[Libguestfs] [PATCH v4 2/2] New API: btfs_scrub_status
Chen Hanxiao
chenhanxiao at cn.fujitsu.com
Fri Feb 13 10:06:55 UTC 2015
From: Hu Tao <hutao at cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao at cn.fujitsu.com>
Signed-off-by: Chen Hanxiao <chenhanxiao at cn.fujitsu.com>
---
daemon/btrfs.c | 142 +++++++++++++++++++++++++++++++
generator/actions.ml | 16 ++++
generator/structs.ml | 22 +++++
gobject/Makefile.inc | 2 +
java/Makefile.inc | 1 +
java/com/redhat/et/libguestfs/.gitignore | 1 +
po/POTFILES | 1 +
src/MAX_PROC_NR | 2 +-
8 files changed, 186 insertions(+), 1 deletion(-)
diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index a979327..e2c3802 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -1785,3 +1785,145 @@ error:
return NULL;
}
+
+guestfs_int_btrfsscrub *
+do_btrfs_scrub_status (const char *path)
+{
+ const size_t MAX_ARGS = 64;
+ const char *argv[MAX_ARGS];
+ size_t i = 0;
+ CLEANUP_FREE char *path_buf = NULL;
+ CLEANUP_FREE char *err = NULL;
+ char *out;
+ int r;
+ guestfs_int_btrfsscrub *ret;
+ char **lines;
+
+ path_buf = sysroot_path (path);
+ if (path_buf == NULL) {
+ reply_with_perror ("malloc");
+ return NULL;
+ }
+
+ ADD_ARG (argv, i, str_btrfs);
+ ADD_ARG (argv, i, "scrub");
+ ADD_ARG (argv, i, "status");
+ ADD_ARG (argv, i, "-R");
+ ADD_ARG (argv, i, path_buf);
+ ADD_ARG (argv, i, NULL);
+
+ r = commandv (&out, &err, argv);
+ if (r == -1) {
+ reply_with_error ("%s: %s", path, err);
+ return NULL;
+ }
+
+ if (verbose)
+ fprintf (stderr, "output from 'btrfs scrub status -R %s' is:\n%s", path, out);
+
+ lines = split_lines (out);
+ if (!lines)
+ return NULL;
+
+ if (count_strings (lines) < 2) {
+ reply_with_error ("truncated output from 'btrfs scrub status -R' command");
+ return NULL;
+ }
+
+ ret = malloc (sizeof *ret);
+ if (ret == NULL) {
+ reply_with_perror ("malloc");
+ return NULL;
+ }
+ memset (ret, 0, sizeof(*ret));
+
+ /* Output of `btrfs scrub -R status' is like:
+ *
+ * scrub status for 346121d1-1847-40f8-9b7b-2bf3d539c68f
+ * scrub started at Mon Feb 2 17:39:38 2015, running for 93 seconds
+ * data_extents_scrubbed: 136670
+ * tree_extents_scrubbed: 30023
+ * data_bytes_scrubbed: 4474441728
+ * tree_bytes_scrubbed: 491896832
+ * read_errors: 0
+ * csum_errors: 0
+ * verify_errors: 0
+ * no_csum: 17760
+ * csum_discards: 197622
+ * super_errors: 0
+ * malloc_errors: 0
+ * uncorrectable_errors: 0
+ * unverified_errors: 0
+ * corrected_errors: 0
+ * last_physical: 10301341696
+ *
+ * or:
+ *
+ * scrub status for 346121d1-1847-40f8-9b7b-2bf3d539c68f
+ * no stats available
+ */
+ for (i = 1; lines[i] != NULL; ++i) {
+ if ((i == 1) && STREQ (lines[i], "\tno stats available"))
+ return ret;
+ else if (sscanf (lines[i], "\tdata_extents_scrubbed: %" SCNu64,
+ &ret->btrfsscrub_data_extents_scrubbed) == 1)
+ continue;
+ else if (sscanf (lines[i], "\ttree_extents_scrubbed: %" SCNu64,
+ &ret->btrfsscrub_tree_extents_scrubbed) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tdata_bytes_scrubbed: %" SCNu64,
+ &ret->btrfsscrub_data_bytes_scrubbed) == 1)
+ continue;
+ else if (sscanf (lines[i], "\ttree_bytes_scrubbed: %" SCNu64,
+ &ret->btrfsscrub_tree_bytes_scrubbed) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tread_errors: %" SCNu64,
+ &ret->btrfsscrub_read_errors) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tcsum_errors: %" SCNu64,
+ &ret->btrfsscrub_csum_errors) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tverify_errors: %" SCNu64,
+ &ret->btrfsscrub_verify_errors) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tno_csum: %" SCNu64,
+ &ret->btrfsscrub_no_csum) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tcsum_discards: %" SCNu64,
+ &ret->btrfsscrub_csum_discards) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tsuper_errors: %" SCNu64,
+ &ret->btrfsscrub_super_errors) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tmalloc_errors: %" SCNu64,
+ &ret->btrfsscrub_malloc_errors) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tuncorrectable_errors: %" SCNu64,
+ &ret->btrfsscrub_uncorrectable_errors) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tunverified_errors: %" SCNu64,
+ &ret->btrfsscrub_unverified_errors) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tcorrected_errors: %" SCNu64,
+ &ret->btrfsscrub_corrected_errors) == 1)
+ continue;
+ else if (sscanf (lines[i], "\tlast_physical: %" SCNu64,
+ &ret->btrfsscrub_last_physical) == 1)
+ continue;
+ else
+ goto error;
+ }
+
+ if (i < 17) {
+ reply_with_error ("truncated output from 'btrfs scrub status -R' command");
+ free (ret);
+ return NULL;
+ }
+
+ return ret;
+
+error:
+ reply_with_error ("%s: could not parse btrfs scrub status.", lines[i]);
+ free (ret);
+ return NULL;
+}
diff --git a/generator/actions.ml b/generator/actions.ml
index 5301a29..f82ac32 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -12459,6 +12459,22 @@ Return the GUID of numbered GPT partition C<partnum>." };
longdesc = "\
Show the status of a running or paused balance on a btrfs filesystem." };
+ { defaults with
+ name = "btrfs_scrub_status";
+ style = RStruct ("status", "btrfsscrub"), [Pathname "path"], [];
+ proc_nr = Some 449;
+ optional = Some "btrfs"; camel_name = "BTRFSScrubStatus";
+ tests = [
+ InitPartition, Always, TestRun (
+ [["mkfs_btrfs"; "/dev/sda1"; ""; ""; "NOARG"; ""; "NOARG"; "NOARG"; ""; ""];
+ ["mount"; "/dev/sda1"; "/"];
+ ["btrfs_scrub_start"; "/"];
+ ["btrfs_scrub_status"; "/"]]), [];
+ ];
+ shortdesc = "show status of running or finished scrub";
+ longdesc = "\
+Show status of running or finished scrub on a btrfs filesystem." };
+
]
(* Non-API meta-commands available only in guestfish.
diff --git a/generator/structs.ml b/generator/structs.ml
index af42529..ea110a1 100644
--- a/generator/structs.ml
+++ b/generator/structs.ml
@@ -352,6 +352,28 @@ let structs = [
];
s_camel_name = "BTRFSBalance" };
+ (* btrfs scrub status output *)
+ { defaults with
+ s_name = "btrfsscrub";
+ s_cols = [
+ "btrfsscrub_data_extents_scrubbed", FUInt64;
+ "btrfsscrub_tree_extents_scrubbed", FUInt64;
+ "btrfsscrub_data_bytes_scrubbed", FUInt64;
+ "btrfsscrub_tree_bytes_scrubbed", FUInt64;
+ "btrfsscrub_read_errors", FUInt64;
+ "btrfsscrub_csum_errors", FUInt64;
+ "btrfsscrub_verify_errors", FUInt64;
+ "btrfsscrub_no_csum", FUInt64;
+ "btrfsscrub_csum_discards", FUInt64;
+ "btrfsscrub_super_errors", FUInt64;
+ "btrfsscrub_malloc_errors", FUInt64;
+ "btrfsscrub_uncorrectable_errors", FUInt64;
+ "btrfsscrub_unverified_errors", FUInt64;
+ "btrfsscrub_corrected_errors", FUInt64;
+ "btrfsscrub_last_physical", FUInt64;
+ ];
+ s_camel_name = "BTRFSScrub" };
+
(* XFS info descriptor. *)
{ defaults with
s_name = "xfsinfo";
diff --git a/gobject/Makefile.inc b/gobject/Makefile.inc
index 3ce10f9..6bbd72c 100644
--- a/gobject/Makefile.inc
+++ b/gobject/Makefile.inc
@@ -27,6 +27,7 @@ guestfs_gobject_headers= \
include/guestfs-gobject/struct-application2.h \
include/guestfs-gobject/struct-btrfsbalance.h \
include/guestfs-gobject/struct-btrfsqgroup.h \
+ include/guestfs-gobject/struct-btrfsscrub.h \
include/guestfs-gobject/struct-btrfssubvolume.h \
include/guestfs-gobject/struct-dirent.h \
include/guestfs-gobject/struct-hivex_node.h \
@@ -111,6 +112,7 @@ guestfs_gobject_sources= \
src/struct-application2.c \
src/struct-btrfsbalance.c \
src/struct-btrfsqgroup.c \
+ src/struct-btrfsscrub.c \
src/struct-btrfssubvolume.c \
src/struct-dirent.c \
src/struct-hivex_node.c \
diff --git a/java/Makefile.inc b/java/Makefile.inc
index 499d3de..477842a 100644
--- a/java/Makefile.inc
+++ b/java/Makefile.inc
@@ -24,6 +24,7 @@ java_built_sources = \
com/redhat/et/libguestfs/Application2.java \
com/redhat/et/libguestfs/BTRFSBalance.java \
com/redhat/et/libguestfs/BTRFSQgroup.java \
+ com/redhat/et/libguestfs/BTRFSScrub.java \
com/redhat/et/libguestfs/BTRFSSubvolume.java \
com/redhat/et/libguestfs/Dirent.java \
com/redhat/et/libguestfs/HivexNode.java \
diff --git a/java/com/redhat/et/libguestfs/.gitignore b/java/com/redhat/et/libguestfs/.gitignore
index b2b1b22..8389269 100644
--- a/java/com/redhat/et/libguestfs/.gitignore
+++ b/java/com/redhat/et/libguestfs/.gitignore
@@ -2,6 +2,7 @@ Application.java
Application2.java
BTRFSBalance.java
BTRFSQgroup.java
+BTRFSScrub.java
BTRFSSubvolume.java
Dirent.java
HivexNode.java
diff --git a/po/POTFILES b/po/POTFILES
index 3f66c9f..f1c42fe 100644
--- a/po/POTFILES
+++ b/po/POTFILES
@@ -232,6 +232,7 @@ gobject/src/struct-application.c
gobject/src/struct-application2.c
gobject/src/struct-btrfsbalance.c
gobject/src/struct-btrfsqgroup.c
+gobject/src/struct-btrfsscrub.c
gobject/src/struct-btrfssubvolume.c
gobject/src/struct-dirent.c
gobject/src/struct-hivex_node.c
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index 5379c47..2b20fd0 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-448
+449
--
2.1.0
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