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Diffstat (limited to 'tcl/unix/tclUnixTest.c')
| -rw-r--r-- | tcl/unix/tclUnixTest.c | 607 |
1 files changed, 607 insertions, 0 deletions
diff --git a/tcl/unix/tclUnixTest.c b/tcl/unix/tclUnixTest.c new file mode 100644 index 00000000000..d731e5530ee --- /dev/null +++ b/tcl/unix/tclUnixTest.c @@ -0,0 +1,607 @@ +/* + * tclUnixTest.c -- + * + * Contains platform specific test commands for the Unix platform. + * + * Copyright (c) 1996 Sun Microsystems, Inc. + * Copyright (c) 1998 by Scriptics Corporation. + * + * See the file "license.terms" for information on usage and redistribution + * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * + * RCS: @(#) $Id$ + */ + +#include "tclInt.h" +#include "tclPort.h" + +/* + * The headers are needed for the testalarm command that verifies the + * use of SA_RESTART in signal handlers. + */ + +#include <signal.h> +#include <sys/resource.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]; + +/* + * The stuff below is used by the testalarm and testgotsig ommands. + */ + +static char *gotsig = "0"; + +/* + * 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 TestfindexecutableCmd _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)); +static int TestalarmCmd _ANSI_ARGS_((ClientData dummy, + Tcl_Interp *interp, int argc, char **argv)); +static int TestgotsigCmd _ANSI_ARGS_((ClientData dummy, + Tcl_Interp *interp, int argc, char **argv)); +static void AlarmHandler _ANSI_ARGS_(()); + +/* + *---------------------------------------------------------------------- + * + * 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, "testfindexecutable", TestfindexecutableCmd, + (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); + Tcl_CreateCommand(interp, "testgetopenfile", TestgetopenfileCmd, + (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); + Tcl_CreateCommand(interp, "testalarm", TestalarmCmd, + (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); + Tcl_CreateCommand(interp, "testgotsig", TestgotsigCmd, + (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; +} + +/* + *---------------------------------------------------------------------- + * + * TestfindexecutableCmd -- + * + * This procedure implements the "testfindexecutable" command. It is + * used to test Tcl_FindExecutable. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +TestfindexecutableCmd(clientData, interp, argc, argv) + ClientData clientData; /* Not used. */ + Tcl_Interp *interp; /* Current interpreter. */ + int argc; /* Number of arguments. */ + char **argv; /* Argument strings. */ +{ + char *oldName; + + if (argc != 2) { + Tcl_AppendResult(interp, "wrong # arguments: should be \"", argv[0], + " argv0\"", (char *) NULL); + return TCL_ERROR; + } + oldName = tclExecutableName; + tclExecutableName = NULL; + Tcl_FindExecutable(argv[1]); + if (tclExecutableName != NULL) { + Tcl_SetResult(interp, tclExecutableName, TCL_VOLATILE); + ckfree(tclExecutableName); + } + tclExecutableName = oldName; + 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; +} + +/* + *---------------------------------------------------------------------- + * TestalarmCmd -- + * + * Test that EINTR is handled correctly by generating and + * handling a signal. This requires using the SA_RESTART + * flag when registering the signal handler. + * + * Results: + * None. + * + * Side Effects: + * Sets up an signal and async handlers. + * + *---------------------------------------------------------------------- + */ + +static int +TestalarmCmd(clientData, interp, argc, argv) + ClientData clientData; /* Not used. */ + Tcl_Interp *interp; /* Current interpreter. */ + int argc; /* Number of arguments. */ + char **argv; /* Argument strings. */ +{ +#ifdef SA_RESTART + unsigned int sec; + struct sigaction action; + + if (argc > 1) { + Tcl_GetInt(interp, argv[1], (int *)&sec); + } else { + sec = 1; + } + + /* + * Setup the signal handling that automatically retries + * any interupted I/O system calls. + */ + action.sa_handler = AlarmHandler; + memset((void *)&action.sa_mask, 0, sizeof(sigset_t)); + action.sa_flags = SA_RESTART; + + if (sigaction(SIGALRM, &action, NULL) < 0) { + Tcl_AppendResult(interp, "sigaction: ", Tcl_PosixError(interp), NULL); + return TCL_ERROR; + } + if (alarm(sec) < 0) { + Tcl_AppendResult(interp, "alarm: ", Tcl_PosixError(interp), NULL); + return TCL_ERROR; + } + return TCL_OK; +#else + Tcl_AppendResult(interp, "warning: sigaction SA_RESTART not support on this platform", NULL); + return TCL_ERROR; +#endif +} + +/* + *---------------------------------------------------------------------- + * + * AlarmHandler -- + * + * Signal handler for the alarm command. + * + * Results: + * None. + * + * Side effects: + * Calls the Tcl Async handler. + * + *---------------------------------------------------------------------- + */ + +static void +AlarmHandler() +{ + gotsig = "1"; +} + +/* + *---------------------------------------------------------------------- + * TestgotsigCmd -- + * + * Verify the signal was handled after the testalarm command. + * + * Results: + * None. + * + * Side Effects: + * Resets the value of gotsig back to '0'. + * + *---------------------------------------------------------------------- + */ + +static int +TestgotsigCmd(clientData, interp, argc, argv) + ClientData clientData; /* Not used. */ + Tcl_Interp *interp; /* Current interpreter. */ + int argc; /* Number of arguments. */ + char **argv; /* Argument strings. */ +{ + Tcl_AppendResult(interp, gotsig, (char *) NULL); + gotsig = "0"; + return TCL_OK; +} |