mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-29 04:13:43 +03:00
Dropped support for protocol 2.
Dropped both the setup constant allowing conditional compiling and the code specific to V2 protocol (mostly COPY and error handling).
This commit is contained in:
Daniele Varrazzo
parent
73265e7ece
commit
a88d7ab424
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@ -2,6 +2,10 @@
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* psycopg/connection_int.c: abort connection to protocol 2 server.
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* psycopg/pqpath.c
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* psycopg/connection_int.c: dropped support for protocol 2 at compile
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time and protocol 2-specific code.
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2010-11-11 Daniele Varrazzo <daniele.varrazzo@gmail.com>
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* lib/extras.py: build the namedtuple only once per execution, not once
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@ -266,13 +266,7 @@ int
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conn_get_protocol_version(PGconn *pgconn)
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{
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int ret;
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#ifdef HAVE_PQPROTOCOL3
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ret = PQprotocolVersion(pgconn);
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#else
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ret = 2;
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#endif
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Dprintf("conn_connect: using protocol %d", ret);
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return ret;
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}
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@ -780,7 +780,7 @@ static struct PyMemberDef connectionObject_members[] = {
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"A set of typecasters to convert binary values."},
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{"protocol_version", T_INT,
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offsetof(connectionObject, protocol), RO,
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"Protocol version (2 or 3) used for this connection."},
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"Protocol version used for this connection. Currently always 3."},
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{"server_version", T_INT,
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offsetof(connectionObject, server_version), RO,
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"Server version."},
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148
psycopg/pqpath.c
148
psycopg/pqpath.c
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@ -173,11 +173,9 @@ pq_raise(connectionObject *conn, cursorObject *curs, PGresult *pgres)
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if (pgres) {
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err = PQresultErrorMessage(pgres);
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#ifdef HAVE_PQPROTOCOL3
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if (err != NULL && conn->protocol == 3) {
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if (err != NULL) {
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code = PQresultErrorField(pgres, PG_DIAG_SQLSTATE);
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}
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#endif
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}
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if (err == NULL)
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err = PQerrorMessage(conn->pgconn);
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@ -196,25 +194,6 @@ pq_raise(connectionObject *conn, cursorObject *curs, PGresult *pgres)
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exc = exception_from_sqlstate(code);
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}
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/* if exc is still NULL psycopg was not built with HAVE_PQPROTOCOL3 or the
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connection is using protocol 2: in both cases we default to comparing
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error messages */
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if (exc == NULL) {
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if (!strncmp(err, "ERROR: Cannot insert a duplicate key", 37)
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|| !strncmp(err, "ERROR: ExecAppend: Fail to add null", 36)
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|| strstr(err, "referential integrity violation"))
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exc = IntegrityError;
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else if (strstr(err, "could not serialize") ||
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strstr(err, "deadlock detected"))
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#ifdef PSYCOPG_EXTENSIONS
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exc = TransactionRollbackError;
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#else
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exc = OperationalError;
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#endif
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else
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exc = ProgrammingError;
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}
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/* try to remove the initial "ERROR: " part from the postgresql error */
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err2 = strip_severity(err);
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@ -1063,7 +1042,6 @@ _pq_fetch_tuples(cursorObject *curs)
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Py_END_ALLOW_THREADS;
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}
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#ifdef HAVE_PQPROTOCOL3
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static int
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_pq_copy_in_v3(cursorObject *curs)
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{
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@ -1155,57 +1133,7 @@ exit:
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Py_XDECREF(size);
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return (error == 0 ? 1 : -1);
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}
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#endif
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static int
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_pq_copy_in(cursorObject *curs)
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{
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/* COPY FROM implementation when protocol 3 is not available: this
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function can't fail but the backend will send an ERROR notice that will
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be catched by our notice collector */
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PyObject *o, *func = NULL;
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int ret = -1;
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if (!(func = PyObject_GetAttrString(curs->copyfile, "readline"))) {
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Dprintf("_pq_copy_in: can't get o.readline");
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goto exit;
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}
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while (1) {
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int rv;
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o = PyObject_CallFunction(func, NULL);
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if (o == NULL) goto exit;
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if (o == Py_None || PyString_GET_SIZE(o) == 0) break;
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Py_BEGIN_ALLOW_THREADS;
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rv = PQputline(curs->conn->pgconn, PyString_AS_STRING(o));
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Py_END_ALLOW_THREADS;
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Py_DECREF(o);
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if (0 != rv) goto exit;
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}
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Py_XDECREF(o);
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Py_BEGIN_ALLOW_THREADS;
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PQputline(curs->conn->pgconn, "\\.\n");
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PQendcopy(curs->conn->pgconn);
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Py_END_ALLOW_THREADS;
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/* if for some reason we're using a protocol 3 libpq to connect to a
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protocol 2 backend we still need to cycle on the result set */
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IFCLEARPGRES(curs->pgres);
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while ((curs->pgres = PQgetResult(curs->conn->pgconn)) != NULL) {
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if (PQresultStatus(curs->pgres) == PGRES_FATAL_ERROR)
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pq_raise(curs->conn, curs, NULL);
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IFCLEARPGRES(curs->pgres);
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}
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ret = 1;
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exit:
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Py_XDECREF(func);
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return ret;
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}
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#ifdef HAVE_PQPROTOCOL3
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static int
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_pq_copy_out_v3(cursorObject *curs)
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{
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@ -1258,66 +1186,6 @@ exit:
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Py_XDECREF(func);
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return ret;
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}
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#endif
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static int
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_pq_copy_out(cursorObject *curs)
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{
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PyObject *tmp = NULL, *func;
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char buffer[4096];
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int status = -1, ll = 0;
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Py_ssize_t len;
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if (!(func = PyObject_GetAttrString(curs->copyfile, "write"))) {
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Dprintf("_pq_copy_out: can't get o.write");
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goto exit;
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}
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while (1) {
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Py_BEGIN_ALLOW_THREADS;
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status = PQgetline(curs->conn->pgconn, buffer, 4096);
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Py_END_ALLOW_THREADS;
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if (status == 0) {
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if (!ll && buffer[0] == '\\' && buffer[1] == '.') break;
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len = (Py_ssize_t) strlen(buffer);
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buffer[len++] = '\n';
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ll = 0;
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}
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else if (status == 1) {
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len = 4096-1;
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ll = 1;
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}
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else {
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goto exit;
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}
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tmp = PyObject_CallFunction(func, "s#", buffer, len);
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if (tmp == NULL) {
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goto exit;
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} else {
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Py_DECREF(tmp);
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}
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}
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status = 1;
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if (PQendcopy(curs->conn->pgconn) != 0)
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status = -1;
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/* if for some reason we're using a protocol 3 libpq to connect to a
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protocol 2 backend we still need to cycle on the result set */
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IFCLEARPGRES(curs->pgres);
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while ((curs->pgres = PQgetResult(curs->conn->pgconn)) != NULL) {
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if (PQresultStatus(curs->pgres) == PGRES_FATAL_ERROR)
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pq_raise(curs->conn, curs, NULL);
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IFCLEARPGRES(curs->pgres);
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}
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exit:
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Py_XDECREF(func);
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return status;
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}
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int
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pq_fetch(cursorObject *curs)
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@ -1368,12 +1236,7 @@ pq_fetch(cursorObject *curs)
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case PGRES_COPY_OUT:
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Dprintf("pq_fetch: data from a COPY TO (no tuples)");
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#ifdef HAVE_PQPROTOCOL3
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if (curs->conn->protocol == 3)
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ex = _pq_copy_out_v3(curs);
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else
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#endif
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ex = _pq_copy_out(curs);
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ex = _pq_copy_out_v3(curs);
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curs->rowcount = -1;
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/* error caught by out glorious notice handler */
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if (PyErr_Occurred()) ex = -1;
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@ -1382,12 +1245,7 @@ pq_fetch(cursorObject *curs)
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case PGRES_COPY_IN:
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Dprintf("pq_fetch: data from a COPY FROM (no tuples)");
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#ifdef HAVE_PQPROTOCOL3
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if (curs->conn->protocol == 3)
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ex = _pq_copy_in_v3(curs);
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else
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#endif
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ex = _pq_copy_in(curs);
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ex = _pq_copy_in_v3(curs);
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curs->rowcount = -1;
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/* error caught by out glorious notice handler */
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if (PyErr_Occurred()) ex = -1;
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@ -1,10 +1,9 @@
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[build_ext]
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define=PSYCOPG_EXTENSIONS,PSYCOPG_NEW_BOOLEAN,HAVE_PQFREEMEM,HAVE_PQPROTOCOL3
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define=PSYCOPG_EXTENSIONS,PSYCOPG_NEW_BOOLEAN,HAVE_PQFREEMEM
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# PSYCOPG_EXTENSIONS enables extensions to PEP-249 (you really want this)
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# PSYCOPG_DISPLAY_SIZE enable display size calculation (a little slower)
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# HAVE_PQFREEMEM should be defined on PostgreSQL >= 7.4
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# HAVE_PQPROTOCOL3 should be defined on PostgreSQL >= 7.4
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# PSYCOPG_DEBUG can be added to enable verbose debug information
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# PSYCOPG_NEW_BOOLEAN to format booleans as true/false vs 't'/'f'
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3
setup.py
3
setup.py
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@ -393,11 +393,10 @@ else:
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sys.exit(1)
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# generate a nice version string to avoid confusion when users report bugs
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version_flags.append('pq3') # no more a choice
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for have in parser.get('build_ext', 'define').split(','):
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if have == 'PSYCOPG_EXTENSIONS':
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version_flags.append('ext')
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elif have == 'HAVE_PQPROTOCOL3':
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version_flags.append('pq3')
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if version_flags:
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PSYCOPG_VERSION_EX = PSYCOPG_VERSION + " (%s)" % ' '.join(version_flags)
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else:
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