291..9e9eaa3 100644
--- a/misc/record/record-main.c
+++ b/misc/record/record-main.c
@@ -83,6 +83,7 @@ typedef struct client_context {
   uint64_t                       counter;
   SLIST_HEAD( , client_item )    free_items;
   RB_HEAD( active, client_item ) active_items;
+  FILE                           *event_stream;
 } client_context;
 
 static inline int item_cmp( const void *pa, const void *pb )
@@ -142,7 +143,7 @@ static int connect_client( const char *host, uint16_t port )
 
 static void print_item( FILE *f, const client_item *item )
 {
-  ctf_event *ctf_item;
+  ctf_event ctf_item;
   uint32_t ns;
 
   if ( item->ns != 0 ) {
@@ -165,21 +166,13 @@ static void print_item( FILE *f, const client_item *item )
     item->data
   );
 
-  FILE *fptr = fopen("event", "a");
+  ctf_item.cpu=item->cpu;
+  ctf_item.event=item->event;
+  ctf_item.data=item->data;
+  ctf_item.ns=ns;
 
-  if (fptr == NULL) 
-  { 
-       printf("Could not open file"); 
-       return 0; 
-  }
-
-  ctf_item->cpu=item->cpu;
-  ctf_item->event=item->event;
-  ctf_item->data=item->data;
-  ctf_item->ns=ns;
+  fwrite( &ctf_item, sizeof( ctf_item ), 1, f );
 
-  fprintf(fptr,ctf_item); 
-  fclose(fptr);
 }
 
 static void flush_items( client_context *cctx )
@@ -215,7 +208,9 @@ static void flush_items( client_context *cctx )
 
     RB_REMOVE( active, &cctx->active_items, x );
     SLIST_INSERT_HEAD( &cctx->free_items, x, free_node );
-    print_item( stdout, x );
+    
+    print_item( cctx->event_stream, x);
+
   }
 }
 
@@ -337,6 +332,9 @@ int main( int argc, char **argv )
   SLIST_INIT( &cctx.free_items );
   RB_INIT( &cctx.active_items );
 
+  FILE *event_stream=fopen("event","wb");
+  cctx.event_stream=event_stream;
+  
   items = calloc( n, sizeof( *items ) );
   assert( items != NULL );
 
@@ -358,7 +356,7 @@ int main( int argc, char **argv )
       break;
     }
   }
-
+  fclose(event_stream);
   rv = close( fd );
   assert( rv == 0 );
 
-- 
2.7.4



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