Implement Responsive Client-Side Autoscaling

centrallix-dev-tools/cx.vim

@@ -26,7 +26,7 @@ syn keyword cxKeywords show_branches show_diagnostics show_root show_root_branch
 syn keyword cxKeywords tab_revealed_only tab_width target target_key_1 target_key_2 target_key_3 target_key_4 target_key_5 text textcolor textcolorhighlight
 syn keyword cxKeywords textcolornew title titlebar titlecolor tooltip toplevel tristate type use_having_clause use_3d_lines valign value visible widget_template
 syn keyword cxKeywords widget_class width windowsize x y
-syn keyword cxKeywords param_name fl_height fl_y fl_x display_for min_rowheight max_rowheight initial_selection demand_scrollbar overlap_scrollbar
+syn keyword cxKeywords param_name fl_height display_for min_rowheight max_rowheight initial_selection demand_scrollbar overlap_scrollbar
 syn keyword cxKeywords row_border_radius border_radius
 
 

centrallix-lib/Makefile.in

@@ -63,10 +63,10 @@ CFLAGS=@CFLAGS@ @DEFS@ -Iinclude -DCXLIB_INTERNAL -DNM_USE_SYSMALLOC -Wall $(PRO
 MTCFLAGS=@CFLAGS@ @DEFS@ -Iinclude -DCXLIB_INTERNAL -DNM_USE_SYSMALLOC -Wall $(PROFILE) $(COVERAGE) -g -O0
 TCFLAGS=$(patsubst -DNDEBUG,,$(CFLAGS))
 
-XSTATICFILES=mtask.o mtlexer.o memstr.o xarray.o xhash.o xstring.o mtsession.o newmalloc.o xhashqueue.o bdqs_transport.o xhandle.o xringqueue.o cxsec.o smmalloc.o qprintf.o strtcpy.o util.o
+XSTATICFILES=mtask.o mtlexer.o memstr.o xarray.o xhash.o xstring.o mtsession.o newmalloc.o xhashqueue.o bdqs_transport.o xhandle.o xringqueue.o cxsec.o smmalloc.o qprintf.o strtcpy.o util.o timer.o check.o range.o
 STATICFILES=$(patsubst %,src/%,$(XSTATICFILES))
 
-XDYNAMICFILES=mtask.lo mtlexer.lo memstr.lo xarray.lo xhash.lo xstring.lo mtsession.lo newmalloc.lo xhashqueue.lo bdqs_transport.lo xhandle.lo xringqueue.lo cxsec.lo smmalloc.lo qprintf.lo strtcpy.lo util.lo
+XDYNAMICFILES=mtask.lo mtlexer.lo memstr.lo xarray.lo xhash.lo xstring.lo mtsession.lo newmalloc.lo xhashqueue.lo bdqs_transport.lo xhandle.lo xringqueue.lo cxsec.lo smmalloc.lo qprintf.lo strtcpy.lo util.lo timer.lo check.lo range.lo
 DYNAMICFILES=$(patsubst %,src/%,$(XDYNAMICFILES))
 
 INCLUDEFILES:=$(wildcard include/*.h)

centrallix-lib/aclocal.m4

@@ -47,7 +47,7 @@ AC_DEFUN(CHECK_BUILTIN_EXPECT,
 		AC_DEFINE([HAVE_BUILTIN_EXPECT], [1], [Define if __builtin_expect is available])
 		AC_MSG_RESULT([yes])
 	    ],
-	    [AC_MSG_RESULT([no])]
+	    [AC_MSG_RESULT([no])],
 	)
     ]
 )

centrallix-lib/configure

@@ -3355,6 +3355,45 @@ _ACEOF
 
 fi
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lm" >&5
+$as_echo_n "checking for main in -lm... " >&6; }
+if ${ac_cv_lib_m_main+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+int
+main ()
+{
+return main ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_m_main=yes
+else
+  ac_cv_lib_m_main=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_main" >&5
+$as_echo "$ac_cv_lib_m_main" >&6; }
+if test "x$ac_cv_lib_m_main" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBM 1
+_ACEOF
+
+  LIBS="-lm $LIBS"
+
+fi
+
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -4108,7 +4147,6 @@ $as_echo "yes" >&6; }
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 

centrallix-lib/configure.ac

@@ -18,6 +18,7 @@ dnl Checks for libraries.
 dnl Replace `main' with a function in -lz:
 AC_CHECK_LIB(z, main)
 AC_CHECK_LIB(crypt, main)
+AC_CHECK_LIB(m, main)
 
 dnl Checks for header files.
 AC_HEADER_STDC

centrallix-lib/include/check.h

@@ -0,0 +1,100 @@
+#ifndef CHECK_H
+#define	CHECK_H
+
+/************************************************************************/
+/* Centrallix Application Server System                                 */
+/* Centrallix Base Library                                              */
+/*                                                                      */
+/* Copyright (C) 1998-2026 LightSys Technology Services, Inc.           */
+/*                                                                      */
+/* You may use these files and this library under the terms of the      */
+/* GNU Lesser General Public License, Version 2.1, contained in the     */
+/* included file "COPYING".                                             */
+/*                                                                      */
+/* Module:      check.c, check.h                                        */
+/* Author:      Israel Fuller                                           */
+/* Date:        October 13, 2025                                        */
+/* Description: A utility to help with error checking on function       */
+/*              return values, especially for library functions.        */
+/************************************************************************/
+
+#include <errno.h>
+#include <math.h>
+#include <string.h>
+
+#include "expect.h"
+
+/** File name macro, expanding functionality like __FILE__ and __LINE__. **/
+#define __FILENAME__ \
+    ({ \
+    const char* last_directory = strrchr(__FILE__, '/'); \
+    ((last_directory != NULL) ? last_directory + 1 : __FILE__); \
+    })
+
+/** Internal error printer (forward declaration). **/
+void printErrInternal(const int error_code, const char* c_str, const char* file_name, const int line_number);
+
+#define printErr(error_code, c_str) printErrInternal(error_code, (c_str), __FILE__, __LINE__)
+#define printFail(c_str) { errno = 0; printErr(-1, (c_str)); }
+
+/*** Ensures that developer diagnostics are printed if the result of the
+ *** passed function call is not zero.  Not intended for user errors.
+ *** 
+ *** @param result The expression to check.  The text of this expression is
+ *** 	included in the error message if an error occurs.
+ *** @returns The result of the checked expression.
+ ***/
+#define check(result) \
+    ({ \
+	errno = 0; /* Reset errno to prevent confusion. */ \
+	int _r = (result); \
+	if (UNLIKELY(_r != 0)) printErr(_r, #result" failed"); \
+	_r; \
+    })
+
+/*** Ensures that developer diagnostics are printed if the result of the
+ *** passed function call is negative. Not intended for user errors.
+ *** 
+ *** @param result The expression to check.  The text of this expression is
+ *** 	included in the error message if an error occurs.
+ *** @returns The result of the checked expression.
+ ***/
+#define checkNeg(result) \
+    ({ \
+	errno = 0; /* Reset errno to prevent confusion. */ \
+	int _r = (result); \
+	if (UNLIKELY(_r < 0)) printErr(_r, #result" failed"); \
+	_r; \
+    })
+
+/*** Ensures that developer diagnostics are printed if the result of the
+ *** passed function call is a NAN double. Not intended for user errors.
+ *** 
+ *** @param result The expression to check.  The text of this expression is
+ *** 	included in the error message if an error occurs.
+ *** @returns The result of the checked expression.
+ ***/
+#define checkDouble(result) \
+    ({ \
+	errno = 0; /* Reset errno to prevent confusion. */ \
+	double _r = (result); \
+	if (UNLIKELY(isnan(_r))) printErr(-1, #result" failed"); \
+	_r; \
+    })
+
+/*** Ensures that developer diagnostics are printed if the result of the
+ *** passed function call is a NULL pointer. Not intended for user errors.
+ *** 
+ *** @param result The expression to check.  The text of this expression is
+ *** 	included in the error message if an error occurs.
+ *** @returns The result of the checked expression.
+ ***/
+#define checkPtr(result) \
+    ({ \
+	errno = 0; /* Reset errno to prevent confusion. */ \
+	void* _r = (result); \
+	if (UNLIKELY(_r == NULL)) printErr(-1, #result" failed"); \
+	_r; \
+    })
+
+#endif	/* CHECK_H */

centrallix-lib/include/cxlibconfig-all.h.in

@@ -21,6 +21,9 @@
 /* Define to 1 if you have the `crypt' library (-lcrypt). */
 #undef HAVE_LIBCRYPT
 
+/* Define to 1 if you have the `m' library (-lm). */
+#undef HAVE_LIBM
+
 /* Define to 1 if you have the `z' library (-lz). */
 #undef HAVE_LIBZ
 

centrallix-lib/include/cxlibconfig-internal.h.in

@@ -1,10 +1,5 @@
 /* include/cxlibconfig-internal.h.in.  Generated from configure.ac by autoheader.  */
 
-/*** cxlibconfig-internal.h.in lists defines that are used by centrallix-lib
- *** internally and will not be needed in other modules.  For external
- *** usecases, see cxlibconfig.h.in.
- ***/
-
 /* Define to the address where bug reports for this package should be sent. */
 #undef PACKAGE_BUGREPORT
 

centrallix-lib/include/cxlibconfig.h.in

@@ -1,11 +1,5 @@
 /* include/cxlibconfig.h.in.  Generated from configure.ac by autoheader.  */
 
-/*** cxlibconfig-h.in lists defines that should be availabe to anyone
- *** using centrallix-lib. For example, a define used in an external .h 
- *** file should be written here so that the .h file can include it even
- *** if it is used in another project.
- ***/
-
 /* Define to 1 if you have the `endservent' function. */
 #undef HAVE_ENDSERVENT
 
@@ -39,9 +33,6 @@
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
-/* Define to 1 if you have the `__builtin_expect' function. */
-#undef HAVE_BUILTIN_EXPECT
-
 /* Define to 1 if you have the `strdup' function. */
 #undef HAVE_STRDUP
 

centrallix-lib/include/expect.h

@@ -11,7 +11,7 @@
 /* GNU Lesser General Public License, Version 2.1, contained in the	*/
 /* included file "COPYING".						*/
 /* 									*/
-/* Module:	Expect Branch Optimization Module (expect.h)		*/
+/* Module:	Expect Branch Optimization Module (mtask.c, mtask.h)	*/
 /* Author:	Israel Fuller						*/
 /* Date:	February 27th, 2026					*/
 /*									*/
@@ -23,26 +23,19 @@
 /* 		true, UNLIKELY() indicates it is likely to be false.	*/
 /************************************************************************/
 
-#ifdef HAVE_CONFIG_H
- #ifdef CXLIB_INTERNAL
-  #include "cxlibconfig.h"
- #else
-  #include "cxlib/cxlibconfig.h"
- #endif
-#endif
 
 /** Define macros for signalling the more likely branch to the compiler. **/
 #ifdef HAVE_BUILTIN_EXPECT
- /** Use the GCC __builtin_expect() function for optimization. **/
- /** Note: We use !!(x) which normalizes to 0 or 1 to help the compiler. **/
- #define LIKELY(x)   (__builtin_expect(!!(x), 1))
- #define UNLIKELY(x) (__builtin_expect(!!(x), 0))
+/** Use the GCC __builtin_expect() function for optimization. **/
+/** Note: We use !!(x) which normalizes to 0 or 1 to help the compiler. **/
+#define LIKELY(x)   (__builtin_expect(!!(x), 1))
+#define UNLIKELY(x) (__builtin_expect(!!(x), 0))
 #else
- /*** Fallback: Define pass through functions to support compilers that don't
-  *** have this feature.
-  ***/
- #define LIKELY(x)   (!!(x))
- #define UNLIKELY(x) (!!(x))
+/*** Fallback: Define pass through functions to support compilers that don't
+ *** have this feature.
+ ***/
+#define LIKELY(x)   (!!(x))
+#define UNLIKELY(x) (!!(x))
 #endif
 
 #endif