Renamed "go" application type to "external".

There's nothing specific to Go language.  This type of application object can
be used to run any external application that utilizes libunit API.

7 files changed, 81 insertions, 78 deletions

diff --git a/src/nxt_application.c b/src/nxt_application.c
index 3c62f7d4..acdebe04 100644
--- a/src/nxt_application.c
+++ b/src/nxt_application.c
@@ -507,15 +507,15 @@ nxt_app_parse_type(u_char *p, size_t length)
     str.length = length;
     str.start = p;
 
-    if (nxt_str_eq(&str, "python", 6)) {
+    if (nxt_str_eq(&str, "external", 8) || nxt_str_eq(&str, "go", 2)) {
+        return NXT_APP_EXTERNAL;
+
+    } else if (nxt_str_eq(&str, "python", 6)) {
         return NXT_APP_PYTHON;
 
     } else if (nxt_str_eq(&str, "php", 3)) {
         return NXT_APP_PHP;
 
-    } else if (nxt_str_eq(&str, "go", 2)) {
-        return NXT_APP_GO;
-
     } else if (nxt_str_eq(&str, "perl", 4)) {
         return NXT_APP_PERL;
 
diff --git a/src/nxt_application.h b/src/nxt_application.h
index 35346655..10f5a922 100644
--- a/src/nxt_application.h
+++ b/src/nxt_application.h
@@ -15,9 +15,9 @@
 
 
 typedef enum {
+    NXT_APP_EXTERNAL,
     NXT_APP_PYTHON,
     NXT_APP_PHP,
-    NXT_APP_GO,
     NXT_APP_PERL,
     NXT_APP_RUBY,
 
@@ -40,6 +40,12 @@ typedef struct nxt_common_app_conf_s nxt_common_app_conf_t;
 
 
 typedef struct {
+    char                       *executable;
+    nxt_conf_value_t           *arguments;
+} nxt_external_app_conf_t;
+
+
+typedef struct {
     char       *home;
     nxt_str_t  path;
     nxt_str_t  module;
@@ -55,12 +61,6 @@ typedef struct {
 
 
 typedef struct {
-    char                       *executable;
-    nxt_conf_value_t           *arguments;
-} nxt_go_app_conf_t;
-
-
-typedef struct {
     char       *script;
 } nxt_perl_app_conf_t;
 
@@ -80,11 +80,11 @@ struct nxt_common_app_conf_s {
     nxt_conf_value_t           *environment;
 
     union {
-        nxt_python_app_conf_t  python;
-        nxt_php_app_conf_t     php;
-        nxt_go_app_conf_t      go;
-        nxt_perl_app_conf_t    perl;
-        nxt_ruby_app_conf_t    ruby;
+        nxt_external_app_conf_t  external;
+        nxt_python_app_conf_t    python;
+        nxt_php_app_conf_t       php;
+        nxt_perl_app_conf_t      perl;
+        nxt_ruby_app_conf_t      ruby;
     } u;
 };
 
@@ -161,7 +161,7 @@ nxt_app_lang_module_t *nxt_app_lang_module(nxt_runtime_t *rt, nxt_str_t *name);
 nxt_app_type_t nxt_app_parse_type(u_char *p, size_t length);
 
 NXT_EXPORT extern nxt_str_t  nxt_server;
-extern nxt_app_module_t      nxt_go_module;
+extern nxt_app_module_t      nxt_external_module;
 
 NXT_EXPORT nxt_int_t nxt_unit_default_init(nxt_task_t *task,
     nxt_unit_init_t *init);
diff --git a/src/nxt_conf_validation.c b/src/nxt_conf_validation.c
index ca7107cc..b1e30955 100644
--- a/src/nxt_conf_validation.c
+++ b/src/nxt_conf_validation.c
@@ -256,6 +256,21 @@ static nxt_conf_vldt_object_t  nxt_conf_vldt_common_members[] = {
 };
 
 
+static nxt_conf_vldt_object_t  nxt_conf_vldt_external_members[] = {
+    { nxt_string("executable"),
+      NXT_CONF_VLDT_STRING,
+      NULL,
+      NULL },
+
+    { nxt_string("arguments"),
+      NXT_CONF_VLDT_ARRAY,
+      &nxt_conf_vldt_array_iterator,
+      (void *) &nxt_conf_vldt_argument },
+
+    NXT_CONF_VLDT_NEXT(&nxt_conf_vldt_common_members)
+};
+
+
 static nxt_conf_vldt_object_t  nxt_conf_vldt_python_members[] = {
     { nxt_string("home"),
       NXT_CONF_VLDT_STRING,
@@ -321,21 +336,6 @@ static nxt_conf_vldt_object_t  nxt_conf_vldt_php_members[] = {
 };
 
 
-static nxt_conf_vldt_object_t  nxt_conf_vldt_go_members[] = {
-    { nxt_string("executable"),
-      NXT_CONF_VLDT_STRING,
-      NULL,
-      NULL },
-
-    { nxt_string("arguments"),
-      NXT_CONF_VLDT_ARRAY,
-      &nxt_conf_vldt_array_iterator,
-      (void *) &nxt_conf_vldt_argument },
-
-    NXT_CONF_VLDT_NEXT(&nxt_conf_vldt_common_members)
-};
-
-
 static nxt_conf_vldt_object_t  nxt_conf_vldt_perl_members[] = {
     { nxt_string("script"),
       NXT_CONF_VLDT_STRING,
@@ -565,9 +565,9 @@ nxt_conf_vldt_app(nxt_conf_validation_t *vldt, nxt_str_t *name,
     static nxt_str_t  type_str = nxt_string("type");
 
     static void  *members[] = {
+        nxt_conf_vldt_external_members,
         nxt_conf_vldt_python_members,
         nxt_conf_vldt_php_members,
-        nxt_conf_vldt_go_members,
         nxt_conf_vldt_perl_members,
         nxt_conf_vldt_ruby_members,
     };
diff --git a/src/nxt_go.c b/src/nxt_external.c
index 4e7d0488..c7aacffc 100644
--- a/src/nxt_go.c
+++ b/src/nxt_external.c
@@ -9,21 +9,24 @@
 #include <nxt_unit.h>
 
 
-static nxt_int_t nxt_go_init(nxt_task_t *task, nxt_common_app_conf_t *conf);
+static nxt_int_t nxt_external_init(nxt_task_t *task,
+    nxt_common_app_conf_t *conf);
 
-nxt_app_module_t  nxt_go_module = {
+
+nxt_app_module_t  nxt_external_module = {
     0,
     NULL,
-    nxt_string("go"),
+    nxt_string("external"),
     "*",
-    nxt_go_init,
+    nxt_external_init,
 };
 
 
 extern char  **environ;
 
+
 nxt_inline nxt_int_t
-nxt_go_fd_no_cloexec(nxt_task_t *task, nxt_socket_t fd)
+nxt_external_fd_no_cloexec(nxt_task_t *task, nxt_socket_t fd)
 {
     int  res, flags;
 
@@ -54,20 +57,20 @@ nxt_go_fd_no_cloexec(nxt_task_t *task, nxt_socket_t fd)
 
 
 static nxt_int_t
-nxt_go_init(nxt_task_t *task, nxt_common_app_conf_t *conf)
+nxt_external_init(nxt_task_t *task, nxt_common_app_conf_t *conf)
 {
-    char               **argv;
-    u_char             buf[256];
-    u_char             *p, *end;
-    uint32_t           index;
-    size_t             size;
-    nxt_str_t          str;
-    nxt_int_t          rc;
-    nxt_uint_t         i, argc;
-    nxt_port_t         *my_port, *main_port;
-    nxt_runtime_t      *rt;
-    nxt_conf_value_t   *value;
-    nxt_go_app_conf_t  *c;
+    char                     **argv;
+    u_char                   buf[256];
+    u_char                   *p, *end;
+    uint32_t                 index;
+    size_t                   size;
+    nxt_str_t                str;
+    nxt_int_t                rc;
+    nxt_uint_t               i, argc;
+    nxt_port_t               *my_port, *main_port;
+    nxt_runtime_t            *rt;
+    nxt_conf_value_t         *value;
+    nxt_external_app_conf_t  *c;
 
     rt = task->thread->runtime;
 
@@ -78,12 +81,12 @@ nxt_go_init(nxt_task_t *task, nxt_common_app_conf_t *conf)
         return NXT_ERROR;
     }
 
-    rc = nxt_go_fd_no_cloexec(task, main_port->pair[1]);
+    rc = nxt_external_fd_no_cloexec(task, main_port->pair[1]);
     if (nxt_slow_path(rc != NXT_OK)) {
         return NXT_ERROR;
     }
 
-    rc = nxt_go_fd_no_cloexec(task, my_port->pair[0]);
+    rc = nxt_external_fd_no_cloexec(task, my_port->pair[0]);
     if (nxt_slow_path(rc != NXT_OK)) {
         return NXT_ERROR;
     }
@@ -116,7 +119,7 @@ nxt_go_init(nxt_task_t *task, nxt_common_app_conf_t *conf)
         return NXT_ERROR;
     }
 
-    c = &conf->u.go;
+    c = &conf->u.external;
 
     argc = 2;
     size = 0;
diff --git a/src/nxt_main_process.c b/src/nxt_main_process.c
index 491b09f3..819ed44c 100644
--- a/src/nxt_main_process.c
+++ b/src/nxt_main_process.c
@@ -134,6 +134,22 @@ static nxt_conf_map_t  nxt_common_app_conf[] = {
 };
 
 
+static nxt_conf_map_t  nxt_external_app_conf[] = {
+    {
+        nxt_string("executable"),
+        NXT_CONF_MAP_CSTRZ,
+        offsetof(nxt_common_app_conf_t, u.external.executable),
+    },
+
+    {
+        nxt_string("arguments"),
+        NXT_CONF_MAP_PTR,
+        offsetof(nxt_common_app_conf_t, u.external.arguments),
+    },
+
+};
+
+
 static nxt_conf_map_t  nxt_python_app_conf[] = {
     {
         nxt_string("home"),
@@ -182,22 +198,6 @@ static nxt_conf_map_t  nxt_php_app_conf[] = {
 };
 
 
-static nxt_conf_map_t  nxt_go_app_conf[] = {
-    {
-        nxt_string("executable"),
-        NXT_CONF_MAP_CSTRZ,
-        offsetof(nxt_common_app_conf_t, u.go.executable),
-    },
-
-    {
-        nxt_string("arguments"),
-        NXT_CONF_MAP_PTR,
-        offsetof(nxt_common_app_conf_t, u.go.arguments),
-    },
-
-};
-
-
 static nxt_conf_map_t  nxt_perl_app_conf[] = {
     {
         nxt_string("script"),
@@ -217,11 +217,11 @@ static nxt_conf_map_t  nxt_ruby_app_conf[] = {
 
 
 static nxt_conf_app_map_t  nxt_app_maps[] = {
-    { nxt_nitems(nxt_python_app_conf), nxt_python_app_conf },
-    { nxt_nitems(nxt_php_app_conf),    nxt_php_app_conf },
-    { nxt_nitems(nxt_go_app_conf),     nxt_go_app_conf },
-    { nxt_nitems(nxt_perl_app_conf),   nxt_perl_app_conf },
-    { nxt_nitems(nxt_ruby_app_conf),   nxt_ruby_app_conf },
+    { nxt_nitems(nxt_external_app_conf),  nxt_external_app_conf },
+    { nxt_nitems(nxt_python_app_conf),    nxt_python_app_conf },
+    { nxt_nitems(nxt_php_app_conf),       nxt_php_app_conf },
+    { nxt_nitems(nxt_perl_app_conf),      nxt_perl_app_conf },
+    { nxt_nitems(nxt_ruby_app_conf),      nxt_ruby_app_conf },
 };
 
 
diff --git a/src/nxt_router.c b/src/nxt_router.c
index 139b2c4c..3a5382e4 100644
--- a/src/nxt_router.c
+++ b/src/nxt_router.c
@@ -289,9 +289,9 @@ static const nxt_str_t http_prefix = nxt_string("HTTP_");
 static const nxt_str_t empty_prefix = nxt_string("");
 
 static const nxt_str_t  *nxt_app_msg_prefix[] = {
+    &empty_prefix,
     &http_prefix,
     &http_prefix,
-    &empty_prefix,
     &http_prefix,
     &http_prefix,
 };
diff --git a/src/nxt_runtime.c b/src/nxt_runtime.c
index 311c2c08..8f20e0a0 100644
--- a/src/nxt_runtime.c
+++ b/src/nxt_runtime.c
@@ -80,10 +80,10 @@ nxt_runtime_create(nxt_task_t *task)
 
     /* Should not fail. */
     lang = nxt_array_add(rt->languages);
-    lang->type = NXT_APP_GO;
+    lang->type = NXT_APP_EXTERNAL;
     lang->version = (u_char *) "";
     lang->file = NULL;
-    lang->module = &nxt_go_module;
+    lang->module = &nxt_external_module;
 
     listen_sockets = nxt_array_create(mp, 1, sizeof(nxt_listen_socket_t));
     if (nxt_slow_path(listen_sockets == NULL)) {