X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=include%2Fusterr-signal-safe.h;h=d987c1f0a11009788eaf0672450afb0736f61014;hb=0f029713c868ef3e868d0dc7297455cb737e606f;hp=474bc3c77116dab1c4419adb5b240a3fcfe6211c;hpb=9501d22f55b3a23f382f631c99b2325d1419b5da;p=lttng-ust.git diff --git a/include/usterr-signal-safe.h b/include/usterr-signal-safe.h index 474bc3c7..d987c1f0 100644 --- a/include/usterr-signal-safe.h +++ b/include/usterr-signal-safe.h @@ -37,10 +37,17 @@ enum ust_loglevel { extern volatile enum ust_loglevel ust_loglevel; void init_usterr(void); +#ifdef LTTNG_UST_DEBUG +static inline int ust_debug(void) +{ + return 1; +} +#else /* #ifdef LTTNG_UST_DEBUG */ static inline int ust_debug(void) { return ust_loglevel == UST_LOGLEVEL_DEBUG; } +#endif /* #else #ifdef LTTNG_UST_DEBUG */ #ifndef UST_COMPONENT //#error UST_COMPONENT is undefined @@ -69,72 +76,61 @@ static inline void __attribute__ ((format (printf, 1, 2))) /* Add end of string in case of buffer overflow. */ #define sigsafe_print_err(fmt, args...) \ do { \ - char ____buf[USTERR_MAX_LEN]; \ - int ____saved_errno; \ - ____saved_errno = errno; /* signal-safety */ \ - ust_safe_snprintf(____buf, sizeof(____buf), fmt, ## args); \ - ____buf[sizeof(____buf) - 1] = 0; \ - patient_write(STDERR_FILENO, ____buf, strlen(____buf)); \ - errno = ____saved_errno; /* signal-safety */ \ + if (ust_debug()) { \ + char ____buf[USTERR_MAX_LEN]; \ + int ____saved_errno; \ + \ + ____saved_errno = errno; /* signal-safety */ \ + ust_safe_snprintf(____buf, sizeof(____buf), fmt, ## args); \ + ____buf[sizeof(____buf) - 1] = 0; \ + patient_write(STDERR_FILENO, ____buf, strlen(____buf)); \ + errno = ____saved_errno; /* signal-safety */ \ + fflush(stderr); \ + } \ } while (0) #define UST_STR_COMPONENT UST_XSTR(UST_COMPONENT) #define ERRMSG(fmt, args...) \ do { \ - sigsafe_print_err(UST_STR_COMPONENT "[%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" UST_XSTR(__LINE__) ")\n", \ + sigsafe_print_err(UST_STR_COMPONENT "[%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" UST_XSTR(__LINE__) ")\n", \ (long) getpid(), \ - (long) gettid(), \ + (long) lttng_gettid(), \ ## args, __func__); \ - fflush(stderr); \ } while(0) -#ifdef LTTNG_UST_DEBUG -# define DBG(fmt, args...) ERRMSG(fmt, ## args) -# define DBG_raw(fmt, args...) \ - do { \ - sigsafe_print_err(fmt, ## args); \ - fflush(stderr); \ - } while(0) -#else -# define DBG(fmt, args...) \ - do { \ - if (ust_debug()) \ - ERRMSG(fmt, ## args); \ - } while (0) -# define DBG_raw(fmt, args...) \ - do { \ - if (ust_debug()) { \ - sigsafe_print_err(fmt, ## args); \ - fflush(stderr); \ - } \ - } while(0) -#endif -#define WARN(fmt, args...) ERRMSG("Warning: " fmt, ## args) -#define ERR(fmt, args...) ERRMSG("Error: " fmt, ## args) -#define BUG(fmt, args...) ERRMSG("BUG: " fmt, ## args) -#if !defined(__linux__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE)) +#define DBG(fmt, args...) ERRMSG(fmt, ## args) +#define DBG_raw(fmt, args...) sigsafe_print_err(fmt, ## args) +#define WARN(fmt, args...) ERRMSG("Warning: " fmt, ## args) +#define ERR(fmt, args...) ERRMSG("Error: " fmt, ## args) +#define BUG(fmt, args...) ERRMSG("BUG: " fmt, ## args) + +#if !defined(__GLIBC__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE)) /* * Version using XSI strerror_r. */ -#define PERROR(call, args...)\ - do { \ - char buf[200] = "Error in strerror_r()"; \ - strerror_r(errno, buf, sizeof(buf)); \ - ERRMSG("Error: " call ": %s", ## args, buf); \ - } while(0); +#define PERROR(call, args...) \ + do { \ + if (ust_debug()) { \ + char buf[200] = "Error in strerror_r()"; \ + strerror_r(errno, buf, sizeof(buf)); \ + ERRMSG("Error: " 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)); \ - ERRMSG("Error: " call ": %s", ## args, buf); \ - } while(0); +#define PERROR(call, args...) \ + do { \ + if (ust_debug()) { \ + char *buf; \ + char tmp[200]; \ + buf = strerror_r(errno, tmp, sizeof(tmp)); \ + ERRMSG("Error: " call ": %s", ## args, buf); \ + } \ + } while(0) #endif #define BUG_ON(condition) \