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7ba9a73840
It's been thirteen years and C++ still hasn't implemented this wonderful simple builtin keyword. In C++23 a solution was provided for making this work in C++ which is libcxx's stdatomic.h. Including that header schleps in literally 253 unique header files!! Many of the header files it needs are libc header files like pthread.h where we need to have the _Atomic() keyword, but since <atomic> depends on pthreads we can't have it include the <stdatomic.h> header that defines _Atomic for C++ users, and instead we simply make the type non-atomic, hoping and praying only C code shall use those internal data structures. This just shows how STL clowns can't be trusted to define the innermost primitives of a language. They should instead be focusing on being the best at algorithms and data structures.
42 lines
980 B
C
42 lines
980 B
C
#ifndef COSMOPOLITAN_LIBC_THREAD_THREADS_H_
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#define COSMOPOLITAN_LIBC_THREAD_THREADS_H_
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COSMOPOLITAN_C_START_
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#if !defined(__cplusplus) && \
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(!(defined(__GNUC__) && __GNUC__ >= 13) || \
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!(defined(__STDC_VERSION__) && __STDC_VERSION__ > 201710L))
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#define thread_local _Thread_local
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#endif
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#define TSS_DTOR_ITERATIONS 4
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enum {
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thrd_success = 0,
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thrd_busy = 1,
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thrd_error = 2,
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thrd_nomem = 3,
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thrd_timedout = 4,
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};
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enum {
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mtx_plain = 0,
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mtx_recursive = 1,
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mtx_timed = 2,
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};
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typedef uintptr_t thrd_t;
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typedef void (*tss_dtor_t)(void *);
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typedef int (*thrd_start_t)(void *);
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typedef uint32_t once_flag;
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void call_once(once_flag *, void (*)(void));
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int thrd_create(thrd_t *, thrd_start_t, void *);
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void thrd_exit(int) wontreturn;
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int thrd_join(thrd_t, int *);
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int thrd_detach(thrd_t);
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int thrd_equal(thrd_t, thrd_t);
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thrd_t thrd_current(void);
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void thrd_yield(void);
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_THREAD_THREADS_H_ */
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