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common: remove buf_init(), add BUF_INIT and buf_move()

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Add a BUF_INIT macro, which makes it easier to initialize a struct buf
to an empty string (without a heap allocation).

Add buf_move() to move the contents of one struct buf to another (the
source is reset to BUF_INIT, analogous to C++ move-assignment).

Use buf_reset() instead of directly calling `free(s->buf)` since the
internal buf may not always be allocated by malloc() now.
This commit is contained in:
John Lindgren 2024-04-14 14:20:57 -04:00 • committed by Johan Malm
parent 343918dee0
commit 0573f16693
12 changed files with 122 additions and 90 deletions
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5
src/action.c
View file

@ -706,12 +706,11 @@ actions_run(struct view *activator, struct server *server,
break;
case ACTION_TYPE_EXECUTE:
{
struct buf cmd;
buf_init(&cmd);
struct buf cmd = BUF_INIT;
buf_add(&cmd, action_get_str(action, "command", NULL));
buf_expand_tilde(&cmd);
spawn_async_no_shell(cmd.buf);
free(cmd.buf);
buf_reset(&cmd);
}
break;
case ACTION_TYPE_EXIT: