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Applied patch by Itagaki Takahiro to fix incorrect status calculation in 

ecpglib. Instead of parsing the statement just as ask the database server. This
patch removes the whole client side track keeping of the current transaction
status.
This commit is contained in:
Michael Meskes 2010-10-14 17:55:07 +02:00
parent 1a996d6c29
commit 816b008eaf
4 changed files with 4 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/interfaces/ecpg/ecpglib/connect.c
View File

@ -167,25 +167,23 @@ ECPGsetcommit(int lineno, const char *mode, const char *connection_name)
if (con->autocommit == true && strncmp(mode, "off", strlen("off")) == 0)
{
if (con->committed)
if (PQtransactionStatus(con->connection) == PQTRANS_IDLE)
{
results = PQexec(con->connection, "begin transaction");
if (!ecpg_check_PQresult(results, lineno, con->connection, ECPG_COMPAT_PGSQL))
return false;
PQclear(results);
con->committed = false;
}
con->autocommit = false;
}
else if (con->autocommit == false && strncmp(mode, "on", strlen("on")) == 0)
{
if (!con->committed)
if (PQtransactionStatus(con->connection) != PQTRANS_IDLE)
{
results = PQexec(con->connection, "commit");
if (!ecpg_check_PQresult(results, lineno, con->connection, ECPG_COMPAT_PGSQL))
return false;
PQclear(results);
con->committed = true;
}
con->autocommit = true;
}
@ -540,7 +538,6 @@ ECPGconnect(int lineno, int c, const char *name, const char *user, const char *p
pthread_mutex_unlock(&connections_mutex);
#endif
this->committed = true;
this->autocommit = autocommit;
PQsetNoticeReceiver(this->connection, &ECPGnoticeReceiver, (void *) this);

3
src/interfaces/ecpg/ecpglib/execute.c
View File

@ -1427,7 +1427,7 @@ ecpg_execute(struct statement * stmt)
/* The request has been build. */
if (stmt->connection->committed && !stmt->connection->autocommit)
if (PQtransactionStatus(stmt->connection->connection) == PQTRANS_IDLE && !stmt->connection->autocommit)
{
results = PQexec(stmt->connection->connection, "begin transaction");
if (!ecpg_check_PQresult(results, stmt->lineno, stmt->connection->connection, stmt->compat))
@ -1436,7 +1436,6 @@ ecpg_execute(struct statement * stmt)
return false;
}
PQclear(results);
stmt->connection->committed = false;
}
ecpg_log("ecpg_execute on line %d: query: %s; with %d parameter(s) on connection %s\n", stmt->lineno, stmt->command, nParams, stmt->connection->name);

1
src/interfaces/ecpg/ecpglib/extern.h
View File

@ -76,7 +76,6 @@ struct connection
{
char *name;
PGconn *connection;
bool committed;
int autocommit;
struct ECPGtype_information_cache *cache_head;
struct prepared_statement *prep_stmts;

7
src/interfaces/ecpg/ecpglib/misc.c
View File

@ -206,7 +206,7 @@ ECPGtrans(int lineno, const char *connection_name, const char *transaction)
* developers have to take care themselves. However, if the command is
* a begin statement, we just execute it once.
*/
if (con->committed && !con->autocommit && strncmp(transaction, "begin", 5) != 0 && strncmp(transaction, "start", 5) != 0)
if (PQtransactionStatus(con->connection) == PQTRANS_IDLE && !con->autocommit && strncmp(transaction, "begin", 5) != 0 && strncmp(transaction, "start", 5) != 0)
{
res = PQexec(con->connection, "begin transaction");
if (!ecpg_check_PQresult(res, lineno, con->connection, ECPG_COMPAT_PGSQL))
@ -218,11 +218,6 @@ ECPGtrans(int lineno, const char *connection_name, const char *transaction)
if (!ecpg_check_PQresult(res, lineno, con->connection, ECPG_COMPAT_PGSQL))
return FALSE;
PQclear(res);
if (strncmp(transaction, "commit", 6) == 0 || strncmp(transaction, "rollback", 8) == 0)
con->committed = true;
else
con->committed = false;
}
return true;