diff options
Diffstat (limited to 'tools/lldb-mi/MICmnStreamStdinWindows.cpp')
| -rw-r--r-- | tools/lldb-mi/MICmnStreamStdinWindows.cpp | 336 |
1 files changed, 171 insertions, 165 deletions
diff --git a/tools/lldb-mi/MICmnStreamStdinWindows.cpp b/tools/lldb-mi/MICmnStreamStdinWindows.cpp index 2b24df8d61a66..8d5a3e8aa7c99 100644 --- a/tools/lldb-mi/MICmnStreamStdinWindows.cpp +++ b/tools/lldb-mi/MICmnStreamStdinWindows.cpp @@ -8,19 +8,19 @@ //===----------------------------------------------------------------------===// //++ -// File: MIUtilStreamStdin.cpp +// File: MIUtilStreamStdin.cpp // -// Overview: CMICmnStreamStdinWindows implementation. +// Overview: CMICmnStreamStdinWindows implementation. // -// Environment: Compilers: Visual C++ 12. -// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1 -// Libraries: See MIReadmetxt. +// Environment: Compilers: Visual C++ 12. +// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1 +// Libraries: See MIReadmetxt. // -// Copyright: None. +// Copyright: None. //-- // Third Party Headers: -#if defined( _MSC_VER ) +#if defined(_MSC_VER) #include <stdio.h> #include <Windows.h> #include <io.h> @@ -36,164 +36,168 @@ #include "MIUtilSingletonHelper.h" //++ ------------------------------------------------------------------------------------ -// Details: CMICmnStreamStdinWindows constructor. -// Type: Method. -// Args: None. -// Return: None. -// Throws: None. +// Details: CMICmnStreamStdinWindows constructor. +// Type: Method. +// Args: None. +// Return: None. +// Throws: None. //-- -CMICmnStreamStdinWindows::CMICmnStreamStdinWindows( void ) -: m_constBufferSize( 1024 ) -, m_pStdin( nullptr ) -, m_pCmdBuffer( nullptr ) -, m_pStdinBuffer( nullptr ) -, m_nBytesToBeRead( 0 ) -, m_bRunningInConsoleWin( false ) +CMICmnStreamStdinWindows::CMICmnStreamStdinWindows(void) + : m_constBufferSize(1024) + , m_pStdin(nullptr) + , m_pCmdBuffer(nullptr) + , m_pStdinBuffer(nullptr) + , m_nBytesToBeRead(0) + , m_bRunningInConsoleWin(false) { } //++ ------------------------------------------------------------------------------------ -// Details: CMICmnStreamStdinWindows destructor. -// Type: Overridable. -// Args: None. -// Return: None. -// Throws: None. +// Details: CMICmnStreamStdinWindows destructor. +// Type: Overridable. +// Args: None. +// Return: None. +// Throws: None. //-- -CMICmnStreamStdinWindows::~CMICmnStreamStdinWindows( void ) +CMICmnStreamStdinWindows::~CMICmnStreamStdinWindows(void) { - Shutdown(); + Shutdown(); } //++ ------------------------------------------------------------------------------------ -// Details: Initialize resources for *this Stdin stream. -// Type: Method. -// Args: None. -// Return: MIstatus::success - Functional succeeded. -// MIstatus::failure - Functional failed. -// Throws: None. +// Details: Initialize resources for *this Stdin stream. +// Type: Method. +// Args: None. +// Return: MIstatus::success - Functional succeeded. +// MIstatus::failure - Functional failed. +// Throws: None. //-- -bool CMICmnStreamStdinWindows::Initialize( void ) +bool +CMICmnStreamStdinWindows::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; + 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; #if MICONFIG_CREATE_OWN_STDIN_BUFFER - // Give stdinput a user defined buffer - m_pStdinBuffer = new char[ 1024 ]; - ::setbuf( stdin, m_pStdinBuffer ); + // Give stdinput a user defined buffer + m_pStdinBuffer = new char[1024]; + ::setbuf(stdin, m_pStdinBuffer); #endif // MICONFIG_CREATE_OWN_STDIN_BUFFER - // Clear error indicators for std input - ::clearerr( stdin ); + // Clear error indicators for std input + ::clearerr(stdin); -#if defined( _MSC_VER ) - m_bRunningInConsoleWin = ::_isatty( ::fileno( stdin ) ); +#if defined(_MSC_VER) + m_bRunningInConsoleWin = ::_isatty(::fileno(stdin)); #endif // #if defined( _MSC_VER ) - } + } - m_bInitialized = bOk; + 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; - } + 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; + 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. +// Details: Release resources for *this Stdin stream. +// Type: Method. +// Args: None. +// Return: MIstatus::success - Functional succeeded. +// MIstatus::failure - Functional failed. +// Throws: None. //-- -bool CMICmnStreamStdinWindows::Shutdown( void ) +bool +CMICmnStreamStdinWindows::Shutdown(void) { - if( !m_bInitialized ) - return MIstatus::success; + if (!m_bInitialized) + return MIstatus::success; - m_bInitialized = false; + m_bInitialized = false; - ClrErrorDescription(); + ClrErrorDescription(); - bool bOk = MIstatus::success; - CMIUtilString errMsg; + bool bOk = MIstatus::success; + CMIUtilString errMsg; - // Tidy up - if( m_pCmdBuffer != nullptr ) - { - delete [] m_pCmdBuffer; - m_pCmdBuffer = nullptr; - } - m_pStdin = nullptr; + // Tidy up + if (m_pCmdBuffer != nullptr) + { + delete[] m_pCmdBuffer; + m_pCmdBuffer = nullptr; + } + m_pStdin = nullptr; #if MICONFIG_CREATE_OWN_STDIN_BUFFER - if ( m_pStdinBuffer ) - delete [] m_pStdinBuffer; - m_pStdinBuffer = nullptr; + if (m_pStdinBuffer) + delete[] m_pStdinBuffer; + m_pStdinBuffer = nullptr; #endif // MICONFIG_CREATE_OWN_STDIN_BUFFER - // 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 ); + // 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() ); - } + if (!bOk) + { + SetErrorDescriptionn(MIRSRC(IDS_MI_SHTDWN_ERR_OS_STDIN_HANDLER), errMsg.c_str()); + } - return MIstatus::success; -} + 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. +// 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 CMICmnStreamStdinWindows::InputAvailable( bool & vwbAvail ) +bool +CMICmnStreamStdinWindows::InputAvailable(bool &vwbAvail) { - return m_bRunningInConsoleWin ? InputAvailableConsoleWin( vwbAvail ) : InputAvailableApplication( vwbAvail ); + return m_bRunningInConsoleWin ? InputAvailableConsoleWin(vwbAvail) : InputAvailableApplication(vwbAvail); } //++ ------------------------------------------------------------------------------------ -// Details: Determine if stdin has any characters present in its buffer. If running in a -// terminal use _kbhit(). -// Type: Method. -// Args: vwbAvail - (W) True = There is chars available, false = nothing there. -// Return: MIstatus::success - Functional succeeded. -// MIstatus::failure - Functional failed. -// Throws: None. +// Details: Determine if stdin has any characters present in its buffer. If running in a +// terminal use _kbhit(). +// 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 CMICmnStreamStdinWindows::InputAvailableConsoleWin( bool & vwbAvail ) +bool +CMICmnStreamStdinWindows::InputAvailableConsoleWin(bool &vwbAvail) { -#if defined( _MSC_VER ) - if( m_nBytesToBeRead == 0 ) - { +#if defined(_MSC_VER) + if (m_nBytesToBeRead == 0) + { // Get a windows handle to std input stream - HANDLE handle = ::GetStdHandle( STD_INPUT_HANDLE ); + HANDLE handle = ::GetStdHandle(STD_INPUT_HANDLE); DWORD nBytesWaiting = ::_kbhit(); - - // Save the number of bytes to be read so that we can check if input is available to be read + + // Save the number of bytes to be read so that we can check if input is available to be read m_nBytesToBeRead = nBytesWaiting; // Return state of whether bytes are waiting or not @@ -201,36 +205,37 @@ bool CMICmnStreamStdinWindows::InputAvailableConsoleWin( bool & vwbAvail ) } #endif // #if defined( _MSC_VER ) - return MIstatus::success; + 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. +// 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 CMICmnStreamStdinWindows::InputAvailableApplication( bool & vwbAvail ) +bool +CMICmnStreamStdinWindows::InputAvailableApplication(bool &vwbAvail) { - #if defined( _MSC_VER ) - if( m_nBytesToBeRead == 0 ) - { +#if defined(_MSC_VER) + if (m_nBytesToBeRead == 0) + { // Get a windows handle to std input stream - HANDLE handle = ::GetStdHandle( STD_INPUT_HANDLE ); + HANDLE handle = ::GetStdHandle(STD_INPUT_HANDLE); DWORD nBytesWaiting = 0; // Ask how many bytes are available - if( ::PeekNamedPipe( handle, nullptr, 0, nullptr, &nBytesWaiting, nullptr ) == FALSE ) + if (::PeekNamedPipe(handle, nullptr, 0, nullptr, &nBytesWaiting, nullptr) == FALSE) { // This can occur when the client i.e. Eclipse closes the stdin stream 'cause it deems its work is finished // for that debug session. May be we should be handling SIGKILL somehow? - const CMIUtilString osErrMsg( CMIUtilSystemWindows().GetOSLastError().StripCRAll() ); - SetErrorDescription( CMIUtilString::Format( MIRSRC( IDS_STDIN_ERR_CHKING_BYTE_AVAILABLE ), osErrMsg.c_str() ) ); + const CMIUtilString osErrMsg(CMIUtilSystemWindows().GetOSLastError().StripCRAll()); + SetErrorDescription(CMIUtilString::Format(MIRSRC(IDS_STDIN_ERR_CHKING_BYTE_AVAILABLE), osErrMsg.c_str())); return MIstatus::failure; } - + // Save the number of bytes to be read so that we can check if input is available to be read m_nBytesToBeRead = nBytesWaiting; @@ -239,41 +244,42 @@ bool CMICmnStreamStdinWindows::InputAvailableApplication( bool & vwbAvail ) } #endif // #if defined( _MSC_VER ) - return MIstatus::success; + 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. +// 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 * CMICmnStreamStdinWindows::ReadLine( CMIUtilString & vwErrMsg ) +const MIchar * +CMICmnStreamStdinWindows::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; - } + 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; + } // Subtract the number of bytes read so that we can check if input is available to be read - m_nBytesToBeRead = m_nBytesToBeRead - ::strlen( pText ); - - // Strip off new line characters - for( MIchar * pI = m_pCmdBuffer; *pI != '\0'; pI++ ) - { - if( (*pI == '\n') || (*pI == '\r') ) - { - *pI = '\0'; - break; - } - } - - return pText; -}
\ No newline at end of file + m_nBytesToBeRead = m_nBytesToBeRead - ::strlen(pText); + + // Strip off new line characters + for (MIchar *pI = m_pCmdBuffer; *pI != '\0'; pI++) + { + if ((*pI == '\n') || (*pI == '\r')) + { + *pI = '\0'; + break; + } + } + + return pText; +} |