diff options
Diffstat (limited to 'sql/connection.cc')
| -rw-r--r-- | sql/connection.cc | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/sql/connection.cc b/sql/connection.cc index 20f0f07..61aebbe 100644 --- a/sql/connection.cc +++ b/sql/connection.cc @@ -19,6 +19,8 @@ #include "base/strings/stringprintf.h" #include "base/strings/utf_string_conversions.h" #include "base/synchronization/lock.h" +#include "base/trace_event/memory_dump_manager.h" +#include "base/trace_event/process_memory_dump.h" #include "sql/statement.h" #include "third_party/sqlite/sqlite3.h" @@ -217,6 +219,44 @@ bool Connection::ShouldIgnoreSqliteError(int error) { return current_ignorer_cb_->Run(error); } +bool Connection::OnMemoryDump(const base::trace_event::MemoryDumpArgs& args, + base::trace_event::ProcessMemoryDump* pmd) { + if (args.level_of_detail == + base::trace_event::MemoryDumpLevelOfDetail::LIGHT || + !db_) { + return true; + } + + // The high water mark is not tracked for the following usages. + int cache_size, dummy_int; + sqlite3_db_status(db_, SQLITE_DBSTATUS_CACHE_USED, &cache_size, &dummy_int, + 0 /* resetFlag */); + int schema_size; + sqlite3_db_status(db_, SQLITE_DBSTATUS_SCHEMA_USED, &schema_size, &dummy_int, + 0 /* resetFlag */); + int statement_size; + sqlite3_db_status(db_, SQLITE_DBSTATUS_STMT_USED, &statement_size, &dummy_int, + 0 /* resetFlag */); + + std::string name = base::StringPrintf( + "sqlite/%s_connection/%p", + histogram_tag_.empty() ? "Unknown" : histogram_tag_.c_str(), this); + base::trace_event::MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(name); + dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize, + base::trace_event::MemoryAllocatorDump::kUnitsBytes, + cache_size + schema_size + statement_size); + dump->AddScalar("cache_size", + base::trace_event::MemoryAllocatorDump::kUnitsBytes, + cache_size); + dump->AddScalar("schema_size", + base::trace_event::MemoryAllocatorDump::kUnitsBytes, + schema_size); + dump->AddScalar("statement_size", + base::trace_event::MemoryAllocatorDump::kUnitsBytes, + statement_size); + return true; +} + // static void Connection::SetErrorIgnorer(Connection::ErrorIgnorerCallback* cb) { CHECK(current_ignorer_cb_ == NULL); @@ -291,9 +331,13 @@ Connection::Connection() update_time_histogram_(NULL), query_time_histogram_(NULL), clock_(new TimeSource()) { + base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider( + this); } Connection::~Connection() { + base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider( + this); Close(); } |