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Code Issues

Minor refactoring and support for records longer than 64KB (not really actual, but just in case).

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This commit is contained in:
dimitr 2013-08-21 07:41:39 +00:00
parent 8586171695
commit 99b1b17f27
2 changed files with 91 additions and 100 deletions
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115
src/jrd/DatabaseSnapshot.cpp
View File

@ -462,7 +462,7 @@ DatabaseSnapshot::DatabaseSnapshot(thread_db* tdbb, MemoryPool& pool)
bool dbb_processed = false, fields_processed = false;
bool dbb_allowed = false, att_allowed = false;
DumpRecord dumpRecord;
DumpRecord dumpRecord(*tdbb->getDefaultPool());
while (reader.getRecord(dumpRecord))
{
const int rid = dumpRecord.getRelationId();
@ -720,22 +720,25 @@ void DatabaseSnapshot::dumpData(thread_db* tdbb)
Database* const dbb = tdbb->getDatabase();
fb_assert(dbb);
MemoryPool& pool = *dbb->dbb_permanent;
if (!dbb->dbb_monitoring_data)
dbb->dbb_monitoring_data = FB_NEW(*dbb->dbb_permanent) MonitoringData(dbb);
dbb->dbb_monitoring_data = FB_NEW(pool) MonitoringData(dbb);
MonitoringData::Guard guard(dbb->dbb_monitoring_data);
dbb->dbb_monitoring_data->cleanup();
Writer writer(dbb->dbb_monitoring_data);
DumpRecord record(pool);
// Database information
putDatabase(dbb, writer, fb_utils::genUniqueId());
putDatabase(record, dbb, writer, fb_utils::genUniqueId());
// Attachment information
Attachment* const self_attachment = tdbb->getAttachment();
dumpAttachment(self_attachment, writer);
dumpAttachment(record, self_attachment, writer);
try
{
@ -747,7 +750,7 @@ void DatabaseSnapshot::dumpData(thread_db* tdbb)
if (attachment != self_attachment)
{
Attachment::SyncGuard attGuard(attachment, FB_FUNCTION);
dumpAttachment(attachment, writer);
dumpAttachment(record, attachment, writer);
}
}
@ -758,7 +761,7 @@ void DatabaseSnapshot::dumpData(thread_db* tdbb)
attachment = attachment->att_next)
{
Attachment::SyncGuard attGuard(attachment, FB_FUNCTION);
dumpAttachment(attachment, writer);
dumpAttachment(record, attachment, writer);
}
}
@ -771,13 +774,12 @@ void DatabaseSnapshot::dumpData(thread_db* tdbb)
}
}
void DatabaseSnapshot::dumpAttachment(const Attachment* attachment, Writer& writer)
void DatabaseSnapshot::dumpAttachment(DumpRecord& record, const Attachment* attachment,
Writer& writer)
{
if (!putAttachment(attachment, writer, fb_utils::genUniqueId()))
if (!putAttachment(record, attachment, writer, fb_utils::genUniqueId()))
return;
putContextVars(attachment->att_context_vars, writer, attachment->att_attachment_id, true);
jrd_tra* transaction = NULL;
jrd_req* request = NULL;
@ -786,8 +788,7 @@ void DatabaseSnapshot::dumpAttachment(const Attachment* attachment, Writer& writ
for (transaction = attachment->att_transactions; transaction;
transaction = transaction->tra_next)
{
putTransaction(transaction, writer, fb_utils::genUniqueId());
putContextVars(transaction->tra_context_vars, writer, transaction->tra_number, false);
putTransaction(record, transaction, writer, fb_utils::genUniqueId());
}
// Call stack information
@ -805,7 +806,7 @@ void DatabaseSnapshot::dumpAttachment(const Attachment* attachment, Writer& writ
(JrdStatement::FLAG_INTERNAL | JrdStatement::FLAG_SYS_TRIGGER)) &&
request->req_caller)
{
putCall(request, writer, fb_utils::genUniqueId());
putCall(record, request, writer, fb_utils::genUniqueId());
}
}
}
@ -821,7 +822,7 @@ void DatabaseSnapshot::dumpAttachment(const Attachment* attachment, Writer& writ
if (!(request->getStatement()->flags &
(JrdStatement::FLAG_INTERNAL | JrdStatement::FLAG_SYS_TRIGGER)))
{
putRequest(request, writer, fb_utils::genUniqueId());
putRequest(record, request, writer, fb_utils::genUniqueId());
}
}
}
@ -833,13 +834,14 @@ SINT64 DatabaseSnapshot::getGlobalId(int value)
}
void DatabaseSnapshot::putDatabase(const Database* database, Writer& writer, int stat_id)
void DatabaseSnapshot::putDatabase(DumpRecord& record, const Database* database,
Writer& writer, int stat_id)
{
fb_assert(database);
DumpRecord record(rel_mon_database);
record.reset(rel_mon_database);
PathName databaseName(*getDefaultMemoryPool(), database->dbb_database_name);
PathName databaseName(database->dbb_database_name);
ISC_systemToUtf8(databaseName);
// database name or alias (MUST BE ALWAYS THE FIRST ITEM PASSED!)
@ -923,9 +925,7 @@ void DatabaseSnapshot::putDatabase(const Database* database, Writer& writer, int
// crypt thread status
if (database->dbb_crypto_manager)
{
record.storeInteger(f_mon_db_crypt_page, database->dbb_crypto_manager->getCurrentPage());
}
// statistics
record.storeGlobalId(f_mon_db_stat_id, getGlobalId(stat_id));
@ -933,20 +933,20 @@ void DatabaseSnapshot::putDatabase(const Database* database, Writer& writer, int
if (Config::getSharedCache())
{
putStatistics(database->dbb_stats, writer, stat_id, stat_database);
putMemoryUsage(database->dbb_memory_stats, writer, stat_id, stat_database);
putStatistics(record, database->dbb_stats, writer, stat_id, stat_database);
putMemoryUsage(record, database->dbb_memory_stats, writer, stat_id, stat_database);
}
else
{
RuntimeStatistics zero_rt_stats;
MemoryStats zero_mem_stats;
putStatistics(zero_rt_stats, writer, stat_id, stat_database);
putMemoryUsage(zero_mem_stats, writer, stat_id, stat_database);
putStatistics(record, zero_rt_stats, writer, stat_id, stat_database);
putMemoryUsage(record, zero_mem_stats, writer, stat_id, stat_database);
}
}
bool DatabaseSnapshot::putAttachment(const Jrd::Attachment* attachment,
bool DatabaseSnapshot::putAttachment(DumpRecord& record, const Jrd::Attachment* attachment,
Writer& writer, int stat_id)
{
fb_assert(attachment);
@ -954,7 +954,7 @@ bool DatabaseSnapshot::putAttachment(const Jrd::Attachment* attachment,
if (!attachment->att_user)
return false;
DumpRecord record(rel_mon_attachments);
record.reset(rel_mon_attachments);
int temp = mon_state_idle;
@ -968,7 +968,7 @@ bool DatabaseSnapshot::putAttachment(const Jrd::Attachment* attachment,
}
}
PathName attName(*getDefaultMemoryPool(), attachment->att_filename);
PathName attName(attachment->att_filename);
ISC_systemToUtf8(attName);
// user (MUST BE ALWAYS THE FIRST ITEM PASSED!)
@ -1016,24 +1016,28 @@ bool DatabaseSnapshot::putAttachment(const Jrd::Attachment* attachment,
if (Config::getSharedCache())
{
putStatistics(attachment->att_stats, writer, stat_id, stat_attachment);
putMemoryUsage(attachment->att_memory_stats, writer, stat_id, stat_attachment);
putStatistics(record, attachment->att_stats, writer, stat_id, stat_attachment);
putMemoryUsage(record, attachment->att_memory_stats, writer, stat_id, stat_attachment);
}
else
{
putStatistics(attachment->att_database->dbb_stats, writer, stat_id, stat_attachment);
putMemoryUsage(attachment->att_database->dbb_memory_stats, writer, stat_id, stat_attachment);
putStatistics(record, attachment->att_database->dbb_stats, writer, stat_id, stat_attachment);
putMemoryUsage(record, attachment->att_database->dbb_memory_stats, writer, stat_id, stat_attachment);
}
// context vars
putContextVars(record, attachment->att_context_vars, writer, attachment->att_attachment_id, true);
return true;
}
void DatabaseSnapshot::putTransaction(const jrd_tra* transaction, Writer& writer, int stat_id)
void DatabaseSnapshot::putTransaction(DumpRecord& record, const jrd_tra* transaction,
Writer& writer, int stat_id)
{
fb_assert(transaction);
DumpRecord record(rel_mon_transactions);
record.reset(rel_mon_transactions);
int temp;
@ -1082,16 +1086,20 @@ void DatabaseSnapshot::putTransaction(const jrd_tra* transaction, Writer& writer
// statistics
record.storeGlobalId(f_mon_tra_stat_id, getGlobalId(stat_id));
writer.putRecord(record);
putStatistics(transaction->tra_stats, writer, stat_id, stat_transaction);
putMemoryUsage(transaction->tra_memory_stats, writer, stat_id, stat_transaction);
putStatistics(record, transaction->tra_stats, writer, stat_id, stat_transaction);
putMemoryUsage(record, transaction->tra_memory_stats, writer, stat_id, stat_transaction);
// context vars
putContextVars(record, transaction->tra_context_vars, writer, transaction->tra_number, false);
}
void DatabaseSnapshot::putRequest(const jrd_req* request, Writer& writer, int stat_id)
void DatabaseSnapshot::putRequest(DumpRecord& record, const jrd_req* request,
Writer& writer, int stat_id)
{
fb_assert(request);
DumpRecord record(rel_mon_statements);
record.reset(rel_mon_statements);
// request id
record.storeInteger(f_mon_stmt_id, request->req_id);
@ -1124,12 +1132,13 @@ void DatabaseSnapshot::putRequest(const jrd_req* request, Writer& writer, int st
// statistics
record.storeGlobalId(f_mon_stmt_stat_id, getGlobalId(stat_id));
writer.putRecord(record);
putStatistics(request->req_stats, writer, stat_id, stat_statement);
putMemoryUsage(request->req_memory_stats, writer, stat_id, stat_statement);
putStatistics(record, request->req_stats, writer, stat_id, stat_statement);
putMemoryUsage(record, request->req_memory_stats, writer, stat_id, stat_statement);
}
void DatabaseSnapshot::putCall(const jrd_req* request, Writer& writer, int stat_id)
void DatabaseSnapshot::putCall(DumpRecord& record, const jrd_req* request,
Writer& writer, int stat_id)
{
fb_assert(request);
@ -1140,7 +1149,7 @@ void DatabaseSnapshot::putCall(const jrd_req* request, Writer& writer, int stat_
}
fb_assert(initialRequest);
DumpRecord record(rel_mon_calls);
record.reset(rel_mon_calls);
// call id
record.storeInteger(f_mon_call_id, request->req_id);
@ -1187,19 +1196,18 @@ void DatabaseSnapshot::putCall(const jrd_req* request, Writer& writer, int stat_
// statistics
record.storeGlobalId(f_mon_call_stat_id, getGlobalId(stat_id));
writer.putRecord(record);
putStatistics(request->req_stats, writer, stat_id, stat_call);
putMemoryUsage(request->req_memory_stats, writer, stat_id, stat_call);
putStatistics(record, request->req_stats, writer, stat_id, stat_call);
putMemoryUsage(record, request->req_memory_stats, writer, stat_id, stat_call);
}
void DatabaseSnapshot::putStatistics(const RuntimeStatistics& statistics,
Writer& writer,
int stat_id, int stat_group)
void DatabaseSnapshot::putStatistics(DumpRecord& record, const RuntimeStatistics& statistics,
Writer& writer, int stat_id, int stat_group)
{
// statistics id
const SINT64 id = getGlobalId(stat_id);
// physical I/O statistics
DumpRecord record(rel_mon_io_stats);
record.reset(rel_mon_io_stats);
record.storeGlobalId(f_mon_io_stat_id, id);
record.storeInteger(f_mon_io_stat_group, stat_group);
record.storeInteger(f_mon_io_page_reads, statistics.getValue(RuntimeStatistics::PAGE_READS));
@ -1223,15 +1231,14 @@ void DatabaseSnapshot::putStatistics(const RuntimeStatistics& statistics,
writer.putRecord(record);
}
void DatabaseSnapshot::putContextVars(const StringMap& variables,
Writer& writer,
int object_id, bool is_attachment)
void DatabaseSnapshot::putContextVars(DumpRecord& record, const StringMap& variables,
Writer& writer, int object_id, bool is_attachment)
{
StringMap::ConstAccessor accessor(&variables);
for (bool found = accessor.getFirst(); found; found = accessor.getNext())
{
DumpRecord record(rel_mon_ctx_vars);
record.reset(rel_mon_ctx_vars);
if (is_attachment)
record.storeInteger(f_mon_ctx_var_att_id, object_id);
@ -1245,16 +1252,14 @@ void DatabaseSnapshot::putContextVars(const StringMap& variables,
}
}
void DatabaseSnapshot::putMemoryUsage(const MemoryStats& stats,
Writer& writer,
int stat_id,
int stat_group)
void DatabaseSnapshot::putMemoryUsage(DumpRecord& record, const MemoryStats& stats,
Writer& writer, int stat_id, int stat_group)
{
// statistics id
const SINT64 id = getGlobalId(stat_id);
// memory usage
DumpRecord record(rel_mon_mem_usage);
record.reset(rel_mon_mem_usage);
record.storeGlobalId(f_mon_mem_stat_id, id);
record.storeInteger(f_mon_mem_stat_group, stat_group);
record.storeInteger(f_mon_mem_cur_used, stats.getCurrentUsage());

76
src/jrd/DatabaseSnapshot.h
View File

@ -63,27 +63,27 @@ public:
class DumpRecord
{
public:
DumpRecord() : offset(0), sizeLimit(0)
explicit DumpRecord(MemoryPool& pool)
: buffer(pool), offset(0)
{}
explicit DumpRecord(int rel_id)
DumpRecord(MemoryPool& pool, int rel_id)
: buffer(pool), offset(1)
{
reset(rel_id);
buffer.add(rel_id);
}
void reset(int rel_id)
{
offset = 0;
sizeLimit = sizeof(buffer);
fb_assert(rel_id > 0 && rel_id <= int(MAX_UCHAR));
buffer[offset++] = (UCHAR) rel_id;
offset = 1;
buffer.clear();
buffer.add(rel_id);
}
void assign(USHORT length, const UCHAR* ptr)
void assign(ULONG length, const UCHAR* ptr)
{
offset = 0;
sizeLimit = length;
memcpy(buffer, ptr, length);
buffer.assign(ptr, length);
}
ULONG getLength() const
@ -93,7 +93,7 @@ public:
const UCHAR* getData() const
{
return buffer;
return buffer.begin();
}
void storeGlobalId(int field_id, SINT64 value)
@ -109,34 +109,26 @@ public:
void storeTimestamp(int field_id, const Firebird::TimeStamp& value)
{
if (!value.isEmpty())
{
storeField(field_id, VALUE_TIMESTAMP, sizeof(ISC_TIMESTAMP), &value.value());
}
}
void storeString(int field_id, const Firebird::string& value)
{
if (value.length())
{
storeField(field_id, VALUE_STRING, value.length(), value.c_str());
}
}
void storeString(int field_id, const Firebird::PathName& value)
{
if (value.length())
{
storeField(field_id, VALUE_STRING, value.length(), value.c_str());
}
}
void storeString(int field_id, const Firebird::MetaName& value)
{
if (value.length())
{
storeField(field_id, VALUE_STRING, value.length(), value.c_str());
}
}
int getRelationId()
{
@ -148,14 +140,14 @@ public:
{
fb_assert(offset);
if (offset < sizeLimit)
if (offset < buffer.getCount())
{
field.id = (USHORT) buffer[offset++];
field.type = (ValueType) buffer[offset++];
fb_assert(field.type >= VALUE_GLOBAL_ID && field.type <= VALUE_STRING);
memcpy(&field.length, buffer + offset, sizeof(USHORT));
memcpy(&field.length, &buffer[offset], sizeof(USHORT));
offset += sizeof(USHORT);
field.data = buffer + offset;
field.data = &buffer[offset];
offset += field.length;
return true;
}
@ -167,14 +159,9 @@ public:
void storeField(int field_id, ValueType type, size_t length, const void* value)
{
const size_t delta = sizeof(UCHAR) + sizeof(UCHAR) + sizeof(USHORT) + length;
buffer.resize(offset + delta);
if (offset + delta > sizeLimit)
{
fb_assert(false);
return;
}
UCHAR* ptr = buffer + offset;
UCHAR* ptr = buffer.begin() + offset;
fb_assert(field_id <= int(MAX_UCHAR));
*ptr++ = (UCHAR) field_id;
*ptr++ = (UCHAR) type;
@ -185,9 +172,8 @@ public:
offset += (ULONG) delta;
}
UCHAR buffer[MAX_RECORD_SIZE];
Firebird::HalfStaticArray<UCHAR, 1024> buffer;
ULONG offset;
ULONG sizeLimit;
};
void putField(thread_db*, Record*, const DumpField&, int);
@ -306,8 +292,8 @@ private:
void putRecord(const DumpRecord& record)
{
const USHORT length = (USHORT) record.getLength();
dump->write(offset, sizeof(USHORT), &length);
const ULONG length = record.getLength();
dump->write(offset, sizeof(ULONG), &length);
dump->write(offset, length, record.getData());
}
@ -327,9 +313,9 @@ private:
{
if (offset < sizeLimit)
{
USHORT length;
memcpy(&length, buffer + offset, sizeof(USHORT));
offset += sizeof(USHORT);
ULONG length;
memcpy(&length, buffer + offset, sizeof(ULONG));
offset += sizeof(ULONG);
record.assign(length, buffer + offset);
offset += length;
return true;
@ -360,18 +346,18 @@ private:
RecordBuffer* allocBuffer(thread_db*, MemoryPool&, int);
static void dumpData(thread_db*);
static void dumpAttachment(const Attachment*, Writer&);
static void dumpAttachment(DumpRecord&, const Attachment*, Writer&);
static SINT64 getGlobalId(int);
static void putDatabase(const Database*, Writer&, int);
static bool putAttachment(const Attachment*, Writer&, int);
static void putTransaction(const jrd_tra*, Writer&, int);
static void putRequest(const jrd_req*, Writer&, int);
static void putCall(const jrd_req*, Writer&, int);
static void putStatistics(const RuntimeStatistics&, Writer&, int, int);
static void putContextVars(const Firebird::StringMap&, Writer&, int, bool);
static void putMemoryUsage(const Firebird::MemoryStats&, Writer&, int, int);
static void putDatabase(DumpRecord&, const Database*, Writer&, int);
static bool putAttachment(DumpRecord&, const Attachment*, Writer&, int);
static void putTransaction(DumpRecord&, const jrd_tra*, Writer&, int);
static void putRequest(DumpRecord&, const jrd_req*, Writer&, int);
static void putCall(DumpRecord&, const jrd_req*, Writer&, int);
static void putStatistics(DumpRecord&, const RuntimeStatistics&, Writer&, int, int);
static void putContextVars(DumpRecord&, const Firebird::StringMap&, Writer&, int, bool);
static void putMemoryUsage(DumpRecord&, const Firebird::MemoryStats&, Writer&, int, int);
Firebird::Array<RelationData> snapshot;
};