diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/util/compatfd.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/util/compatfd.c')
-rw-r--r-- | qemu/util/compatfd.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/qemu/util/compatfd.c b/qemu/util/compatfd.c deleted file mode 100644 index 9a43042ae..000000000 --- a/qemu/util/compatfd.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * signalfd/eventfd compatibility - * - * Copyright IBM, Corp. 2008 - * - * Authors: - * Anthony Liguori <aliguori@us.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - * Contributions after 2012-01-13 are licensed under the terms of the - * GNU GPL, version 2 or (at your option) any later version. - */ - -#include "qemu/osdep.h" -#include "qemu-common.h" -#include "qemu/compatfd.h" -#include "qemu/thread.h" - -#include <sys/syscall.h> - -struct sigfd_compat_info -{ - sigset_t mask; - int fd; -}; - -static void *sigwait_compat(void *opaque) -{ - struct sigfd_compat_info *info = opaque; - - while (1) { - int sig; - int err; - - err = sigwait(&info->mask, &sig); - if (err != 0) { - if (errno == EINTR) { - continue; - } else { - return NULL; - } - } else { - struct qemu_signalfd_siginfo buffer; - size_t offset = 0; - - memset(&buffer, 0, sizeof(buffer)); - buffer.ssi_signo = sig; - - while (offset < sizeof(buffer)) { - ssize_t len; - - len = write(info->fd, (char *)&buffer + offset, - sizeof(buffer) - offset); - if (len == -1 && errno == EINTR) - continue; - - if (len <= 0) { - return NULL; - } - - offset += len; - } - } - } -} - -static int qemu_signalfd_compat(const sigset_t *mask) -{ - struct sigfd_compat_info *info; - QemuThread thread; - int fds[2]; - - info = malloc(sizeof(*info)); - if (info == NULL) { - errno = ENOMEM; - return -1; - } - - if (pipe(fds) == -1) { - free(info); - return -1; - } - - qemu_set_cloexec(fds[0]); - qemu_set_cloexec(fds[1]); - - memcpy(&info->mask, mask, sizeof(*mask)); - info->fd = fds[1]; - - qemu_thread_create(&thread, "signalfd_compat", sigwait_compat, info, - QEMU_THREAD_DETACHED); - - return fds[0]; -} - -int qemu_signalfd(const sigset_t *mask) -{ -#if defined(CONFIG_SIGNALFD) - int ret; - - ret = syscall(SYS_signalfd, -1, mask, _NSIG / 8); - if (ret != -1) { - qemu_set_cloexec(ret); - return ret; - } -#endif - - return qemu_signalfd_compat(mask); -} |