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//===-- RNBContext.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
//
//===----------------------------------------------------------------------===//
//
// Created by Greg Clayton on 12/12/07.
//
//===----------------------------------------------------------------------===//
#ifndef __RNBContext_h__
#define __RNBContext_h__
#include "DNBError.h"
#include "PThreadEvent.h"
#include "RNBDefs.h"
#include <string>
#include <vector>
class RNBContext {
public:
enum {
event_proc_state_changed = 0x001,
event_proc_thread_running = 0x002, // Sticky
event_proc_thread_exiting = 0x004,
event_proc_stdio_available = 0x008,
event_proc_profile_data = 0x010,
event_read_packet_available = 0x020,
event_read_thread_running = 0x040, // Sticky
event_read_thread_exiting = 0x080,
event_darwin_log_data_available = 0x100,
normal_event_bits = event_proc_state_changed | event_proc_thread_exiting |
event_proc_stdio_available | event_proc_profile_data |
event_read_packet_available |
event_read_thread_exiting |
event_darwin_log_data_available,
sticky_event_bits = event_proc_thread_running | event_read_thread_running,
all_event_bits = sticky_event_bits | normal_event_bits
} event_t;
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
RNBContext()
: m_pid(INVALID_NUB_PROCESS), m_pid_stop_count(0),
m_events(0, all_event_bits), m_pid_pthread(), m_launch_status(),
m_arg_vec(), m_env_vec(), m_detach_on_error(false) {}
virtual ~RNBContext();
nub_process_t ProcessID() const { return m_pid; }
bool HasValidProcessID() const { return m_pid != INVALID_NUB_PROCESS; }
void SetProcessID(nub_process_t pid);
nub_size_t GetProcessStopCount() const { return m_pid_stop_count; }
bool SetProcessStopCount(nub_size_t count) {
// Returns true if this class' notion of the PID state changed
if (m_pid_stop_count == count)
return false; // Didn't change
m_pid_stop_count = count;
return true; // The stop count has changed.
}
bool ProcessStateRunning() const;
PThreadEvent &Events() { return m_events; }
nub_event_t AllEventBits() const { return all_event_bits; }
nub_event_t NormalEventBits() const { return normal_event_bits; }
nub_event_t StickyEventBits() const { return sticky_event_bits; }
const char *EventsAsString(nub_event_t events, std::string &s);
size_t ArgumentCount() const { return m_arg_vec.size(); }
const char *ArgumentAtIndex(size_t index);
void PushArgument(const char *arg) {
if (arg)
m_arg_vec.push_back(arg);
}
void ClearArgv() { m_arg_vec.erase(m_arg_vec.begin(), m_arg_vec.end()); }
size_t EnvironmentCount() const { return m_env_vec.size(); }
const char *EnvironmentAtIndex(size_t index);
void PushEnvironment(const char *arg) {
if (arg)
m_env_vec.push_back(arg);
}
void PushEnvironmentIfNeeded(const char *arg);
void ClearEnvironment() {
m_env_vec.erase(m_env_vec.begin(), m_env_vec.end());
}
DNBError &LaunchStatus() { return m_launch_status; }
const char *LaunchStatusAsString(std::string &s);
nub_launch_flavor_t LaunchFlavor() const { return m_launch_flavor; }
void SetLaunchFlavor(nub_launch_flavor_t flavor) { m_launch_flavor = flavor; }
const char *GetWorkingDirectory() const {
if (!m_working_directory.empty())
return m_working_directory.c_str();
return NULL;
}
bool SetWorkingDirectory(const char *path);
std::string &GetSTDIN() { return m_stdin; }
std::string &GetSTDOUT() { return m_stdout; }
std::string &GetSTDERR() { return m_stderr; }
std::string &GetWorkingDir() { return m_working_dir; }
const char *GetSTDINPath() {
return m_stdin.empty() ? NULL : m_stdin.c_str();
}
const char *GetSTDOUTPath() {
return m_stdout.empty() ? NULL : m_stdout.c_str();
}
const char *GetSTDERRPath() {
return m_stderr.empty() ? NULL : m_stderr.c_str();
}
const char *GetWorkingDirPath() {
return m_working_dir.empty() ? NULL : m_working_dir.c_str();
}
void PushProcessEvent(const char *p) { m_process_event.assign(p); }
const char *GetProcessEvent() { return m_process_event.c_str(); }
void SetDetachOnError(bool detach) { m_detach_on_error = detach; }
bool GetDetachOnError() { return m_detach_on_error; }
protected:
//------------------------------------------------------------------
// Classes that inherit from RNBContext can see and modify these
//------------------------------------------------------------------
nub_process_t m_pid;
std::string m_stdin;
std::string m_stdout;
std::string m_stderr;
std::string m_working_dir;
nub_size_t m_pid_stop_count;
PThreadEvent m_events; // Threaded events that we can wait for
pthread_t m_pid_pthread;
nub_launch_flavor_t m_launch_flavor; // How to launch our inferior process
DNBError
m_launch_status; // This holds the status from the last launch attempt.
std::vector<std::string> m_arg_vec;
std::vector<std::string>
m_env_vec; // This will be unparsed - entries FOO=value
std::string m_working_directory;
std::string m_process_event;
bool m_detach_on_error;
void StartProcessStatusThread();
void StopProcessStatusThread();
static void *ThreadFunctionProcessStatus(void *arg);
private:
//------------------------------------------------------------------
// Outlaw copy and assignment operators
//------------------------------------------------------------------
RNBContext(const RNBContext &rhs);
RNBContext &operator=(const RNBContext &rhs);
};
#endif // #ifndef __RNBContext_h__
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