(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.
* 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.
* configure.in: Removed -lm check and added a cached check for
__libc_stack_end to get it building for mingw32 hosts.
2003-05-29 Stefan Jahn <stefan@lkcc.org>
* win32-dirent.c: Use malloc() instead of scm_malloc().
* stime.c (s_scm_strftime): Add a type cast to avoid compiler
warning.
* posix.c (s_scm_putenv): Disable use of unsetenv() for the
mingw32 build.
* modules.c (s_scm_module_import_interface): Renamed local
variable interface to _interface. Seems like 'interface'
is a special compiler directive for the mingw32 compiler.
* mkstemp.c: Provide prototype to avoid compiler warning.
* load.c (s_scm_search_path): Fixed absolute and relative
path detections for native Windows platforms.
* gc.h, threads.h: Export some more symbols using SCM_API
(necessary to build on mingw32).
* gc-freelist.c ("s_scm_map_free_list",
"s_scm_gc_set_debug_check_freelist_x"): Fixed use of FUNC_NAME.
* fports.c (fport_fill_input): Disable use of
fport_wait_for_input() on Win32 platforms.
* filesys.c (s_scm_basename): Fixed __MINGW32__ code.
* Makefile.am: Modified some rules for cross compiling.
2003-05-29 Stefan Jahn <stefan@lkcc.org>
* raw-ltdl.c: Some more modifications for mingw32 platforms.
2003-05-29 Stefan Jahn <stefan@lkcc.org>
* Makefile.am (libguile_srfi_srfi_1_la_LDFLAGS,
libguile_srfi_srfi_4_la_LDFLAGS,
libguile_srfi_srfi_13_14__la_LDFLAGS): Added the -no-undefined
option for the mingw32 build.
2003-05-29 Stefan Jahn <stefan@lkcc.org>
* standalone/Makefile.am: Setup to build on mingw32.
scm_t_timespec. Replace usage of USE_PTHREAD_THREADS with
SCM_USE_PTHREAD_THREADS. Remove typedef for struct timespec in
favor of scm_t_timespec from scmconfig.h.
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.
(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".
(scm_threads_make_mutex, scm_threads_lock_mutex,
scm_threads_unlock_mutex, scm_threads_monitor): Removed, they were
not implemented anyway.
(scm_init_thread_procs, scm_try_mutex,
scm_timed_condition_variable_wait,
scm_broadcast_condition_variable, scm_c_thread_exited_p,
scm_thread_exited_p): New prototypes.
(struct timespec): Define if not already defined.
(scm_t_mutex, scm_mutex_init, scm_mutex_lock, scm_mutex_trylock,
scm_mutex_unlock, scm_mutex_destroy, scm_t_cond, scm_cond_init,
scm_cond_wait, scm_cond_timedwait, scm_cond_signal,
scm_cond_broadcast, scm_cond_destroy): Declarations moved here and
deprecated.
* threads.c: Include <errno.h>. Include "coop-pthreads.c" when
requested.
(scm_thread_exited_p): New.
(scm_try_mutex, scm_broadcast_condition_variable): Newly
registered procedures.
(scm_wait_condition_variable, scm_timed_wait_condition_variable):
Use the latter as the procedure for "wait-condition-variable",
thus offering a optional timeout parameter to Scheme.
(scm_wait_condition_variable): Implement in terms of
scm_timed_wait_condition_variable.
(scm_mutex_init, scm_mutex_lock, scm_mutex_trylock,
scm_mutex_unlock, scm_mutex_destroy, scm_cond_init,
scm_cond_wait, scm_cond_timedwait, scm_cond_signal,
scm_cond_broadcast, scm_cond_destroy): Implement in terms of
scm_make_mutex, etc, and deprecate.
(scm_init_threads): Do not create smobs, leave this to
scm_threads_init. Do not include "threads.x" file.
(scm_init_thread_procs): New, include "threads.x" here.
* null-threads.h (scm_null_mutex, scm_null_mutex_init,
scm_null_mutex_lock, scm_null_mutex_unlock,
scm_null_mutex_destroy, scm_null_condvar, scm_null_condvar_init,
scm_null_condvar_wait, scm_null_condvar_signal,
scm_null_condvar_destroy): Removed.
(scm_mutex_init, scm_mutex_lock, scm_mutex_unlock, scm_cond_init,
scm_cond_wait, scm_cond_signal, scm_cond_broadcast,
scm_cond_destory): Do not define, they are now deprecated and
handled by threads.{h,c}.
* null-threads.c (scm_null_mutex, scm_null_cond): Define here.
(scm_threads_init): Create smobs here, using the appropriate
sizes.
(block): Removed, now unused.
(scm_c_thread_exited_p): New.
(scm_null_mutex_init, scm_null_mutex_lock, scm_null_mutex_unlock,
scm_null_mutex_destroy, scm_null_condvar_init,
scm_null_condvar_wait, scm_null_condvar_signal,
scm_null_condvar_destroy): Removed and updated users to do their
task directly.
(scm_try_mutex, timeval_subtract,
scm_timed_wait_condition_variable,
scm_broadcast_condition_variable): New.
(scm_wait_condition_variable): Removed.
* coop-threads.c (scm_threads_init): Create smobs here, using the
appropriate sizes.
(scm_c_thread_exited_p, scm_try_mutex,
scm_timed_wait_condition_variable,
scm_broadcast_condition_variable): New.
(scm_wait_condition_variable): Removed.
* threads.c: Include null-threads.c when !USE_COOP_THREADS.
(scm_init_threads): Use generic type names scm_t_mutex and
scm_t_coop instead of coop_m and coop_t.
added append docs from R4RS.
* strings.c: Docstring typo fix, + eliminate unneeded IMP tests.
Thanks Dirk Hermann!
* chars.h: Provide SCM_CHARP, SCM_CHAR, SCM_MAKE_CHAR and
deprecate SCM_ICHRP, SCM_ICHR, SCM_MAKICHR. Thanks Dirk Hermann!
* *.h, *.c: Use SCM_CHARP, SCM_CHAR, SCM_MAKE_CHAR throughout.
Drop use of SCM_P for function prototypes... assume an ANSI C
compiler. Thanks Dirk Hermann!
* scmsigs.c (usleep): Clean up oddities declaring usleep; since
we're just using it, not redefining it, we can use a K&R style
declaration here.
(sleep): Declare this, too, if the system hasn't.
(scm_sleep, scm_usleep): Use scm_thread_sleep and
scm_uthread_sleep if they're available; otherwise, just call the
system functions.
* scmconfig.h.in: Regenerated.
* threads.h (scm_single_thread_p, scm_yield,
scm_call_with_new_thread, scm_join_thread, scm_make_mutex,
scm_lock_mutex, scm_unlock_mutex, scm_make_condition_variable,
scm_wait_condition_variable, scm_signal_condition_variable): Add
prototypes for these Scheme-visible functions.
* coop-defs.h (coop_next_runnable_thread,
coop_wait_for_runnable_thread_now, coop_wait_for_runnable_thread):
Prototypes for these here, even though they're from iselect.c.
(coop_condition_variable_wait, coop_join): Add prototypes.
* coop-threads.c (scm_threads_free_thread, scm_threads_free_mutex,
scm_threads_free_condvar): Make these smob functions static.
* coop-threads.h (coop_init): Give this a real prototype.
* coop.c: #include <unistd.h>, if we have it, for `usleep' and `sleep'.
(coop_next_runnable_thread): No need to provide prototype; it's in
coop-defs.h.
