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terminal.c
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terminal.c
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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* Terminal window support, see ":help :terminal".
*
* There are three parts:
* 1. Generic code for all systems.
* Uses libvterm for the terminal emulator.
* 2. The MS-Windows implementation.
* Uses winpty.
* 3. The Unix-like implementation.
* Uses pseudo-tty's (pty's).
*
* For each terminal one VTerm is constructed. This uses libvterm. A copy of
* this library is in the libvterm directory.
*
* When a terminal window is opened, a job is started that will be connected to
* the terminal emulator.
*
* If the terminal window has keyboard focus, typed keys are converted to the
* terminal encoding and writing to the job over a channel.
*
* If the job produces output, it is written to the terminal emulator. The
* terminal emulator invokes callbacks when its screen content changes. The
* line range is stored in tl_dirty_row_start and tl_dirty_row_end. Once in a
* while, if the terminal window is visible, the screen contents is drawn.
*
* When the job ends the text is put in a buffer. Redrawing then happens from
* that buffer, attributes come from the scrollback buffer tl_scrollback.
* When the buffer is changed it is turned into a normal buffer, the attributes
* in tl_scrollback are no longer used.
*/
#include "vim.h"
#if defined(FEAT_TERMINAL) || defined(PROTO)
#ifndef MIN
# define MIN(x,y) ((x) < (y) ? (x) : (y))
#endif
#ifndef MAX
# define MAX(x,y) ((x) > (y) ? (x) : (y))
#endif
#include "libvterm/include/vterm.h"
/* This is VTermScreenCell without the characters, thus much smaller. */
typedef struct {
VTermScreenCellAttrs attrs;
char width;
VTermColor fg;
VTermColor bg;
} cellattr_T;
typedef struct sb_line_S {
int sb_cols; /* can differ per line */
cellattr_T *sb_cells; /* allocated */
cellattr_T sb_fill_attr; /* for short line */
} sb_line_T;
#ifdef WIN3264
# ifndef HPCON
# define HPCON VOID*
# endif
# ifndef EXTENDED_STARTUPINFO_PRESENT
# define EXTENDED_STARTUPINFO_PRESENT 0x00080000
# endif
# ifndef PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE
# define PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE 0x00020016
# endif
typedef struct _DYN_STARTUPINFOEXW
{
STARTUPINFOW StartupInfo;
LPPROC_THREAD_ATTRIBUTE_LIST lpAttributeList;
} DYN_STARTUPINFOEXW, *PDYN_STARTUPINFOEXW;
#endif
/* typedef term_T in structs.h */
struct terminal_S {
term_T *tl_next;
VTerm *tl_vterm;
job_T *tl_job;
buf_T *tl_buffer;
#if defined(FEAT_GUI)
int tl_system; /* when non-zero used for :!cmd output */
int tl_toprow; /* row with first line of system terminal */
#endif
/* Set when setting the size of a vterm, reset after redrawing. */
int tl_vterm_size_changed;
int tl_normal_mode; /* TRUE: Terminal-Normal mode */
int tl_channel_closed;
int tl_channel_recently_closed; // still need to handle tl_finish
int tl_finish;
#define TL_FINISH_UNSET NUL
#define TL_FINISH_CLOSE 'c' /* ++close or :terminal without argument */
#define TL_FINISH_NOCLOSE 'n' /* ++noclose */
#define TL_FINISH_OPEN 'o' /* ++open */
char_u *tl_opencmd;
char_u *tl_eof_chars;
char_u *tl_arg0_cmd; // To format the status bar
#ifdef WIN3264
void *tl_winpty_config;
void *tl_winpty;
HPCON tl_conpty;
DYN_STARTUPINFOEXW tl_siex; // Structure that always needs to be hold
FILE *tl_out_fd;
#endif
#if defined(FEAT_SESSION)
char_u *tl_command;
#endif
char_u *tl_kill;
/* last known vterm size */
int tl_rows;
int tl_cols;
char_u *tl_title; /* NULL or allocated */
char_u *tl_status_text; /* NULL or allocated */
/* Range of screen rows to update. Zero based. */
int tl_dirty_row_start; /* MAX_ROW if nothing dirty */
int tl_dirty_row_end; /* row below last one to update */
int tl_dirty_snapshot; /* text updated after making snapshot */
#ifdef FEAT_TIMERS
int tl_timer_set;
proftime_T tl_timer_due;
#endif
int tl_postponed_scroll; /* to be scrolled up */
garray_T tl_scrollback;
int tl_scrollback_scrolled;
cellattr_T tl_default_color;
linenr_T tl_top_diff_rows; /* rows of top diff file or zero */
linenr_T tl_bot_diff_rows; /* rows of bottom diff file */
VTermPos tl_cursor_pos;
int tl_cursor_visible;
int tl_cursor_blink;
int tl_cursor_shape; /* 1: block, 2: underline, 3: bar */
char_u *tl_cursor_color; /* NULL or allocated */
int tl_using_altscreen;
};
#define TMODE_ONCE 1 /* CTRL-\ CTRL-N used */
#define TMODE_LOOP 2 /* CTRL-W N used */
/*
* List of all active terminals.
*/
static term_T *first_term = NULL;
/* Terminal active in terminal_loop(). */
static term_T *in_terminal_loop = NULL;
#ifdef WIN3264
static BOOL has_winpty = FALSE;
static BOOL has_conpty = FALSE;
#endif
#define MAX_ROW 999999 /* used for tl_dirty_row_end to update all rows */
#define KEY_BUF_LEN 200
/*
* Functions with separate implementation for MS-Windows and Unix-like systems.
*/
static int term_and_job_init(term_T *term, typval_T *argvar, char **argv, jobopt_T *opt, jobopt_T *orig_opt);
static int create_pty_only(term_T *term, jobopt_T *opt);
static void term_report_winsize(term_T *term, int rows, int cols);
static void term_free_vterm(term_T *term);
#ifdef FEAT_GUI
static void update_system_term(term_T *term);
#endif
/* The character that we know (or assume) that the terminal expects for the
* backspace key. */
static int term_backspace_char = BS;
/* "Terminal" highlight group colors. */
static int term_default_cterm_fg = -1;
static int term_default_cterm_bg = -1;
/* Store the last set and the desired cursor properties, so that we only update
* them when needed. Doing it unnecessary may result in flicker. */
static char_u *last_set_cursor_color = NULL;
static char_u *desired_cursor_color = NULL;
static int last_set_cursor_shape = -1;
static int desired_cursor_shape = -1;
static int last_set_cursor_blink = -1;
static int desired_cursor_blink = -1;
/**************************************
* 1. Generic code for all systems.
*/
static int
cursor_color_equal(char_u *lhs_color, char_u *rhs_color)
{
if (lhs_color != NULL && rhs_color != NULL)
return STRCMP(lhs_color, rhs_color) == 0;
return lhs_color == NULL && rhs_color == NULL;
}
static void
cursor_color_copy(char_u **to_color, char_u *from_color)
{
// Avoid a free & alloc if the value is already right.
if (cursor_color_equal(*to_color, from_color))
return;
vim_free(*to_color);
*to_color = (from_color == NULL) ? NULL : vim_strsave(from_color);
}
static char_u *
cursor_color_get(char_u *color)
{
return (color == NULL) ? (char_u *)"" : color;
}
/*
* Parse 'termwinsize' and set "rows" and "cols" for the terminal size in the
* current window.
* Sets "rows" and/or "cols" to zero when it should follow the window size.
* Return TRUE if the size is the minimum size: "24*80".
*/
static int
parse_termwinsize(win_T *wp, int *rows, int *cols)
{
int minsize = FALSE;
*rows = 0;
*cols = 0;
if (*wp->w_p_tws != NUL)
{
char_u *p = vim_strchr(wp->w_p_tws, 'x');
/* Syntax of value was already checked when it's set. */
if (p == NULL)
{
minsize = TRUE;
p = vim_strchr(wp->w_p_tws, '*');
}
*rows = atoi((char *)wp->w_p_tws);
*cols = atoi((char *)p + 1);
}
return minsize;
}
/*
* Determine the terminal size from 'termwinsize' and the current window.
*/
static void
set_term_and_win_size(term_T *term)
{
#ifdef FEAT_GUI
if (term->tl_system)
{
/* Use the whole screen for the system command. However, it will start
* at the command line and scroll up as needed, using tl_toprow. */
term->tl_rows = Rows;
term->tl_cols = Columns;
return;
}
#endif
if (parse_termwinsize(curwin, &term->tl_rows, &term->tl_cols))
{
if (term->tl_rows != 0)
term->tl_rows = MAX(term->tl_rows, curwin->w_height);
if (term->tl_cols != 0)
term->tl_cols = MAX(term->tl_cols, curwin->w_width);
}
if (term->tl_rows == 0)
term->tl_rows = curwin->w_height;
else
win_setheight_win(term->tl_rows, curwin);
if (term->tl_cols == 0)
term->tl_cols = curwin->w_width;
else
win_setwidth_win(term->tl_cols, curwin);
}
/*
* Initialize job options for a terminal job.
* Caller may overrule some of them.
*/
void
init_job_options(jobopt_T *opt)
{
clear_job_options(opt);
opt->jo_mode = MODE_RAW;
opt->jo_out_mode = MODE_RAW;
opt->jo_err_mode = MODE_RAW;
opt->jo_set = JO_MODE | JO_OUT_MODE | JO_ERR_MODE;
}
/*
* Set job options mandatory for a terminal job.
*/
static void
setup_job_options(jobopt_T *opt, int rows, int cols)
{
#ifndef WIN3264
/* Win32: Redirecting the job output won't work, thus always connect stdout
* here. */
if (!(opt->jo_set & JO_OUT_IO))
#endif
{
/* Connect stdout to the terminal. */
opt->jo_io[PART_OUT] = JIO_BUFFER;
opt->jo_io_buf[PART_OUT] = curbuf->b_fnum;
opt->jo_modifiable[PART_OUT] = 0;
opt->jo_set |= JO_OUT_IO + JO_OUT_BUF + JO_OUT_MODIFIABLE;
}
#ifndef WIN3264
/* Win32: Redirecting the job output won't work, thus always connect stderr
* here. */
if (!(opt->jo_set & JO_ERR_IO))
#endif
{
/* Connect stderr to the terminal. */
opt->jo_io[PART_ERR] = JIO_BUFFER;
opt->jo_io_buf[PART_ERR] = curbuf->b_fnum;
opt->jo_modifiable[PART_ERR] = 0;
opt->jo_set |= JO_ERR_IO + JO_ERR_BUF + JO_ERR_MODIFIABLE;
}
opt->jo_pty = TRUE;
if ((opt->jo_set2 & JO2_TERM_ROWS) == 0)
opt->jo_term_rows = rows;
if ((opt->jo_set2 & JO2_TERM_COLS) == 0)
opt->jo_term_cols = cols;
}
/*
* Close a terminal buffer (and its window). Used when creating the terminal
* fails.
*/
static void
term_close_buffer(buf_T *buf, buf_T *old_curbuf)
{
free_terminal(buf);
if (old_curbuf != NULL)
{
--curbuf->b_nwindows;
curbuf = old_curbuf;
curwin->w_buffer = curbuf;
++curbuf->b_nwindows;
}
/* Wiping out the buffer will also close the window and call
* free_terminal(). */
do_buffer(DOBUF_WIPE, DOBUF_FIRST, FORWARD, buf->b_fnum, TRUE);
}
/*
* Start a terminal window and return its buffer.
* Use either "argvar" or "argv", the other must be NULL.
* When "flags" has TERM_START_NOJOB only create the buffer, b_term and open
* the window.
* Returns NULL when failed.
*/
buf_T *
term_start(
typval_T *argvar,
char **argv,
jobopt_T *opt,
int flags)
{
exarg_T split_ea;
win_T *old_curwin = curwin;
term_T *term;
buf_T *old_curbuf = NULL;
int res;
buf_T *newbuf;
int vertical = opt->jo_vertical || (cmdmod.split & WSP_VERT);
jobopt_T orig_opt; // only partly filled
if (check_restricted() || check_secure())
return NULL;
if ((opt->jo_set & (JO_IN_IO + JO_OUT_IO + JO_ERR_IO))
== (JO_IN_IO + JO_OUT_IO + JO_ERR_IO)
|| (!(opt->jo_set & JO_OUT_IO) && (opt->jo_set & JO_OUT_BUF))
|| (!(opt->jo_set & JO_ERR_IO) && (opt->jo_set & JO_ERR_BUF)))
{
emsg(_(e_invarg));
return NULL;
}
term = (term_T *)alloc_clear(sizeof(term_T));
if (term == NULL)
return NULL;
term->tl_dirty_row_end = MAX_ROW;
term->tl_cursor_visible = TRUE;
term->tl_cursor_shape = VTERM_PROP_CURSORSHAPE_BLOCK;
term->tl_finish = opt->jo_term_finish;
#ifdef FEAT_GUI
term->tl_system = (flags & TERM_START_SYSTEM);
#endif
ga_init2(&term->tl_scrollback, sizeof(sb_line_T), 300);
vim_memset(&split_ea, 0, sizeof(split_ea));
if (opt->jo_curwin)
{
/* Create a new buffer in the current window. */
if (!can_abandon(curbuf, flags & TERM_START_FORCEIT))
{
no_write_message();
vim_free(term);
return NULL;
}
if (do_ecmd(0, NULL, NULL, &split_ea, ECMD_ONE,
ECMD_HIDE
+ ((flags & TERM_START_FORCEIT) ? ECMD_FORCEIT : 0),
curwin) == FAIL)
{
vim_free(term);
return NULL;
}
}
else if (opt->jo_hidden || (flags & TERM_START_SYSTEM))
{
buf_T *buf;
/* Create a new buffer without a window. Make it the current buffer for
* a moment to be able to do the initialisations. */
buf = buflist_new((char_u *)"", NULL, (linenr_T)0,
BLN_NEW | BLN_LISTED);
if (buf == NULL || ml_open(buf) == FAIL)
{
vim_free(term);
return NULL;
}
old_curbuf = curbuf;
--curbuf->b_nwindows;
curbuf = buf;
curwin->w_buffer = buf;
++curbuf->b_nwindows;
}
else
{
/* Open a new window or tab. */
split_ea.cmdidx = CMD_new;
split_ea.cmd = (char_u *)"new";
split_ea.arg = (char_u *)"";
if (opt->jo_term_rows > 0 && !vertical)
{
split_ea.line2 = opt->jo_term_rows;
split_ea.addr_count = 1;
}
if (opt->jo_term_cols > 0 && vertical)
{
split_ea.line2 = opt->jo_term_cols;
split_ea.addr_count = 1;
}
if (vertical)
cmdmod.split |= WSP_VERT;
ex_splitview(&split_ea);
if (curwin == old_curwin)
{
/* split failed */
vim_free(term);
return NULL;
}
}
term->tl_buffer = curbuf;
curbuf->b_term = term;
if (!opt->jo_hidden)
{
/* Only one size was taken care of with :new, do the other one. With
* "curwin" both need to be done. */
if (opt->jo_term_rows > 0 && (opt->jo_curwin || vertical))
win_setheight(opt->jo_term_rows);
if (opt->jo_term_cols > 0 && (opt->jo_curwin || !vertical))
win_setwidth(opt->jo_term_cols);
}
/* Link the new terminal in the list of active terminals. */
term->tl_next = first_term;
first_term = term;
if (opt->jo_term_name != NULL)
curbuf->b_ffname = vim_strsave(opt->jo_term_name);
else if (argv != NULL)
curbuf->b_ffname = vim_strsave((char_u *)"!system");
else
{
int i;
size_t len;
char_u *cmd, *p;
if (argvar->v_type == VAR_STRING)
{
cmd = argvar->vval.v_string;
if (cmd == NULL)
cmd = (char_u *)"";
else if (STRCMP(cmd, "NONE") == 0)
cmd = (char_u *)"pty";
}
else if (argvar->v_type != VAR_LIST
|| argvar->vval.v_list == NULL
|| argvar->vval.v_list->lv_len < 1
|| (cmd = tv_get_string_chk(
&argvar->vval.v_list->lv_first->li_tv)) == NULL)
cmd = (char_u*)"";
len = STRLEN(cmd) + 10;
p = alloc((int)len);
for (i = 0; p != NULL; ++i)
{
/* Prepend a ! to the command name to avoid the buffer name equals
* the executable, otherwise ":w!" would overwrite it. */
if (i == 0)
vim_snprintf((char *)p, len, "!%s", cmd);
else
vim_snprintf((char *)p, len, "!%s (%d)", cmd, i);
if (buflist_findname(p) == NULL)
{
vim_free(curbuf->b_ffname);
curbuf->b_ffname = p;
break;
}
}
}
curbuf->b_fname = curbuf->b_ffname;
if (opt->jo_term_opencmd != NULL)
term->tl_opencmd = vim_strsave(opt->jo_term_opencmd);
if (opt->jo_eof_chars != NULL)
term->tl_eof_chars = vim_strsave(opt->jo_eof_chars);
set_string_option_direct((char_u *)"buftype", -1,
(char_u *)"terminal", OPT_FREE|OPT_LOCAL, 0);
// Avoid that 'buftype' is reset when this buffer is entered.
curbuf->b_p_initialized = TRUE;
/* Mark the buffer as not modifiable. It can only be made modifiable after
* the job finished. */
curbuf->b_p_ma = FALSE;
set_term_and_win_size(term);
#ifdef WIN3264
mch_memmove(orig_opt.jo_io, opt->jo_io, sizeof(orig_opt.jo_io));
#endif
setup_job_options(opt, term->tl_rows, term->tl_cols);
if (flags & TERM_START_NOJOB)
return curbuf;
#if defined(FEAT_SESSION)
/* Remember the command for the session file. */
if (opt->jo_term_norestore || argv != NULL)
{
term->tl_command = vim_strsave((char_u *)"NONE");
}
else if (argvar->v_type == VAR_STRING)
{
char_u *cmd = argvar->vval.v_string;
if (cmd != NULL && STRCMP(cmd, p_sh) != 0)
term->tl_command = vim_strsave(cmd);
}
else if (argvar->v_type == VAR_LIST
&& argvar->vval.v_list != NULL
&& argvar->vval.v_list->lv_len > 0)
{
garray_T ga;
listitem_T *item;
ga_init2(&ga, 1, 100);
for (item = argvar->vval.v_list->lv_first;
item != NULL; item = item->li_next)
{
char_u *s = tv_get_string_chk(&item->li_tv);
char_u *p;
if (s == NULL)
break;
p = vim_strsave_fnameescape(s, FALSE);
if (p == NULL)
break;
ga_concat(&ga, p);
vim_free(p);
ga_append(&ga, ' ');
}
if (item == NULL)
{
ga_append(&ga, NUL);
term->tl_command = ga.ga_data;
}
else
ga_clear(&ga);
}
#endif
if (opt->jo_term_kill != NULL)
{
char_u *p = skiptowhite(opt->jo_term_kill);
term->tl_kill = vim_strnsave(opt->jo_term_kill, p - opt->jo_term_kill);
}
/* System dependent: setup the vterm and maybe start the job in it. */
if (argv == NULL
&& argvar->v_type == VAR_STRING
&& argvar->vval.v_string != NULL
&& STRCMP(argvar->vval.v_string, "NONE") == 0)
res = create_pty_only(term, opt);
else
res = term_and_job_init(term, argvar, argv, opt, &orig_opt);
newbuf = curbuf;
if (res == OK)
{
/* Get and remember the size we ended up with. Update the pty. */
vterm_get_size(term->tl_vterm, &term->tl_rows, &term->tl_cols);
term_report_winsize(term, term->tl_rows, term->tl_cols);
#ifdef FEAT_GUI
if (term->tl_system)
{
/* display first line below typed command */
term->tl_toprow = msg_row + 1;
term->tl_dirty_row_end = 0;
}
#endif
/* Make sure we don't get stuck on sending keys to the job, it leads to
* a deadlock if the job is waiting for Vim to read. */
channel_set_nonblock(term->tl_job->jv_channel, PART_IN);
if (old_curbuf != NULL)
{
--curbuf->b_nwindows;
curbuf = old_curbuf;
curwin->w_buffer = curbuf;
++curbuf->b_nwindows;
}
}
else
{
term_close_buffer(curbuf, old_curbuf);
return NULL;
}
apply_autocmds(EVENT_TERMINALOPEN, NULL, NULL, FALSE, newbuf);
return newbuf;
}
/*
* ":terminal": open a terminal window and execute a job in it.
*/
void
ex_terminal(exarg_T *eap)
{
typval_T argvar[2];
jobopt_T opt;
char_u *cmd;
char_u *tofree = NULL;
init_job_options(&opt);
cmd = eap->arg;
while (*cmd == '+' && *(cmd + 1) == '+')
{
char_u *p, *ep;
cmd += 2;
p = skiptowhite(cmd);
ep = vim_strchr(cmd, '=');
if (ep != NULL && ep < p)
p = ep;
if ((int)(p - cmd) == 5 && STRNICMP(cmd, "close", 5) == 0)
opt.jo_term_finish = 'c';
else if ((int)(p - cmd) == 7 && STRNICMP(cmd, "noclose", 7) == 0)
opt.jo_term_finish = 'n';
else if ((int)(p - cmd) == 4 && STRNICMP(cmd, "open", 4) == 0)
opt.jo_term_finish = 'o';
else if ((int)(p - cmd) == 6 && STRNICMP(cmd, "curwin", 6) == 0)
opt.jo_curwin = 1;
else if ((int)(p - cmd) == 6 && STRNICMP(cmd, "hidden", 6) == 0)
opt.jo_hidden = 1;
else if ((int)(p - cmd) == 9 && STRNICMP(cmd, "norestore", 9) == 0)
opt.jo_term_norestore = 1;
else if ((int)(p - cmd) == 4 && STRNICMP(cmd, "kill", 4) == 0
&& ep != NULL)
{
opt.jo_set2 |= JO2_TERM_KILL;
opt.jo_term_kill = ep + 1;
p = skiptowhite(cmd);
}
else if ((int)(p - cmd) == 4 && STRNICMP(cmd, "rows", 4) == 0
&& ep != NULL && isdigit(ep[1]))
{
opt.jo_set2 |= JO2_TERM_ROWS;
opt.jo_term_rows = atoi((char *)ep + 1);
p = skiptowhite(cmd);
}
else if ((int)(p - cmd) == 4 && STRNICMP(cmd, "cols", 4) == 0
&& ep != NULL && isdigit(ep[1]))
{
opt.jo_set2 |= JO2_TERM_COLS;
opt.jo_term_cols = atoi((char *)ep + 1);
p = skiptowhite(cmd);
}
else if ((int)(p - cmd) == 3 && STRNICMP(cmd, "eof", 3) == 0
&& ep != NULL)
{
char_u *buf = NULL;
char_u *keys;
p = skiptowhite(cmd);
*p = NUL;
keys = replace_termcodes(ep + 1, &buf, TRUE, TRUE, TRUE);
opt.jo_set2 |= JO2_EOF_CHARS;
opt.jo_eof_chars = vim_strsave(keys);
vim_free(buf);
*p = ' ';
}
#ifdef WIN3264
else if ((int)(p - cmd) == 4 && STRNICMP(cmd, "type", 4) == 0
&& ep != NULL)
{
int tty_type = NUL;
p = skiptowhite(cmd);
if (STRNICMP(ep + 1, "winpty", p - (ep + 1)) == 0)
tty_type = 'w';
else if (STRNICMP(ep + 1, "conpty", p - (ep + 1)) == 0)
tty_type = 'c';
else
{
semsg(e_invargval, "type");
goto theend;
}
opt.jo_set2 |= JO2_TTY_TYPE;
opt.jo_tty_type = tty_type;
}
#endif
else
{
if (*p)
*p = NUL;
semsg(_("E181: Invalid attribute: %s"), cmd);
goto theend;
}
cmd = skipwhite(p);
}
if (*cmd == NUL)
{
/* Make a copy of 'shell', an autocommand may change the option. */
tofree = cmd = vim_strsave(p_sh);
/* default to close when the shell exits */
if (opt.jo_term_finish == NUL)
opt.jo_term_finish = 'c';
}
if (eap->addr_count > 0)
{
/* Write lines from current buffer to the job. */
opt.jo_set |= JO_IN_IO | JO_IN_BUF | JO_IN_TOP | JO_IN_BOT;
opt.jo_io[PART_IN] = JIO_BUFFER;
opt.jo_io_buf[PART_IN] = curbuf->b_fnum;
opt.jo_in_top = eap->line1;
opt.jo_in_bot = eap->line2;
}
argvar[0].v_type = VAR_STRING;
argvar[0].vval.v_string = cmd;
argvar[1].v_type = VAR_UNKNOWN;
term_start(argvar, NULL, &opt, eap->forceit ? TERM_START_FORCEIT : 0);
vim_free(tofree);
theend:
vim_free(opt.jo_eof_chars);
}
#if defined(FEAT_SESSION) || defined(PROTO)
/*
* Write a :terminal command to the session file to restore the terminal in
* window "wp".
* Return FAIL if writing fails.
*/
int
term_write_session(FILE *fd, win_T *wp)
{
term_T *term = wp->w_buffer->b_term;
/* Create the terminal and run the command. This is not without
* risk, but let's assume the user only creates a session when this
* will be OK. */
if (fprintf(fd, "terminal ++curwin ++cols=%d ++rows=%d ",
term->tl_cols, term->tl_rows) < 0)
return FAIL;
#ifdef WIN3264
if (fprintf(fd, "++type=%s ", term->tl_job->jv_tty_type) < 0)
return FAIL;
#endif
if (term->tl_command != NULL && fputs((char *)term->tl_command, fd) < 0)
return FAIL;
return put_eol(fd);
}
/*
* Return TRUE if "buf" has a terminal that should be restored.
*/
int
term_should_restore(buf_T *buf)
{
term_T *term = buf->b_term;
return term != NULL && (term->tl_command == NULL
|| STRCMP(term->tl_command, "NONE") != 0);
}
#endif
/*
* Free the scrollback buffer for "term".
*/
static void
free_scrollback(term_T *term)
{
int i;
for (i = 0; i < term->tl_scrollback.ga_len; ++i)
vim_free(((sb_line_T *)term->tl_scrollback.ga_data + i)->sb_cells);
ga_clear(&term->tl_scrollback);
}
// Terminals that need to be freed soon.
term_T *terminals_to_free = NULL;
/*
* Free a terminal and everything it refers to.
* Kills the job if there is one.
* Called when wiping out a buffer.
* The actual terminal structure is freed later in free_unused_terminals(),
* because callbacks may wipe out a buffer while the terminal is still
* referenced.
*/
void
free_terminal(buf_T *buf)
{
term_T *term = buf->b_term;
term_T *tp;
if (term == NULL)
return;
// Unlink the terminal form the list of terminals.
if (first_term == term)
first_term = term->tl_next;
else
for (tp = first_term; tp->tl_next != NULL; tp = tp->tl_next)
if (tp->tl_next == term)
{
tp->tl_next = term->tl_next;
break;
}
if (term->tl_job != NULL)
{
if (term->tl_job->jv_status != JOB_ENDED
&& term->tl_job->jv_status != JOB_FINISHED
&& term->tl_job->jv_status != JOB_FAILED)
job_stop(term->tl_job, NULL, "kill");
job_unref(term->tl_job);
}
term->tl_next = terminals_to_free;
terminals_to_free = term;
buf->b_term = NULL;
if (in_terminal_loop == term)
in_terminal_loop = NULL;
}
void
free_unused_terminals()
{
while (terminals_to_free != NULL)
{
term_T *term = terminals_to_free;
terminals_to_free = term->tl_next;
free_scrollback(term);
term_free_vterm(term);
vim_free(term->tl_title);
#ifdef FEAT_SESSION
vim_free(term->tl_command);
#endif
vim_free(term->tl_kill);
vim_free(term->tl_status_text);
vim_free(term->tl_opencmd);
vim_free(term->tl_eof_chars);
vim_free(term->tl_arg0_cmd);
#ifdef WIN3264
if (term->tl_out_fd != NULL)
fclose(term->tl_out_fd);
#endif
vim_free(term->tl_cursor_color);
vim_free(term);
}
}
/*
* Get the part that is connected to the tty. Normally this is PART_IN, but
* when writing buffer lines to the job it can be another. This makes it
* possible to do "1,5term vim -".
*/
static ch_part_T
get_tty_part(term_T *term)
{
#ifdef UNIX
ch_part_T parts[3] = {PART_IN, PART_OUT, PART_ERR};
int i;
for (i = 0; i < 3; ++i)
{
int fd = term->tl_job->jv_channel->ch_part[parts[i]].ch_fd;
if (mch_isatty(fd))
return parts[i];
}
#endif
return PART_IN;
}
/*
* Write job output "msg[len]" to the vterm.
*/
static void
term_write_job_output(term_T *term, char_u *msg, size_t len)
{
VTerm *vterm = term->tl_vterm;
size_t prevlen = vterm_output_get_buffer_current(vterm);
vterm_input_write(vterm, (char *)msg, len);
/* flush vterm buffer when vterm responded to control sequence */
if (prevlen != vterm_output_get_buffer_current(vterm))
{
char buf[KEY_BUF_LEN];
size_t curlen = vterm_output_read(vterm, buf, KEY_BUF_LEN);
if (curlen > 0)
channel_send(term->tl_job->jv_channel, get_tty_part(term),
(char_u *)buf, (int)curlen, NULL);
}
/* this invokes the damage callbacks */
vterm_screen_flush_damage(vterm_obtain_screen(vterm));
}
static void
update_cursor(term_T *term, int redraw)
{
if (term->tl_normal_mode)
return;
#ifdef FEAT_GUI
if (term->tl_system)
windgoto(term->tl_cursor_pos.row + term->tl_toprow,
term->tl_cursor_pos.col);
else
#endif
setcursor();
if (redraw)
{
if (term->tl_buffer == curbuf && term->tl_cursor_visible)
cursor_on();
out_flush();