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+/*
+ * tclUnixTest.c --
+ *
+ * Contains platform specific test commands for the Unix platform.
+ *
+ * Copyright (c) 1996 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * SCCS: @(#) tclUnixTest.c 1.5 97/10/31 17:23:42
+ */
+
+#include "tclInt.h"
+#include "tclPort.h"
+
+/*
+ * The following macros convert between TclFile's and fd's. The conversion
+ * simple involves shifting fd's up by one to ensure that no valid fd is ever
+ * the same as NULL. Note that this code is duplicated from tclUnixPipe.c
+ */
+
+#define MakeFile(fd) ((TclFile)((fd)+1))
+#define GetFd(file) (((int)file)-1)
+
+/*
+ * The stuff below is used to keep track of file handlers created and
+ * exercised by the "testfilehandler" command.
+ */
+
+typedef struct Pipe {
+ TclFile readFile; /* File handle for reading from the
+ * pipe. NULL means pipe doesn't exist yet. */
+ TclFile writeFile; /* File handle for writing from the
+ * pipe. */
+ int readCount; /* Number of times the file handler for
+ * this file has triggered and the file
+ * was readable. */
+ int writeCount; /* Number of times the file handler for
+ * this file has triggered and the file
+ * was writable. */
+} Pipe;
+
+#define MAX_PIPES 10
+static Pipe testPipes[MAX_PIPES];
+
+/*
+ * Forward declarations of procedures defined later in this file:
+ */
+
+static void TestFileHandlerProc _ANSI_ARGS_((ClientData clientData,
+ int mask));
+static int TestfilehandlerCmd _ANSI_ARGS_((ClientData dummy,
+ Tcl_Interp *interp, int argc, char **argv));
+static int TestfilewaitCmd _ANSI_ARGS_((ClientData dummy,
+ Tcl_Interp *interp, int argc, char **argv));
+static int TestgetopenfileCmd _ANSI_ARGS_((ClientData dummy,
+ Tcl_Interp *interp, int argc, char **argv));
+int TclplatformtestInit _ANSI_ARGS_((Tcl_Interp *interp));
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclplatformtestInit --
+ *
+ * Defines commands that test platform specific functionality for
+ * Unix platforms.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * Defines new commands.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclplatformtestInit(interp)
+ Tcl_Interp *interp; /* Interpreter to add commands to. */
+{
+ Tcl_CreateCommand(interp, "testfilehandler", TestfilehandlerCmd,
+ (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
+ Tcl_CreateCommand(interp, "testfilewait", TestfilewaitCmd,
+ (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
+ Tcl_CreateCommand(interp, "testgetopenfile", TestgetopenfileCmd,
+ (ClientData) 0, (Tcl_CmdDeleteProc *) NULL);
+ return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TestfilehandlerCmd --
+ *
+ * This procedure implements the "testfilehandler" command. It is
+ * used to test Tcl_CreateFileHandler, Tcl_DeleteFileHandler, and
+ * TclWaitForFile.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+TestfilehandlerCmd(clientData, interp, argc, argv)
+ ClientData clientData; /* Not used. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int argc; /* Number of arguments. */
+ char **argv; /* Argument strings. */
+{
+ Pipe *pipePtr;
+ int i, mask, timeout;
+ static int initialized = 0;
+ char buffer[4000];
+ TclFile file;
+
+ /*
+ * NOTE: When we make this code work on Windows also, the following
+ * variable needs to be made Unix-only.
+ */
+
+ if (!initialized) {
+ for (i = 0; i < MAX_PIPES; i++) {
+ testPipes[i].readFile = NULL;
+ }
+ initialized = 1;
+ }
+
+ if (argc < 2) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"", argv[0],
+ " option ... \"", (char *) NULL);
+ return TCL_ERROR;
+ }
+ pipePtr = NULL;
+ if (argc >= 3) {
+ if (Tcl_GetInt(interp, argv[2], &i) != TCL_OK) {
+ return TCL_ERROR;
+ }
+ if (i >= MAX_PIPES) {
+ Tcl_AppendResult(interp, "bad index ", argv[2], (char *) NULL);
+ return TCL_ERROR;
+ }
+ pipePtr = &testPipes[i];
+ }
+
+ if (strcmp(argv[1], "close") == 0) {
+ for (i = 0; i < MAX_PIPES; i++) {
+ if (testPipes[i].readFile != NULL) {
+ TclpCloseFile(testPipes[i].readFile);
+ testPipes[i].readFile = NULL;
+ TclpCloseFile(testPipes[i].writeFile);
+ testPipes[i].writeFile = NULL;
+ }
+ }
+ } else if (strcmp(argv[1], "clear") == 0) {
+ if (argc != 3) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"",
+ argv[0], " clear index\"", (char *) NULL);
+ return TCL_ERROR;
+ }
+ pipePtr->readCount = pipePtr->writeCount = 0;
+ } else if (strcmp(argv[1], "counts") == 0) {
+ char buf[30];
+
+ if (argc != 3) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"",
+ argv[0], " counts index\"", (char *) NULL);
+ return TCL_ERROR;
+ }
+ sprintf(buf, "%d %d", pipePtr->readCount, pipePtr->writeCount);
+ Tcl_SetResult(interp, buf, TCL_VOLATILE);
+ } else if (strcmp(argv[1], "create") == 0) {
+ if (argc != 5) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"",
+ argv[0], " create index readMode writeMode\"",
+ (char *) NULL);
+ return TCL_ERROR;
+ }
+ if (pipePtr->readFile == NULL) {
+ if (!TclpCreatePipe(&pipePtr->readFile, &pipePtr->writeFile)) {
+ Tcl_AppendResult(interp, "couldn't open pipe: ",
+ Tcl_PosixError(interp), (char *) NULL);
+ return TCL_ERROR;
+ }
+#ifdef O_NONBLOCK
+ fcntl(GetFd(pipePtr->readFile), F_SETFL, O_NONBLOCK);
+ fcntl(GetFd(pipePtr->writeFile), F_SETFL, O_NONBLOCK);
+#else
+ Tcl_SetResult(interp, "can't make pipes non-blocking",
+ TCL_STATIC);
+ return TCL_ERROR;
+#endif
+ }
+ pipePtr->readCount = 0;
+ pipePtr->writeCount = 0;
+
+ if (strcmp(argv[3], "readable") == 0) {
+ Tcl_CreateFileHandler(GetFd(pipePtr->readFile), TCL_READABLE,
+ TestFileHandlerProc, (ClientData) pipePtr);
+ } else if (strcmp(argv[3], "off") == 0) {
+ Tcl_DeleteFileHandler(GetFd(pipePtr->readFile));
+ } else if (strcmp(argv[3], "disabled") == 0) {
+ Tcl_CreateFileHandler(GetFd(pipePtr->readFile), 0,
+ TestFileHandlerProc, (ClientData) pipePtr);
+ } else {
+ Tcl_AppendResult(interp, "bad read mode \"", argv[3], "\"",
+ (char *) NULL);
+ return TCL_ERROR;
+ }
+ if (strcmp(argv[4], "writable") == 0) {
+ Tcl_CreateFileHandler(GetFd(pipePtr->writeFile), TCL_WRITABLE,
+ TestFileHandlerProc, (ClientData) pipePtr);
+ } else if (strcmp(argv[4], "off") == 0) {
+ Tcl_DeleteFileHandler(GetFd(pipePtr->writeFile));
+ } else if (strcmp(argv[4], "disabled") == 0) {
+ Tcl_CreateFileHandler(GetFd(pipePtr->writeFile), 0,
+ TestFileHandlerProc, (ClientData) pipePtr);
+ } else {
+ Tcl_AppendResult(interp, "bad read mode \"", argv[4], "\"",
+ (char *) NULL);
+ return TCL_ERROR;
+ }
+ } else if (strcmp(argv[1], "empty") == 0) {
+ if (argc != 3) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"",
+ argv[0], " empty index\"", (char *) NULL);
+ return TCL_ERROR;
+ }
+
+ while (read(GetFd(pipePtr->readFile), buffer, 4000) > 0) {
+ /* Empty loop body. */
+ }
+ } else if (strcmp(argv[1], "fill") == 0) {
+ if (argc != 3) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"",
+ argv[0], " empty index\"", (char *) NULL);
+ return TCL_ERROR;
+ }
+
+ memset((VOID *) buffer, 'a', 4000);
+ while (write(GetFd(pipePtr->writeFile), buffer, 4000) > 0) {
+ /* Empty loop body. */
+ }
+ } else if (strcmp(argv[1], "fillpartial") == 0) {
+ char buf[30];
+
+ if (argc != 3) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"",
+ argv[0], " empty index\"", (char *) NULL);
+ return TCL_ERROR;
+ }
+
+ memset((VOID *) buffer, 'b', 10);
+ sprintf(buf, "%d", write(GetFd(pipePtr->writeFile), buffer, 10));
+ Tcl_SetResult(interp, buf, TCL_VOLATILE);
+ } else if (strcmp(argv[1], "oneevent") == 0) {
+ Tcl_DoOneEvent(TCL_FILE_EVENTS|TCL_DONT_WAIT);
+ } else if (strcmp(argv[1], "wait") == 0) {
+ if (argc != 5) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"",
+ argv[0], " wait index readable/writable timeout\"",
+ (char *) NULL);
+ return TCL_ERROR;
+ }
+ if (pipePtr->readFile == NULL) {
+ Tcl_AppendResult(interp, "pipe ", argv[2], " doesn't exist",
+ (char *) NULL);
+ return TCL_ERROR;
+ }
+ if (strcmp(argv[3], "readable") == 0) {
+ mask = TCL_READABLE;
+ file = pipePtr->readFile;
+ } else {
+ mask = TCL_WRITABLE;
+ file = pipePtr->writeFile;
+ }
+ if (Tcl_GetInt(interp, argv[4], &timeout) != TCL_OK) {
+ return TCL_ERROR;
+ }
+ i = TclUnixWaitForFile(GetFd(file), mask, timeout);
+ if (i & TCL_READABLE) {
+ Tcl_AppendElement(interp, "readable");
+ }
+ if (i & TCL_WRITABLE) {
+ Tcl_AppendElement(interp, "writable");
+ }
+ } else if (strcmp(argv[1], "windowevent") == 0) {
+ Tcl_DoOneEvent(TCL_WINDOW_EVENTS|TCL_DONT_WAIT);
+ } else {
+ Tcl_AppendResult(interp, "bad option \"", argv[1],
+ "\": must be close, clear, counts, create, empty, fill, ",
+ "fillpartial, oneevent, wait, or windowevent",
+ (char *) NULL);
+ return TCL_ERROR;
+ }
+ return TCL_OK;
+}
+
+static void TestFileHandlerProc(clientData, mask)
+ ClientData clientData; /* Points to a Pipe structure. */
+ int mask; /* Indicates which events happened:
+ * TCL_READABLE or TCL_WRITABLE. */
+{
+ Pipe *pipePtr = (Pipe *) clientData;
+
+ if (mask & TCL_READABLE) {
+ pipePtr->readCount++;
+ }
+ if (mask & TCL_WRITABLE) {
+ pipePtr->writeCount++;
+ }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TestfilewaitCmd --
+ *
+ * This procedure implements the "testfilewait" command. It is
+ * used to test TclUnixWaitForFile.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+TestfilewaitCmd(clientData, interp, argc, argv)
+ ClientData clientData; /* Not used. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int argc; /* Number of arguments. */
+ char **argv; /* Argument strings. */
+{
+ int mask, result, timeout;
+ Tcl_Channel channel;
+ int fd;
+ ClientData data;
+
+ if (argc != 4) {
+ Tcl_AppendResult(interp, "wrong # arguments: should be \"", argv[0],
+ " file readable|writable|both timeout\"", (char *) NULL);
+ return TCL_ERROR;
+ }
+ channel = Tcl_GetChannel(interp, argv[1], NULL);
+ if (channel == NULL) {
+ return TCL_ERROR;
+ }
+ if (strcmp(argv[2], "readable") == 0) {
+ mask = TCL_READABLE;
+ } else if (strcmp(argv[2], "writable") == 0){
+ mask = TCL_WRITABLE;
+ } else if (strcmp(argv[2], "both") == 0){
+ mask = TCL_WRITABLE|TCL_READABLE;
+ } else {
+ Tcl_AppendResult(interp, "bad argument \"", argv[2],
+ "\": must be readable, writable, or both", (char *) NULL);
+ return TCL_ERROR;
+ }
+ if (Tcl_GetChannelHandle(channel,
+ (mask & TCL_READABLE) ? TCL_READABLE : TCL_WRITABLE,
+ (ClientData*) &data) != TCL_OK) {
+ Tcl_SetResult(interp, "couldn't get channel file", TCL_STATIC);
+ return TCL_ERROR;
+ }
+ fd = (int) data;
+ if (Tcl_GetInt(interp, argv[3], &timeout) != TCL_OK) {
+ return TCL_ERROR;
+ }
+ result = TclUnixWaitForFile(fd, mask, timeout);
+ if (result & TCL_READABLE) {
+ Tcl_AppendElement(interp, "readable");
+ }
+ if (result & TCL_WRITABLE) {
+ Tcl_AppendElement(interp, "writable");
+ }
+ return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TestgetopenfileCmd --
+ *
+ * This procedure implements the "testgetopenfile" command. It is
+ * used to get a FILE * value from a registered channel.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+TestgetopenfileCmd(clientData, interp, argc, argv)
+ ClientData clientData; /* Not used. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int argc; /* Number of arguments. */
+ char **argv; /* Argument strings. */
+{
+ ClientData filePtr;
+
+ if (argc != 3) {
+ Tcl_AppendResult(interp,
+ "wrong # args: should be \"", argv[0],
+ " channelName forWriting\"",
+ (char *) NULL);
+ return TCL_ERROR;
+ }
+ if (Tcl_GetOpenFile(interp, argv[1], atoi(argv[2]), 1, &filePtr)
+ == TCL_ERROR) {
+ return TCL_ERROR;
+ }
+ if (filePtr == (ClientData) NULL) {
+ Tcl_AppendResult(interp,
+ "Tcl_GetOpenFile succeeded but FILE * NULL!", (char *) NULL);
+ return TCL_ERROR;
+ }
+ return TCL_OK;
+}