[lldb-dap] Ensure the IO forwarding threads are managed by the DAP object lifecycle. #120457
+233
−213
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…ject lifecycle. This moves the ownership of the threads that forward stdout/stderr to the DAP object itself to ensure that the threads are joined and that the forwarding is cleaned up when the DAP connection is disconnected. This is part of a larger refactor to allow lldb-dap to run in a listening mode and accept multiple connections.
|
@llvm/pr-subscribers-lldb Author: John Harrison (ashgti) ChangesThis moves the ownership of the threads that forward stdout/stderr to the DAP object itself to ensure that the threads are joined and that the forwarding is cleaned up when the DAP connection is disconnected. This is part of a larger refactor to allow lldb-dap to run in a listening mode and accept multiple connections. Patch is 24.00 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/120457.diff 8 Files Affected:
diff --git a/lldb/tools/lldb-dap/CMakeLists.txt b/lldb/tools/lldb-dap/CMakeLists.txt
index d68098bf7b3266..00906e8ac10904 100644
--- a/lldb/tools/lldb-dap/CMakeLists.txt
+++ b/lldb/tools/lldb-dap/CMakeLists.txt
@@ -1,7 +1,3 @@
-if ( CMAKE_SYSTEM_NAME MATCHES "Windows" OR CMAKE_SYSTEM_NAME MATCHES "NetBSD" )
- list(APPEND extra_libs lldbHost)
-endif ()
-
if (HAVE_LIBPTHREAD)
list(APPEND extra_libs pthread)
endif ()
@@ -32,7 +28,6 @@ add_lldb_tool(lldb-dap
IOStream.cpp
JSONUtils.cpp
LLDBUtils.cpp
- OutputRedirector.cpp
ProgressEvent.cpp
RunInTerminal.cpp
SourceBreakpoint.cpp
@@ -42,6 +37,7 @@ add_lldb_tool(lldb-dap
LINK_LIBS
liblldb
+ lldbHost
${extra_libs}
LINK_COMPONENTS
diff --git a/lldb/tools/lldb-dap/DAP.cpp b/lldb/tools/lldb-dap/DAP.cpp
index 35250d9eef608a..4e0de6fa3a4e90 100644
--- a/lldb/tools/lldb-dap/DAP.cpp
+++ b/lldb/tools/lldb-dap/DAP.cpp
@@ -6,34 +6,53 @@
//
//===----------------------------------------------------------------------===//
-#include <chrono>
-#include <cstdarg>
-#include <fstream>
-#include <mutex>
-
#include "DAP.h"
#include "JSONUtils.h"
#include "LLDBUtils.h"
+#include "lldb/API/SBBreakpoint.h"
#include "lldb/API/SBCommandInterpreter.h"
#include "lldb/API/SBLanguageRuntime.h"
#include "lldb/API/SBListener.h"
#include "lldb/API/SBStream.h"
+#include "lldb/Host/FileSystem.h"
+#include "lldb/API/SBCommandReturnObject.h"
+#include "lldb/API/SBProcess.h"
+#include "lldb/Utility/Status.h"
+#include "lldb/lldb-defines.h"
+#include "lldb/lldb-enumerations.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/Twine.h"
#include "llvm/ADT/StringExtras.h"
+#include "llvm/Support/Error.h"
#include "llvm/Support/FormatVariadic.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+#include <cassert>
+#include <chrono>
+#include <cstdarg>
+#include <cstdio>
+#include <fstream>
+#include <mutex>
+#include <utility>
#if defined(_WIN32)
#define NOMINMAX
#include <fcntl.h>
#include <io.h>
#include <windows.h>
+#else
+#include <unistd.h>
#endif
using namespace lldb_dap;
namespace lldb_dap {
-DAP::DAP(llvm::StringRef path, ReplMode repl_mode)
- : debug_adaptor_path(path), broadcaster("lldb-dap"),
+DAP::DAP(llvm::StringRef path, std::optional<std::ofstream> &log,
+ ReplMode repl_mode, StreamDescriptor input, StreamDescriptor output)
+ : debug_adaptor_path(path), log(log), input(std::move(input)),
+ output(std::move(output)), broadcaster("lldb-dap"),
exception_breakpoints(), focus_tid(LLDB_INVALID_THREAD_ID),
stop_at_entry(false), is_attach(false),
enable_auto_variable_summaries(false),
@@ -43,21 +62,7 @@ DAP::DAP(llvm::StringRef path, ReplMode repl_mode)
configuration_done_sent(false), waiting_for_run_in_terminal(false),
progress_event_reporter(
[&](const ProgressEvent &event) { SendJSON(event.ToJSON()); }),
- reverse_request_seq(0), repl_mode(repl_mode) {
- const char *log_file_path = getenv("LLDBDAP_LOG");
-#if defined(_WIN32)
- // Windows opens stdout and stdin in text mode which converts \n to 13,10
- // while the value is just 10 on Darwin/Linux. Setting the file mode to binary
- // fixes this.
- int result = _setmode(fileno(stdout), _O_BINARY);
- assert(result);
- result = _setmode(fileno(stdin), _O_BINARY);
- UNUSED_IF_ASSERT_DISABLED(result);
- assert(result);
-#endif
- if (log_file_path)
- log.reset(new std::ofstream(log_file_path));
-}
+ reverse_request_seq(0), repl_mode(repl_mode) {}
DAP::~DAP() = default;
@@ -173,6 +178,63 @@ ExceptionBreakpoint *DAP::GetExceptionBreakpoint(const lldb::break_id_t bp_id) {
return nullptr;
}
+llvm::Error DAP::ConfigureIO(std::optional<std::FILE *> overrideOut,
+ std::optional<std::FILE *> overrideErr) {
+ auto *inull = lldb_private::FileSystem::Instance().Fopen(
+ lldb_private::FileSystem::DEV_NULL, "w");
+ in = lldb::SBFile(inull, true);
+
+ lldb_private::Status status;
+ status = pout.CreateNew(/*child_process_inherit=*/false);
+ if (status.Fail())
+ return status.takeError();
+ status = perr.CreateNew(/*child_process_inherit=*/false);
+ if (status.Fail())
+ return status.takeError();
+
+ if (overrideOut) {
+ if (dup2(pout.GetWriteFileDescriptor(), fileno(*overrideOut)) == -1) {
+ return llvm::make_error<llvm::StringError>(
+ llvm::errnoAsErrorCode(),
+ llvm::formatv("override fd=%d failed", fileno(*overrideOut))
+ .str()
+ .c_str());
+ }
+ }
+
+ if (overrideErr) {
+ if (dup2(perr.GetWriteFileDescriptor(), fileno(*overrideErr)) == -1) {
+ return llvm::make_error<llvm::StringError>(
+ llvm::errnoAsErrorCode(),
+ llvm::formatv("override fd=%d failed", fileno(*overrideErr))
+ .str()
+ .c_str());
+ }
+ }
+
+ auto forwarder = [&](lldb_private::Pipe &pipe, OutputType outputType) {
+ char buffer[4098];
+ size_t bytes_read;
+ while (pipe.CanRead()) {
+ lldb_private::Status error = pipe.ReadWithTimeout(
+ &buffer, sizeof(buffer), std::chrono::seconds(1), bytes_read);
+ if (error.Success()) {
+ // zero bytes returned on EOF.
+ if (bytes_read == 0)
+ break;
+ SendOutput(outputType, llvm::StringRef(buffer, bytes_read));
+ }
+ }
+ };
+
+ stdout_forward_thread =
+ std::thread(forwarder, std::ref(pout), OutputType::Stdout);
+ stderr_forward_thread =
+ std::thread(forwarder, std::ref(perr), OutputType::Stderr);
+
+ return llvm::Error::success();
+}
+
// Send the JSON in "json_str" to the "out" stream. Correctly send the
// "Content-Length:" field followed by the length, followed by the raw
// JSON bytes.
@@ -208,19 +270,19 @@ std::string DAP::ReadJSON() {
std::string json_str;
int length;
- if (!input.read_expected(log.get(), "Content-Length: "))
+ if (!input.read_expected(log, "Content-Length: "))
return json_str;
- if (!input.read_line(log.get(), length_str))
+ if (!input.read_line(log, length_str))
return json_str;
if (!llvm::to_integer(length_str, length))
return json_str;
- if (!input.read_expected(log.get(), "\r\n"))
+ if (!input.read_expected(log, "\r\n"))
return json_str;
- if (!input.read_full(log.get(), length, json_str))
+ if (!input.read_full(log, length, json_str))
return json_str;
if (log) {
diff --git a/lldb/tools/lldb-dap/DAP.h b/lldb/tools/lldb-dap/DAP.h
index ae496236f13369..f9cedd32cd0bd3 100644
--- a/lldb/tools/lldb-dap/DAP.h
+++ b/lldb/tools/lldb-dap/DAP.h
@@ -9,36 +9,38 @@
#ifndef LLDB_TOOLS_LLDB_DAP_DAP_H
#define LLDB_TOOLS_LLDB_DAP_DAP_H
-#include <cstdio>
-#include <iosfwd>
-#include <map>
-#include <optional>
-#include <thread>
-
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/JSON.h"
-#include "llvm/Support/Threading.h"
-#include "llvm/Support/raw_ostream.h"
-
-#include "lldb/API/SBAttachInfo.h"
-#include "lldb/API/SBCommandInterpreter.h"
-#include "lldb/API/SBCommandReturnObject.h"
-#include "lldb/API/SBDebugger.h"
-#include "lldb/API/SBEvent.h"
-#include "lldb/API/SBFormat.h"
-#include "lldb/API/SBLaunchInfo.h"
-#include "lldb/API/SBTarget.h"
-#include "lldb/API/SBThread.h"
-
+#include "DAPForward.h"
#include "ExceptionBreakpoint.h"
#include "FunctionBreakpoint.h"
#include "IOStream.h"
#include "InstructionBreakpoint.h"
#include "ProgressEvent.h"
#include "SourceBreakpoint.h"
+#include "lldb/API/SBBroadcaster.h"
+#include "lldb/API/SBCommandInterpreter.h"
+#include "lldb/API/SBDebugger.h"
+#include "lldb/API/SBError.h"
+#include "lldb/API/SBFile.h"
+#include "lldb/API/SBFormat.h"
+#include "lldb/API/SBFrame.h"
+#include "lldb/API/SBTarget.h"
+#include "lldb/API/SBThread.h"
+#include "lldb/API/SBValue.h"
+#include "lldb/API/SBValueList.h"
+#include "lldb/Host/Pipe.h"
+#include "lldb/lldb-types.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/DenseSet.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/JSON.h"
+#include "llvm/Support/Threading.h"
+#include <map>
+#include <mutex>
+#include <optional>
+#include <thread>
+#include <vector>
#define VARREF_LOCALS (int64_t)1
#define VARREF_GLOBALS (int64_t)2
@@ -138,15 +140,20 @@ struct SendEventRequestHandler : public lldb::SBCommandPluginInterface {
struct DAP {
llvm::StringRef debug_adaptor_path;
+ std::optional<std::ofstream> &log;
InputStream input;
OutputStream output;
+ lldb::SBFile in;
+ lldb_private::Pipe pout;
+ lldb_private::Pipe perr;
lldb::SBDebugger debugger;
lldb::SBTarget target;
Variables variables;
lldb::SBBroadcaster broadcaster;
std::thread event_thread;
std::thread progress_event_thread;
- std::unique_ptr<std::ofstream> log;
+ std::thread stdout_forward_thread;
+ std::thread stderr_forward_thread;
llvm::StringMap<SourceBreakpointMap> source_breakpoints;
FunctionBreakpointMap function_breakpoints;
InstructionBreakpointMap instruction_breakpoints;
@@ -198,13 +205,21 @@ struct DAP {
// will contain that expression.
std::string last_nonempty_var_expression;
- DAP(llvm::StringRef path, ReplMode repl_mode);
+ DAP(llvm::StringRef path, std::optional<std::ofstream> &log,
+ ReplMode repl_mode, StreamDescriptor input, StreamDescriptor output);
~DAP();
DAP(const DAP &rhs) = delete;
void operator=(const DAP &rhs) = delete;
ExceptionBreakpoint *GetExceptionBreakpoint(const std::string &filter);
ExceptionBreakpoint *GetExceptionBreakpoint(const lldb::break_id_t bp_id);
+ /// Redirect stdout and stderr fo the IDE's console output.
+ ///
+ /// Errors in this operation will be printed to the log file and the IDE's
+ /// console output as well.
+ llvm::Error ConfigureIO(std::optional<std::FILE *> overrideOut,
+ std::optional<std::FILE *> overrideErr);
+
// Serialize the JSON value into a string and send the JSON packet to
// the "out" stream.
void SendJSON(const llvm::json::Value &json);
diff --git a/lldb/tools/lldb-dap/IOStream.cpp b/lldb/tools/lldb-dap/IOStream.cpp
index d2e8ec40b0a7b8..a078104595037d 100644
--- a/lldb/tools/lldb-dap/IOStream.cpp
+++ b/lldb/tools/lldb-dap/IOStream.cpp
@@ -87,7 +87,7 @@ bool OutputStream::write_full(llvm::StringRef str) {
return true;
}
-bool InputStream::read_full(std::ofstream *log, size_t length,
+bool InputStream::read_full(std::optional<std::ofstream> &log, size_t length,
std::string &text) {
std::string data;
data.resize(length);
@@ -131,7 +131,8 @@ bool InputStream::read_full(std::ofstream *log, size_t length,
return true;
}
-bool InputStream::read_line(std::ofstream *log, std::string &line) {
+bool InputStream::read_line(std::optional<std::ofstream> &log,
+ std::string &line) {
line.clear();
while (true) {
if (!read_full(log, 1, line))
@@ -144,7 +145,8 @@ bool InputStream::read_line(std::ofstream *log, std::string &line) {
return true;
}
-bool InputStream::read_expected(std::ofstream *log, llvm::StringRef expected) {
+bool InputStream::read_expected(std::optional<std::ofstream> &log,
+ llvm::StringRef expected) {
std::string result;
if (!read_full(log, expected.size(), result))
return false;
diff --git a/lldb/tools/lldb-dap/IOStream.h b/lldb/tools/lldb-dap/IOStream.h
index 57d5fd458b7165..f4829473b7b0fb 100644
--- a/lldb/tools/lldb-dap/IOStream.h
+++ b/lldb/tools/lldb-dap/IOStream.h
@@ -52,16 +52,24 @@ struct StreamDescriptor {
struct InputStream {
StreamDescriptor descriptor;
- bool read_full(std::ofstream *log, size_t length, std::string &text);
+ explicit InputStream(StreamDescriptor descriptor)
+ : descriptor(std::move(descriptor)) {};
- bool read_line(std::ofstream *log, std::string &line);
+ bool read_full(std::optional<std::ofstream> &log, size_t length,
+ std::string &text);
- bool read_expected(std::ofstream *log, llvm::StringRef expected);
+ bool read_line(std::optional<std::ofstream> &log, std::string &line);
+
+ bool read_expected(std::optional<std::ofstream> &log,
+ llvm::StringRef expected);
};
struct OutputStream {
StreamDescriptor descriptor;
+ explicit OutputStream(StreamDescriptor descriptor)
+ : descriptor(std::move(descriptor)) {};
+
bool write_full(llvm::StringRef str);
};
} // namespace lldb_dap
diff --git a/lldb/tools/lldb-dap/OutputRedirector.cpp b/lldb/tools/lldb-dap/OutputRedirector.cpp
deleted file mode 100644
index 2c2f49569869b4..00000000000000
--- a/lldb/tools/lldb-dap/OutputRedirector.cpp
+++ /dev/null
@@ -1,63 +0,0 @@
-//===-- OutputRedirector.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
-//
-//===----------------------------------------------------------------------===/
-
-#if defined(_WIN32)
-#include <fcntl.h>
-#include <io.h>
-#else
-#include <unistd.h>
-#endif
-
-#include "DAP.h"
-#include "OutputRedirector.h"
-#include "llvm/ADT/StringRef.h"
-
-using namespace llvm;
-
-namespace lldb_dap {
-
-Error RedirectFd(int fd, std::function<void(llvm::StringRef)> callback) {
- int new_fd[2];
-#if defined(_WIN32)
- if (_pipe(new_fd, 4096, O_TEXT) == -1) {
-#else
- if (pipe(new_fd) == -1) {
-#endif
- int error = errno;
- return createStringError(inconvertibleErrorCode(),
- "Couldn't create new pipe for fd %d. %s", fd,
- strerror(error));
- }
-
- if (dup2(new_fd[1], fd) == -1) {
- int error = errno;
- return createStringError(inconvertibleErrorCode(),
- "Couldn't override the fd %d. %s", fd,
- strerror(error));
- }
-
- int read_fd = new_fd[0];
- std::thread t([read_fd, callback]() {
- char buffer[OutputBufferSize];
- while (true) {
- ssize_t bytes_count = read(read_fd, &buffer, sizeof(buffer));
- if (bytes_count == 0)
- return;
- if (bytes_count == -1) {
- if (errno == EAGAIN || errno == EINTR)
- continue;
- break;
- }
- callback(StringRef(buffer, bytes_count));
- }
- });
- t.detach();
- return Error::success();
-}
-
-} // namespace lldb_dap
diff --git a/lldb/tools/lldb-dap/OutputRedirector.h b/lldb/tools/lldb-dap/OutputRedirector.h
deleted file mode 100644
index e26d1648b104f9..00000000000000
--- a/lldb/tools/lldb-dap/OutputRedirector.h
+++ /dev/null
@@ -1,26 +0,0 @@
-//===-- OutputRedirector.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_TOOLS_LLDB_DAP_OUTPUT_REDIRECTOR_H
-#define LLDB_TOOLS_LLDB_DAP_OUTPUT_REDIRECTOR_H
-
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/Error.h"
-
-namespace lldb_dap {
-
-/// Redirects the output of a given file descriptor to a callback.
-///
-/// \return
-/// \a Error::success if the redirection was set up correctly, or an error
-/// otherwise.
-llvm::Error RedirectFd(int fd, std::function<void(llvm::StringRef)> callback);
-
-} // namespace lldb_dap
-
-#endif // LLDB_TOOLS_LLDB_DAP_OUTPUT_REDIRECTOR_H
diff --git a/lldb/tools/lldb-dap/lldb-dap.cpp b/lldb/tools/lldb-dap/lldb-dap.cpp
index 3bfc578806021e..0d44530d48f92a 100644
--- a/lldb/tools/lldb-dap/lldb-dap.cpp
+++ b/lldb/tools/lldb-dap/lldb-dap.cpp
@@ -10,7 +10,6 @@
#include "FifoFiles.h"
#include "JSONUtils.h"
#include "LLDBUtils.h"
-#include "OutputRedirector.h"
#include "RunInTerminal.h"
#include "Watchpoint.h"
#include "lldb/API/SBDeclaration.h"
@@ -18,6 +17,7 @@
#include "lldb/API/SBListener.h"
#include "lldb/API/SBMemoryRegionInfo.h"
#include "lldb/API/SBStream.h"
+#include "lldb/API/SBEvent.h"
#include "lldb/API/SBStringList.h"
#include "lldb/Host/Config.h"
#include "llvm/ADT/ArrayRef.h"
@@ -137,15 +137,14 @@ lldb::SBValueList *GetTopLevelScope(DAP &dap, int64_t variablesReference) {
}
}
-SOCKET AcceptConnection(DAP &dap, int portno) {
+SOCKET AcceptConnection(std::optional<std::ofstream> &log, int portno) {
// Accept a socket connection from any host on "portno".
SOCKET newsockfd = -1;
struct sockaddr_in serv_addr, cli_addr;
SOCKET sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0) {
- if (dap.log)
- *dap.log << "error: opening socket (" << strerror(errno) << ")"
- << std::endl;
+ if (log)
+ *log << "error: opening socket (" << strerror(errno) << ")" << std::endl;
} else {
memset((char *)&serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
@@ -153,9 +152,9 @@ SOCKET AcceptConnection(DAP &dap, int portno) {
serv_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
serv_addr.sin_port = htons(portno);
if (bind(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) {
- if (dap.log)
- *dap.log << "error: binding socket (" << strerror(errno) << ")"
- << std::endl;
+ if (log)
+ *log << "error: binding socket (" << strerror(errno) << ")"
+ << std::endl;
} else {
listen(sockfd, 5);
socklen_t clilen = sizeof(cli_addr);
@@ -163,8 +162,8 @@ SOCKET AcceptConnection(DAP &dap, int portno) {
llvm::sys::RetryAfterSignal(static_cast<SOCKET>(-1), accept, sockfd,
(struct sockaddr *)&cli_addr, &clilen);
if (newsockfd < 0)
- if (dap.log)
- *dap.log << "error: accept (" << strerror(errno) << ")" << std::endl;
+ if (log)
+ *log << "error: accept (" << strerror(errno) << ")" << std::endl;
}
#if defined(_WIN32)
closesocket(sockfd);
@@ -1099,6 +1098,14 @@ void request_disconnect(DAP &dap, const llvm::json::Object &request) {
dap.broadcaster.BroadcastEventByType(eBroadcastBitStopProgressThread);
dap.progress_event_thread.join();
}
+ if (dap.stdout_forward_thread.joinable()) {
+ dap.pout.Close();
+ dap.stdout_forward_thread.join();
+ }
+ if (dap.stderr_forward_thread.joinable()) {
+ dap.perr.Close();
+ dap.stderr_forward_thread.join();
+ }
dap.disconnecting = true;
}
@@ -1868,7 +1875,22 @@ void request_initialize(DAP &dap, const llvm::json::Object &request) {
// which may affect the outcome of tests.
bool source_init_file = GetBoolean(arguments, "sourceInitFile", true);
- dap.debugger = lldb::SBDebugger::Create(source_init_file);
+ // Do not source init files until in/out/err are configured.
+ dap.debugger = lldb::SBDebugger::Create(false);
+ dap.debugger.SetInputFile(dap.in);
+ dap.debugger.SetOutputFile(lldb::SBFile(dap.pout.GetWriteFileDescriptor(), "w", false));
+ dap.debugger.SetErrorFile(lldb::SBFile(dap.perr.GetWriteFileDescriptor(), "w", false));
+
+ auto interp = dap.debugger.GetCommandInterpreter();
+
+ if (source_init_file) {
+ dap.debugger.SkipLLDBInitFiles(false);
+ dap.debugger.SkipAppInitFiles(false);
+ lldb::SBCommandReturnObject init;
+ interp.SourceInitFileInGlobalDirectory(init);
+ interp.SourceInitFileInHomeDirectory(init);
+ }
+
if (llvm::Error err = dap.RunPreInitCommands()) {
response["success"] = false;
EmplaceSafeString(response, "message", llvm::toString(std::move(err)));
@@ -4907,38 +4929,6 @@ static void redirection_test() {
fflush(stderr);
}
-/// Redirect stdout and stderr fo the IDE's console output.
-///
-/// Errors in this operation will be printed to the log file and the IDE's
-/// console output as well.
-///
-/// \return
-/// A fd pointing to the original stdout.
-static int SetupStdoutStderrRedirection(DAP &dap) {
- int stdoutfd = fileno(stdout);
- int new_stdout_fd = dup(stdoutfd);
- auto output_callback_stderr = [&dap](llvm::StringRef data) {
- dap.SendOutput(OutputType::Stderr, data);
- };
- auto output_callback_stdout = [&dap](llvm::StringRef data) {...
[truncated]
|
|
✅ With the latest revision this PR passed the C/C++ code formatter. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This moves the ownership of the threads that forward stdout/stderr to the DAP object itself to ensure that the threads are joined and that the forwarding is cleaned up when the DAP connection is disconnected.
This is part of a larger refactor to allow lldb-dap to run in a listening mode and accept multiple connections.