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Code Issues

Fixed bug CORE-3533 : Firebird memory not released (Using superserver)

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This commit is contained in:
hvlad 2011-07-12 09:06:00 +00:00
parent 32d97c593a
commit 86adbc35de
2 changed files with 23 additions and 9 deletions
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16
src/dsql/dsql.cpp
View File

@ -159,6 +159,11 @@ IMPLEMENT_TRACE_ROUTINE(dsql_trace, "DSQL")
dsql_dbb::~dsql_dbb() dsql_dbb::~dsql_dbb()
{ {
thread_db* tdbb = JRD_get_thread_data();
while (!dbb_requests.isEmpty())
release_request(tdbb, dbb_requests[0], true);
HSHD_finish(this); HSHD_finish(this);
} }
@ -184,8 +189,9 @@ dsql_req* DSQL_allocate_statement(thread_db* tdbb, Attachment* attachment)
// allocate the request block // allocate the request block
MemoryPool& pool = *tdbb->getDefaultPool(); MemoryPool& pool = *tdbb->getDefaultPool();
dsql_req* const request = FB_NEW(pool) dsql_req(pool); dsql_req* const request = FB_NEW(pool) CompiledStatement(pool);
request->req_dbb = database; request->req_dbb = database;
database->dbb_requests.add(request);
return request; return request;
} }
@ -2581,6 +2587,7 @@ static dsql_req* prepare(thread_db* tdbb, dsql_dbb* database, jrd_tra* transacti
MemoryPool& pool = *tdbb->getDefaultPool(); MemoryPool& pool = *tdbb->getDefaultPool();
CompiledStatement* statement = FB_NEW(pool) CompiledStatement(pool); CompiledStatement* statement = FB_NEW(pool) CompiledStatement(pool);
statement->req_dbb = database; statement->req_dbb = database;
database->dbb_requests.add(statement);
statement->req_transaction = transaction; statement->req_transaction = transaction;
statement->req_client_dialect = client_dialect; statement->req_client_dialect = client_dialect;
statement->req_traced = true; statement->req_traced = true;
@ -2915,7 +2922,12 @@ static void release_request(thread_db* tdbb, dsql_req* request, bool drop)
if (drop) if (drop)
{ {
request->req_dbb->deletePool(&request->req_pool); dsql_dbb* dbb = request->req_dbb;
size_t pos;
if (dbb->dbb_requests.find(request, pos)) {
dbb->dbb_requests.remove(pos);
}
dbb->deletePool(&request->req_pool);
} }
} }

16
src/dsql/dsql.h
View File

@ -136,6 +136,7 @@ public:
MemoryPool& dbb_pool; // The current pool for the dbb MemoryPool& dbb_pool; // The current pool for the dbb
Database* dbb_database; Database* dbb_database;
Attachment* dbb_attachment; Attachment* dbb_attachment;
Firebird::SortedArray<dsql_req*> dbb_requests;
dsql_str* dbb_dfl_charset; dsql_str* dbb_dfl_charset;
#ifdef SCROLLABLE_CURSORS #ifdef SCROLLABLE_CURSORS
USHORT dbb_base_level; // indicates the version of the engine code itself USHORT dbb_base_level; // indicates the version of the engine code itself
@ -149,7 +150,9 @@ public:
Firebird::Mutex dbb_cache_mutex; // mutex protecting the DSQL metadata cache Firebird::Mutex dbb_cache_mutex; // mutex protecting the DSQL metadata cache
explicit dsql_dbb(MemoryPool& p) : explicit dsql_dbb(MemoryPool& p) :
dbb_pool(p), dbb_charsets_by_id(p, 16) dbb_pool(p),
dbb_requests(p),
dbb_charsets_by_id(p, 16)
{} {}
~dsql_dbb(); ~dsql_dbb();
@ -382,12 +385,6 @@ enum REQ_TYPE
class dsql_req : public pool_alloc<dsql_type_req> class dsql_req : public pool_alloc<dsql_type_req>
{ {
public: public:
explicit dsql_req(MemoryPool& p)
: req_pool(p),
req_blr_data(p)
{
}
dsql_req* req_parent; // Source request, if cursor update dsql_req* req_parent; // Source request, if cursor update
dsql_req* req_sibling; // Next sibling request, if cursor update dsql_req* req_sibling; // Next sibling request, if cursor update
dsql_req* req_offspring; // Cursor update requests dsql_req* req_offspring; // Cursor update requests
@ -427,6 +424,11 @@ public:
bool req_traced; // request is traced via TraceAPI bool req_traced; // request is traced via TraceAPI
protected: protected:
dsql_req(MemoryPool& p)
: req_pool(p),
req_blr_data(p)
{
}
// Request should never be destroyed using delete. // Request should never be destroyed using delete.
// It dies together with it's pool in release_request(). // It dies together with it's pool in release_request().
~dsql_req() ~dsql_req()