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# $Id$
# Read the source files and output the statistics #defines and allocation code.
import re, string, sys
from dist import compare_srcfile
from dist import source_paths_list
# Read the source files and build a dictionary of handles and stat counters.
import stat_class
class Stat:
def __init__(self, config, str):
self.config = config
self.str = str
# method_stats --
# Read the API class, and create statistics entries for each method.
method_stats = {}
import api_class
api = api_class.methods
for l in sorted(api.items()):
if l[1].config.count('noauto'):
continue
# Stat counter per method.
method_stats[l[0].replace('.', '_').upper()] = Stat([], l[0])
# Stat counter of restarts per method.
if l[1].config.count('restart'):
method_stats[l[0].replace('.', '_').upper() +
'_RESTART'] = Stat([], l[0] + ' method restarts')
# print_def --
# Print the #defines for the stat.h file.
def print_def(title, list):
def_cnt = 0
f.write('/*\n')
f.write(' * Statistics entries for ' + title + '.\n')
f.write(' */\n')
for l in sorted(list.items()):
n = 'WT_STAT_' + l[0]
f.write('#define\t' + n +
"\t" * max(1, 5 - int(len(n) / 8)) + "%5d" % def_cnt + '\n')
def_cnt += 1
f.write('\n')
# Update the #defines in the stat.h file.
tmp_file = '__tmp'
f = open(tmp_file, 'w')
skip = 0
for line in open('../inc_posix/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_def('CACHE handle', stat_class.cache_stats)
print_def('DB/IDB database', stat_class.idb_dstats)
print_def('DB/IDB handle', stat_class.idb_stats)
print_def('ENV/IENV handle', stat_class.ienv_stats)
print_def('FH handle', stat_class.fh_stats)
print_def('Methods', method_stats)
f.close()
compare_srcfile(tmp_file, '../inc_posix/stat.h')
# print_func --
# Print the functions for the stat.c file.
def print_func(handle, list):
f.write('\n')
f.write('int\n')
f.write('__wt_stat_alloc_' +
handle.lower() + '_stats(ENV *env, WT_STATS **statsp)\n')
f.write('{\n')
f.write('\tWT_STATS *stats;\n\n')
f.write('\tWT_RET(__wt_calloc(env, ' +
str(len(list) + 1) + ', sizeof(WT_STATS), &stats));\n\n')
for l in sorted(list.items()):
o = '\tstats[WT_STAT_' + l[0] + '].desc = "' + l[1].str + '";\n'
if len(o) + 7 > 80:
o = o.replace('= ', '=\n\t ')
f.write(o)
f.write('\n')
f.write('\t*statsp = stats;\n')
f.write('\treturn (0);\n')
f.write('}\n')
f.write('\n')
f.write('void\n')
f.write('__wt_stat_clear_' +
handle.lower() + '_stats(WT_STATS *stats)\n')
f.write('{\n')
for l in sorted(list.items()):
# Items marked permanent aren't cleared by the stat clear
# methods.
if not l[1].config.count('perm'):
f.write('\tstats[WT_STAT_' + l[0] + '].v = 0;\n');
f.write('}\n')
# Write the stat allocation, clear and print 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('CACHE', stat_class.cache_stats)
print_func('DATABASE', stat_class.idb_dstats)
print_func('DB', stat_class.idb_stats)
print_func('ENV', stat_class.ienv_stats)
print_func('FH', stat_class.fh_stats)
print_func('METHOD', method_stats)
f.close()
compare_srcfile(tmp_file, '../support/stat.c')
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