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//===-- 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/Error.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 (new StreamString()),
m_is_file (false)
{
}
SBStream::SBStream (SBStream &&rhs) :
m_opaque_ap (std::move(rhs.m_opaque_ap)),
m_is_file (rhs.m_is_file)
{
}
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 0;
return static_cast<StreamString *>(m_opaque_ap.get())->GetSize();
}
void
SBStream::Printf (const char *format, ...)
{
if (!format)
return;
va_list args;
va_start (args, format);
ref().PrintfVarArg (format, args);
va_end (args);
}
void
SBStream::RedirectToFile (const char *path, bool append)
{
if (path == nullptr)
return;
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());
}
StreamFile *stream_file = new StreamFile;
uint32_t open_options = File::eOpenOptionWrite | File::eOpenOptionCanCreate;
if (append)
open_options |= File::eOpenOptionAppend;
else
open_options |= File::eOpenOptionTruncate;
stream_file->GetFile().Open (path, open_options, lldb::eFilePermissionsFileDefault);
m_opaque_ap.reset (stream_file);
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)
{
if (fh == nullptr)
return;
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();
}
}
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