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Remove cmd_list and old stuff.

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This commit is contained in:
Nicholas Marriott
2026-06-30 21:50:26 +01:00
parent 186f51b7ee
commit a9cff084c0
5 changed files with 24 additions and 324 deletions
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107
cmd-queue.c
View File

@@ -48,7 +48,6 @@ struct cmdq_item {
struct client *target_client;
enum cmdq_type type;
u_int group;
u_int number;
time_t time;
@@ -59,7 +58,6 @@ struct cmdq_item {
struct cmd_find_state source;
struct cmd_find_state target;
struct cmd_list *cmdlist;
struct cmd *cmd;
struct cmd_invoke_state *invoke_state;
@@ -457,8 +455,8 @@ cmdq_remove(struct cmdq_item *item)
{
if (item->client != NULL)
server_client_unref(item->client);
if (item->cmdlist != NULL)
cmd_list_free(item->cmdlist);
if (item->cmd != NULL)
cmd_free(item->cmd);
if (item->invoke_state != NULL)
cmd_invoke_state_free(item->invoke_state);
cmdq_free_state(item->state);
@@ -469,91 +467,28 @@ cmdq_remove(struct cmdq_item *item)
free(item);
}
/* Remove all subsequent items that match this item's group. */
static void
cmdq_remove_group(struct cmdq_item *item)
{
struct cmdq_item *this, *next;
if (item->group == 0)
return;
this = TAILQ_NEXT(item, entry);
while (this != NULL) {
next = TAILQ_NEXT(this, entry);
if (this->group == item->group)
cmdq_remove(this);
this = next;
}
}
/* Empty command callback. */
static enum cmd_retval
cmdq_empty_command(__unused struct cmdq_item *item, __unused void *data)
{
return (CMD_RETURN_NORMAL);
}
/* Get a command for the command queue. */
struct cmdq_item *
cmdq_get_command(struct cmd_list *cmdlist, struct cmdq_state *state)
{
struct cmdq_item *item, *first = NULL, *last = NULL;
struct cmd *cmd;
const struct cmd_entry *entry;
int created = 0;
if ((cmd = cmd_list_first(cmdlist)) == NULL)
return (cmdq_get_callback(cmdq_empty_command, NULL));
if (state == NULL) {
state = cmdq_new_state(NULL, NULL, 0);
created = 1;
}
while (cmd != NULL) {
entry = cmd_get_entry(cmd);
item = xcalloc(1, sizeof *item);
xasprintf(&item->name, "[%s/%p]", entry->name, item);
item->type = CMDQ_COMMAND;
item->group = cmd_get_group(cmd);
item->state = cmdq_link_state(state);
item->cmdlist = cmdlist;
item->cmd = cmd;
cmdlist->references++;
log_debug("%s: %s group %u", __func__, item->name, item->group);
if (first == NULL)
first = item;
if (last != NULL)
last->next = item;
last = item;
cmd = cmd_list_next(cmd);
}
if (created)
cmdq_free_state(state);
return (first);
}
/* Get a single command for command queue with invoke state. */
struct cmdq_item *
cmdq_get_one_command(struct cmd *cmd, struct cmdq_state *state,
struct cmd_invoke_state *invoke_state)
{
struct cmd_list *cmdlist;
struct cmdq_item *item;
const struct cmd_entry *entry = cmd_get_entry(cmd);
cmdlist = cmd_list_new();
cmd_list_append(cmdlist, cmd);
item = xcalloc(1, sizeof *item);
xasprintf(&item->name, "[%s/%p]", entry->name, item);
item->type = CMDQ_COMMAND;
item->cmd = cmd;
item = cmdq_get_command(cmdlist, state);
cmd_list_free(cmdlist);
item->invoke_state = cmd_invoke_state_add_ref(invoke_state);
if (state == NULL)
item->state = cmdq_new_state(NULL, NULL, 0);
else
item->state = cmdq_link_state(state);
if (invoke_state != NULL)
item->invoke_state = cmd_invoke_state_add_ref(invoke_state);
log_debug("%s: %s", __func__, item->name);
return (item);
}
@@ -566,7 +501,6 @@ cmdq_get_invoke(struct cmd_invoke_state *invoke_state, struct cmdq_state *state)
item = xcalloc(1, sizeof *item);
xasprintf(&item->name, "[invoke/%p]", item);
item->type = CMDQ_INVOKE;
item->group = 0;
if (state == NULL)
item->state = cmdq_new_state(NULL, NULL, 0);
else
@@ -650,7 +584,7 @@ cmdq_fire_command(struct cmdq_item *item)
cmdq_add_message(item);
if (log_get_level() > 1) {
tmp = cmd_print(cmd);
log_debug("%s %s: (%u) %s", __func__, name, item->group, tmp);
log_debug("%s %s: %s", __func__, name, tmp);
free(tmp);
}
@@ -729,7 +663,6 @@ cmdq_get_callback1(const char *name, cmdq_cb cb, void *data)
xasprintf(&item->name, "[%s/%p]", name, item);
item->type = CMDQ_CALLBACK;
item->group = 0;
item->state = cmdq_new_state(NULL, NULL, 0);
item->cb = cb;
@@ -814,12 +747,6 @@ cmdq_next(struct client *c)
if (item->invoke_state != NULL)
cmd_invoke_result(item->invoke_state, retval);
/*
* If a command returns an error, remove any
* subsequent commands in the same group.
*/
if (retval == CMD_RETURN_ERROR)
cmdq_remove_group(item);
break;
case CMDQ_CALLBACK:
retval = cmdq_fire_callback(item);

197
cmd.c
View File

@@ -220,18 +220,11 @@ const struct cmd_entry *cmd_table[] = {
struct cmd {
const struct cmd_entry *entry;
struct args *args;
u_int group;
char *file;
u_int line;
int parse_flags;
TAILQ_ENTRY(cmd) qentry;
};
TAILQ_HEAD(cmds, cmd);
/* Next group number for new command list. */
static u_int cmd_list_next_group = 1;
/* Log an argument vector. */
void printflike(3, 4)
@@ -402,13 +395,6 @@ cmd_get_args(struct cmd *cmd)
return (cmd->args);
}
/* Get group for command. */
u_int
cmd_get_group(struct cmd *cmd)
{
return (cmd->group);
}
/* Get file and line for command. */
void
cmd_get_source(struct cmd *cmd, const char **file, u_int *line)
@@ -559,22 +545,6 @@ cmd_free(struct cmd *cmd)
}
/* Copy a command. */
struct cmd *
cmd_copy(struct cmd *cmd, int argc, char **argv)
{
struct cmd *new_cmd;
new_cmd = xcalloc(1, sizeof *new_cmd);
new_cmd->entry = cmd->entry;
new_cmd->args = args_copy(cmd->args, argc, argv);
if (cmd->file != NULL)
new_cmd->file = xstrdup(cmd->file);
new_cmd->line = cmd->line;
return (new_cmd);
}
/* Get a command as a string. */
char *
cmd_print(struct cmd *cmd)
@@ -592,173 +562,6 @@ cmd_print(struct cmd *cmd)
}
/* Create a new command list. */
struct cmd_list *
cmd_list_new(void)
{
struct cmd_list *cmdlist;
cmdlist = xcalloc(1, sizeof *cmdlist);
cmdlist->references = 1;
cmdlist->group = cmd_list_next_group++;
cmdlist->list = xcalloc(1, sizeof *cmdlist->list);
TAILQ_INIT(cmdlist->list);
return (cmdlist);
}
/* Append a command to a command list. */
void
cmd_list_append(struct cmd_list *cmdlist, struct cmd *cmd)
{
cmd->group = cmdlist->group;
TAILQ_INSERT_TAIL(cmdlist->list, cmd, qentry);
}
/* Append all commands from one list to another. */
void
cmd_list_append_all(struct cmd_list *cmdlist, struct cmd_list *from)
{
struct cmd *cmd;
TAILQ_FOREACH(cmd, from->list, qentry)
cmd->group = cmdlist->group;
TAILQ_CONCAT(cmdlist->list, from->list, qentry);
}
/* Move all commands from one command list to another. */
void
cmd_list_move(struct cmd_list *cmdlist, struct cmd_list *from)
{
TAILQ_CONCAT(cmdlist->list, from->list, qentry);
cmdlist->group = cmd_list_next_group++;
}
/* Free a command list. */
void
cmd_list_free(struct cmd_list *cmdlist)
{
struct cmd *cmd, *cmd1;
if (--cmdlist->references != 0)
return;
TAILQ_FOREACH_SAFE(cmd, cmdlist->list, qentry, cmd1) {
TAILQ_REMOVE(cmdlist->list, cmd, qentry);
cmd_free(cmd);
}
free(cmdlist->list);
free(cmdlist);
}
/* Copy a command list, expanding %s in arguments. */
struct cmd_list *
cmd_list_copy(const struct cmd_list *cmdlist, int argc, char **argv)
{
struct cmd *cmd;
struct cmd_list *new_cmdlist;
struct cmd *new_cmd;
u_int group = cmdlist->group;
char *s;
s = cmd_list_print(cmdlist, 0);
log_debug("%s: %s", __func__, s);
free(s);
new_cmdlist = cmd_list_new();
TAILQ_FOREACH(cmd, cmdlist->list, qentry) {
if (cmd->group != group) {
new_cmdlist->group = cmd_list_next_group++;
group = cmd->group;
}
new_cmd = cmd_copy(cmd, argc, argv);
cmd_list_append(new_cmdlist, new_cmd);
}
s = cmd_list_print(new_cmdlist, 0);
log_debug("%s: %s", __func__, s);
free(s);
return (new_cmdlist);
}
/* Get a command list as a string. */
char *
cmd_list_print(const struct cmd_list *cmdlist, int flags)
{
struct cmd *cmd, *next;
char *buf, *this;
size_t len;
const char *separator;
int escaped = flags & CMD_LIST_PRINT_ESCAPED;
int no_groups = flags & CMD_LIST_PRINT_NO_GROUPS;
const char *single_separator = escaped ? " \\; " : " ; ";
const char *double_separator = escaped ? " \\;\\; " : " ;; ";
len = 1;
buf = xcalloc(1, len);
TAILQ_FOREACH(cmd, cmdlist->list, qentry) {
this = cmd_print(cmd);
len += strlen(this) + 6;
buf = xrealloc(buf, len);
strlcat(buf, this, len);
next = TAILQ_NEXT(cmd, qentry);
if (next != NULL) {
if (!no_groups && cmd->group != next->group)
separator = double_separator;
else
separator = single_separator;
strlcat(buf, separator, len);
}
free(this);
}
return (buf);
}
/* Get first command in list. */
struct cmd *
cmd_list_first(struct cmd_list *cmdlist)
{
return (TAILQ_FIRST(cmdlist->list));
}
/* Get next command in list. */
struct cmd *
cmd_list_next(struct cmd *cmd)
{
return (TAILQ_NEXT(cmd, qentry));
}
/* Do all of the commands in this command list have this flag? */
int
cmd_list_all_have(struct cmd_list *cmdlist, int flag)
{
struct cmd *cmd;
TAILQ_FOREACH(cmd, cmdlist->list, qentry) {
if (~cmd->entry->flags & flag)
return (0);
}
return (1);
}
/* Do any of the commands in this command list have this flag? */
int
cmd_list_any_have(struct cmd_list *cmdlist, int flag)
{
struct cmd *cmd;
TAILQ_FOREACH(cmd, cmdlist->list, qentry) {
if (cmd->entry->flags & flag)
return (1);
}
return (0);
}
/* Adjust current mouse position for a pane. */
int
cmd_mouse_at(struct window_pane *wp, struct mouse_event *m, u_int *xp,

18
fuzz/cmd-parse-fuzzer.c
View File

@@ -36,7 +36,8 @@ int
LLVMFuzzerTestOneInput(const u_char *data, size_t size)
{
struct cmd_parse_input pi;
struct cmd_parse_result *pr;
struct cmd_parse_tree *tree;
char *cause = NULL;
if (size > 2048 || size == 0)
return 0;
@@ -44,17 +45,10 @@ LLVMFuzzerTestOneInput(const u_char *data, size_t size)
memset(&pi, 0, sizeof pi);
pi.flags = CMD_PARSE_QUIET;
pr = cmd_parse_from_buffer(data, size, &pi);
switch (pr->status) {
case CMD_PARSE_SUCCESS:
cmd_list_free(pr->cmdlist);
break;
case CMD_PARSE_ERROR:
free(pr->error);
break;
default:
break;
}
tree = cmd_parse_from_buffer(data, size, &pi, &cause);
if (tree != NULL)
cmd_parse_free(tree);
free(cause);
return 0;
}

3
tmux-parser.h
View File

@@ -28,8 +28,7 @@
*
* The parser builds syntax only. It does not expand formats, environment
* variables, or ~, does not evaluate %if/%elif, does not expand aliases, and
* does not build struct cmd or struct cmd_list. Those are execution-time
* operations.
* does not build struct cmd. That is an execution-time operation.
*
* Command failure scope is represented by CMD_PARSE_SEQUENCE: if an invoked
* command or assignment fails, the invoker skips the remaining children of

23
tmux.h
View File

@@ -1924,13 +1924,6 @@ struct cmd_find_state {
#define CMD_FIND_EXACT_WINDOW 0x20
#define CMD_FIND_CANFAIL 0x40
/* List of commands. */
struct cmd_list {
int references;
u_int group;
struct cmds *list;
};
/* Command return values. */
enum cmd_retval {
CMD_RETURN_ERROR = -1,
@@ -2956,27 +2949,12 @@ char *cmd_stringify_argv(int, char **);
char *cmd_get_alias(const char *);
const struct cmd_entry *cmd_get_entry(struct cmd *);
struct args *cmd_get_args(struct cmd *);
u_int cmd_get_group(struct cmd *);
void cmd_get_source(struct cmd *, const char **, u_int *);
int cmd_get_parse_flags(struct cmd *);
struct cmd *cmd_parse(struct args_value *, u_int, const char *, u_int, int,
char **);
struct cmd *cmd_copy(struct cmd *, int, char **);
void cmd_free(struct cmd *);
char *cmd_print(struct cmd *);
struct cmd_list *cmd_list_new(void);
struct cmd_list *cmd_list_copy(const struct cmd_list *, int, char **);
void cmd_list_append(struct cmd_list *, struct cmd *);
void cmd_list_append_all(struct cmd_list *, struct cmd_list *);
void cmd_list_move(struct cmd_list *, struct cmd_list *);
void cmd_list_free(struct cmd_list *);
#define CMD_LIST_PRINT_ESCAPED 0x1
#define CMD_LIST_PRINT_NO_GROUPS 0x2
char *cmd_list_print(const struct cmd_list *, int);
struct cmd *cmd_list_first(struct cmd_list *);
struct cmd *cmd_list_next(struct cmd *);
int cmd_list_all_have(struct cmd_list *, int);
int cmd_list_any_have(struct cmd_list *, int);
int cmd_mouse_at(struct window_pane *, struct mouse_event *,
u_int *, u_int *, int);
struct winlink *cmd_mouse_window(struct mouse_event *, struct session **);
@@ -3018,7 +2996,6 @@ struct cmd_find_state *cmdq_get_source(struct cmdq_item *);
struct key_event *cmdq_get_event(struct cmdq_item *);
struct cmd_find_state *cmdq_get_current(struct cmdq_item *);
int cmdq_get_flags(struct cmdq_item *);
struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmdq_state *);
struct cmdq_item *cmdq_get_one_command(struct cmd *, struct cmdq_state *,
struct cmd_invoke_state *);
struct cmdq_item *cmdq_get_invoke(struct cmd_invoke_state *,