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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.
108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
/* $Id$ */
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/*
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* Copyright (c) 2008 Tiago Cunha <me@tiagocunha.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 "tmux.h"
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/*
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* Sources a configuration file.
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*/
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enum cmd_retval cmd_source_file_exec(struct cmd *, struct cmd_q *);
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void cmd_source_file_show(struct cmd_q *);
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void cmd_source_file_done(struct cmd_q *);
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const struct cmd_entry cmd_source_file_entry = {
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"source-file", "source",
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"", 1, 1,
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"path",
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0,
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NULL,
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NULL,
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cmd_source_file_exec
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};
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enum cmd_retval
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cmd_source_file_exec(struct cmd *self, struct cmd_q *cmdq)
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{
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struct args *args = self->args;
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struct cmd_q *cmdq1;
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char *cause;
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cmdq1 = cmdq_new(NULL);
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cmdq1->emptyfn = cmd_source_file_done;
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cmdq1->data = cmdq;
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switch (load_cfg(args->argv[0], cmdq1, &cause)) {
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case -1:
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if (cfg_references == 0) {
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cmdq_free(cmdq1);
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cmdq_error(cmdq, "%s", cause);
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free(cause);
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return (CMD_RETURN_ERROR);
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}
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ARRAY_ADD(&cfg_causes, cause);
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/* FALLTHROUGH */
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case 0:
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if (cfg_references == 0)
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cmd_source_file_show(cmdq);
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cmdq_free(cmdq1);
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return (CMD_RETURN_NORMAL);
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}
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cmdq->references++;
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cfg_references++;
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cmdq_continue(cmdq1);
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return (CMD_RETURN_WAIT);
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}
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void
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cmd_source_file_show(struct cmd_q *cmdq)
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{
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u_int i;
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char *cause;
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for (i = 0; i < ARRAY_LENGTH(&cfg_causes); i++) {
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cause = ARRAY_ITEM(&cfg_causes, i);
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cmdq_print(cmdq, "%s", cause);
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free(cause);
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}
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ARRAY_FREE(&cfg_causes);
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}
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void
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cmd_source_file_done(struct cmd_q *cmdq1)
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{
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struct cmd_q *cmdq = cmdq1->data;
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cmdq_free(cmdq1);
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cfg_references--;
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if (cmdq_free(cmdq) || cfg_references != 0)
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return;
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cmd_source_file_show(cmdq);
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cmdq_continue(cmdq);
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}
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