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-rw-r--r--win/tclWinPipe.c447
1 files changed, 262 insertions, 185 deletions
diff --git a/win/tclWinPipe.c b/win/tclWinPipe.c
index ee088a5..aff8836 100644
--- a/win/tclWinPipe.c
+++ b/win/tclWinPipe.c
@@ -50,7 +50,7 @@ TCL_DECLARE_MUTEX(pipeMutex)
* used in a pipeline.
*/
-typedef struct WinFile {
+typedef struct {
int type; /* One of the file types defined above. */
HANDLE handle; /* Open file handle. */
} WinFile;
@@ -82,6 +82,12 @@ static ProcInfo *procList;
#define PIPE_EXTRABYTE (1<<3) /* The reader thread has consumed one byte. */
/*
+ * TODO: It appears the whole EXTRABYTE machinery is in place to support
+ * outdated Win 95 systems. If this can be confirmed, much code can be
+ * deleted.
+ */
+
+/*
* This structure describes per-instance data for a pipe based channel.
*/
@@ -142,7 +148,7 @@ typedef struct PipeInfo {
* synchronized with the readable object. */
} PipeInfo;
-typedef struct ThreadSpecificData {
+typedef struct {
/*
* The following pointer refers to the head of the list of pipes that are
* being watched for file events.
@@ -158,7 +164,7 @@ static Tcl_ThreadDataKey dataKey;
* events are generated.
*/
-typedef struct PipeEvent {
+typedef struct {
Tcl_Event header; /* Information that is standard for all
* events. */
PipeInfo *infoPtr; /* Pointer to pipe info structure. Note that
@@ -192,7 +198,7 @@ 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);
@@ -202,7 +208,7 @@ 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. */
@@ -219,7 +225,7 @@ static Tcl_ChannelType pipeChannelType = {
NULL, /* handler proc. */
NULL, /* wide seek proc */
PipeThreadActionProc, /* thread action proc */
- NULL, /* truncate */
+ NULL /* truncate */
};
/*
@@ -404,7 +410,7 @@ 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);
@@ -435,7 +441,7 @@ TclWinMakeFile(
{
WinFile *filePtr;
- filePtr = (WinFile *) ckalloc(sizeof(WinFile));
+ filePtr = ckalloc(sizeof(WinFile));
filePtr->type = WIN_FILE;
filePtr->handle = handle;
@@ -464,27 +470,18 @@ 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) {
+ const 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);
}
/*
@@ -596,7 +593,7 @@ TclpOpenFile(
flags = 0;
if (!(mode & O_CREAT)) {
- flags = (*tclWinProcs->getFileAttributesProc)(nativePath);
+ flags = GetFileAttributes(nativePath);
if (flags == 0xFFFFFFFF) {
flags = 0;
}
@@ -612,8 +609,8 @@ 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) {
@@ -660,7 +657,7 @@ 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;
@@ -669,7 +666,7 @@ 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) {
@@ -731,7 +728,7 @@ TclpCreateTempFile(
TclWinConvertError(GetLastError());
CloseHandle(handle);
- (*tclWinProcs->deleteFileProc)((TCHAR *) name);
+ DeleteFile(name);
return NULL;
}
@@ -754,13 +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);
}
/*
@@ -836,7 +833,7 @@ TclpCloseFile(
if (filePtr->handle != NULL &&
CloseHandle(filePtr->handle) == FALSE) {
TclWinConvertError(GetLastError());
- ckfree((char *) filePtr);
+ ckfree(filePtr);
return -1;
}
}
@@ -846,7 +843,7 @@ TclpCloseFile(
Tcl_Panic("TclpCloseFile: unexpected file type");
}
- ckfree((char *) filePtr);
+ ckfree(filePtr);
return 0;
}
@@ -947,7 +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;
@@ -1037,8 +1034,9 @@ TclpCreateProcess(
}
if (startInfo.hStdInput == INVALID_HANDLE_VALUE) {
TclWinConvertError(GetLastError());
- Tcl_AppendResult(interp, "couldn't duplicate input handle: ",
- Tcl_PosixError(interp), (char *) NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "couldn't duplicate input handle: %s",
+ Tcl_PosixError(interp)));
goto end;
}
@@ -1057,23 +1055,17 @@ TclpCreateProcess(
* sink.
*/
- if ((TclWinGetPlatformId() == VER_PLATFORM_WIN32_WINDOWS)
- && (applType == APPL_DOS)) {
- if (CreatePipe(&h, &startInfo.hStdOutput, &secAtts, 0) != FALSE) {
- CloseHandle(h);
- }
- } else {
- startInfo.hStdOutput = CreateFileA("NUL:", GENERIC_WRITE, 0,
- &secAtts, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
- }
+ startInfo.hStdOutput = CreateFile(TEXT("NUL:"), GENERIC_WRITE, 0,
+ &secAtts, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
} else {
DuplicateHandle(hProcess, outputHandle, hProcess,
&startInfo.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
}
if (startInfo.hStdOutput == INVALID_HANDLE_VALUE) {
TclWinConvertError(GetLastError());
- Tcl_AppendResult(interp, "couldn't duplicate output handle: ",
- Tcl_PosixError(interp), (char *) NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "couldn't duplicate output handle: %s",
+ Tcl_PosixError(interp)));
goto end;
}
@@ -1083,7 +1075,7 @@ TclpCreateProcess(
* sink.
*/
- startInfo.hStdError = CreateFileA("NUL:", GENERIC_WRITE, 0,
+ startInfo.hStdError = CreateFile(TEXT("NUL:"), GENERIC_WRITE, 0,
&secAtts, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
} else {
DuplicateHandle(hProcess, errorHandle, hProcess, &startInfo.hStdError,
@@ -1091,8 +1083,9 @@ TclpCreateProcess(
}
if (startInfo.hStdError == INVALID_HANDLE_VALUE) {
TclWinConvertError(GetLastError());
- Tcl_AppendResult(interp, "couldn't duplicate error handle: ",
- Tcl_PosixError(interp), (char *) NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "couldn't duplicate error handle: %s",
+ Tcl_PosixError(interp)));
goto end;
}
@@ -1124,7 +1117,7 @@ TclpCreateProcess(
startInfo.wShowWindow = SW_HIDE;
startInfo.dwFlags |= STARTF_USESHOWWINDOW;
createFlags = CREATE_NEW_CONSOLE;
- Tcl_DStringAppend(&cmdLine, "cmd.exe /c", -1);
+ TclDStringAppendLiteral(&cmdLine, "cmd.exe /c");
} else {
createFlags = DETACHED_PROCESS;
}
@@ -1136,82 +1129,12 @@ 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_SetObjResult(interp, Tcl_NewStringObj(
+ "DOS application process not supported on this platform",
+ -1));
+ Tcl_SetErrorCode(interp, "TCL", "OPERATION", "EXEC", "DOS_APP",
+ NULL);
+ goto end;
}
}
@@ -1235,12 +1158,12 @@ TclpCreateProcess(
BuildCommandLine(execPath, argc, argv, &cmdLine);
- if ((*tclWinProcs->createProcessProc)(NULL,
- (TCHAR *) Tcl_DStringValue(&cmdLine), NULL, NULL, TRUE,
- (DWORD) createFlags, NULL, NULL, &startInfo, &procInfo) == 0) {
+ if (CreateProcess(NULL, (TCHAR *) Tcl_DStringValue(&cmdLine),
+ NULL, NULL, TRUE, (DWORD) createFlags, NULL, NULL, &startInfo,
+ &procInfo) == 0) {
TclWinConvertError(GetLastError());
- Tcl_AppendResult(interp, "couldn't execute \"", argv[0],
- "\": ", Tcl_PosixError(interp), (char *) NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf("couldn't execute \"%s\": %s",
+ argv[0], Tcl_PosixError(interp)));
goto end;
}
@@ -1368,7 +1291,7 @@ ApplicationType(
IMAGE_DOS_HEADER header;
Tcl_DString nameBuf, ds;
const TCHAR *nativeName;
- WCHAR nativeFullPath[MAX_PATH];
+ TCHAR nativeFullPath[MAX_PATH];
static const char extensions[][5] = {"", ".com", ".exe", ".bat"};
/*
@@ -1394,8 +1317,8 @@ 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;
@@ -1406,11 +1329,11 @@ 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, '.');
@@ -1419,7 +1342,7 @@ 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) {
@@ -1486,8 +1409,8 @@ ApplicationType(
if (applType == APPL_NONE) {
TclWinConvertError(GetLastError());
- Tcl_AppendResult(interp, "couldn't execute \"", originalName,
- "\": ", Tcl_PosixError(interp), (char *) NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf("couldn't execute \"%s\": %s",
+ originalName, Tcl_PosixError(interp)));
return APPL_NONE;
}
@@ -1499,9 +1422,8 @@ 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;
@@ -1545,9 +1467,9 @@ BuildCommandLine(
* Prime the path. Add a space separator if we were primed with something.
*/
- Tcl_DStringAppend(&ds, Tcl_DStringValue(linePtr), -1);
+ TclDStringAppendDString(&ds, linePtr);
if (Tcl_DStringLength(linePtr) > 0) {
- Tcl_DStringAppend(&ds, " ", 1);
+ TclDStringAppendLiteral(&ds, " ");
}
for (i = 0; i < argc; i++) {
@@ -1555,7 +1477,7 @@ BuildCommandLine(
arg = executable;
} else {
arg = argv[i];
- Tcl_DStringAppend(&ds, " ", 1);
+ TclDStringAppendLiteral(&ds, " ");
}
quote = 0;
@@ -1564,6 +1486,7 @@ 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. */
@@ -1573,7 +1496,7 @@ BuildCommandLine(
}
}
if (quote) {
- Tcl_DStringAppend(&ds, "\"", 1);
+ TclDStringAppendLiteral(&ds, "\"");
}
start = arg;
for (special = arg; ; ) {
@@ -1602,7 +1525,7 @@ BuildCommandLine(
}
if (*special == '"') {
Tcl_DStringAppend(&ds, start, (int) (special - start));
- Tcl_DStringAppend(&ds, "\\\"", 2);
+ TclDStringAppendLiteral(&ds, "\\\"");
start = special + 1;
}
if (*special == '\0') {
@@ -1612,7 +1535,7 @@ BuildCommandLine(
}
Tcl_DStringAppend(&ds, start, (int) (special - start));
if (quote) {
- Tcl_DStringAppend(&ds, "\"", 1);
+ TclDStringAppendLiteral(&ds, "\"");
}
}
Tcl_DStringFree(linePtr);
@@ -1648,7 +1571,7 @@ TclpCreateCommandChannel(
{
char channelName[16 + TCL_INTEGER_SPACE];
DWORD id;
- PipeInfo *infoPtr = (PipeInfo *) ckalloc((unsigned) sizeof(PipeInfo));
+ PipeInfo *infoPtr = ckalloc(sizeof(PipeInfo));
PipeInit();
@@ -1663,7 +1586,7 @@ TclpCreateCommandChannel(
infoPtr->writeBuf = 0;
infoPtr->writeBufLen = 0;
infoPtr->writeError = 0;
- infoPtr->channel = (Tcl_Channel) NULL;
+ infoPtr->channel = NULL;
infoPtr->validMask = 0;
@@ -1705,9 +1628,9 @@ TclpCreateCommandChannel(
* unique, in case channels share handles (stdin/stdout).
*/
- sprintf(channelName, "file%" TCL_I_MODIFIER "x", (size_t)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
@@ -1715,16 +1638,58 @@ 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_SetObjResult(interp, Tcl_ObjPrintf(
+ "pipe creation failed: %s", Tcl_PosixError(interp)));
+ 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
@@ -1746,8 +1711,8 @@ TclGetAndDetachPids(
{
PipeInfo *pipePtr;
const Tcl_ChannelType *chanTypePtr;
+ Tcl_Obj *pidsObj;
int i;
- char buf[TCL_INTEGER_SPACE];
/*
* Punt if the channel is not a command channel.
@@ -1758,14 +1723,17 @@ TclGetAndDetachPids(
return;
}
- pipePtr = (PipeInfo *) Tcl_GetChannelInstanceData(chan);
+ pipePtr = Tcl_GetChannelInstanceData(chan);
+ TclNewObj(pidsObj);
for (i = 0; i < pipePtr->numPids; i++) {
- wsprintfA(buf, "%lu", TclpGetPid(pipePtr->pidPtr[i]));
- Tcl_AppendElement(interp, buf);
- Tcl_DetachPids(1, &(pipePtr->pidPtr[i]));
+ Tcl_ListObjAppendElement(NULL, pidsObj,
+ Tcl_NewWideIntObj((unsigned)
+ TclpGetPid(pipePtr->pidPtr[i])));
+ Tcl_DetachPids(1, &pipePtr->pidPtr[i]);
}
+ Tcl_SetObjResult(interp, pidsObj);
if (pipePtr->numPids > 0) {
- ckfree((char *) pipePtr->pidPtr);
+ ckfree(pipePtr->pidPtr);
pipePtr->numPids = 0;
}
}
@@ -1910,12 +1878,26 @@ PipeClose2Proc(
&& (pipePtr->writeFile != NULL)) {
if (pipePtr->writeThread) {
/*
- * Wait for the writer thread to finish the current buffer, then
- * terminate the thread and close the handles. If the channel is
- * nonblocking, there should be no pending write operations.
+ * Wait for the writer thread to finish the current buffer, then
+ * terminate the thread and close the handles. If the channel is
+ * nonblocking but blocked during exit, bail out since the worker
+ * thread is not interruptible and we want TIP#398-fast-exit.
*/
+ if (TclInExit()
+ && (pipePtr->flags & PIPE_ASYNC)) {
+
+ /* give it a chance to leave honorably */
+ SetEvent(pipePtr->stopWriter);
+
+ if (WaitForSingleObject(pipePtr->writable, 0) == WAIT_TIMEOUT) {
+ return EWOULDBLOCK;
+ }
+
+ } else {
+
+ WaitForSingleObject(pipePtr->writable, INFINITE);
- WaitForSingleObject(pipePtr->writable, INFINITE);
+ }
/*
* The thread may already have closed on it's own. Check its exit
@@ -2025,12 +2007,11 @@ 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;
}
@@ -2040,14 +2021,14 @@ 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;
@@ -2186,7 +2167,7 @@ PipeOutputProc(
* the channel is in non-blocking mode.
*/
- errno = EAGAIN;
+ errno = EWOULDBLOCK;
goto error;
}
@@ -2215,7 +2196,7 @@ 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;
@@ -2594,7 +2575,7 @@ Tcl_WaitPid(
*/
CloseHandle(infoPtr->hProcess);
- ckfree((char*)infoPtr);
+ ckfree(infoPtr);
return result;
}
@@ -2620,9 +2601,9 @@ 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();
@@ -2664,17 +2645,15 @@ Tcl_PidObjCmd(
PipeInfo *pipePtr;
int i;
Tcl_Obj *resultPtr;
- char buf[TCL_INTEGER_SPACE];
if (objc > 2) {
Tcl_WrongNumArgs(interp, 1, objv, "?channelId?");
return TCL_ERROR;
}
if (objc == 1) {
- wsprintfA(buf, "%lu", (unsigned long) getpid());
- Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, -1));
+ Tcl_SetObjResult(interp, Tcl_NewWideIntObj((unsigned) getpid()));
} else {
- chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL),
+ chan = Tcl_GetChannel(interp, Tcl_GetString(objv[1]),
NULL);
if (chan == (Tcl_Channel) NULL) {
return TCL_ERROR;
@@ -2687,9 +2666,9 @@ Tcl_PidObjCmd(
pipePtr = (PipeInfo *) Tcl_GetChannelInstanceData(chan);
resultPtr = Tcl_NewObj();
for (i = 0; i < pipePtr->numPids; i++) {
- wsprintfA(buf, "%lu", TclpGetPid(pipePtr->pidPtr[i]));
Tcl_ListObjAppendElement(/*interp*/ NULL, resultPtr,
- Tcl_NewStringObj(buf, -1));
+ Tcl_NewWideIntObj((unsigned)
+ TclpGetPid(pipePtr->pidPtr[i])));
}
Tcl_SetObjResult(interp, resultPtr);
}
@@ -2739,7 +2718,7 @@ WaitForRead(
* is in non-blocking mode.
*/
- errno = EAGAIN;
+ errno = EWOULDBLOCK;
return -1;
}
@@ -2981,6 +2960,10 @@ PipeWriterThread(
* an error, so exit.
*/
+ if (waitResult == WAIT_OBJECT_0) {
+ SetEvent(infoPtr->writable);
+ }
+
break;
}
@@ -3081,6 +3064,100 @@ 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_GetString(basenameObj);
+
+ Tcl_WinUtfToTChar(string, basenameObj->length, &buf);
+ memcpy(namePtr, Tcl_DStringValue(&buf), Tcl_DStringLength(&buf));
+ namePtr += Tcl_DStringLength(&buf);
+ Tcl_DStringFree(&buf);
+ } else {
+ const 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
generated by cgit v0.12 at 2024-11-25 06:29:14 (GMT)