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global.c
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global.c
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
// This library
#include "global.h"
// System dependencies
#ifdef _WIN32
#include <windows.h>
#else
#include <pthread.h>
#endif
#include <assert.h>
#ifdef _WIN32
// TODO: static_assert be available with C11. See Issue #482
// static_assert(sizeof(k4a_init_once_t) == sizeof(INIT_ONCE),
// "Windows INIT_ONCE size doesn't match generic k4a_init_once_t size");
static BOOL CALLBACK InitGlobalFunction(PINIT_ONCE InitOnce, PVOID Parameter, PVOID *lpContext) {
UNREFERENCED_PARAMETER(InitOnce);
UNREFERENCED_PARAMETER(lpContext);
k4a_init_once_function_t *callback = (k4a_init_once_function_t *)Parameter;
callback();
return TRUE;
}
#else
// TODO: static_assert be available with C11. See Issue #482
// static_assert(sizeof(k4a_init_once_t) == sizeof(pthread_once_t),
// "Linux pthread_once_t size doesn't match generic k4a_init_once_t size");
#endif
void global_init_once(k4a_init_once_t *init_once, k4a_init_once_function_t *init_function) {
#ifdef _WIN32
if(InitOnceExecuteOnce((INIT_ONCE *)init_once, InitGlobalFunction, (void *)init_function, NULL)) {
return;
}
#else
if(0 == pthread_once((pthread_once_t *)init_once, init_function)) {
return;
}
#endif
assert(0);
return;
}