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authorAnand Avati <avati@gluster.com>2010-06-07 12:37:34 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-06-07 11:58:50 -0700
commit79241696fbdebe2583298f12cbaee068ce60c655 (patch)
tree42e60d351e328fa34f17242c6c3359a8c01e8fa3 /libglusterfs/src/glusterfs.h
parentc4ebd25a176d6d51d702b1009e261c3c27237a48 (diff)
dynamic volume changes for graph replacement
Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
Diffstat (limited to 'libglusterfs/src/glusterfs.h')
-rw-r--r--libglusterfs/src/glusterfs.h101
1 files changed, 65 insertions, 36 deletions
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index f4134d9ea..b6db51489 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -45,6 +45,7 @@
#include "list.h"
#include "logging.h"
+
#define GF_YES 1
#define GF_NO 0
@@ -95,7 +96,7 @@ typedef enum {
GF_FOP_WRITE,
GF_FOP_STATFS,
GF_FOP_FLUSH,
- GF_FOP_FSYNC,
+ GF_FOP_FSYNC, /* 15 */
GF_FOP_SETXATTR,
GF_FOP_GETXATTR,
GF_FOP_REMOVEXATTR,
@@ -104,7 +105,7 @@ typedef enum {
GF_FOP_ACCESS,
GF_FOP_CREATE,
GF_FOP_FTRUNCATE,
- GF_FOP_FSTAT,
+ GF_FOP_FSTAT, /* 25 */
GF_FOP_LK,
GF_FOP_LOOKUP,
GF_FOP_READDIR,
@@ -141,6 +142,7 @@ typedef enum {
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,
@@ -148,32 +150,38 @@ typedef enum {
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_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
@@ -186,17 +194,18 @@ typedef enum {
#define GF_REPLICATE_TRASH_DIR ".landfill"
struct _xlator_cmdline_option {
- struct list_head cmd_args;
- char *volume;
- char *key;
- char *value;
+ 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 *volume_file;
+ char *volfile;
char *log_server;
gf_loglevel_t log_level;
char *log_file;
@@ -229,41 +238,61 @@ struct _cmd_args {
};
typedef struct _cmd_args cmd_args_t;
-struct _glusterfs_ctx {
- cmd_args_t cmd_args;
- char *process_uuid;
- FILE *specfp;
- FILE *pidfp;
- char fin;
- void *timer;
- void *ib;
- void *pool;
- void *graph;
- void *top; /* either fuse or server protocol */
- void *event_pool;
- void *iobuf_pool;
- pthread_mutex_t lock;
- int xl_count;
- uint32_t volfile_checksum;
- size_t page_size;
- unsigned char measure_latency; /* toggle switch for latency measurement */
+
+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_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 */