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| 1 | +/* |
| 2 | + * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | + * |
| 5 | + * The Universal Permissive License (UPL), Version 1.0 |
| 6 | + * |
| 7 | + * Subject to the condition set forth below, permission is hereby granted to any |
| 8 | + * person obtaining a copy of this software, associated documentation and/or |
| 9 | + * data (collectively the "Software"), free of charge and under any and all |
| 10 | + * copyright rights in the Software, and any and all patent rights owned or |
| 11 | + * freely licensable by each licensor hereunder covering either (i) the |
| 12 | + * unmodified Software as contributed to or provided by such licensor, or (ii) |
| 13 | + * the Larger Works (as defined below), to deal in both |
| 14 | + * |
| 15 | + * (a) the Software, and |
| 16 | + * |
| 17 | + * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if |
| 18 | + * one is included with the Software each a "Larger Work" to which the Software |
| 19 | + * is contributed by such licensors), |
| 20 | + * |
| 21 | + * without restriction, including without limitation the rights to copy, create |
| 22 | + * derivative works of, display, perform, and distribute the Software and make, |
| 23 | + * use, sell, offer for sale, import, export, have made, and have sold the |
| 24 | + * Software and the Larger Work(s), and to sublicense the foregoing rights on |
| 25 | + * either these or other terms. |
| 26 | + * |
| 27 | + * This license is subject to the following condition: |
| 28 | + * |
| 29 | + * The above copyright notice and either this complete permission notice or at a |
| 30 | + * minimum a reference to the UPL must be included in all copies or substantial |
| 31 | + * portions of the Software. |
| 32 | + * |
| 33 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 34 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 35 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 36 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 37 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 38 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 39 | + * SOFTWARE. |
| 40 | + */ |
| 41 | +package com.oracle.graal.python.builtins.modules.io; |
| 42 | + |
| 43 | +import static com.oracle.graal.python.builtins.objects.bytes.BytesUtils.getBytes; |
| 44 | +import static com.oracle.graal.python.builtins.objects.bytes.BytesUtils.getBytesLength; |
| 45 | +import static com.oracle.graal.python.nodes.ErrorMessages.S_RETURNED_TOO_MUCH_DATA; |
| 46 | +import static com.oracle.graal.python.nodes.ErrorMessages.S_SHOULD_RETURN_BYTES; |
| 47 | +import static com.oracle.graal.python.runtime.exception.PythonErrorType.IOUnsupportedOperation; |
| 48 | +import static com.oracle.graal.python.runtime.exception.PythonErrorType.ValueError; |
| 49 | + |
| 50 | +import java.util.List; |
| 51 | + |
| 52 | +import com.oracle.graal.python.builtins.Builtin; |
| 53 | +import com.oracle.graal.python.builtins.CoreFunctions; |
| 54 | +import com.oracle.graal.python.builtins.PythonBuiltinClassType; |
| 55 | +import com.oracle.graal.python.builtins.PythonBuiltins; |
| 56 | +import com.oracle.graal.python.builtins.objects.common.SequenceStorageNodes; |
| 57 | +import com.oracle.graal.python.builtins.objects.object.PythonObjectLibrary; |
| 58 | +import com.oracle.graal.python.nodes.function.PythonBuiltinBaseNode; |
| 59 | +import com.oracle.graal.python.nodes.function.PythonBuiltinNode; |
| 60 | +import com.oracle.graal.python.nodes.function.builtins.PythonBinaryBuiltinNode; |
| 61 | +import com.oracle.truffle.api.dsl.Cached; |
| 62 | +import com.oracle.truffle.api.dsl.GenerateNodeFactory; |
| 63 | +import com.oracle.truffle.api.dsl.NodeFactory; |
| 64 | +import com.oracle.truffle.api.dsl.Specialization; |
| 65 | +import com.oracle.truffle.api.frame.VirtualFrame; |
| 66 | +import com.oracle.truffle.api.library.CachedLibrary; |
| 67 | +import com.oracle.truffle.api.profiles.ConditionProfile; |
| 68 | + |
| 69 | +@CoreFunctions(extendClasses = PythonBuiltinClassType.PBufferedIOBase) |
| 70 | +public class BufferedIOBaseBuiltins extends PythonBuiltins { |
| 71 | + |
| 72 | + protected static final String DETACH = "detach"; |
| 73 | + protected static final String READ = "read"; |
| 74 | + protected static final String READ1 = "read1"; |
| 75 | + protected static final String READINTO = "readinto"; |
| 76 | + protected static final String READINTO1 = "readinto1"; |
| 77 | + protected static final String WRITE = "write"; |
| 78 | + |
| 79 | + @Override |
| 80 | + protected List<? extends NodeFactory<? extends PythonBuiltinBaseNode>> getNodeFactories() { |
| 81 | + return BufferedIOBaseBuiltinsFactory.getFactories(); |
| 82 | + } |
| 83 | + |
| 84 | + @Builtin(name = DETACH, minNumOfPositionalArgs = 1) |
| 85 | + @GenerateNodeFactory |
| 86 | + abstract static class DetachNode extends PythonBuiltinNode { |
| 87 | + |
| 88 | + /** |
| 89 | + * implementation of cpython/Modules/_io/bufferedio.h:_io__BufferedIOBase_detach |
| 90 | + */ |
| 91 | + @Specialization |
| 92 | + Object detach(@SuppressWarnings("unused") Object self) { |
| 93 | + throw raise(IOUnsupportedOperation, DETACH); |
| 94 | + } |
| 95 | + } |
| 96 | + |
| 97 | + @Builtin(name = READ, minNumOfPositionalArgs = 1) |
| 98 | + @GenerateNodeFactory |
| 99 | + abstract static class ReadNode extends PythonBuiltinNode { |
| 100 | + |
| 101 | + /** |
| 102 | + * implementation of cpython/Modules/_io/bufferedio.c:bufferediobase_read |
| 103 | + */ |
| 104 | + @Specialization |
| 105 | + Object read(@SuppressWarnings("unused") Object self) { |
| 106 | + throw raise(IOUnsupportedOperation, READ); |
| 107 | + } |
| 108 | + } |
| 109 | + |
| 110 | + @Builtin(name = READ1, minNumOfPositionalArgs = 1) |
| 111 | + @GenerateNodeFactory |
| 112 | + abstract static class Read1Node extends PythonBuiltinNode { |
| 113 | + |
| 114 | + /** |
| 115 | + * implementation of cpython/Modules/_io/bufferedio.c:bufferediobase_read1 |
| 116 | + */ |
| 117 | + @Specialization |
| 118 | + Object read1(@SuppressWarnings("unused") Object self) { |
| 119 | + throw raise(IOUnsupportedOperation, READ1); |
| 120 | + } |
| 121 | + } |
| 122 | + |
| 123 | + abstract static class ReadIntoGenericNode extends PythonBinaryBuiltinNode { |
| 124 | + protected String method() { |
| 125 | + return null; |
| 126 | + } |
| 127 | + |
| 128 | + /** |
| 129 | + * implementation of cpython/Modules/_io/bufferedio.c:_bufferediobase_readinto_generic |
| 130 | + */ |
| 131 | + @Specialization(limit = "2") |
| 132 | + Object readinto(VirtualFrame frame, Object self, Object buffer, |
| 133 | + @CachedLibrary(limit = "2") PythonObjectLibrary asByte, |
| 134 | + @CachedLibrary("self") PythonObjectLibrary libSelf, |
| 135 | + @Cached ConditionProfile isBuffer, |
| 136 | + @Cached ConditionProfile oversize, |
| 137 | + @Cached SequenceStorageNodes.BytesMemcpyNode memcpyNode) { |
| 138 | + int len = getBytesLength(asByte, buffer); |
| 139 | + Object data = libSelf.lookupAndCallRegularMethod(self, frame, method(), len); |
| 140 | + if (isBuffer.profile(!asByte.isBuffer(data))) { |
| 141 | + throw raise(ValueError, S_SHOULD_RETURN_BYTES, "read()"); |
| 142 | + } |
| 143 | + byte[] bytes = getBytes(asByte, data); |
| 144 | + int dataLen = bytes.length; |
| 145 | + if (oversize.profile(dataLen > len)) { |
| 146 | + throw raise(ValueError, S_RETURNED_TOO_MUCH_DATA, "read()", len, dataLen); |
| 147 | + } |
| 148 | + memcpyNode.execute(frame, buffer, 0, bytes, 0, dataLen); |
| 149 | + return dataLen; |
| 150 | + } |
| 151 | + } |
| 152 | + |
| 153 | + @Builtin(name = READINTO, minNumOfPositionalArgs = 2, parameterNames = {"$self", "$buffer"}) |
| 154 | + @GenerateNodeFactory |
| 155 | + abstract static class ReadIntoNode extends ReadIntoGenericNode { |
| 156 | + @Override |
| 157 | + protected final String method() { |
| 158 | + return READ; |
| 159 | + } |
| 160 | + } |
| 161 | + |
| 162 | + @Builtin(name = READINTO1, minNumOfPositionalArgs = 2, parameterNames = {"$self", "$buffer"}) |
| 163 | + @GenerateNodeFactory |
| 164 | + abstract static class ReadInto1Node extends ReadIntoGenericNode { |
| 165 | + @Override |
| 166 | + protected final String method() { |
| 167 | + return READ1; |
| 168 | + } |
| 169 | + } |
| 170 | + |
| 171 | + @Builtin(name = WRITE, minNumOfPositionalArgs = 1) |
| 172 | + @GenerateNodeFactory |
| 173 | + abstract static class WriteNode extends PythonBuiltinNode { |
| 174 | + |
| 175 | + /** |
| 176 | + * implementation of cpython/Modules/_io/bufferedio.c:bufferediobase_write |
| 177 | + */ |
| 178 | + @Specialization |
| 179 | + Object write(@SuppressWarnings("unused") Object self) { |
| 180 | + throw raise(IOUnsupportedOperation, WRITE); |
| 181 | + } |
| 182 | + } |
| 183 | +} |
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