static inline short verifyBuffer()

in src/main/c/org_apache_activemq_artemis_nativo_jlibaio_LibaioContext.c [276:295]

• 16 lines of code
• 3 McCabe index (conditional complexity)

static inline short verifyBuffer(int alignment) {
    pthread_mutex_lock(&oneMegaMutex);

    if (oneMegaBuffer == 0) {
       #ifdef DEBUG
          fprintf (stdout, "oneMegaBuffer %ld\n", (long) oneMegaBuffer);
       #endif
       if (posix_memalign(&oneMegaBuffer, alignment, ONE_MEGA) != 0) {
            fprintf(stderr, "Could not allocate the 1 Mega Buffer for initializing files\n");
            pthread_mutex_unlock(&oneMegaMutex);
            return -1;
       }
        memset(oneMegaBuffer, 0, ONE_MEGA);
    }

    pthread_mutex_unlock(&oneMegaMutex);

    return 0;

}