[FIX] stack overflow when executing handlers code

Use dynamic instead of stack memory for buffer alocation when packing events

Change-Id: I29aa979e65c0b587a31511e9d5622a3c1801bdb1
Signed-off-by: Vasiliy Ulyanov <v.ulyanov@samsung.com>

diff --git a/include/binproto.h b/include/binproto.h
index fae84e7..87c12b9 100644 (file)
--- a/include/binproto.h
+++ b/include/binproto.h
@@ -490,8 +490,10 @@ static char __attribute__((used)) *pack_ret(char *to, char ret_type, ...)
                BUF_PTR = pack_int32(BUF_PTR, api_type);             \
        } while (0)
 
+/* TODO maloc/free for each event turns out expensive: think of buffer
+ * allocator implementation */
 #define PREPARE_LOCAL_BUF()                    \
-               char LOCAL_BUF[MAX_LOCAL_BUF_SIZE];             \
+               char *LOCAL_BUF = (char *)malloc(MAX_LOCAL_BUF_SIZE);   \
                char *BUF_PTR = LOCAL_BUF;                      \
                char *RET_PTR = NULL
 
@@ -499,7 +501,9 @@ static char __attribute__((used)) *pack_ret(char *to, char ret_type, ...)
 #define MSG_HDR_LEN 20
 #define FLUSH_LOCAL_BUF()                                              \
                *(uint32_t *)(msg_buf + MSG_LEN_OFFSET) = (p - msg_buf) - MSG_HDR_LEN; \
-               send(gTraceInfo.socket.daemonSock, msg_buf, (p - msg_buf), 0)
+               send(gTraceInfo.socket.daemonSock, msg_buf, (p - msg_buf), 0); \
+               free(LOCAL_BUF);                                        \
+               LOCAL_BUF = NULL
 
 // =========================== post block macro ===========================