Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.60
1.60 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.59 2015/12/16 21:50:37 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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:
1.23 nicm 33: enum cmd_retval cmd_attach_session_exec(struct cmd *, struct cmd_q *);
1.1 nicm 34:
35: const struct cmd_entry cmd_attach_session_entry = {
1.56 nicm 36: .name = "attach-session",
37: .alias = "attach",
38:
39: .args = { "c:dErt:", 0, 0 },
40: .usage = "[-dEr] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
41:
1.57 nicm 42: .tflag = CMD_SESSION_WITHPANE,
43:
44: .flags = CMD_STARTSERVER,
1.56 nicm 45: .exec = cmd_attach_session_exec
1.1 nicm 46: };
47:
1.22 nicm 48: enum cmd_retval
1.55 nicm 49: cmd_attach_session(struct cmd_q *cmdq, int dflag, int rflag, const char *cflag,
50: int Eflag)
1.1 nicm 51: {
1.55 nicm 52: struct session *s = cmdq->state.tflag.s;
1.36 nicm 53: struct client *c = cmdq->client, *c_loop;
1.55 nicm 54: struct winlink *wl = cmdq->state.tflag.wl;
55: struct window_pane *wp = cmdq->state.tflag.wp;
1.27 nicm 56: const char *update;
1.55 nicm 57: char *cause, *cwd;
1.27 nicm 58: struct format_tree *ft;
1.1 nicm 59:
1.13 nicm 60: if (RB_EMPTY(&sessions)) {
1.23 nicm 61: cmdq_error(cmdq, "no sessions");
1.22 nicm 62: return (CMD_RETURN_ERROR);
1.1 nicm 63: }
1.15 nicm 64:
1.36 nicm 65: if (c == NULL)
1.22 nicm 66: return (CMD_RETURN_NORMAL);
1.36 nicm 67: if (server_client_check_nested(c)) {
1.35 nicm 68: cmdq_error(cmdq, "sessions should be nested with care, "
69: "unset $TMUX to force");
70: return (CMD_RETURN_ERROR);
71: }
1.29 nicm 72:
73: if (wl != NULL) {
74: if (wp != NULL)
75: window_set_active_pane(wp->window, wp);
76: session_set_current(s, wl);
77: }
1.1 nicm 78:
1.42 nicm 79: if (cflag != NULL) {
1.53 nicm 80: ft = format_create(cmdq, 0);
1.55 nicm 81: format_defaults(ft, c, s, wl, wp);
1.46 nicm 82: cwd = format_expand(ft, cflag);
1.42 nicm 83: format_free(ft);
84:
1.46 nicm 85: free((void *)s->cwd);
86: s->cwd = cwd;
1.42 nicm 87: }
88:
1.36 nicm 89: if (c->session != NULL) {
1.24 nicm 90: if (dflag) {
1.36 nicm 91: TAILQ_FOREACH(c_loop, &clients, entry) {
1.37 nicm 92: if (c_loop->session != s || c == c_loop)
1.4 nicm 93: continue;
1.60 ! nicm 94: server_client_detach(c_loop, MSG_DETACH);
1.4 nicm 95: }
96: }
1.11 nicm 97:
1.38 nicm 98: if (!Eflag) {
1.44 nicm 99: update = options_get_string(s->options,
1.38 nicm 100: "update-environment");
1.45 nicm 101: environ_update(update, c->environ, s->environ);
1.27 nicm 102: }
103:
1.36 nicm 104: c->session = s;
1.54 nicm 105: server_client_set_key_table(c, NULL);
1.39 nicm 106: status_timer_start(c);
1.36 nicm 107: notify_attached_session_changed(c);
1.40 nicm 108: session_update_activity(s, NULL);
1.41 nicm 109: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 110: server_redraw_client(c);
1.17 nicm 111: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.4 nicm 112: } else {
1.36 nicm 113: if (server_client_open(c, &cause) != 0) {
1.23 nicm 114: cmdq_error(cmdq, "open terminal failed: %s", cause);
1.21 nicm 115: free(cause);
1.22 nicm 116: return (CMD_RETURN_ERROR);
1.27 nicm 117: }
118:
1.24 nicm 119: if (rflag)
1.36 nicm 120: c->flags |= CLIENT_READONLY;
1.4 nicm 121:
1.28 nicm 122: if (dflag) {
1.43 nicm 123: TAILQ_FOREACH(c_loop, &clients, entry) {
124: if (c_loop->session != s || c == c_loop)
125: continue;
1.51 nicm 126: server_client_detach(c_loop, MSG_DETACH);
1.43 nicm 127: }
1.28 nicm 128: }
1.4 nicm 129:
1.36 nicm 130: if (!Eflag) {
1.44 nicm 131: update = options_get_string(s->options,
1.36 nicm 132: "update-environment");
1.45 nicm 133: environ_update(update, c->environ, s->environ);
1.36 nicm 134: }
1.8 nicm 135:
1.36 nicm 136: c->session = s;
1.54 nicm 137: server_client_set_key_table(c, NULL);
1.39 nicm 138: status_timer_start(c);
1.36 nicm 139: notify_attached_session_changed(c);
1.40 nicm 140: session_update_activity(s, NULL);
1.41 nicm 141: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 142: server_redraw_client(c);
1.17 nicm 143: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.23 nicm 144:
1.43 nicm 145: if (~c->flags & CLIENT_CONTROL)
146: proc_send(c->peer, MSG_READY, -1, NULL, 0);
1.59 nicm 147: hooks_run(c->session->hooks, c, NULL, "client-attached");
1.23 nicm 148: cmdq->client_exit = 0;
1.1 nicm 149: }
150: recalculate_sizes();
1.50 nicm 151: alerts_check_session(s);
1.9 nicm 152: server_update_socket();
1.1 nicm 153:
1.23 nicm 154: return (CMD_RETURN_NORMAL);
1.24 nicm 155: }
156:
157: enum cmd_retval
158: cmd_attach_session_exec(struct cmd *self, struct cmd_q *cmdq)
159: {
160: struct args *args = self->args;
161:
1.55 nicm 162: return (cmd_attach_session(cmdq, args_has(args, 'd'),
163: args_has(args, 'r'), args_get(args, 'c'), args_has(args, 'E')));
1.1 nicm 164: }
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