Introduce formal policy for APIs that return strings.

This declares that any `const char *` returned from SDL is owned by SDL, and
promises to be valid _at least_ until the next time the event queue runs, or
SDL_Quit() is called, even if the thing that owns the string gets destroyed
or changed before then.

This is noted in the headers as "the SDL_GetStringRule", so this will both be
greppable to find a detailed explaination in docs/README-strings.md and
wikiheaders will automatically turn it into a link we can point at the
appropriate documentation.

Fixes #9902.

(and several FIXMEs, both known and yet-undocumented.)
This commit is contained in:
Ryan C. Gordon 2024-06-01 22:05:21 -04:00
parent b1f3682216
commit e23257307e
51 changed files with 262 additions and 123 deletions

View file

@ -331,8 +331,7 @@ extern SDL_DECLSPEC SDL_Thread *SDLCALL SDL_CreateThreadWithPropertiesRuntime(SD
/**
* Get the thread name as it was specified in SDL_CreateThread().
*
* This is internal memory, not to be freed by the caller, and remains valid
* until the specified thread is cleaned up by SDL_WaitThread().
* The returned string follows the SDL_GetStringRule.
*
* \param thread the thread to query
* \returns a pointer to a UTF-8 string that names the specified thread, or