dpdk-fm10k/lib/librte_eal/windows/include/pthread.h
Thomas Monjalon a083f8cc77 eal: move OS-specific sub-directories
Since the kernel modules are moved to kernel/ directory,
there is no need anymore for the sub-directory eal/ in
linux/, freebsd/ and windows/.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: David Marchand <david.marchand@redhat.com>
2020-03-31 13:08:55 +02:00

94 lines
2.7 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Intel Corporation
*/
#ifndef _PTHREAD_H_
#define _PTHREAD_H_
/**
* This file is required to support the common code in eal_common_proc.c,
* eal_common_thread.c and common\include\rte_per_lcore.h as Microsoft libc
* does not contain pthread.h. This may be removed in future releases.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <windows.h>
#define PTHREAD_BARRIER_SERIAL_THREAD TRUE
/* defining pthread_t type on Windows since there is no in Microsoft libc*/
typedef uintptr_t pthread_t;
/* defining pthread_attr_t type on Windows since there is no in Microsoft libc*/
typedef void *pthread_attr_t;
typedef SYNCHRONIZATION_BARRIER pthread_barrier_t;
#define pthread_barrier_init(barrier, attr, count) \
InitializeSynchronizationBarrier(barrier, count, -1)
#define pthread_barrier_wait(barrier) EnterSynchronizationBarrier(barrier, \
SYNCHRONIZATION_BARRIER_FLAGS_BLOCK_ONLY)
#define pthread_barrier_destroy(barrier) \
DeleteSynchronizationBarrier(barrier)
#define pthread_cancel(thread) TerminateThread((HANDLE) thread, 0)
/* pthread function overrides */
#define pthread_self() \
((pthread_t)GetCurrentThreadId())
#define pthread_setaffinity_np(thread, size, cpuset) \
eal_set_thread_affinity_mask(thread, (unsigned long *) cpuset)
#define pthread_getaffinity_np(thread, size, cpuset) \
eal_get_thread_affinity_mask(thread, (unsigned long *) cpuset)
#define pthread_create(threadid, threadattr, threadfunc, args) \
eal_create_thread(threadid, threadfunc, args)
static inline int
eal_set_thread_affinity_mask(pthread_t threadid, unsigned long *cpuset)
{
SetThreadAffinityMask((HANDLE) threadid, *cpuset);
return 0;
}
static inline int
eal_get_thread_affinity_mask(pthread_t threadid, unsigned long *cpuset)
{
/* Workaround for the lack of a GetThreadAffinityMask()
*API in Windows
*/
/* obtain previous mask by setting dummy mask */
DWORD dwprevaffinitymask =
SetThreadAffinityMask((HANDLE) threadid, 0x1);
/* set it back! */
SetThreadAffinityMask((HANDLE) threadid, dwprevaffinitymask);
*cpuset = dwprevaffinitymask;
return 0;
}
static inline int
eal_create_thread(void *threadid, void *threadfunc, void *args)
{
HANDLE hThread;
hThread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)threadfunc,
args, 0, (LPDWORD)threadid);
if (hThread) {
SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS);
SetThreadPriority(hThread, THREAD_PRIORITY_TIME_CRITICAL);
}
return ((hThread != NULL) ? 0 : E_FAIL);
}
static inline int
pthread_join(pthread_t thread __attribute__((__unused__)),
void **value_ptr __attribute__((__unused__)))
{
return 0;
}
#ifdef __cplusplus
}
#endif
#endif /* _PTHREAD_H_ */