lawrence_danna updated this revision to Diff 222264.
lawrence_danna added a comment.
rebased, removed duplicate test
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D67793/new/
https://reviews.llvm.org/D67793
Files:
lldb/include/lldb/API/LLDB.h
lldb/include/lldb/API/SBDefines.h
lldb/include/lldb/API/SBError.h
lldb/include/lldb/API/SBFile.h
lldb/include/lldb/Host/File.h
lldb/packages/Python/lldbsuite/test/python_api/file_handle/TestFileHandle.py
lldb/scripts/interface/SBFile.i
lldb/scripts/lldb.swig
lldb/source/API/CMakeLists.txt
lldb/source/API/SBFile.cpp
lldb/source/Host/common/File.cpp
lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h
Index: lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h
===================================================================
--- lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h
+++ lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h
@@ -466,8 +466,6 @@
void Reset(PyRefType type, PyObject *py_obj) override;
void Reset(File &file, const char *mode);
- static uint32_t GetOptionsFromMode(llvm::StringRef mode);
-
lldb::FileUP GetUnderlyingFile() const;
};
Index: lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
===================================================================
--- lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
+++ lldb/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.cpp
@@ -949,7 +949,6 @@
PythonFile::PythonFile(File &file, const char *mode) { Reset(file, mode); }
-
PythonFile::PythonFile(PyRefType type, PyObject *o) { Reset(type, o); }
PythonFile::~PythonFile() {}
@@ -1014,22 +1013,6 @@
#endif
}
-uint32_t PythonFile::GetOptionsFromMode(llvm::StringRef mode) {
- if (mode.empty())
- return 0;
-
- return llvm::StringSwitch<uint32_t>(mode.str())
- .Case("r", File::eOpenOptionRead)
- .Case("w", File::eOpenOptionWrite)
- .Case("a", File::eOpenOptionWrite | File::eOpenOptionAppend |
- File::eOpenOptionCanCreate)
- .Case("r+", File::eOpenOptionRead | File::eOpenOptionWrite)
- .Case("w+", File::eOpenOptionRead | File::eOpenOptionWrite |
- File::eOpenOptionCanCreate | File::eOpenOptionTruncate)
- .Case("a+", File::eOpenOptionRead | File::eOpenOptionWrite |
- File::eOpenOptionAppend | File::eOpenOptionCanCreate)
- .Default(0);
-}
FileUP PythonFile::GetUnderlyingFile() const {
if (!IsValid())
@@ -1038,7 +1021,7 @@
// We don't own the file descriptor returned by this function, make sure the
// File object knows about that.
PythonString py_mode = GetAttributeValue("mode").AsType<PythonString>();
- auto options = PythonFile::GetOptionsFromMode(py_mode.GetString());
+ auto options = File::GetOptionsFromMode(py_mode.GetString());
auto file = std::make_unique<File>(PyObject_AsFileDescriptor(m_py_obj),
options, false);
if (!file->IsValid())
Index: lldb/source/Host/common/File.cpp
===================================================================
--- lldb/source/Host/common/File.cpp
+++ lldb/source/Host/common/File.cpp
@@ -68,6 +68,22 @@
return nullptr;
}
+uint32_t File::GetOptionsFromMode(llvm::StringRef mode) {
+ if (mode.empty())
+ return 0;
+ return llvm::StringSwitch<uint32_t>(mode.str())
+ .Case("r", File::eOpenOptionRead)
+ .Case("w", File::eOpenOptionWrite)
+ .Case("a", File::eOpenOptionWrite | File::eOpenOptionAppend |
+ File::eOpenOptionCanCreate)
+ .Case("r+", File::eOpenOptionRead | File::eOpenOptionWrite)
+ .Case("w+", File::eOpenOptionRead | File::eOpenOptionWrite |
+ File::eOpenOptionCanCreate | File::eOpenOptionTruncate)
+ .Case("a+", File::eOpenOptionRead | File::eOpenOptionWrite |
+ File::eOpenOptionAppend | File::eOpenOptionCanCreate)
+ .Default(0);
+}
+
int File::kInvalidDescriptor = -1;
FILE *File::kInvalidStream = nullptr;
@@ -143,9 +159,14 @@
Status File::Close() {
Status error;
- if (StreamIsValid() && m_own_stream) {
- if (::fclose(m_stream) == EOF)
- error.SetErrorToErrno();
+ if (StreamIsValid()) {
+ if (m_own_stream) {
+ if (::fclose(m_stream) == EOF)
+ error.SetErrorToErrno();
+ } else {
+ if (::fflush(m_stream) == EOF)
+ error.SetErrorToErrno();
+ }
}
if (DescriptorIsValid() && m_own_descriptor) {
Index: lldb/source/API/SBFile.cpp
===================================================================
--- /dev/null
+++ lldb/source/API/SBFile.cpp
@@ -0,0 +1,76 @@
+//===-- SBFile.cpp ------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/API/SBFile.h"
+#include "lldb/API/SBError.h"
+#include "lldb/Host/File.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+SBFile::~SBFile() {}
+
+SBFile::SBFile() {}
+
+SBFile::SBFile(FILE *file, bool transfer_ownership) {
+ m_opaque_sp = std::make_shared<File>(file, transfer_ownership);
+}
+
+SBFile::SBFile(int fd, const char *mode, bool transfer_owndership) {
+ auto options = File::GetOptionsFromMode(mode);
+ m_opaque_sp = std::make_shared<File>(fd, options, transfer_owndership);
+}
+
+SBError SBFile::Read(uint8_t *buf, size_t num_bytes, size_t *bytes_read) {
+ SBError error;
+ if (!m_opaque_sp) {
+ error.SetErrorString("invalid SBFile");
+ *bytes_read = 0;
+ } else {
+ Status status = m_opaque_sp->Read(buf, num_bytes);
+ error.SetError(status);
+ *bytes_read = num_bytes;
+ }
+ return error;
+}
+
+SBError SBFile::Write(const uint8_t *buf, size_t num_bytes,
+ size_t *bytes_written) {
+ SBError error;
+ if (!m_opaque_sp) {
+ error.SetErrorString("invalid SBFile");
+ *bytes_written = 0;
+ } else {
+ Status status = m_opaque_sp->Write(buf, num_bytes);
+ error.SetError(status);
+ *bytes_written = num_bytes;
+ }
+ return error;
+}
+
+SBError SBFile::Flush() {
+ SBError error;
+ if (!m_opaque_sp) {
+ error.SetErrorString("invalid SBFile");
+ } else {
+ Status status = m_opaque_sp->Flush();
+ error.SetError(status);
+ }
+ return error;
+}
+
+bool SBFile::IsValid() const { return m_opaque_sp && m_opaque_sp->IsValid(); }
+
+SBError SBFile::Close() {
+ SBError error;
+ if (m_opaque_sp) {
+ Status status = m_opaque_sp->Close();
+ error.SetError(status);
+ }
+ return error;
+}
Index: lldb/source/API/CMakeLists.txt
===================================================================
--- lldb/source/API/CMakeLists.txt
+++ lldb/source/API/CMakeLists.txt
@@ -34,6 +34,7 @@
SBExecutionContext.cpp
SBExpressionOptions.cpp
SBFileSpec.cpp
+ SBFile.cpp
SBFileSpecList.cpp
SBFrame.cpp
SBFunction.cpp
Index: lldb/scripts/lldb.swig
===================================================================
--- lldb/scripts/lldb.swig
+++ lldb/scripts/lldb.swig
@@ -123,6 +123,7 @@
#include "lldb/API/SBExecutionContext.h"
#include "lldb/API/SBExpressionOptions.h"
#include "lldb/API/SBFileSpec.h"
+#include "lldb/API/SBFile.h"
#include "lldb/API/SBFileSpecList.h"
#include "lldb/API/SBFrame.h"
#include "lldb/API/SBFunction.h"
@@ -210,6 +211,7 @@
%include "./interface/SBExecutionContext.i"
%include "./interface/SBExpressionOptions.i"
%include "./interface/SBFileSpec.i"
+%include "./interface/SBFile.i"
%include "./interface/SBFileSpecList.i"
%include "./interface/SBFrame.i"
%include "./interface/SBFunction.i"
Index: lldb/scripts/interface/SBFile.i
===================================================================
--- /dev/null
+++ lldb/scripts/interface/SBFile.i
@@ -0,0 +1,41 @@
+//===-- SWIG Interface for SBFile -----------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+%include <pybuffer.i>
+
+%pybuffer_binary(const uint8_t *buf, size_t num_bytes);
+%pybuffer_mutable_binary(uint8_t *buf, size_t num_bytes);
+
+namespace lldb {
+
+%feature("docstring",
+"Represents a file."
+) SBFile;
+
+class SBFile
+{
+public:
+ SBFile();
+ SBFile(int fd, const char *mode, bool transfer_ownership);
+
+ ~SBFile ();
+
+ %feature("autodoc", "Read(buffer) -> SBError, bytes_read") Read;
+ SBError Read(uint8_t *buf, size_t num_bytes, size_t *OUTPUT);
+
+ %feature("autodoc", "Write(buffer) -> SBError, written_read") Write;
+ SBError Write(const uint8_t *buf, size_t num_bytes, size_t *OUTPUT);
+
+ void Flush();
+
+ bool IsValid() const;
+
+ SBError Close();
+};
+
+} // namespace lldb
Index: lldb/packages/Python/lldbsuite/test/python_api/file_handle/TestFileHandle.py
===================================================================
--- lldb/packages/Python/lldbsuite/test/python_api/file_handle/TestFileHandle.py
+++ lldb/packages/Python/lldbsuite/test/python_api/file_handle/TestFileHandle.py
@@ -0,0 +1,132 @@
+"""
+Test lldb Python API for file handles.
+"""
+
+from __future__ import print_function
+
+import contextlib
+import os
+import io
+import re
+import sys
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+def readStrippedLines(f):
+ def i():
+ for line in f:
+ line = line.strip()
+ if line:
+ yield line
+ return list(i())
+
+def handle_command(debugger, cmd, raise_on_fail=True, collect_result=True):
+
+ ret = lldb.SBCommandReturnObject()
+
+ if collect_result:
+ interpreter = debugger.GetCommandInterpreter()
+ interpreter.HandleCommand(cmd, ret)
+ else:
+ debugger.HandleCommand(cmd)
+
+ if collect_result and raise_on_fail and not ret.Succeeded():
+ raise Exception
+
+ return ret.GetOutput()
+
+
+class FileHandleTestCase(TestBase):
+
+ mydir = TestBase.compute_mydir(__file__)
+
+ @add_test_categories(['pyapi'])
+ @no_debug_info_test
+ def test_legacy_file_out(self):
+ debugger = lldb.SBDebugger.Create()
+ try:
+ with open('output', 'w') as f:
+ debugger.SetOutputFileHandle(f, False)
+ handle_command(debugger, 'script 1+1')
+ debugger.GetOutputFileHandle().write('FOO\n')
+ with open('output', 'r') as f:
+ self.assertEqual(readStrippedLines(f), ['2', 'FOO'])
+ finally:
+ self.RemoveTempFile('output')
+ lldb.SBDebugger.Destroy(debugger)
+
+
+ @add_test_categories(['pyapi'])
+ @no_debug_info_test
+ def test_legacy_file_err(self):
+ debugger = lldb.SBDebugger.Create()
+ try:
+ with open('output', 'w') as f:
+ debugger.SetErrorFileHandle(f, False)
+ handle_command(debugger, 'lol', raise_on_fail=False, collect_result=False)
+ lldb.SBDebugger.Destroy(debugger)
+ with open('output', 'r') as f:
+ self.assertTrue(re.search("is not a valid command", f.read()))
+ finally:
+ self.RemoveTempFile('output')
+ lldb.SBDebugger.Destroy(debugger)
+
+
+ @add_test_categories(['pyapi'])
+ @no_debug_info_test
+ def test_sbfile_invalid(self):
+ sbf = lldb.SBFile()
+ self.assertFalse(sbf.IsValid())
+ e, n = sbf.Write(b'foo')
+ self.assertTrue(e.Fail())
+ self.assertEqual(n, 0)
+ buffer = bytearray(100)
+ e, n = sbf.Read(buffer)
+ self.assertEqual(n, 0)
+ self.assertTrue(e.Fail())
+
+
+ @add_test_categories(['pyapi'])
+ @no_debug_info_test
+ def test_sbfile_write(self):
+ try:
+ with open('output', 'w') as f:
+ sbf = lldb.SBFile(f.fileno(), "w", False)
+ self.assertTrue(sbf.IsValid())
+ e, n = sbf.Write(b'FOO\nBAR')
+ self.assertTrue(e.Success())
+ self.assertEqual(n, 7)
+ sbf.Close()
+ self.assertFalse(sbf.IsValid())
+
+ with open('output', 'r') as f:
+ self.assertEqual(readStrippedLines(f), ['FOO', 'BAR'])
+ finally:
+ self.RemoveTempFile('output')
+
+
+ @add_test_categories(['pyapi'])
+ @no_debug_info_test
+ def test_sbfile_read(self):
+ try:
+ with open('output', 'w') as f:
+ f.write('FOO')
+ with open('output', 'r') as f:
+ sbf = lldb.SBFile(f.fileno(), "r", False)
+ self.assertTrue(sbf.IsValid())
+ buffer = bytearray(100)
+ e, n = sbf.Read(buffer)
+ self.assertTrue(e.Success())
+ self.assertEqual(buffer[:n], b'FOO')
+ finally:
+ self.RemoveTempFile('output')
+
+
+
+
+
+
Index: lldb/include/lldb/Host/File.h
===================================================================
--- lldb/include/lldb/Host/File.h
+++ lldb/include/lldb/Host/File.h
@@ -124,6 +124,8 @@
int GetDescriptor() const;
+ static uint32_t GetOptionsFromMode(llvm::StringRef mode);
+
WaitableHandle GetWaitableHandle() override;
FILE *GetStream();
Index: lldb/include/lldb/API/SBFile.h
===================================================================
--- /dev/null
+++ lldb/include/lldb/API/SBFile.h
@@ -0,0 +1,38 @@
+//===-- SBFile.h --------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_SBFile_h_
+#define LLDB_SBFile_h_
+
+#include "lldb/API/SBDefines.h"
+
+namespace lldb {
+
+class LLDB_API SBFile {
+public:
+ SBFile();
+ SBFile(FILE *file, bool transfer_ownership);
+ SBFile(int fd, const char *mode, bool transfer_ownership);
+ ~SBFile();
+
+ SBError Read(uint8_t *buf, size_t num_bytes, size_t *bytes_read);
+ SBError Write(const uint8_t *buf, size_t num_bytes, size_t *bytes_written);
+ SBError Flush();
+ bool IsValid() const;
+ SBError Close();
+
+ operator bool() const { return IsValid(); }
+ bool operator!() const { return !IsValid(); }
+
+private:
+ FileSP m_opaque_sp;
+};
+
+} // namespace lldb
+
+#endif // LLDB_SBFile_h_
Index: lldb/include/lldb/API/SBError.h
===================================================================
--- lldb/include/lldb/API/SBError.h
+++ lldb/include/lldb/API/SBError.h
@@ -70,6 +70,7 @@
friend class SBTrace;
friend class SBValue;
friend class SBWatchpoint;
+ friend class SBFile;
lldb_private::Status *get();
Index: lldb/include/lldb/API/SBDefines.h
===================================================================
--- lldb/include/lldb/API/SBDefines.h
+++ lldb/include/lldb/API/SBDefines.h
@@ -92,6 +92,7 @@
class LLDB_API SBVariablesOptions;
class LLDB_API SBWatchpoint;
class LLDB_API SBUnixSignals;
+class LLDB_API SBFile;
typedef bool (*SBBreakpointHitCallback)(void *baton, SBProcess &process,
SBThread &thread,
Index: lldb/include/lldb/API/LLDB.h
===================================================================
--- lldb/include/lldb/API/LLDB.h
+++ lldb/include/lldb/API/LLDB.h
@@ -13,8 +13,8 @@
#include "lldb/API/SBAttachInfo.h"
#include "lldb/API/SBBlock.h"
#include "lldb/API/SBBreakpoint.h"
-#include "lldb/API/SBBreakpointName.h"
#include "lldb/API/SBBreakpointLocation.h"
+#include "lldb/API/SBBreakpointName.h"
#include "lldb/API/SBBroadcaster.h"
#include "lldb/API/SBCommandInterpreter.h"
#include "lldb/API/SBCommandReturnObject.h"
@@ -28,6 +28,7 @@
#include "lldb/API/SBEvent.h"
#include "lldb/API/SBExecutionContext.h"
#include "lldb/API/SBExpressionOptions.h"
+#include "lldb/API/SBFile.h"
#include "lldb/API/SBFileSpec.h"
#include "lldb/API/SBFileSpecList.h"
#include "lldb/API/SBFrame.h"
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