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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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24
cmd-join-pane.c
View File

@@ -29,9 +29,9 @@
*/
void cmd_join_pane_key_binding(struct cmd *, int);
enum cmd_retval cmd_join_pane_exec(struct cmd *, struct cmd_ctx *);
enum cmd_retval cmd_join_pane_exec(struct cmd *, struct cmd_q *);
enum cmd_retval join_pane(struct cmd *, struct cmd_ctx *, int);
enum cmd_retval join_pane(struct cmd *, struct cmd_q *, int);
const struct cmd_entry cmd_join_pane_entry = {
"join-pane", "joinp",
@@ -68,13 +68,13 @@ cmd_join_pane_key_binding(struct cmd *self, int key)
}
enum cmd_retval
cmd_join_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
cmd_join_pane_exec(struct cmd *self, struct cmd_q *cmdq)
{
return (join_pane(self, ctx, self->entry == &cmd_join_pane_entry));
return (join_pane(self, cmdq, self->entry == &cmd_join_pane_entry));
}
enum cmd_retval
join_pane(struct cmd *self, struct cmd_ctx *ctx, int not_same_window)
join_pane(struct cmd *self, struct cmd_q *cmdq, int not_same_window)
{
struct args *args = self->args;
struct session *dst_s;
@@ -86,23 +86,23 @@ join_pane(struct cmd *self, struct cmd_ctx *ctx, int not_same_window)
enum layout_type type;
struct layout_cell *lc;
dst_wl = cmd_find_pane(ctx, args_get(args, 't'), &dst_s, &dst_wp);
dst_wl = cmd_find_pane(cmdq, args_get(args, 't'), &dst_s, &dst_wp);
if (dst_wl == NULL)
return (CMD_RETURN_ERROR);
dst_w = dst_wl->window;
dst_idx = dst_wl->idx;
src_wl = cmd_find_pane(ctx, args_get(args, 's'), NULL, &src_wp);
src_wl = cmd_find_pane(cmdq, args_get(args, 's'), NULL, &src_wp);
if (src_wl == NULL)
return (CMD_RETURN_ERROR);
src_w = src_wl->window;
if (not_same_window && src_w == dst_w) {
ctx->error(ctx, "can't join a pane to its own window");
cmdq_error(cmdq, "can't join a pane to its own window");
return (CMD_RETURN_ERROR);
}
if (!not_same_window && src_wp == dst_wp) {
ctx->error(ctx, "source and target panes must be different");
cmdq_error(cmdq, "source and target panes must be different");
return (CMD_RETURN_ERROR);
}
@@ -114,14 +114,14 @@ join_pane(struct cmd *self, struct cmd_ctx *ctx, int not_same_window)
if (args_has(args, 'l')) {
size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
if (cause != NULL) {
ctx->error(ctx, "size %s", cause);
cmdq_error(cmdq, "size %s", cause);
free(cause);
return (CMD_RETURN_ERROR);
}
} else if (args_has(args, 'p')) {
percentage = args_strtonum(args, 'p', 0, 100, &cause);
if (cause != NULL) {
ctx->error(ctx, "percentage %s", cause);
cmdq_error(cmdq, "percentage %s", cause);
free(cause);
return (CMD_RETURN_ERROR);
}
@@ -132,7 +132,7 @@ join_pane(struct cmd *self, struct cmd_ctx *ctx, int not_same_window)
}
lc = layout_split_pane(dst_wp, type, size, args_has(args, 'b'));
if (lc == NULL) {
ctx->error(ctx, "create pane failed: pane too small");
cmdq_error(cmdq, "create pane failed: pane too small");
return (CMD_RETURN_ERROR);
}