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c2247b782a
* libguile/gc.c (scm_oom_fn, scm_init_gc): Install an out-of-memory handler that raises an unwind-only out-of-memory exception. (scm_gc_warn_proc, scm_init_gc): Install a warning proc that tries to print to the current warning port, if the current warning port is a file port. (scm_gc_after_nonlocal_exit): New interface. Should be called after a nonlocal return to potentially collect memory; otherwise allocations could try to expand again when they should collect. * libguile/continuations.c (scm_i_make_continuation): * libguile/eval.c (eval): * libguile/throw.c (catch): * libguile/vm.c (scm_call_n): Call scm_gc_after_nonlocal_exit after nonlocal returns. * libguile/throw.c (abort_to_prompt, throw_without_pre_unwind): Rework to avoid allocating memory. (scm_report_out_of_memory): New interface. (scm_init_throw): Pre-allocate the arguments for stack-overflow and out-of-memory errors. * module/ice-9/boot-9.scm: Add an out-of-memory exception printer. * module/system/repl/error-handling.scm (call-with-error-handling): Add out-of-memory to the report-keys set. * libguile/gc-malloc.c (scm_realloc): Call scm_report_out_of_memory if realloc fails. * libguile/error.h: * libguile/error.c: * libguile/deprecated.h: * libguile/deprecated.c (scm_memory_error): Deprecate. * test-suite/standalone/Makefile.am: * test-suite/standalone/test-out-of-memory: New test case.
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/* classes: h_files */
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#ifndef SCM_THROW_H
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#define SCM_THROW_H
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/* Copyright (C) 1995,1996,1998,2000, 2006, 2008, 2010, 2014 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include "libguile/__scm.h"
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typedef SCM (*scm_t_catch_body) (void *data);
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typedef SCM (*scm_t_catch_handler) (void *data,
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SCM tag, SCM throw_args);
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SCM_API SCM scm_c_catch (SCM tag,
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scm_t_catch_body body,
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void *body_data,
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scm_t_catch_handler handler,
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void *handler_data,
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scm_t_catch_handler pre_unwind_handler,
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void *pre_unwind_handler_data);
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SCM_API SCM scm_c_with_throw_handler (SCM tag,
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scm_t_catch_body body,
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void *body_data,
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scm_t_catch_handler handler,
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void *handler_data,
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int lazy_catch_p);
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SCM_API SCM scm_internal_catch (SCM tag,
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scm_t_catch_body body,
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void *body_data,
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scm_t_catch_handler handler,
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void *handler_data);
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/* The first argument to scm_body_thunk should be a pointer to one of
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these. See the implementation of catch in throw.c. */
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struct scm_body_thunk_data
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{
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/* The tag being caught. We only use it to figure out what
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arguments to pass to the body procedure; see scm_catch_thunk_body for
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details. */
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SCM tag;
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/* The Scheme procedure object constituting the catch body.
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scm_body_by_proc invokes this. */
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SCM body_proc;
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};
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SCM_API SCM scm_body_thunk (void *);
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SCM_API SCM scm_handle_by_proc (void *, SCM, SCM);
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SCM_API SCM scm_handle_by_proc_catching_all (void *, SCM, SCM);
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SCM_API SCM scm_handle_by_message (void *, SCM, SCM);
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SCM_API SCM scm_handle_by_message_noexit (void *, SCM, SCM);
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SCM_API SCM scm_handle_by_throw (void *, SCM, SCM);
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SCM_API int scm_exit_status (SCM args);
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SCM_API SCM scm_catch_with_pre_unwind_handler (SCM tag, SCM thunk, SCM handler, SCM lazy_handler);
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SCM_API SCM scm_catch (SCM tag, SCM thunk, SCM handler);
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SCM_API SCM scm_with_throw_handler (SCM tag, SCM thunk, SCM handler);
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SCM_API SCM scm_ithrow (SCM key, SCM args, int no_return);
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/* This throws to the `stack-overflow' key, without running pre-unwind
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handlers. */
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SCM_API void scm_report_stack_overflow (void);
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/* This throws to the `out-of-memory' key, without running pre-unwind
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handlers. */
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SCM_API void scm_report_out_of_memory (void);
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SCM_API SCM scm_throw (SCM key, SCM args);
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SCM_INTERNAL void scm_init_throw (void);
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#endif /* SCM_THROW_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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