Implementing the ability to cancel request before worker starts processing it.

This commit is contained in:
Max Romanov
2017-12-27 17:46:17 +03:00
parent 45d08d5145
commit 89c0f7c5db
14 changed files with 549 additions and 364 deletions

View File

@@ -23,12 +23,14 @@
static nxt_port_mmap_header_t *
nxt_go_new_port_mmap(nxt_go_process_t *process, nxt_port_id_t id)
nxt_go_new_port_mmap(nxt_go_process_t *process, nxt_port_id_t id,
nxt_bool_t tracking)
{
int name_len, rc;
void *mem;
char name[64];
nxt_fd_t fd;
nxt_free_map_t *free_map;
nxt_port_msg_t port_msg;
nxt_go_port_mmap_t *port_mmap;
nxt_port_mmap_header_t *hdr;
@@ -101,6 +103,7 @@ nxt_go_new_port_mmap(nxt_go_process_t *process, nxt_port_id_t id)
hdr = port_mmap->hdr;
memset(hdr->free_map, 0xFFU, sizeof(hdr->free_map));
memset(hdr->free_tracking_map, 0xFFU, sizeof(hdr->free_tracking_map));
hdr->id = process->outgoing.nelts - 1;
hdr->src_pid = getpid();
@@ -108,10 +111,13 @@ nxt_go_new_port_mmap(nxt_go_process_t *process, nxt_port_id_t id)
hdr->sent_over = id;
/* Mark first chunk as busy */
nxt_port_mmap_set_chunk_busy(hdr, 0);
free_map = tracking ? hdr->free_tracking_map : hdr->free_map;
nxt_port_mmap_set_chunk_busy(free_map, 0);
/* Mark as busy chunk followed the last available chunk. */
nxt_port_mmap_set_chunk_busy(hdr, PORT_MMAP_CHUNK_COUNT);
nxt_port_mmap_set_chunk_busy(hdr->free_map, PORT_MMAP_CHUNK_COUNT);
nxt_port_mmap_set_chunk_busy(hdr->free_tracking_map, PORT_MMAP_CHUNK_COUNT);
port_msg.stream = 0;
port_msg.pid = getpid();
@@ -121,6 +127,7 @@ nxt_go_new_port_mmap(nxt_go_process_t *process, nxt_port_id_t id)
port_msg.mmap = 0;
port_msg.nf = 0;
port_msg.mf = 0;
port_msg.tracking = 0;
cmsg.cm.cmsg_len = CMSG_LEN(sizeof(int));
cmsg.cm.cmsg_level = SOL_SOCKET;
@@ -160,34 +167,34 @@ remove_fail:
nxt_port_mmap_header_t *
nxt_go_port_mmap_get(nxt_go_process_t *process, nxt_port_id_t port_id,
nxt_chunk_id_t *c)
nxt_chunk_id_t *c, nxt_bool_t tracking)
{
nxt_free_map_t *free_map;
nxt_go_port_mmap_t *port_mmap;
nxt_go_port_mmap_t *end_port_mmap;
nxt_port_mmap_header_t *hdr;
port_mmap = NULL;
hdr = NULL;
nxt_go_mutex_lock(&process->outgoing_mutex);
port_mmap = process->outgoing.elts;
end_port_mmap = port_mmap + process->outgoing.nelts;
while (port_mmap < end_port_mmap) {
for (; port_mmap < end_port_mmap; port_mmap++)
{
hdr = port_mmap->hdr;
if ( (port_mmap->hdr->sent_over == 0xFFFFu ||
port_mmap->hdr->sent_over == port_id) &&
nxt_port_mmap_get_free_chunk(port_mmap->hdr, c)) {
hdr = port_mmap->hdr;
goto unlock_return;
if (hdr->sent_over != 0xFFFFu && hdr->sent_over != port_id) {
continue;
}
port_mmap++;
free_map = tracking ? hdr->free_tracking_map : hdr->free_map;
if (nxt_port_mmap_get_free_chunk(free_map, c)) {
goto unlock_return;
}
}
hdr = nxt_go_new_port_mmap(process, port_id);
hdr = nxt_go_new_port_mmap(process, port_id, tracking);
unlock_return: