Integrate TLDK with NGINX

Created a clone of nginx (from https://github.com/nginx/nginx)
to demonstrate and benchmark TLDK library integrated with real
world application.
A new nginx module is created and and BSD socket-like API is implemented
on top of native TLDK API.
Note, that right now only minimalistic subset of socket-like API is provided:
- accept
- close
- readv
- recv
- writev
so only limited nginx functionality is available for a moment.

Change-Id: Ie1efe9349a0538da4348a48fb8306cbf636b5a92
Signed-off-by: Mohammad Abdul Awal <mohammad.abdul.awal@intel.com>
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Signed-off-by: Remy Horton <remy.horton@intel.com>
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

1 files changed, 176 insertions, 0 deletions

diff --git a/app/nginx/src/http/ngx_http.h b/app/nginx/src/http/ngx_http.h
new file mode 100644
index 0000000..afab4f6
--- /dev/null
+++ b/app/nginx/src/http/ngx_http.h
@@ -0,0 +1,176 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#ifndef _NGX_HTTP_H_INCLUDED_
+#define _NGX_HTTP_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+typedef struct ngx_http_request_s     ngx_http_request_t;
+typedef struct ngx_http_upstream_s    ngx_http_upstream_t;
+typedef struct ngx_http_cache_s       ngx_http_cache_t;
+typedef struct ngx_http_file_cache_s  ngx_http_file_cache_t;
+typedef struct ngx_http_log_ctx_s     ngx_http_log_ctx_t;
+typedef struct ngx_http_chunked_s     ngx_http_chunked_t;
+typedef struct ngx_http_v2_stream_s   ngx_http_v2_stream_t;
+
+typedef ngx_int_t (*ngx_http_header_handler_pt)(ngx_http_request_t *r,
+    ngx_table_elt_t *h, ngx_uint_t offset);
+typedef u_char *(*ngx_http_log_handler_pt)(ngx_http_request_t *r,
+    ngx_http_request_t *sr, u_char *buf, size_t len);
+
+
+#include <ngx_http_variables.h>
+#include <ngx_http_config.h>
+#include <ngx_http_request.h>
+#include <ngx_http_script.h>
+#include <ngx_http_upstream.h>
+#include <ngx_http_upstream_round_robin.h>
+#include <ngx_http_core_module.h>
+
+#if (NGX_HTTP_V2)
+#include <ngx_http_v2.h>
+#endif
+#if (NGX_HTTP_CACHE)
+#include <ngx_http_cache.h>
+#endif
+#if (NGX_HTTP_SSI)
+#include <ngx_http_ssi_filter_module.h>
+#endif
+#if (NGX_HTTP_SSL)
+#include <ngx_http_ssl_module.h>
+#endif
+
+
+struct ngx_http_log_ctx_s {
+    ngx_connection_t    *connection;
+    ngx_http_request_t  *request;
+    ngx_http_request_t  *current_request;
+};
+
+
+struct ngx_http_chunked_s {
+    ngx_uint_t           state;
+    off_t                size;
+    off_t                length;
+};
+
+
+typedef struct {
+    ngx_uint_t           http_version;
+    ngx_uint_t           code;
+    ngx_uint_t           count;
+    u_char              *start;
+    u_char              *end;
+} ngx_http_status_t;
+
+
+#define ngx_http_get_module_ctx(r, module)  (r)->ctx[module.ctx_index]
+#define ngx_http_set_ctx(r, c, module)      r->ctx[module.ctx_index] = c;
+
+
+ngx_int_t ngx_http_add_location(ngx_conf_t *cf, ngx_queue_t **locations,
+    ngx_http_core_loc_conf_t *clcf);
+ngx_int_t ngx_http_add_listen(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
+    ngx_http_listen_opt_t *lsopt);
+
+
+void ngx_http_init_connection(ngx_connection_t *c);
+void ngx_http_close_connection(ngx_connection_t *c);
+
+#if (NGX_HTTP_SSL && defined SSL_CTRL_SET_TLSEXT_HOSTNAME)
+int ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg);
+#endif
+
+ngx_int_t ngx_http_parse_request_line(ngx_http_request_t *r, ngx_buf_t *b);
+ngx_int_t ngx_http_parse_uri(ngx_http_request_t *r);
+ngx_int_t ngx_http_parse_complex_uri(ngx_http_request_t *r,
+    ngx_uint_t merge_slashes);
+ngx_int_t ngx_http_parse_status_line(ngx_http_request_t *r, ngx_buf_t *b,
+    ngx_http_status_t *status);
+ngx_int_t ngx_http_parse_unsafe_uri(ngx_http_request_t *r, ngx_str_t *uri,
+    ngx_str_t *args, ngx_uint_t *flags);
+ngx_int_t ngx_http_parse_header_line(ngx_http_request_t *r, ngx_buf_t *b,
+    ngx_uint_t allow_underscores);
+ngx_int_t ngx_http_parse_multi_header_lines(ngx_array_t *headers,
+    ngx_str_t *name, ngx_str_t *value);
+ngx_int_t ngx_http_parse_set_cookie_lines(ngx_array_t *headers,
+    ngx_str_t *name, ngx_str_t *value);
+ngx_int_t ngx_http_arg(ngx_http_request_t *r, u_char *name, size_t len,
+    ngx_str_t *value);
+void ngx_http_split_args(ngx_http_request_t *r, ngx_str_t *uri,
+    ngx_str_t *args);
+ngx_int_t ngx_http_parse_chunked(ngx_http_request_t *r, ngx_buf_t *b,
+    ngx_http_chunked_t *ctx);
+
+
+ngx_http_request_t *ngx_http_create_request(ngx_connection_t *c);
+ngx_int_t ngx_http_process_request_uri(ngx_http_request_t *r);
+ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
+void ngx_http_process_request(ngx_http_request_t *r);
+void ngx_http_update_location_config(ngx_http_request_t *r);
+void ngx_http_handler(ngx_http_request_t *r);
+void ngx_http_run_posted_requests(ngx_connection_t *c);
+ngx_int_t ngx_http_post_request(ngx_http_request_t *r,
+    ngx_http_posted_request_t *pr);
+void ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc);
+void ngx_http_free_request(ngx_http_request_t *r, ngx_int_t rc);
+
+void ngx_http_empty_handler(ngx_event_t *wev);
+void ngx_http_request_empty_handler(ngx_http_request_t *r);
+
+
+#define NGX_HTTP_LAST   1
+#define NGX_HTTP_FLUSH  2
+
+ngx_int_t ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags);
+
+
+ngx_int_t ngx_http_read_client_request_body(ngx_http_request_t *r,
+    ngx_http_client_body_handler_pt post_handler);
+ngx_int_t ngx_http_read_unbuffered_request_body(ngx_http_request_t *r);
+
+ngx_int_t ngx_http_send_header(ngx_http_request_t *r);
+ngx_int_t ngx_http_special_response_handler(ngx_http_request_t *r,
+    ngx_int_t error);
+ngx_int_t ngx_http_filter_finalize_request(ngx_http_request_t *r,
+    ngx_module_t *m, ngx_int_t error);
+void ngx_http_clean_header(ngx_http_request_t *r);
+
+
+ngx_int_t ngx_http_discard_request_body(ngx_http_request_t *r);
+void ngx_http_discarded_request_body_handler(ngx_http_request_t *r);
+void ngx_http_block_reading(ngx_http_request_t *r);
+void ngx_http_test_reading(ngx_http_request_t *r);
+
+
+char *ngx_http_types_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
+char *ngx_http_merge_types(ngx_conf_t *cf, ngx_array_t **keys,
+    ngx_hash_t *types_hash, ngx_array_t **prev_keys,
+    ngx_hash_t *prev_types_hash, ngx_str_t *default_types);
+ngx_int_t ngx_http_set_default_types(ngx_conf_t *cf, ngx_array_t **types,
+    ngx_str_t *default_type);
+
+#if (NGX_HTTP_DEGRADATION)
+ngx_uint_t  ngx_http_degraded(ngx_http_request_t *);
+#endif
+
+
+extern ngx_module_t  ngx_http_module;
+
+extern ngx_str_t  ngx_http_html_default_types[];
+
+
+extern ngx_http_output_header_filter_pt  ngx_http_top_header_filter;
+extern ngx_http_output_body_filter_pt    ngx_http_top_body_filter;
+extern ngx_http_request_body_filter_pt   ngx_http_top_request_body_filter;
+
+
+#endif /* _NGX_HTTP_H_INCLUDED_ */