From 60ba4641d61ba65943ac7a8c800e82d6665ee11f Mon Sep 17 00:00:00 2001 From: Zachary T Welch Date: Sat, 21 Nov 2009 13:59:51 -0800 Subject: add command registration chaining Adds the ability to chain registration structures. Modules can define a command with the 'chain' and 'num_chain' fields defined in their registration table, and the register_commands() function will initialize these commands. If the registration record creates a new command, then the chained commands are created under it; otherwise, they are created in the same context as the other commands (i.e. the parent argument). --- src/helper/command.c | 30 ++++++++++++++++++++++++------ 1 file changed, 24 insertions(+), 6 deletions(-) (limited to 'src/helper/command.c') diff --git a/src/helper/command.c b/src/helper/command.c index 9cc996c2..b81d2d19 100644 --- a/src/helper/command.c +++ b/src/helper/command.c @@ -331,18 +331,36 @@ struct command* register_command(struct command_context *context, int register_commands(struct command_context *cmd_ctx, struct command *parent, const struct command_registration *cmds) { + int retval = ERROR_OK; unsigned i; - for (i = 0; cmds[i].name; i++) + for (i = 0; cmds[i].name || cmds[i].chain; i++) { - struct command *c = register_command(cmd_ctx, parent, cmds + i); - if (NULL != c) - continue; + const struct command_registration *cr = cmds + i; + struct command *c = NULL; + if (NULL != cr->name) + { + c = register_command(cmd_ctx, parent, cr); + if (NULL == c) + { + retval = ERROR_FAIL; + break; + } + } + if (NULL != cr->chain) + { + struct command *p = c ? : parent; + retval = register_commands(cmd_ctx, p, cr->chain); + if (ERROR_OK != retval) + break; + } + } + if (ERROR_OK != retval) + { for (unsigned j = 0; j < i; j++) unregister_command(cmd_ctx, parent, cmds[j].name); - return ERROR_FAIL; } - return ERROR_OK; + return retval; } int unregister_all_commands(struct command_context *context, -- cgit v1.2.3