From 2f6370c0dd4ffdc1212a3aaa64f5646d477dd6c8 Mon Sep 17 00:00:00 2001
From: Alberto Escolar Piedras <alpi@oticon.com>
Date: Fri, 14 Sep 2018 09:16:52 +0200
Subject: [PATCH] subsys: logging: for native_posix use appropriate tracing

For the native_posix backend, use the appropiate tracing
functions and enable color if it should be

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
---
 subsys/logging/log_backend_native_posix.c | 40 ++++++++++++++++++++---
 1 file changed, 35 insertions(+), 5 deletions(-)

diff --git a/subsys/logging/log_backend_native_posix.c b/subsys/logging/log_backend_native_posix.c
index 24487d2b0f4..258bae9ebdd 100644
--- a/subsys/logging/log_backend_native_posix.c
+++ b/subsys/logging/log_backend_native_posix.c
@@ -6,20 +6,50 @@
  */
 
 #include <stdio.h>
-
+#include <stddef.h>
+#include <logging/log_backend.h>
 #include <logging/log_backend_native_posix.h>
 #include <logging/log_core.h>
 #include <logging/log_msg.h>
 #include <logging/log_output.h>
-#include <device.h>
-#include <uart.h>
+#include "posix_trace.h"
 
-static u8_t buf[2048];
+#define _STDOUT_BUF_SIZE 256
+static char stdout_buff[_STDOUT_BUF_SIZE];
+static int n_pend; /* Number of pending characters in buffer */
+
+static void preprint_char(int c)
+{
+	int printnow = 0;
+
+	if (c == '\r') {
+		/* Discard carriage returns */
+		return;
+	}
+	if (c != '\n') {
+		stdout_buff[n_pend++] = c;
+		stdout_buff[n_pend] = 0;
+	} else {
+		printnow = 1;
+	}
+
+	if (n_pend >= _STDOUT_BUF_SIZE - 1) {
+		printnow = 1;
+	}
+
+	if (printnow) {
+		posix_print_trace("%s\n", stdout_buff);
+		n_pend = 0;
+		stdout_buff[0] = 0;
+	}
+}
+
+static u8_t buf[_STDOUT_BUF_SIZE];
 
 int char_out(u8_t *data, size_t length, void *ctx)
 {
 	for (size_t i = 0; i < length; i++) {
-		putchar(data[i]);
+		preprint_char(data[i]);
 	}
 
 	return length;