Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.84
1.84 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.83 2020/04/13 14:46:04 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:
1.84 ! nicm 40: .args = { "c:dEf:rt:x", 0, 0 },
! 41: .usage = "[-dErx] [-c working-directory] [-f flags] "
! 42: CMD_TARGET_SESSION_USAGE,
1.56 nicm 43:
1.73 nicm 44: /* -t is special */
1.57 nicm 45:
46: .flags = CMD_STARTSERVER,
1.56 nicm 47: .exec = cmd_attach_session_exec
1.1 nicm 48: };
49:
1.22 nicm 50: enum cmd_retval
1.73 nicm 51: cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
1.84 ! nicm 52: int xflag, int rflag, const char *cflag, int Eflag, const char *fflag)
1.1 nicm 53: {
1.83 nicm 54: struct cmd_find_state *current = cmdq_get_current(item);
1.81 nicm 55: struct cmd_find_state target;
1.73 nicm 56: enum cmd_find_type type;
57: int flags;
1.81 nicm 58: struct client *c = cmdq_get_client(item), *c_loop;
1.73 nicm 59: struct session *s;
60: struct winlink *wl;
61: struct window_pane *wp;
1.70 nicm 62: char *cause;
1.78 nicm 63: enum msgtype msgtype;
1.1 nicm 64:
1.13 nicm 65: if (RB_EMPTY(&sessions)) {
1.64 nicm 66: cmdq_error(item, "no sessions");
1.22 nicm 67: return (CMD_RETURN_ERROR);
1.1 nicm 68: }
1.15 nicm 69:
1.36 nicm 70: if (c == NULL)
1.22 nicm 71: return (CMD_RETURN_NORMAL);
1.36 nicm 72: if (server_client_check_nested(c)) {
1.64 nicm 73: cmdq_error(item, "sessions should be nested with care, "
1.35 nicm 74: "unset $TMUX to force");
75: return (CMD_RETURN_ERROR);
76: }
1.29 nicm 77:
1.73 nicm 78: if (tflag != NULL && tflag[strcspn(tflag, ":.")] != '\0') {
79: type = CMD_FIND_PANE;
80: flags = 0;
81: } else {
82: type = CMD_FIND_SESSION;
83: flags = CMD_FIND_PREFER_UNATTACHED;
84: }
1.81 nicm 85: if (cmd_find_target(&target, item, tflag, type, flags) != 0)
1.73 nicm 86: return (CMD_RETURN_ERROR);
1.81 nicm 87: s = target.s;
88: wl = target.wl;
89: wp = target.wp;
1.73 nicm 90:
1.29 nicm 91: if (wl != NULL) {
92: if (wp != NULL)
1.77 nicm 93: window_set_active_pane(wp->window, wp, 1);
1.29 nicm 94: session_set_current(s, wl);
1.72 nicm 95: if (wp != NULL)
1.74 nicm 96: cmd_find_from_winlink_pane(current, wl, wp, 0);
1.72 nicm 97: else
1.74 nicm 98: cmd_find_from_winlink(current, wl, 0);
1.29 nicm 99: }
1.1 nicm 100:
1.42 nicm 101: if (cflag != NULL) {
1.46 nicm 102: free((void *)s->cwd);
1.70 nicm 103: s->cwd = format_single(item, cflag, c, s, wl, wp);
1.42 nicm 104: }
1.84 ! nicm 105: if (fflag)
! 106: server_client_set_flags(c, fflag);
! 107: if (rflag)
! 108: c->flags |= (CLIENT_READONLY|CLIENT_IGNORESIZE);
1.42 nicm 109:
1.75 nicm 110: c->last_session = c->session;
1.36 nicm 111: if (c->session != NULL) {
1.78 nicm 112: if (dflag || xflag) {
113: if (xflag)
114: msgtype = MSG_DETACHKILL;
115: else
116: msgtype = MSG_DETACH;
1.36 nicm 117: TAILQ_FOREACH(c_loop, &clients, entry) {
1.37 nicm 118: if (c_loop->session != s || c == c_loop)
1.4 nicm 119: continue;
1.78 nicm 120: server_client_detach(c_loop, msgtype);
1.4 nicm 121: }
122: }
1.66 nicm 123: if (!Eflag)
124: environ_update(s->options, c->environ, s->environ);
1.27 nicm 125:
1.36 nicm 126: c->session = s;
1.83 nicm 127: if (~cmdq_get_flags(item) & CMDQ_STATE_REPEAT)
1.69 nicm 128: server_client_set_key_table(c, NULL);
1.76 nicm 129: tty_update_client_offset(c);
1.39 nicm 130: status_timer_start(c);
1.65 nicm 131: notify_client("client-session-changed", c);
1.40 nicm 132: session_update_activity(s, NULL);
1.41 nicm 133: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 134: server_redraw_client(c);
1.17 nicm 135: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.79 nicm 136: s->curw->window->latest = c;
1.4 nicm 137: } else {
1.36 nicm 138: if (server_client_open(c, &cause) != 0) {
1.64 nicm 139: cmdq_error(item, "open terminal failed: %s", cause);
1.21 nicm 140: free(cause);
1.22 nicm 141: return (CMD_RETURN_ERROR);
1.27 nicm 142: }
1.4 nicm 143:
1.78 nicm 144: if (dflag || xflag) {
145: if (xflag)
146: msgtype = MSG_DETACHKILL;
147: else
148: msgtype = MSG_DETACH;
1.43 nicm 149: TAILQ_FOREACH(c_loop, &clients, entry) {
150: if (c_loop->session != s || c == c_loop)
151: continue;
1.78 nicm 152: server_client_detach(c_loop, msgtype);
1.43 nicm 153: }
1.28 nicm 154: }
1.66 nicm 155: if (!Eflag)
156: environ_update(s->options, c->environ, s->environ);
1.8 nicm 157:
1.36 nicm 158: c->session = s;
1.54 nicm 159: server_client_set_key_table(c, NULL);
1.76 nicm 160: tty_update_client_offset(c);
1.39 nicm 161: status_timer_start(c);
1.65 nicm 162: notify_client("client-session-changed", c);
1.40 nicm 163: session_update_activity(s, NULL);
1.41 nicm 164: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 165: server_redraw_client(c);
1.17 nicm 166: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.79 nicm 167: s->curw->window->latest = c;
1.23 nicm 168:
1.43 nicm 169: if (~c->flags & CLIENT_CONTROL)
170: proc_send(c->peer, MSG_READY, -1, NULL, 0);
1.65 nicm 171: notify_client("client-attached", c);
1.63 nicm 172: c->flags |= CLIENT_ATTACHED;
1.1 nicm 173: }
174: recalculate_sizes();
1.50 nicm 175: alerts_check_session(s);
1.9 nicm 176: server_update_socket();
1.1 nicm 177:
1.23 nicm 178: return (CMD_RETURN_NORMAL);
1.24 nicm 179: }
180:
1.62 nicm 181: static enum cmd_retval
1.64 nicm 182: cmd_attach_session_exec(struct cmd *self, struct cmdq_item *item)
1.24 nicm 183: {
1.80 nicm 184: struct args *args = cmd_get_args(self);
1.24 nicm 185:
1.73 nicm 186: return (cmd_attach_session(item, args_get(args, 't'),
1.78 nicm 187: args_has(args, 'd'), args_has(args, 'x'), args_has(args, 'r'),
1.84 ! nicm 188: args_get(args, 'c'), args_has(args, 'E'), args_get(args, 'f')));
1.1 nicm 189: }
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