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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
Download Patch File Download Diff File Expand all files Collapse all files

10
cmd-paste-buffer.c
View File

@ -27,7 +27,7 @@
* Paste paste buffer if present.
*/
enum cmd_retval cmd_paste_buffer_exec(struct cmd *, struct cmd_ctx *);
enum cmd_retval cmd_paste_buffer_exec(struct cmd *, struct cmd_q *);
void cmd_paste_buffer_filter(struct window_pane *,
const char *, size_t, const char *, int);
@ -43,7 +43,7 @@ const struct cmd_entry cmd_paste_buffer_entry = {
};
enum cmd_retval
cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
cmd_paste_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct window_pane *wp;
@ -54,7 +54,7 @@ cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
int buffer;
int pflag;
if (cmd_find_pane(ctx, args_get(args, 't'), &s, &wp) == NULL)
if (cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp) == NULL)
return (CMD_RETURN_ERROR);
if (!args_has(args, 'b'))
@ -62,7 +62,7 @@ cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
else {
buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
if (cause != NULL) {
ctx->error(ctx, "buffer %s", cause);
cmdq_error(cmdq, "buffer %s", cause);
free(cause);
return (CMD_RETURN_ERROR);
}
@ -73,7 +73,7 @@ cmd_paste_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
else {
pb = paste_get_index(&global_buffers, buffer);
if (pb == NULL) {
ctx->error(ctx, "no buffer %d", buffer);
cmdq_error(cmdq, "no buffer %d", buffer);
return (CMD_RETURN_ERROR);
}
}