scottmac Sat Jan 24 12:16:59 2009 UTC
Modified files:
/php-src/ext/sqlite3 sqlite3.c
Log:
Add blobOpen method for reading SQlite3 blobs via streams.
http://cvs.php.net/viewvc.cgi/php-src/ext/sqlite3/sqlite3.c?r1=1.31&r2=1.32&diff_format=u
Index: php-src/ext/sqlite3/sqlite3.c
diff -u php-src/ext/sqlite3/sqlite3.c:1.31 php-src/ext/sqlite3/sqlite3.c:1.32
--- php-src/ext/sqlite3/sqlite3.c:1.31 Tue Jan 20 09:57:25 2009
+++ php-src/ext/sqlite3/sqlite3.c Sat Jan 24 12:16:57 2009
@@ -16,7 +16,7 @@
+----------------------------------------------------------------------+
*/
-/* $Id: sqlite3.c,v 1.31 2009/01/20 09:57:25 scottmac Exp $ */
+/* $Id: sqlite3.c,v 1.32 2009/01/24 12:16:57 scottmac Exp $ */
#ifdef HAVE_CONFIG_H
#include "config.h"
@@ -794,7 +794,7 @@
}
/* }}} */
-/* {{{ proto bool SQLite3::createFunction(string name, mixed callback [, int
argcount]))
+/* {{{ proto bool SQLite3::createFunction(string name, mixed callback [, int
argcount])
Allows registration of a PHP function as a SQLite UDF that can be called
within SQL statements. */
PHP_METHOD(sqlite3, createFunction)
{
@@ -847,7 +847,7 @@
}
/* }}} */
-/* {{{ proto bool SQLite3::createAggregate(string name, mixed step, mixed
final [, int argcount]))
+/* {{{ proto bool SQLite3::createAggregate(string name, mixed step, mixed
final [, int argcount])
Allows registration of a PHP function for use as an aggregate. */
PHP_METHOD(sqlite3, createAggregate)
{
@@ -912,6 +912,184 @@
}
/* }}} */
+typedef struct {
+ sqlite3_blob *blob;
+ size_t position;
+ size_t size;
+} php_stream_sqlite3_data;
+
+static size_t php_sqlite3_stream_write(php_stream *stream, const char *buf,
size_t count TSRMLS_DC)
+{
+ php_stream_sqlite3_data *sqlite3_stream = (php_stream_sqlite3_data *)
stream->abstract;
+
+ return 0;
+}
+
+static size_t php_sqlite3_stream_read(php_stream *stream, char *buf, size_t
count TSRMLS_DC)
+{
+ php_stream_sqlite3_data *sqlite3_stream = (php_stream_sqlite3_data *)
stream->abstract;
+
+ if (sqlite3_stream->position + count >= sqlite3_stream->size) {
+ count = sqlite3_stream->size - sqlite3_stream->position;
+ stream->eof = 1;
+ }
+ if (count) {
+ if (sqlite3_blob_read(sqlite3_stream->blob, buf, count,
sqlite3_stream->position) != SQLITE_OK) {
+ return 0;
+ }
+ sqlite3_stream->position += count;
+ }
+ return count;
+}
+
+static int php_sqlite3_stream_close(php_stream *stream, int close_handle
TSRMLS_DC)
+{
+ php_stream_sqlite3_data *sqlite3_stream = (php_stream_sqlite3_data *)
stream->abstract;
+
+ if (sqlite3_blob_close(sqlite3_stream->blob) != SQLITE_OK) {
+ /* Error occured, but it still closed */
+ }
+
+ efree(sqlite3_stream);
+
+ return 0;
+}
+
+static int php_sqlite3_stream_flush(php_stream *stream TSRMLS_DC)
+{
+ /* do nothing */
+ return 0;
+}
+
+/* {{{ */
+static int php_sqlite3_stream_seek(php_stream *stream, off_t offset, int
whence, off_t *newoffs TSRMLS_DC)
+{
+ php_stream_sqlite3_data *sqlite3_stream = (php_stream_sqlite3_data *)
stream->abstract;
+
+ switch(whence) {
+ case SEEK_CUR:
+ if (offset < 0) {
+ if (sqlite3_stream->position <
(size_t)(-offset)) {
+ sqlite3_stream->position = 0;
+ *newoffs = -1;
+ return -1;
+ } else {
+ sqlite3_stream->position =
sqlite3_stream->position + offset;
+ *newoffs = sqlite3_stream->position;
+ stream->eof = 0;
+ return 0;
+ }
+ } else {
+ if (sqlite3_stream->position + (size_t)(offset)
> sqlite3_stream->size) {
+ sqlite3_stream->position =
sqlite3_stream->size;
+ *newoffs = -1;
+ return -1;
+ } else {
+ sqlite3_stream->position =
sqlite3_stream->position + offset;
+ *newoffs = sqlite3_stream->position;
+ stream->eof = 0;
+ return 0;
+ }
+ }
+ case SEEK_SET:
+ if (sqlite3_stream->size < (size_t)(offset)) {
+ sqlite3_stream->position = sqlite3_stream->size;
+ *newoffs = -1;
+ return -1;
+ } else {
+ sqlite3_stream->position = offset;
+ *newoffs = sqlite3_stream->position;
+ stream->eof = 0;
+ return 0;
+ }
+ case SEEK_END:
+ if (offset > 0) {
+ sqlite3_stream->position = sqlite3_stream->size;
+ *newoffs = -1;
+ return -1;
+ } else if (sqlite3_stream->size < (size_t)(-offset)) {
+ sqlite3_stream->position = 0;
+ *newoffs = -1;
+ return -1;
+ } else {
+ sqlite3_stream->position = sqlite3_stream->size
+ offset;
+ *newoffs = sqlite3_stream->position;
+ stream->eof = 0;
+ return 0;
+ }
+ default:
+ *newoffs = sqlite3_stream->position;
+ return -1;
+ }
+}
+/* }}} */
+
+
+static int php_sqlite3_stream_cast(php_stream *stream, int castas, void **ret
TSRMLS_DC)
+{
+ return FAILURE;
+}
+
+static int php_sqlite3_stream_stat(php_stream *stream, php_stream_statbuf *ssb
TSRMLS_DC)
+{
+ /* TODO: fill in details based on Data: and Content-Length: headers,
and/or data
+ * from curl_easy_getinfo().
+ * For now, return -1 to indicate that it doesn't make sense to stat
this stream */
+ return -1;
+}
+
+PHPAPI php_stream_ops php_stream_sqlite3_ops = {
+ php_sqlite3_stream_write,
+ php_sqlite3_stream_read,
+ php_sqlite3_stream_close,
+ php_sqlite3_stream_flush,
+ "SQLite3",
+ php_sqlite3_stream_seek,
+ php_sqlite3_stream_cast,
+ php_sqlite3_stream_stat
+};
+
+/* {{{ proto resource SQLite3::openBlob(string table, string column, int rowid
[, string dbname])
+ Open a blob as a stream which we can read / write to. */
+PHP_METHOD(sqlite3, openBlob)
+{
+ php_sqlite3_db_object *db_obj;
+ zval *object = getThis();
+ char *table, *column, *dbname = "main";
+ int table_len, column_len, dbname_len;
+ long rowid, flags = 0;
+ sqlite3_blob *blob = NULL;
+ php_stream_sqlite3_data *sqlite3_stream;
+ php_stream *stream;
+
+ db_obj = (php_sqlite3_db_object *)zend_object_store_get_object(object
TSRMLS_CC);
+
+ SQLITE3_CHECK_INITIALIZED(db_obj->initialised, SQLite3)
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ssl|s", &table,
&table_len, &column, &column_len, &rowid, &dbname, &dbname_len) == FAILURE) {
+ return;
+ }
+
+ if (sqlite3_blob_open(db_obj->db, dbname, table, column, rowid, flags,
&blob) != SQLITE_OK) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to open
blob: %s", sqlite3_errmsg(db_obj->db));
+ RETURN_FALSE;
+ }
+
+ sqlite3_stream = emalloc(sizeof(php_stream_sqlite3_data));
+ sqlite3_stream->blob = blob;
+ sqlite3_stream->position = 0;
+ sqlite3_stream->size = sqlite3_blob_bytes(blob);
+
+ stream = php_stream_alloc_rel(&php_stream_sqlite3_ops, sqlite3_stream,
0, "rb");
+
+ if (stream) {
+ php_stream_to_zval(stream, return_value);
+ } else {
+ RETURN_FALSE;
+ }
+}
+/* }}} */
+
/* {{{ proto int SQLite3Stmt::paramCount() U
Returns the number of parameters within the prepared statement. */
PHP_METHOD(sqlite3stmt, paramCount)
@@ -1481,6 +1659,13 @@
ZEND_BEGIN_ARG_INFO(arginfo_sqlite3stmt_execute, 0)
ZEND_END_ARG_INFO()
+ZEND_BEGIN_ARG_INFO_EX(argingo_sqlite3_openblob, 0, 0, 3)
+ ZEND_ARG_INFO(0, table)
+ ZEND_ARG_INFO(0, column)
+ ZEND_ARG_INFO(0, rowid)
+ ZEND_ARG_INFO(0, dbname)
+ZEND_END_ARG_INFO()
+
ZEND_BEGIN_ARG_INFO_EX(arginfo_sqlite3stmt_bindparam, 0, 0, 2)
ZEND_ARG_INFO(0, param_number)
ZEND_ARG_INFO(1, param)
@@ -1530,6 +1715,7 @@
PHP_ME(sqlite3, querySingle,
arginfo_sqlite3_querysingle, ZEND_ACC_PUBLIC)
PHP_ME(sqlite3, createFunction,
arginfo_sqlite3_createfunction, ZEND_ACC_PUBLIC)
PHP_ME(sqlite3, createAggregate,
arginfo_sqlite3_createaggregate, ZEND_ACC_PUBLIC)
+ PHP_ME(sqlite3, openBlob,
argingo_sqlite3_openblob, ZEND_ACC_PUBLIC)
/* Aliases */
PHP_MALIAS(sqlite3, __construct, open, arginfo_sqlite3_open,
ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
{NULL, NULL, NULL}
--
PHP CVS Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
