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Diffstat (limited to 'libglusterfs/src/syncop.h')
| -rw-r--r-- | libglusterfs/src/syncop.h | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/libglusterfs/src/syncop.h b/libglusterfs/src/syncop.h deleted file mode 100644 index 12d97010a96..00000000000 --- a/libglusterfs/src/syncop.h +++ /dev/null @@ -1,181 +0,0 @@ -/* - Copyright (c) 2010 Gluster, Inc. <http://www.gluster.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 Affero 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 - Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. -*/ - -#ifndef _SYNCOP_H -#define _SYNCOP_H - -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - -#include "xlator.h" -#include <sys/time.h> -#include <pthread.h> -#include <ucontext.h> - - -struct synctask; -struct syncenv; - - -typedef int (*synctask_cbk_t) (int ret, void *opaque); - -typedef int (*synctask_fn_t) (void *opaque); - - -/* for one sequential execution of @syncfn */ -struct synctask { - struct list_head all_tasks; - struct syncenv *env; - xlator_t *xl; - synctask_cbk_t synccbk; - synctask_fn_t syncfn; - void *opaque; - void *stack; - int complete; - - ucontext_t ctx; -}; - -/* hosts the scheduler thread and framework for executing synctasks */ -struct syncenv { - pthread_t processor; - struct synctask *current; - - struct list_head runq; - struct list_head waitq; - - pthread_mutex_t mutex; - pthread_cond_t cond; - - ucontext_t sched; - size_t stacksize; -}; - - -struct syncargs { - int op_ret; - int op_errno; - struct iatt iatt1; - struct iatt iatt2; - dict_t *xattr; - gf_dirent_t entries; - struct statvfs statvfs_buf; - - /* do not touch */ - pthread_mutex_t mutex; - char complete; - pthread_cond_t cond; - struct synctask *task; -}; - - -#define __yawn(args) do { \ - struct synctask *task = NULL; \ - \ - task = synctask_get (); \ - if (task) { \ - args->task = task; \ - synctask_yawn (task); \ - } else { \ - pthread_mutex_init (&args->mutex, NULL); \ - pthread_cond_init (&args->cond, NULL); \ - } \ -} while (0) - - -#define __yield(args) do { \ - if (args->task) { \ - synctask_yield (args->task); \ - } else { \ - pthread_mutex_lock (&args->mutex); \ - { \ - while (!args->complete) \ - pthread_cond_wait (&args->cond, \ - &args->mutex); \ - } \ - pthread_mutex_unlock (&args->mutex); \ - \ - pthread_mutex_destroy (&args->mutex); \ - pthread_cond_destroy (&args->cond); \ - } \ -} while (0) - - -#define __wake(args) do { \ - if (args->task) { \ - synctask_wake (args->task); \ - } else { \ - pthread_mutex_lock (&args->mutex); \ - { \ - args->complete = 1; \ - pthread_cond_broadcast (&args->cond); \ - } \ - pthread_mutex_unlock (&args->mutex); \ - } \ -} while (0) - - -#define SYNCOP(subvol, stb, cbk, op, params ...) do { \ - call_frame_t *frame = NULL; \ - \ - frame = syncop_create_frame (); \ - \ - __yawn (stb); \ - STACK_WIND_COOKIE (frame, cbk, (void *)stb, subvol, op, params);\ - __yield (stb); \ -} while (0) - - -#define SYNCENV_DEFAULT_STACKSIZE (16 * 1024) - -struct syncenv * syncenv_new (); -void syncenv_destroy (struct syncenv *); - -int synctask_new (struct syncenv *, synctask_fn_t, synctask_cbk_t, void *); -void synctask_zzzz (struct synctask *task); -void synctask_yawn (struct synctask *task); -void synctask_wake (struct synctask *task); -void synctask_yield (struct synctask *task); - -int syncop_lookup (xlator_t *subvol, loc_t *loc, dict_t *xattr_req, - /* out */ - struct iatt *iatt, dict_t **xattr_rsp, struct iatt *parent); - -int syncop_readdirp (xlator_t *subvol, fd_t *fd, size_t size, off_t off, - /* out */ - gf_dirent_t *entries); - -int -syncop_opendir (xlator_t *subvol, - loc_t *loc, - fd_t *fd); - -int syncop_setattr (xlator_t *subvol, loc_t *loc, struct iatt *iatt, int valid, - /* out */ - struct iatt *preop, struct iatt *postop); - -int -syncop_statfs (xlator_t *subvol, loc_t *loc, struct statvfs *buf); - -int -syncop_setxattr (xlator_t *subvol, loc_t *loc, dict_t *dict, int32_t flags); - -#endif /* _SYNCOP_H */ |