vim-patch:8.1.1437: code to handle callbacks is duplicated

Problem:    Code to handle callbacks is duplicated.
Solution:   Add callback_T and functions to deal with it.
https://github.com/vim/vim/commit/3a97bb3f0f8bd118ae23f1c97e55d84ff42eef20

Port Vim's put_callback() as callback_put()
because Neovim's naming convention is {type}_{action},
not {action}_{type}.

Renaming put_callback type as PutCallback.
https://neovim.io/develop/style-guide.xml#Type_Names

2 files changed, 4 insertions, 4 deletions

diff --git a/src/nvim/event/multiqueue.c b/src/nvim/event/multiqueue.c
index 1e6d62135c..f534fc483f 100644
--- a/src/nvim/event/multiqueue.c
+++ b/src/nvim/event/multiqueue.c
@@ -73,7 +73,7 @@ struct multiqueue_item {
 struct multiqueue {
   MultiQueue *parent;
   QUEUE headtail;  // circularly-linked
-  put_callback put_cb;
+  PutCallback put_cb;
   void *data;
   size_t size;
 };
@@ -91,7 +91,7 @@ typedef struct {
 
 static Event NILEVENT = { .handler = NULL, .argv = {NULL} };
 
-MultiQueue *multiqueue_new_parent(put_callback put_cb, void *data)
+MultiQueue *multiqueue_new_parent(PutCallback put_cb, void *data)
 {
   return multiqueue_new(NULL, put_cb, data);
 }
@@ -104,7 +104,7 @@ MultiQueue *multiqueue_new_child(MultiQueue *parent)
   return multiqueue_new(parent, NULL, NULL);
 }
 
-static MultiQueue *multiqueue_new(MultiQueue *parent, put_callback put_cb,
+static MultiQueue *multiqueue_new(MultiQueue *parent, PutCallback put_cb,
                                   void *data)
 {
   MultiQueue *rv = xmalloc(sizeof(MultiQueue));
diff --git a/src/nvim/event/multiqueue.h b/src/nvim/event/multiqueue.h
index a688107665..dc60fbb4c7 100644
--- a/src/nvim/event/multiqueue.h
+++ b/src/nvim/event/multiqueue.h
@@ -7,7 +7,7 @@
 #include "nvim/lib/queue.h"
 
 typedef struct multiqueue MultiQueue;
-typedef void (*put_callback)(MultiQueue *multiq, void *data);
+typedef void (*PutCallback)(MultiQueue *multiq, void *data);
 
 #define multiqueue_put(q, h, ...) \
   multiqueue_put_event(q, event_create(h, __VA_ARGS__));