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Diffstat (limited to 'unix/tclUnixTest.c')
| -rw-r--r-- | unix/tclUnixTest.c | 786 |
1 files changed, 786 insertions, 0 deletions
diff --git a/unix/tclUnixTest.c b/unix/tclUnixTest.c new file mode 100644 index 0000000..4b0f369 --- /dev/null +++ b/unix/tclUnixTest.c @@ -0,0 +1,786 @@ +/* + * tclUnixTest.c -- + * + * Contains platform specific test commands for the Unix platform. + * + * Copyright (c) 1996-1997 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. + */ + +#ifndef USE_TCL_STUBS +# define USE_TCL_STUBS +#endif +#include "tclInt.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)INT2PTR(((int)(fd))+1)) +#define GetFd(file) (PTR2INT(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 const char *gotsig = "0"; + +/* + * Forward declarations of functions defined later in this file: + */ + +static Tcl_CmdProc TestalarmCmd; +static Tcl_CmdProc TestchmodCmd; +static Tcl_CmdProc TestfilehandlerCmd; +static Tcl_CmdProc TestfilewaitCmd; +static Tcl_CmdProc TestfindexecutableCmd; +static Tcl_ObjCmdProc TestforkObjCmd; +static Tcl_CmdProc TestgetdefencdirCmd; +static Tcl_CmdProc TestgetopenfileCmd; +static Tcl_CmdProc TestgotsigCmd; +static Tcl_CmdProc TestsetdefencdirCmd; +static Tcl_FileProc TestFileHandlerProc; +static void AlarmHandler(int signum); + +/* + *---------------------------------------------------------------------- + * + * TclplatformtestInit -- + * + * Defines commands that test platform specific functionality for Unix + * platforms. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * Defines new commands. + * + *---------------------------------------------------------------------- + */ + +int +TclplatformtestInit( + Tcl_Interp *interp) /* Interpreter to add commands to. */ +{ + Tcl_CreateCommand(interp, "testchmod", TestchmodCmd, + NULL, NULL); + Tcl_CreateCommand(interp, "testfilehandler", TestfilehandlerCmd, + NULL, NULL); + Tcl_CreateCommand(interp, "testfilewait", TestfilewaitCmd, + NULL, NULL); + Tcl_CreateCommand(interp, "testfindexecutable", TestfindexecutableCmd, + NULL, NULL); + Tcl_CreateObjCommand(interp, "testfork", TestforkObjCmd, + NULL, NULL); + Tcl_CreateCommand(interp, "testgetopenfile", TestgetopenfileCmd, + NULL, NULL); + Tcl_CreateCommand(interp, "testgetdefenc", TestgetdefencdirCmd, + NULL, NULL); + Tcl_CreateCommand(interp, "testsetdefenc", TestsetdefencdirCmd, + NULL, NULL); + Tcl_CreateCommand(interp, "testalarm", TestalarmCmd, + NULL, NULL); + Tcl_CreateCommand(interp, "testgotsig", TestgotsigCmd, + NULL, NULL); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * TestfilehandlerCmd -- + * + * This function 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 clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const 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 ... \"", 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], 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\"", NULL); + return TCL_ERROR; + } + pipePtr->readCount = pipePtr->writeCount = 0; + } else if (strcmp(argv[1], "counts") == 0) { + char buf[TCL_INTEGER_SPACE * 2]; + + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # arguments: should be \"", + argv[0], " counts index\"", NULL); + return TCL_ERROR; + } + sprintf(buf, "%d %d", pipePtr->readCount, pipePtr->writeCount); + Tcl_AppendResult(interp, buf, NULL); + } else if (strcmp(argv[1], "create") == 0) { + if (argc != 5) { + Tcl_AppendResult(interp, "wrong # arguments: should be \"", + argv[0], " create index readMode writeMode\"", NULL); + return TCL_ERROR; + } + if (pipePtr->readFile == NULL) { + if (!TclpCreatePipe(&pipePtr->readFile, &pipePtr->writeFile)) { + Tcl_AppendResult(interp, "couldn't open pipe: ", + Tcl_PosixError(interp), 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_AppendResult(interp, "can't make pipes non-blocking", + NULL); + return TCL_ERROR; +#endif + } + pipePtr->readCount = 0; + pipePtr->writeCount = 0; + + if (strcmp(argv[3], "readable") == 0) { + Tcl_CreateFileHandler(GetFd(pipePtr->readFile), TCL_READABLE, + TestFileHandlerProc, 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, pipePtr); + } else { + Tcl_AppendResult(interp, "bad read mode \"", argv[3], "\"", NULL); + return TCL_ERROR; + } + if (strcmp(argv[4], "writable") == 0) { + Tcl_CreateFileHandler(GetFd(pipePtr->writeFile), TCL_WRITABLE, + TestFileHandlerProc, 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, pipePtr); + } else { + Tcl_AppendResult(interp, "bad read mode \"", argv[4], "\"", 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\"", 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], " fill index\"", NULL); + return TCL_ERROR; + } + + memset(buffer, 'a', 4000); + while (write(GetFd(pipePtr->writeFile), buffer, 4000) > 0) { + /* Empty loop body. */ + } + } else if (strcmp(argv[1], "fillpartial") == 0) { + char buf[TCL_INTEGER_SPACE]; + + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # arguments: should be \"", + argv[0], " fillpartial index\"", NULL); + return TCL_ERROR; + } + + memset(buffer, 'b', 10); + TclFormatInt(buf, write(GetFd(pipePtr->writeFile), buffer, 10)); + Tcl_AppendResult(interp, buf, NULL); + } 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\"", NULL); + return TCL_ERROR; + } + if (pipePtr->readFile == NULL) { + Tcl_AppendResult(interp, "pipe ", argv[2], " doesn't exist", 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", NULL); + return TCL_ERROR; + } + return TCL_OK; +} + +static void +TestFileHandlerProc( + ClientData clientData, /* Points to a Pipe structure. */ + int mask) /* Indicates which events happened: + * TCL_READABLE or TCL_WRITABLE. */ +{ + Pipe *pipePtr = clientData; + + if (mask & TCL_READABLE) { + pipePtr->readCount++; + } + if (mask & TCL_WRITABLE) { + pipePtr->writeCount++; + } +} + +/* + *---------------------------------------------------------------------- + * + * TestfilewaitCmd -- + * + * This function implements the "testfilewait" command. It is used to + * test TclUnixWaitForFile. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +TestfilewaitCmd( + ClientData clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const 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\"", 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", NULL); + return TCL_ERROR; + } + if (Tcl_GetChannelHandle(channel, + (mask & TCL_READABLE) ? TCL_READABLE : TCL_WRITABLE, + (ClientData*) &data) != TCL_OK) { + Tcl_AppendResult(interp, "couldn't get channel file", NULL); + return TCL_ERROR; + } + fd = PTR2INT(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 function implements the "testfindexecutable" command. It is used + * to test TclpFindExecutable. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +TestfindexecutableCmd( + ClientData clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const char **argv) /* Argument strings. */ +{ + Tcl_Obj *saveName; + + if (argc != 2) { + Tcl_AppendResult(interp, "wrong # arguments: should be \"", argv[0], + " argv0\"", NULL); + return TCL_ERROR; + } + + saveName = TclGetObjNameOfExecutable(); + Tcl_IncrRefCount(saveName); + + TclpFindExecutable(argv[1]); + Tcl_SetObjResult(interp, TclGetObjNameOfExecutable()); + + TclSetObjNameOfExecutable(saveName, NULL); + Tcl_DecrRefCount(saveName); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * TestgetopenfileCmd -- + * + * This function 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 clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const char **argv) /* Argument strings. */ +{ + ClientData filePtr; + + if (argc != 3) { + Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], + " channelName forWriting\"", NULL); + return TCL_ERROR; + } + if (Tcl_GetOpenFile(interp, argv[1], atoi(argv[2]), 1, &filePtr) + == TCL_ERROR) { + return TCL_ERROR; + } + if (filePtr == NULL) { + Tcl_AppendResult(interp, + "Tcl_GetOpenFile succeeded but FILE * NULL!", NULL); + return TCL_ERROR; + } + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * TestsetdefencdirCmd -- + * + * This function implements the "testsetdefenc" command. It is used to + * test Tcl_SetDefaultEncodingDir(). + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +TestsetdefencdirCmd( + ClientData clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const char **argv) /* Argument strings. */ +{ + if (argc != 2) { + Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], + " defaultDir\"", NULL); + return TCL_ERROR; + } + + Tcl_SetDefaultEncodingDir(argv[1]); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * TestforkObjCmd -- + * + * This function implements the "testfork" command. It is used to + * fork the Tcl process for specific test cases. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +TestforkObjCmd( + ClientData clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const *objv) /* Argument strings. */ +{ + pid_t pid; + + if (objc != 1) { + Tcl_WrongNumArgs(interp, 1, objv, ""); + return TCL_ERROR; + } + pid = fork(); + if (pid == -1) { + Tcl_AppendResult(interp, + "Cannot fork", NULL); + return TCL_ERROR; + } + /* Only needed when pthread_atfork is not present, + * should not hurt otherwise. */ + if (pid==0) { + Tcl_InitNotifier(); + } + Tcl_SetObjResult(interp, Tcl_NewIntObj(pid)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * TestgetdefencdirCmd -- + * + * This function implements the "testgetdefenc" command. It is used to + * test Tcl_GetDefaultEncodingDir(). + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +TestgetdefencdirCmd( + ClientData clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const char **argv) /* Argument strings. */ +{ + if (argc != 1) { + Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], NULL); + return TCL_ERROR; + } + + Tcl_AppendResult(interp, Tcl_GetDefaultEncodingDir(), NULL); + 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 clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const 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 interrupted + * 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; + } + (void) alarm(sec); + 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( + int signum) +{ + 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 clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const char **argv) /* Argument strings. */ +{ + Tcl_AppendResult(interp, gotsig, NULL); + gotsig = "0"; + return TCL_OK; +} + +/* + *--------------------------------------------------------------------------- + * + * TestchmodCmd -- + * + * Implements the "testchmod" cmd. Used when testing "file" command. + * The only attribute used by the Windows platform is the user write + * flag; if this is not set, the file is made read-only. Otehrwise, the + * file is made read-write. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * Changes permissions of specified files. + * + *--------------------------------------------------------------------------- + */ + +static int +TestchmodCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const char **argv) /* Argument strings. */ +{ + int i, mode; + char *rest; + + if (argc < 2) { + usage: + Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], + " mode file ?file ...?", NULL); + return TCL_ERROR; + } + + mode = (int) strtol(argv[1], &rest, 8); + if ((rest == argv[1]) || (*rest != '\0')) { + goto usage; + } + + for (i = 2; i < argc; i++) { + Tcl_DString buffer; + const char *translated; + + translated = Tcl_TranslateFileName(interp, argv[i], &buffer); + if (translated == NULL) { + return TCL_ERROR; + } + if (chmod(translated, (unsigned) mode) != 0) { + Tcl_AppendResult(interp, translated, ": ", Tcl_PosixError(interp), + NULL); + return TCL_ERROR; + } + Tcl_DStringFree(&buffer); + } + return TCL_OK; +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * tab-width: 8 + * End: + */ |