rb
The Report Browser Tool
The Report Browser (RB) tool makes it possible to browse and
format error reports written by the error logger handler
log_mf_h
.
Functions
filter(Filters)
filter(Filters, Dates)
Filters = [filter()]
filter() = {Key, Value} | {Key, Value, no} | {Key, RegExp, re} | {Key, RegExp, re, no}
Key = term()
Value = term()
RegExp = string() | {string, Options} | mp(), {mp(), Options}
Dates = {DateFrom, DateTo} | {DateFrom, from} | {DateTo, to}
DateFrom = DateTo = {date(), time()}
date() and time() are the same type as in the
calendar
module
This function displays the reports that match the provided filters.
When a filter includes the no
atom it will exclude the reports that match
that filter.
The reports are matched using the proplists
module. The report must be a proplist
to be matched against any of the filters()
.
If the filter is of the form {Key, RegExp, re}
the report must contain an element with
key = Key
and Value
must match the RegExp regular expression.
If the Dates parameter is provided, then the reports are filtered according to the date
when they occurred. If Dates is of the form {DateFrom, from}
then reports that occurred
after DateFrom are displayed.
If Dates is of the form {DateTo, to}
then reports that occurred before DateTo
are displayed.
If two Dates are provided, then reports that occurred between those dates are returned.
If you only want to filter only by dates, then you can provide the empty list as the Filters parameter.
See rb:grep/1
for more information on the RegExp parameter.
grep(RegExp)
RegExp = string() | {string, Options} | mp(), {mp(), Options}
All reports containing the regular expression RegExp
are printed.
RegExp
can be a string containing the regular
expression; a tuple with the string and the options for
compilation; a compiled regular expression; a compiled
regular expression and the options for running it.
Refer to the module re
and specially the function re:run/3
for a definition of valid regular expressions and options.
h()
help()
Prints the on-line help information.
list()
list(Type)
Type = type()
type() = crash_report | supervisor_report | error | progress
This function lists all reports loaded in the
rb_server
. Each report is given a unique number that
can be used as a reference to the report in the
show/1
function.
If no Type
is given, all reports are listed.
rescan()
rescan(Options)
Options = [opt()]
Rescans the report directory. Options
is the same as
for start()
.
show()
show(Report)
Report = int() | type()
If a type argument is given, all loaded reports of this type are printed. If an integer argument is given, the report with this reference number is printed. If no argument is given, all reports are shown.
start()
start(Options)
Options = [opt()]
opt() = {start_log, FileName} | {max, MaxNoOfReports} | {report_dir, DirString} | {type, ReportType} | {abort_on_error, Bool}
FileName = string() | standard_io
MaxNoOfReports = int() | all
DirString = string()
ReportType = type() | [type()] | all
Bool = true | false
The function start/1
starts the rb_server
with the specified options, while start/0
starts with
default options. The rb_server
must be started before
reports can be browsed. When the rb_server
is
started, the files in the specified directory are
scanned. The other functions assume that the server has
started.
{start_log, FileName}
starts logging to file. All
reports will be printed to the named file. The default is
standard_io
.
{max, MaxNoOfReports}
. Controls how many reports the
rb_server
should read on start-up. This option is
useful as the directory may contain 20.000 reports. If this
option is given, the MaxNoOfReports
latest reports
will be read. The default is 'all'.
{report_dir, DirString}
. Defines the directory where
the error log files are located. The default is {sasl, error_logger_mf_dir}
.
{type, ReportType}
. Controls what kind of reports the
rb_server
should read on start-up. ReportType
is a supported type, 'all', or a list of supported
types. The default is 'all'.
{abort_on_error, Bool}
. This option specifies whether
or not logging should be aborted if rb encounters an unprintable
report. (You may get a report on incorrect form if the
error_logger
function error_msg
or
info_msg
has been called with an invalid format string).
If Bool
is true
, rb will stop logging (and print an
error message to stdout) if it encounters a badly formatted report.
If logging to file is enabled, an error message will be appended to
the log file as well.
If Bool
is false
(which is the default value), rb will
print an error message to stdout for every bad report it
encounters, but the logging process is never aborted. All printable
reports will be written. If logging to file is enabled, rb prints
* UNPRINTABLE REPORT *
in the log file at the location of an
unprintable report.
start_log(FileName)
FileName = string()
Redirects all report output from the RB tool to the specified file.
stop()
Stops the rb_server
.
stop_log()
Closes the log file. The output from the RB tool will be
directed to standard_io
.