HTTP keep-alive connections support.
This commit is contained in:
Igor Sysoev
181
src/nxt_http.h
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181
src/nxt_http.h
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#ifndef _NXT_HTTP_H_INCLUDED_
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#define _NXT_HTTP_H_INCLUDED_
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typedef enum {
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NXT_HTTP_INVALID = 0,
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NXT_HTTP_OK = 200,
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NXT_HTTP_MULTIPLE_CHOICES = 300,
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NXT_HTTP_MOVED_PERMANENTLY = 301,
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NXT_HTTP_FOUND = 302,
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NXT_HTTP_SEE_OTHER = 303,
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NXT_HTTP_NOT_MODIFIED = 304,
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NXT_HTTP_BAD_REQUEST = 400,
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NXT_HTTP_LENGTH_REQUIRED = 411,
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NXT_HTTP_PAYLOAD_TOO_LARGE = 413,
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NXT_HTTP_URI_TOO_LONG = 414,
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NXT_HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
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NXT_HTTP_INTERNAL_SERVER_ERROR = 500,
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NXT_HTTP_NOT_IMPLEMENTED = 501,
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NXT_HTTP_BAD_GATEWAY = 502,
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NXT_HTTP_SERVICE_UNAVAILABLE = 503,
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NXT_HTTP_GATEWAY_TIMEOUT = 504,
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} nxt_http_status_t;
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typedef enum {
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NXT_HTTP_TE_NONE = 0,
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NXT_HTTP_TE_CHUNKED = 1,
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NXT_HTTP_TE_UNSUPPORTED = 2,
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} nxt_http_te_t;
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typedef struct {
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nxt_work_handler_t ready_handler;
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nxt_work_handler_t error_handler;
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} nxt_http_request_state_t;
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typedef struct nxt_http_request_s nxt_http_request_t;
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typedef struct {
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nxt_http_request_parse_t parser;
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uint8_t nbuffers;
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uint8_t keepalive; /* 1 bit */
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uint8_t chunked; /* 1 bit */
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nxt_http_te_t transfer_encoding:8; /* 2 bits */
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nxt_http_request_t *request;
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nxt_conn_t *conn;
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nxt_buf_t *buffers;
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} nxt_h1proto_t;
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typedef union {
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void *any;
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nxt_h1proto_t *h1;
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} nxt_http_proto_t;
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#define nxt_http_field_name_set(_field, _name) \
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do { \
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(_field)->name_length = sizeof(_name) - 1; \
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(_field)->name = (u_char *) _name; \
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} while (0)
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#define nxt_http_field_set(_field, _name, _value) \
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do { \
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(_field)->name_length = sizeof(_name) - 1; \
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(_field)->value_length = sizeof(_value) - 1; \
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(_field)->name = (u_char *) _name; \
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(_field)->value = (u_char *) _value; \
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} while (0)
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typedef struct {
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nxt_list_t *fields;
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nxt_http_field_t *content_type;
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nxt_http_field_t *content_length;
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nxt_off_t content_length_n;
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} nxt_http_response_t;
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struct nxt_http_request_s {
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nxt_http_proto_t proto;
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nxt_socket_conf_t *socket_conf;
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nxt_mp_t *mem_pool;
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nxt_buf_t *body;
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nxt_buf_t *out;
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const nxt_http_request_state_t *state;
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nxt_str_t target;
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nxt_str_t version;
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nxt_str_t *method;
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nxt_str_t *path;
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nxt_str_t *args;
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nxt_list_t *fields;
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nxt_http_field_t *host;
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nxt_http_field_t *content_type;
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nxt_http_field_t *content_length;
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nxt_http_field_t *cookie;
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nxt_off_t content_length_n;
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nxt_off_t rest_length;
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nxt_sockaddr_t *remote;
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nxt_sockaddr_t *local;
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nxt_http_response_t resp;
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nxt_http_status_t status:16;
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uint8_t protocol; /* 2 bits */
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uint8_t logged; /* 1 bit */
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uint8_t header_sent; /* 1 bit */
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};
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typedef void (*nxt_http_proto_body_read_t)(nxt_task_t *task,
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nxt_http_request_t *r);
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typedef void (*nxt_http_proto_local_addr_t)(nxt_task_t *task,
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nxt_http_request_t *r);
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typedef void (*nxt_http_proto_header_send_t)(nxt_task_t *task,
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nxt_http_request_t *r);
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typedef void (*nxt_http_proto_send_t)(nxt_task_t *task, nxt_http_request_t *r,
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nxt_buf_t *out);
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typedef void (*nxt_http_proto_close_t)(nxt_task_t *task,
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nxt_http_proto_t proto);
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nxt_int_t nxt_http_init(nxt_task_t *task, nxt_runtime_t *rt);
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nxt_int_t nxt_h1p_init(nxt_task_t *task, nxt_runtime_t *rt);
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nxt_int_t nxt_http_response_hash_init(nxt_task_t *task, nxt_runtime_t *rt);
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void nxt_http_conn_init(nxt_task_t *task, void *obj, void *data);
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nxt_http_request_t *nxt_http_request_create(nxt_task_t *task);
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void nxt_http_request_error(nxt_task_t *task, nxt_http_request_t *r,
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nxt_http_status_t status);
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void nxt_http_request_read_body(nxt_task_t *task, nxt_http_request_t *r);
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void nxt_http_request_local_addr(nxt_task_t *task, nxt_http_request_t *r);
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void nxt_http_request_header_send(nxt_task_t *task, nxt_http_request_t *r);
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void nxt_http_request_send(nxt_task_t *task, nxt_http_request_t *r,
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nxt_buf_t *out);
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void nxt_http_request_release(nxt_task_t *task, nxt_http_request_t *r);
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nxt_buf_t *nxt_http_request_last_buffer(nxt_task_t *task,
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nxt_http_request_t *r);
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void nxt_http_request_close_handler(nxt_task_t *task, void *obj, void *data);
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nxt_int_t nxt_http_request_host(void *ctx, nxt_http_field_t *field,
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uintptr_t data);
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nxt_int_t nxt_http_request_field(void *ctx, nxt_http_field_t *field,
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uintptr_t offset);
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nxt_int_t nxt_http_request_content_length(void *ctx, nxt_http_field_t *field,
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uintptr_t data);
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extern nxt_lvlhsh_t nxt_response_fields_hash;
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extern const nxt_conn_state_t nxt_router_conn_close_state;
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extern const nxt_http_proto_body_read_t nxt_http_proto_body_read[];
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extern const nxt_http_proto_local_addr_t nxt_http_proto_local_addr[];
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extern const nxt_http_proto_header_send_t nxt_http_proto_header_send[];
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extern const nxt_http_proto_send_t nxt_http_proto_send[];
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extern const nxt_http_proto_close_t nxt_http_proto_close[];
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#endif /* _NXT_HTTP_H_INCLUDED_ */
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