Modules compatibility: compatibility with NGX_THREADS.
With this change it is now possible to load modules compiled without
the "--with-threads" configure option into nginx binary compiled with it,
and vice versa (if a module does not use thread-specific functions),
assuming both use the "--with-compat" option.
diff --git a/src/core/ngx_buf.h b/src/core/ngx_buf.h
index 00522cc..224807c 100644
--- a/src/core/ngx_buf.h
+++ b/src/core/ngx_buf.h
@@ -88,9 +88,7 @@
unsigned unaligned:1;
unsigned need_in_memory:1;
unsigned need_in_temp:1;
-#if (NGX_HAVE_FILE_AIO || NGX_THREADS)
unsigned aio:1;
-#endif
#if (NGX_HAVE_FILE_AIO)
ngx_output_chain_aio_pt aio_handler;
@@ -99,7 +97,7 @@
#endif
#endif
-#if (NGX_THREADS)
+#if (NGX_THREADS || NGX_COMPAT)
ngx_int_t (*thread_handler)(ngx_thread_task_t *task,
ngx_file_t *file);
ngx_thread_task_t *thread_task;
diff --git a/src/core/ngx_connection.h b/src/core/ngx_connection.h
index 1472090..b527954 100644
--- a/src/core/ngx_connection.h
+++ b/src/core/ngx_connection.h
@@ -186,7 +186,7 @@
unsigned busy_count:2;
#endif
-#if (NGX_THREADS)
+#if (NGX_THREADS || NGX_COMPAT)
ngx_thread_task_t *sendfile_task;
#endif
};
diff --git a/src/core/ngx_core.h b/src/core/ngx_core.h
index 2819c1a..8f8489f 100644
--- a/src/core/ngx_core.h
+++ b/src/core/ngx_core.h
@@ -12,22 +12,19 @@
#include <ngx_config.h>
-typedef struct ngx_module_s ngx_module_t;
-typedef struct ngx_conf_s ngx_conf_t;
-typedef struct ngx_cycle_s ngx_cycle_t;
-typedef struct ngx_pool_s ngx_pool_t;
-typedef struct ngx_chain_s ngx_chain_t;
-typedef struct ngx_log_s ngx_log_t;
-typedef struct ngx_open_file_s ngx_open_file_t;
-typedef struct ngx_command_s ngx_command_t;
-typedef struct ngx_file_s ngx_file_t;
-typedef struct ngx_event_s ngx_event_t;
-typedef struct ngx_event_aio_s ngx_event_aio_t;
-typedef struct ngx_connection_s ngx_connection_t;
-
-#if (NGX_THREADS)
+typedef struct ngx_module_s ngx_module_t;
+typedef struct ngx_conf_s ngx_conf_t;
+typedef struct ngx_cycle_s ngx_cycle_t;
+typedef struct ngx_pool_s ngx_pool_t;
+typedef struct ngx_chain_s ngx_chain_t;
+typedef struct ngx_log_s ngx_log_t;
+typedef struct ngx_open_file_s ngx_open_file_t;
+typedef struct ngx_command_s ngx_command_t;
+typedef struct ngx_file_s ngx_file_t;
+typedef struct ngx_event_s ngx_event_t;
+typedef struct ngx_event_aio_s ngx_event_aio_t;
+typedef struct ngx_connection_s ngx_connection_t;
typedef struct ngx_thread_task_s ngx_thread_task_t;
-#endif
typedef void (*ngx_event_handler_pt)(ngx_event_t *ev);
typedef void (*ngx_connection_handler_pt)(ngx_connection_t *c);
diff --git a/src/core/ngx_file.h b/src/core/ngx_file.h
index 5c44821..cff74cb 100644
--- a/src/core/ngx_file.h
+++ b/src/core/ngx_file.h
@@ -23,7 +23,7 @@
ngx_log_t *log;
-#if (NGX_THREADS)
+#if (NGX_THREADS || NGX_COMPAT)
ngx_int_t (*thread_handler)(ngx_thread_task_t *task,
ngx_file_t *file);
void *thread_ctx;
diff --git a/src/core/ngx_module.h b/src/core/ngx_module.h
index 10a7eab..626481d 100644
--- a/src/core/ngx_module.h
+++ b/src/core/ngx_module.h
@@ -127,7 +127,7 @@
#define NGX_MODULE_SIGNATURE_21 "0"
#endif
-#if (NGX_THREADS)
+#if (NGX_THREADS || NGX_COMPAT)
#define NGX_MODULE_SIGNATURE_22 "1"
#else
#define NGX_MODULE_SIGNATURE_22 "0"
diff --git a/src/event/ngx_event_pipe.h b/src/event/ngx_event_pipe.h
index ef2e7a0..10a3340 100644
--- a/src/event/ngx_event_pipe.h
+++ b/src/event/ngx_event_pipe.h
@@ -47,7 +47,7 @@
ngx_event_pipe_output_filter_pt output_filter;
void *output_ctx;
-#if (NGX_THREADS)
+#if (NGX_THREADS || NGX_COMPAT)
ngx_int_t (*thread_handler)(ngx_thread_task_t *task,
ngx_file_t *file);
void *thread_ctx;
diff --git a/src/http/ngx_http_cache.h b/src/http/ngx_http_cache.h
index 9c9ff6f..70342d0 100644
--- a/src/http/ngx_http_cache.h
+++ b/src/http/ngx_http_cache.h
@@ -93,7 +93,7 @@
ngx_http_file_cache_t *file_cache;
ngx_http_file_cache_node_t *node;
-#if (NGX_THREADS)
+#if (NGX_THREADS || NGX_COMPAT)
ngx_thread_task_t *thread_task;
#endif
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index 628679f..7140a6b 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -15,6 +15,8 @@
#if (NGX_THREADS)
#include <ngx_thread_pool.h>
+#elif (NGX_COMPAT)
+typedef struct ngx_thread_pool_s ngx_thread_pool_t;
#endif
@@ -409,7 +411,7 @@
#endif
#endif
-#if (NGX_THREADS)
+#if (NGX_THREADS || NGX_COMPAT)
ngx_thread_pool_t *thread_pool;
ngx_http_complex_value_t *thread_pool_value;
#endif
