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We now have SBStream that mirrors the generic stream classes we 

use inside lldb (lldb_private::StreamFile, and lldb_private::StreamString).

llvm-svn: 114188
This commit is contained in:
Greg Clayton 2010-09-17 17:42:16 +00:00
parent d059997000
commit e2ae97f267
6 changed files with 275 additions and 6 deletions
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81
lldb/include/lldb/API/SBStream.h Normal file
View File

@ -0,0 +1,81 @@
//===-- SBStream.h ----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLDB_SBStream_h_
#define LLDB_SBStream_h_
#include "lldb/API/SBDefines.h"
namespace lldb {
class SBStream
{
public:
SBStream ();
~SBStream ();
bool
IsValid() const;
// If this stream is not redirected to a file, it will maintain a local
// cache for the stream data which can be accessed using this accessor.
const char *
GetData ();
// If this stream is not redirected to a file, it will maintain a local
// cache for the stream output whose length can be accessed using this
// accessor.
size_t
GetSize();
void
Printf (const char *format, ...);
void
RedirectToFile (const char *path, bool append);
void
RedirectToFileHandle (FILE *fh, bool transfer_fh_ownership);
void
RedirectToFileDescriptor (int fd, bool transfer_fh_ownership);
// If the stream is redirected to a file, forget about the file and if
// ownership of the file was transfered to this object, close the file.
// If the stream is backed by a local cache, clear this cache.
void
Clear ();
protected:
#ifndef SWIG
lldb_private::Stream *
operator->();
lldb_private::Stream *
get();
lldb_private::Stream &
ref();
#endif
private:
DISALLOW_COPY_AND_ASSIGN (SBStream);
std::auto_ptr<lldb_private::Stream> m_opaque_ap;
bool m_is_file;
};
} // namespace lldb
#endif // LLDB_SBStream_h_

2
lldb/include/lldb/API/SBStringList.h
View File

@ -47,6 +47,8 @@ public:
void
Clear ();
protected:
#ifndef SWIG
const lldb_private::StringList *

2
lldb/include/lldb/Core/StreamFile.h
View File

@ -32,7 +32,7 @@ public:
StreamFile (uint32_t flags, uint32_t addr_size, lldb::ByteOrder byte_order, FILE *f);
StreamFile (FILE *f);
StreamFile (FILE *f, bool tranfer_ownership = false);
StreamFile (uint32_t flags, uint32_t addr_size, lldb::ByteOrder byte_order, const char *path, const char *permissions = "w");

8
lldb/lldb.xcodeproj/project.pbxproj
View File

@ -69,6 +69,8 @@
268F9D55123AA16600B91E9B /* SBSymbolContextList.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 268F9D54123AA16600B91E9B /* SBSymbolContextList.cpp */; };
26B42B1F1187A92B0079C8C8 /* lldb-include.h in Headers */ = {isa = PBXBuildFile; fileRef = 26B42B1E1187A92B0079C8C8 /* lldb-include.h */; settings = {ATTRIBUTES = (Public, ); }; };
26B42C4D1187ABA50079C8C8 /* LLDB.h in Headers */ = {isa = PBXBuildFile; fileRef = 26B42C4C1187ABA50079C8C8 /* LLDB.h */; settings = {ATTRIBUTES = (Public, ); }; };
26C72C94124322890068DC16 /* SBStream.h in Headers */ = {isa = PBXBuildFile; fileRef = 26C72C93124322890068DC16 /* SBStream.h */; };
26C72C961243229A0068DC16 /* SBStream.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 26C72C951243229A0068DC16 /* SBStream.cpp */; };
26D27C9F11ED3A4E0024D721 /* ELFHeader.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 26D27C9D11ED3A4E0024D721 /* ELFHeader.cpp */; };
26D27CA011ED3A4E0024D721 /* ELFHeader.h in Headers */ = {isa = PBXBuildFile; fileRef = 26D27C9E11ED3A4E0024D721 /* ELFHeader.h */; };
26D5B06511B07550009A862E /* StoppointCallbackContext.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 26BC7E0910F1B83100F91463 /* StoppointCallbackContext.cpp */; };
@ -849,6 +851,8 @@
26BC7F3E10F1B90C00F91463 /* ThreadList.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = ThreadList.cpp; path = source/Target/ThreadList.cpp; sourceTree = "<group>"; };
26BC7F3F10F1B90C00F91463 /* ThreadPlan.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = ThreadPlan.cpp; path = source/Target/ThreadPlan.cpp; sourceTree = "<group>"; };
26BC7F4C10F1BC1A00F91463 /* ObjectFile.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = ObjectFile.cpp; path = source/Symbol/ObjectFile.cpp; sourceTree = "<group>"; };
26C72C93124322890068DC16 /* SBStream.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = SBStream.h; path = include/lldb/API/SBStream.h; sourceTree = "<group>"; };
26C72C951243229A0068DC16 /* SBStream.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SBStream.cpp; path = source/API/SBStream.cpp; sourceTree = "<group>"; };
26C81CA411335651004BDC5A /* UUID.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = UUID.h; path = include/lldb/Core/UUID.h; sourceTree = "<group>"; };
26C81CA511335651004BDC5A /* UUID.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = UUID.cpp; path = source/Core/UUID.cpp; sourceTree = "<group>"; };
26C9DF03113C5B93006B0F94 /* lldb */ = {isa = PBXFileReference; lastKnownFileType = folder; name = lldb; path = include/lldb; sourceTree = "<group>"; };
@ -1481,6 +1485,8 @@
9A9831031125FC5800A56CB0 /* SBProcess.cpp */,
9A9831061125FC5800A56CB0 /* SBSourceManager.h */,
9A9831051125FC5800A56CB0 /* SBSourceManager.cpp */,
26C72C93124322890068DC16 /* SBStream.h */,
26C72C951243229A0068DC16 /* SBStream.cpp */,
9A357670116E7B5200E8ED2F /* SBStringList.h */,
9A357672116E7B6400E8ED2F /* SBStringList.cpp */,
26DE205A11618FF600A093E2 /* SBSymbol.h */,
@ -2278,6 +2284,7 @@
268F9D53123AA15200B91E9B /* SBSymbolContextList.h in Headers */,
2618D7901240115500F2B8FE /* SectionLoadList.h in Headers */,
2618D959124056C700F2B8FE /* NameToDIE.h in Headers */,
26C72C94124322890068DC16 /* SBStream.h in Headers */,
);
runOnlyForDeploymentPostprocessing = 0;
};
@ -2741,6 +2748,7 @@
268F9D55123AA16600B91E9B /* SBSymbolContextList.cpp in Sources */,
2618D7921240116900F2B8FE /* SectionLoadList.cpp in Sources */,
2618D9EB12406FE600F2B8FE /* NameToDIE.cpp in Sources */,
26C72C961243229A0068DC16 /* SBStream.cpp in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};

178
lldb/source/API/SBStream.cpp Normal file
View File

@ -0,0 +1,178 @@
//===-- SBStream.cpp ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/API/SBStream.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Core/StreamString.h"
using namespace lldb;
using namespace lldb_private;
SBStream::SBStream () :
m_opaque_ap (),
m_is_file (false)
{
}
SBStream::~SBStream ()
{
}
bool
SBStream::IsValid() const
{
return (m_opaque_ap.get() != NULL);
}
// If this stream is not redirected to a file, it will maintain a local
// cache for the stream data which can be accessed using this accessor.
const char *
SBStream::GetData ()
{
if (m_is_file || m_opaque_ap.get() == NULL)
return NULL;
return static_cast<StreamString *>(m_opaque_ap.get())->GetData();
}
// If this stream is not redirected to a file, it will maintain a local
// cache for the stream output whose length can be accessed using this
// accessor.
size_t
SBStream::GetSize()
{
if (m_is_file || m_opaque_ap.get() == NULL)
return NULL;
return static_cast<StreamString *>(m_opaque_ap.get())->GetSize();
}
void
SBStream::Printf (const char *format, ...)
{
va_list args;
va_start (args, format);
ref().PrintfVarArg (format, args);
va_end (args);
}
void
SBStream::RedirectToFile (const char *path, bool append)
{
std::string local_data;
if (m_opaque_ap.get())
{
// See if we have any locally backed data. If so, copy it so we can then
// redirect it to the file so we don't lose the data
if (!m_is_file)
local_data.swap(static_cast<StreamString *>(m_opaque_ap.get())->GetString());
}
m_opaque_ap.reset (new StreamFile (path, append ? "a" : "w"));
if (m_opaque_ap.get())
{
m_is_file = true;
// If we had any data locally in our StreamString, then pass that along to
// the to new file we are redirecting to.
if (!local_data.empty())
m_opaque_ap->Write (&local_data[0], local_data.size());
}
else
m_is_file = false;
}
void
SBStream::RedirectToFileHandle (FILE *fh, bool transfer_fh_ownership)
{
std::string local_data;
if (m_opaque_ap.get())
{
// See if we have any locally backed data. If so, copy it so we can then
// redirect it to the file so we don't lose the data
if (!m_is_file)
local_data.swap(static_cast<StreamString *>(m_opaque_ap.get())->GetString());
}
m_opaque_ap.reset (new StreamFile (fh, transfer_fh_ownership));
if (m_opaque_ap.get())
{
m_is_file = true;
// If we had any data locally in our StreamString, then pass that along to
// the to new file we are redirecting to.
if (!local_data.empty())
m_opaque_ap->Write (&local_data[0], local_data.size());
}
else
m_is_file = false;
}
void
SBStream::RedirectToFileDescriptor (int fd, bool transfer_fh_ownership)
{
std::string local_data;
if (m_opaque_ap.get())
{
// See if we have any locally backed data. If so, copy it so we can then
// redirect it to the file so we don't lose the data
if (!m_is_file)
local_data.swap(static_cast<StreamString *>(m_opaque_ap.get())->GetString());
}
m_opaque_ap.reset (new StreamFile (::fdopen (fd, "w"), transfer_fh_ownership));
if (m_opaque_ap.get())
{
m_is_file = true;
// If we had any data locally in our StreamString, then pass that along to
// the to new file we are redirecting to.
if (!local_data.empty())
m_opaque_ap->Write (&local_data[0], local_data.size());
}
else
m_is_file = false;
}
lldb_private::Stream *
SBStream::operator->()
{
return m_opaque_ap.get();
}
lldb_private::Stream *
SBStream::get()
{
return m_opaque_ap.get();
}
lldb_private::Stream &
SBStream::ref()
{
if (m_opaque_ap.get() == NULL)
m_opaque_ap.reset (new StreamString());
return *m_opaque_ap.get();
}
void
SBStream::Clear ()
{
if (m_opaque_ap.get())
{
// See if we have any locally backed data. If so, copy it so we can then
// redirect it to the file so we don't lose the data
if (m_is_file)
m_opaque_ap.reset();
else
static_cast<StreamString *>(m_opaque_ap.get())->GetString().clear();
}
}

10
lldb/source/Core/StreamFile.cpp
View File

@ -31,16 +31,16 @@ StreamFile::StreamFile () :
StreamFile::StreamFile(uint32_t flags, uint32_t addr_size, ByteOrder byte_order, FILE *f) :
Stream (flags, addr_size, byte_order),
m_file(f),
m_close_file(false),
m_file (f),
m_close_file (false),
m_path_name ()
{
}
StreamFile::StreamFile(FILE *f) :
StreamFile::StreamFile(FILE *f, bool tranfer_ownership) :
Stream (),
m_file(f),
m_close_file(false),
m_file (f),
m_close_file (tranfer_ownership),
m_path_name ()
{
}