X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=tclmain.c;h=376e56feaa312bfac842d6e851733216a2e3ba8d;hb=f25d0ab1672bff45ed845baf786f23aac60ca243;hp=203d8aa2923e8d0186860abfa1cb0a79bdc5e125;hpb=075ab693cfc579ae9dbefd78d32d852e7b18d306;p=ir-tcl-moved-to-github.git diff --git a/tclmain.c b/tclmain.c index 203d8aa..376e56f 100644 --- a/tclmain.c +++ b/tclmain.c @@ -1,21 +1,85 @@ /* * IR toolkit for tcl/tk * (c) Index Data 1995 + * See the file LICENSE for details. + * Sebastian Hammer, Adam Dickmeiss + * + * $Log: tclmain.c,v $ + * Revision 1.14 1995-09-21 13:11:53 adam + * Support of dynamic loading. + * Test script uses load command if necessary. + * + * Revision 1.13 1995/08/28 12:21:22 adam + * Removed lines and list as synonyms of list in MARC extractron. + * Configure searches also for tk4.0 / tcl7.4. + * + * Revision 1.12 1995/08/28 11:07:16 adam + * Minor changes. + * + * Revision 1.11 1995/08/03 13:23:02 adam + * Request queue. + * + * Revision 1.10 1995/06/30 12:39:28 adam + * Bug fix: loadFile didn't set record type. + * The MARC routines are a little less strict in the interpretation. + * Script display.tcl replaces the old marc.tcl. + * New interactive script: shell.tcl. + * + * Revision 1.9 1995/06/26 10:20:20 adam + * ir-tk works like wish. + * + * Revision 1.8 1995/06/21 15:16:44 adam + * More work on configuration. + * + * Revision 1.7 1995/06/21 11:04:54 adam + * Uses GNU autoconf 2.3. + * Install procedure implemented. + * boook bitmaps moved to sub directory bitmaps. + * + * Revision 1.6 1995/05/29 08:44:28 adam + * Work on delete of objects. + * + * Revision 1.5 1995/03/20 08:53:30 adam + * Event loop in tclmain.c rewritten. New method searchStatus. + * + * Revision 1.4 1995/03/17 07:50:31 adam + * Headers have changed a little. * - * $Id: tclmain.c,v 1.1 1995-03-06 17:05:34 adam Exp $ */ -#include +#include +#include +#include +#ifdef _AIX +#include +#endif +#include +#include +#include #include "ir-tcl.h" static char *fileName = NULL; +/* select(2) callbacks */ +struct callback { + void (*r_handle)(ClientData); + void (*w_handle)(ClientData); + void (*x_handle)(ClientData); + void *obj; +}; +#define MAX_CALLBACK 200 + +static struct callback callback_table[MAX_CALLBACK]; +static int max_fd = 3; /* don't worry: it will grow... */ + +void tcl_mainloop (Tcl_Interp *interp, int interactive); + int Tcl_AppInit (Tcl_Interp *interp) { if (Tcl_Init(interp) == TCL_ERROR) return TCL_ERROR; - if (ir_tcl_init(interp) == TCL_ERROR) + if (Irtcl_Init(interp) == TCL_ERROR) return TCL_ERROR; return TCL_OK; } @@ -24,28 +88,178 @@ int main (int argc, char **argv) { Tcl_Interp *interp; int code; + int i; interp = Tcl_CreateInterp(); + Tcl_SetVar (interp, "tcl_interactive", "0", TCL_GLOBAL_ONLY); + if (argc == 2) + fileName = argv[1]; - if (argc != 2) + if (Tcl_AppInit(interp) != TCL_OK) { + fprintf(stderr, "Tcl_AppInit failed: %s\n", interp->result); + } + for (i=0; iresult != 0) + printf ("%s\n", interp->result); + if (code != TCL_OK) + exit (1); + tcl_mainloop (interp, 0); + } + else if (isatty(0)) + { + + Tcl_SetVar (interp, "tcl_interactive", "1", TCL_GLOBAL_ONLY); + tcl_mainloop (interp, 1); + } + else + { + Tcl_DString command; + char input_buf[1024]; + int count; + + printf ("xx\n"); + Tcl_DStringInit (&command); + while (fgets (input_buf, 1024, stdin)) + { + count = strlen(input_buf); + Tcl_DStringAppend (&command, input_buf, count); + if (Tcl_CommandComplete (Tcl_DStringValue (&command))) + { + int code = Tcl_Eval (interp, Tcl_DStringValue (&command)); + Tcl_DStringFree (&command); + if (code) + printf ("Error: %s\n", interp->result); + } + } + tcl_mainloop (interp, 0); } - if (Tcl_AppInit(interp) != TCL_OK) { - fprintf(stderr, "Tcl_AppInit failed: %s\n", interp->result); - } - code = Tcl_EvalFile (interp, fileName); - if (*interp->result != 0) - printf ("%s\n", interp->result); - if (code != TCL_OK) - exit (1); exit (0); } +void tcl_mainloop (Tcl_Interp *interp, int interactive) +{ + int i; + int res; + Tcl_DString command; + static fd_set fdset_tcl_r; + static fd_set fdset_tcl_w; + static fd_set fdset_tcl_x; + int min_fd; + + min_fd = interactive ? 3 : 0; + if (interactive) + { + Tcl_DStringInit (&command); + printf ("%% "); fflush (stdout); + } + while (1) + { + FD_ZERO (&fdset_tcl_r); + FD_ZERO (&fdset_tcl_w); + FD_ZERO (&fdset_tcl_x); + if (interactive) + FD_SET (0, &fdset_tcl_r); + for (res=0, i=min_fd; i<=max_fd; i++) + { + if (callback_table[i].w_handle) + { + FD_SET (i, &fdset_tcl_w); + res++; + } + if (callback_table[i].r_handle) + { + FD_SET (i, &fdset_tcl_r); + res++; + } + if (callback_table[i].x_handle) + { + FD_SET (i, &fdset_tcl_x); + res++; + } + } + if (!interactive && !res) + return; + if ((res = select(max_fd+1, &fdset_tcl_r, &fdset_tcl_w, + &fdset_tcl_x, 0)) < 0) + { + perror("select"); + exit(1); + } + if (!res) + continue; + for (i=min_fd; i<=max_fd; i++) + { + if (FD_ISSET (i, &fdset_tcl_r)) + { + assert (callback_table[i].r_handle); + (*callback_table[i].r_handle) (callback_table[i].obj); + } + if (FD_ISSET (i, &fdset_tcl_w)) + { + assert (callback_table[i].w_handle); + (*callback_table[i].w_handle) (callback_table[i].obj); + } + if (FD_ISSET (i, &fdset_tcl_x)) + { + assert (callback_table[i].x_handle); + (*callback_table[i].x_handle) (callback_table[i].obj); + } + } + if (interactive && FD_ISSET(0, &fdset_tcl_r)) + { + char input_buf[1024]; + int count = read (0, input_buf, 1024); + + if (count <= 0) + exit (0); + Tcl_DStringAppend (&command, input_buf, count); + if (Tcl_CommandComplete (Tcl_DStringValue (&command))) + { + int code = Tcl_Eval (interp, Tcl_DStringValue (&command)); + Tcl_DStringFree (&command); + if (code) + printf ("Error: %s\n", interp->result); + else if (*interp->result) + printf ("%s\n", interp->result); + printf ("%% "); fflush (stdout); + } + } + } +} + +void ir_select_add (int fd, void *obj) +{ + callback_table[fd].obj = obj; + callback_table[fd].r_handle = ir_select_read; + callback_table[fd].w_handle = NULL; + callback_table[fd].x_handle = NULL; + if (fd > max_fd) + max_fd = fd; +} + +void ir_select_add_write (int fd, void *obj) +{ + callback_table[fd].w_handle = ir_select_write; + if (fd > max_fd) + max_fd = fd; +} + +void ir_select_remove_write (int fd, void *obj) +{ + callback_table[fd].w_handle = NULL; +} + +void ir_select_remove (int fd, void *obj) +{ + callback_table[fd].r_handle = NULL; + callback_table[fd].w_handle = NULL; + callback_table[fd].x_handle = NULL; +}