/* Get the internal representation of a connection */
static inline struct intern_connection *net_conn_get_internal(net_connection_t nc)
{
struct intern_connection *ic;
ic = cos_map_lookup(&connections, nc);
return ic;
}
static inline struct evt *mapping_find(long extern_evt)
{
struct evt *e = cos_map_lookup(&evt_map, extern_evt);
if (NULL == e) return e;
assert(e->extern_id == extern_evt);
return e;
}
struct cos_cbuf_item *mgr_get_client_mem(struct spd_tmem_info *sti)
{
spdid_t s_spdid;
/* struct cb_desc *d; */
struct cos_cbuf_item *cci = NULL, *list;
assert(sti);
s_spdid = sti->spdid;
list = &spd_tmem_info_list[s_spdid].tmem_list;
for (cci = FIRST_LIST(list, next, prev) ;
cci != list ;
cci = FIRST_LIST(cci, next, prev)) {
union cbuf_meta cm;
cm.c_0.v = cci->entry->c_0.v;
if (!CBUF_IN_USE(cm.c.flags)) break;
}
if (cci == list) goto err;
assert(&cci->desc == cos_map_lookup(&cb_ids, cci->desc.cbid));
/* struct cb_mapping *m; */
/* m = FIRST_LIST(&cci->desc.owner, next, prev); */
mgr_remove_client_mem(sti, cci);
DOUT("spd: %d Leaving get cli mem:: num_allocated %d num_desired %d\n",s_spdid, sti->num_allocated, sti->num_desired);
done:
return cci;
err:
cci = NULL;
goto done;
}
static int http_read_write(spdid_t spdid, long connection_id, char *reqs, int req_sz, char *resp, int resp_sz)
{
struct connection *c;
c = cos_map_lookup(&conn_map, connection_id);
if (NULL == c) return -EINVAL;
return connection_process_requests(c, reqs, req_sz, resp, resp_sz);
}
int content_read(spdid_t spdid, long connection_id, char *buff, int sz)
{
struct connection *c;
// printc("HTTP read");
c = cos_map_lookup(&conn_map, connection_id);
if (NULL == c) return -EINVAL;
return connection_get_reply(c, buff, sz);
}
int content_write(spdid_t spdid, long connection_id, char *reqs, int sz)
{
struct connection *c;
// printc("HTTP write");
c = cos_map_lookup(&conn_map, connection_id);
if (NULL == c) return -EINVAL;
if (connection_parse_requests(c, reqs, sz)) return -EINVAL;
return sz;
}
int content_remove(spdid_t spdid, long conn_id)
{
struct connection *c = cos_map_lookup(&conn_map, conn_id);
if (NULL == c) return 1;
cos_map_del(&conn_map, c->conn_id);
c->conn_id = -1;
http_free_connection(c);
/* bookkeeping */
http_conn_cnt++;
return 0;
}
struct connection *connmgr_accept(int fd)
{
struct sockaddr_in sai;
int new_fd;
unsigned int len = sizeof(sai);
struct connection *c;
long c_id;
new_fd = accept(fd, (struct sockaddr *)&sai, &len);
if (-1 == new_fd) {
perror("accept");
return NULL;
}
c_id = http_open_connection(new_fd);
c = cos_map_lookup(&conn_map, c_id);
if (NULL == c) http_close_connection(c_id);
return c;
}
static struct rec_data_tor *
map_rd_lookup(td_t tid)
{
return (struct rec_data_tor *)cos_map_lookup(&uniq_tids, tid);
}
static struct rec_data_lk *
rdlk_lookup(int id)
{
return (struct rec_data_lk *)cos_map_lookup(&uniq_lkids, id);
}
// block_cli_if_tracking_map_fn pred 1 start
desc_global_false
// block_cli_if_tracking_map_fn pred 1 end
// block_cli_if_tracking_map_fn 1 start
static inline struct desc_track *call_desc_lookup(int id) {
return (struct desc_track *)cos_map_lookup(&IDL_service_desc_maps, id);
}
void *
cbuf_c_retrieve(spdid_t spdid, int cbid, int len)
{
void *ret = NULL;
char *l_addr, *d_addr;
struct cb_desc *d;
struct cb_mapping *m;
TAKE();
d = cos_map_lookup(&cb_ids, cbid);
/* sanity and access checks */
if (!d || d->obj_sz < len) goto done;
#ifdef PRINCIPAL_CHECKS
if (d->principal != cos_get_thd_id()) goto done;
#endif
/* DOUT("info: thd_id %d obj_size %d addr %p\n", d->principal, d->obj_sz, d->addr); */
m = malloc(sizeof(struct cb_mapping));
if (!m) goto done;
/* u64_t start,end; */
/* rdtscll(start); */
INIT_LIST(m, next, prev);
d_addr = valloc_alloc(cos_spd_id(), spdid, 1);
l_addr = d->addr; //cbuf_item addr, initialized in cos_init()
/* l_addr = d->owner.addr; // mapped from owner */
assert(d_addr && l_addr);
/* rdtscll(end); */
/* printc("cost of valloc: %lu\n", end-start); */
/* rdtscll(start); */
/* if (!mman_alias_page(cos_spd_id(), (vaddr_t)d->addr, spdid, (vaddr_t)page)) goto err; */
if (unlikely(!mman_alias_page(cos_spd_id(), (vaddr_t)l_addr, spdid, (vaddr_t)d_addr))) {
printc("No alias!\n");
goto err;
}
/* DOUT("<<<MAPPED>>> mgr addr %p client addr %p\n ",l_addr, d_addr); */
/* rdtscll(end); */
/* printc("cost of mman_alias_page: %lu\n", end-start); */
m->cbd = d;
m->spd = spdid;
m->addr = (vaddr_t)d_addr;
//struct cb_mapping *m;
ADD_LIST(&d->owner, m, next, prev);
ret = (void *)d_addr;
done:
RELEASE();
return ret;
err:
valloc_free(cos_spd_id(), spdid, d_addr, 1);
free(m);
goto done;
}
int
cbuf_c_create(spdid_t spdid, int size, long cbid)
{
int ret = -1;
void *v;
struct spd_tmem_info *sti;
struct cos_cbuf_item *cbuf_item;
struct cb_desc *d;
union cbuf_meta *mc = NULL;
/* DOUT("thd: %d spd: %d cbuf_c_create is called here!!\n", cos_get_thd_id(), spdid); */
/* DOUT("passed cbid is %ld\n",cbid); */
TAKE();
sti = get_spd_info(spdid);
/* Make sure we have access to the component shared page */
assert(SPD_IS_MANAGED(sti));
assert(cbid >= 0);
if (cbid) {
// vector should already exist
v = cos_map_lookup(&cb_ids, cbid);
if (unlikely((spdid_t)(int)v != spdid)) goto err;
} else {
cbid = cos_map_add(&cb_ids, (void *)(unsigned long)spdid);
if ((mc = __spd_cbvect_lookup_range(sti, (cbid))) == NULL){
RELEASE();
return cbid*-1;
}
}
cos_map_del(&cb_ids, cbid);
cbuf_item = tmem_grant(sti);
assert(cbuf_item);
d = &cbuf_item->desc;
d->principal = cos_get_thd_id();
d->obj_sz = PAGE_SIZE;
d->owner.spd = sti->spdid;
d->owner.cbd = d;
/* Jiguo:
This can be two different cases:
1. A local cached one is returned with a cbid
2. A cbuf item is obtained from the global free list without cbid
*/
DOUT("d->cbid is %d\n",d->cbid);
if (d->cbid == 0) {
INIT_LIST(&d->owner, next, prev); // only created when first time
cbid = cos_map_add(&cb_ids, d); // we use a new cbuf
DOUT("new cbid is %ld\n",cbid);
} else {
cbid = cbuf_item->desc.cbid; // use a local cached one
DOUT("cached cbid is %ld\n",cbid);
}
DOUT("cbuf_create:::new cbid is %ld\n",cbid);
ret = d->cbid = cbid;
mc = __spd_cbvect_lookup_range(sti, cbid);
assert(mc);
cbuf_item->entry = mc;
mc->c.ptr = d->owner.addr >> PAGE_ORDER;
mc->c.obj_sz = ((unsigned int)PAGE_SIZE) >> CBUF_OBJ_SZ_SHIFT;
mc->c_0.th_id = cos_get_thd_id();
mc->c.flags |= CBUFM_IN_USE | CBUFM_TOUCHED;
done:
RELEASE();
return ret;
err:
ret = -1;
goto done;
}