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#ifndef MP_OSDEP_THREADS_H_
#define MP_OSDEP_THREADS_H_
#include <pthread.h>
#include <inttypes.h>
// Helper to reduce boiler plate.
int mpthread_mutex_init_recursive(pthread_mutex_t *mutex);
// Set thread name (for debuggers).
void mpthread_set_name(const char *name);
int mp_ptwrap_check(const char *file, int line, int res);
int mp_ptwrap_mutex_init(const char *file, int line, pthread_mutex_t *m,
const pthread_mutexattr_t *attr);
#ifdef MP_PTHREAD_DEBUG
// pthread debugging wrappers. Technically, this is undefined behavior, because
// you are not supposed to define any symbols that clash with reserved names.
// Other than that, they should be fine.
// Note: mpv normally never checks pthread error return values of certain
// functions that should never fail. It does so because these cases would
// be undefined behavior anyway (such as double-frees etc.). However,
// since there are no good pthread debugging tools, these wrappers are
// provided for the sake of debugging. They crash on unexpected errors.
//
// Technically, pthread_cond/mutex_init() can fail with ENOMEM. We don't
// really respect this for normal/recursive mutex types, as due to the
// existence of static initializers, no sane implementation could actually
// require allocating memory.
#define MP_PTWRAP(fn, ...) \
mp_ptwrap_check(__FILE__, __LINE__, (fn)(__VA_ARGS__))
// ISO C defines that all standard functions can be macros, except undef'ing
// them is allowed and must make the "real" definitions available. (Whatever.)
#undef pthread_cond_init
#undef pthread_cond_destroy
#undef pthread_cond_broadcast
#undef pthread_cond_signal
#undef pthread_cond_wait
#undef pthread_cond_timedwait
#undef pthread_detach
#undef pthread_join
#undef pthread_mutex_destroy
#undef pthread_mutex_lock
#undef pthread_mutex_unlock
#define pthread_cond_init(...) MP_PTWRAP(pthread_cond_init, __VA_ARGS__)
#define pthread_cond_destroy(...) MP_PTWRAP(pthread_cond_destroy, __VA_ARGS__)
#define pthread_cond_broadcast(...) MP_PTWRAP(pthread_cond_broadcast, __VA_ARGS__)
#define pthread_cond_signal(...) MP_PTWRAP(pthread_cond_signal, __VA_ARGS__)
#define pthread_cond_wait(...) MP_PTWRAP(pthread_cond_wait, __VA_ARGS__)
#define pthread_cond_timedwait(...) MP_PTWRAP(pthread_cond_timedwait, __VA_ARGS__)
#define pthread_detach(...) MP_PTWRAP(pthread_detach, __VA_ARGS__)
#define pthread_join(...) MP_PTWRAP(pthread_join, __VA_ARGS__)
#define pthread_mutex_destroy(...) MP_PTWRAP(pthread_mutex_destroy, __VA_ARGS__)
#define pthread_mutex_lock(...) MP_PTWRAP(pthread_mutex_lock, __VA_ARGS__)
#define pthread_mutex_unlock(...) MP_PTWRAP(pthread_mutex_unlock, __VA_ARGS__)
#define pthread_mutex_init(...) \
mp_ptwrap_mutex_init(__FILE__, __LINE__, __VA_ARGS__)
#endif
#endif
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