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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.166.238; envelope-from=prvs=9352c01a6b=bin.meng@windriver.com; helo=mx0a-0064b401.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @windriver.com) X-ZM-MESSAGEID: 1671446246841100005 Content-Type: text/plain; charset="utf-8" From: Guohuai Shi Use _getmaxstdio() to set the fd limit on Windows. Signed-off-by: Guohuai Shi Signed-off-by: Bin Meng --- (no changes since v1) hw/9pfs/9p.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index 2497a06f43..b55d0bc400 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -4396,11 +4396,28 @@ void v9fs_reset(V9fsState *s) =20 static void __attribute__((__constructor__)) v9fs_set_fd_limit(void) { + int rlim_cur; + int ret; + +#ifndef CONFIG_WIN32 struct rlimit rlim; - if (getrlimit(RLIMIT_NOFILE, &rlim) < 0) { + ret =3D getrlimit(RLIMIT_NOFILE, &rlim); + rlim_cur =3D rlim.rlim_cur; +#else + /* + * On Windows host, _getmaxstdio() actually returns the number of max + * open files at the stdio level. It *may* be smaller than the number + * of open files by open() or CreateFile(). + */ + ret =3D _getmaxstdio(); + rlim_cur =3D ret; +#endif + + if (ret < 0) { error_report("Failed to get the resource limit"); exit(1); } - open_fd_hw =3D rlim.rlim_cur - MIN(400, rlim.rlim_cur / 3); - open_fd_rc =3D rlim.rlim_cur / 2; + + open_fd_hw =3D rlim_cur - MIN(400, rlim_cur / 3); + open_fd_rc =3D rlim_cur / 2; } --=20 2.25.1