diff options
Diffstat (limited to 'unix')
| -rw-r--r-- | unix/tclUnixChan.c | 76 |
1 files changed, 25 insertions, 51 deletions
diff --git a/unix/tclUnixChan.c b/unix/tclUnixChan.c index 4c1cb05..3079c7e 100644 --- a/unix/tclUnixChan.c +++ b/unix/tclUnixChan.c @@ -73,16 +73,6 @@ typedef struct FileState { #ifdef SUPPORTS_TTY /* - * The following structure describes per-instance state of a tty-based - * channel. - */ - -typedef struct TtyState { - FileState fs; /* Per-instance state of the file descriptor. - * Must be the first field. */ -} TtyState; - -/* * The following structure is used to set or get the serial port attributes in * a platform-independant manner. */ @@ -130,7 +120,7 @@ static int TtyGetOptionProc(ClientData instanceData, Tcl_DString *dsPtr); static int TtyGetBaud(speed_t speed); static speed_t TtyGetSpeed(int baud); -static FileState * TtyInit(int fd, int initialize); +static void TtyInit(int fd); static void TtyModemStatusStr(int status, Tcl_DString *dsPtr); static int TtyParseMode(Tcl_Interp *interp, const char *mode, TtyAttrs *ttyPtr); @@ -1282,53 +1272,38 @@ TtyParseMode( * * Given file descriptor that refers to a serial port, initialize the * serial port to a set of sane values so that Tcl can talk to a device - * located on the serial port. Note that no initialization happens if the - * initialize flag is not set; this is necessary for the correct handling - * of UNIX console TTYs at startup. - * - * Results: - * A pointer to a FileState suitable for use with Tcl_CreateChannel and - * the ttyChannelType structure. + * located on the serial port. * * Side effects: * Serial device initialized to non-blocking raw mode, similar to sockets - * (if initialize flag is non-zero.) All other modes can be simulated on - * top of this in Tcl. + * All other modes can be simulated on top of this in Tcl. * *--------------------------------------------------------------------------- */ -static FileState * +static void TtyInit( - int fd, /* Open file descriptor for serial port to be - * initialized. */ - int initialize) + int fd) /* Open file descriptor for serial port to be initialized. */ { - TtyState *ttyPtr = ckalloc(sizeof(TtyState)); + struct termios iostate; + tcgetattr(fd, &iostate); - if (initialize) { - struct termios iostate; - tcgetattr(fd, &iostate); - - if (iostate.c_iflag != IGNBRK - || iostate.c_oflag != 0 - || iostate.c_lflag != 0 - || iostate.c_cflag & CREAD - || iostate.c_cc[VMIN] != 1 - || iostate.c_cc[VTIME] != 0) - { - iostate.c_iflag = IGNBRK; - iostate.c_oflag = 0; - iostate.c_lflag = 0; - iostate.c_cflag |= CREAD; - iostate.c_cc[VMIN] = 1; - iostate.c_cc[VTIME] = 0; - - tcsetattr(fd, TCSADRAIN, &iostate); - } + if (iostate.c_iflag != IGNBRK + || iostate.c_oflag != 0 + || iostate.c_lflag != 0 + || iostate.c_cflag & CREAD + || iostate.c_cc[VMIN] != 1 + || iostate.c_cc[VTIME] != 0) + { + iostate.c_iflag = IGNBRK; + iostate.c_oflag = 0; + iostate.c_lflag = 0; + iostate.c_cflag |= CREAD; + iostate.c_cc[VMIN] = 1; + iostate.c_cc[VTIME] = 0; + + tcsetattr(fd, TCSADRAIN, &iostate); } - - return &ttyPtr->fs; } #endif /* SUPPORTS_TTY */ @@ -1432,15 +1407,15 @@ TclpOpenFileChannel( translation = "auto crlf"; channelTypePtr = &ttyChannelType; - fsPtr = TtyInit(fd, 1); + TtyInit(fd); } else #endif /* SUPPORTS_TTY */ { translation = NULL; channelTypePtr = &fileChannelType; - fsPtr = ckalloc(sizeof(FileState)); } + fsPtr = ckalloc(sizeof(FileState)); fsPtr->validMask = channelPermissions | TCL_EXCEPTION; fsPtr->fd = fd; @@ -1503,7 +1478,6 @@ Tcl_MakeFileChannel( #ifdef SUPPORTS_TTY if (isatty(fd)) { - fsPtr = TtyInit(fd, 0); channelTypePtr = &ttyChannelType; sprintf(channelName, "serial%d", fd); } else @@ -1514,10 +1488,10 @@ Tcl_MakeFileChannel( return TclpMakeTcpClientChannelMode(INT2PTR(fd), mode); } else { channelTypePtr = &fileChannelType; - fsPtr = ckalloc(sizeof(FileState)); sprintf(channelName, "file%d", fd); } + fsPtr = ckalloc(sizeof(FileState)); fsPtr->fd = fd; fsPtr->validMask = mode | TCL_EXCEPTION; fsPtr->channel = Tcl_CreateChannel(channelTypePtr, channelName, |