Fix: add missing unistd.h for fdatasync in compat-fcntl.c

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

diff --git a/src/common/error.h b/src/common/error.h
index 81c20223d124282b59bb8ea23801cd714156f441..03af109a14fbc3772af12fe2661ab31a2e3d3f9a 100644 (file)
--- a/src/common/error.h
+++ b/src/common/error.h
@@ -1,18 +1,18 @@
 /*
  * Copyright (C)  2011 - David Goulet <david.goulet@polymtl.ca>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; only version 2 of the License.
- * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2 only,
+ * as published by the Free Software Foundation.
+ *
  * This program is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  * more details.
- * 
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef _ERROR_H
@@ -20,14 +20,21 @@
 
 #include <errno.h>
 #include <stdio.h>
+#include <stdint.h>
 #include <string.h>
 
+#ifndef _GNU_SOURCE
+#error "lttng-tools error.h needs _GNU_SOURCE"
+#endif
+
+#include <lttng/lttng-error.h>
+
 /* Stringify the expansion of a define */
 #define XSTR(d) STR(d)
 #define STR(s) #s
 
-extern int opt_quiet;
-extern int opt_verbose;
+extern int lttng_opt_quiet;
+extern int lttng_opt_verbose;
 
 #define PRINT_ERR   0x1
 #define PRINT_WARN  0x2
@@ -40,25 +47,28 @@ extern int opt_verbose;
 /*
  * Macro for printing message depending on command line option and verbosity.
  */
-#define __lttng_print(type, fmt, args...)                                 \
-       do {                                                                  \
-               if (opt_quiet == 0) {                                             \
-                       if (type == PRINT_MSG) {                                      \
-                               fprintf(stdout, fmt, ## args);                            \
-                       } else if (((type & PRINT_DBG) && opt_verbose == 1) ||        \
-                                       ((type & (PRINT_DBG | PRINT_DBG2)) &&                 \
-                                               opt_verbose == 2) ||                              \
-                                       ((type & (PRINT_DBG | PRINT_DBG2 | PRINT_DBG3)) &&    \
-                                               opt_verbose == 3)) {                              \
-                               fprintf(stderr, fmt, ## args);                            \
-                       } else if (type & (PRINT_ERR | PRINT_WARN | PRINT_BUG)) {     \
-                               fprintf(stderr, fmt, ## args);                            \
-                       }                                                             \
-               }                                                                 \
+#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);                          \
+               }                                                           \
        } while (0);
 
 #define MSG(fmt, args...) \
        __lttng_print(PRINT_MSG, fmt "\n", ## args)
+#define _MSG(fmt, args...) \
+       __lttng_print(PRINT_MSG, fmt, ## args)
 #define ERR(fmt, args...) \
        __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
 #define WARN(fmt, args...) \
@@ -75,14 +85,33 @@ extern int opt_verbose;
                " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__)
 
 #define _PERROR(fmt, args...) \
-       __lttng_print(PRINT_ERR, "perror " fmt "\n", ## args)
+       __lttng_print(PRINT_ERR, "PERROR: " fmt \
+               " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__)
+
+#if !defined(__linux__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
 
+/*
+ * Version using XSI strerror_r.
+ */
 #define PERROR(call, args...) \
-    do { \
+       do { \
+               char buf[200]; \
+               strerror_r(errno, buf, sizeof(buf)); \
+               _PERROR(call ": %s", ## args, buf); \
+       } while(0);
+#else
+/*
+ * Version using GNU strerror_r, for linux with appropriate defines.
+ */
+#define PERROR(call, args...) \
+       do { \
                char *buf; \
                char tmp[200]; \
                buf = strerror_r(errno, tmp, sizeof(tmp)); \
                _PERROR(call ": %s", ## args, buf); \
        } while(0);
+#endif
+
+const char *error_get_str(int32_t code);
 
 #endif /* _ERROR_H */