#ifndef BABELTRACE_LOGGING_INTERNAL_H
#define BABELTRACE_LOGGING_INTERNAL_H
+#include <stdlib.h>
+#include <stdio.h>
#include <babeltrace/logging.h>
+#include <babeltrace/babeltrace-internal.h>
/* To detect incompatible changes you can define BT_LOG_VERSION_REQUIRED to be
* the current value of BT_LOG_VERSION before including this file (or via
#if defined(BT_LOG_OUTPUT_LEVEL)
#define _BT_LOG_OUTPUT_LEVEL BT_LOG_OUTPUT_LEVEL
#else
- #define _BT_LOG_OUTPUT_LEVEL _bt_log_global_output_lvl
+ /*
+ * We disallow this to make sure Babeltrace modules always
+ * have their own local log level.
+ */
+ #error No log level symbol specified: please define BT_LOG_OUTPUT_LEVEL before including this header.
#endif
/* "Tag" is a compound string that could be associated with a log message. It
* corresponding BT_LOG_DEFINE_XXX macro MUST be used exactly once somewhere.
* Otherwise build will fail with link error (undefined symbol).
*/
-#define BT_LOG_DEFINE_TAG_PREFIX const char *_bt_log_tag_prefix
-#define BT_LOG_DEFINE_GLOBAL_FORMAT bt_log_format _bt_log_global_format
-#define BT_LOG_DEFINE_GLOBAL_OUTPUT bt_log_output _bt_log_global_output
-#define BT_LOG_DEFINE_GLOBAL_OUTPUT_LEVEL int _bt_log_global_output_lvl
+#define BT_LOG_DEFINE_TAG_PREFIX BT_HIDDEN const char *_bt_log_tag_prefix
+#define BT_LOG_DEFINE_GLOBAL_FORMAT BT_HIDDEN bt_log_format _bt_log_global_format
+#define BT_LOG_DEFINE_GLOBAL_OUTPUT BT_HIDDEN bt_log_output _bt_log_global_output
+#define BT_LOG_DEFINE_GLOBAL_OUTPUT_LEVEL BT_HIDDEN int _bt_log_global_output_lvl
/* Pointer to global format options. Direct modification is not allowed. Use
* bt_log_set_mem_width() instead. Could be used to initialize bt_log_spec
#if defined(__printflike)
#define _BT_LOG_PRINTFLIKE(str_index, first_to_check) \
__printflike(str_index, first_to_check)
+#elif defined(__MINGW_PRINTF_FORMAT)
+ #define _BT_LOG_PRINTFLIKE(str_index, first_to_check) \
+ __attribute__((format(__MINGW_PRINTF_FORMAT, str_index, first_to_check)))
#elif defined(__GNUC__)
#define _BT_LOG_PRINTFLIKE(str_index, first_to_check) \
__attribute__((format(__printf__, str_index, first_to_check)))
* - BT_LOGE("format string", args, ...)
* - BT_LOGF("format string", args, ...)
*
+ * Message and error string (errno) logging macros:
+ * - BT_LOGV_ERRNO("initial message", "format string", args, ...)
+ * - BT_LOGD_ERRNO("initial message", "format string", args, ...)
+ * - BT_LOGI_ERRNO("initial message", "format string", args, ...)
+ * - BT_LOGW_ERRNO("initial message", "format string", args, ...)
+ * - BT_LOGE_ERRNO("initial message", "format string", args, ...)
+ * - BT_LOGF_ERRNO("initial message", "format string", args, ...)
+ *
* Memory logging macros:
* - BT_LOGV_MEM(data_ptr, data_sz, "format string", args, ...)
* - BT_LOGD_MEM(data_ptr, data_sz, "format string", args, ...)
} _BT_LOG_ONCE
#endif
+#define BT_LOG_WRITE_ERRNO(lvl, tag, _msg, _fmt, args...) \
+ do { \
+ const char *error_str; \
+ error_str = g_strerror(errno); \
+ BT_LOG_WRITE(lvl, tag, _msg ": %s" _fmt, error_str, ## args); \
+ } _BT_LOG_ONCE
+
static _BT_LOG_INLINE void _bt_log_unused(const int dummy, ...) {(void)dummy;}
#define _BT_LOG_UNUSED(...) \
#if BT_LOG_ENABLED_VERBOSE
#define BT_LOGV(...) \
BT_LOG_WRITE(BT_LOG_VERBOSE, _BT_LOG_TAG, __VA_ARGS__)
+ #define BT_LOGV_ERRNO(...) \
+ BT_LOG_WRITE_ERRNO(BT_LOG_VERBOSE, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGV_AUX(log, ...) \
BT_LOG_WRITE_AUX(log, BT_LOG_VERBOSE, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGV_MEM(d, d_sz, ...) \
#if BT_LOG_ENABLED_DEBUG
#define BT_LOGD(...) \
BT_LOG_WRITE(BT_LOG_DEBUG, _BT_LOG_TAG, __VA_ARGS__)
+ #define BT_LOGD_ERRNO(...) \
+ BT_LOG_WRITE_ERRNO(BT_LOG_DEBUG, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGD_AUX(log, ...) \
BT_LOG_WRITE_AUX(log, BT_LOG_DEBUG, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGD_MEM(d, d_sz, ...) \
#if BT_LOG_ENABLED_INFO
#define BT_LOGI(...) \
BT_LOG_WRITE(BT_LOG_INFO, _BT_LOG_TAG, __VA_ARGS__)
+ #define BT_LOGI_ERRNO(...) \
+ BT_LOG_WRITE_ERRNO(BT_LOG_INFO, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGI_AUX(log, ...) \
BT_LOG_WRITE_AUX(log, BT_LOG_INFO, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGI_MEM(d, d_sz, ...) \
#if BT_LOG_ENABLED_WARN
#define BT_LOGW(...) \
BT_LOG_WRITE(BT_LOG_WARN, _BT_LOG_TAG, __VA_ARGS__)
+ #define BT_LOGW_ERRNO(...) \
+ BT_LOG_WRITE_ERRNO(BT_LOG_WARN, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGW_AUX(log, ...) \
BT_LOG_WRITE_AUX(log, BT_LOG_WARN, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGW_MEM(d, d_sz, ...) \
#if BT_LOG_ENABLED_ERROR
#define BT_LOGE(...) \
BT_LOG_WRITE(BT_LOG_ERROR, _BT_LOG_TAG, __VA_ARGS__)
+ #define BT_LOGE_ERRNO(...) \
+ BT_LOG_WRITE_ERRNO(BT_LOG_ERROR, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGE_AUX(log, ...) \
BT_LOG_WRITE_AUX(log, BT_LOG_ERROR, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGE_MEM(d, d_sz, ...) \
#if BT_LOG_ENABLED_FATAL
#define BT_LOGF(...) \
BT_LOG_WRITE(BT_LOG_FATAL, _BT_LOG_TAG, __VA_ARGS__)
+ #define BT_LOGF_ERRNO(...) \
+ BT_LOG_WRITE_ERRNO(BT_LOG_FATAL, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGF_AUX(log, ...) \
BT_LOG_WRITE_AUX(log, BT_LOG_FATAL, _BT_LOG_TAG, __VA_ARGS__)
#define BT_LOGF_MEM(d, d_sz, ...) \
* bt_log_set_output_v(BT_LOG_OUT_STDERR);
*/
enum { BT_LOG_OUT_STDERR_MASK = BT_LOG_PUT_STD };
+
+BT_HIDDEN
void bt_log_out_stderr_callback(const bt_log_message *const msg, void *arg);
#define BT_LOG_OUT_STDERR BT_LOG_OUT_STDERR_MASK, 0, bt_log_out_stderr_callback
*/
#define BT_LOG_STDERR (&_bt_log_stderr_spec)
+static inline
+int bt_log_get_level_from_env(const char *var)
+{
+ const char *varval = getenv(var);
+ int level = BT_LOG_NONE;
+
+ if (!varval) {
+ goto end;
+ }
+
+ if (strcmp(varval, "VERBOSE") == 0 ||
+ strcmp(varval, "V") == 0) {
+ level = BT_LOG_VERBOSE;
+ } else if (strcmp(varval, "DEBUG") == 0 ||
+ strcmp(varval, "D") == 0) {
+ level = BT_LOG_DEBUG;
+ } else if (strcmp(varval, "INFO") == 0 ||
+ strcmp(varval, "I") == 0) {
+ level = BT_LOG_INFO;
+ } else if (strcmp(varval, "WARN") == 0 ||
+ strcmp(varval, "WARNING") == 0 ||
+ strcmp(varval, "W") == 0) {
+ level = BT_LOG_WARN;
+ } else if (strcmp(varval, "ERROR") == 0 ||
+ strcmp(varval, "E") == 0) {
+ level = BT_LOG_ERROR;
+ } else if (strcmp(varval, "FATAL") == 0 ||
+ strcmp(varval, "F") == 0) {
+ level = BT_LOG_FATAL;
+ } else if (strcmp(varval, "NONE") == 0 ||
+ strcmp(varval, "N") == 0) {
+ level = BT_LOG_NONE;
+ } else {
+ /* Should we warn here? How? */
+ }
+
+end:
+ return level;
+}
+
+#define BT_LOG_LEVEL_EXTERN_SYMBOL(_level_sym) \
+ extern int _level_sym
+
+#define BT_LOG_INIT_LOG_LEVEL(_level_sym, _env_var) \
+ BT_HIDDEN int _level_sym = BT_LOG_NONE; \
+ static \
+ void __attribute__((constructor)) _bt_log_level_ctor(void) \
+ { \
+ _level_sym = bt_log_get_level_from_env(_env_var); \
+ }
+
#ifdef __cplusplus
}
#endif
-#endif
+#endif /* BABELTRACE_LOGGING_INTERNAL_H */
projects / babeltrace.git / blobdiff