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Diffstat (limited to 'liberror_save_backtrace.3')
-rw-r--r-- | liberror_save_backtrace.3 | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/liberror_save_backtrace.3 b/liberror_save_backtrace.3 new file mode 100644 index 0000000..35a4844 --- /dev/null +++ b/liberror_save_backtrace.3 @@ -0,0 +1,69 @@ +.TH LIBERROR_SAVE_BACKTRACE 3 2019-04-13 liberror +.SH NAME +liberror_save_backtrace \- fetch backtrace and assign it to an error +.SH SYNOPSIS +.nf +#include <liberror.h> + +int liberror_save_backtrace(struct liberror_error *\fIerror\fP); +.fi +.PP +Link with +.IR \-lerror . +.SH DESCRIPTION +The +.BR liberror_save_backtrace () +function fetches the backtrace for the call to the function +and stores it in +.IR error , +deallocating any already assigned backtrace. If +.I error +is +.IR NULL , +the backtrace will assigned to the next error that is +assigned to the thread. The +.IR liberror_set_error (3) +function calls this function, so there is no need for the +user to call this function, however, calling this function +before or after (preferably before for better performance) +call the +.IR liberror_set_error (3) +function or any helper function that calls the +.IR liberror_set_error (3) +function will produce a cleaner backtrace. +.PP +.B liberror +only implements a no-operation function that returns 0, +the actual implementation is implemented in the +.BR liberror-backtrace (7) +library. +.SH RETURN VALUE +The +.BR liberror_save_backtrace () +function returns 0 upon successful completion, +on failure -1 is returned without changing +.IR errno . +.SH ERRORS +.I errno +will never be changed. +.SH EXAMPLES +None. +.SH APPLICATION USAGE +None. +.SH RATIONALE +None. +.SH FUTURE DIRECTIONS +None. +.SH NOTES +None. +.SH SEE ALSO +.BR liberror (7), +.BR liberror.h (0), +.BR liberror_copy_error (3), +.BR liberror_free_error (3), +.BR liberror_get_error (3), +.BR liberror_print_bactrace (3), +.BR liberror_print_error (3), +.BR liberror_reset_error (3), +.BR liberror_set_error (3), +.BR liberror_set_error_errno (3) |