#include "Internal.h"
#include "Codemap.h"
#include <stdlib.h>

CgeMutex *CgeMutexNew(int *result) {
    CgeMutex *mutex;
    int code = CGE_THREAD_EOOM;

    mutex = malloc(sizeof(*mutex));
    if (mutex && !InitializeCriticalSectionAndSpinCount(&mutex->handle, 0x400)) {
        code = errorToErrorCode(GetLastError());
        free(mutex);
        mutex = NULL;
    }

    if (result)
        *result = code;

    return mutex;
}

void CgeMutexFree(CgeMutex *mutex) {
    if (!mutex)
        return;
    DeleteCriticalSection(&mutex->handle);
    free(mutex);
}

int CgeMutexLock(CgeMutex *mutex, int *result) {
    (void)result;
    EnterCriticalSection(&mutex->handle);
    return 1;
}

int CgeMutexUnlock(CgeMutex *mutex, int *result) {
    (void)result;
    LeaveCriticalSection(&mutex->handle);
    return 1;
}

int CgeMutexTryLock(CgeMutex *mutex, int *result) {
    if (TryEnterCriticalSection(&mutex->handle))
        return 1;

    if (result)
        *result = CGE_THREAD_EBUSY;

    return 0;
}