1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
gethrtime(void)15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _FB_FILESET_H
27 #define	_FB_FILESET_H
28 
29 #include "filebench.h"
30 
31 #define	FILE_ALLOC_BLOCK (off64_t)(1024 * 1024)
32 
33 #define	FSE_MAXTID 16384
34 
35 #define	FSE_MAXPATHLEN 16
36 #define	FSE_TYPE_FILE		0x00
37 #define	FSE_TYPE_DIR		0x01
38 #define	FSE_TYPE_LEAFDIR	0x02
39 #define	FSE_TYPE_MASK		0x03
40 #define	FSE_FREE		0x04
41 #define	FSE_EXISTS		0x08
42 #define	FSE_BUSY		0x10
43 #define	FSE_REUSING		0x20
44 #define	FSE_THRD_WAITNG		0x40
45 
46 typedef struct filesetentry {
47 	struct filesetentry	*fse_next;	/* master list of entries */
48 	struct filesetentry	*fse_parent;	/* link to directory */
49 	avl_node_t		fse_link;	/* links in avl btree, prot. */
50 						/*    by fs_pick_lock */
51 	uint_t			fse_index;	/* file order number */
52 	struct filesetentry	*fse_nextoftype; /* List of specific fse */
53 	struct fileset		*fse_fileset;	/* Parent fileset */
54 	char			*fse_path;
55 	int			fse_depth;
56 	off64_t			fse_size;
57 	int			fse_open_cnt;	/* protected by fs_pick_lock */
58 	int			fse_flags;	/* protected by fs_pick_lock */
59 } filesetentry_t;
60 
61 #define	FSE_OFFSETOF(f)	((size_t)(&(((filesetentry_t *)0)->f)))
62 
63 /* type of fileset entry to obtain */
64 #define	FILESET_PICKFILE    0x00 /* Pick a file from the set */
65 #define	FILESET_PICKDIR	    0x01 /* Pick a directory */
66 #define	FILESET_PICKLEAFDIR 0x02 /* Pick a leaf directory */
67 #define	FILESET_PICKMASK    0x03 /* Pick type mask */
68 /* other pick flags */
69 #define	FILESET_PICKUNIQUE  0x04 /* Pick a unique file or leafdir from the */
70 				    /* fileset until empty */
71 #define	FILESET_PICKEXISTS  0x10 /* Pick an existing file */
72 #define	FILESET_PICKNOEXIST 0x20 /* Pick a file that doesn't exist */
73 #define	FILESET_PICKBYINDEX 0x40 /* use supplied index number to select file */
74 #define	FILESET_PICKFREE    FILESET_PICKUNIQUE
75 
76 /* fileset attributes */
77 #define	FILESET_IS_RAW_DEV  0x01 /* fileset is a raw device */
78 #define	FILESET_IS_FILE	    0x02 /* Fileset is emulating a single file */
79 
80 typedef struct fileset {
81 	struct fileset	*fs_next;	/* Next in list */
82 	avd_t		fs_name;	/* Name */
83 	avd_t		fs_path;	/* Pathname prefix in fileset */
84 	avd_t		fs_entries;	/* Number of entries attr */
85 					/* (possibly random) */
86 	fbint_t		fs_constentries; /* Constant version of enties attr */
87 	avd_t		fs_leafdirs;	/* Number of leaf directories attr */
88 					/* (possibly random) */
89 	fbint_t		fs_constleafdirs; /* Constant version of leafdirs */
90 					    /* attr */
91 	avd_t		fs_preallocpercent; /* Prealloc size */
92 	int		fs_attrs;	/* Attributes */
93 	avd_t		fs_dirwidth;	/* Explicit or mean for distribution */
94 	avd_t		fs_dirdepthrv;	/* random variable for dir depth */
95 	avd_t		fs_size;	/* Explicit or mean for distribution */
96 	avd_t		fs_dirgamma;	/* Dirdepth Gamma distribution */
97 					/* (* 1000) defaults to 1500, set */
98 					/* to 0 for explicit depth */
99 	avd_t		fs_create;	/* Attr */
100 	avd_t		fs_paralloc;	/* Attr */
101 	avd_t		fs_reuse;	/* Attr */
102 	avd_t		fs_readonly;	/* Attr */
103 	avd_t		fs_writeonly;	/* Attr */
104 	avd_t		fs_trust_tree;	/* Attr */
105 	double		fs_meandepth;	/* Computed mean depth */
106 	double		fs_meanwidth;	/* Specified mean dir width */
107 	int		fs_realfiles;	/* Actual files */
108 	int		fs_realleafdirs; /* Actual explicit leaf directories */
109 	off64_t		fs_bytes;	/* Total space consumed by files */
110 
111 	int64_t		fs_idle_files;	/* number of files NOT busy */
112 	pthread_cond_t	fs_idle_files_cv; /* idle files condition variable */
113 
114 	int64_t		fs_idle_dirs;	/* number of dirs NOT busy */
115 	pthread_cond_t	fs_idle_dirs_cv; /* idle dirs condition variable */
116 
117 	int64_t		fs_idle_leafdirs; /* number of dirs NOT busy */
118 	pthread_cond_t	fs_idle_leafdirs_cv; /* idle dirs condition variable */
119 
120 	pthread_mutex_t	fs_pick_lock;	/* per fileset "pick" function lock */
121 	pthread_cond_t	fs_thrd_wait_cv; /* per fileset file busy wait cv */
122 	avl_tree_t	fs_free_files;	/* btree of free files */
123 	avl_tree_t	fs_exist_files;	/* btree of files on device */
124 	avl_tree_t	fs_noex_files;	/* btree of files NOT on device */
125 	avl_tree_t	fs_dirs;	/* btree of internal dirs */
126 	avl_tree_t	fs_free_leaf_dirs; /* btree of free leaf dirs */
127 	avl_tree_t	fs_exist_leaf_dirs; /* btree of leaf dirs on device */
128 	avl_tree_t	fs_noex_leaf_dirs;  /* btree of leaf dirs NOT */
129 					    /* currently on device */
130 	filesetentry_t	*fs_filelist;	/* List of files */
131 	uint_t		fs_file_exrotor[FSE_MAXTID];	/* next file to */
132 							/* select */
133 	uint_t		fs_file_nerotor;	/* next non existent file */
134 						/* to select for createfile */
135 	filesetentry_t	*fs_dirlist;	/* List of directories */
136 	uint_t		fs_dirrotor;	/* index of next directory to select */
137 	filesetentry_t	*fs_leafdirlist; /* List of leaf directories */
138 	uint_t		fs_leafdir_exrotor;	/* Ptr to next existing leaf */
139 						/* directory to select */
140 	uint_t		fs_leafdir_nerotor;	/* Ptr to next non-existing */
141 	int		*fs_filehistop;		/* Ptr to access histogram */
142 	pthread_mutex_t	fs_histo_lock;	/* lock for incr of histo */
143 } fileset_t;
144 
145 int fileset_createsets();
146 
147 void fileset_delete_all_filesets(void);
148 int fileset_openfile(fb_fdesc_t *fd, fileset_t *fileset,
149     filesetentry_t *entry, int flag, int mode, int attrs);
150 fileset_t *fileset_define(avd_t name, avd_t path);
151 fileset_t *fileset_find(char *name);
152 filesetentry_t *fileset_pick(fileset_t *fileset, int flags, int tid,
153     int index);
154 char *fileset_resolvepath(filesetentry_t *entry);
155 int fileset_iter(int (*cmd)(fileset_t *fileset, int first));
156 int fileset_print(fileset_t *fileset, int first);
157 void fileset_unbusy(filesetentry_t *entry, int update_exist,
158     int new_exist_val, int open_cnt_incr);
159 int fileset_dump_histo(fileset_t *fileset, int first);
160 void fileset_attach_all_histos(void);
161 
162 #endif	/* _FB_FILESET_H */
163