--- /dev/null
+/*
+ * Copyright (c) 1995, the EUROPAGATE consortium (see below).
+ *
+ * The EUROPAGATE consortium members are:
+ *
+ * University College Dublin
+ * Danmarks Teknologiske Videnscenter
+ * An Chomhairle Leabharlanna
+ * Consejo Superior de Investigaciones Cientificas
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation, in whole or in part, for any purpose, is hereby granted,
+ * provided that:
+ *
+ * 1. This copyright and permission notice appear in all copies of the
+ * software and its documentation. Notices of copyright or attribution
+ * which appear at the beginning of any file must remain unchanged.
+ *
+ * 2. The names of EUROPAGATE or the project partners may not be used to
+ * endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * 3. Users of this software (implementors and gateway operators) agree to
+ * inform the EUROPAGATE consortium of their use of the software. This
+ * information will be used to evaluate the EUROPAGATE project and the
+ * software, and to plan further developments. The consortium may use
+ * the information in later publications.
+ *
+ * 4. Users of this software agree to make their best efforts, when
+ * documenting their use of the software, to acknowledge the EUROPAGATE
+ * consortium, and the role played by the software in their work.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ * IN NO EVENT SHALL THE EUROPAGATE CONSORTIUM OR ITS MEMBERS BE LIABLE
+ * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF
+ * ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+ * OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND
+ * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * $Log: wirtcl.c,v $
+ * Revision 1.1 1995/10/27 15:12:08 adam
+ * IrTcl incorporated in the gateway.
+ * Better separation of script types.
+ * Z39.50 gateway scripts entered.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#ifdef AIX
+#include <sys/select.h>
+#endif
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include "wtcl.h"
+#include "wirtcl.h"
+
+static void *do_create (WCLIENT wcl, void *args);
+static int do_exec (const char *fname, char *parms, void *mydata);
+
+static struct w_interp_type w_interp_t = {
+ "irtcl",
+ do_create,
+ do_exec
+};
+
+W_Interp_Type w_interp_irtcl = &w_interp_t;
+
+
+static char *mod = "wirtcl";
+
+struct tcl_info {
+ W_Interp w_interp;
+ Tcl_Interp *interp;
+ WCLIENT wcl;
+};
+
+static void *do_create (WCLIENT wcl, void *args)
+{
+ struct tcl_info *p;
+
+ if (!(p = malloc (sizeof(*p))))
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: irtcl_info");
+ exit (1);
+ }
+ if (!(p->w_interp = w_interp_create (w_interp_tcl, wcl, NULL)))
+ {
+ gw_log (GW_LOG_FATAL, mod, "Cannot make Tcl_Interp");
+ exit (1);
+ }
+ p->wcl = wcl;
+ p->interp = w_interp_tcl_get (p->w_interp);
+ if (Irtcl_Init(p->interp) == TCL_ERROR)
+ {
+ gw_log (GW_LOG_FATAL, mod, "Cannot make Irtcl_Interp");
+ exit (1);
+ }
+ /* initialize irtcl */
+ return p;
+}
+
+/* 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... */
+
+static int do_exec (const char *fname, char *parms, void *mydata)
+{
+ struct tcl_info *p = mydata;
+ int i, r, min_fd = 0;
+ const char *cp;
+ static fd_set fdset_tcl_r;
+ static fd_set fdset_tcl_w;
+ static fd_set fdset_tcl_x;
+
+ for (i=0; i<MAX_CALLBACK; i++)
+ {
+ callback_table[i].r_handle = NULL;
+ callback_table[i].w_handle = NULL;
+ callback_table[i].x_handle = NULL;
+ }
+ if ((r = w_interp_exec (p->w_interp, fname, parms)))
+ return r;
+ while (1)
+ {
+ FD_ZERO (&fdset_tcl_r);
+ FD_ZERO (&fdset_tcl_w);
+ FD_ZERO (&fdset_tcl_x);
+ for (r=0, i=min_fd; i<=max_fd; i++)
+ {
+ if (callback_table[i].w_handle)
+ {
+ FD_SET (i, &fdset_tcl_w);
+ r++;
+ }
+ if (callback_table[i].r_handle)
+ {
+ FD_SET (i, &fdset_tcl_r);
+ r++;
+ }
+ if (callback_table[i].x_handle)
+ {
+ FD_SET (i, &fdset_tcl_x);
+ r++;
+ }
+ }
+ if (!r)
+ return 0;
+ if ((r = select(max_fd+1, &fdset_tcl_r, &fdset_tcl_w,
+ &fdset_tcl_x, 0)) < 0)
+ {
+ perror("select");
+ exit(1);
+ }
+ if (!r)
+ 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 ((cp=Tcl_GetVar (p->interp, "sessionWait", 0)) && !strcmp (cp, "0"))
+ return 0;
+ }
+ return 0;
+}
+
+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;
+}
projects / egate.git / blobdiff