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php-src/ext/oci8/php_oci8_int.h
Christopher Jones 5e8e34bac8 Fixed bug #49560 (oci8: using LOBs causes slow PHP shutdown) 
- Improved descriptor refcounting to remove unneeded items sooner
 - Replaced n^2 list traversal during descriptor list destruction
2010-01-06 18:58:16 +00:00

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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2010 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Stig Sæther Bakken <ssb@php.net> |
| Thies C. Arntzen <thies@thieso.net> |
| |
| Collection support by Andy Sautins <asautins@veripost.net> |
| Temporary LOB support by David Benson <dbenson@mancala.com> |
| ZTS per process OCIPLogon by Harald Radi <harald.radi@nme.at> |
| |
| Redesigned by: Antony Dovgal <antony@zend.com> |
| Andi Gutmans <andi@zend.com> |
| Wez Furlong <wez@omniti.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#if HAVE_OCI8
# ifndef PHP_OCI8_INT_H
# define PHP_OCI8_INT_H
/* misc defines {{{ */
# if (defined(__osf__) && defined(__alpha))
# ifndef A_OSF
# define A_OSF
# endif
# ifndef OSF1
# define OSF1
# endif
# ifndef _INTRINSICS
# define _INTRINSICS
# endif
# endif /* osf alpha */
#if defined(min)
#undef min
#endif
#if defined(max)
#undef max
#endif
/* }}} */
#include "ext/standard/php_string.h"
#include <oci.h>
extern int le_connection;
extern int le_pconnection;
extern int le_statement;
extern int le_descriptor;
extern int le_collection;
extern int le_server;
extern int le_session;
extern zend_class_entry *oci_lob_class_entry_ptr;
extern zend_class_entry *oci_coll_class_entry_ptr;
/* constants {{{ */
#define PHP_OCI_SEEK_SET 0
#define PHP_OCI_SEEK_CUR 1
#define PHP_OCI_SEEK_END 2
#define PHP_OCI_MAX_NAME_LEN 64
#define PHP_OCI_MAX_DATA_SIZE INT_MAX
#define PHP_OCI_PIECE_SIZE ((64*1024)-1)
#define PHP_OCI_LOB_BUFFER_SIZE 1048576l /* 1Mb seems to be the most reasonable buffer size for LOB reading */
#define PHP_OCI_ASSOC (1<<0)
#define PHP_OCI_NUM (1<<1)
#define PHP_OCI_BOTH (PHP_OCI_ASSOC|PHP_OCI_NUM)
#define PHP_OCI_RETURN_NULLS (1<<2)
#define PHP_OCI_RETURN_LOBS (1<<3)
#define PHP_OCI_FETCHSTATEMENT_BY_COLUMN (1<<4)
#define PHP_OCI_FETCHSTATEMENT_BY_ROW (1<<5)
#define PHP_OCI_FETCHSTATEMENT_BY (PHP_OCI_FETCHSTATEMENT_BY_COLUMN | PHP_OCI_FETCHSTATEMENT_BY_ROW)
#define PHP_OCI_LOB_BUFFER_DISABLED 0
#define PHP_OCI_LOB_BUFFER_ENABLED 1
#define PHP_OCI_LOB_BUFFER_USED 2
/* The mode parameter for oci_connect() is overloaded and accepts both
* privilege and external authentication flags OR'd together.
* PHP_OCI_CRED_EXT must be distinct from the OCI_xxx privilege
* values.
*/
#define PHP_OCI_CRED_EXT (1<<31)
#if ((PHP_OCI_CRED_EXT == OCI_DEFAULT) || (PHP_OCI_CRED_EXT & (OCI_SYSOPER | OCI_SYSDBA)))
#error Invalid value for PHP_OCI_CRED_EXT
#endif
/*
* Name passed to Oracle for tracing. Note some DB views only show
* the first nine characters of the driver name.
*/
#define PHP_OCI8_DRIVER_NAME "PHP OCI8 " PHP_OCI8_VERSION
/* }}} */
typedef struct { /* php_oci_spool {{{ */
OCIEnv *env; /*env of this session pool */
OCIError *err; /* pool's error handle */
OCISPool *poolh; /* pool handle */
void *poolname; /* session pool name */
unsigned int poolname_len; /* length of session pool name */
char *spool_hash_key; /* Hash key for session pool in plist */
} php_oci_spool; /* }}} */
typedef struct { /* php_oci_connection {{{ */
OCIEnv *env; /* private env handle */
ub2 charset; /* charset ID */
OCIServer *server; /* private server handle */
OCISvcCtx *svc; /* private service context handle */
OCISession *session; /* private session handle */
OCIAuthInfo *authinfo; /* Cached authinfo handle for OCISessionGet */
OCIError *err; /* private error handle */
php_oci_spool *private_spool; /* private session pool (for persistent) */
sword errcode; /* last errcode */
HashTable *descriptors; /* descriptors hash, used to flush all the LOBs using this connection on commit */
ulong descriptor_count; /* used to index the descriptors hash table. Not an accurate count */
unsigned is_open:1; /* hels to determine if the connection is dead or not */
unsigned is_attached:1; /* hels to determine if we should detach from the server when closing/freeing the connection */
unsigned is_persistent:1; /* self-descriptive */
unsigned used_this_request:1; /* helps to determine if we should reset connection's next ping time and check its timeout */
unsigned needs_commit:1; /* helps to determine if we should rollback this connection on close/shutdown */
unsigned passwd_changed:1; /* helps determine if a persistent connection hash should be invalidated after a password change */
unsigned is_stub:1; /* flag to keep track whether the connection structure has a real OCI connection associated */
unsigned using_spool:1; /* Is this connection from session pool? */
int rsrc_id; /* resource ID */
time_t idle_expiry; /* time when the connection will be considered as expired */
time_t *next_pingp; /* (pointer to) time of the next ping */
char *hash_key; /* hashed details of the connection */
} php_oci_connection; /* }}} */
typedef struct { /* php_oci_descriptor {{{ */
int id;
ulong index; /* descriptors hash table index */
php_oci_connection *connection; /* parent connection handle */
dvoid *descriptor; /* OCI descriptor handle */
ub4 type; /* descriptor type (FILE/LOB) */
int lob_current_position; /* LOB internal pointer */
int lob_size; /* cached LOB size. -1 = Lob wasn't initialized yet */
int buffering; /* cached buffering flag. 0 - off, 1 - on, 2 - on and buffer was used */
ub4 chunk_size; /* chunk size of the LOB. 0 - unknown */
ub1 charset_form; /* charset form, required for NCLOBs */
ub2 charset_id; /* charset ID */
unsigned is_open:1; /* helps to determine if lob is open or not */
} php_oci_descriptor; /* }}} */
typedef struct { /* php_oci_lob_ctx {{{ */
char **lob_data; /* address of pointer to LOB data */
ub4 *lob_len; /* address of LOB length variable (bytes) */
ub4 alloc_len;
} php_oci_lob_ctx; /* }}} */
typedef struct { /* php_oci_collection {{{ */
int id;
php_oci_connection *connection; /* parent connection handle */
OCIType *tdo; /* collection's type handle */
OCITypeCode coll_typecode; /* collection's typecode handle */
OCIRef *elem_ref; /* element's reference handle */
OCIType *element_type; /* element's type handle */
OCITypeCode element_typecode; /* element's typecode handle */
OCIColl *collection; /* collection handle */
} php_oci_collection; /* }}} */
typedef struct { /* php_oci_define {{{ */
zval *zval; /* zval used in define */
text *name; /* placeholder's name */
ub4 name_len; /* placeholder's name length */
ub4 type; /* define type */
} php_oci_define; /* }}} */
typedef struct { /* php_oci_statement {{{ */
int id;
int parent_stmtid; /* parent statement id */
php_oci_connection *connection; /* parent connection handle */
sword errcode; /* last errcode*/
OCIError *err; /* private error handle */
OCIStmt *stmt; /* statement handle */
char *last_query; /* last query issued. also used to determine if this is a statement or a refcursor recieved from Oracle */
long last_query_len; /* last query length */
HashTable *columns; /* hash containing all the result columns */
HashTable *binds; /* binds hash */
HashTable *defines; /* defines hash */
int ncolumns; /* number of columns in the result */
unsigned executed:1; /* statement executed flag */
unsigned has_data:1; /* statement has more data flag */
unsigned has_descr:1; /* statement has at least one descriptor or cursor column */
ub2 stmttype; /* statement type */
} php_oci_statement; /* }}} */
typedef struct { /* php_oci_bind {{{ */
OCIBind *bind; /* bind handle */
zval *zval; /* value */
dvoid *descriptor; /* used for binding of LOBS etc */
OCIStmt *statement; /* used for binding REFCURSORs */
php_oci_statement *parent_statement; /* pointer to the parent statement */
ub2 type; /* bind type */
struct {
void *elements;
sb2 *indicators;
ub2 *element_lengths;
ub4 current_length;
ub4 old_length;
ub4 max_length;
long type;
} array;
sb2 indicator; /* -1 means NULL */
ub2 retcode;
ub4 dummy_len; /* a dummy var to store alenpp value in bind OUT callback */
} php_oci_bind; /* }}} */
typedef struct { /* php_oci_out_column {{{ */
php_oci_statement *statement; /* statement handle. used when fetching REFCURSORS */
php_oci_statement *nested_statement; /* statement handle. used when fetching REFCURSORS */
OCIDefine *oci_define; /* define handle */
char *name; /* column name */
ub4 name_len; /* column name length */
ub2 data_type; /* column data type */
ub2 data_size; /* data size */
ub4 storage_size4; /* size used when allocating buffers */
sb2 indicator;
ub2 retcode; /* code returned when fetching this particular column */
ub2 retlen;
ub4 retlen4;
ub2 is_descr; /* column contains a descriptor */
ub2 is_cursor; /* column contains a cursor */
int stmtid; /* statement id for cursors */
int descid; /* descriptor id for descriptors */
void *data;
php_oci_define *define; /* define handle */
int piecewise; /* column is fetched piece-by-piece */
ub4 cb_retlen;
sb1 scale; /* column scale */
sb2 precision; /* column precision */
ub1 charset_form; /* charset form, required for NCLOBs */
ub2 charset_id; /* charset ID */
} php_oci_out_column; /* }}} */
/* {{{ macros */
#define PHP_OCI_CALL(func, params) \
do { \
if (OCI_G(debug_mode)) { \
php_printf ("OCI8 DEBUG: " #func " at (%s:%d) \n", __FILE__, __LINE__); \
} \
OCI_G(in_call) = 1; \
func params; \
OCI_G(in_call) = 0; \
} while (0)
#define PHP_OCI_CALL_RETURN(__retval, func, params) \
do { \
if (OCI_G(debug_mode)) { \
php_printf ("OCI8 DEBUG: " #func " at (%s:%d) \n", __FILE__, __LINE__); \
} \
OCI_G(in_call) = 1; \
__retval = func params; \
OCI_G(in_call) = 0; \
} while (0)
/* Check for errors that indicate the connection to the DB is no
* longer valid. If it isn't, then the PHP connection is marked to be
* reopened by the next PHP OCI8 connect command. This is most useful
* for persistent connections. The error number list is not
* exclusive. The error number comparisons and the
* OCI_ATTR_SERVER_STATUS check are done for maximum cross-version
* compatibility. In the far future, only the attribute check will be
* needed.
*/
#define PHP_OCI_HANDLE_ERROR(connection, errcode) \
do { \
switch (errcode) { \
case 1013: \
zend_bailout(); \
break; \
case 22: \
case 378: \
case 602: \
case 603: \
case 604: \
case 609: \
case 1012: \
case 1033: \
case 1041: \
case 1043: \
case 1089: \
case 1090: \
case 1092: \
case 3113: \
case 3114: \
case 3122: \
case 3135: \
case 12153: \
case 27146: \
case 28511: \
(connection)->is_open = 0; \
break; \
default: \
{ \
ub4 serverStatus = OCI_SERVER_NORMAL; \
PHP_OCI_CALL(OCIAttrGet, ((dvoid *)(connection)->server, OCI_HTYPE_SERVER, (dvoid *)&serverStatus, \
(ub4 *)0, OCI_ATTR_SERVER_STATUS, (connection)->err)); \
if (serverStatus != OCI_SERVER_NORMAL) { \
(connection)->is_open = 0; \
} \
} \
break; \
} \
} while (0)
#define PHP_OCI_REGISTER_RESOURCE(resource, le_resource) \
do { \
resource->id = ZEND_REGISTER_RESOURCE(NULL, resource, le_resource); \
} while (0)
#define PHP_OCI_ZVAL_TO_CONNECTION(zval, connection) \
ZEND_FETCH_RESOURCE2(connection, php_oci_connection *, &zval, -1, "oci8 connection", le_connection, le_pconnection)
#define PHP_OCI_ZVAL_TO_STATEMENT(zval, statement) \
ZEND_FETCH_RESOURCE(statement, php_oci_statement *, &zval, -1, "oci8 statement", le_statement)
#define PHP_OCI_ZVAL_TO_DESCRIPTOR(zval, descriptor) \
ZEND_FETCH_RESOURCE(descriptor, php_oci_descriptor *, &zval, -1, "oci8 descriptor", le_descriptor)
#define PHP_OCI_ZVAL_TO_COLLECTION(zval, collection) \
ZEND_FETCH_RESOURCE(collection, php_oci_collection *, &zval, -1, "oci8 collection", le_collection)
#define PHP_OCI_FETCH_RESOURCE_EX(zval, var, type, name, resource_type) \
do { \
var = (type) zend_fetch_resource(&zval TSRMLS_CC, -1, name, NULL, 1, resource_type); \
if (!var) { \
return 1; \
} \
} while (0)
#define PHP_OCI_ZVAL_TO_CONNECTION_EX(zval, connection) \
PHP_OCI_FETCH_RESOURCE_EX(zval, connection, php_oci_connection *, "oci8 connection", le_connection)
#define PHP_OCI_ZVAL_TO_STATEMENT_EX(zval, statement) \
PHP_OCI_FETCH_RESOURCE_EX(zval, statement, php_oci_statement *, "oci8 statement", le_statement)
#define PHP_OCI_ZVAL_TO_DESCRIPTOR_EX(zval, descriptor) \
PHP_OCI_FETCH_RESOURCE_EX(zval, descriptor, php_oci_descriptor *, "oci8 descriptor", le_descriptor)
#define PHP_OCI_ZVAL_TO_COLLECTION_EX(zval, collection) \
PHP_OCI_FETCH_RESOURCE_EX(zval, collection, php_oci_collection *, "oci8 collection", le_collection)
/* }}} */
/* PROTOS */
/* main prototypes {{{ */
void php_oci_column_hash_dtor (void *data);
void php_oci_define_hash_dtor (void *data);
void php_oci_bind_hash_dtor (void *data);
void php_oci_descriptor_flush_hash_dtor (void *data);
void php_oci_connection_descriptors_free(php_oci_connection *connection TSRMLS_DC);
sb4 php_oci_error (OCIError *, sword TSRMLS_DC);
sb4 php_oci_fetch_errmsg(OCIError *, text ** TSRMLS_DC);
int php_oci_fetch_sqltext_offset(php_oci_statement *, text **, ub2 * TSRMLS_DC);
void php_oci_do_connect (INTERNAL_FUNCTION_PARAMETERS, int , int);
php_oci_connection *php_oci_do_connect_ex(char *username, int username_len, char *password, int password_len, char *new_password, int new_password_len, char *dbname, int dbname_len, char *charset, long session_mode, int persistent, int exclusive TSRMLS_DC);
int php_oci_connection_rollback(php_oci_connection * TSRMLS_DC);
int php_oci_connection_commit(php_oci_connection * TSRMLS_DC);
int php_oci_connection_release(php_oci_connection *connection TSRMLS_DC);
int php_oci_password_change(php_oci_connection *, char *, int, char *, int, char *, int TSRMLS_DC);
int php_oci_server_get_version(php_oci_connection *, char ** TSRMLS_DC);
void php_oci_fetch_row(INTERNAL_FUNCTION_PARAMETERS, int, int);
int php_oci_column_to_zval(php_oci_out_column *, zval *, int TSRMLS_DC);
/* }}} */
/* lob related prototypes {{{ */
php_oci_descriptor * php_oci_lob_create (php_oci_connection *, long TSRMLS_DC);
int php_oci_lob_get_length (php_oci_descriptor *, ub4 * TSRMLS_DC);
int php_oci_lob_read (php_oci_descriptor *, long, long, char **, ub4 * TSRMLS_DC);
int php_oci_lob_write (php_oci_descriptor *, ub4, char *, int, ub4 * TSRMLS_DC);
int php_oci_lob_flush (php_oci_descriptor *, long TSRMLS_DC);
int php_oci_lob_set_buffering (php_oci_descriptor *, int TSRMLS_DC);
int php_oci_lob_get_buffering (php_oci_descriptor *);
int php_oci_lob_copy (php_oci_descriptor *, php_oci_descriptor *, long TSRMLS_DC);
int php_oci_lob_close (php_oci_descriptor * TSRMLS_DC);
int php_oci_temp_lob_close (php_oci_descriptor * TSRMLS_DC);
int php_oci_lob_write_tmp (php_oci_descriptor *, ub1, char *, int TSRMLS_DC);
void php_oci_lob_free(php_oci_descriptor * TSRMLS_DC);
int php_oci_lob_import(php_oci_descriptor *descriptor, char * TSRMLS_DC);
int php_oci_lob_append (php_oci_descriptor *, php_oci_descriptor * TSRMLS_DC);
int php_oci_lob_truncate (php_oci_descriptor *, long TSRMLS_DC);
int php_oci_lob_erase (php_oci_descriptor *, long, ub4, ub4 * TSRMLS_DC);
int php_oci_lob_is_equal (php_oci_descriptor *, php_oci_descriptor *, boolean * TSRMLS_DC);
#if defined(HAVE_OCI_LOB_READ2)
sb4 php_oci_lob_callback (dvoid *ctxp, CONST dvoid *bufxp, oraub8 len, ub1 piece, dvoid **changed_bufpp, oraub8 *changed_lenp);
#else
sb4 php_oci_lob_callback (dvoid *ctxp, CONST dvoid *bufxp, ub4 len, ub1 piece);
#endif
/* }}} */
/* collection related prototypes {{{ */
php_oci_collection * php_oci_collection_create(php_oci_connection *, char *, int, char *, int TSRMLS_DC);
int php_oci_collection_size(php_oci_collection *, sb4 * TSRMLS_DC);
int php_oci_collection_max(php_oci_collection *, long * TSRMLS_DC);
int php_oci_collection_trim(php_oci_collection *, long TSRMLS_DC);
int php_oci_collection_append(php_oci_collection *, char *, int TSRMLS_DC);
int php_oci_collection_element_get(php_oci_collection *, long, zval** TSRMLS_DC);
int php_oci_collection_element_set(php_oci_collection *, long, char *, int TSRMLS_DC);
int php_oci_collection_element_set_null(php_oci_collection *, long TSRMLS_DC);
int php_oci_collection_element_set_date(php_oci_collection *, long, char *, int TSRMLS_DC);
int php_oci_collection_element_set_number(php_oci_collection *, long, char *, int TSRMLS_DC);
int php_oci_collection_element_set_string(php_oci_collection *, long, char *, int TSRMLS_DC);
int php_oci_collection_assign(php_oci_collection *, php_oci_collection * TSRMLS_DC);
void php_oci_collection_close(php_oci_collection * TSRMLS_DC);
int php_oci_collection_append_null(php_oci_collection * TSRMLS_DC);
int php_oci_collection_append_date(php_oci_collection *, char *, int TSRMLS_DC);
int php_oci_collection_append_number(php_oci_collection *, char *, int TSRMLS_DC);
int php_oci_collection_append_string(php_oci_collection *, char *, int TSRMLS_DC);
/* }}} */
/* statement related prototypes {{{ */
php_oci_statement * php_oci_statement_create (php_oci_connection *, char *, int TSRMLS_DC);
int php_oci_statement_set_prefetch (php_oci_statement *, long TSRMLS_DC);
int php_oci_statement_fetch (php_oci_statement *, ub4 TSRMLS_DC);
php_oci_out_column * php_oci_statement_get_column (php_oci_statement *, long, char *, int TSRMLS_DC);
int php_oci_statement_execute (php_oci_statement *, ub4 TSRMLS_DC);
int php_oci_statement_cancel (php_oci_statement * TSRMLS_DC);
void php_oci_statement_free (php_oci_statement * TSRMLS_DC);
int php_oci_bind_pre_exec(void *data, void *result TSRMLS_DC);
int php_oci_bind_post_exec(void *data TSRMLS_DC);
int php_oci_bind_by_name(php_oci_statement *, char *, int, zval*, long, ub2 TSRMLS_DC);
sb4 php_oci_bind_in_callback(dvoid *, OCIBind *, ub4, ub4, dvoid **, ub4 *, ub1 *, dvoid **);
sb4 php_oci_bind_out_callback(dvoid *, OCIBind *, ub4, ub4, dvoid **, ub4 **, ub1 *, dvoid **, ub2 **);
php_oci_out_column *php_oci_statement_get_column_helper(INTERNAL_FUNCTION_PARAMETERS, int need_data);
int php_oci_cleanup_pre_fetch(void *data TSRMLS_DC);
int php_oci_statement_get_type(php_oci_statement *, ub2 * TSRMLS_DC);
int php_oci_statement_get_numrows(php_oci_statement *, ub4 * TSRMLS_DC);
int php_oci_bind_array_by_name(php_oci_statement *statement, char *name, int name_len, zval* var, long max_table_length, long maxlength, long type TSRMLS_DC);
php_oci_bind *php_oci_bind_array_helper_number(zval* var, long max_table_length TSRMLS_DC);
php_oci_bind *php_oci_bind_array_helper_double(zval* var, long max_table_length TSRMLS_DC);
php_oci_bind *php_oci_bind_array_helper_string(zval* var, long max_table_length, long maxlength TSRMLS_DC);
php_oci_bind *php_oci_bind_array_helper_date(zval* var, long max_table_length, php_oci_connection *connection TSRMLS_DC);
/* }}} */
ZEND_BEGIN_MODULE_GLOBALS(oci) /* {{{ */
sword errcode; /* global last error code (used when connect fails, for example) */
OCIError *err; /* global error handle */
zend_bool debug_mode; /* debug mode flag */
long max_persistent; /* maximum number of persistent connections per process */
long num_persistent; /* number of existing persistent connections */
long num_links; /* non-persistent + persistent connections */
long num_statements; /* number of statements open */
long ping_interval; /* time interval between pings */
long persistent_timeout; /* time period after which idle persistent connection is considered expired */
long statement_cache_size; /* statement cache size. used with 9i+ clients only*/
long default_prefetch; /* default prefetch setting */
zend_bool privileged_connect; /* privileged connect flag (On/Off) */
zend_bool old_oci_close_semantics; /* old_oci_close_semantics flag (to determine the way oci_close() should behave) */
int shutdown; /* in shutdown flag */
OCIEnv *env; /* global environment handle */
zend_bool in_call;
char *connection_class;
zend_bool events;
char *edition;
ZEND_END_MODULE_GLOBALS(oci) /* }}} */
#ifdef ZTS
#define OCI_G(v) TSRMG(oci_globals_id, zend_oci_globals *, v)
#else
#define OCI_G(v) (oci_globals.v)
#endif
ZEND_EXTERN_MODULE_GLOBALS(oci)
# endif /* !PHP_OCI8_INT_H */
#else /* !HAVE_OCI8 */
# define oci8_module_ptr NULL
#endif /* HAVE_OCI8 */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
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