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/*
Copyright (c) 2006-2009 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 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 _GLUSTERFS_H
#define _GLUSTERFS_H
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <netdb.h>
#include <errno.h>
#include <dirent.h>
#include <unistd.h>
#include <fcntl.h>
#include <arpa/inet.h>
#include <sys/poll.h>
#include <pthread.h>
#include "list.h"
#include "logging.h"
#define GF_YES 1
#define GF_NO 0
#ifndef O_LARGEFILE
/* savannah bug #20053, patch for compiling on darwin */
#define O_LARGEFILE 0
#endif
#ifndef O_DIRECT
/* savannah bug #20050, #20052 */
#define O_DIRECT 0 /* From asm/fcntl.h */
#endif
#ifndef O_DIRECTORY
/* FreeBSD does not need O_DIRECTORY */
#define O_DIRECTORY 0
#endif
#define ZR_FILE_CONTENT_STR "glusterfs.file."
#define ZR_FILE_CONTENT_STRLEN 15
#define GLUSTERFS_OPEN_FD_COUNT "glusterfs.open-fd-count"
#define GLUSTERFS_INODELK_COUNT "glusterfs.inodelk-count"
#define GLUSTERFS_ENTRYLK_COUNT "glusterfs.entrylk-count"
#define GLUSTERFS_POSIXLK_COUNT "glusterfs.posixlk-count"
#define ZR_FILE_CONTENT_REQUEST(key) (!strncmp(key, ZR_FILE_CONTENT_STR, \
ZR_FILE_CONTENT_STRLEN))
/* TODO: Should we use PATH-MAX? On some systems it may save space */
#define ZR_PATH_MAX 4096
/* NOTE: add members ONLY at the end (just before _MAXVALUE) */
typedef enum {
GF_FOP_NULL = 0,
GF_FOP_STAT,
GF_FOP_READLINK,
GF_FOP_MKNOD,
GF_FOP_MKDIR,
GF_FOP_UNLINK,
GF_FOP_RMDIR,
GF_FOP_SYMLINK,
GF_FOP_RENAME,
GF_FOP_LINK,
GF_FOP_TRUNCATE,
GF_FOP_OPEN,
GF_FOP_READ,
GF_FOP_WRITE,
GF_FOP_STATFS,
GF_FOP_FLUSH,
GF_FOP_FSYNC, /* 15 */
GF_FOP_SETXATTR,
GF_FOP_GETXATTR,
GF_FOP_REMOVEXATTR,
GF_FOP_OPENDIR,
GF_FOP_FSYNCDIR,
GF_FOP_ACCESS,
GF_FOP_CREATE,
GF_FOP_FTRUNCATE,
GF_FOP_FSTAT, /* 25 */
GF_FOP_LK,
GF_FOP_LOOKUP,
GF_FOP_READDIR,
GF_FOP_INODELK,
GF_FOP_FINODELK,
GF_FOP_ENTRYLK,
GF_FOP_FENTRYLK,
GF_FOP_CHECKSUM,
GF_FOP_XATTROP,
GF_FOP_FXATTROP,
GF_FOP_FGETXATTR,
GF_FOP_FSETXATTR,
GF_FOP_RCHECKSUM,
GF_FOP_SETATTR,
GF_FOP_FSETATTR,
GF_FOP_READDIRP,
GF_FOP_FORGET,
GF_FOP_RELEASE,
GF_FOP_RELEASEDIR,
GF_FOP_GETSPEC,
GF_FOP_MAXVALUE,
} glusterfs_fop_t;
typedef enum {
GF_MGMT_NULL = 0,
GF_MGMT_MAXVALUE,
} glusterfs_mgmt_t;
typedef enum {
GF_OP_TYPE_NULL = 0,
GF_OP_TYPE_FOP,
GF_OP_TYPE_MGMT,
GF_OP_TYPE_MAX,
} gf_op_type_t;
/* NOTE: all the miscellaneous flags used by GlusterFS should be listed here */
typedef enum {
GF_LK_GETLK = 0,
GF_LK_SETLK,
GF_LK_SETLKW,
} glusterfs_lk_cmds_t;
typedef enum {
GF_LK_F_RDLCK = 0,
GF_LK_F_WRLCK,
GF_LK_F_UNLCK
} glusterfs_lk_types_t;
typedef enum {
GF_LOCK_POSIX,
GF_LOCK_INTERNAL
} gf_lk_domain_t;
typedef enum {
ENTRYLK_LOCK,
ENTRYLK_UNLOCK,
ENTRYLK_LOCK_NB
} entrylk_cmd;
typedef enum {
ENTRYLK_RDLCK,
ENTRYLK_WRLCK
} entrylk_type;
typedef enum {
GF_XATTROP_ADD_ARRAY,
} gf_xattrop_flags_t;
#define GF_SET_IF_NOT_PRESENT 0x1 /* default behaviour */
#define GF_SET_OVERWRITE 0x2 /* Overwrite with the buf given */
#define GF_SET_DIR_ONLY 0x4
#define GF_SET_EPOCH_TIME 0x8 /* used by afr dir lookup selfheal */
/* Directory into which replicate self-heal will move deleted files and
directories into. The storage/posix janitor thread will periodically
clean up this directory */
#define GF_REPLICATE_TRASH_DIR ".landfill"
struct _xlator_cmdline_option {
struct list_head cmd_args;
char *volume;
char *key;
char *value;
};
typedef struct _xlator_cmdline_option xlator_cmdline_option_t;
struct _cmd_args {
/* basic options */
char *volfile_server;
char *volfile;
char *log_server;
gf_loglevel_t log_level;
char *log_file;
int32_t max_connect_attempts;
/* advanced options */
uint32_t volfile_server_port;
char *volfile_server_transport;
uint32_t log_server_port;
char *pid_file;
int no_daemon_mode;
char *run_id;
int debug_mode;
int read_only;
int mac_compat;
struct list_head xlator_options; /* list of xlator_option_t */
/* fuse options */
int fuse_direct_io_mode_flag;
int volfile_check;
double fuse_entry_timeout;
double fuse_attribute_timeout;
char *volume_name;
int fuse_nodev;
int fuse_nosuid;
char *dump_fuse;
/* key args */
char *mount_point;
char *volfile_id;
};
typedef struct _cmd_args cmd_args_t;
struct _glusterfs_graph {
struct list_head list;
char graph_uuid[128];
struct timeval dob;
void *first;
void *top; /* selected by -n */
int xl_count;
uint32_t volfile_checksum;
};
typedef struct _glusterfs_graph glusterfs_graph_t;
struct _glusterfs_ctx {
cmd_args_t cmd_args;
char *process_uuid;
FILE *pidfp;
char fin;
void *timer;
void *ib;
void *pool;
void *event_pool;
void *iobuf_pool;
pthread_mutex_t lock;
size_t page_size;
struct list_head graphs; /* double linked list of graphs - one per volfile parse */
glusterfs_graph_t *active; /* the latest graph in use */
void *master; /* fuse, or libglusterfsclient (however, not protocol/server) */
void *mgmt; /* xlator implementing MOPs for centralized logging, volfile server */
unsigned char measure_latency; /* toggle switch for latency measurement */
pthread_t sigwaiter;
};
typedef struct _glusterfs_ctx glusterfs_ctx_t;
typedef enum {
GF_EVENT_PARENT_UP = 1,
GF_EVENT_POLLIN,
GF_EVENT_POLLOUT,
GF_EVENT_POLLERR,
GF_EVENT_CHILD_UP,
GF_EVENT_CHILD_DOWN,
GF_EVENT_CHILD_CONNECTING,
GF_EVENT_TRANSPORT_CLEANUP,
GF_EVENT_TRANSPORT_CONNECTED,
GF_EVENT_VOLFILE_MODIFIED,
GF_EVENT_GRAPH_NEW,
} glusterfs_event_t;
#define GF_MUST_CHECK __attribute__((warn_unused_result))
int glusterfs_graph_prepare (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx);
int glusterfs_graph_destroy (glusterfs_graph_t *graph);
int glusterfs_graph_activate (glusterfs_ctx_t *ctx, glusterfs_graph_t *graph);
glusterfs_graph_t *glusterfs_graph_construct (FILE *fp);
glusterfs_graph_t *glusterfs_graph_new ();
#endif /* _GLUSTERFS_H */
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