Move internal headers to 'src/' dir

[lttng-ust.git] / include / usterr-signal-safe.h

diff --git a/include/usterr-signal-safe.h b/include/usterr-signal-safe.h
deleted file mode 100644 (file)
index 6123c0b..0000000
--- a/include/usterr-signal-safe.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- * Copyright (C) 2009 Pierre-Marc Fournier
- * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#ifndef _USTERR_SIGNAL_SAFE_H
-#define _USTERR_SIGNAL_SAFE_H
-
-#include <string.h>
-#include <sys/types.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <ust-share.h>
-#include "ust-tid.h"
-#include "ust-snprintf.h"
-
-enum ust_err_loglevel {
-       UST_ERR_LOGLEVEL_UNKNOWN = 0,
-       UST_ERR_LOGLEVEL_NORMAL,
-       UST_ERR_LOGLEVEL_DEBUG,
-};
-
-extern volatile enum ust_err_loglevel ust_err_loglevel
-       __attribute__((visibility("hidden")));
-
-void ust_err_init(void)
-       __attribute__((visibility("hidden")));
-
-#ifdef LTTNG_UST_DEBUG
-static inline bool ust_err_debug_enabled(void)
-{
-       return true;
-}
-#else /* #ifdef LTTNG_UST_DEBUG */
-static inline bool ust_err_debug_enabled(void)
-{
-       return ust_err_loglevel == UST_ERR_LOGLEVEL_DEBUG;
-}
-#endif /* #else #ifdef LTTNG_UST_DEBUG */
-
-/*
- * The default component for error messages.
- */
-#ifndef UST_COMPONENT
-#define UST_COMPONENT libust
-#endif
-
-/* To stringify the expansion of a define */
-#define UST_XSTR(d) UST_STR(d)
-#define UST_STR(s) #s
-
-#define UST_ERR_MAX_LEN        512
-
-/*
- * We sometimes print in the tracing path, and tracing can occur in
- * signal handlers, so we must use a print method which is signal safe.
- */
-/* Can't use dynamic allocation. Limit ourselves to UST_ERR_MAX_LEN chars. */
-/* Add end of string in case of buffer overflow. */
-#define sigsafe_print_err(fmt, args...)                                        \
-do {                                                                   \
-       if (ust_err_debug_enabled()) {                                  \
-               char ____buf[UST_ERR_MAX_LEN];                          \
-               int ____saved_errno;                                    \
-                                                                       \
-               ____saved_errno = errno;        /* signal-safety */     \
-               ust_safe_snprintf(____buf, sizeof(____buf), fmt, ## args); \
-               ____buf[sizeof(____buf) - 1] = 0;                       \
-               ust_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", \
-               (long) getpid(),                \
-               (long) lttng_gettid(),          \
-               ## args, __func__);             \
-       } while(0)
-
-
-#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 {                                                            \
-               if (ust_err_debug_enabled()) {                          \
-                       char perror_buf[200] = "Error in strerror_r()"; \
-                       strerror_r(errno, perror_buf,                   \
-                                       sizeof(perror_buf));            \
-                       ERRMSG("Error: " call ": %s", ## args,          \
-                                       perror_buf);                    \
-               }                                                       \
-       } while(0)
-#else
-/*
- * Version using GNU strerror_r, for linux with appropriate defines.
- */
-#define PERROR(call, args...)                                          \
-       do {                                                            \
-               if (ust_err_debug_enabled()) {                          \
-                       char *perror_buf;                               \
-                       char perror_tmp[200];                           \
-                       perror_buf = strerror_r(errno, perror_tmp,      \
-                                       sizeof(perror_tmp));            \
-                       ERRMSG("Error: " call ": %s", ## args,          \
-                                       perror_buf);                    \
-               }                                                       \
-       } while(0)
-#endif
-
-#define BUG_ON(condition)                                      \
-       do {                                                    \
-               if (caa_unlikely(condition))                    \
-                       ERR("condition not respected (BUG) on line %s:%d", __FILE__, __LINE__); \
-       } while(0)
-#define WARN_ON(condition)                                     \
-       do {                                                    \
-               if (caa_unlikely(condition))                    \
-                       WARN("condition not respected on line %s:%d", __FILE__, __LINE__); \
-       } while(0)
-#define WARN_ON_ONCE(condition) WARN_ON(condition)
-
-#endif /* _USTERR_SIGNAL_SAFE_H */