From d5a22b4c586ff61b8c9b0ad2967c1edd69ffc0e9 Mon Sep 17 00:00:00 2001
From: Dan Egnor <egnor@ofb.net>
Date: Tue, 18 Sep 2001 22:11:41 +0000
Subject: [PATCH] version 0.8
---
Makefile.am | 8 ++-
configure.in | 13 +++-
oop-tcl.h | 18 +++++
tcl.c | 191 +++++++++++++++++++++++++++++++++++++++++++++++++++
test-oop.c | 55 ++++++++++++---
5 files changed, 272 insertions(+), 13 deletions(-)
create mode 100644 oop-tcl.h
create mode 100644 tcl.c
diff --git a/Makefile.am b/Makefile.am
index 65c2393..0ae1eba 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -7,7 +7,7 @@
# See the file COPYING for details.
AUTOMAKE_OPTIONS = foreign 1.2
-lib_LTLIBRARIES = liboop-adns.la liboop-glib.la liboop-www.la liboop-rl.la liboop.la
+lib_LTLIBRARIES = liboop-adns.la liboop-glib.la liboop-tcl.la liboop-www.la liboop-rl.la liboop.la
INCLUDES = $(GLIB_INCLUDES) $(WWW_INCLUDES)
# versions updated as of 0.7
@@ -22,6 +22,10 @@ liboop_glib_la_LDFLAGS = -version-info 1:0:0
liboop_glib_la_LIBADD = $(GLIB_LIBS)
liboop_glib_la_SOURCES = glib.c
+liboop_tcl_la_LDFLAGS = -version-info 0:0:0
+liboop_tcl_la_LIBADD = $(TCL_LIBS)
+liboop_tcl_la_SOURCES = tcl.c
+
liboop_www_la_LDFLAGS = -version-info 0:0:0
liboop_www_la_LIBADD = $(WWW_LIBS)
liboop_www_la_SOURCES = www.c
@@ -30,7 +34,7 @@ liboop_rl_la_LDFLAGS = -version-info 0:0:0
liboop_rl_la_LIBADD = $(READLINE_LIBS)
liboop_rl_la_SOURCES = readline.c
-include_HEADERS = oop.h oop-adns.h oop-glib.h oop-www.h oop-rl.h oop-read.h
+include_HEADERS = oop.h oop-adns.h oop-glib.h oop-tcl.h oop-www.h oop-rl.h oop-read.h
noinst_PROGRAMS = test-oop
diff --git a/configure.in b/configure.in
index 23ac539..8c42094 100644
--- a/configure.in
+++ b/configure.in
@@ -1,6 +1,6 @@
dnl Process this file with autoconf to produce a configure script.
AC_INIT(INSTALL)
-AM_INIT_AUTOMAKE(liboop,0.7)
+AM_INIT_AUTOMAKE(liboop,0.8)
AC_CANONICAL_HOST
dnl Use libtool for shared libraries
@@ -44,6 +44,15 @@ if test -n "$PROG_GLIB_CONFIG" ; then
AC_DEFINE(HAVE_GLIB)
fi
+for version in 8.4 8.3 8.2 8.1 8.0 ; do
+ AC_CHECK_LIB(tcl$version,Tcl_Main,[
+ AC_DEFINE(HAVE_TCL)
+ TCL_INCLUDES="-I/usr/include/tcl$version"
+ TCL_LIBS="-ltcl$version"
+ break
+ ])
+done
+
# the libwww RPM puts headers here:
AC_CHECK_LIB(wwwcore,HTEvent_setRegisterCallback,[
AC_DEFINE(HAVE_WWW)
@@ -66,6 +75,8 @@ CFLAGS="-Wall -Wno-comment -Wmissing-prototypes -Wstrict-prototypes -Wpointer-ar
AC_SUBST(PROG_LDCONFIG)
AC_SUBST(GLIB_INCLUDES)
AC_SUBST(GLIB_LIBS)
+AC_SUBST(TCL_INCLUDES)
+AC_SUBST(TCL_LIBS)
AC_SUBST(ADNS_LIBS)
AC_SUBST(WWW_INCLUDES)
AC_SUBST(WWW_LIBS)
diff --git a/oop-tcl.h b/oop-tcl.h
new file mode 100644
index 0000000..f2a339a
--- /dev/null
+++ b/oop-tcl.h
@@ -0,0 +1,18 @@
+/* oop-glib.h, liboop, copyright 1999 Dan Egnor
+
+ This is free software; you can redistribute it and/or modify it under the
+ terms of the GNU Lesser General Public License, version 2.1 or later.
+ See the file COPYING for details. */
+
+#ifndef OOP_TCL_H
+#define OOP_TCL_H
+
+#include "oop.h"
+
+/* Create an event source based on the Tcl event loop. */
+oop_source *oop_tcl_new(void);
+
+/* Delete the event source so created. (Uses reference counting.) */
+void oop_tcl_done(void);
+
+#endif
diff --git a/tcl.c b/tcl.c
new file mode 100644
index 0000000..f1d5c63
--- /dev/null
+++ b/tcl.c
@@ -0,0 +1,191 @@
+/* glib.c, liboop, copyright 1999 Dan Egnor
+
+ This is free software; you can redistribute it and/or modify it under the
+ terms of the GNU Lesser General Public License, version 2.1 or later.
+ See the file COPYING for details. */
+
+#ifdef HAVE_TCL
+
+#include "oop-tcl.h"
+#include <tcl.h>
+#include <assert.h>
+
+struct file_handler {
+ oop_call_fd *f[OOP_NUM_EVENTS];
+ void *d[OOP_NUM_EVENTS];
+};
+
+struct timer_handler {
+ struct timeval t;
+ oop_call_time *f;
+ void *d;
+ Tcl_TimerToken token;
+ struct timer_handler *next;
+};
+
+static int use_count = 0;
+static struct oop_source source;
+static struct oop_adapter_signal *signal;
+
+static int array_size;
+static struct file_handler *array;
+static struct timer_handler *list;
+
+static void file_call(ClientData data,int mask) {
+ const int fd = (int) data;
+ oop_source * const oop = oop_tcl_new();
+ const struct file_handler *h;
+
+ if (fd >= array_size) {
+ oop_tcl_done();
+ return;
+ }
+
+ /* BUG: what if !OOP_CONTINUE? */
+
+ h = &array[fd];
+ if ((mask & TCL_READABLE) && NULL != h->f[OOP_READ])
+ h->f[OOP_READ](oop,fd,OOP_READ,h->d[OOP_READ]);
+
+ h = &array[fd];
+ if ((mask & TCL_WRITABLE) && NULL != h->f[OOP_WRITE])
+ h->f[OOP_WRITE](oop,fd,OOP_WRITE,h->d[OOP_WRITE]);
+
+ h = &array[fd];
+ if ((mask & TCL_EXCEPTION) && NULL != h->f[OOP_EXCEPTION])
+ h->f[OOP_EXCEPTION](oop,fd,OOP_EXCEPTION,h->d[OOP_EXCEPTION]);
+
+ oop_tcl_done();
+}
+
+static void set_mask(int fd) {
+ int mask = 0;
+ const struct file_handler * const h = &array[fd];
+ if (NULL != h->f[OOP_READ]) mask |= TCL_READABLE;
+ if (NULL != h->f[OOP_WRITE]) mask |= TCL_WRITABLE;
+ if (NULL != h->f[OOP_EXCEPTION]) mask |= TCL_EXCEPTION;
+
+ if (0 == mask)
+ Tcl_DeleteFileHandler(fd);
+ else
+ Tcl_CreateFileHandler(fd,mask,file_call,(ClientData) fd);
+}
+
+static void on_fd(oop_source *x,int fd,oop_event event,oop_call_fd *f,void *d) {
+ struct file_handler *h;
+
+ if (fd >= array_size) {
+ const int new_size = fd + 1;
+ struct file_handler * const new_array =
+ oop_realloc(array,new_size * sizeof(*new_array));
+ if (NULL == new_array) return; /* YUCK */
+
+ array = new_array;
+ while (array_size != new_size) {
+ int i;
+ for (i = 0; i < OOP_NUM_EVENTS; ++i)
+ array[array_size].f[i] = NULL;
+ ++array_size;
+ }
+ }
+
+ h = &array[fd];
+ assert(NULL == h->f[event] && NULL != f);
+ h->f[event] = f;
+ h->d[event] = d;
+ set_mask(fd);
+}
+
+static void cancel_fd(oop_source *x,int fd,oop_event event) {
+ if (fd < array_size) {
+ struct file_handler * const h = &array[fd];
+ h->f[event] = NULL;
+ set_mask(fd);
+ }
+}
+
+static void timer_call(ClientData data) {
+ struct timer_handler * const timer = (struct timer_handler *) data;
+ struct timer_handler **ptr;
+
+ Tcl_DeleteTimerHandler(timer->token);
+ for (ptr = &list; timer != *ptr; ptr = &(*ptr)->next) ;
+ *ptr = timer->next;
+
+ /* BUG: What if !OOP_CONTINUE? */
+ timer->f(oop_signal_source(signal),timer->t,timer->d);
+ oop_free(timer);
+}
+
+static void on_time(oop_source *x,struct timeval t,oop_call_time *f,void *d) {
+ struct timer_handler * const timer = oop_malloc(sizeof(*timer));
+ struct timeval now;
+ int msec;
+ if (NULL == timer) return; /* YUCK */
+
+ gettimeofday(&now,NULL);
+ if (t.tv_sec < now.tv_sec
+ || (t.tv_sec == now.tv_sec && t.tv_usec < now.tv_usec))
+ msec = 0;
+ else {
+ msec = 1000 * (t.tv_sec - now.tv_sec);
+ msec = msec + (t.tv_usec - now.tv_usec) / 1000;
+ }
+
+ assert(msec >= 0);
+ timer->t = t;
+ timer->f = f;
+ timer->d = d;
+ timer->next = list;
+ timer->token = Tcl_CreateTimerHandler(msec,timer_call,timer);
+ list = timer;
+}
+
+static void cancel_time(oop_source *x,struct timeval t,oop_call_time *f,void *d) {
+ struct timer_handler **timer;
+ for (timer = &list; NULL != *timer; timer = &(*timer)->next)
+ if ((*timer)->d == d && (*timer)->f == f
+ && (*timer)->t.tv_sec == t.tv_sec
+ && (*timer)->t.tv_usec == t.tv_usec) {
+ struct timer_handler *dead = *timer;
+ *timer = dead->next;
+ Tcl_DeleteTimerHandler(dead->token);
+ oop_free(dead);
+ return;
+ }
+}
+
+oop_source *oop_tcl_new(void) {
+ if (0 == use_count) {
+ source.on_fd = on_fd;
+ source.cancel_fd = cancel_fd;
+ source.on_time = on_time;
+ source.cancel_time = cancel_time;
+ source.on_signal = NULL;
+ source.cancel_signal = NULL;
+ array = NULL;
+ array_size = 0;
+ list = NULL;
+
+ /* Do this last, after everything is set up. */
+ signal = oop_signal_new(&source);
+ if (NULL == signal) return NULL;
+ }
+
+ ++use_count;
+ return oop_signal_source(signal);
+}
+
+void oop_tcl_done(void) {
+ if (0 == --use_count) {
+ int i,j;
+ for (i = 0; i < array_size; ++i)
+ for (j = 0; j < OOP_NUM_EVENTS; ++j)
+ assert(NULL == array[i].f[j]);
+ oop_free(array);
+ assert(NULL == list);
+ oop_signal_delete(signal);
+ }
+}
+
+#endif
diff --git a/test-oop.c b/test-oop.c
index 82c38d5..f9b522e 100644
--- a/test-oop.c
+++ b/test-oop.c
@@ -25,6 +25,11 @@
GMainLoop *glib_loop;
#endif
+#ifdef HAVE_TCL
+#include <tcl.h>
+#include "oop-tcl.h"
+#endif
+
#ifdef HAVE_WWW
/* Yuck: */
#define HAVE_CONFIG_H
@@ -60,6 +65,9 @@ static void usage(void) {
#ifdef HAVE_GLIB
" glib GLib source adapter\n"
#endif
+#ifdef HAVE_TCL
+" tcl Tcl source adapter\n"
+#endif
"sinks: timer some timers\n"
" signal some signal handlers\n"
" echo a stdin->stdout copy\n"
@@ -603,19 +611,46 @@ static void add_sink(oop_source *src,const char *name) {
usage();
}
-int main(int argc,char *argv[]) {
- oop_source *source;
+static void init(oop_source *source,int count,char *sinks[]) {
int i;
-
- if (argc < 3) usage();
+ source->on_signal(source,SIGQUIT,stop_loop,NULL);
puts("test-oop: use ^\\ (SIGQUIT) for clean shutdown or "
"^C (SIGINT) to stop abruptly.");
- source = create_source(argv[1]);
- source->on_signal(source,SIGQUIT,stop_loop,NULL);
- for (i = 2; i < argc; ++i)
- add_sink(source,argv[i]);
- run_source(argv[1]);
- delete_source(argv[1]);
+ for (i = 0; i < count; ++i)
+ add_sink(source,sinks[i]);
+}
+
+/* -- tcl source ----------------------------------------------------------- */
+
+#ifdef HAVE_TCL
+static int tcl_count;
+static char **tcl_sinks;
+
+static int tcl_init(Tcl_Interp *interp) {
+ init(oop_tcl_new(),tcl_count,tcl_sinks);
+ return TCL_OK;
+}
+#endif
+
+/* -- main ----------------------------------------------------------------- */
+
+int main(int argc,char *argv[]) {
+ if (argc < 3) usage();
+
+#ifdef HAVE_TCL
+ if (!strcmp(argv[1],"tcl")) { /* Tcl is a little ... different. */
+ tcl_count = argc - 2;
+ tcl_sinks = argv + 2;
+ Tcl_Main(1,argv,tcl_init);
+ } else
+#endif
+ {
+ oop_source * const source = create_source(argv[1]);
+ init(source,argc - 2,argv + 2);
+ run_source(argv[1]);
+ delete_source(argv[1]);
+ }
+
return 0;
}
--
GitLab