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Add a command queue to standardize and simplify commands that call other

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commands and allow a command to block execution of subsequent commands. This
allows run-shell and if-shell to be synchronous which has been much requested.

Each client has a default command queue and commands are consumed one at a time
from it. A command may suspend execution from the queue by returning
CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example
run-shell does this from the callback that is fired after the job is freed.

When the command queue becomes empty, command clients are automatically exited
(unless attaching). A callback is also fired - this is used for nested commands
in, for example, if-shell which can block execution of the client's cmdq until
a new cmdq becomes empty.

Also merge all the old error/info/print functions together and lose the old
curclient/cmdclient distinction - a cmdq is bound to one client (or none if in
the configuration file), this is a command client if c->session is NULL
otherwise an attached client.
This commit is contained in:
Nicholas Marriott
2013-02-23 22:25:58 +00:00
parent 357da035b9
commit 3964309c67
86 changed files with 1218 additions and 1219 deletions
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17
cmd-command-prompt.c
View File

@ -31,7 +31,7 @@
void cmd_command_prompt_key_binding(struct cmd *, int);
int cmd_command_prompt_check(struct args *);
enum cmd_retval cmd_command_prompt_exec(struct cmd *, struct cmd_ctx *);
enum cmd_retval cmd_command_prompt_exec(struct cmd *, struct cmd_q *);
int cmd_command_prompt_callback(void *, const char *);
void cmd_command_prompt_free(void *);
@ -85,7 +85,7 @@ cmd_command_prompt_key_binding(struct cmd *self, int key)
}
enum cmd_retval
cmd_command_prompt_exec(struct cmd *self, struct cmd_ctx *ctx)
cmd_command_prompt_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
const char *inputs, *prompts;
@ -94,7 +94,7 @@ cmd_command_prompt_exec(struct cmd *self, struct cmd_ctx *ctx)
char *prompt, *ptr, *input = NULL;
size_t n;
if ((c = cmd_find_client(ctx, args_get(args, 't'), 0)) == NULL)
if ((c = cmd_find_client(cmdq, args_get(args, 't'), 0)) == NULL)
return (CMD_RETURN_ERROR);
if (c->prompt_string != NULL)
@ -150,7 +150,6 @@ cmd_command_prompt_callback(void *data, const char *s)
struct cmd_command_prompt_cdata *cdata = data;
struct client *c = cdata->c;
struct cmd_list *cmdlist;
struct cmd_ctx *ctx;
char *cause, *new_template, *prompt, *ptr;
char *input = NULL;
@ -175,7 +174,7 @@ cmd_command_prompt_callback(void *data, const char *s)
return (1);
}
if (cmd_string_parse(new_template, &cmdlist, &cause) != 0) {
if (cmd_string_parse(new_template, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
*cause = toupper((u_char) *cause);
status_message_set(c, "%s", cause);
@ -184,14 +183,8 @@ cmd_command_prompt_callback(void *data, const char *s)
return (0);
}
ctx = cmd_get_ctx(NULL, c);
ctx->error = key_bindings_error;
ctx->print = key_bindings_print;
ctx->info = key_bindings_info;
cmd_list_exec(cmdlist, ctx);
cmdq_run(c->cmdq, cmdlist);
cmd_list_free(cmdlist);
cmd_free_ctx(ctx);
if (c->prompt_callbackfn != (void *) &cmd_command_prompt_callback)
return (1);