Making Go package source distributable and renaming to 'nginx/unit'.

All header files are copied to Go package sources.  As the result,
package can be (re-)build when required.

This closes #23 issue on GitHub.

src/go/unit/darwin-cflags.go

@@ -0,0 +1,13 @@
+// +build darwin
+
+/*
+ * Copyright (C) Max Romanov
+ * Copyright (C) NGINX, Inc.
+ */
+
+package unit
+
+/*
+#cgo CFLAGS: -mmacosx-version-min=10.5
+*/
+import "C"

src/go/unit/linux-lrt.go

@@ -0,0 +1,13 @@
+// +build linux
+
+/*
+ * Copyright (C) Max Romanov
+ * Copyright (C) NGINX, Inc.
+ */
+
+package unit
+
+/*
+#cgo LDFLAGS: -lrt
+*/
+import "C"

src/go/unit/nxt_go_array.c

@@ -4,8 +4,6 @@
  * Copyright (C) NGINX, Inc.
  */
 
-#ifndef NXT_CONFIGURE
-
 #include <stdint.h>
 #include <sys/types.h>
 
@@ -62,5 +60,3 @@ nxt_go_array_add(nxt_array_t *array)
 
     return p;
 }
-
-#endif /* NXT_CONFIGURE */

src/go/unit/nxt_go_lib.c

@@ -4,62 +4,13 @@
  * Copyright (C) NGINX, Inc.
  */
 
-#ifdef NXT_CONFIGURE
-
-#include <stdio.h>
-#include "nxt_go_lib.h"
-
-// Stubs to compile during configure process.
-int
-nxt_go_response_write(nxt_go_request_t r, void *buf, size_t len)
-{
-    return -1;
-}
-
-int
-nxt_go_request_read(nxt_go_request_t r, void *dst, size_t dst_len)
-{
-    return -1;
-}
-
-int
-nxt_go_request_read_from(nxt_go_request_t r, void *dst, size_t dst_len,
-    void *src, size_t src_len)
-{
-    return -1;
-}
-
-int
-nxt_go_request_close(nxt_go_request_t r)
-{
-    return -1;
-}
-
-int
-nxt_go_request_done(nxt_go_request_t r)
-{
-    return -1;
-}
-
-void
-nxt_go_ready()
-{
-}
-
-nxt_go_request_t
-nxt_go_process_port_msg(void *buf, size_t buf_len, void *oob, size_t oob_len)
-{
-    return 0;
-}
-
-#else
-
 #include "nxt_go_run_ctx.h"
 #include "nxt_go_log.h"
 #include "nxt_go_port.h"
 
+#include "_cgo_export.h"
+
 #include <nxt_main.h>
-#include <nxt_go_gen.h>
 
 int
 nxt_go_response_write(nxt_go_request_t r, void *buf, size_t len)
@@ -190,6 +141,3 @@ nxt_go_process_port_msg(void *buf, size_t buf_len, void *oob, size_t oob_len)
 {
     return nxt_go_port_on_read(buf, buf_len, oob, oob_len);
 }
-
-
-#endif /* NXT_CONFIGURE */

src/go/unit/nxt_go_port.c

@@ -4,16 +4,14 @@
  * Copyright (C) NGINX, Inc.
  */
 
-#ifndef NXT_CONFIGURE
-
-
 #include "nxt_go_port.h"
 #include "nxt_go_log.h"
 #include "nxt_go_process.h"
 #include "nxt_go_run_ctx.h"
 
+#include "_cgo_export.h"
+
 #include <nxt_main.h>
-#include <nxt_go_gen.h>
 
 
 #define nxt_go_str(p) ((nxt_go_str_t *)(p))
@@ -205,6 +203,3 @@ fail:
 
     return 0;
 }
-
-
-#endif /* NXT_CONFIGURE */

src/go/unit/nxt_go_port_memory.c

@@ -4,15 +4,13 @@
  * Copyright (C) NGINX, Inc.
  */
 
-#ifndef NXT_CONFIGURE
-
-
 #include "nxt_go_port_memory.h"
 #include "nxt_go_process.h"
 #include "nxt_go_array.h"
 #include "nxt_go_log.h"
 
-#include <nxt_go_gen.h>
+#include "_cgo_export.h"
+
 #include <nxt_main.h>
 
 #if (NXT_HAVE_MEMFD_CREATE)
@@ -197,6 +195,3 @@ unlock_return:
 
     return hdr;
 }
-
-
-#endif /* NXT_CONFIGURE */

src/go/unit/nxt_go_process.c

@@ -4,9 +4,6 @@
  * Copyright (C) NGINX, Inc.
  */
 
-#ifndef NXT_CONFIGURE
-
-
 #include "nxt_go_process.h"
 #include "nxt_go_array.h"
 #include "nxt_go_mutex.h"
@@ -149,6 +146,3 @@ fail:
 
     nxt_go_mutex_unlock(&process->incoming_mutex);
 }
-
-
-#endif /* NXT_CONFIGURE */

src/go/unit/nxt_go_run_ctx.c

@@ -4,9 +4,6 @@
  * Copyright (C) NGINX, Inc.
  */
 
-#ifndef NXT_CONFIGURE
-
-
 #include "nxt_go_run_ctx.h"
 #include "nxt_go_log.h"
 #include "nxt_go_process.h"
@@ -14,9 +11,10 @@
 #include "nxt_go_mutex.h"
 #include "nxt_go_port_memory.h"
 
+#include "_cgo_export.h"
+
 #include <nxt_port_memory_int.h>
 #include <nxt_main.h>
-#include <nxt_go_gen.h>
 
 
 static nxt_int_t
@@ -530,6 +528,3 @@ nxt_go_ctx_read_raw(nxt_go_run_ctx_t *ctx, void *dst, size_t size)
 
     return res;
 }
-
-
-#endif /* NXT_CONFIGURE */