(scm_i_thread): Removed unused signal_asyncs field.
(threads_mark): Do not mark it.
(guilify_self_1): Do not initialize it. Do initialize
continuation_root field.
(do_thread_exit): Do not remove thread from all_threads list.
(on_thread_exit): Do it here, after leaving guile mode.
(sleep_level): Removed.
(scm_i_thread_put_to_sleep): Leave thread_admin_mutex locked when
returning. Do not support recursive sleeps.
(scm_i_thread_wake_up): Expect thread_admin_mutex to be locked on
entry. Do not support recursive sleeps.
SCM_CRITICAL_SECTION_END): Moved here from threads.h since now
they also block/unblock execution of asyncs and call
scm_async_click which is declared in async.h but threads.h can not
include async.h since async.h already includes threads.h.
(scm_i_critical_section_level): New, for checking mistakes in the
use of the SCM_CRITICAL_SECTION_* macros.
(scm_i_critical_section_mutex): Make it a recursive mutex so that
critical sections can be nested.
* threads.h, threads.c (scm_frame_lock_mutex): New.
(scm_frame_critical_section): Take mutex as argument.
(framed_critical_section_mutex): New, used as default for above.
(scm_init_threads): Initialize it.
(scm_threads_prehistory): Do not initialize thread_admin_mutex and
scm_i_critical_section_mutex; both are initialized statically.
print.c, ports.c, mallocs.c, hooks.c, hashtab.c, fports.c,
guardians.c, filesys.c, coop-pthreads.c, continuations.c: Use
scm_uintprint to print unsigned integers, raw heap words, and
adresses, using a cast to scm_t_bits to turn pointers into
integers.
* configure.in (isinf): Let configure find the isinf() function
on MinGW32 systems.
2004-09-03 Stefan Jahn <stefan@lkcc.org>
* threads.c (scm_threads_mark_stacks): Fixed local variable
definitions.
* strings.c (scm_i_substring_copy, s_scm_string_append): Fixed
local variable definitions.
* stime.c (_POSIX_C_SOURCE): Do not define this item on
MinGW32 because it conflicts with its pthread headers.
(s_scm_mktime): Consider the HAVE_STRUCT_TM_TM_ZONE define.
(s_scm_strftime): Using scm_from_locale_string() instead of
scm_makfrom0str().
* posix.c (s_scm_putenv): Fixed typo in the !HAVE_UNSETENV
part.
* numbers.c (scm_init_numbers): Removed check_sanity() call
inside GUILE_DEBUG. The function has been removed somewhen...
* filesys.c (_POSIX_C_SOURCE): Do not define this item on
MinGW32 because it conflicts with its pthread headers.
2004-09-03 Stefan Jahn <stefan@lkcc.org>
* srfi-1.c, srfi-1.h: Renamed any 'lst1' into 'list1' because
lst1 is a #define on Win32 systems.
be nested.
(scm_i_thread_put_to_sleep): Call scm_i_leave_guile before locking
admin mutex so that we can be put to sleep by other threads while
blocking on that mutex. Lock all the heap mutex of all threads,
including ourselves.
(scm_i_thread_wake_up): Unlock all threads, including ourselves,
call scm_i_enter_guile.
(scm_thread_mark_stacks): Expect all threads to be suspended.
SCM_NEGATE_BOOL, SCM_BOOLP): Deprecated by moving into "deprecated.h".
Replaced all uses with scm_is_false, scm_is_true, scm_from_bool, and
scm_is_bool, respectively.
* configure.in: Checking for __int64 as possible candidate for
the SCM_I_GSC_T_INT64 define.
2003-06-14 Stefan Jahn <stefan@lkcc.org>
* threads.h: Redefined scm_getspecific() and scm_setspecific()
to be functions instead of macros.
* threads.c: Conditionalized inclusion of <sys/time.h> and
<unistd.h>.
(scm_getspecific, scm_setspecific): Made these two function
real part of the API.
* posix.c (s_scm_putenv): Added some code to make a
(putenv "FOO="), i.e. setting an empty string, work also on
Win32 systems. Thanks to Kevin Ryde for the proposal.
(void *) in order to avoid an aliasing warning; thanks to Bruce
Korb.)
* stackchk.h (SCM_STACK_OVERFLOW_P): Use SCM_STACK_PTR.
* threads.c (suspend, launch_thread, scm_threads_mark_stacks): Use
SCM_STACK_PTR.
* threads.c (scm_threads_mark_stacks): Bugfix: Changed
thread->base --> t->base.
* eval.c (SCM_CEVAL): Don't cast argument of SCM_STACK_OVERFLOW_P.
symbols to expect 0 or 1 values rather than 1 or undefined.
i.e. change #ifdef to #if, etc.
* null-threads.c: fix various preprocessor usages of new public
symbols to expect 0 or 1 values rather than 1 or undefined.
i.e. change #ifdef to #if, etc.
* coop-threads.c: fix various preprocessor usages of new public
symbols to expect 0 or 1 values rather than 1 or undefined.
i.e. change #ifdef to #if, etc.
* coop-pthreads.c: fix various preprocessor usages of new public
symbols to expect 0 or 1 values rather than 1 or undefined.
i.e. change #ifdef to #if, etc.
any critical defines like _GNU_SOURCE early. Replace usage of
struct timespect with scm_t_timespec. Replace usage of
STACK_GROWS_UP with SCM_STACK_GROWS_UP. Replace usage of
USE_PTHREAD_THREADS with SCM_USE_PTHREAD_THREADS.
* gc.c (scm_gc_for_newcell), gc-malloc.c (scm_realloc,
scm_gc_register_collectable_memory): Substitute locking of
scm_i_sweep_mutex for calls to scm_i_thread_put_to_sleep.
(scm_igc): Lock sweep mutex here instead of in callers; Calls to
scm_i_thread_put_to_sleep/scm_i_thread_wake_up used to demarkate
the single-thread section (which now only contains the mark
phase).
(scm_gc): Don't lock sweeo mutex here since scm_igc locks it;
Removed SCM_DEFER/ALLOW_INTS. Simply call scm_igc directly.
* threads.c (gc_section_mutex): Removed.
thread_admin_mutex in order not to risk being joined.
(scm_i_thread_put_to_sleep, scm_i_thread_wake_up): Keep
thread_admin_mutex locked during GC.
* pthread-threads.c, pthread-threads.h: Improvements to debugging
functions.
(thread_print): Print thread number as well as address of thread
structure.
(scm_join_thread): Bugfix.
(scm_lock_mutex, scm_try_mutex, scm_unlock_mutex,
scm_timed_wait_condition_variable, scm_signal_condition_variable,
scm_broadcast_condition_variable): Use the low-level API.
(scm_all_threads): Return copy of thread list (to prevent
unintended destruction).
(scm_threads_prehistory): Initialize heap_mutex of fake thread.
Simply lock a thread C API recursive mutex.
(SCM_NONREC_CRITICAL_SECTION_START,
SCM_NONREC_CRITICAL_SECTION_END, SCM_REC_CRITICAL_SECTION_START,
SCM_REC_CRITICAL_SECTION_END): Removed.
* eval.c: Replaced SOURCE_SECTION_START / SOURCE_SECTION_END with
direct calls to scm_rec_mutex_lock / unlock around the three calls
to scm_m_expand_body.
* eval.c, eval.h (promise_free): New function.
(scm_force): Rewritten; Now thread-safe; Removed
SCM_DEFER/ALLOW_INTS.
* pthread-threads.h: Added partially implemented plugin interface
for recursive mutexes. These are, for now, only intended to be
used internally within the Guile implementation.
* pthread-threads.c: New file.
* threads.c: Conditionally #include "pthread-threads.c".
* eval.c, eval.h (scm_makprom, scm_force): Rewritten to be
thread-safe;
* snarf.h (SCM_MUTEX, SCM_GLOBAL_MUTEX, SCM_REC_MUTEX,
SCM_GLOBAL_REC_MUTEX): New macros.
* eval.c, threads.c, threads.h, snarf.h: Rewrote critical section
macros---use mutexes instead.
* tags.h (SCM_IM_FUTURE): New tag.
* eval.c (scm_m_future): New primitive macro.
(SCM_CEVAL): Support futures.
(unmemocopy): Support unmemoization of futures.
* print.c (scm_isymnames): Name of future isym.
* gc.c (scm_gc_sweep): Call it here instead, which is a more
logical place.
* threads.c (create_thread): Remember root object until the handle
of the new thread is on all_threads list.
* root.c (scm_make_root): Moved copying of fluids until after
creation of root handle so that the fluids are GC protected. Also
removed the critical section.
(SCM_NONREC_CRITICAL_SECTION_START,
SCM_NONREC_CRITICAL_SECTION_END, SCM_REC_CRITICAL_SECTION_START,
SCM_REC_CRITICAL_SECTION_END): New macros.
(SCM_CRITICAL_SECTION_START/END): Defined here.
* eval.c: Insert SOURCE_SECTION_START / SOURCE_SECTION_END around
the three calls to scm_m_expand_body.
* gc.h: #include "libguile/pthread-threads.h";
(SCM_FREELIST_CREATE, SCM_FREELIST_LOC): New macros.
* gc.c (scm_i_freelist, scm_i_freelist2): Defined to be of type
scm_t_key;
* gc.c, gc-freelist.c, inline.h: Use SCM_FREELIST_LOC for freelist
access.
* gc-freelist.c (scm_gc_init_freelist): Create freelist keys.
* gc-freelist.c, threads.c (really_launch): Use
SCM_FREELIST_CREATE.
* gc-malloc.c (scm_realloc, scm_gc_register_collectable_memory):
* gc.c (scm_i_expensive_validation_check, scm_gc,
scm_gc_for_newcell): Put threads to sleep before doing GC-related
heap administration so that those pieces of code are executed
single-threaded. We might consider rewriting these code sections
in terms of a "call_gc_code_singly_threaded" construct instead of
calling the pair of scm_i_thread_put_to_sleep () and
scm_i_thread_wake_up (). Also, we would want to have as many of
these sections eleminated.
* init.c (scm_init_guile_1): Call scm_threads_prehistory.
* inline.h: #include "libguile/threads.h"
* pthread-threads.h: Macros now conform more closely to the
pthreads interface. Some of them now take a second argument.
* threads.c, threads.h: Many changes.
* configure.in: Temporarily replaced "copt" threads option with new
option "pthreads".
(USE_PTHREAD_THREADS): Define if pthreads configured.
"libguile/pthread-threads.h" for USE_COPT_THREADS. Removed
(previously deprecated) C level thread API prototypes. They are
now in the thread package specific headers, "null-threads.h" and
"pthread-threads.h".
(SCM_VALIDATE_THREAD, SCM_VALIDATE_MUTEX, SCM_VALIDATE_CONDVAR):
New.
(scm_threads_init): Removed.
(SCM_CRITICAL_SECTION_START, SCM_CRITICAL_SECTION_END,
SCM_THREAD_SWITCHING_CODE, scm_i_switch_counter,
SCM_I_THREAD_SWITCH_COUNT): Define here.
(scm_single_thread_p): Removed.
(scm_call_with_new_thread): Take two args directly instead of list
of two args.
(scm_i_thread_data, scm_i_set_thread_data, SCM_THREAD_LOCAL_DATA,
SCM_SET_THREAD_LOCAL_DATA): Define here.
* threads.c: Merged with "coop-pthreads.c".
