Remove unused nxt_vector_t API

This is unused, yet a community member just spent time finding and
fixing a bug in it only to be told it's unused.

Just get rid of the thing.

Link: <https://github.com/nginx/unit/pull/963>
Reviewed-by: Zhidao Hong <z.hong@f5.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

3 files changed, 0 insertions, 222 deletions

diff --git a/src/nxt_main.h b/src/nxt_main.h
index aa96256e..7880e55f 100644
--- a/src/nxt_main.h
+++ b/src/nxt_main.h
@@ -104,7 +104,6 @@ typedef struct {
 #include <nxt_hash.h>
 
 #include <nxt_sort.h>
-#include <nxt_vector.h>
 #include <nxt_list.h>
 
 #include <nxt_service.h>
diff --git a/src/nxt_vector.c b/src/nxt_vector.c
deleted file mode 100644
index 4737248c..00000000
--- a/src/nxt_vector.c
+++ /dev/null
@@ -1,156 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- * Copyright (C) NGINX, Inc.
- */
-
-#include <nxt_main.h>
-
-
-nxt_vector_t *
-nxt_vector_create(nxt_uint_t items, size_t item_size,
-    const nxt_mem_proto_t *proto, void *pool)
-{
-    nxt_vector_t  *vector;
-
-    vector = proto->alloc(pool, sizeof(nxt_vector_t) + items * item_size);
-
-    if (nxt_fast_path(vector != NULL)) {
-        vector->start = nxt_pointer_to(vector, sizeof(nxt_vector_t));
-        vector->items = 0;
-        vector->item_size = item_size;
-        vector->avalaible = items;
-        vector->type = NXT_VECTOR_EMBEDDED;
-    }
-
-    return vector;
-}
-
-
-void *
-nxt_vector_init(nxt_vector_t *vector, nxt_uint_t items, size_t item_size,
-    const nxt_mem_proto_t *proto, void *pool)
-{
-    vector->start = proto->alloc(pool, items * item_size);
-
-    if (nxt_fast_path(vector->start != NULL)) {
-        vector->items = 0;
-        vector->item_size = item_size;
-        vector->avalaible = items;
-        vector->type = NXT_VECTOR_INITED;
-    }
-
-    return vector->start;
-}
-
-
-void
-nxt_vector_destroy(nxt_vector_t *vector, const nxt_mem_proto_t *proto,
-    void *pool)
-{
-    switch (vector->type) {
-
-    case NXT_VECTOR_INITED:
-        proto->free(pool, vector->start);
-#if (NXT_DEBUG)
-        vector->start = NULL;
-        vector->items = 0;
-        vector->avalaible = 0;
-#endif
-        break;
-
-    case NXT_VECTOR_DESCRETE:
-        proto->free(pool, vector->start);
-
-        /* Fall through. */
-
-    case NXT_VECTOR_EMBEDDED:
-        proto->free(pool, vector);
-        break;
-    }
-}
-
-
-void *
-nxt_vector_add(nxt_vector_t *vector, const nxt_mem_proto_t *proto, void *pool)
-{
-    void      *item, *start, *old;
-    size_t    size;
-    uint32_t  n;
-
-    n = vector->avalaible;
-
-    if (n == vector->items) {
-
-        if (n < 16) {
-            /* Allocate new vector twice as much as current. */
-            n *= 2;
-
-        } else {
-            /* Allocate new vector half as much as current. */
-            n += n / 2;
-        }
-
-        size = n * vector->item_size;
-
-        start = proto->alloc(pool, size);
-        if (nxt_slow_path(start == NULL)) {
-            return NULL;
-        }
-
-        vector->avalaible = n;
-        old = vector->start;
-        vector->start = start;
-
-        nxt_memcpy(start, old, size);
-
-        if (vector->type == NXT_VECTOR_EMBEDDED) {
-            vector->type = NXT_VECTOR_DESCRETE;
-
-        } else {
-            proto->free(pool, old);
-        }
-    }
-
-    item = nxt_pointer_to(vector->start, vector->item_size * vector->items);
-
-    vector->items++;
-
-    return item;
-}
-
-
-void *
-nxt_vector_zero_add(nxt_vector_t *vector, const nxt_mem_proto_t *proto,
-    void *pool)
-{
-    void  *item;
-
-    item = nxt_vector_add(vector, proto, pool);
-
-    if (nxt_fast_path(item != NULL)) {
-        nxt_memzero(item, vector->item_size);
-    }
-
-    return item;
-}
-
-
-void
-nxt_vector_remove(nxt_vector_t *vector, void *item)
-{
-    u_char    *next, *last, *end;
-    uint32_t  item_size;
-
-    item_size = vector->item_size;
-    end = nxt_pointer_to(vector->start, item_size * vector->items);
-    last = end - item_size;
-
-    if (item != last) {
-        next = nxt_pointer_to(item, item_size);
-
-        nxt_memmove(item, next, end - next);
-    }
-
-    vector->items--;
-}
diff --git a/src/nxt_vector.h b/src/nxt_vector.h
deleted file mode 100644
index dcac53d4..00000000
--- a/src/nxt_vector.h
+++ /dev/null
@@ -1,65 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- * Copyright (C) NGINX, Inc.
- */
-
-#ifndef _NXT_VECTOR_H_INCLUDED_
-#define _NXT_VECTOR_H_INCLUDED_
-
-
-typedef enum {
-    NXT_VECTOR_INITED = 0,
-    NXT_VECTOR_DESCRETE,
-    NXT_VECTOR_EMBEDDED,
-} nxt_vector_type_t;
-
-
-typedef struct {
-    void               *start;
-    /*
-     * A vector can hold no more than 65536 items.
-     * The item size is no more than 64K.
-     */
-    uint16_t           items;
-    uint16_t           avalaible;
-    uint16_t           item_size;
-    nxt_vector_type_t  type:8;
-} nxt_vector_t;
-
-
-NXT_EXPORT nxt_vector_t *nxt_vector_create(nxt_uint_t items, size_t item_size,
-    const nxt_mem_proto_t *proto, void *pool);
-NXT_EXPORT void *nxt_vector_init(nxt_vector_t *vector, nxt_uint_t items,
-    size_t item_size, const nxt_mem_proto_t *proto, void *pool);
-NXT_EXPORT void nxt_vector_destroy(nxt_vector_t *vector,
-    const nxt_mem_proto_t *proto, void *pool);
-NXT_EXPORT void *nxt_vector_add(nxt_vector_t *vector,
-    const nxt_mem_proto_t *proto, void *pool);
-NXT_EXPORT void *nxt_vector_zero_add(nxt_vector_t *vector,
-    const nxt_mem_proto_t *proto, void *pool);
-NXT_EXPORT void nxt_vector_remove(nxt_vector_t *vector, void *item);
-
-
-#define nxt_vector_last(vector)                                               \
-    nxt_pointer_to((vector)->start,                                           \
-                   (vector)->item_size * ((vector)->items - 1))
-
-
-#define nxt_vector_reset(vector)                                              \
-    (vector)->items = 0;
-
-
-#define nxt_vector_is_empty(vector)                                           \
-    ((vector)->items == 0)
-
-
-nxt_inline void *
-nxt_vector_remove_last(nxt_vector_t *vector)
-{
-    vector->items--;
-    return nxt_pointer_to(vector->start, vector->item_size * vector->items);
-}
-
-
-#endif /* _NXT_VECTOR_H_INCLUDED_ */