centralize sessiond config option handling

[lttng-tools.git] / src / common / error.h

diff --git a/src/common/error.h b/src/common/error.h
index e0cb1583e4cbf4270605238cfdd35ae0284e271b..6fe8d8c2d3bc312d3670b2c55cef76bf42791e94 100644 (file)
--- a/src/common/error.h
+++ b/src/common/error.h
@@ -22,8 +22,9 @@
 #include <stdio.h>
 #include <stdint.h>
 #include <string.h>
+#include <stdbool.h>
 #include <urcu/tls-compat.h>
-#include <time.h>
+#include <common/compat/time.h>
 
 #ifndef _GNU_SOURCE
 #error "lttng-tools error.h needs _GNU_SOURCE"
@@ -57,13 +58,79 @@ 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
+enum lttng_error_level {
+       PRINT_ERR =     0,
+       PRINT_BUG =     1,
+       PRINT_WARN =    2,
+       PRINT_MSG =     3,
+       PRINT_DBG =     4,
+       PRINT_DBG2 =    5,
+       PRINT_DBG3 =    6,
+};
+
+static inline bool __lttng_print_check_opt(enum lttng_error_level type)
+{
+       /* lttng_opt_mi and lttng_opt_quiet. */
+       switch (type) {
+       case PRINT_DBG3:
+       case PRINT_DBG2:
+       case PRINT_DBG:
+       case PRINT_MSG:
+               if (lttng_opt_mi) {
+                       return false;
+               }
+               /* Fall-through. */
+       case PRINT_WARN:
+       case PRINT_BUG:
+       case PRINT_ERR:
+               if (lttng_opt_quiet) {
+                       return false;
+               }
+       }
+
+       /* lttng_opt_verbose */
+       switch (type) {
+       case PRINT_DBG3:
+               if (lttng_opt_verbose < 3) {
+                       return false;
+               }
+               break;
+       case PRINT_DBG2:
+               if (lttng_opt_verbose < 2) {
+                       return false;
+               }
+               break;
+       case PRINT_DBG:
+               if (lttng_opt_verbose < 1) {
+                       return false;
+               }
+               break;
+       case PRINT_MSG:
+       case PRINT_WARN:
+       case PRINT_BUG:
+       case PRINT_ERR:
+               break;
+       }
+
+       return true;
+}
+
+void lttng_abort_on_error(void);
+
+static inline void __lttng_print_check_abort(enum lttng_error_level type)
+{
+       switch (type) {
+       case PRINT_DBG3:
+       case PRINT_DBG2:
+       case PRINT_DBG:
+       case PRINT_MSG:
+       case PRINT_WARN:
+               break;
+       case PRINT_BUG:
+       case PRINT_ERR:
+               lttng_abort_on_error();
+       }
+}
 
 /*
  * Macro for printing message depending on command line option and verbosity.
@@ -73,30 +140,23 @@ extern int lttng_opt_mi;
  * 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 && lttng_opt_mi == 0 &&            \
-                               type == PRINT_MSG) {                                \
-                       fprintf(stdout, fmt, ## args);                          \
-               } else if (lttng_opt_quiet == 0 && lttng_opt_mi == 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);                          \
-               }                                                           \
-       } while (0);
+#define __lttng_print(type, fmt, args...)                                              \
+       do {                                                                            \
+               if (__lttng_print_check_opt(type)) {                                    \
+                       fprintf((type) == PRINT_MSG ? stdout : stderr, fmt, ## args);   \
+               }                                                                       \
+               __lttng_print_check_abort(type);                                        \
+       } while (0)
 
 /* Three level of debug. Use -v, -vv or -vvv for the levels */
 #define _ERRMSG(msg, type, fmt, args...) __lttng_print(type, msg \
                " - %s [%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" XSTR(__LINE__) ")\n", \
                        log_add_time(), (long) getpid(), (long) gettid(), ## args, __func__)
 
+#define _ERRMSG_NO_LOC(msg, type, fmt, args...) __lttng_print(type, msg        \
+               " - %s [%ld/%ld]: " fmt "\n", \
+                       log_add_time(), (long) getpid(), (long) gettid(), ## args)
+
 #define MSG(fmt, args...) \
        __lttng_print(PRINT_MSG, fmt "\n", ## args)
 #define _MSG(fmt, args...) \
@@ -104,11 +164,12 @@ extern int lttng_opt_mi;
 #define ERR(fmt, args...) \
        __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
 #define WARN(fmt, args...) \
-       __lttng_print(PRINT_ERR, "Warning: " fmt "\n", ## args)
+       __lttng_print(PRINT_WARN, "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 DBG_NO_LOC(fmt, args...) _ERRMSG_NO_LOC("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...)                        \
@@ -142,7 +203,7 @@ extern int lttng_opt_mi;
 
 #define _PERROR(fmt, args...) _ERRMSG("PERROR", PRINT_ERR, fmt, ## args)
 
-#if !defined(__linux__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
+#if !defined(__GLIBC__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
 
 /*
  * Version using XSI strerror_r.