Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.65
1.65 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.64 2016/10/16 19:04:05 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;
1.27 nicm 57: const char *update;
1.55 nicm 58: char *cause, *cwd;
1.27 nicm 59: struct format_tree *ft;
1.1 nicm 60:
1.13 nicm 61: if (RB_EMPTY(&sessions)) {
1.64 nicm 62: cmdq_error(item, "no sessions");
1.22 nicm 63: return (CMD_RETURN_ERROR);
1.1 nicm 64: }
1.15 nicm 65:
1.36 nicm 66: if (c == NULL)
1.22 nicm 67: return (CMD_RETURN_NORMAL);
1.36 nicm 68: if (server_client_check_nested(c)) {
1.64 nicm 69: cmdq_error(item, "sessions should be nested with care, "
1.35 nicm 70: "unset $TMUX to force");
71: return (CMD_RETURN_ERROR);
72: }
1.29 nicm 73:
74: if (wl != NULL) {
75: if (wp != NULL)
76: window_set_active_pane(wp->window, wp);
77: session_set_current(s, wl);
78: }
1.1 nicm 79:
1.42 nicm 80: if (cflag != NULL) {
1.64 nicm 81: ft = format_create(item, 0);
1.55 nicm 82: format_defaults(ft, c, s, wl, wp);
1.46 nicm 83: cwd = format_expand(ft, cflag);
1.42 nicm 84: format_free(ft);
85:
1.46 nicm 86: free((void *)s->cwd);
87: s->cwd = cwd;
1.42 nicm 88: }
89:
1.36 nicm 90: if (c->session != NULL) {
1.24 nicm 91: if (dflag) {
1.36 nicm 92: TAILQ_FOREACH(c_loop, &clients, entry) {
1.37 nicm 93: if (c_loop->session != s || c == c_loop)
1.4 nicm 94: continue;
1.60 nicm 95: server_client_detach(c_loop, MSG_DETACH);
1.4 nicm 96: }
97: }
1.11 nicm 98:
1.38 nicm 99: if (!Eflag) {
1.44 nicm 100: update = options_get_string(s->options,
1.38 nicm 101: "update-environment");
1.45 nicm 102: environ_update(update, c->environ, s->environ);
1.27 nicm 103: }
104:
1.36 nicm 105: c->session = s;
1.54 nicm 106: server_client_set_key_table(c, NULL);
1.39 nicm 107: status_timer_start(c);
1.65 ! nicm 108: notify_client("client-session-changed", c);
1.40 nicm 109: session_update_activity(s, NULL);
1.41 nicm 110: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 111: server_redraw_client(c);
1.17 nicm 112: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.4 nicm 113: } else {
1.36 nicm 114: if (server_client_open(c, &cause) != 0) {
1.64 nicm 115: cmdq_error(item, "open terminal failed: %s", cause);
1.21 nicm 116: free(cause);
1.22 nicm 117: return (CMD_RETURN_ERROR);
1.27 nicm 118: }
119:
1.24 nicm 120: if (rflag)
1.36 nicm 121: c->flags |= CLIENT_READONLY;
1.4 nicm 122:
1.28 nicm 123: if (dflag) {
1.43 nicm 124: TAILQ_FOREACH(c_loop, &clients, entry) {
125: if (c_loop->session != s || c == c_loop)
126: continue;
1.51 nicm 127: server_client_detach(c_loop, MSG_DETACH);
1.43 nicm 128: }
1.28 nicm 129: }
1.4 nicm 130:
1.36 nicm 131: if (!Eflag) {
1.44 nicm 132: update = options_get_string(s->options,
1.36 nicm 133: "update-environment");
1.45 nicm 134: environ_update(update, c->environ, s->environ);
1.36 nicm 135: }
1.8 nicm 136:
1.36 nicm 137: c->session = s;
1.54 nicm 138: server_client_set_key_table(c, NULL);
1.39 nicm 139: status_timer_start(c);
1.65 ! nicm 140: notify_client("client-session-changed", c);
1.40 nicm 141: session_update_activity(s, NULL);
1.41 nicm 142: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 143: server_redraw_client(c);
1.17 nicm 144: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.23 nicm 145:
1.43 nicm 146: if (~c->flags & CLIENT_CONTROL)
147: proc_send(c->peer, MSG_READY, -1, NULL, 0);
1.65 ! nicm 148: notify_client("client-attached", c);
1.63 nicm 149: c->flags |= CLIENT_ATTACHED;
1.1 nicm 150: }
151: recalculate_sizes();
1.50 nicm 152: alerts_check_session(s);
1.9 nicm 153: server_update_socket();
1.1 nicm 154:
1.23 nicm 155: return (CMD_RETURN_NORMAL);
1.24 nicm 156: }
157:
1.62 nicm 158: static enum cmd_retval
1.64 nicm 159: cmd_attach_session_exec(struct cmd *self, struct cmdq_item *item)
1.24 nicm 160: {
161: struct args *args = self->args;
162:
1.64 nicm 163: return (cmd_attach_session(item, args_has(args, 'd'),
1.55 nicm 164: args_has(args, 'r'), args_get(args, 'c'), args_has(args, 'E')));
1.1 nicm 165: }
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