1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
#ifndef _NXT_PORT_MEMORY_H_INCLUDED_
#define _NXT_PORT_MEMORY_H_INCLUDED_
#define PORT_MMAP_MIN_SIZE (3 * sizeof(uint32_t))
typedef struct nxt_port_mmap_header_s nxt_port_mmap_header_t;
void
nxt_port_mmap_destroy(nxt_port_mmap_t *port_mmap);
/*
* Allocates nxt_but_t structure from port's mem_pool, assigns this buf 'mem'
* pointers to first available shared mem bucket(s). 'size' used as a hint to
* acquire several successive buckets if possible.
*
* This function assumes that current thread operates the 'port' exclusively.
*/
nxt_buf_t *
nxt_port_mmap_get_buf(nxt_task_t *task, nxt_port_t *port, size_t size);
nxt_port_mmap_t *
nxt_port_incoming_port_mmap(nxt_task_t *task, nxt_process_t *process,
nxt_fd_t fd);
void
nxt_port_mmap_write(nxt_task_t *task, nxt_port_t *port,
nxt_port_send_msg_t *msg, nxt_sendbuf_coalesce_t *sb);
nxt_inline void
nxt_port_mmap_completion(nxt_task_t *task, nxt_work_queue_t *wq, nxt_buf_t *b) {
nxt_work_queue_add(wq, b->completion_handler, task, b, b->parent);
}
void
nxt_port_mmap_read(nxt_task_t *task, nxt_port_t *port,
nxt_port_recv_msg_t *msg, size_t size);
enum nxt_port_method_e {
NXT_PORT_METHOD_ANY = 0,
NXT_PORT_METHOD_PLAIN,
NXT_PORT_METHOD_MMAP
};
typedef enum nxt_port_method_e nxt_port_method_t;
nxt_port_method_t
nxt_port_mmap_get_method(nxt_task_t *task, nxt_port_t *port, nxt_buf_t *b);
#endif /* _NXT_PORT_MEMORY_H_INCLUDED_ */
|
