#include <errno.h>
#include <stdio.h>
+#include <string.h>
+
+#ifndef _GNU_SOURCE
+#error "lttng-tools error.h needs _GNU_SOURCE"
+#endif
/* 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
/*
* 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...) \
" [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 { \
+ 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 { \
+ do { \
char *buf; \
char tmp[200]; \
buf = strerror_r(errno, tmp, sizeof(tmp)); \
_PERROR(call ": %s", ## args, buf); \
} while(0);
+#endif
#endif /* _ERROR_H */