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-rw-r--r--libglusterfs/src/stack.h264
1 files changed, 0 insertions, 264 deletions
diff --git a/libglusterfs/src/stack.h b/libglusterfs/src/stack.h
deleted file mode 100644
index 10ab7f2025a..00000000000
--- a/libglusterfs/src/stack.h
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- Copyright (c) 2006-2009 Z RESEARCH, Inc. <http://www.zresearch.com>
- This file is part of GlusterFS.
-
- GlusterFS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3 of the License,
- or (at your option) any later version.
-
- GlusterFS is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see
- <http://www.gnu.org/licenses/>.
-*/
-
-/*
- This file defines MACROS and static inlines used to emulate a function
- call over asynchronous communication with remote server
-*/
-
-#ifndef _STACK_H
-#define _STACK_H
-
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
-struct _call_stack_t;
-typedef struct _call_stack_t call_stack_t;
-struct _call_frame_t;
-typedef struct _call_frame_t call_frame_t;
-struct _call_pool_t;
-typedef struct _call_pool_t call_pool_t;
-
-#include "xlator.h"
-#include "dict.h"
-#include "list.h"
-#include "common-utils.h"
-
-
-typedef int32_t (*ret_fn_t) (call_frame_t *frame,
- call_frame_t *prev_frame,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- ...);
-
-struct _call_pool_t {
- union {
- struct list_head all_frames;
- struct {
- call_stack_t *next_call;
- call_stack_t *prev_call;
- } all_stacks;
- };
- int64_t cnt;
- gf_lock_t lock;
-};
-
-struct _call_frame_t {
- call_stack_t *root; /* stack root */
- call_frame_t *parent; /* previous BP */
- call_frame_t *next;
- call_frame_t *prev; /* maintainence list */
- void *local; /* local variables */
- xlator_t *this; /* implicit object */
- ret_fn_t ret; /* op_return address */
- int32_t ref_count;
- gf_lock_t lock;
- void *cookie; /* unique cookie */
-};
-
-struct _call_stack_t {
- union {
- struct list_head all_frames;
- struct {
- call_stack_t *next_call;
- call_stack_t *prev_call;
- };
- };
- call_pool_t *pool;
- void *trans;
- uint64_t unique;
- void *state; /* pointer to request state */
- uid_t uid;
- gid_t gid;
- pid_t pid;
- call_frame_t frames;
-
- int32_t op;
- int8_t type;
-};
-
-
-static inline void
-FRAME_DESTROY (call_frame_t *frame)
-{
- if (frame->next)
- frame->next->prev = frame->prev;
- if (frame->prev)
- frame->prev->next = frame->next;
- if (frame->local)
- FREE (frame->local);
- LOCK_DESTROY (&frame->lock);
- FREE (frame);
-}
-
-
-static inline void
-STACK_DESTROY (call_stack_t *stack)
-{
- LOCK (&stack->pool->lock);
- {
- list_del_init (&stack->all_frames);
- stack->pool->cnt--;
- }
- UNLOCK (&stack->pool->lock);
-
- if (stack->frames.local)
- FREE (stack->frames.local);
-
- LOCK_DESTROY (&stack->frames.lock);
-
- while (stack->frames.next) {
- FRAME_DESTROY (stack->frames.next);
- }
- FREE (stack);
-}
-
-
-#define cbk(x) cbk_##x
-
-
-/* make a call */
-#define STACK_WIND(frame, rfn, obj, fn, params ...) \
- do { \
- call_frame_t *_new = NULL; \
- \
- _new = CALLOC (1, sizeof (call_frame_t)); \
- ERR_ABORT (_new); \
- typeof(fn##_cbk) tmp_cbk = rfn; \
- _new->root = frame->root; \
- _new->next = frame->root->frames.next; \
- _new->prev = &frame->root->frames; \
- if (frame->root->frames.next) \
- frame->root->frames.next->prev = _new; \
- frame->root->frames.next = _new; \
- _new->this = obj; \
- _new->ret = (ret_fn_t) tmp_cbk; \
- _new->parent = frame; \
- _new->cookie = _new; \
- LOCK_INIT (&_new->lock); \
- frame->ref_count++; \
- \
- fn (_new, obj, params); \
- } while (0)
-
-
-/* make a call with a cookie */
-#define STACK_WIND_COOKIE(frame, rfn, cky, obj, fn, params ...) \
- do { \
- call_frame_t *_new = CALLOC (1, \
- sizeof (call_frame_t)); \
- ERR_ABORT (_new); \
- typeof(fn##_cbk) tmp_cbk = rfn; \
- _new->root = frame->root; \
- _new->next = frame->root->frames.next; \
- _new->prev = &frame->root->frames; \
- if (frame->root->frames.next) \
- frame->root->frames.next->prev = _new; \
- frame->root->frames.next = _new; \
- _new->this = obj; \
- _new->ret = (ret_fn_t) tmp_cbk; \
- _new->parent = frame; \
- _new->cookie = cky; \
- LOCK_INIT (&_new->lock); \
- frame->ref_count++; \
- fn##_cbk = rfn; \
- \
- fn (_new, obj, params); \
- } while (0)
-
-
-/* return from function */
-#define STACK_UNWIND(frame, params ...) \
- do { \
- ret_fn_t fn = frame->ret; \
- call_frame_t *_parent = frame->parent; \
- _parent->ref_count--; \
- fn (_parent, frame->cookie, _parent->this, params); \
- } while (0)
-
-
-static inline call_frame_t *
-copy_frame (call_frame_t *frame)
-{
- call_stack_t *newstack = NULL;
- call_stack_t *oldstack = NULL;
-
- if (!frame) {
- return NULL;
- }
-
- newstack = (void *) CALLOC (1, sizeof (*newstack));
- oldstack = frame->root;
-
- newstack->uid = oldstack->uid;
- newstack->gid = oldstack->gid;
- newstack->pid = oldstack->pid;
- newstack->unique = oldstack->unique;
-
- newstack->frames.this = frame->this;
- newstack->frames.root = newstack;
- newstack->pool = oldstack->pool;
-
- LOCK_INIT (&newstack->frames.lock);
-
- LOCK (&oldstack->pool->lock);
- {
- list_add (&newstack->all_frames, &oldstack->all_frames);
- newstack->pool->cnt++;
-
- }
- UNLOCK (&oldstack->pool->lock);
-
- return &newstack->frames;
-}
-
-static inline call_frame_t *
-create_frame (xlator_t *xl, call_pool_t *pool)
-{
- call_stack_t *stack = NULL;
-
- if (!xl || !pool) {
- return NULL;
- }
-
- stack = CALLOC (1, sizeof (*stack));
- if (!stack)
- return NULL;
-
- stack->pool = pool;
- stack->frames.root = stack;
- stack->frames.this = xl;
-
- LOCK (&pool->lock);
- {
- list_add (&stack->all_frames, &pool->all_frames);
- pool->cnt++;
- }
- UNLOCK (&pool->lock);
-
- LOCK_INIT (&stack->frames.lock);
-
- return &stack->frames;
-}
-
-
-#endif /* _STACK_H */
generated by cgit (git 2.34.1) at 2025-12-29 05:14:18 +0000