diff options
Diffstat (limited to 'vlib/vlib/unix/cj.c')
| -rw-r--r-- | vlib/vlib/unix/cj.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/vlib/vlib/unix/cj.c b/vlib/vlib/unix/cj.c index 553b450ffaa..33ba163abca 100644 --- a/vlib/vlib/unix/cj.c +++ b/vlib/vlib/unix/cj.c @@ -17,6 +17,16 @@ *------------------------------------------------------------------ */ +/** + * @file + * Circular joournal diagnostic mechanism. + * + * The @c cj thread-safe circular log buffer scheme is occasionally useful + * when chasing bugs. Calls to it should not be checked in. + */ +/*? %%clicmd:group_label Circular Journal %% ?*/ +/*? %%syscfg:group_label Circular Journal %% ?*/ + #include <stdio.h> #include <vlib/vlib.h> @@ -94,6 +104,18 @@ cj_config (vlib_main_t * vm, unformat_input_t * input) return 0; } +/*? + * Configure the circular journal diagnostic mechanism. This is only useful + * if you, the deveoper, have written code to make use of the circular + * journal. + * + * @cfgcmd{records, <number>} + * Configure the number of records to allocate for the circular journal. + * + * @cfgcmd{on} + * Enable the collection of records in the circular journal at the + * earliest opportunity. +?*/ VLIB_CONFIG_FUNCTION (cj_config, "cj"); void @@ -220,10 +242,21 @@ cj_command_fn (vlib_main_t * vm, return 0; } +/*? + * Enable, disable the collection of diagnostic data into a + * circular journal or dump the circular journal diagnostic data. + * This is only useful if you, the deveoper, have written code to make + * use of the circular journal. + * + * When dumping the data it is formatted and sent to @c stderr of the + * VPP process; when running VPP in <code>unix interactive</code> mode + * this is typically the same place as the Debug CLI. +?*/ + /* *INDENT-OFF* */ VLIB_CLI_COMMAND (cj_command,static) = { .path = "cj", - .short_help = "cj", + .short_help = "cj <enable | disable | dump>", .function = cj_command_fn, }; /* *INDENT-ON* */ |