diff options
Diffstat (limited to 'api')
-rw-r--r-- | api/src/gfapi.aliases | 3 | ||||
-rw-r--r-- | api/src/gfapi.map | 2 | ||||
-rw-r--r-- | api/src/glfs-fops.c | 155 | ||||
-rw-r--r-- | api/src/glfs-handleops.c | 48 | ||||
-rw-r--r-- | api/src/glfs-handles.h | 10 | ||||
-rw-r--r-- | api/src/glfs-internal.h | 8 |
6 files changed, 226 insertions, 0 deletions
diff --git a/api/src/gfapi.aliases b/api/src/gfapi.aliases index 6d48ecdf2c9..9776c87fdcb 100644 --- a/api/src/gfapi.aliases +++ b/api/src/gfapi.aliases @@ -131,6 +131,9 @@ _pub_glfs_h_acl_set _glfs_h_acl_set$GFAPI_3.7.0 _pub_glfs_h_acl_get _glfs_h_acl_get$GFAPI_3.7.0 _pub_glfs_h_statfs _glfs_h_statfs$GFAPI_3.7.0 +_pub_glfs_h_anonymous_read _glfs_h_anonymous_read$GFAPI_3.7.0 +_pub_glfs_h_anonymous_write _glfs_h_anonymous_write$GFAPI_3.7.0 + _priv_glfs_free_from_ctx _glfs_free_from_ctx$GFAPI_PRIVATE_3.7.0 _priv_glfs_new_from_ctx _glfs_new_from_ctx$GFAPI_PRIVATE_3.7.0 _priv_glfs_resolve _glfs_resolve$GFAPI_PRIVATE_3.7.0 diff --git a/api/src/gfapi.map b/api/src/gfapi.map index 24209d666dc..48863985135 100644 --- a/api/src/gfapi.map +++ b/api/src/gfapi.map @@ -152,6 +152,8 @@ GFAPI_3.7.0 { glfs_h_acl_set; glfs_h_acl_get; glfs_h_statfs; + glfs_h_anonymous_read; + glfs_h_anonymous_write; } GFAPI_3.6.0; GFAPI_PRIVATE_3.7.0 { diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c index 4aad28005f2..08f0884c7ee 100644 --- a/api/src/glfs-fops.c +++ b/api/src/glfs-fops.c @@ -3625,3 +3625,158 @@ out: } GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_process_upcall_event, 3.7.0); + +ssize_t +glfs_anonymous_pwritev (struct glfs *fs, struct glfs_object *object, + const struct iovec *iovec, int iovcnt, + off_t offset, int flags) +{ + xlator_t *subvol = NULL; + struct iobref *iobref = NULL; + struct iobuf *iobuf = NULL; + struct iovec iov = {0, }; + inode_t *inode = NULL; + fd_t *fd = NULL; + int ret = -1; + size_t size = -1; + + __glfs_entry_fs (fs); + + subvol = glfs_active_subvol (fs); + if (!subvol) { + ret = -1; + errno = EIO; + goto out; + } + + /* get/refresh the in arg objects inode in correlation to the xlator */ + inode = glfs_resolve_inode (fs, subvol, object); + if (!inode) { + ret = -1; + errno = ESTALE; + goto out; + } + + fd = fd_anonymous (inode); + if (!fd) { + ret = -1; + gf_msg ("gfapi", GF_LOG_ERROR, ENOMEM, API_MSG_FDCREATE_FAILED, + "Allocating anonymous fd failed"); + errno = ENOMEM; + goto out; + } + + size = iov_length (iovec, iovcnt); + + iobuf = iobuf_get2 (subvol->ctx->iobuf_pool, size); + if (!iobuf) { + ret = -1; + errno = ENOMEM; + goto out; + } + + iobref = iobref_new (); + if (!iobref) { + iobuf_unref (iobuf); + errno = ENOMEM; + ret = -1; + goto out; + } + + ret = iobref_add (iobref, iobuf); + if (ret) { + iobuf_unref (iobuf); + iobref_unref (iobref); + errno = ENOMEM; + ret = -1; + goto out; + } + + iov_unload (iobuf_ptr (iobuf), iovec, iovcnt); + + iov.iov_base = iobuf_ptr (iobuf); + iov.iov_len = size; + + ret = syncop_writev (subvol, fd, &iov, 1, offset, iobref, flags, + NULL, NULL); + DECODE_SYNCOP_ERR (ret); + + iobuf_unref (iobuf); + iobref_unref (iobref); + + if (ret <= 0) + goto out; + +out: + + if (fd) + fd_unref(fd); + + glfs_subvol_done (fs, subvol); + + return ret; +} + +ssize_t +glfs_anonymous_preadv (struct glfs *fs, struct glfs_object *object, + const struct iovec *iovec, int iovcnt, + off_t offset, int flags) +{ + xlator_t *subvol = NULL; + struct iovec *iov = NULL; + struct iobref *iobref = NULL; + inode_t *inode = NULL; + fd_t *fd = NULL; + int cnt = 0; + ssize_t ret = -1; + ssize_t size = -1; + + __glfs_entry_fs (fs); + + subvol = glfs_active_subvol (fs); + if (!subvol) { + ret = -1; + errno = EIO; + goto out; + } + + /* get/refresh the in arg objects inode in correlation to the xlator */ + inode = glfs_resolve_inode (fs, subvol, object); + if (!inode) { + ret = -1; + errno = ESTALE; + goto out; + } + + fd = fd_anonymous (inode); + if (!fd) { + ret = -1; + gf_msg ("gfapi", GF_LOG_ERROR, ENOMEM, API_MSG_FDCREATE_FAILED, + "Allocating anonymous fd failed"); + errno = ENOMEM; + goto out; + } + + size = iov_length (iovec, iovcnt); + + ret = syncop_readv (subvol, fd, size, offset, flags, &iov, &cnt, + &iobref, NULL, NULL); + DECODE_SYNCOP_ERR (ret); + if (ret <= 0) + goto out; + + size = iov_copy (iovec, iovcnt, iov, cnt); + + ret = size; +out: + if (iov) + GF_FREE (iov); + if (iobref) + iobref_unref (iobref); + if (fd) + fd_unref(fd); + + glfs_subvol_done (fs, subvol); + + return ret; +} diff --git a/api/src/glfs-handleops.c b/api/src/glfs-handleops.c index 4a544f7c905..2793e1cb118 100644 --- a/api/src/glfs-handleops.c +++ b/api/src/glfs-handleops.c @@ -1962,3 +1962,51 @@ pub_glfs_h_acl_set (struct glfs *fs, struct glfs_object *object, #endif GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_acl_set, 3.7.0); GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_acl_get, 3.7.0); + +/* The API to perform read using anonymous fd */ +ssize_t +pub_glfs_h_anonymous_read (struct glfs *fs, struct glfs_object *object, + const void *buf, size_t count, off_t offset) +{ + struct iovec iov = {0, }; + ssize_t ret = 0; + + /* validate in args */ + if ((fs == NULL) || (object == NULL)) { + errno = EINVAL; + return -1; + } + + iov.iov_base = (void *) buf; + iov.iov_len = count; + + ret = glfs_anonymous_preadv (fs, object, &iov, 1, offset, 0); + + return ret; +} + +GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_anonymous_read, 3.7.0); + +/* The API to perform write using anonymous fd */ +ssize_t +pub_glfs_h_anonymous_write (struct glfs *fs, struct glfs_object *object, + const void *buf, size_t count, off_t offset) +{ + struct iovec iov = {0, }; + ssize_t ret = 0; + + /* validate in args */ + if ((fs == NULL) || (object == NULL)) { + errno = EINVAL; + return -1; + } + + iov.iov_base = (void *) buf; + iov.iov_len = count; + + ret = glfs_anonymous_pwritev (fs, object, &iov, 1, offset, 0); + + return ret; +} + +GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_anonymous_write, 3.7.0); diff --git a/api/src/glfs-handles.h b/api/src/glfs-handles.h index 28e9e79b9a3..19c4e8f7a62 100644 --- a/api/src/glfs-handles.h +++ b/api/src/glfs-handles.h @@ -310,6 +310,16 @@ glfs_h_acl_get (struct glfs *fs, struct glfs_object *object, const acl_type_t type) __THROW; GFAPI_PUBLIC(glfs_h_acl_get, 3.7.0); +size_t +glfs_h_anonymous_write (struct glfs *fs, struct glfs_object *object, + const void *buf, size_t count, off_t offset) __THROW + GFAPI_PUBLIC(glfs_h_anonymous_write, 3.7.0); + +ssize_t +glfs_h_anonymous_read (struct glfs *fs, struct glfs_object *object, + const void *buf, size_t count, off_t offset) __THROW + GFAPI_PUBLIC(glfs_h_anonymous_read, 3.7.0); + __END_DECLS #endif /* !_GLFS_HANDLES_H */ diff --git a/api/src/glfs-internal.h b/api/src/glfs-internal.h index 972f2e4cf49..275f8d1534b 100644 --- a/api/src/glfs-internal.h +++ b/api/src/glfs-internal.h @@ -342,4 +342,12 @@ glfs_h_poll_cache_invalidation (struct glfs *fs, struct callback_arg *up_arg, struct gf_upcall *upcall_data); +ssize_t +glfs_anonymous_preadv (struct glfs *fs, struct glfs_object *object, + const struct iovec *iovec, int iovcnt, + off_t offset, int flags); +ssize_t +glfs_anonymous_pwritev (struct glfs *fs, struct glfs_object *object, + const struct iovec *iovec, int iovcnt, + off_t offset, int flags); #endif /* !_GLFS_INTERNAL_H */ |