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diff --git a/src/spdk/examples/blob/cli/README.md b/src/spdk/examples/blob/cli/README.md new file mode 100644 index 00000000..c457ad4e --- /dev/null +++ b/src/spdk/examples/blob/cli/README.md @@ -0,0 +1,61 @@ +The blobcli tool has several options that are listed by using the -h command +however the three operating modes are covered in more detail here: + +Command Mode +------------ +This is the default and will just execute one command at a time. It's simple +but the downside is that if you are going to interact quite a bit with the +blobstore, the startup time for the application can be cumbersome. + +Shell Mode +---------- +You startup shell mode by using the -S command. At that point you will get +a "blob>" prompt where you can enter any of the commands, including -h, +to execute them. You can stil enter just one at a time but the initial +startup time for the application will not get in the way between commands +anymore so it is much more usable. + +Script (aka test) Mode +---------------------- +In script mode you just supply one command with a filename when you start +the cli, for example `blobcli -T test.bs` will feed the tool the file +called test.bs which contains a series of commands that will all run +automatically and, like shell mode, will only initialize one time so is +quick. + +The script file format (example) is shown below. Comments are allowed and +each line should contain one valid command (and its parameters) only. In +order to operate on blobs via their ID value, use the token $Bn where n +represents the instance of the blob created in the script. + +For example, the line `-s $B0` will operate on the blobid of the first +blob created in the script (0 index based). `$B2` represents the third +blob created in the script. + +If you start test mode with the additional "ignore" option, any invalid +script lines will simply be skipped, otherwise the tool will exit if +it runs into an invalid line (ie './blobcli -T test.bs ignore`). + +Sample test/bs file: +~~~{.sh} +# this is a comment +-i +-s bs +-l bdevs +-n 1 +-s bs +-s $B0 +-n 2 +-s $B1 +-m $B0 Makefile +-d $B0 M.blob +-f $B1 65 +-d $B1 65.blob +-s bs +-x $B0 b0key boval +-x $B1 b1key b1val +-r $B0 b0key +-s $B0 +-s $B1 +-s bs +~~~ |