Add debug message macros controlled by environment variable

    Add a HMI_DEBUG macro to print debug messages.
    It is controlled by the USE_HMI_DEBUG environment variable.

BUG-AGL: SPEC-998
Change-Id: Ibb0a5c119a3a627538e7ec2728c64007f21af215
Signed-off-by: zheng_wenlong <wenlong_zheng@nexty-ele.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/src/hmi-debug.h b/src/hmi-debug.h
new file mode 100644
index 0000000..3240171
--- /dev/null
+++ b/src/hmi-debug.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __HMI_DEBUG_H__
+#define __HMI_DEBUG_H__
+
+#include <time.h>
+#include <stdio.h>
+#include <string.h>
+#include <afb/afb-binding.h>
+
+enum LOG_LEVEL{
+    LOG_LEVEL_NONE = 0,
+    LOG_LEVEL_ERROR,
+    LOG_LEVEL_WARNING,
+    LOG_LEVEL_NOTICE,
+    LOG_LEVEL_INFO,
+    LOG_LEVEL_DEBUG,
+    LOG_LEVEL_MAX = LOG_LEVEL_ERROR
+};
+
+#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
+
+#define HMI_ERROR(prefix, args,...) _HMI_LOG(LOG_LEVEL_ERROR, __FILENAME__, __FUNCTION__, __LINE__, prefix, args, ##__VA_ARGS__)
+#define HMI_WARNING(prefix, args,...) _HMI_LOG(LOG_LEVEL_WARNING, __FILENAME__, __FUNCTION__,__LINE__, prefix, args,##__VA_ARGS__)
+#define HMI_NOTICE(prefix, args,...) _HMI_LOG(LOG_LEVEL_NOTICE, __FILENAME__, __FUNCTION__,__LINE__, prefix, args,##__VA_ARGS__)
+#define HMI_INFO(prefix, args,...)  _HMI_LOG(LOG_LEVEL_INFO, __FILENAME__, __FUNCTION__,__LINE__, prefix, args,##__VA_ARGS__)
+#define HMI_DEBUG(prefix, args,...) _HMI_LOG(LOG_LEVEL_DEBUG, __FILENAME__, __FUNCTION__,__LINE__, prefix, args,##__VA_ARGS__)
+
+static char ERROR_FLAG[6][20] = {"NONE", "ERROR", "WARNING", "NOTICE", "INFO", "DEBUG"};
+
+static void _HMI_LOG(enum LOG_LEVEL level, const char* file, const char* func, const int line, const char* prefix, const char* log, ...)
+{
+    const int log_level = (getenv("USE_HMI_DEBUG") == NULL)?0:atoi(getenv("USE_HMI_DEBUG"));
+    if(log_level < level)
+    {
+        return;
+    }
+
+    char *message;
+    struct timespec tp;
+    unsigned int time;
+
+    clock_gettime(CLOCK_REALTIME, &tp);
+	time = (tp.tv_sec * 1000000L) + (tp.tv_nsec / 1000);
+
+	va_list args;
+	va_start(args, log);
+	if (log == NULL || vasprintf(&message, log, args) < 0)
+        message = NULL;
+    fprintf(stderr,  "[%10.3f] [%s %s] [%s, %s(), Line:%d] >>> %s \n", time / 1000.0, prefix, ERROR_FLAG[level], file, func, line, message);
+    va_end(args);
+	free(message);
+}
+
+#endif  //__HMI_DEBUG_H__
\ No newline at end of file