Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.56
1.56 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.55 2015/12/13 14:32:38 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:
! 42: .flags = CMD_STARTSERVER|CMD_SESSION_T|CMD_PANE_T|CMD_PREFERUNATTACHED,
! 43: .exec = cmd_attach_session_exec
1.1 nicm 44: };
45:
1.22 nicm 46: enum cmd_retval
1.55 nicm 47: cmd_attach_session(struct cmd_q *cmdq, int dflag, int rflag, const char *cflag,
48: int Eflag)
1.1 nicm 49: {
1.55 nicm 50: struct session *s = cmdq->state.tflag.s;
1.36 nicm 51: struct client *c = cmdq->client, *c_loop;
1.55 nicm 52: struct winlink *wl = cmdq->state.tflag.wl;
53: struct window_pane *wp = cmdq->state.tflag.wp;
1.27 nicm 54: const char *update;
1.55 nicm 55: char *cause, *cwd;
1.27 nicm 56: struct format_tree *ft;
1.1 nicm 57:
1.13 nicm 58: if (RB_EMPTY(&sessions)) {
1.23 nicm 59: cmdq_error(cmdq, "no sessions");
1.22 nicm 60: return (CMD_RETURN_ERROR);
1.1 nicm 61: }
1.15 nicm 62:
1.36 nicm 63: if (c == NULL)
1.22 nicm 64: return (CMD_RETURN_NORMAL);
1.36 nicm 65: if (server_client_check_nested(c)) {
1.35 nicm 66: cmdq_error(cmdq, "sessions should be nested with care, "
67: "unset $TMUX to force");
68: return (CMD_RETURN_ERROR);
69: }
1.29 nicm 70:
71: if (wl != NULL) {
72: if (wp != NULL)
73: window_set_active_pane(wp->window, wp);
74: session_set_current(s, wl);
75: }
1.1 nicm 76:
1.42 nicm 77: if (cflag != NULL) {
1.53 nicm 78: ft = format_create(cmdq, 0);
1.55 nicm 79: format_defaults(ft, c, s, wl, wp);
1.46 nicm 80: cwd = format_expand(ft, cflag);
1.42 nicm 81: format_free(ft);
82:
1.46 nicm 83: free((void *)s->cwd);
84: s->cwd = cwd;
1.42 nicm 85: }
86:
1.36 nicm 87: if (c->session != NULL) {
1.24 nicm 88: if (dflag) {
1.36 nicm 89: TAILQ_FOREACH(c_loop, &clients, entry) {
1.37 nicm 90: if (c_loop->session != s || c == c_loop)
1.4 nicm 91: continue;
1.51 nicm 92: server_client_detach(c, MSG_DETACH);
1.4 nicm 93: }
94: }
1.11 nicm 95:
1.38 nicm 96: if (!Eflag) {
1.44 nicm 97: update = options_get_string(s->options,
1.38 nicm 98: "update-environment");
1.45 nicm 99: environ_update(update, c->environ, s->environ);
1.27 nicm 100: }
101:
1.36 nicm 102: c->session = s;
1.54 nicm 103: server_client_set_key_table(c, NULL);
1.39 nicm 104: status_timer_start(c);
1.36 nicm 105: notify_attached_session_changed(c);
1.40 nicm 106: session_update_activity(s, NULL);
1.41 nicm 107: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 108: server_redraw_client(c);
1.17 nicm 109: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.4 nicm 110: } else {
1.36 nicm 111: if (server_client_open(c, &cause) != 0) {
1.23 nicm 112: cmdq_error(cmdq, "open terminal failed: %s", cause);
1.21 nicm 113: free(cause);
1.22 nicm 114: return (CMD_RETURN_ERROR);
1.27 nicm 115: }
116:
1.24 nicm 117: if (rflag)
1.36 nicm 118: c->flags |= CLIENT_READONLY;
1.4 nicm 119:
1.28 nicm 120: if (dflag) {
1.43 nicm 121: TAILQ_FOREACH(c_loop, &clients, entry) {
122: if (c_loop->session != s || c == c_loop)
123: continue;
1.51 nicm 124: server_client_detach(c_loop, MSG_DETACH);
1.43 nicm 125: }
1.28 nicm 126: }
1.4 nicm 127:
1.36 nicm 128: if (!Eflag) {
1.44 nicm 129: update = options_get_string(s->options,
1.36 nicm 130: "update-environment");
1.45 nicm 131: environ_update(update, c->environ, s->environ);
1.36 nicm 132: }
1.8 nicm 133:
1.36 nicm 134: c->session = s;
1.54 nicm 135: server_client_set_key_table(c, NULL);
1.39 nicm 136: status_timer_start(c);
1.36 nicm 137: notify_attached_session_changed(c);
1.40 nicm 138: session_update_activity(s, NULL);
1.41 nicm 139: gettimeofday(&s->last_attached_time, NULL);
1.36 nicm 140: server_redraw_client(c);
1.17 nicm 141: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.23 nicm 142:
1.43 nicm 143: if (~c->flags & CLIENT_CONTROL)
144: proc_send(c->peer, MSG_READY, -1, NULL, 0);
1.51 nicm 145: hooks_run(c->session->hooks, "client-attached", c);
1.23 nicm 146: cmdq->client_exit = 0;
1.1 nicm 147: }
148: recalculate_sizes();
1.50 nicm 149: alerts_check_session(s);
1.9 nicm 150: server_update_socket();
1.1 nicm 151:
1.23 nicm 152: return (CMD_RETURN_NORMAL);
1.24 nicm 153: }
154:
155: enum cmd_retval
156: cmd_attach_session_exec(struct cmd *self, struct cmd_q *cmdq)
157: {
158: struct args *args = self->args;
159:
1.55 nicm 160: return (cmd_attach_session(cmdq, args_has(args, 'd'),
161: args_has(args, 'r'), args_get(args, 'c'), args_has(args, 'E')));
1.1 nicm 162: }
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