mirror of
https://github.com/tmux/tmux.git
synced 2025-09-02 05:21:10 +00:00
Break new window and pane creation common code from various commands and
window.c into a separate file spawn.c.
This commit is contained in:
nicm
215
window.c
215
window.c
@ -26,7 +26,6 @@
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <time.h>
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#include <unistd.h>
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#include <util.h>
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@ -73,20 +72,10 @@ const struct window_mode *all_window_modes[] = {
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NULL
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};
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static void window_destroy(struct window *);
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static struct window_pane *window_pane_create(struct window *, u_int, u_int,
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u_int);
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static void window_pane_destroy(struct window_pane *);
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static void window_pane_read_callback(struct bufferevent *, void *);
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static void window_pane_error_callback(struct bufferevent *, short, void *);
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static int winlink_next_index(struct winlinks *, int);
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static struct window_pane *window_pane_choose_best(struct window_pane **,
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u_int);
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RB_GENERATE(windows, window, entry, window_cmp);
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RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
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RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
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@ -342,37 +331,7 @@ window_create(u_int sx, u_int sy)
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return (w);
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}
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struct window *
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window_create_spawn(const char *name, int argc, char **argv, const char *path,
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const char *shell, const char *cwd, struct environ *env,
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struct termios *tio, u_int sx, u_int sy, u_int hlimit, char **cause)
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{
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struct window *w;
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struct window_pane *wp;
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w = window_create(sx, sy);
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wp = window_add_pane(w, NULL, 0, 0, hlimit);
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layout_init(w, wp);
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if (window_pane_spawn(wp, argc, argv, path, shell, cwd,
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env, tio, cause) != 0) {
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window_destroy(w);
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return (NULL);
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}
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w->active = TAILQ_FIRST(&w->panes);
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if (name != NULL) {
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w->name = xstrdup(name);
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options_set_number(w->options, "automatic-rename", 0);
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} else
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w->name = default_window_name(w);
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notify_window("window-pane-changed", w);
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return (w);
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}
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static void
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void
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window_destroy(struct window *w)
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{
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log_debug("window @%u destroyed (%d references)", w->id, w->references);
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@ -463,17 +422,22 @@ window_has_pane(struct window *w, struct window_pane *wp)
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}
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int
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window_set_active_pane(struct window *w, struct window_pane *wp)
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window_set_active_pane(struct window *w, struct window_pane *wp, int notify)
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{
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log_debug("%s: pane %%%u (was %%%u)", __func__, wp->id, w->active->id);
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log_debug("%s: pane %%%u", __func__, wp->id);
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if (wp == w->active)
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return (0);
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w->last = w->active;
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w->active = wp;
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w->active->active_point = next_active_point++;
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w->active->flags |= PANE_CHANGED;
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tty_update_window_offset(w);
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notify_window("window-pane-changed", w);
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if (notify)
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notify_window("window-pane-changed", w);
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return (1);
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}
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@ -571,7 +535,7 @@ window_zoom(struct window_pane *wp)
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return (-1);
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if (w->active != wp)
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window_set_active_pane(w, wp);
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window_set_active_pane(w, wp, 1);
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TAILQ_FOREACH(wp1, &w->panes, entry) {
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wp1->saved_layout_cell = wp1->layout_cell;
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@ -610,8 +574,8 @@ window_unzoom(struct window *w)
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}
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struct window_pane *
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window_add_pane(struct window *w, struct window_pane *other, int before,
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int full_size, u_int hlimit)
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window_add_pane(struct window *w, struct window_pane *other, u_int hlimit,
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int flags)
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{
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struct window_pane *wp;
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@ -622,15 +586,15 @@ window_add_pane(struct window *w, struct window_pane *other, int before,
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if (TAILQ_EMPTY(&w->panes)) {
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log_debug("%s: @%u at start", __func__, w->id);
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TAILQ_INSERT_HEAD(&w->panes, wp, entry);
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} else if (before) {
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} else if (flags & SPAWN_BEFORE) {
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log_debug("%s: @%u before %%%u", __func__, w->id, wp->id);
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if (full_size)
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if (flags & SPAWN_FULLSIZE)
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TAILQ_INSERT_HEAD(&w->panes, wp, entry);
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else
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TAILQ_INSERT_BEFORE(other, wp, entry);
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} else {
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log_debug("%s: @%u after %%%u", __func__, w->id, wp->id);
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if (full_size)
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if (flags & SPAWN_FULLSIZE)
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TAILQ_INSERT_TAIL(&w->panes, wp, entry);
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else
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TAILQ_INSERT_AFTER(&w->panes, other, wp, entry);
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@ -887,141 +851,6 @@ window_pane_destroy(struct window_pane *wp)
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free(wp);
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}
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int
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window_pane_spawn(struct window_pane *wp, int argc, char **argv,
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const char *path, const char *shell, const char *cwd, struct environ *env,
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struct termios *tio, char **cause)
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{
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struct winsize ws;
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char *argv0, *cmd, **argvp;
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const char *ptr, *first, *home;
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struct termios tio2;
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sigset_t set, oldset;
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if (wp->fd != -1) {
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bufferevent_free(wp->event);
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close(wp->fd);
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}
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if (argc > 0) {
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cmd_free_argv(wp->argc, wp->argv);
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wp->argc = argc;
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wp->argv = cmd_copy_argv(argc, argv);
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}
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if (shell != NULL) {
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free(wp->shell);
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wp->shell = xstrdup(shell);
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}
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if (cwd != NULL) {
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free((void *)wp->cwd);
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wp->cwd = xstrdup(cwd);
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}
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wp->flags &= ~(PANE_STATUSREADY|PANE_STATUSDRAWN);
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cmd = cmd_stringify_argv(wp->argc, wp->argv);
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log_debug("%s: shell=%s", __func__, wp->shell);
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log_debug("%s: cmd=%s", __func__, cmd);
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log_debug("%s: cwd=%s", __func__, cwd);
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cmd_log_argv(wp->argc, wp->argv, __func__);
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environ_log(env, "%s: environment ", __func__);
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memset(&ws, 0, sizeof ws);
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ws.ws_col = screen_size_x(&wp->base);
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ws.ws_row = screen_size_y(&wp->base);
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sigfillset(&set);
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sigprocmask(SIG_BLOCK, &set, &oldset);
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switch (wp->pid = fdforkpty(ptm_fd, &wp->fd, wp->tty, NULL, &ws)) {
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case -1:
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wp->event = NULL;
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wp->fd = -1;
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xasprintf(cause, "%s: %s", cmd, strerror(errno));
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free(cmd);
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sigprocmask(SIG_SETMASK, &oldset, NULL);
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return (-1);
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case 0:
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proc_clear_signals(server_proc, 1);
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sigprocmask(SIG_SETMASK, &oldset, NULL);
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cwd = NULL;
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if (chdir(wp->cwd) == 0)
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cwd = wp->cwd;
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else if ((home = find_home()) != NULL && chdir(home) == 0)
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cwd = home;
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else
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chdir("/");
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if (tcgetattr(STDIN_FILENO, &tio2) != 0)
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fatal("tcgetattr failed");
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if (tio != NULL)
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memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
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tio2.c_cc[VERASE] = '\177';
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if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
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fatal("tcgetattr failed");
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log_close();
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closefrom(STDERR_FILENO + 1);
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if (path != NULL)
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environ_set(env, "PATH", "%s", path);
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if (cwd != NULL)
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environ_set(env, "PWD", "%s", cwd);
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environ_set(env, "TMUX_PANE", "%%%u", wp->id);
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environ_push(env);
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setenv("SHELL", wp->shell, 1);
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ptr = strrchr(wp->shell, '/');
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/*
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* If given one argument, assume it should be passed to sh -c;
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* with more than one argument, use execvp(). If there is no
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* arguments, create a login shell.
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*/
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if (wp->argc > 0) {
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if (wp->argc != 1) {
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/* Copy to ensure argv ends in NULL. */
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argvp = cmd_copy_argv(wp->argc, wp->argv);
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execvp(argvp[0], argvp);
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fatal("execvp failed");
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}
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first = wp->argv[0];
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if (ptr != NULL && *(ptr + 1) != '\0')
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xasprintf(&argv0, "%s", ptr + 1);
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else
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xasprintf(&argv0, "%s", wp->shell);
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execl(wp->shell, argv0, "-c", first, (char *)NULL);
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fatal("execl failed");
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}
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if (ptr != NULL && *(ptr + 1) != '\0')
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xasprintf(&argv0, "-%s", ptr + 1);
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else
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xasprintf(&argv0, "-%s", wp->shell);
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execl(wp->shell, argv0, (char *)NULL);
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fatal("execl failed");
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}
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log_debug("%s: master=%s", __func__, ttyname(wp->fd));
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log_debug("%s: slave=%s", __func__, wp->tty);
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sigprocmask(SIG_SETMASK, &oldset, NULL);
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setblocking(wp->fd, 0);
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wp->event = bufferevent_new(wp->fd, window_pane_read_callback, NULL,
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window_pane_error_callback, wp);
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if (wp->event == NULL)
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fatalx("out of memory");
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wp->pipe_off = 0;
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wp->flags &= ~PANE_EXITED;
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bufferevent_setwatermark(wp->event, EV_READ, 0, READ_SIZE);
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bufferevent_enable(wp->event, EV_READ|EV_WRITE);
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free(cmd);
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return (0);
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}
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static void
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window_pane_read_callback(__unused struct bufferevent *bufev, void *data)
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{
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@ -1056,6 +885,18 @@ window_pane_error_callback(__unused struct bufferevent *bufev,
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server_destroy_pane(wp, 1);
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}
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void
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window_pane_set_event(struct window_pane *wp)
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{
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setblocking(wp->fd, 0);
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wp->event = bufferevent_new(wp->fd, window_pane_read_callback,
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NULL, window_pane_error_callback, wp);
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bufferevent_setwatermark(wp->event, EV_READ, 0, READ_SIZE);
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bufferevent_enable(wp->event, EV_READ|EV_WRITE);
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}
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void
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window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
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{
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@ -1604,6 +1445,8 @@ winlink_shuffle_up(struct session *s, struct winlink *wl)
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{
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int idx, last;
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if (wl == NULL)
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return (-1);
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idx = wl->idx + 1;
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/* Find the next free index. */
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