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

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Max Romanov
2017-12-27 17:46:17 +03:00
parent 45d08d5145
commit 89c0f7c5db
14 changed files with 549 additions and 364 deletions
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27
src/nxt_port.h
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@@ -102,13 +102,21 @@ typedef struct {
nxt_port_id_t reply_port;
uint8_t type;
/* Last message for this stream. */
uint8_t last; /* 1 bit */
/* Message data send using mmap, next chunk is a nxt_port_mmap_msg_t. */
uint8_t mmap; /* 1 bit */
uint8_t nf;
uint8_t mf;
/* Non-First fragment in fragmented message sequence. */
uint8_t nf; /* 1 bit */
/* More Fragments followed. */
uint8_t mf; /* 1 bit */
/* Message delivery tracking enabled, next chunk is tracking msg. */
uint8_t tracking; /* 1 bit */
} nxt_port_msg_t;
@@ -119,6 +127,7 @@ typedef struct {
nxt_fd_t fd;
nxt_bool_t close_fd;
nxt_port_msg_t port_msg;
uint32_t tracking_msg[2];
nxt_work_t work;
} nxt_port_send_msg_t;
@@ -130,6 +139,7 @@ struct nxt_port_recv_msg_s {
nxt_port_t *port;
nxt_port_msg_t port_msg;
size_t size;
nxt_bool_t cancelled;
union {
nxt_port_t *new_port;
nxt_pid_t removed_pid;
@@ -221,9 +231,18 @@ void nxt_port_write_enable(nxt_task_t *task, nxt_port_t *port);
void nxt_port_write_close(nxt_port_t *port);
void nxt_port_read_enable(nxt_task_t *task, nxt_port_t *port);
void nxt_port_read_close(nxt_port_t *port);
nxt_int_t nxt_port_socket_write(nxt_task_t *task, nxt_port_t *port,
nxt_int_t nxt_port_socket_twrite(nxt_task_t *task, nxt_port_t *port,
nxt_uint_t type, nxt_fd_t fd, uint32_t stream, nxt_port_id_t reply_port,
nxt_buf_t *b);
nxt_buf_t *b, void *tracking);
nxt_inline nxt_int_t
nxt_port_socket_write(nxt_task_t *task, nxt_port_t *port,
nxt_uint_t type, nxt_fd_t fd, uint32_t stream, nxt_port_id_t reply_port,
nxt_buf_t *b)
{
return nxt_port_socket_twrite(task, port, type, fd, stream, reply_port, b,
NULL);
}
void nxt_port_enable(nxt_task_t *task, nxt_port_t *port,
nxt_port_handlers_t *handlers);