1 /*
2 Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License, version 2.0,
6 as published by the Free Software Foundation.
7
8 This program is also distributed with certain software (including
9 but not limited to OpenSSL) that is licensed under separate terms,
10 as designated in a particular file or component or in included license
11 documentation. The authors of MySQL hereby grant you an additional
12 permission to link the program and your derivative works with the
13 separately licensed software that they have included with MySQL.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License, version 2.0, for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 #include <NdbApi.hpp>
26
27 #include "adapter_global.h"
28 #include "js_wrapper_macros.h"
29 #include "Record.h"
30 #include "NativeMethodCall.h"
31 #include "NdbWrapperErrors.h"
32 #include "ScanOperation.h"
33
34 using namespace v8;
35
36 V8WrapperFn newScanOperation;
37 V8WrapperFn prepareAndExecute;
38 V8WrapperFn getOperationError;
39 V8WrapperFn scanNextResult;
40 V8WrapperFn scanFetchResults;
41 V8WrapperFn ScanOperation_close;
42 V8WrapperFn getNdbError;
43 V8WrapperFn ScanOp_readBlobResults;
44
45 class ScanOperationEnvelopeClass : public Envelope {
46 public:
ScanOperationEnvelopeClass()47 ScanOperationEnvelopeClass() : Envelope("ScanOperation") {
48 addMethod("getNdbError", getNdbError<ScanOperation>);
49 addMethod("prepareAndExecute", prepareAndExecute);
50 addMethod("fetchResults", scanFetchResults);
51 addMethod("nextResult", scanNextResult);
52 addMethod("close", ScanOperation_close);
53 addMethod("readBlobResults", ScanOp_readBlobResults);
54 }
55 };
56
57 ScanOperationEnvelopeClass ScanOperationEnvelope;
58
getScanOperationEnvelope()59 Envelope * getScanOperationEnvelope() {
60 return & ScanOperationEnvelope;
61 }
62
63
64 // Constructor wrapper
newScanOperation(const Arguments & args)65 void newScanOperation(const Arguments &args) {
66 EscapableHandleScope scope(args.GetIsolate());
67 ScanOperation * s = new ScanOperation(args);
68 Local<Value> wrapper = ScanOperationEnvelope.wrap(s);
69 // freeFromGC: Disabled as it leads to segfaults during garbage collection
70 // ScanOperationEnvelope.freeFromGC(helper, wrapper);
71 args.GetReturnValue().Set(scope.Escape(wrapper));
72 }
73
74 // void prepareAndExecute()
75 // ASYNC
prepareAndExecute(const Arguments & args)76 void prepareAndExecute(const Arguments &args) {
77 EscapableHandleScope scope(args.GetIsolate());
78 DEBUG_MARKER(UDEB_DEBUG);
79 REQUIRE_ARGS_LENGTH(1);
80 typedef NativeMethodCall_0_<int, ScanOperation> MCALL;
81 MCALL * mcallptr = new MCALL(& ScanOperation::prepareAndExecute, args);
82 mcallptr->errorHandler = getNdbErrorIfLessThanZero;
83 mcallptr->runAsync();
84
85 args.GetReturnValue().SetUndefined();
86 }
87
88 // void close()
89 // ASYNC
ScanOperation_close(const Arguments & args)90 void ScanOperation_close(const Arguments & args) {
91 typedef NativeVoidMethodCall_0_<ScanOperation> NCALL;
92 NCALL * ncallptr = new NCALL(& ScanOperation::close, args);
93 ncallptr->runAsync();
94 args.GetReturnValue().SetUndefined();
95 }
96
97 // int nextResult(buffer)
98 // IMMEDIATE
scanNextResult(const Arguments & args)99 void scanNextResult(const Arguments & args) {
100 DEBUG_MARKER(UDEB_DETAIL);
101 EscapableHandleScope scope(args.GetIsolate());
102 typedef NativeMethodCall_1_<int, ScanOperation, char *> MCALL;
103 MCALL mcall(& ScanOperation::nextResult, args);
104 mcall.run();
105 args.GetReturnValue().Set(scope.Escape(mcall.jsReturnVal()));
106 }
107
108
109 // int fetchResults(buffer, forceSend, callback)
110 // ASYNC; CALLBACK GETS (Null-Or-Error, Int)
scanFetchResults(const Arguments & args)111 void scanFetchResults(const Arguments & args) {
112 DEBUG_MARKER(UDEB_DETAIL);
113 REQUIRE_ARGS_LENGTH(3);
114 typedef NativeMethodCall_2_<int, ScanOperation, char *, bool> MCALL;
115 MCALL * ncallptr = new MCALL(& ScanOperation::fetchResults, args);
116 ncallptr->errorHandler = getNdbErrorIfLessThanZero;
117 ncallptr->runAsync();
118 args.GetReturnValue().SetUndefined();
119 }
120
ScanOp_readBlobResults(const Arguments & args)121 void ScanOp_readBlobResults(const Arguments & args) {
122 ScanOperation * op = unwrapPointer<ScanOperation *>(args.Holder());
123 op->readBlobResults(args);
124 }
125
126 #define WRAP_CONSTANT(TARGET, X) DEFINE_JS_INT(TARGET, #X, NdbScanOperation::X)
127
ScanHelper_initOnLoad(Handle<Object> target)128 void ScanHelper_initOnLoad(Handle<Object> target) {
129 Local<Object> scanObj = Object::New(Isolate::GetCurrent());
130 Local<String> scanKey = NEW_SYMBOL("Scan");
131 target->Set(scanKey, scanObj);
132
133 DEFINE_JS_FUNCTION(scanObj, "create", newScanOperation);
134
135 Local<Object> ScanHelper = Object::New(Isolate::GetCurrent());
136 Local<Object> ScanFlags = Object::New(Isolate::GetCurrent());
137
138 scanObj->Set(NEW_SYMBOL("helper"), ScanHelper);
139 scanObj->Set(NEW_SYMBOL("flags"), ScanFlags);
140
141 WRAP_CONSTANT(ScanFlags, SF_TupScan);
142 WRAP_CONSTANT(ScanFlags, SF_DiskScan);
143 WRAP_CONSTANT(ScanFlags, SF_OrderBy);
144 WRAP_CONSTANT(ScanFlags, SF_OrderByFull);
145 WRAP_CONSTANT(ScanFlags, SF_Descending);
146 WRAP_CONSTANT(ScanFlags, SF_ReadRangeNo);
147 WRAP_CONSTANT(ScanFlags, SF_MultiRange);
148 WRAP_CONSTANT(ScanFlags, SF_KeyInfo);
149
150 DEFINE_JS_INT(ScanHelper, "table_record", SCAN_TABLE_RECORD);
151 DEFINE_JS_INT(ScanHelper, "index_record", SCAN_INDEX_RECORD);
152 DEFINE_JS_INT(ScanHelper, "lock_mode", SCAN_LOCK_MODE);
153 DEFINE_JS_INT(ScanHelper, "bounds", SCAN_BOUNDS);
154 DEFINE_JS_INT(ScanHelper, "flags", SCAN_OPTION_FLAGS);
155 DEFINE_JS_INT(ScanHelper, "batch_size", SCAN_OPTION_BATCH_SIZE);
156 DEFINE_JS_INT(ScanHelper, "parallel", SCAN_OPTION_PARALLELISM);
157 DEFINE_JS_INT(ScanHelper, "filter_code", SCAN_FILTER_CODE);
158 }
159
160