diff options
Diffstat (limited to 'win/tclWinPipe.c')
| -rw-r--r-- | win/tclWinPipe.c | 343 |
1 files changed, 192 insertions, 151 deletions
diff --git a/win/tclWinPipe.c b/win/tclWinPipe.c index cf1cdb1..b9b881c 100644 --- a/win/tclWinPipe.c +++ b/win/tclWinPipe.c @@ -194,7 +194,7 @@ static DWORD WINAPI PipeReaderThread(LPVOID arg); static void PipeSetupProc(ClientData clientData, int flags); static void PipeWatchProc(ClientData instanceData, int mask); static DWORD WINAPI PipeWriterThread(LPVOID arg); -static int TempFileName(WCHAR name[MAX_PATH]); +static int TempFileName(TCHAR name[MAX_PATH]); static int WaitForRead(PipeInfo *infoPtr, int blocking); static void PipeThreadActionProc(ClientData instanceData, int action); @@ -204,7 +204,7 @@ static void PipeThreadActionProc(ClientData instanceData, * I/O. */ -static Tcl_ChannelType pipeChannelType = { +static const Tcl_ChannelType pipeChannelType = { "pipe", /* Type name. */ TCL_CHANNEL_VERSION_5, /* v5 channel */ TCL_CLOSE2PROC, /* Close proc. */ @@ -221,7 +221,7 @@ static Tcl_ChannelType pipeChannelType = { NULL, /* handler proc. */ NULL, /* wide seek proc */ PipeThreadActionProc, /* thread action proc */ - NULL, /* truncate */ + NULL /* truncate */ }; /* @@ -412,7 +412,7 @@ PipeCheckProc( if (needEvent) { infoPtr->flags |= PIPE_PENDING; - evPtr = (PipeEvent *) ckalloc(sizeof(PipeEvent)); + evPtr = ckalloc(sizeof(PipeEvent)); evPtr->header.proc = PipeEventProc; evPtr->infoPtr = infoPtr; Tcl_QueueEvent((Tcl_Event *) evPtr, TCL_QUEUE_TAIL); @@ -443,7 +443,7 @@ TclWinMakeFile( { WinFile *filePtr; - filePtr = (WinFile *) ckalloc(sizeof(WinFile)); + filePtr = ckalloc(sizeof(WinFile)); filePtr->type = WIN_FILE; filePtr->handle = handle; @@ -472,27 +472,18 @@ TclWinMakeFile( static int TempFileName( - WCHAR name[MAX_PATH]) /* Buffer in which name for temporary file + TCHAR name[MAX_PATH]) /* Buffer in which name for temporary file * gets stored. */ { - TCHAR *prefix; - - prefix = (tclWinProcs->useWide) ? (TCHAR *) L"TCL" : (TCHAR *) "TCL"; - if ((*tclWinProcs->getTempPathProc)(MAX_PATH, name) != 0) { - if ((*tclWinProcs->getTempFileNameProc)((TCHAR *) name, prefix, 0, - name) != 0) { + TCHAR *prefix = TEXT("TCL"); + if (GetTempPath(MAX_PATH, name) != 0) { + if (GetTempFileName(name, prefix, 0, name) != 0) { return 1; } } - if (tclWinProcs->useWide) { - ((WCHAR *) name)[0] = '.'; - ((WCHAR *) name)[1] = '\0'; - } else { - ((char *) name)[0] = '.'; - ((char *) name)[1] = '\0'; - } - return (*tclWinProcs->getTempFileNameProc)((TCHAR *) name, prefix, 0, - name); + name[0] = '.'; + name[1] = '\0'; + return GetTempFileName(name, prefix, 0, name); } /* @@ -604,7 +595,7 @@ TclpOpenFile( flags = 0; if (!(mode & O_CREAT)) { - flags = (*tclWinProcs->getFileAttributesProc)(nativePath); + flags = GetFileAttributes(nativePath); if (flags == 0xFFFFFFFF) { flags = 0; } @@ -620,8 +611,8 @@ TclpOpenFile( * Now we get to create the file. */ - handle = (*tclWinProcs->createFileProc)(nativePath, accessMode, - shareMode, NULL, createMode, flags, NULL); + handle = CreateFile(nativePath, accessMode, shareMode, + NULL, createMode, flags, NULL); Tcl_DStringFree(&ds); if (handle == INVALID_HANDLE_VALUE) { @@ -668,7 +659,7 @@ TclFile TclpCreateTempFile( const char *contents) /* String to write into temp file, or NULL. */ { - WCHAR name[MAX_PATH]; + TCHAR name[MAX_PATH]; const char *native; Tcl_DString dstring; HANDLE handle; @@ -677,7 +668,7 @@ TclpCreateTempFile( return NULL; } - handle = (*tclWinProcs->createFileProc)((TCHAR *) name, + handle = CreateFile(name, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE, NULL); if (handle == INVALID_HANDLE_VALUE) { @@ -737,7 +728,7 @@ TclpCreateTempFile( TclWinConvertError(GetLastError()); CloseHandle(handle); - (*tclWinProcs->deleteFileProc)((TCHAR *) name); + DeleteFile(name); return NULL; } @@ -760,13 +751,13 @@ TclpCreateTempFile( Tcl_Obj * TclpTempFileName(void) { - WCHAR fileName[MAX_PATH]; + TCHAR fileName[MAX_PATH]; if (TempFileName(fileName) == 0) { return NULL; } - return TclpNativeToNormalized((ClientData) fileName); + return TclpNativeToNormalized(fileName); } /* @@ -842,7 +833,7 @@ TclpCloseFile( if (filePtr->handle != NULL && CloseHandle(filePtr->handle) == FALSE) { TclWinConvertError(GetLastError()); - ckfree((char *) filePtr); + ckfree(filePtr); return -1; } } @@ -852,7 +843,7 @@ TclpCloseFile( Tcl_Panic("TclpCloseFile: unexpected file type"); } - ckfree((char *) filePtr); + ckfree(filePtr); return 0; } @@ -953,7 +944,7 @@ TclpCreateProcess( { int result, applType, createFlags; Tcl_DString cmdLine; /* Complete command line (TCHAR). */ - STARTUPINFOA startInfo; + STARTUPINFO startInfo; PROCESS_INFORMATION procInfo; SECURITY_ATTRIBUTES secAtts; HANDLE hProcess, h, inputHandle, outputHandle, errorHandle; @@ -1142,82 +1133,12 @@ TclpCreateProcess( } if (applType == APPL_DOS) { - /* - * Under Windows 95, 16-bit DOS applications do not work well with - * pipes: - * - * 1. EOF on a pipe between a detached 16-bit DOS application and - * another application is not seen at the other end of the pipe, - * so the listening process blocks forever on reads. This inablity - * to detect EOF happens when either a 16-bit app or the 32-bit - * app is the listener. - * - * 2. If a 16-bit DOS application (detached or not) blocks when - * writing to a pipe, it will never wake up again, and it - * eventually brings the whole system down around it. - * - * The 16-bit application is run as a normal process inside of a - * hidden helper console app, and this helper may be run as a - * detached process. If any of the stdio handles is a pipe, the - * helper application accumulates information into temp files and - * forwards it to or from the DOS application as appropriate. - * This means that DOS apps must receive EOF from a stdin pipe - * before they will actually begin, and must finish generating - * stdout or stderr before the data will be sent to the next stage - * of the pipe. - * - * The helper app should be located in the same directory as the - * tcl dll. - */ - Tcl_Obj *tclExePtr, *pipeDllPtr; - char *start, *end; - int i, fileExists; - Tcl_DString pipeDll; - - if (createFlags != 0) { - startInfo.wShowWindow = SW_HIDE; - startInfo.dwFlags |= STARTF_USESHOWWINDOW; - createFlags = CREATE_NEW_CONSOLE; - } - - Tcl_DStringInit(&pipeDll); - Tcl_DStringAppend(&pipeDll, TCL_PIPE_DLL, -1); - tclExePtr = TclGetObjNameOfExecutable(); - Tcl_IncrRefCount(tclExePtr); - start = Tcl_GetStringFromObj(tclExePtr, &i); - for (end = start + (i-1); end > start; end--) { - if (*end == '/') { - break; - } - } - if (*end != '/') { - Tcl_AppendResult(interp, "no / in executable path name \"", - start, "\"", (char *) NULL); - Tcl_DecrRefCount(tclExePtr); - Tcl_DStringFree(&pipeDll); - goto end; - } - i = (end - start) + 1; - pipeDllPtr = Tcl_NewStringObj(start, i); - Tcl_AppendToObj(pipeDllPtr, Tcl_DStringValue(&pipeDll), -1); - Tcl_IncrRefCount(pipeDllPtr); - if (Tcl_FSConvertToPathType(interp, pipeDllPtr) != TCL_OK) { - Tcl_Panic("Tcl_FSConvertToPathType failed"); - } - fileExists = (Tcl_FSAccess(pipeDllPtr, F_OK) == 0); - if (!fileExists) { - Tcl_AppendResult(interp, "Tcl pipe dll \"", - Tcl_DStringValue(&pipeDll), "\" not found", - (char *) NULL); - Tcl_DecrRefCount(tclExePtr); - Tcl_DecrRefCount(pipeDllPtr); - Tcl_DStringFree(&pipeDll); - goto end; - } - Tcl_DStringAppend(&cmdLine, Tcl_DStringValue(&pipeDll), -1); - Tcl_DecrRefCount(tclExePtr); - Tcl_DecrRefCount(pipeDllPtr); - Tcl_DStringFree(&pipeDll); + Tcl_AppendResult(interp, + "DOS application process not supported on this platform", + (char *) NULL); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "EXEC", "DOS_APP", + NULL); + goto end; } } @@ -1241,7 +1162,7 @@ TclpCreateProcess( BuildCommandLine(execPath, argc, argv, &cmdLine); - if ((*tclWinProcs->createProcessProc)(NULL, + if (CreateProcess(NULL, (TCHAR *) Tcl_DStringValue(&cmdLine), NULL, NULL, TRUE, (DWORD) createFlags, NULL, NULL, &startInfo, &procInfo) == 0) { TclWinConvertError(GetLastError()); @@ -1374,7 +1295,7 @@ ApplicationType( IMAGE_DOS_HEADER header; Tcl_DString nameBuf, ds; const TCHAR *nativeName; - WCHAR nativeFullPath[MAX_PATH]; + TCHAR nativeFullPath[MAX_PATH]; static char extensions[][5] = {"", ".com", ".exe", ".bat"}; /* @@ -1400,8 +1321,8 @@ ApplicationType( Tcl_DStringAppend(&nameBuf, extensions[i], -1); nativeName = Tcl_WinUtfToTChar(Tcl_DStringValue(&nameBuf), Tcl_DStringLength(&nameBuf), &ds); - found = (*tclWinProcs->searchPathProc)(NULL, nativeName, NULL, - MAX_PATH, nativeFullPath, &rest); + found = SearchPath(NULL, nativeName, NULL, MAX_PATH, + nativeFullPath, &rest); Tcl_DStringFree(&ds); if (found == 0) { continue; @@ -1412,11 +1333,11 @@ ApplicationType( * known type. */ - attr = (*tclWinProcs->getFileAttributesProc)((TCHAR *) nativeFullPath); + attr = GetFileAttributes(nativeFullPath); if ((attr == 0xffffffff) || (attr & FILE_ATTRIBUTE_DIRECTORY)) { continue; } - strcpy(fullName, Tcl_WinTCharToUtf((TCHAR *) nativeFullPath, -1, &ds)); + strcpy(fullName, Tcl_WinTCharToUtf(nativeFullPath, -1, &ds)); Tcl_DStringFree(&ds); ext = strrchr(fullName, '.'); @@ -1425,7 +1346,7 @@ ApplicationType( break; } - hFile = (*tclWinProcs->createFileProc)((TCHAR *) nativeFullPath, + hFile = CreateFile(nativeFullPath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { @@ -1505,9 +1426,8 @@ ApplicationType( * application name from the arguments. */ - (*tclWinProcs->getShortPathNameProc)((TCHAR *) nativeFullPath, - nativeFullPath, MAX_PATH); - strcpy(fullName, Tcl_WinTCharToUtf((TCHAR *) nativeFullPath, -1, &ds)); + GetShortPathName(nativeFullPath, nativeFullPath, MAX_PATH); + strcpy(fullName, Tcl_WinTCharToUtf(nativeFullPath, -1, &ds)); Tcl_DStringFree(&ds); } return applType; @@ -1570,6 +1490,7 @@ BuildCommandLine( } else { int count; Tcl_UniChar ch; + for (start = arg; *start != '\0'; start += count) { count = Tcl_UtfToUniChar(start, &ch); if (Tcl_UniCharIsSpace(ch)) { /* INTL: ISO space. */ @@ -1653,9 +1574,8 @@ TclpCreateCommandChannel( Tcl_Pid *pidPtr) /* An array of process identifiers. */ { char channelName[16 + TCL_INTEGER_SPACE]; - int channelId; DWORD id; - PipeInfo *infoPtr = (PipeInfo *) ckalloc((unsigned) sizeof(PipeInfo)); + PipeInfo *infoPtr = ckalloc(sizeof(PipeInfo)); PipeInit(); @@ -1670,21 +1590,7 @@ TclpCreateCommandChannel( infoPtr->writeBuf = 0; infoPtr->writeBufLen = 0; infoPtr->writeError = 0; - infoPtr->channel = (Tcl_Channel) NULL; - - /* - * Use one of the fds associated with the channel as the channel id. - */ - - if (readFile) { - channelId = (int) ((WinFile*)readFile)->handle; - } else if (writeFile) { - channelId = (int) ((WinFile*)writeFile)->handle; - } else if (errorFile) { - channelId = (int) ((WinFile*)errorFile)->handle; - } else { - channelId = 0; - } + infoPtr->channel = NULL; infoPtr->validMask = 0; @@ -1726,9 +1632,9 @@ TclpCreateCommandChannel( * unique, in case channels share handles (stdin/stdout). */ - wsprintfA(channelName, "file%lx", infoPtr); + sprintf(channelName, "file%" TCL_I_MODIFIER "x", (size_t) infoPtr); infoPtr->channel = Tcl_CreateChannel(&pipeChannelType, channelName, - (ClientData) infoPtr, infoPtr->validMask); + infoPtr, infoPtr->validMask); /* * Pipes have AUTO translation mode on Windows and ^Z eof char, which @@ -1736,16 +1642,58 @@ TclpCreateCommandChannel( * Windows programs that expect a ^Z at EOF. */ - Tcl_SetChannelOption((Tcl_Interp *) NULL, infoPtr->channel, - "-translation", "auto"); - Tcl_SetChannelOption((Tcl_Interp *) NULL, infoPtr->channel, - "-eofchar", "\032 {}"); + Tcl_SetChannelOption(NULL, infoPtr->channel, "-translation", "auto"); + Tcl_SetChannelOption(NULL, infoPtr->channel, "-eofchar", "\032 {}"); return infoPtr->channel; } /* *---------------------------------------------------------------------- * + * Tcl_CreatePipe -- + * + * System dependent interface to create a pipe for the [chan pipe] + * command. Stolen from TclX. + * + * Results: + * TCL_OK or TCL_ERROR. + * + *---------------------------------------------------------------------- + */ + +int +Tcl_CreatePipe( + Tcl_Interp *interp, /* Errors returned in result.*/ + Tcl_Channel *rchan, /* Where to return the read side. */ + Tcl_Channel *wchan, /* Where to return the write side. */ + int flags) /* Reserved for future use. */ +{ + HANDLE readHandle, writeHandle; + SECURITY_ATTRIBUTES sec; + + sec.nLength = sizeof(SECURITY_ATTRIBUTES); + sec.lpSecurityDescriptor = NULL; + sec.bInheritHandle = FALSE; + + if (!CreatePipe(&readHandle, &writeHandle, &sec, 0)) { + TclWinConvertError(GetLastError()); + Tcl_AppendResult(interp, "pipe creation failed: ", + Tcl_PosixError(interp), NULL); + return TCL_ERROR; + } + + *rchan = Tcl_MakeFileChannel((ClientData) readHandle, TCL_READABLE); + Tcl_RegisterChannel(interp, *rchan); + + *wchan = Tcl_MakeFileChannel((ClientData) writeHandle, TCL_WRITABLE); + Tcl_RegisterChannel(interp, *wchan); + + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * * TclGetAndDetachPids -- * * Stores a list of the command PIDs for a command channel in the @@ -1786,7 +1734,7 @@ TclGetAndDetachPids( Tcl_DetachPids(1, &(pipePtr->pidPtr[i])); } if (pipePtr->numPids > 0) { - ckfree((char *) pipePtr->pidPtr); + ckfree(pipePtr->pidPtr); pipePtr->numPids = 0; } } @@ -2046,12 +1994,11 @@ PipeClose2Proc( */ if (pipePtr->errorFile) { - WinFile *filePtr; + WinFile *filePtr = (WinFile *) pipePtr->errorFile; - filePtr = (WinFile*)pipePtr->errorFile; errChan = Tcl_MakeFileChannel((ClientData) filePtr->handle, TCL_READABLE); - ckfree((char *) filePtr); + ckfree(filePtr); } else { errChan = NULL; } @@ -2061,14 +2008,14 @@ PipeClose2Proc( } if (pipePtr->numPids > 0) { - ckfree((char *) pipePtr->pidPtr); + ckfree(pipePtr->pidPtr); } if (pipePtr->writeBuf != NULL) { ckfree(pipePtr->writeBuf); } - ckfree((char*) pipePtr); + ckfree(pipePtr); if (errorCode == 0) { return result; @@ -2236,7 +2183,7 @@ PipeOutputProc( ckfree(infoPtr->writeBuf); } infoPtr->writeBufLen = toWrite; - infoPtr->writeBuf = ckalloc((unsigned int) toWrite); + infoPtr->writeBuf = ckalloc(toWrite); } memcpy(infoPtr->writeBuf, buf, (size_t) toWrite); infoPtr->toWrite = toWrite; @@ -2618,7 +2565,7 @@ Tcl_WaitPid( */ CloseHandle(infoPtr->hProcess); - ckfree((char*)infoPtr); + ckfree(infoPtr); return result; } @@ -2644,9 +2591,9 @@ Tcl_WaitPid( void TclWinAddProcess( void *hProcess, /* Handle to process */ - unsigned long id) /* Global process identifier */ + unsigned long id) /* Global process identifier */ { - ProcInfo *procPtr = (ProcInfo *) ckalloc(sizeof(ProcInfo)); + ProcInfo *procPtr = ckalloc(sizeof(ProcInfo)); PipeInit(); @@ -3105,6 +3052,100 @@ PipeThreadActionProc( } /* + *---------------------------------------------------------------------- + * + * TclpOpenTemporaryFile -- + * + * Creates a temporary file, possibly based on the supplied bits and + * pieces of template supplied in the first three arguments. If the + * fourth argument is non-NULL, it contains a Tcl_Obj to store the name + * of the temporary file in (and it is caller's responsibility to clean + * up). If the fourth argument is NULL, try to arrange for the temporary + * file to go away once it is no longer needed. + * + * Results: + * A read-write Tcl Channel open on the file. + * + *---------------------------------------------------------------------- + */ + +Tcl_Channel +TclpOpenTemporaryFile( + Tcl_Obj *dirObj, + Tcl_Obj *basenameObj, + Tcl_Obj *extensionObj, + Tcl_Obj *resultingNameObj) +{ + TCHAR name[MAX_PATH]; + char *namePtr; + HANDLE handle; + DWORD flags = FILE_ATTRIBUTE_TEMPORARY; + int length, counter, counter2; + Tcl_DString buf; + + if (!resultingNameObj) { + flags |= FILE_FLAG_DELETE_ON_CLOSE; + } + + namePtr = (char *) name; + length = GetTempPath(MAX_PATH, name); + if (length == 0) { + goto gotError; + } + namePtr += length * sizeof(TCHAR); + if (basenameObj) { + const char *string = Tcl_GetStringFromObj(basenameObj, &length); + + Tcl_WinUtfToTChar(string, length, &buf); + memcpy(namePtr, Tcl_DStringValue(&buf), Tcl_DStringLength(&buf)); + namePtr += Tcl_DStringLength(&buf); + Tcl_DStringFree(&buf); + } else { + TCHAR *baseStr = TEXT("TCL"); + int length = 3 * sizeof(TCHAR); + + memcpy(namePtr, baseStr, length); + namePtr += length; + } + counter = TclpGetClicks() % 65533; + counter2 = 1024; /* Only try this many times! Prevents + * an infinite loop. */ + + do { + char number[TCL_INTEGER_SPACE + 4]; + + sprintf(number, "%d.TMP", counter); + counter = (unsigned short) (counter + 1); + Tcl_WinUtfToTChar(number, strlen(number), &buf); + Tcl_DStringSetLength(&buf, Tcl_DStringLength(&buf) + 1); + memcpy(namePtr, Tcl_DStringValue(&buf), Tcl_DStringLength(&buf) + 1); + Tcl_DStringFree(&buf); + + handle = CreateFile(name, + GENERIC_READ|GENERIC_WRITE, 0, NULL, CREATE_NEW, flags, NULL); + } while (handle == INVALID_HANDLE_VALUE + && --counter2 > 0 + && GetLastError() == ERROR_FILE_EXISTS); + if (handle == INVALID_HANDLE_VALUE) { + goto gotError; + } + + if (resultingNameObj) { + Tcl_Obj *tmpObj = TclpNativeToNormalized(name); + + Tcl_AppendObjToObj(resultingNameObj, tmpObj); + TclDecrRefCount(tmpObj); + } + + return Tcl_MakeFileChannel((ClientData) handle, + TCL_READABLE|TCL_WRITABLE); + + gotError: + TclWinConvertError(GetLastError()); + return NULL; +} + +/* * Local Variables: * mode: c * c-basic-offset: 4 |