1 #ifndef BABELTRACE_COMMON_INTERNAL_H
2 #define BABELTRACE_COMMON_INTERNAL_H
5 * Copyright (c) 2018 EfficiOS Inc. and Linux Foundation
6 * Copyright (c) 2018 Philippe Proulx <pproulx@efficios.com>
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
38 #include <babeltrace2/babeltrace.h>
40 #define __BT_IN_BABELTRACE_H
41 #include <babeltrace2/func-status.h>
43 #include "common/assert.h"
44 #include "common/macros.h"
45 #include "common/safe.h"
47 #define BT_COMMON_COLOR_RESET "\033[0m"
48 #define BT_COMMON_COLOR_BOLD "\033[1m"
49 #define BT_COMMON_COLOR_FG_DEFAULT "\033[39m"
50 #define BT_COMMON_COLOR_FG_RED "\033[31m"
51 #define BT_COMMON_COLOR_FG_GREEN "\033[32m"
52 #define BT_COMMON_COLOR_FG_YELLOW "\033[33m"
53 #define BT_COMMON_COLOR_FG_BLUE "\033[34m"
54 #define BT_COMMON_COLOR_FG_MAGENTA "\033[35m"
55 #define BT_COMMON_COLOR_FG_CYAN "\033[36m"
56 #define BT_COMMON_COLOR_FG_LIGHT_GRAY "\033[37m"
57 #define BT_COMMON_COLOR_FG_BOLD_RED "\033[1m\033[31m"
58 #define BT_COMMON_COLOR_FG_BOLD_GREEN "\033[1m\033[32m"
59 #define BT_COMMON_COLOR_FG_BOLD_YELLOW "\033[1m\033[33m"
60 #define BT_COMMON_COLOR_FG_BOLD_BLUE "\033[1m\033[34m"
61 #define BT_COMMON_COLOR_FG_BOLD_MAGENTA "\033[1m\033[35m"
62 #define BT_COMMON_COLOR_FG_BOLD_CYAN "\033[1m\033[36m"
63 #define BT_COMMON_COLOR_FG_BOLD_LIGHT_GRAY "\033[1m\033[37m"
64 #define BT_COMMON_COLOR_FG_BRIGHT_RED "\033[91m"
65 #define BT_COMMON_COLOR_FG_BRIGHT_GREEN "\033[92m"
66 #define BT_COMMON_COLOR_FG_BRIGHT_YELLOW "\033[93m"
67 #define BT_COMMON_COLOR_FG_BRIGHT_BLUE "\033[94m"
68 #define BT_COMMON_COLOR_FG_BRIGHT_MAGENTA "\033[95m"
69 #define BT_COMMON_COLOR_FG_BRIGHT_CYAN "\033[96m"
70 #define BT_COMMON_COLOR_FG_BRIGHT_LIGHT_GRAY "\033[97m"
71 #define BT_COMMON_COLOR_BG_DEFAULT "\033[49m"
72 #define BT_COMMON_COLOR_BG_RED "\033[41m"
73 #define BT_COMMON_COLOR_BG_GREEN "\033[42m"
74 #define BT_COMMON_COLOR_BG_YELLOW "\033[43m"
75 #define BT_COMMON_COLOR_BG_BLUE "\033[44m"
76 #define BT_COMMON_COLOR_BG_MAGENTA "\033[45m"
77 #define BT_COMMON_COLOR_BG_CYAN "\033[46m"
78 #define BT_COMMON_COLOR_BG_LIGHT_GRAY "\033[47m"
80 struct bt_common_lttng_live_url_parts
{
83 GString
*target_hostname
;
84 GString
*session_name
;
86 /* -1 means default port */
91 * Checks if the current process has setuid or setgid access rights.
92 * Returns `true` if so.
95 bool bt_common_is_setuid_setgid(void);
98 * Returns the system-wide plugin path, e.g.
99 * `/usr/lib/babeltrace2/plugins`. Do not free the return value.
102 const char *bt_common_get_system_plugin_path(void);
105 * Returns the user plugin path, e.g.
106 * `/home/user/.local/lib/babeltrace2/plugins`. You need to free the
110 char *bt_common_get_home_plugin_path(int log_level
);
113 * Appends the list of directories in `paths` to the array `dirs`.
114 * `paths` is a list of directories separated by `:`. Returns 0 on
118 int bt_common_append_plugin_path_dirs(const char *paths
, GPtrArray
*dirs
);
121 * Returns `true` if terminal color codes are supported for this
125 bool bt_common_colors_supported(void);
128 const char *bt_common_color_reset(void);
131 const char *bt_common_color_bold(void);
134 const char *bt_common_color_fg_default(void);
137 const char *bt_common_color_fg_red(void);
140 const char *bt_common_color_fg_green(void);
143 const char *bt_common_color_fg_yellow(void);
146 const char *bt_common_color_fg_blue(void);
149 const char *bt_common_color_fg_magenta(void);
152 const char *bt_common_color_fg_cyan(void);
155 const char *bt_common_color_fg_light_gray(void);
158 const char *bt_common_color_fg_bright_red(void);
161 const char *bt_common_color_fg_bright_green(void);
164 const char *bt_common_color_fg_bright_yellow(void);
167 const char *bt_common_color_fg_bright_blue(void);
170 const char *bt_common_color_fg_bright_magenta(void);
173 const char *bt_common_color_fg_bright_cyan(void);
176 const char *bt_common_color_fg_bright_light_gray(void);
179 const char *bt_common_color_bg_default(void);
182 const char *bt_common_color_bg_red(void);
185 const char *bt_common_color_bg_green(void);
188 const char *bt_common_color_bg_yellow(void);
191 const char *bt_common_color_bg_blue(void);
194 const char *bt_common_color_bg_magenta(void);
197 const char *bt_common_color_bg_cyan(void);
200 const char *bt_common_color_bg_light_gray(void);
203 * Returns the substring from `input` to the first character found
204 * in the list of characters `end_chars`, unescaping any character
205 * found in `escapable_chars`, and sets `*end_pos` to the position of
206 * the end (from `input`). The caller owns the returned GString.
209 GString
*bt_common_string_until(const char *input
, const char *escapable_chars
,
210 const char *end_chars
, size_t *end_pos
);
213 * Returns the quoted version of `input` for a shell. If
214 * `with_single_quotes` is `true`, prepends and appends the `'` prefix
215 * and suffix to the returned string; otherwise the caller should
216 * prepend and append them manually, although they are not always
217 * required. The caller owns the returned GString.
220 GString
*bt_common_shell_quote(const char *input
, bool with_single_quotes
);
223 * Returns `true` if `input` is a string made only of printable
227 bool bt_common_string_is_printable(const char *input
);
230 * Destroys the parts of an LTTng live URL as returned by
231 * bt_common_parse_lttng_live_url().
234 void bt_common_destroy_lttng_live_url_parts(
235 struct bt_common_lttng_live_url_parts
*parts
);
238 * Parses the LTTng live URL `url` and returns its different parts.
239 * If there's an error, writes the error message into `*error_buf`
240 * up to `error_buf_size` bytes. You must destroy the returned value
241 * with bt_common_destroy_lttng_live_url_parts().
244 struct bt_common_lttng_live_url_parts
bt_common_parse_lttng_live_url(
245 const char *url
, char *error_buf
, size_t error_buf_size
);
248 * Normalizes (in place) a star globbing pattern to be used with
249 * bt_common_star_glob_match(). This function always succeeds.
252 void bt_common_normalize_star_glob_pattern(char *pattern
);
255 * Returns `true` if `candidate` (of size `candidate_len`) matches
256 * the star globbing pattern `pattern` (of size `pattern_len`).
259 bool bt_common_star_glob_match(const char *pattern
, size_t pattern_len
,
260 const char *candidate
, size_t candidate_len
);
263 * Normalizes the path `path`:
265 * * If it's a relative path, converts it to an absolute path using
266 * `wd` as the working directory (or the current working directory
268 * * Removes consecutive and trailing slashes.
269 * * Resolves `..` and `.` in the path (both in `path` and in `wd`).
270 * * Does NOT resolve symbolic links.
272 * The caller owns the returned GString.
275 GString
*bt_common_normalize_path(const char *path
, const char *wd
);
277 typedef void (* bt_common_handle_custom_specifier_func
)(void *priv_data
,
278 char **buf
, size_t avail_size
, const char **fmt
, va_list *args
);
281 * This is a custom vsnprintf() which handles the standard conversion
282 * specifier as well as custom ones.
284 * `fmt` is a typical printf()-style format string, with the following
287 * * The `*` width specifier is not accepted.
288 * * The `*` precision specifier is not accepted.
289 * * The `j` and `t` length modifiers are not accepted.
290 * * The `n` format specifier is not accepted.
291 * * The format specifiers defined in <inttypes.h> are not accepted
292 * except for `PRId64`, `PRIu64`, `PRIx64`, `PRIX64`, `PRIo64`, and
295 * `intro` specifies which special character immediately following an
296 * introductory `%` character in `fmt` is used to indicate a custom
297 * conversion specifier. For example, if `intro` is '@', then any `%@`
298 * sequence in `fmt` is the beginning of a custom conversion specifier.
300 * When a custom conversion specifier is encountered in `fmt`,
301 * the function calls `handle_specifier`. This callback receives:
304 * Custom, private data.
307 * Address of the current buffer pointer. `*buf` is the position to
308 * append new data. The callback must update `*buf` when appending
309 * new data. The callback must ensure not to write passed the whole
310 * buffer passed to bt_common_custom_vsnprintf().
313 * Number of bytes left in whole buffer from the `*buf` point.
316 * Address of the current format string pointer. `*fmt` points to
317 * the introductory `%` character, which is followed by the
318 * character `intro`. The callback must update `*fmt` so that it
319 * points after the whole custom conversion specifier.
322 * Variable argument list. Use va_arg() to get new arguments from
323 * this list and update it at the same time.
325 * Because this is an internal utility, this function and its callback
326 * do not return error codes: they abort when there's any error (bad
327 * format string, for example).
330 void bt_common_custom_vsnprintf(char *buf
, size_t buf_size
,
332 bt_common_handle_custom_specifier_func handle_specifier
,
333 void *priv_data
, const char *fmt
, va_list *args
);
336 * Variadic form of bt_common_custom_vsnprintf().
339 void bt_common_custom_snprintf(char *buf
, size_t buf_size
,
341 bt_common_handle_custom_specifier_func handle_specifier
,
342 void *priv_data
, const char *fmt
, ...);
345 * Returns the system page size.
348 size_t bt_common_get_page_size(int log_level
);
351 * Adds the digit separator `sep` as many times as needed to form groups
352 * of `digits_per_group` digits within `str`. `str` must have enough
353 * room to accomodate the new separators, that is:
355 * strlen(str) + (strlen(str) / digits_per_group) + 1
357 * Example: with `str` `1983198398213`, `digits_per_group` 3, and `sep`
358 * `,`, `str` becomes `1,983,198,398,213`.
360 * `strlen(str)` must not be 0. `digits_per_group` must not be 0. `sep`
364 void bt_common_sep_digits(char *str
, unsigned int digits_per_group
, char sep
);
367 * This is similar to what the command `fold --spaces` does: it wraps
368 * the input lines of `str`, breaking at spaces, and indenting each line
369 * with `indent` spaces so that each line fits the total length
372 * If an original line in `str` contains a word which is >= the content
373 * length (`total_length - indent`), then the corresponding folded line
374 * is also larger than the content length. In other words, breaking at
375 * spaces is a best effort, but it might not be possible.
377 * The returned string, on success, is owned by the caller.
380 GString
*bt_common_fold(const char *str
, unsigned int total_length
,
381 unsigned int indent
);
384 * Writes the terminal's width to `*width`, its height to `*height`,
385 * and returns 0 on success, or returns -1 on error.
388 int bt_common_get_term_size(unsigned int *width
, unsigned int *height
);
391 * Appends the textual content of `fp` to `str`, starting from its
392 * current position to the end of the file.
394 * This function does NOT rewind `fp` once it's done or on error.
397 int bt_common_append_file_content_to_g_string(GString
*str
, FILE *fp
);
400 void bt_common_abort(void) __attribute__((noreturn
));
403 * Wraps read() function to handle EINTR and partial reads.
404 * On success, it returns `count` received as parameter. On error, it returns a
405 * value smaller than the requested `count`.
408 ssize_t
bt_common_read(int fd
, void *buf
, size_t count
, int log_level
)
415 /* Never return an overflow value. */
416 BT_ASSERT_DBG(count
<= SSIZE_MAX
);
419 ret
= read(fd
, buf
+ i
, count
- i
);
421 if (errno
== EINTR
) {
422 #ifdef BT_LOG_WRITE_CUR_LVL
423 BT_LOG_WRITE_CUR_LVL(BT_LOG_DEBUG
, log_level
,
425 "read() call interrupted; retrying...");
427 /* retry operation */
430 #ifdef BT_LOG_WRITE_ERRNO_CUR_LVL
431 BT_LOG_WRITE_ERRNO_CUR_LVL(BT_LOG_ERROR
,
432 log_level
, BT_LOG_TAG
,
433 "Error while reading", ": fd=%d", fd
);
439 BT_ASSERT_DBG(i
<= count
);
440 } while (count
- i
> 0 && ret
> 0);
455 const char *bt_common_field_class_type_string(enum bt_field_class_type class_type
)
457 switch (class_type
) {
458 case BT_FIELD_CLASS_TYPE_BOOL
:
460 case BT_FIELD_CLASS_TYPE_BIT_ARRAY
:
462 case BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER
:
463 return "UNSIGNED_INTEGER";
464 case BT_FIELD_CLASS_TYPE_SIGNED_INTEGER
:
465 return "SIGNED_INTEGER";
466 case BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION
:
467 return "UNSIGNED_ENUMERATION";
468 case BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION
:
469 return "SIGNED_ENUMERATION";
470 case BT_FIELD_CLASS_TYPE_SINGLE_PRECISION_REAL
:
471 return "SINGLE_PRECISION_REAL";
472 case BT_FIELD_CLASS_TYPE_DOUBLE_PRECISION_REAL
:
473 return "DOUBLE_PRECISION_REAL";
474 case BT_FIELD_CLASS_TYPE_STRING
:
476 case BT_FIELD_CLASS_TYPE_STRUCTURE
:
478 case BT_FIELD_CLASS_TYPE_STATIC_ARRAY
:
479 return "STATIC_ARRAY";
480 case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY_WITHOUT_LENGTH_FIELD
:
481 return "DYNAMIC_ARRAY_WITHOUT_LENGTH_FIELD";
482 case BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY_WITH_LENGTH_FIELD
:
483 return "DYNAMIC_ARRAY_WITH_LENGTH_FIELD";
484 case BT_FIELD_CLASS_TYPE_OPTION_WITHOUT_SELECTOR_FIELD
:
485 return "OPTION_WITHOUT_SELECTOR_FIELD";
486 case BT_FIELD_CLASS_TYPE_OPTION_WITH_BOOL_SELECTOR_FIELD
:
487 return "OPTION_WITH_BOOL_SELECTOR_FIELD";
488 case BT_FIELD_CLASS_TYPE_OPTION_WITH_UNSIGNED_INTEGER_SELECTOR_FIELD
:
489 return "OPTION_WITH_UNSIGNED_INTEGER_SELECTOR_FIELD";
490 case BT_FIELD_CLASS_TYPE_OPTION_WITH_SIGNED_INTEGER_SELECTOR_FIELD
:
491 return "OPTION_WITH_SIGNED_INTEGER_SELECTOR_FIELD";
492 case BT_FIELD_CLASS_TYPE_VARIANT_WITHOUT_SELECTOR_FIELD
:
493 return "VARIANT_WITHOUT_SELECTOR_FIELD";
494 case BT_FIELD_CLASS_TYPE_VARIANT_WITH_UNSIGNED_INTEGER_SELECTOR_FIELD
:
495 return "VARIANT_WITH_UNSIGNED_INTEGER_SELECTOR_FIELD";
496 case BT_FIELD_CLASS_TYPE_VARIANT_WITH_SIGNED_INTEGER_SELECTOR_FIELD
:
497 return "VARIANT_WITH_SIGNED_INTEGER_SELECTOR_FIELD";
504 const char *bt_common_field_class_integer_preferred_display_base_string(enum bt_field_class_integer_preferred_display_base base
)
507 case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY
:
509 case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL
:
511 case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL
:
513 case BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL
:
514 return "HEXADECIMAL";
521 const char *bt_common_scope_string(enum bt_field_path_scope scope
)
524 case BT_FIELD_PATH_SCOPE_PACKET_CONTEXT
:
525 return "PACKET_CONTEXT";
526 case BT_FIELD_PATH_SCOPE_EVENT_COMMON_CONTEXT
:
527 return "EVENT_COMMON_CONTEXT";
528 case BT_FIELD_PATH_SCOPE_EVENT_SPECIFIC_CONTEXT
:
529 return "EVENT_SPECIFIC_CONTEXT";
530 case BT_FIELD_PATH_SCOPE_EVENT_PAYLOAD
:
531 return "EVENT_PAYLOAD";
538 const char *bt_common_event_class_log_level_string(
539 enum bt_event_class_log_level level
)
542 case BT_EVENT_CLASS_LOG_LEVEL_EMERGENCY
:
544 case BT_EVENT_CLASS_LOG_LEVEL_ALERT
:
546 case BT_EVENT_CLASS_LOG_LEVEL_CRITICAL
:
548 case BT_EVENT_CLASS_LOG_LEVEL_ERROR
:
550 case BT_EVENT_CLASS_LOG_LEVEL_WARNING
:
552 case BT_EVENT_CLASS_LOG_LEVEL_NOTICE
:
554 case BT_EVENT_CLASS_LOG_LEVEL_INFO
:
556 case BT_EVENT_CLASS_LOG_LEVEL_DEBUG_SYSTEM
:
557 return "DEBUG_SYSTEM";
558 case BT_EVENT_CLASS_LOG_LEVEL_DEBUG_PROGRAM
:
559 return "DEBUG_PROGRAM";
560 case BT_EVENT_CLASS_LOG_LEVEL_DEBUG_PROCESS
:
561 return "DEBUG_PROCESS";
562 case BT_EVENT_CLASS_LOG_LEVEL_DEBUG_MODULE
:
563 return "DEBUG_MODULE";
564 case BT_EVENT_CLASS_LOG_LEVEL_DEBUG_UNIT
:
566 case BT_EVENT_CLASS_LOG_LEVEL_DEBUG_FUNCTION
:
567 return "DEBUG_FUNCTION";
568 case BT_EVENT_CLASS_LOG_LEVEL_DEBUG_LINE
:
570 case BT_EVENT_CLASS_LOG_LEVEL_DEBUG
:
578 const char *bt_common_value_type_string(enum bt_value_type type
)
581 case BT_VALUE_TYPE_NULL
:
583 case BT_VALUE_TYPE_BOOL
:
585 case BT_VALUE_TYPE_UNSIGNED_INTEGER
:
586 return "UNSIGNED_INTEGER";
587 case BT_VALUE_TYPE_SIGNED_INTEGER
:
588 return "SIGNED_INTEGER";
589 case BT_VALUE_TYPE_REAL
:
591 case BT_VALUE_TYPE_STRING
:
593 case BT_VALUE_TYPE_ARRAY
:
595 case BT_VALUE_TYPE_MAP
:
603 GString
*bt_common_field_path_string(struct bt_field_path
*path
)
605 GString
*str
= g_string_new(NULL
);
614 g_string_append_printf(str
, "[%s", bt_common_scope_string(
615 bt_field_path_get_root_scope(path
)));
617 for (i
= 0; i
< bt_field_path_get_item_count(path
); i
++) {
618 const struct bt_field_path_item
*fp_item
=
619 bt_field_path_borrow_item_by_index_const(path
, i
);
621 switch (bt_field_path_item_get_type(fp_item
)) {
622 case BT_FIELD_PATH_ITEM_TYPE_INDEX
:
623 g_string_append_printf(str
, ", %" PRIu64
,
624 bt_field_path_item_index_get_index(fp_item
));
626 case BT_FIELD_PATH_ITEM_TYPE_CURRENT_ARRAY_ELEMENT
:
627 g_string_append(str
, ", <CUR>");
634 g_string_append(str
, "]");
641 const char *bt_common_logging_level_string(
642 enum bt_logging_level level
)
645 case BT_LOGGING_LEVEL_TRACE
:
647 case BT_LOGGING_LEVEL_DEBUG
:
649 case BT_LOGGING_LEVEL_INFO
:
651 case BT_LOGGING_LEVEL_WARNING
:
653 case BT_LOGGING_LEVEL_ERROR
:
655 case BT_LOGGING_LEVEL_FATAL
:
657 case BT_LOGGING_LEVEL_NONE
:
665 const char *bt_common_func_status_string(int status
)
668 case __BT_FUNC_STATUS_OVERFLOW_ERROR
:
670 case __BT_FUNC_STATUS_UNKNOWN_OBJECT
:
671 return "UNKNOWN_OBJECT";
672 case __BT_FUNC_STATUS_MEMORY_ERROR
:
673 return "MEMORY_ERROR";
674 case __BT_FUNC_STATUS_USER_ERROR
:
676 case __BT_FUNC_STATUS_ERROR
:
678 case __BT_FUNC_STATUS_OK
:
680 case __BT_FUNC_STATUS_END
:
682 case __BT_FUNC_STATUS_NOT_FOUND
:
684 case __BT_FUNC_STATUS_AGAIN
:
686 case __BT_FUNC_STATUS_INTERRUPTED
:
687 return "INTERRUPTED";
693 #define NS_PER_S_I INT64_C(1000000000)
694 #define NS_PER_S_U UINT64_C(1000000000)
697 int bt_common_clock_value_from_ns_from_origin(
698 int64_t cc_offset_seconds
, uint64_t cc_offset_cycles
,
699 uint64_t cc_freq
, int64_t ns_from_origin
,
703 int64_t offset_in_ns
;
704 uint64_t value_in_ns
;
705 uint64_t rem_value_in_ns
;
706 uint64_t value_periods
;
707 uint64_t value_period_cycles
;
710 BT_ASSERT_DBG(raw_value
);
712 /* Compute offset part of requested value, in nanoseconds */
713 if (!bt_safe_to_mul_int64(cc_offset_seconds
, NS_PER_S_I
)) {
718 offset_in_ns
= cc_offset_seconds
* NS_PER_S_I
;
720 if (cc_freq
== NS_PER_S_U
) {
721 ns_to_add
= (int64_t) cc_offset_cycles
;
723 if (!bt_safe_to_mul_int64((int64_t) cc_offset_cycles
,
729 ns_to_add
= ((int64_t) cc_offset_cycles
* NS_PER_S_I
) /
733 if (!bt_safe_to_add_int64(offset_in_ns
, ns_to_add
)) {
738 offset_in_ns
+= ns_to_add
;
740 /* Value part in nanoseconds */
741 if (ns_from_origin
< offset_in_ns
) {
746 value_in_ns
= (uint64_t) (ns_from_origin
- offset_in_ns
);
748 /* Number of whole clock periods in `value_in_ns` */
749 value_periods
= value_in_ns
/ NS_PER_S_U
;
751 /* Remaining nanoseconds in cycles + whole clock periods in cycles */
752 rem_value_in_ns
= value_in_ns
- value_periods
* NS_PER_S_U
;
754 if (value_periods
> UINT64_MAX
/ cc_freq
) {
759 if (!bt_safe_to_mul_uint64(value_periods
, cc_freq
)) {
764 value_period_cycles
= value_periods
* cc_freq
;
766 if (!bt_safe_to_mul_uint64(cc_freq
, rem_value_in_ns
)) {
771 if (!bt_safe_to_add_uint64(cc_freq
* rem_value_in_ns
/ NS_PER_S_U
,
772 value_period_cycles
)) {
777 *raw_value
= cc_freq
* rem_value_in_ns
/ NS_PER_S_U
+
785 * bt_g_string_append_printf cannot be inlined because it expects a
786 * variadic argument list.
789 int bt_common_g_string_append_printf(GString
*str
, const char *fmt
, ...);
792 void bt_common_g_string_append(GString
*str
, const char *s
)
794 gsize len
, allocated_len
, s_len
;
796 /* str->len excludes \0. */
799 allocated_len
= str
->allocated_len
- 1;
801 if (G_UNLIKELY(allocated_len
< len
+ s_len
)) {
803 g_string_set_size(str
, len
+ s_len
);
805 str
->len
= len
+ s_len
;
807 memcpy(str
->str
+ len
, s
, s_len
+ 1);
811 void bt_common_g_string_append_c(GString
*str
, char c
)
813 gsize len
, allocated_len
, s_len
;
815 /* str->len excludes \0. */
818 allocated_len
= str
->allocated_len
- 1;
820 if (G_UNLIKELY(allocated_len
< len
+ s_len
)) {
822 g_string_set_size(str
, len
+ s_len
);
824 str
->len
= len
+ s_len
;
827 str
->str
[len
+ 1] = '\0';
830 #endif /* BABELTRACE_COMMON_INTERNAL_H */