X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fcold-init.lisp;h=c343f4a51cb00415a359b1611c66e94c8760f81e;hb=2df8da85688355b4f4f31314246483ccea364746;hp=d8c11605347dea9d2c21e6d678a4833ebcaa46a9;hpb=8852534331f5505348d1217a3080ee25e09ec47e;p=sbcl.git diff --git a/src/code/cold-init.lisp b/src/code/cold-init.lisp index d8c1160..c343f4a 100644 --- a/src/code/cold-init.lisp +++ b/src/code/cold-init.lisp @@ -101,6 +101,7 @@ sb!unix::*unblock-deferrables-on-enabling-interrupts-p* nil *interrupts-enabled* t *interrupt-pending* nil + #!+sb-thruption #!+sb-thruption *thruption-pending* nil *break-on-signals* nil *maximum-error-depth* 10 *current-error-depth* 0 @@ -111,7 +112,7 @@ ;; I'm not sure where eval is first called, so I put this first. (show-and-call !eval-cold-init) - + (show-and-call !deadline-cold-init) (show-and-call thread-init-or-reinit) (show-and-call !typecheckfuns-cold-init) @@ -274,19 +275,64 @@ (toplevel-init) (critically-unreachable "after TOPLEVEL-INIT"))) -(defun quit (&key recklessly-p (unix-status 0)) - #!+sb-doc - "Terminate the current Lisp. *EXIT-HOOKS* and pending unwind-protect -cleanup forms are run unless RECKLESSLY-P is true. On UNIX-like -systems, UNIX-STATUS is used as the status code." - (declare (type (signed-byte 32) unix-status)) - ;; FIXME: Windows is not "unix-like", but still has the same - ;; unix-status... maybe we should just revert to calling it :STATUS? - (/show0 "entering QUIT") - (if recklessly-p - (sb!unix:unix-exit unix-status) - (throw '%end-of-the-world unix-status)) +(define-deprecated-function :early "1.0.56.55" quit (exit sb!thread:abort-thread) + (&key recklessly-p (unix-status 0)) + (if (or recklessly-p (sb!thread:main-thread-p)) + (exit :code unix-status :abort recklessly-p) + (sb!thread:abort-thread)) (critically-unreachable "after trying to die in QUIT")) + +(declaim (ftype (sfunction (&key (:code (or null exit-code)) + (:timeout (or null real)) + (:abort t)) + nil) + exit)) +(defun exit (&key code abort (timeout *exit-timeout*)) + #!+sb-doc + "Terminates the process, causing SBCL to exit with CODE. CODE +defaults to 0 when ABORT is false, and 1 when it is true. + +When ABORT is false (the default), current thread is first unwound, +*EXIT-HOOKS* are run, other threads are terminated, and standard +output streams are flushed before SBCL calls exit(3) -- at which point +atexit(3) functions will run. If multiple threads call EXIT with ABORT +being false, the first one to call it will complete the protocol. + +When ABORT is true, SBCL exits immediately by calling _exit(2) without +unwinding stack, or calling exit hooks. Note that _exit(2) does not +call atexit(3) functions unlike exit(3). + +Recursive calls to EXIT cause EXIT to behave as it ABORT was true. + +TIMEOUT controls waiting for other threads to terminate when ABORT is +NIL. Once current thread has been unwound and *EXIT-HOOKS* have been +run, spawning new threads is prevented and all other threads are +terminated by calling TERMINATE-THREAD on them. The system then waits +for them to finish using JOIN-THREAD, waiting at most a total TIMEOUT +seconds for all threads to join. Those threads that do not finish +in time are simply ignored while the exit protocol continues. TIMEOUT +defaults to *EXIT-TIMEOUT*, which in turn defaults to 60. TIMEOUT NIL +means to wait indefinitely. + +Note that TIMEOUT applies only to JOIN-THREAD, not *EXIT-HOOKS*. Since +TERMINATE-THREAD is asynchronous, getting multithreaded application +termination with complex cleanups right using it can be tricky. To +perform an orderly synchronous shutdown use an exit hook instead of +relying on implicit thread termination. + +Consequences are unspecified if serious conditions occur during EXIT +excepting errors from *EXIT-HOOKS*, which cause warnings and stop +execution of the hook that signaled, but otherwise allow the exit +process to continue normally." + (if (or abort *exit-in-process*) + (os-exit (or code 1) :abort t) + (let ((code (or code 0))) + (with-deadline (:seconds nil :override t) + (sb!thread:grab-mutex *exit-lock*)) + (setf *exit-in-process* code + *exit-timeout* timeout) + (throw '%end-of-the-world t))) + (critically-unreachable "After trying to die in EXIT.")) ;;;; initialization functions