Annotation of src/usr.bin/tmux/cmd-new-session.c, Revision 1.5
1.5 ! nicm 1: /* $OpenBSD: cmd-new-session.c,v 1.4 2009/07/17 15:03:11 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:
21: #include "tmux.h"
22:
23: /*
24: * Create a new session and attach to the current terminal unless -d is given.
25: */
26:
27: int cmd_new_session_parse(struct cmd *, int, char **, char **);
28: int cmd_new_session_exec(struct cmd *, struct cmd_ctx *);
29: void cmd_new_session_send(struct cmd *, struct buffer *);
30: void cmd_new_session_recv(struct cmd *, struct buffer *);
31: void cmd_new_session_free(struct cmd *);
32: void cmd_new_session_init(struct cmd *, int);
33: size_t cmd_new_session_print(struct cmd *, char *, size_t);
34:
35: struct cmd_new_session_data {
36: char *newname;
37: char *winname;
38: char *cmd;
39: int flag_detached;
40: };
41:
42: const struct cmd_entry cmd_new_session_entry = {
43: "new-session", "new",
44: "[-d] [-n window-name] [-s session-name] [command]",
1.3 nicm 45: CMD_STARTSERVER|CMD_CANTNEST, 0,
1.1 nicm 46: cmd_new_session_init,
47: cmd_new_session_parse,
48: cmd_new_session_exec,
49: cmd_new_session_send,
50: cmd_new_session_recv,
51: cmd_new_session_free,
52: cmd_new_session_print
53: };
54:
55: void
56: cmd_new_session_init(struct cmd *self, unused int arg)
57: {
58: struct cmd_new_session_data *data;
59:
60: self->data = data = xmalloc(sizeof *data);
61: data->flag_detached = 0;
62: data->newname = NULL;
63: data->winname = NULL;
64: data->cmd = NULL;
65: }
66:
67: int
68: cmd_new_session_parse(struct cmd *self, int argc, char **argv, char **cause)
69: {
70: struct cmd_new_session_data *data;
71: int opt;
72:
73: self->entry->init(self, 0);
74: data = self->data;
75:
76: while ((opt = getopt(argc, argv, "ds:n:")) != -1) {
77: switch (opt) {
78: case 'd':
79: data->flag_detached = 1;
80: break;
81: case 's':
82: if (data->newname == NULL)
83: data->newname = xstrdup(optarg);
84: break;
85: case 'n':
86: if (data->winname == NULL)
87: data->winname = xstrdup(optarg);
88: break;
89: default:
90: goto usage;
91: }
92: }
93: argc -= optind;
94: argv += optind;
95: if (argc != 0 && argc != 1)
96: goto usage;
97:
98: if (argc == 1)
99: data->cmd = xstrdup(argv[0]);
100:
101: return (0);
102:
103: usage:
104: xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
105:
106: self->entry->free(self);
107: return (-1);
108: }
109:
110: int
111: cmd_new_session_exec(struct cmd *self, struct cmd_ctx *ctx)
112: {
113: struct cmd_new_session_data *data = self->data;
114: struct session *s;
1.5 ! nicm 115: struct options *oo;
1.1 nicm 116: char *cmd, *cwd, *cause;
117: u_int sx, sy;
118:
1.4 nicm 119: if (data->newname != NULL && session_find(data->newname) != NULL) {
120: ctx->error(ctx, "duplicate session: %s", data->newname);
121: return (-1);
122: }
1.1 nicm 123:
1.4 nicm 124: /*
125: * There are two cases:
126: *
127: * 1. If cmdclient is non-NULL, new-session has been called from the
128: * command-line - cmdclient is to become a new attached, interactive
129: * client. Unless -d is given, the terminal must be opened and then
130: * the client sent MSG_READY.
131: *
132: * 2. If cmdclient is NULL, new-session has been called from an
133: * existing client (such as a key binding).
134: *
135: * In both cases, a new additional session needs to be created and
136: * (unless -d) set as the current session for the client.
137: */
138:
139: /* Open the terminal if necessary. */
140: if (!data->flag_detached && ctx->cmdclient != NULL) {
141: if (!(ctx->cmdclient->flags & CLIENT_TERMINAL)) {
142: ctx->error(ctx, "not a terminal");
1.1 nicm 143: return (-1);
144: }
1.4 nicm 145:
146: if (tty_open(&ctx->cmdclient->tty, &cause) != 0) {
147: ctx->error(ctx, "open terminal failed: %s", cause);
148: xfree(cause);
1.1 nicm 149: return (-1);
150: }
151: }
152:
1.5 ! nicm 153: /*
! 154: * If the called from inside, use the source session for the default
! 155: * path and command.
! 156: */
! 157: oo = &global_s_options;
! 158: if (ctx->cmdclient == NULL)
! 159: oo = &ctx->curclient->session->options;
! 160:
1.4 nicm 161: /* Find new session size and options. */
162: if (data->flag_detached) {
163: sx = 80;
164: sy = 25;
165: } else {
166: if (ctx->cmdclient != NULL) {
167: sx = ctx->cmdclient->tty.sx;
168: sy = ctx->cmdclient->tty.sy;
169: } else {
170: sx = ctx->curclient->tty.sx;
171: sy = ctx->curclient->tty.sy;
172: }
1.1 nicm 173: }
1.5 ! nicm 174: if (sy > 0 && options_get_number(oo, "status"))
1.4 nicm 175: sy--;
176: if (sx == 0)
177: sx = 1;
178: if (sy == 0)
179: sy = 1;
180: if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
181: cwd = ctx->cmdclient->cwd;
182: else
1.5 ! nicm 183: cwd = options_get_string(oo, "default-path");
1.4 nicm 184: if (data->cmd != NULL)
185: cmd = data->cmd;
1.1 nicm 186: else
1.5 ! nicm 187: cmd = options_get_string(oo, "default-command");
1.1 nicm 188:
1.4 nicm 189: /* Create the new session. */
1.1 nicm 190: s = session_create(data->newname, cmd, cwd, sx, sy, &cause);
191: if (s == NULL) {
192: ctx->error(ctx, "create session failed: %s", cause);
193: xfree(cause);
194: return (-1);
195: }
1.4 nicm 196:
1.1 nicm 197: if (data->winname != NULL) {
198: xfree(s->curw->window->name);
199: s->curw->window->name = xstrdup(data->winname);
200: options_set_number(
201: &s->curw->window->options, "automatic-rename", 0);
202: }
203:
1.4 nicm 204: /*
205: * If a command client exists, it is either taking this session (and
206: * needs to get MSG_READY and stay around), or -d is given and it needs
207: * to exit.
208: */
209: if (ctx->cmdclient != NULL) {
210: if (!data->flag_detached)
211: server_write_client(ctx->cmdclient, MSG_READY, NULL, 0);
212: else
213: server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
214: }
215:
216: /* Set the client to the new session. */
217: if (!data->flag_detached) {
218: if (ctx->cmdclient != NULL) {
219: ctx->cmdclient->session = s;
220: server_redraw_client(ctx->cmdclient);
221: } else {
222: ctx->curclient->session = s;
223: server_redraw_client(ctx->curclient);
224: }
1.1 nicm 225: }
226: recalculate_sizes();
227:
1.4 nicm 228: return (1); /* 1 means don't tell command client to exit */
1.1 nicm 229: }
230:
231: void
232: cmd_new_session_send(struct cmd *self, struct buffer *b)
233: {
234: struct cmd_new_session_data *data = self->data;
235:
236: buffer_write(b, data, sizeof *data);
237: cmd_send_string(b, data->newname);
238: cmd_send_string(b, data->winname);
239: cmd_send_string(b, data->cmd);
240: }
241:
242: void
243: cmd_new_session_recv(struct cmd *self, struct buffer *b)
244: {
245: struct cmd_new_session_data *data;
246:
247: self->data = data = xmalloc(sizeof *data);
248: buffer_read(b, data, sizeof *data);
249: data->newname = cmd_recv_string(b);
250: data->winname = cmd_recv_string(b);
251: data->cmd = cmd_recv_string(b);
252: }
253:
254: void
255: cmd_new_session_free(struct cmd *self)
256: {
257: struct cmd_new_session_data *data = self->data;
258:
259: if (data->newname != NULL)
260: xfree(data->newname);
261: if (data->winname != NULL)
262: xfree(data->winname);
263: if (data->cmd != NULL)
264: xfree(data->cmd);
265: xfree(data);
266: }
267:
268: size_t
269: cmd_new_session_print(struct cmd *self, char *buf, size_t len)
270: {
271: struct cmd_new_session_data *data = self->data;
272: size_t off = 0;
273:
274: off += xsnprintf(buf, len, "%s", self->entry->name);
275: if (data == NULL)
276: return (off);
277: if (off < len && data->flag_detached)
278: off += xsnprintf(buf + off, len - off, " -d");
279: if (off < len && data->newname != NULL)
280: off += cmd_prarg(buf + off, len - off, " -s ", data->newname);
281: if (off < len && data->winname != NULL)
282: off += cmd_prarg(buf + off, len - off, " -n ", data->winname);
283: if (off < len && data->cmd != NULL)
284: off += cmd_prarg(buf + off, len - off, " ", data->cmd);
285: return (off);
286: }
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