diff options
Diffstat (limited to 'xlators/performance/io-cache/src/io-cache.h')
| -rw-r--r-- | xlators/performance/io-cache/src/io-cache.h | 202 |
1 files changed, 100 insertions, 102 deletions
diff --git a/xlators/performance/io-cache/src/io-cache.h b/xlators/performance/io-cache/src/io-cache.h index ffa7d7dcd6b..954b3fec4b9 100644 --- a/xlators/performance/io-cache/src/io-cache.h +++ b/xlators/performance/io-cache/src/io-cache.h @@ -1,20 +1,20 @@ /* - Copyright (c) 2007-2009 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/>. + Copyright (c) 2007-2009 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/>. */ #ifndef __IO_CACHE_H @@ -47,8 +47,8 @@ struct ioc_inode; struct ioc_priority { struct list_head list; - char *pattern; - uint32_t priority; + char *pattern; + uint32_t priority; }; /* @@ -60,9 +60,9 @@ struct ioc_priority { */ struct ioc_waitq { struct ioc_waitq *next; - void *data; - off_t pending_offset; - size_t pending_size; + void *data; + off_t pending_offset; + size_t pending_size; }; /* @@ -71,32 +71,38 @@ struct ioc_waitq { */ struct ioc_fill { struct list_head list; /* list of ioc_fill structures of a frame */ - off_t offset; - size_t size; - struct iovec *vector; - int32_t count; - struct iobref *iobref; + off_t offset; + size_t size; + struct iovec *vector; + int32_t count; + struct iobref *iobref; }; struct ioc_local { - mode_t mode; - int32_t flags; - loc_t file_loc; - off_t offset; - size_t size; - int32_t op_ret; - int32_t op_errno; + mode_t mode; + int32_t flags; + loc_t file_loc; + off_t offset; + size_t size; + int32_t op_ret; + int32_t op_errno; struct list_head fill_list; /* list of ioc_fill structures */ - off_t pending_offset; /* offset from this frame should continue */ - size_t pending_size; /* size of data this frame is waiting on */ + off_t pending_offset; /* + * offset from this frame should + * continue + */ + size_t pending_size; /* + * size of data this frame is waiting + * on + */ struct ioc_inode *inode; - int32_t wait_count; - pthread_mutex_t local_lock; + int32_t wait_count; + pthread_mutex_t local_lock; struct ioc_waitq *waitq; - void *stub; - fd_t *fd; - int32_t need_xattr; - dict_t *xattr_req; + void *stub; + fd_t *fd; + int32_t need_xattr; + dict_t *xattr_req; }; /* @@ -104,48 +110,59 @@ struct ioc_local { * */ struct ioc_page { - struct list_head pages; - struct list_head page_lru; - struct ioc_inode *inode; /* inode this page belongs to */ + struct list_head pages; + struct list_head page_lru; + struct ioc_inode *inode; /* inode this page belongs to */ struct ioc_priority *priority; - char dirty; - char ready; - struct iovec *vector; - int32_t count; - off_t offset; - size_t size; - struct ioc_waitq *waitq; - struct iobref *iobref; - pthread_mutex_t page_lock; + char dirty; + char ready; + struct iovec *vector; + int32_t count; + off_t offset; + size_t size; + struct ioc_waitq *waitq; + struct iobref *iobref; + pthread_mutex_t page_lock; }; struct ioc_inode { struct ioc_table *table; struct list_head pages; /* list of pages of this inode */ - struct list_head inode_list; /* list of inodes, maintained by io-cache translator */ + struct list_head inode_list; /* + * list of inodes, maintained by io-cache + * translator + */ struct list_head inode_lru; struct list_head page_lru; struct ioc_waitq *waitq; - pthread_mutex_t inode_lock; - uint32_t weight; /* weight of the inode, increases on each read */ - time_t mtime; /* mtime of the server file when last cached */ - struct timeval tv; /* time-stamp at last re-validate */ + pthread_mutex_t inode_lock; + uint32_t weight; /* + * weight of the inode, increases on each + * read + */ + time_t mtime; /* + * mtime of the server file when last + * cached + */ + struct timeval tv; /* + * time-stamp at last re-validate + */ }; struct ioc_table { - uint64_t page_size; - uint64_t cache_size; - uint64_t cache_used; + uint64_t page_size; + uint64_t cache_size; + uint64_t cache_used; struct list_head inodes; /* list of inodes cached */ struct list_head active; struct list_head *inode_lru; struct list_head priority_list; - int32_t readv_count; - pthread_mutex_t table_lock; - xlator_t *xl; - uint32_t inode_count; - int32_t cache_timeout; - int32_t max_pri; + int32_t readv_count; + pthread_mutex_t table_lock; + xlator_t *xl; + uint32_t inode_count; + int32_t cache_timeout; + int32_t max_pri; }; typedef struct ioc_table ioc_table_t; @@ -162,33 +179,22 @@ char * ptr_to_str (void *ptr); int32_t -ioc_readv_disabled_cbk (call_frame_t *frame, - void *cookie, - xlator_t *this, - int32_t op_ret, - int32_t op_errno, - struct iovec *vector, - int32_t count, - struct stat *stbuf, +ioc_readv_disabled_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iovec *vector, + int32_t count, struct stat *stbuf, struct iobref *iobref); ioc_page_t * -ioc_page_get (ioc_inode_t *ioc_inode, - off_t offset); +ioc_page_get (ioc_inode_t *ioc_inode, off_t offset); ioc_page_t * -ioc_page_create (ioc_inode_t *ioc_inode, - off_t offset); +ioc_page_create (ioc_inode_t *ioc_inode, off_t offset); void -ioc_page_fault (ioc_inode_t *ioc_inode, - call_frame_t *frame, - fd_t *fd, +ioc_page_fault (ioc_inode_t *ioc_inode, call_frame_t *frame, fd_t *fd, off_t offset); void -ioc_wait_on_page (ioc_page_t *page, - call_frame_t *frame, - off_t offset, +ioc_wait_on_page (ioc_page_t *page, call_frame_t *frame, off_t offset, size_t size); ioc_waitq_t * @@ -198,9 +204,8 @@ void ioc_page_flush (ioc_page_t *page); ioc_waitq_t * -ioc_page_error (ioc_page_t *page, - int32_t op_ret, - int32_t op_errno); +ioc_page_error (ioc_page_t *page, int32_t op_ret, int32_t op_errno); + void ioc_page_purge (ioc_page_t *page); @@ -211,9 +216,7 @@ void ioc_waitq_return (ioc_waitq_t *waitq); void -ioc_frame_fill (ioc_page_t *page, - call_frame_t *frame, - off_t offset, +ioc_frame_fill (ioc_page_t *page, call_frame_t *frame, off_t offset, size_t size); #define ioc_inode_lock(ioc_inode) \ @@ -293,16 +296,13 @@ time_elapsed (struct timeval *now, } ioc_inode_t * -ioc_inode_search (ioc_table_t *table, - inode_t *inode); +ioc_inode_search (ioc_table_t *table, inode_t *inode); void ioc_inode_destroy (ioc_inode_t *ioc_inode); ioc_inode_t * -ioc_inode_update (ioc_table_t *table, - inode_t *inode, - uint32_t weight); +ioc_inode_update (ioc_table_t *table, inode_t *inode, uint32_t weight); int64_t ioc_page_destroy (ioc_page_t *page); @@ -314,13 +314,11 @@ void ioc_inode_flush (ioc_inode_t *ioc_inode); void -ioc_inode_wakeup (call_frame_t *frame, - ioc_inode_t *ioc_inode, - struct stat *stbuf); +ioc_inode_wakeup (call_frame_t *frame, ioc_inode_t *ioc_inode, + struct stat *stbuf); int8_t -ioc_cache_still_valid (ioc_inode_t *ioc_inode, - struct stat *stbuf); +ioc_cache_still_valid (ioc_inode_t *ioc_inode, struct stat *stbuf); int32_t ioc_prune (ioc_table_t *table); @@ -328,4 +326,4 @@ ioc_prune (ioc_table_t *table); int32_t ioc_need_prune (ioc_table_t *table); -#endif /* __READ_AHEAD_H */ +#endif /* __IO_CACHE_H */ |