/* Copyright (C) 2008-2009 Sun Microsystems, Inc This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /** @file storage/perfschema/table_file_summary.cc Table FILE_SUMMARY_BY_xxx (implementation). */ #include "mysql_priv.h" #include "pfs_instr_class.h" #include "pfs_column_types.h" #include "pfs_column_values.h" #include "table_file_summary.h" #include "pfs_global.h" THR_LOCK table_file_summary_by_event_name::m_table_lock; static const TABLE_FIELD_TYPE fs_by_event_name_field_types[]= { { { C_STRING_WITH_LEN("EVENT_NAME") }, { C_STRING_WITH_LEN("varchar(128)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("COUNT_READ") }, { C_STRING_WITH_LEN("bigint(20)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("COUNT_WRITE") }, { C_STRING_WITH_LEN("bigint(20)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("SUM_NUMBER_OF_BYTES_READ") }, { C_STRING_WITH_LEN("bigint(20)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("SUM_NUMBER_OF_BYTES_WRITE") }, { C_STRING_WITH_LEN("bigint(20)") }, { NULL, 0} } }; TABLE_FIELD_DEF table_file_summary_by_event_name::m_field_def= { 5, fs_by_event_name_field_types }; PFS_engine_table_share table_file_summary_by_event_name::m_share= { { C_STRING_WITH_LEN("FILE_SUMMARY_BY_EVENT_NAME") }, &pfs_truncatable_acl, &table_file_summary_by_event_name::create, NULL, /* write_row */ table_file_summary_by_event_name::delete_all_rows, 1000, /* records */ sizeof(PFS_simple_index), &m_table_lock, &m_field_def, false /* checked */ }; PFS_engine_table* table_file_summary_by_event_name::create(void) { return new table_file_summary_by_event_name(); } int table_file_summary_by_event_name::delete_all_rows(void) { reset_file_class_io(); return 0; } table_file_summary_by_event_name::table_file_summary_by_event_name() : PFS_readonly_table(&m_share, &m_pos), m_pos(1), m_next_pos(1) {} void table_file_summary_by_event_name::reset_position(void) { m_pos.m_index= 1; m_next_pos.m_index= 1; } int table_file_summary_by_event_name::rnd_next(void) { PFS_file_class *file_class; m_pos.set_at(&m_next_pos); file_class= find_file_class(m_pos.m_index); if (file_class) { make_row(file_class); m_next_pos.set_after(&m_pos); return 0; } return HA_ERR_END_OF_FILE; } int table_file_summary_by_event_name::rnd_pos(const void *pos) { PFS_file_class *file_class; set_position(pos); file_class= find_file_class(m_pos.m_index); if (file_class) { make_row(file_class); return 0; } return HA_ERR_RECORD_DELETED; } /** Build a row. @param klass the file class the cursor is reading */ void table_file_summary_by_event_name::make_row(PFS_file_class *klass) { m_row.m_name= &klass->m_name[0]; m_row.m_name_length= klass->m_name_length; m_row.m_file_stat= klass->m_file_stat; } int table_file_summary_by_event_name::read_row_values(TABLE *table, unsigned char *, Field **fields, bool read_all) { Field *f; /* Set the null bits */ DBUG_ASSERT(table->s->null_bytes == 0); /* The row always exists for classes */ for (; (f= *fields) ; fields++) { if (read_all || bitmap_is_set(table->read_set, f->field_index)) { switch(f->field_index) { case 0: /* NAME */ set_field_varchar_utf8(f, m_row.m_name, m_row.m_name_length); break; case 1: /* COUNT_READ */ set_field_ulonglong(f, m_row.m_file_stat.m_count_read); break; case 2: /* COUNT_WRITE */ set_field_ulonglong(f, m_row.m_file_stat.m_count_write); break; case 3: /* READ_BYTES */ set_field_ulonglong(f, m_row.m_file_stat.m_read_bytes); break; case 4: /* WRITE_BYTES */ set_field_ulonglong(f, m_row.m_file_stat.m_write_bytes); break; default: DBUG_ASSERT(false); } } } return 0; } THR_LOCK table_file_summary_by_instance::m_table_lock; static const TABLE_FIELD_TYPE fs_by_instance_field_types[]= { { { C_STRING_WITH_LEN("FILE_NAME") }, { C_STRING_WITH_LEN("varchar(512)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("EVENT_NAME") }, { C_STRING_WITH_LEN("varchar(128)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("COUNT_READ") }, { C_STRING_WITH_LEN("bigint(20)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("COUNT_WRITE") }, { C_STRING_WITH_LEN("bigint(20)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("SUM_NUMBER_OF_BYTES_READ") }, { C_STRING_WITH_LEN("bigint(20)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("SUM_NUMBER_OF_BYTES_WRITE") }, { C_STRING_WITH_LEN("bigint(20)") }, { NULL, 0} } }; TABLE_FIELD_DEF table_file_summary_by_instance::m_field_def= { 6, fs_by_instance_field_types }; PFS_engine_table_share table_file_summary_by_instance::m_share= { { C_STRING_WITH_LEN("FILE_SUMMARY_BY_INSTANCE") }, &pfs_truncatable_acl, &table_file_summary_by_instance::create, NULL, /* write_row */ table_file_summary_by_instance::delete_all_rows, 1000, /* records */ sizeof(PFS_simple_index), &m_table_lock, &m_field_def, false /* checked */ }; PFS_engine_table* table_file_summary_by_instance::create(void) { return new table_file_summary_by_instance(); } int table_file_summary_by_instance::delete_all_rows(void) { reset_file_instance_io(); return 0; } table_file_summary_by_instance::table_file_summary_by_instance() : PFS_readonly_table(&m_share, &m_pos), m_row_exists(false), m_pos(0), m_next_pos(0) {} void table_file_summary_by_instance::reset_position(void) { m_pos.m_index= 0; m_next_pos.m_index= 0; } int table_file_summary_by_instance::rnd_next(void) { PFS_file *pfs; for (m_pos.set_at(&m_next_pos); m_pos.m_index < file_max; m_pos.next()) { pfs= &file_array[m_pos.m_index]; if (pfs->m_lock.is_populated()) { make_row(pfs); m_next_pos.set_after(&m_pos); return 0; } } return HA_ERR_END_OF_FILE; } int table_file_summary_by_instance::rnd_pos(const void *pos) { PFS_file *pfs; set_position(pos); DBUG_ASSERT(m_pos.m_index < file_max); pfs= &file_array[m_pos.m_index]; if (! pfs->m_lock.is_populated()) return HA_ERR_RECORD_DELETED; make_row(pfs); return 0; } /** Build a row. @param pfs the file the cursor is reading */ void table_file_summary_by_instance::make_row(PFS_file *pfs) { pfs_lock lock; PFS_file_class *safe_class; m_row_exists= false; /* Protect this reader against a file delete */ pfs->m_lock.begin_optimistic_lock(&lock); safe_class= sanitize_file_class(pfs->m_class); if (unlikely(safe_class == NULL)) return; m_row.m_filename= pfs->m_filename; m_row.m_filename_length= pfs->m_filename_length; m_row.m_name= safe_class->m_name; m_row.m_name_length= safe_class->m_name_length; m_row.m_file_stat= pfs->m_file_stat; if (pfs->m_lock.end_optimistic_lock(&lock)) m_row_exists= true; } int table_file_summary_by_instance::read_row_values(TABLE *table, unsigned char *, Field **fields, bool read_all) { Field *f; if (unlikely(! m_row_exists)) return HA_ERR_RECORD_DELETED; /* Set the null bits */ DBUG_ASSERT(table->s->null_bytes == 0); for (; (f= *fields) ; fields++) { if (read_all || bitmap_is_set(table->read_set, f->field_index)) { switch(f->field_index) { case 0: /* FILENAME */ set_field_varchar_utf8(f, m_row.m_filename, m_row.m_filename_length); break; case 1: /* NAME */ set_field_varchar_utf8(f, m_row.m_name, m_row.m_name_length); break; case 2: /* COUNT_READ */ set_field_ulonglong(f, m_row.m_file_stat.m_count_read); break; case 3: /* COUNT_WRITE */ set_field_ulonglong(f, m_row.m_file_stat.m_count_write); break; case 4: /* READ_BYTES */ set_field_ulonglong(f, m_row.m_file_stat.m_read_bytes); break; case 5: /* WRITE_BYTES */ set_field_ulonglong(f, m_row.m_file_stat.m_write_bytes); break; default: DBUG_ASSERT(false); } } } return 0; }