#include <intrin.h>

Include dependency graph for threadSafeInit.c:

Functions
int _stdcall	SwitchToThread (void)

void	_Init_thread_header (volatile int *ptss)

void	_Init_thread_footer (volatile int *ptss)

void	_Init_thread_abort (volatile int *ptss)

Variables
unsigned int	_tls_array

unsigned int	_tls_index

long	_Init_global_epoch

long	_Init_thread_epoch

Function Documentation

◆ _Init_thread_abort()

void _Init_thread_abort ( volatile int * ptss )

Definition at line 56 of file threadSafeInit.c.

{
    /* Abort the initialization */
    _InterlockedAnd((volatile long*)ptss, 0);
}

◆ _Init_thread_footer()

void _Init_thread_footer ( volatile int * ptss )

Definition at line 49 of file threadSafeInit.c.

{
    /* Initialization is complete */
    *ptss = _InterlockedIncrement(&_Init_global_epoch);
}

◆ _Init_thread_header()

void _Init_thread_header ( volatile int * ptss )

Definition at line 29 of file threadSafeInit.c.

{
    while (1)
    {
        /* Try to acquire the first initialization lock */
        int oldTss = _InterlockedCompareExchange((long*)ptss, -1, 0);
        if (oldTss == -1)
        {
            /* Busy, wait for the other thread to do the initialization */
            SwitchToThread();
            continue;
        }
 
        /* Either we acquired the lock and the caller will do the initializaion
           or the initialization is complete and the caller will skip it */
        break;
    }
}

◆ SwitchToThread()

int _stdcall SwitchToThread ( void )

Definition at line 448 of file thread.c.

{
    return NtYieldExecution() != STATUS_NO_YIELD_PERFORMED;
}

Referenced by _Init_thread_header().

Variable Documentation

◆ _Init_global_epoch

long _Init_global_epoch

Definition at line 14 of file threadSafeInit.c.

Referenced by _Init_thread_footer().

◆ _Init_thread_epoch

long _Init_thread_epoch

Definition at line 15 of file threadSafeInit.c.

◆ _tls_array

unsigned int _tls_array

Definition at line 12 of file threadSafeInit.c.

◆ _tls_index

unsigned int _tls_index

Definition at line 13 of file threadSafeInit.c.

Functions

Variables