/**
- @Global_define:
- Order_queue<unsigned int*> spec_queue;
+ @Global_define:
+ @Options:
+ LANG = CPP;
+ CLASS = mpmc_boundq_1_alt;
+ @DeclareStruct:
+ typedef struct elem {
+ t_element *pos;
+ boolean written;
+ thread_id_t tid;
+ call_id_t id;
+ } elem;
+ @DeclareVar:
+ spec_list *list;
+ id_tag_t *tag;
+ @InitVar:
+ list = new_spec_list();
+ tag = new_id_tag();
+ @DefineFunc:
+ elem* new_elem(t_element *pos, call_id_t id, thread_id_t tid) {
+ elem *e = (elem*) MODEL_MALLOC(sizeof(elem));
+ e->pos = pos;
+ e->written = false;
+ e->id = id;
+ e->tid = tid;
+ }
+ @DefineFunc:
+ elem* get_elem_by_pos(t_element *pos) {
+ for (int i = 0; i < size(list); i++) {
+ elem *e = (elem*) elem_at_index(list, i);
+ if (e->pos == pos) {
+ return e;
+ }
+ }
+ return NULL;
+ }
+ @DefineFunc:
+ elem* get_elem_by_tid(thread_id_t tid) {
+ for (int i = 0; i < size(list); i++) {
+ elem *e = (elem*) elem_at_index(list, i);
+ if (e->tid== tid) {
+ return e;
+ }
+ }
+ return NULL;
+ }
+ @DefineFunc:
+ int elem_idx_by_pos(t_element *pos) {
+ for (int i = 0; i < size(list); i++) {
+ elem *existing = (elem*) elem_at_index(list, i);
+ if (pos == existing->pos) {
+ return i;
+ }
+ }
+ return -1;
+ }
+ @DefineFunc:
+ int elem_idx_by_tid(thread_id_t tid) {
+ for (int i = 0; i < size(list); i++) {
+ elem *existing = (elem*) elem_at_index(list, i);
+ if (tid == existing->tid) {
+ return i;
+ }
+ }
+ return -1;
+ }
+ @DefineFunc:
+ call_id_t prepare_id() {
+ return get_and_inc(tag);
+ }
+ @DefineFunc:
+ bool prepare_check(t_element *pos, thread_id_t tid) {
+ elem *e = get_elem_by_tid(tid);
+ return NULL == e;
+ }
+ @DefineFunc:
+ void prepare(call_id_t id, t_element *pos, thread_id_t tid) {
+ call_id_t id = get_and_inc(tag);
+ elem *e = new_elem(pos, id, tid);
+ push_back(list, e);
+ }
+ @DefineFunc:
+ call_id_t publish_id(thread_id_t tid) {
+ elem *e = get_elem_by_tid(tid);
+ if (NULL == e)
+ return DEFAULT_CALL_ID;
+ return e->id;
+ }
+ @DefineFunc:
+ bool publish_check(thread_id_t tid) {
+ elem *e = get_elem_by_tid(tid);
+ if (NULL == e)
+ return false;
+ return e->written;
+ }
+ @DefineFunc:
+ void publish(thread_id_t tid) {
+ elem *e = get_elem_by_tid(tid);
+ e->written = true;
+ }
+ @DefineFunc:
+ call_id_t fetch_id(t_element *pos) {
+ elem *e = get_elem_by_pos(pos);
+ if (NULL == e)
+ return DEFAULT_CALL_ID;
+ return e->id;
+ }
+ @DefineFunc:
+ bool fetch_check(t_element *pos) {
+ int idx = elem_idx_by_pos(pos);
+ if (idx == -1)
+ return false;
+ else
+ return true;
+ }
+ @DefineFunc:
+ void fetch(t_element *pos) {
+ int idx = elem_idx_by_pos(pos);
+ if (idx == -1)
+ return;
+ remove_at_index(list, idx);
+ }
+ @DefineFunc:
+ bool consume_check(thread_id_t tid) {
+ elem *e = get_elem_by_tid(tid);
+ if (NULL == e)
+ return false;
+ return e->written;
+ }
+ @DefineFunc:
+ call_id_t consume_id(thread_id_t tid) {
+ elem *e = get_elem_by_tid(tid);
+ if (NULL == e)
+ return DEFAULT_CALL_ID;
+ return e->id;
+ }
+ @DefineFunc:
+ void consume(thread_id_t tid) {
+ int idx = elem_idx_by_tid(tid);
+ if (idx == -1)
+ return;
+ remove_at_index(list, idx);
+ }
+ @Happens_before:
+ Prepare -> Fetch
+ Publish -> Consume
+ @End
*/
//-----------------------------------------------------
+ /**
+ @Begin
+ @Interface: Fetch
+ @Commit_point_set: Fetch_Point
+ @ID: fetch_id(__RET__)
+ @Check:
+ fetch_check(__RET__)
+ @Action:
+ fetch(__RET__);
+ @End
+ */
t_element * read_fetch() {
unsigned int rdwr = m_rdwr.load(mo_acquire);
unsigned int rd,wr;
t_element * p = & ( m_array[ rd % t_size ] );
- /**
- @Commit_point_Check: true
- @Label: ANY
- @Check:
- spec_queue.peak() == p
- */
return p;
}
+ /**
+ @Begin
+ @Interface: Consume
+ @Commit_point_set: Consume_Point
+ @ID: consume_id(__TID__)
+ @Check:
+ consume_check(__TID__)
+ @Action:
+ consume(__TID__);
+ @End
+ */
void read_consume() {
m_read.fetch_add(1,mo_release);
- /**
- @Commit_point_define: true
- @Label: Read_Consume_Success
- @Check:
- spec_queue.size() > 0
- @Action:
- spec_queue.remove();
- */
}
//-----------------------------------------------------
+ /**
+ @Begin
+ @Interface: Prepare
+ @Commit_point_set: Prepare_Point
+ @ID: prepare_id(__RET__)
+ @Check:
+ prepare_check(__RET__)
+ @Action:
+ prepare(__RET__);
+ @End
+ */
t_element * write_prepare() {
unsigned int rdwr = m_rdwr.load(mo_acquire);
unsigned int rd,wr;
t_element * p = & ( m_array[ wr % t_size ] );
- /**
- @Commit_point_check: ANY
- @Action: spec_queue.add(p);
- */
return p;
}
+ /**
+ @Begin
+ @Interface: Publish
+ @Commit_point_set: Publish_Point
+ @ID: publish_id(__TID__)
+ @Check:
+ publish_check(__TID__)
+ @Action:
+ publish(__TID__);
+ @End
+ */
void write_publish()
{
m_written.fetch_add(1,mo_release);
projects / cdsspec-compiler.git / blobdiff