Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.71
1.71 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.70 2017/03/08 13:36:12 nicm Exp $ */
1.1 nicm 2:
3: /*
1.61 nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
1.27 nicm 21: #include <errno.h>
22: #include <fcntl.h>
1.21 nicm 23: #include <stdlib.h>
1.27 nicm 24: #include <string.h>
25: #include <unistd.h>
1.21 nicm 26:
1.1 nicm 27: #include "tmux.h"
28:
29: /*
30: * Attach existing session to the current terminal.
31: */
32:
1.64 nicm 33: static enum cmd_retval cmd_attach_session_exec(struct cmd *,
34: struct cmdq_item *);
1.1 nicm 35:
36: const struct cmd_entry cmd_attach_session_entry = {
1.56 nicm 37: .name = "attach-session",
38: .alias = "attach",
39:
40: .args = { "c:dErt:", 0, 0 },
41: .usage = "[-dEr] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
42:
1.57 nicm 43: .tflag = CMD_SESSION_WITHPANE,
44:
45: .flags = CMD_STARTSERVER,
1.56 nicm 46: .exec = cmd_attach_session_exec
1.1 nicm 47: };
48:
1.22 nicm 49: enum cmd_retval
1.64 nicm 50: cmd_attach_session(struct cmdq_item *item, int dflag, int rflag,
51: const char *cflag, int Eflag)
1.1 nicm 52: {
1.64 nicm 53: struct session *s = item->state.tflag.s;
54: struct client *c = item->client, *c_loop;
55: struct winlink *wl = item->state.tflag.wl;
56: struct window_pane *wp = item->state.tflag.wp;
1.70 nicm 57: char *cause;
1.1 nicm 58:
1.13 nicm 59: if (RB_EMPTY(&sessions)) {
1.64 nicm 60: cmdq_error(item, "no sessions");
1.22 nicm 61: return (CMD_RETURN_ERROR);
1.1 nicm 62: }
1.15 nicm 63:
1.36 nicm 64: if (c == NULL)
1.22 nicm 65: return (CMD_RETURN_NORMAL);
1.36 nicm 66: if (server_client_check_nested(c)) {
1.64 nicm 67: cmdq_error(item, "sessions should be nested with care, "
1.35 nicm 68: "unset $TMUX to force");
69: return (CMD_RETURN_ERROR);
70: }
1.29 nicm 71:
72: if (wl != NULL) {
73: if (wp != NULL)
74: window_set_active_pane(wp->window, wp);
75: session_set_current(s, wl);
76: }
1.1 nicm 77:
1.42 nicm 78: if (cflag != NULL) {
1.46 nicm 79: free((void *)s->cwd);
1.70 nicm 80: s->cwd = format_single(item, cflag, c, s, wl, wp);
1.42 nicm 81: }
82:
1.36 nicm 83: if (c->session != NULL) {
1.24 nicm 84: if (dflag) {
1.36 nicm 85: TAILQ_FOREACH(c_loop, &clients, entry) {
1.37 nicm 86: if (c_loop->session != s || c == c_loop)
1.4 nicm 87: continue;
1.60 nicm 88: server_client_detach(c_loop, MSG_DETACH);
1.4 nicm 89: }
90: }
1.66 nicm 91: if (!Eflag)
92: environ_update(s->options, c->environ, s->environ);
1.27 nicm 93:
1.36 nicm 94: c->session = s;
1.71 ! nicm 95: if (~item->shared->flags & CMDQ_SHARED_REPEAT)
1.69 nicm 96: server_client_set_key_table(c, NULL);
1.39 nicm 97: status_timer_start(c);
1.65 nicm 98: notify_client("client-session-changed", c);
1.40 nicm 99: session_update_activity(s, NULL);
1.41 nicm 100: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 101: server_redraw_client(c);
1.17 nicm 102: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.4 nicm 103: } else {
1.36 nicm 104: if (server_client_open(c, &cause) != 0) {
1.64 nicm 105: cmdq_error(item, "open terminal failed: %s", cause);
1.21 nicm 106: free(cause);
1.22 nicm 107: return (CMD_RETURN_ERROR);
1.27 nicm 108: }
1.24 nicm 109: if (rflag)
1.36 nicm 110: c->flags |= CLIENT_READONLY;
1.4 nicm 111:
1.28 nicm 112: if (dflag) {
1.43 nicm 113: TAILQ_FOREACH(c_loop, &clients, entry) {
114: if (c_loop->session != s || c == c_loop)
115: continue;
1.51 nicm 116: server_client_detach(c_loop, MSG_DETACH);
1.43 nicm 117: }
1.28 nicm 118: }
1.66 nicm 119: if (!Eflag)
120: environ_update(s->options, c->environ, s->environ);
1.8 nicm 121:
1.36 nicm 122: c->session = s;
1.54 nicm 123: server_client_set_key_table(c, NULL);
1.39 nicm 124: status_timer_start(c);
1.65 nicm 125: notify_client("client-session-changed", c);
1.40 nicm 126: session_update_activity(s, NULL);
1.41 nicm 127: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 128: server_redraw_client(c);
1.17 nicm 129: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.23 nicm 130:
1.43 nicm 131: if (~c->flags & CLIENT_CONTROL)
132: proc_send(c->peer, MSG_READY, -1, NULL, 0);
1.65 nicm 133: notify_client("client-attached", c);
1.63 nicm 134: c->flags |= CLIENT_ATTACHED;
1.1 nicm 135: }
136: recalculate_sizes();
1.50 nicm 137: alerts_check_session(s);
1.9 nicm 138: server_update_socket();
1.1 nicm 139:
1.23 nicm 140: return (CMD_RETURN_NORMAL);
1.24 nicm 141: }
142:
1.62 nicm 143: static enum cmd_retval
1.64 nicm 144: cmd_attach_session_exec(struct cmd *self, struct cmdq_item *item)
1.24 nicm 145: {
146: struct args *args = self->args;
147:
1.64 nicm 148: return (cmd_attach_session(item, args_has(args, 'd'),
1.55 nicm 149: args_has(args, 'r'), args_get(args, 'c'), args_has(args, 'E')));
1.1 nicm 150: }
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