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Add an additional heuristic to work out the current session when run from the

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command line. The name of all slave ptys in the server is known, so if the
client was run on a tty, look for any sessions containing that tty and use the
most recently created.

This is more reliable than looking at $TMUX if windows have been moved or
linked between sessions.
This commit is contained in:
Nicholas Marriott 2009-07-29 17:03:16 +00:00
parent c1d6d7ac6b
commit 2b331084b4
1 changed files with 46 additions and 7 deletions
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53
cmd.c
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@ -103,7 +103,7 @@ const struct cmd_entry *cmd_table[] = {
NULL
};
struct session *cmd_newest_session(void);
struct session *cmd_newest_session(struct sessions *);
struct client *cmd_lookup_client(const char *);
struct session *cmd_lookup_session(const char *, int *);
struct winlink *cmd_lookup_window(struct session *, const char *, int *);
@ -281,18 +281,57 @@ cmd_print(struct cmd *cmd, char *buf, size_t len)
/*
* Figure out the current session. Use: 1) the current session, if the command
* context has one; 2) the session specified in the TMUX variable from the
* environment (as passed from the client); 3) the newest session.
* context has one; 2) the session containing the pty of the calling client, if
* any 3) the session specified in the TMUX variable from the environment (as
* passed from the client); 3) the newest session.
*/
struct session *
cmd_current_session(struct cmd_ctx *ctx)
{
struct msg_command_data *data = ctx->msgdata;
struct client *c = ctx->cmdclient;
struct session *s;
struct sessions ss;
struct winlink *wl;
struct window_pane *wp;
u_int i;
int found;
if (ctx->cursession != NULL)
return (ctx->cursession);
/*
* If the name of the calling client's pty is know, build a list of the
* sessions that contain it and if any choose either the first or the
* newest.
*/
if (c != NULL && c->tty.path != NULL) {
ARRAY_INIT(&ss);
for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
if ((s = ARRAY_ITEM(&sessions, i)) == NULL)
continue;
found = 0;
RB_FOREACH(wl, winlinks, &s->windows) {
TAILQ_FOREACH(wp, &wl->window->panes, entry) {
if (strcmp(wp->tty, c->tty.path) == 0) {
found = 1;
break;
}
}
if (found)
break;
}
if (found)
ARRAY_ADD(&ss, s);
}
s = cmd_newest_session(&ss);
ARRAY_FREE(&ss);
if (s != NULL)
return (s);
}
/* Use the session from the TMUX environment variable. */
if (data != NULL && data->pid != -1) {
if (data->pid != getpid())
return (NULL);
@ -303,20 +342,20 @@ cmd_current_session(struct cmd_ctx *ctx)
return (s);
}
return (cmd_newest_session());
return (cmd_newest_session(&sessions));
}
/* Find the newest session. */
struct session *
cmd_newest_session(void)
cmd_newest_session(struct sessions *ss)
{
struct session *s, *snewest;
struct timeval *tv = NULL;
u_int i;
snewest = NULL;
for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
if ((s = ARRAY_ITEM(&sessions, i)) == NULL)
for (i = 0; i < ARRAY_LENGTH(ss); i++) {
if ((s = ARRAY_ITEM(ss, i)) == NULL)
continue;
if (tv == NULL || timercmp(&s->tv, tv, >)) {