Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.78
1.78 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.77 2019/04/17 14:37:48 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:
1.78 ! nicm 40: .args = { "c:dErt:x", 0, 0 },
! 41: .usage = "[-dErx] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
1.56 nicm 42:
1.73 nicm 43: /* -t is special */
1.57 nicm 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
1.73 nicm 50: cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
1.78 ! nicm 51: int xflag, int rflag, const char *cflag, int Eflag)
1.1 nicm 52: {
1.72 nicm 53: struct cmd_find_state *current = &item->shared->current;
1.73 nicm 54: enum cmd_find_type type;
55: int flags;
1.64 nicm 56: struct client *c = item->client, *c_loop;
1.73 nicm 57: struct session *s;
58: struct winlink *wl;
59: struct window_pane *wp;
1.70 nicm 60: char *cause;
1.78 ! nicm 61: enum msgtype msgtype;
1.1 nicm 62:
1.13 nicm 63: if (RB_EMPTY(&sessions)) {
1.64 nicm 64: cmdq_error(item, "no sessions");
1.22 nicm 65: return (CMD_RETURN_ERROR);
1.1 nicm 66: }
1.15 nicm 67:
1.36 nicm 68: if (c == NULL)
1.22 nicm 69: return (CMD_RETURN_NORMAL);
1.36 nicm 70: if (server_client_check_nested(c)) {
1.64 nicm 71: cmdq_error(item, "sessions should be nested with care, "
1.35 nicm 72: "unset $TMUX to force");
73: return (CMD_RETURN_ERROR);
74: }
1.29 nicm 75:
1.73 nicm 76: if (tflag != NULL && tflag[strcspn(tflag, ":.")] != '\0') {
77: type = CMD_FIND_PANE;
78: flags = 0;
79: } else {
80: type = CMD_FIND_SESSION;
81: flags = CMD_FIND_PREFER_UNATTACHED;
82: }
83: if (cmd_find_target(&item->target, item, tflag, type, flags) != 0)
84: return (CMD_RETURN_ERROR);
85: s = item->target.s;
86: wl = item->target.wl;
87: wp = item->target.wp;
88:
1.29 nicm 89: if (wl != NULL) {
90: if (wp != NULL)
1.77 nicm 91: window_set_active_pane(wp->window, wp, 1);
1.29 nicm 92: session_set_current(s, wl);
1.72 nicm 93: if (wp != NULL)
1.74 nicm 94: cmd_find_from_winlink_pane(current, wl, wp, 0);
1.72 nicm 95: else
1.74 nicm 96: cmd_find_from_winlink(current, wl, 0);
1.29 nicm 97: }
1.1 nicm 98:
1.42 nicm 99: if (cflag != NULL) {
1.46 nicm 100: free((void *)s->cwd);
1.70 nicm 101: s->cwd = format_single(item, cflag, c, s, wl, wp);
1.42 nicm 102: }
103:
1.75 nicm 104: c->last_session = c->session;
1.36 nicm 105: if (c->session != NULL) {
1.78 ! nicm 106: if (dflag || xflag) {
! 107: if (xflag)
! 108: msgtype = MSG_DETACHKILL;
! 109: else
! 110: msgtype = MSG_DETACH;
1.36 nicm 111: TAILQ_FOREACH(c_loop, &clients, entry) {
1.37 nicm 112: if (c_loop->session != s || c == c_loop)
1.4 nicm 113: continue;
1.78 ! nicm 114: server_client_detach(c_loop, msgtype);
1.4 nicm 115: }
116: }
1.66 nicm 117: if (!Eflag)
118: environ_update(s->options, c->environ, s->environ);
1.27 nicm 119:
1.36 nicm 120: c->session = s;
1.71 nicm 121: if (~item->shared->flags & CMDQ_SHARED_REPEAT)
1.69 nicm 122: server_client_set_key_table(c, NULL);
1.76 nicm 123: tty_update_client_offset(c);
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;
1.4 nicm 130: } else {
1.36 nicm 131: if (server_client_open(c, &cause) != 0) {
1.64 nicm 132: cmdq_error(item, "open terminal failed: %s", cause);
1.21 nicm 133: free(cause);
1.22 nicm 134: return (CMD_RETURN_ERROR);
1.27 nicm 135: }
1.24 nicm 136: if (rflag)
1.36 nicm 137: c->flags |= CLIENT_READONLY;
1.4 nicm 138:
1.78 ! nicm 139: if (dflag || xflag) {
! 140: if (xflag)
! 141: msgtype = MSG_DETACHKILL;
! 142: else
! 143: msgtype = MSG_DETACH;
1.43 nicm 144: TAILQ_FOREACH(c_loop, &clients, entry) {
145: if (c_loop->session != s || c == c_loop)
146: continue;
1.78 ! nicm 147: server_client_detach(c_loop, msgtype);
1.43 nicm 148: }
1.28 nicm 149: }
1.66 nicm 150: if (!Eflag)
151: environ_update(s->options, c->environ, s->environ);
1.8 nicm 152:
1.36 nicm 153: c->session = s;
1.54 nicm 154: server_client_set_key_table(c, NULL);
1.76 nicm 155: tty_update_client_offset(c);
1.39 nicm 156: status_timer_start(c);
1.65 nicm 157: notify_client("client-session-changed", c);
1.40 nicm 158: session_update_activity(s, NULL);
1.41 nicm 159: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 160: server_redraw_client(c);
1.17 nicm 161: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.23 nicm 162:
1.43 nicm 163: if (~c->flags & CLIENT_CONTROL)
164: proc_send(c->peer, MSG_READY, -1, NULL, 0);
1.65 nicm 165: notify_client("client-attached", c);
1.63 nicm 166: c->flags |= CLIENT_ATTACHED;
1.1 nicm 167: }
168: recalculate_sizes();
1.50 nicm 169: alerts_check_session(s);
1.9 nicm 170: server_update_socket();
1.1 nicm 171:
1.23 nicm 172: return (CMD_RETURN_NORMAL);
1.24 nicm 173: }
174:
1.62 nicm 175: static enum cmd_retval
1.64 nicm 176: cmd_attach_session_exec(struct cmd *self, struct cmdq_item *item)
1.24 nicm 177: {
178: struct args *args = self->args;
179:
1.73 nicm 180: return (cmd_attach_session(item, args_get(args, 't'),
1.78 ! nicm 181: args_has(args, 'd'), args_has(args, 'x'), args_has(args, 'r'),
! 182: args_get(args, 'c'), args_has(args, 'E')));
1.1 nicm 183: }
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