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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/StreamFile.h"
#include "lldb/Host/FileSystem.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/Stream.h"
#include "lldb/Utility/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 != 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 == 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 == 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) {
// 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 = 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;
FileSystem::Instance().Open(stream_file->GetFile(), FileSpec(path),
open_options);
m_opaque_ap.reset(stream_file);
if (m_opaque_ap) {
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) {
// 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 = static_cast<StreamString *>(m_opaque_ap.get())->GetString();
}
m_opaque_ap.reset(new StreamFile(fh, transfer_fh_ownership));
if (m_opaque_ap) {
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) {
// 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 = static_cast<StreamString *>(m_opaque_ap.get())->GetString();
}
m_opaque_ap.reset(new StreamFile(::fdopen(fd, "w"), transfer_fh_ownership));
if (m_opaque_ap) {
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 == NULL)
m_opaque_ap.reset(new StreamString());
return *m_opaque_ap;
}
void SBStream::Clear() {
if (m_opaque_ap) {
// 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())->Clear();
}
}
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