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# Read the source files and output the statistics #defines and allocation code.
import re, string, sys, textwrap
from operator import attrgetter
from dist import compare_srcfile
from dist import source_paths_list
# Read the source files.
from stat_data import btree_stats, connection_stats
# print_struct --
# Print the structures for the stat.h file.
def print_struct(title, name, list):
f.write('/*\n')
f.write(' * Statistics entries for ' + title + ' handle.\n')
f.write(' */\n')
f.write('struct __wt_' + name + '_stats {\n')
# Sort the structure fields by their description, so the eventual
# disply is sorted by string.
for l in sorted(list, key=attrgetter('desc')):
f.write('\tWT_STATS ' + l.name + ';\n')
f.write('};\n\n')
# Update the #defines in the stat.h file.
tmp_file = '__tmp'
f = open(tmp_file, 'w')
skip = 0
for line in open('../src/include/stat.h', 'r'):
if not skip:
f.write(line)
if line.count('Statistics section: END'):
f.write(line)
skip = 0
elif line.count('Statistics section: BEGIN'):
f.write('\n')
skip = 1
print_struct('BTREE', 'btree', btree_stats)
print_struct('CONNECTION', 'connection', connection_stats)
f.close()
compare_srcfile(tmp_file, '../src/include/stat.h')
# print_define --
# Print the #defines for the wiredtiger.in file.
def print_define():
# Sort the structure fields by their description so they match
# the structure lists.
f.write('''
/*!
* @name Statistics for connection handles
* @anchor statistics_keys
* @anchor statistics_conn
* Statistics in WiredTiger are accessed through cursors with \c "statistics:"
* URIs. Individual statistics can be queried through the cursor using the
* following keys.
* @{
*/
''')
for v, l in enumerate(sorted(connection_stats, key=attrgetter('desc'))):
f.write('/*! %s */\n' % '\n * '.join(textwrap.wrap(l.desc, 70)))
f.write('#define\tWT_STAT_' + l.name + "\t" *
max(1, 6 - int((len('WT_STAT_') + len(l.name)) / 8)) +
str(v) + '\n')
f.write('''
/*!
* @}
* @name Statistics for file objects
* @anchor statistics_file
* @{
*/
''')
for v, l in enumerate(sorted(btree_stats, key=attrgetter('desc'))):
f.write('/*! %s */\n' % '\n * '.join(textwrap.wrap(l.desc, 70)))
f.write('#define\tWT_STAT_' + l.name + "\t" *
max(1, 6 - int((len('WT_STAT_') + len(l.name)) / 8)) +
str(v) + '\n')
f.write('/*! @} */\n')
# Update the #defines in the wiredtiger.in file.
tmp_file = '__tmp'
f = open(tmp_file, 'w')
skip = 0
for line in open('../src/include/wiredtiger.in', 'r'):
if not skip:
f.write(line)
if line.count('Statistics section: END'):
f.write(line)
skip = 0
elif line.count('Statistics section: BEGIN'):
f.write(' */\n')
skip = 1
print_define()
f.write('/*\n')
f.close()
compare_srcfile(tmp_file, '../src/include/wiredtiger.in')
# print_func --
# Print the functions for the stat.c file.
def print_func(name, list):
f.write('''
int
__wt_stat_alloc_''' + name + '''_stats(WT_SESSION_IMPL *session, WT_''' +
name.upper() + '''_STATS **statsp)
{
\tWT_''' + name.upper() + '''_STATS *stats;
\tWT_RET(__wt_calloc_def(session, 1, &stats));
''')
for l in sorted(list):
o = '\tstats->' + l.name + '.desc = "' + l.desc + '";\n'
if len(o) + 7 > 80:
o = o.replace('= ', '=\n\t ')
f.write(o)
f.write('''
\t*statsp = stats;
\treturn (0);
}
''')
f.write('''
void
__wt_stat_clear_''' + name + '''_stats(WT_STATS *stats_arg)
{
\tWT_''' + name.upper() + '''_STATS *stats;
\tstats = (WT_''' + name.upper() + '''_STATS *)stats_arg;
''')
for l in sorted(list):
# Items marked permanent aren't cleared by the stat clear
# methods.
if not l.config.count('perm'):
f.write('\tstats->' + l.name + '.v = 0;\n');
f.write('}\n')
# Write the stat allocation and clear routines to the stat.c file.
f = open(tmp_file, 'w')
f.write('/* DO NOT EDIT: automatically built by dist/stat.py. */\n\n')
f.write('#include "wt_internal.h"\n')
print_func('btree', btree_stats)
print_func('connection', connection_stats)
f.close()
compare_srcfile(tmp_file, '../src/support/stat.c')
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