77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
|
|
/*
|
|
* Copyright (C) Max Romanov
|
|
* Copyright (C) NGINX, Inc.
|
|
*/
|
|
|
|
#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;
|
|
typedef struct nxt_port_mmap_handler_s nxt_port_mmap_handler_t;
|
|
|
|
void nxt_port_mmaps_destroy(nxt_port_mmaps_t *port_mmaps, nxt_bool_t free_elts);
|
|
|
|
typedef struct nxt_port_mmap_tracking_s nxt_port_mmap_tracking_t;
|
|
|
|
struct nxt_port_mmap_tracking_s {
|
|
void *mmap_handler;
|
|
nxt_atomic_t *tracking;
|
|
};
|
|
|
|
nxt_int_t
|
|
nxt_port_mmap_get_tracking(nxt_task_t *task, nxt_port_mmaps_t *mmaps,
|
|
nxt_port_mmap_tracking_t *tracking, uint32_t stream);
|
|
|
|
nxt_bool_t
|
|
nxt_port_mmap_tracking_cancel(nxt_task_t *task,
|
|
nxt_port_mmap_tracking_t *tracking, uint32_t stream);
|
|
|
|
nxt_int_t
|
|
nxt_port_mmap_tracking_write(uint32_t *buf, nxt_port_mmap_tracking_t *t);
|
|
|
|
nxt_bool_t
|
|
nxt_port_mmap_tracking_read(nxt_task_t *task, nxt_port_recv_msg_t *msg);
|
|
|
|
/*
|
|
* Allocates nxt_but_t structure from task's thread engine 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.
|
|
*/
|
|
nxt_buf_t *
|
|
nxt_port_mmap_get_buf(nxt_task_t *task, nxt_port_mmaps_t *mmaps, size_t size);
|
|
|
|
nxt_int_t nxt_port_mmap_increase_buf(nxt_task_t *task, nxt_buf_t *b,
|
|
size_t size, size_t min_size);
|
|
|
|
nxt_port_mmap_handler_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, void *mmsg_buf);
|
|
|
|
void
|
|
nxt_port_mmap_read(nxt_task_t *task, nxt_port_recv_msg_t *msg);
|
|
|
|
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);
|
|
|
|
nxt_int_t nxt_shm_open(nxt_task_t *task, size_t size);
|
|
|
|
void nxt_process_broadcast_shm_ack(nxt_task_t *task, nxt_process_t *process);
|
|
|
|
#endif /* _NXT_PORT_MEMORY_H_INCLUDED_ */
|