#include <stdio.h>
#include <stdint.h>
#include <string.h>
+#include <urcu/tls-compat.h>
+#include <time.h>
#ifndef _GNU_SOURCE
#error "lttng-tools error.h needs _GNU_SOURCE"
#include <lttng/lttng-error.h>
#include <common/compat/tid.h>
+/* Avoid conflict with Solaris <sys/regset.h> */
+#if defined(ERR) && defined(__sun__)
+#undef ERR
+#endif
+
/* Stringify the expansion of a define */
#define XSTR(d) STR(d)
#define STR(s) #s
+/*
+ * Contains the string of the log entry time. This is used as a thread local
+ * storage so we don't race between thread and also avoid memory allocation
+ * every time a log is fired.
+ */
+struct log_time {
+ /* Format: 00:00:00.000000 plus NULL byte. */
+ char str[16];
+};
+extern DECLARE_URCU_TLS(struct log_time, error_log_time);
+
extern int lttng_opt_quiet;
extern int lttng_opt_verbose;
+extern int lttng_opt_mi;
/* Error type. */
-#define PRINT_ERR 0x1
-#define PRINT_WARN 0x2
-#define PRINT_BUG 0x3
-#define PRINT_MSG 0x4
-#define PRINT_DBG 0x10
-#define PRINT_DBG2 0x20
-#define PRINT_DBG3 0x30
+#define PRINT_ERR (1 << 0)
+#define PRINT_WARN (1 << 1)
+#define PRINT_BUG (1 << 2)
+#define PRINT_MSG (1 << 3)
+#define PRINT_DBG (1 << 4)
+#define PRINT_DBG2 (1 << 5)
+#define PRINT_DBG3 (1 << 6)
/*
* Macro for printing message depending on command line option and verbosity.
+ *
+ * Machine interface:
+ * We use lttng_opt_mi to suppress all normal msg to stdout. We don't
+ * want any nested msg to show up when printing mi to stdout(if it's the case).
+ * All warnings and errors should be printed to stderr as normal.
*/
-#define __lttng_print(type, fmt, args...) \
- do { \
- if (lttng_opt_quiet == 0 && type == PRINT_MSG) { \
- fprintf(stdout, fmt, ## args); \
- } else if (lttng_opt_quiet == 0 && \
- (((type & PRINT_DBG) && lttng_opt_verbose == 1) || \
- ((type & (PRINT_DBG | PRINT_DBG2)) && \
- lttng_opt_verbose == 2) || \
- ((type & (PRINT_DBG | PRINT_DBG2 | PRINT_DBG3)) && \
- lttng_opt_verbose == 3))) { \
- fprintf(stderr, fmt, ## args); \
- } else if (lttng_opt_quiet == 0 && (type & (PRINT_WARN))) { \
- fprintf(stderr, fmt, ## args); \
- } else if (type & (PRINT_ERR | PRINT_BUG)) { \
- fprintf(stderr, fmt, ## args); \
- } \
+#define __lttng_print(type, fmt, args...) \
+ do { \
+ if (!lttng_opt_quiet && !lttng_opt_mi && \
+ (type) == PRINT_MSG) { \
+ fprintf(stdout, fmt, ## args); \
+ } else if (!lttng_opt_quiet && !lttng_opt_mi && \
+ ((((type) & PRINT_DBG) && lttng_opt_verbose == 1) || \
+ (((type) & (PRINT_DBG | PRINT_DBG2)) && \
+ lttng_opt_verbose == 2) || \
+ (((type) & (PRINT_DBG | PRINT_DBG2 | PRINT_DBG3)) && \
+ lttng_opt_verbose == 3))) { \
+ fprintf(stderr, fmt, ## args); \
+ } else if (!lttng_opt_quiet && \
+ ((type) & (PRINT_WARN | PRINT_ERR | PRINT_BUG))) { \
+ fprintf(stderr, fmt, ## args); \
+ } \
} while (0);
/* Three level of debug. Use -v, -vv or -vvv for the levels */
#define _ERRMSG(msg, type, fmt, args...) __lttng_print(type, msg \
- " [%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" XSTR(__LINE__) ")\n", \
- (long) getpid(), (long) gettid(), ## args, __func__)
+ " - %s [%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" XSTR(__LINE__) ")\n", \
+ log_add_time(), (long) getpid(), (long) gettid(), ## args, __func__)
#define MSG(fmt, args...) \
__lttng_print(PRINT_MSG, fmt "\n", ## args)
#define ERR(fmt, args...) \
__lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
#define WARN(fmt, args...) \
- __lttng_print(PRINT_WARN, "Warning: " fmt "\n", ## args)
+ __lttng_print(PRINT_ERR, "Warning: " fmt "\n", ## args)
#define BUG(fmt, args...) _ERRMSG("BUG", PRINT_BUG, fmt, ## args)
#define DBG(fmt, args...) _ERRMSG("DEBUG1", PRINT_DBG, fmt, ## args)
#define DBG2(fmt, args...) _ERRMSG("DEBUG2", PRINT_DBG2, fmt, ## args)
#define DBG3(fmt, args...) _ERRMSG("DEBUG3", PRINT_DBG3, fmt, ## args)
+#define LOG(type, fmt, args...) \
+ do { \
+ switch (type) { \
+ case PRINT_ERR: \
+ ERR(fmt, ## args); \
+ break; \
+ case PRINT_WARN: \
+ WARN(fmt, ## args); \
+ break; \
+ case PRINT_BUG: \
+ BUG(fmt, ## args); \
+ break; \
+ case PRINT_MSG: \
+ MSG(fmt, ## args); \
+ break; \
+ case PRINT_DBG: \
+ DBG(fmt, ## args); \
+ break; \
+ case PRINT_DBG2: \
+ DBG2(fmt, ## args); \
+ break; \
+ case PRINT_DBG3: \
+ DBG3(fmt, ## args); \
+ break; \
+ default: \
+ assert(0); \
+ } \
+ } while(0);
#define _PERROR(fmt, args...) _ERRMSG("PERROR", PRINT_ERR, fmt, ## args)
const char *error_get_str(int32_t code);
+/*
+ * Function that format the time and return the reference of log_time.str to
+ * the caller. On error, an empty string is returned thus no time will be
+ * printed in the log.
+ */
+const char *log_add_time();
+
#endif /* _ERROR_H */