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d2fb0efcd1
couple of not very useful client hooks. This will eventually let commands be run at various points and on notifications. Joint work with Thomas Adam.
140 lines
3.1 KiB
C
140 lines
3.1 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2012 Thomas Adam <thomas@xteddy.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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struct hooks {
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RB_HEAD(hooks_tree, hook) tree;
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struct hooks *parent;
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};
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static int hooks_cmp(struct hook *, struct hook *);
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RB_PROTOTYPE(hooks_tree, hook, entry, hooks_cmp);
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RB_GENERATE(hooks_tree, hook, entry, hooks_cmp);
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struct hook *hooks_find1(struct hooks *, const char *);
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static int
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hooks_cmp(struct hook *hook1, struct hook *hook2)
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{
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return (strcmp(hook1->name, hook2->name));
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}
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struct hooks *
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hooks_create(struct hooks *parent)
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{
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struct hooks *hooks;
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hooks = xcalloc(1, sizeof *hooks);
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RB_INIT(&hooks->tree);
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hooks->parent = parent;
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return (hooks);
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}
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void
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hooks_free(struct hooks *hooks)
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{
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struct hook *hook, *hook1;
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RB_FOREACH_SAFE(hook, hooks_tree, &hooks->tree, hook1)
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hooks_remove(hooks, hook);
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free(hooks);
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}
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struct hook *
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hooks_first(struct hooks *hooks)
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{
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return (RB_MIN(hooks_tree, &hooks->tree));
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}
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struct hook *
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hooks_next(struct hook *hook)
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{
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return (RB_NEXT(hooks_tree, &hooks->tree, hook));
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}
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void
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hooks_add(struct hooks *hooks, const char *name, struct cmd_list *cmdlist)
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{
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struct hook *hook;
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if ((hook = hooks_find1(hooks, name)) != NULL)
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hooks_remove(hooks, hook);
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hook = xcalloc(1, sizeof *hook);
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hook->name = xstrdup(name);
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hook->cmdlist = cmdlist;
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hook->cmdlist->references++;
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RB_INSERT(hooks_tree, &hooks->tree, hook);
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}
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void
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hooks_remove(struct hooks *hooks, struct hook *hook)
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{
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RB_REMOVE(hooks_tree, &hooks->tree, hook);
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cmd_list_free(hook->cmdlist);
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free((char *) hook->name);
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free(hook);
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}
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struct hook *
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hooks_find1(struct hooks *hooks, const char *name)
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{
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struct hook hook;
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hook.name = name;
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return (RB_FIND(hooks_tree, &hooks->tree, &hook));
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}
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struct hook *
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hooks_find(struct hooks *hooks, const char *name)
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{
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struct hook hook0, *hook;
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hook0.name = name;
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hook = RB_FIND(hooks_tree, &hooks->tree, &hook0);
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while (hook == NULL) {
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hooks = hooks->parent;
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if (hooks == NULL)
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break;
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hook = RB_FIND(hooks_tree, &hooks->tree, &hook0);
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}
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return (hook);
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}
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void
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hooks_run(struct hooks *hooks, const char *name, struct client *c)
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{
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struct hook *hook;
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struct cmd_q *cmdq;
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hook = hooks_find(hooks, name);
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if (hook == NULL)
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return;
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log_debug("running hook %s", name);
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cmdq = cmdq_new(c);
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cmdq_run(cmdq, hook->cmdlist, NULL);
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cmdq_free(cmdq);
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}
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