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places: fixes from Matthew's code review of places

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This commit is contained in:
Kevin Tew 2011-05-12 16:27:45 -06:00
parent 387b6c51dd
commit 3ca3544a28
2 changed files with 46 additions and 36 deletions
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3
src/racket/src/mzmark_place.inc
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@ -59,11 +59,8 @@ static int place_async_channel_val_SIZE(void *p, struct NewGC *gc) {
static int place_async_channel_val_MARK(void *p, struct NewGC *gc) {
Scheme_Place_Async_Channel *pac = (Scheme_Place_Async_Channel *)p;
int i;
gcMARK2(pac->msgs, gc);
gcMARK2(pac->msg_memory, gc);
for (i = pac->size; i--; )
gcMARK2(pac->msgs[i], gc);
return
gcBYTES_TO_WORDS(sizeof(Scheme_Place_Async_Channel));

79
src/racket/src/place.c
View File

@ -140,25 +140,10 @@ typedef struct Place_Start_Data {
Scheme_Object *function;
Scheme_Object *channel;
Scheme_Object *current_library_collection_paths;
mzrt_sema *ready;
void *place_obj;
mzrt_sema *ready; /* malloc'ed item */
void *place_obj; /* malloc'ed item */
} Place_Start_Data;
static Scheme_Object *def_place_exit_handler_proc(int argc, Scheme_Object *argv[])
{
intptr_t status;
if (SCHEME_INTP(argv[0])) {
status = SCHEME_INT_VAL(argv[0]);
if (status < 1 || status > 255)
status = 0;
} else
status = 0;
mz_proc_thread_exit((void *) status);
return scheme_void; /* Never get here */
}
static void null_out_runtime_globals() {
scheme_current_thread = NULL;
scheme_first_thread = NULL;
@ -254,9 +239,13 @@ Scheme_Object *scheme_place(int argc, Scheme_Object *args[]) {
here until the other place is far enough. */
mzrt_sema_wait(ready);
mzrt_sema_destroy(ready);
place_data->ready = NULL;
place_data->place_obj = NULL;
place->proc_thread = proc_thread;
{
Scheme_Custodian *cust;
Scheme_Custodian_Reference *mref;
@ -283,6 +272,8 @@ static int place_kill(Scheme_Place *place) {
ref = --place_obj->ref;
place_obj->die = 1;
if (ref != 0) { scheme_signal_received_at(place_obj->signal_handle); }
mzrt_mutex_unlock(place_obj->lock);
}
@ -303,10 +294,11 @@ static int place_break(Scheme_Place *place) {
place_obj->pbreak = 1;
scheme_signal_received_at(place_obj->signal_handle);
mzrt_mutex_unlock(place_obj->lock);
}
scheme_signal_received_at(place_obj->signal_handle);
return 0;
}
@ -1532,6 +1524,41 @@ void scheme_place_check_for_interruption() {
scheme_break_thread(NULL);
}
}
static void place_release_place_object() {
int ref = 0;
Scheme_Place_Object *place_obj = (Scheme_Place_Object *) place_object;
if (place_obj) {
mzrt_mutex_lock(place_obj->lock);
ref = --place_obj->ref;
place_obj->die = 1;
mzrt_mutex_unlock(place_obj->lock);
if (ref == 0) { free(place_object); }
place_object = NULL;
}
}
static Scheme_Object *def_place_exit_handler_proc(int argc, Scheme_Object *argv[])
{
intptr_t status;
if (SCHEME_INTP(argv[0])) {
status = SCHEME_INT_VAL(argv[0]);
if (status < 1 || status > 255)
status = 0;
} else
status = 0;
scheme_log(NULL, SCHEME_LOG_DEBUG, 0, "place %d: exiting via (exit)", scheme_current_place_id);
/*printf("Leavin place: proc thread id%u\n", ptid);*/
scheme_place_instance_destroy();
place_release_place_object();
mz_proc_thread_exit((void *) status);
return scheme_void; /* Never get here */
}
static void *place_start_proc_after_stack(void *data_arg, void *stack_base) {
Place_Start_Data *place_data;
@ -1624,20 +1651,7 @@ static void *place_start_proc_after_stack(void *data_arg, void *stack_base) {
/*printf("Leavin place: proc thread id%u\n", ptid);*/
scheme_place_instance_destroy();
{
int ref = 0;
place_obj = (Scheme_Place_Object *) place_object;
if (place_obj) {
mzrt_mutex_lock(place_obj->lock);
ref = --place_obj->ref;
place_obj->die = 1;
mzrt_mutex_unlock(place_obj->lock);
if (ref == 0) { free(place_object); }
place_object = NULL;
}
}
place_release_place_object();
return (void*) rc;
}
@ -1984,7 +1998,6 @@ Scheme_Place_Async_Channel *scheme_place_async_channel_create() {
ch->msgs = msgs;
ch->msg_memory = msg_memory;
ch->wakeup_signal = NULL;
scheme_register_finalizer(ch, async_channel_finialize, NULL, NULL, NULL);
return ch;
}