1 files changed, 104 insertions, 0 deletions
diff --git a/src/mercury/mercury_log.h b/src/mercury/mercury_log.h
new file mode 100644
index 0000000..9ee48f2
--- /dev/null
+++ b/src/mercury/mercury_log.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2013-2019 Argonne National Laboratory, Department of Energy,
+ *                    UChicago Argonne, LLC and The HDF Group.
+ * All rights reserved.
+ *
+ * The full copyright notice, including terms governing use, modification,
+ * and redistribution, is contained in the COPYING file that can be
+ * found at the root of the source code distribution tree.
+ */
+
+#ifndef MERCURY_LOG_H
+#define MERCURY_LOG_H
+
+#include "mercury_util_config.h"
+
+#include <stdio.h>
+
+#define HG_LOG_TYPE_NONE    0
+#define HG_LOG_TYPE_DEBUG   0x01
+#define HG_LOG_TYPE_WARNING 0x02
+#define HG_LOG_TYPE_ERROR   0x04
+
+/* For compatibility */
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ < 199901L)
+#    if defined(__GNUC__) && (__GNUC__ >= 2)
+#        define __func__ __FUNCTION__
+#    else
+#        define __func__ "<unknown>"
+#    endif
+#elif defined(_WIN32)
+#    define __func__ __FUNCTION__
+#endif
+
+#define HG_LOG_WRITE_ERROR(HG_LOG_MODULE_NAME, ...)                            \
+    do {                                                                       \
+        hg_log_write(HG_LOG_TYPE_ERROR, HG_LOG_MODULE_NAME, __FILE__,          \
+            __LINE__, __func__, __VA_ARGS__);                                  \
+    } while (0)
+#define HG_LOG_WRITE_DEBUG(HG_LOG_MODULE_NAME, ...)                            \
+    do {                                                                       \
+        hg_log_write(HG_LOG_TYPE_DEBUG, HG_LOG_MODULE_NAME, __FILE__,          \
+            __LINE__, __func__, __VA_ARGS__);                                  \
+    } while (0)
+#define HG_LOG_WRITE_WARNING(HG_LOG_MODULE_NAME, ...)                          \
+    do {                                                                       \
+        hg_log_write(HG_LOG_TYPE_WARNING, HG_LOG_MODULE_NAME, __FILE__,        \
+            __LINE__, __func__, __VA_ARGS__);                                  \
+    } while (0)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Set the logging function.
+ *
+ * \param log_func [IN]         pointer to function
+ */
+HG_UTIL_PUBLIC void
+hg_log_set_func(int (*log_func)(FILE *stream, const char *format, ...));
+
+/**
+ * Set the stream for debug output.
+ *
+ * \param stream [IN/OUT]       pointer to stream
+ */
+HG_UTIL_PUBLIC void
+hg_log_set_stream_debug(FILE *stream);
+
+/**
+ * Set the stream for warning output.
+ *
+ * \param stream [IN/OUT]       pointer to stream
+ */
+HG_UTIL_PUBLIC void
+hg_log_set_stream_warning(FILE *stream);
+
+/**
+ * Set the stream for error output.
+ *
+ * \param stream [IN/OUT]       pointer to stream
+ */
+HG_UTIL_PUBLIC void
+hg_log_set_stream_error(FILE *stream);
+
+/**
+ * Write log.
+ *
+ * \param log_type [IN]         log type (HG_LOG_TYPE_DEBUG, etc)
+ * \param module [IN]           module name
+ * \param file [IN]             file name
+ * \param line [IN]             line number
+ * \param func [IN]             function name
+ * \param format [IN]           string format
+ */
+HG_UTIL_PUBLIC void
+hg_log_write(unsigned int log_type, const char *module, const char *file,
+    unsigned int line, const char *func, const char *format, ...);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MERCURY_LOG_H */