diff options
Diffstat (limited to 'tools/lldb-mi/MICmnStreamStdinLinux.cpp')
| -rw-r--r-- | tools/lldb-mi/MICmnStreamStdinLinux.cpp | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/tools/lldb-mi/MICmnStreamStdinLinux.cpp b/tools/lldb-mi/MICmnStreamStdinLinux.cpp deleted file mode 100644 index 07e652d..0000000 --- a/tools/lldb-mi/MICmnStreamStdinLinux.cpp +++ /dev/null @@ -1,225 +0,0 @@ -//===-- MICmnStreamStdinLinux.cpp --------------------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -//++ -// File: MIUtilStreamStdin.cpp -// -// Overview: CMICmnStreamStdinLinux implementation. -// -// Environment: Compilers: Visual C++ 12. -// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1 -// Libraries: See MIReadmetxt. -// -// Copyright: None. -//-- - -// Third Party Headers: -#if defined(__APPLE__) -#include <sys/select.h> -#include <unistd.h> // For STDIN_FILENO -#endif // defined( __APPLE__ ) -#include <string.h> // For std::strerror() - -// In-house headers: -#include "MICmnStreamStdinLinux.h" -#include "MICmnLog.h" -#include "MICmnResources.h" -#include "MIUtilSingletonHelper.h" - -//++ ------------------------------------------------------------------------------------ -// Details: CMICmnStreamStdinLinux constructor. -// Type: Method. -// Args: None. -// Return: None. -// Throws: None. -//-- -CMICmnStreamStdinLinux::CMICmnStreamStdinLinux(void) - : m_constBufferSize(1024) - , m_pStdin(nullptr) - , m_pCmdBuffer(nullptr) -{ -} - -//++ ------------------------------------------------------------------------------------ -// Details: CMICmnStreamStdinLinux destructor. -// Type: Overridable. -// Args: None. -// Return: None. -// Throws: None. -//-- -CMICmnStreamStdinLinux::~CMICmnStreamStdinLinux(void) -{ - Shutdown(); -} - -//++ ------------------------------------------------------------------------------------ -// Details: Initialize resources for *this Stdin stream. -// Type: Method. -// Args: None. -// Return: MIstatus::success - Functional succeeded. -// MIstatus::failure - Functional failed. -// Throws: None. -//-- -bool -CMICmnStreamStdinLinux::Initialize(void) -{ - if (m_bInitialized) - return MIstatus::success; - - bool bOk = MIstatus::success; - CMIUtilString errMsg; - - // Note initialisation order is important here as some resources depend on previous - MI::ModuleInit<CMICmnLog>(IDS_MI_INIT_ERR_LOG, bOk, errMsg); - MI::ModuleInit<CMICmnResources>(IDS_MI_INIT_ERR_RESOURCES, bOk, errMsg); - - // Other resources required - if (bOk) - { - m_pCmdBuffer = new MIchar[m_constBufferSize]; - m_pStdin = stdin; - } - - // Clear error indicators for std input - ::clearerr(stdin); - - m_bInitialized = bOk; - - if (!bOk) - { - CMIUtilString strInitError(CMIUtilString::Format(MIRSRC(IDS_MI_INIT_ERR_OS_STDIN_HANDLER), errMsg.c_str())); - SetErrorDescription(strInitError); - return MIstatus::failure; - } - - return MIstatus::success; -} - -//++ ------------------------------------------------------------------------------------ -// Details: Release resources for *this Stdin stream. -// Type: Method. -// Args: None. -// Return: MIstatus::success - Functional succeeded. -// MIstatus::failure - Functional failed. -// Throws: None. -//-- -bool -CMICmnStreamStdinLinux::Shutdown(void) -{ - if (!m_bInitialized) - return MIstatus::success; - - m_bInitialized = false; - - ClrErrorDescription(); - - bool bOk = MIstatus::success; - CMIUtilString errMsg; - - // Tidy up - if (m_pCmdBuffer != nullptr) - { - delete[] m_pCmdBuffer; - m_pCmdBuffer = nullptr; - } - m_pStdin = nullptr; - - // Note shutdown order is important here - MI::ModuleShutdown<CMICmnResources>(IDS_MI_INIT_ERR_RESOURCES, bOk, errMsg); - MI::ModuleShutdown<CMICmnLog>(IDS_MI_INIT_ERR_LOG, bOk, errMsg); - - if (!bOk) - { - SetErrorDescriptionn(MIRSRC(IDS_MI_SHTDWN_ERR_OS_STDIN_HANDLER), errMsg.c_str()); - } - - return MIstatus::success; -} - -//++ ------------------------------------------------------------------------------------ -// Details: Determine if stdin has any characters present in its buffer. -// Type: Method. -// Args: vwbAvail - (W) True = There is chars available, false = nothing there. -// Return: MIstatus::success - Functional succeeded. -// MIstatus::failure - Functional failed. -// Throws: None. -//-- -bool -CMICmnStreamStdinLinux::InputAvailable(bool &vwbAvail) -{ -#if defined(__APPLE__) - // The code below is needed on OSX where lldb-mi hangs when doing -exec-run. - // The hang seems to come from calling fgets and fileno from different thread. - // Although this problem was not observed on Linux. - // A solution based on 'ioctl' was initially committed but it seems to make - // lldb-mi takes much more processor time. The solution based on 'select' works - // well but it seems to slow the execution of lldb-mi tests a lot on Linux. - // As a result, this code is #defined to run only on OSX. - fd_set setOfStdin; - FD_ZERO(&setOfStdin); - FD_SET(STDIN_FILENO, &setOfStdin); - - // Wait while input would be available - if (::select(STDIN_FILENO + 1, &setOfStdin, nullptr, nullptr, nullptr) == -1) - { - vwbAvail = false; - return MIstatus::failure; - } - -#endif // defined( __APPLE__ ) - vwbAvail = true; - return MIstatus::success; -} - -//++ ------------------------------------------------------------------------------------ -// Details: Wait on new line of data from stdin stream (completed by '\n' or '\r'). -// Type: Method. -// Args: vwErrMsg - (W) Empty string ok or error description. -// Return: MIchar * - text buffer pointer or NULL on failure. -// Throws: None. -//-- -const MIchar * -CMICmnStreamStdinLinux::ReadLine(CMIUtilString &vwErrMsg) -{ - vwErrMsg.clear(); - - // Read user input - const MIchar *pText = ::fgets(&m_pCmdBuffer[0], m_constBufferSize, stdin); - if (pText == nullptr) - { - if (::ferror(m_pStdin) != 0) - vwErrMsg = ::strerror(errno); - return nullptr; - } - - // Strip off new line characters - for (MIchar *pI = m_pCmdBuffer; *pI != '\0'; pI++) - { - if ((*pI == '\n') || (*pI == '\r')) - { - *pI = '\0'; - break; - } - } - - return pText; -} - -//++ ------------------------------------------------------------------------------------ -// Details: Interrupt current and prevent new ReadLine operations. -// Type: Method. -// Args: None. -// Return: None. -// Throws: None. -//-- -void -CMICmnStreamStdinLinux::InterruptReadLine(void) -{ - fclose(stdin); -} |
