mirror of
https://github.com/tmux/tmux.git
synced 2024-10-02 09:18:49 +00:00
ddc4512d2e
but there is also now a global command queue. Instead of command queues being dispatched on demand from wherever the command happens to be added, they are now all dispatched from the top level server loop. Command queues may now also include callbacks as well as commands, and items may be inserted after the current command as well as at the end. This all makes command queues significantly more predictable and easier to use, and avoids the complex multiple nested command queues used by source-file, if-shell and friends. A mass rename of struct cmdq to a better name (cmdq_item probably) is coming.
205 lines
4.3 KiB
C
205 lines
4.3 KiB
C
/* $OpenBSD$ */
|
|
|
|
/*
|
|
* Copyright (c) 2012 Thomas Adam <thomas@xteddy.org>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
|
|
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
|
|
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
struct hooks {
|
|
RB_HEAD(hooks_tree, hook) tree;
|
|
struct hooks *parent;
|
|
};
|
|
|
|
static int hooks_cmp(struct hook *, struct hook *);
|
|
RB_GENERATE_STATIC(hooks_tree, hook, entry, hooks_cmp);
|
|
|
|
static struct hook *hooks_find1(struct hooks *, const char *);
|
|
static void hooks_free1(struct hooks *, struct hook *);
|
|
|
|
static int
|
|
hooks_cmp(struct hook *hook1, struct hook *hook2)
|
|
{
|
|
return (strcmp(hook1->name, hook2->name));
|
|
}
|
|
|
|
struct hooks *
|
|
hooks_get(struct session *s)
|
|
{
|
|
if (s != NULL)
|
|
return (s->hooks);
|
|
return (global_hooks);
|
|
}
|
|
|
|
struct hooks *
|
|
hooks_create(struct hooks *parent)
|
|
{
|
|
struct hooks *hooks;
|
|
|
|
hooks = xcalloc(1, sizeof *hooks);
|
|
RB_INIT(&hooks->tree);
|
|
hooks->parent = parent;
|
|
return (hooks);
|
|
}
|
|
|
|
static void
|
|
hooks_free1(struct hooks *hooks, struct hook *hook)
|
|
{
|
|
RB_REMOVE(hooks_tree, &hooks->tree, hook);
|
|
cmd_list_free(hook->cmdlist);
|
|
free((char *)hook->name);
|
|
free(hook);
|
|
}
|
|
|
|
void
|
|
hooks_free(struct hooks *hooks)
|
|
{
|
|
struct hook *hook, *hook1;
|
|
|
|
RB_FOREACH_SAFE(hook, hooks_tree, &hooks->tree, hook1)
|
|
hooks_free1(hooks, hook);
|
|
free(hooks);
|
|
}
|
|
|
|
struct hook *
|
|
hooks_first(struct hooks *hooks)
|
|
{
|
|
return (RB_MIN(hooks_tree, &hooks->tree));
|
|
}
|
|
|
|
struct hook *
|
|
hooks_next(struct hook *hook)
|
|
{
|
|
return (RB_NEXT(hooks_tree, &hooks->tree, hook));
|
|
}
|
|
|
|
void
|
|
hooks_add(struct hooks *hooks, const char *name, struct cmd_list *cmdlist)
|
|
{
|
|
struct hook *hook;
|
|
|
|
if ((hook = hooks_find1(hooks, name)) != NULL)
|
|
hooks_free1(hooks, hook);
|
|
|
|
hook = xcalloc(1, sizeof *hook);
|
|
hook->name = xstrdup(name);
|
|
hook->cmdlist = cmdlist;
|
|
hook->cmdlist->references++;
|
|
RB_INSERT(hooks_tree, &hooks->tree, hook);
|
|
}
|
|
|
|
void
|
|
hooks_remove(struct hooks *hooks, const char *name)
|
|
{
|
|
struct hook *hook;
|
|
|
|
if ((hook = hooks_find1(hooks, name)) != NULL)
|
|
hooks_free1(hooks, hook);
|
|
}
|
|
|
|
static struct hook *
|
|
hooks_find1(struct hooks *hooks, const char *name)
|
|
{
|
|
struct hook hook;
|
|
|
|
hook.name = name;
|
|
return (RB_FIND(hooks_tree, &hooks->tree, &hook));
|
|
}
|
|
|
|
struct hook *
|
|
hooks_find(struct hooks *hooks, const char *name)
|
|
{
|
|
struct hook hook0, *hook;
|
|
|
|
hook0.name = name;
|
|
hook = RB_FIND(hooks_tree, &hooks->tree, &hook0);
|
|
while (hook == NULL) {
|
|
hooks = hooks->parent;
|
|
if (hooks == NULL)
|
|
break;
|
|
hook = RB_FIND(hooks_tree, &hooks->tree, &hook0);
|
|
}
|
|
return (hook);
|
|
}
|
|
|
|
void
|
|
hooks_run(struct hooks *hooks, struct client *c, struct cmd_find_state *fs,
|
|
const char *fmt, ...)
|
|
{
|
|
struct hook *hook;
|
|
va_list ap;
|
|
char *name;
|
|
struct cmd_q *new_cmdq, *loop;
|
|
|
|
va_start(ap, fmt);
|
|
xvasprintf(&name, fmt, ap);
|
|
va_end(ap);
|
|
|
|
hook = hooks_find(hooks, name);
|
|
if (hook == NULL) {
|
|
free(name);
|
|
return;
|
|
}
|
|
log_debug("running hook %s", name);
|
|
|
|
new_cmdq = cmdq_get_command(hook->cmdlist, fs, NULL, CMD_Q_NOHOOKS);
|
|
|
|
for (loop = new_cmdq; loop != NULL; loop = loop->next)
|
|
loop->hook = xstrdup(name);
|
|
free(name);
|
|
|
|
cmdq_append(c, new_cmdq);
|
|
}
|
|
|
|
void
|
|
hooks_insert(struct hooks *hooks, struct cmd_q *cmdq, struct cmd_find_state *fs,
|
|
const char *fmt, ...)
|
|
{
|
|
struct hook *hook;
|
|
va_list ap;
|
|
char *name;
|
|
struct cmd_q *new_cmdq, *loop;
|
|
|
|
if (cmdq->flags & CMD_Q_NOHOOKS)
|
|
return;
|
|
|
|
va_start(ap, fmt);
|
|
xvasprintf(&name, fmt, ap);
|
|
va_end(ap);
|
|
|
|
hook = hooks_find(hooks, name);
|
|
if (hook == NULL) {
|
|
free(name);
|
|
return;
|
|
}
|
|
log_debug("running hook %s (parent %p)", name, cmdq);
|
|
|
|
new_cmdq = cmdq_get_command(hook->cmdlist, fs, NULL, CMD_Q_NOHOOKS);
|
|
|
|
for (loop = new_cmdq; loop != NULL; loop = loop->next)
|
|
loop->hook = xstrdup(name);
|
|
free(name);
|
|
|
|
if (cmdq != NULL)
|
|
cmdq_insert_after(cmdq, new_cmdq);
|
|
else
|
|
cmdq_append(NULL, new_cmdq);
|
|
}
|