Annotation of src/usr.bin/tmux/cmd-attach-session.c, Revision 1.21
1.21 ! nicm 1: /* $OpenBSD: cmd-attach-session.c,v 1.20 2012/05/22 10:56:48 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:
1.21 ! nicm 21: #include <stdlib.h>
! 22:
1.1 nicm 23: #include "tmux.h"
24:
25: /*
26: * Attach existing session to the current terminal.
27: */
28:
29: int cmd_attach_session_exec(struct cmd *, struct cmd_ctx *);
30:
31: const struct cmd_entry cmd_attach_session_entry = {
32: "attach-session", "attach",
1.15 nicm 33: "drt:", 0, 0,
1.12 nicm 34: "[-dr] " CMD_TARGET_SESSION_USAGE,
1.15 nicm 35: CMD_CANTNEST|CMD_STARTSERVER|CMD_SENDENVIRON,
36: NULL,
37: NULL,
38: cmd_attach_session_exec
1.1 nicm 39: };
40:
41: int
42: cmd_attach_session_exec(struct cmd *self, struct cmd_ctx *ctx)
43: {
1.15 nicm 44: struct args *args = self->args;
45: struct session *s;
46: struct client *c;
47: const char *update;
1.19 nicm 48: char *cause;
1.15 nicm 49: u_int i;
1.1 nicm 50:
1.13 nicm 51: if (RB_EMPTY(&sessions)) {
1.1 nicm 52: ctx->error(ctx, "no sessions");
53: return (-1);
54: }
1.15 nicm 55:
1.16 nicm 56: if ((s = cmd_find_session(ctx, args_get(args, 't'), 1)) == NULL)
1.1 nicm 57: return (-1);
1.5 nicm 58:
59: if (ctx->cmdclient == NULL && ctx->curclient == NULL)
60: return (0);
1.1 nicm 61:
1.4 nicm 62: if (ctx->cmdclient == NULL) {
1.15 nicm 63: if (args_has(self->args, 'd')) {
1.11 nicm 64: /*
1.4 nicm 65: * Can't use server_write_session in case attaching to
66: * the same session as currently attached to.
67: */
68: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
69: c = ARRAY_ITEM(&clients, i);
70: if (c == NULL || c->session != s)
71: continue;
72: if (c == ctx->curclient)
73: continue;
74: server_write_client(c, MSG_DETACH, NULL, 0);
75: }
76: }
1.11 nicm 77:
1.4 nicm 78: ctx->curclient->session = s;
1.18 nicm 79: notify_attached_session_changed(ctx->curclient);
1.14 nicm 80: session_update_activity(s);
1.4 nicm 81: server_redraw_client(ctx->curclient);
1.17 nicm 82: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.4 nicm 83: } else {
1.19 nicm 84: if (server_client_open(ctx->cmdclient, s, &cause) != 0) {
85: ctx->error(ctx, "open terminal failed: %s", cause);
1.21 ! nicm 86: free(cause);
1.4 nicm 87: return (-1);
88: }
1.12 nicm 89:
1.15 nicm 90: if (args_has(self->args, 'r'))
1.12 nicm 91: ctx->cmdclient->flags |= CLIENT_READONLY;
1.4 nicm 92:
1.15 nicm 93: if (args_has(self->args, 'd'))
1.4 nicm 94: server_write_session(s, MSG_DETACH, NULL, 0);
95:
96: ctx->cmdclient->session = s;
1.18 nicm 97: notify_attached_session_changed(ctx->cmdclient);
1.14 nicm 98: session_update_activity(s);
1.20 nicm 99: server_write_ready(ctx->cmdclient);
1.8 nicm 100:
101: update = options_get_string(&s->options, "update-environment");
102: environ_update(update, &ctx->cmdclient->environ, &s->environ);
103:
1.4 nicm 104: server_redraw_client(ctx->cmdclient);
1.17 nicm 105: s->curw->flags &= ~WINLINK_ALERTFLAGS;
1.1 nicm 106: }
107: recalculate_sizes();
1.9 nicm 108: server_update_socket();
1.1 nicm 109:
1.4 nicm 110: return (1); /* 1 means don't tell command client to exit */
1.1 nicm 111: }