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emarsden authored
Add package locks. Bootfile boot8.lisp allows this to build without a cross-compile (or just select the CLOBBER-IT restart). - two extra PACKAGE-LOCK and PACKAGE-DEFINITION-LOCK slots added to the package structure. These can be modified using the EXT:PACKAGE-LOCK and EXT:PACKAGE-DEFINITION-LOCK accessors. - macro EXT:WITHOUT-PACKAGE-LOCKS that evaluates forms with all package locks disabled (this is done by binding the global variable CL::*ENABLE-PACKAGE-LOCKED-ERRORS*) - new PACKAGE-LOCKED-ERROR condition - in SETF-FDEFINITION-HOOK and in the DEFMACRO, DEFSTRUCT, DEFTYPE and DEFCLASS defining forms, check whether the definition would modify a package whose definition-lock is enabled, and signal a package-locked-error condition with restarts that allow you to unlock the package or ignore the lock - in EXPORT, UNEXPORT etc check whether the target package is guarded by a package-lock, and signal an error - disable package locks when loading a subsystem - disable package locks in certain areas of PCL and in the MAKE-LOAD-FORM support of the compiler, where code is generated inside system packages at runtime
emarsden authoredAdd package locks. Bootfile boot8.lisp allows this to build without a cross-compile (or just select the CLOBBER-IT restart). - two extra PACKAGE-LOCK and PACKAGE-DEFINITION-LOCK slots added to the package structure. These can be modified using the EXT:PACKAGE-LOCK and EXT:PACKAGE-DEFINITION-LOCK accessors. - macro EXT:WITHOUT-PACKAGE-LOCKS that evaluates forms with all package locks disabled (this is done by binding the global variable CL::*ENABLE-PACKAGE-LOCKED-ERRORS*) - new PACKAGE-LOCKED-ERROR condition - in SETF-FDEFINITION-HOOK and in the DEFMACRO, DEFSTRUCT, DEFTYPE and DEFCLASS defining forms, check whether the definition would modify a package whose definition-lock is enabled, and signal a package-locked-error condition with restarts that allow you to unlock the package or ignore the lock - in EXPORT, UNEXPORT etc check whether the target package is guarded by a package-lock, and signal an error - disable package locks when loading a subsystem - disable package locks in certain areas of PCL and in the MAKE-LOAD-FORM support of the compiler, where code is generated inside system packages at runtime