diff options
| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2015-01-08 11:11:30 +0000 |
|---|---|---|
| committer | Amit Shah <amit.shah@redhat.com> | 2015-01-16 13:06:17 +0530 |
| commit | e1a8c9b67fc97d293211773edcae9e8e2f3367ab (patch) | |
| tree | be5d5c5c0e26818e16489bb0d12f0d3fc7cca5a5 /include | |
| parent | 8580b06498a5dffe554e7ac627726b1d7775c591 (diff) | |
socket shutdown
Add QEMUFile interface to allow a socket to be 'shut down' - i.e. any
reads/writes will fail (and any blocking read/write will be woken).
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/migration/qemu-file.h | 10 | ||||
| -rw-r--r-- | include/qemu/sockets.h | 7 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h index 401676bf4d..d843c0010c 100644 --- a/include/migration/qemu-file.h +++ b/include/migration/qemu-file.h @@ -84,6 +84,14 @@ typedef size_t (QEMURamSaveFunc)(QEMUFile *f, void *opaque, size_t size, int *bytes_sent); +/* + * Stop any read or write (depending on flags) on the underlying + * transport on the QEMUFile. + * Existing blocking reads/writes must be woken + * Returns 0 on success, -err on error + */ +typedef int (QEMUFileShutdownFunc)(void *opaque, bool rd, bool wr); + typedef struct QEMUFileOps { QEMUFilePutBufferFunc *put_buffer; QEMUFileGetBufferFunc *get_buffer; @@ -94,6 +102,7 @@ typedef struct QEMUFileOps { QEMURamHookFunc *after_ram_iterate; QEMURamHookFunc *hook_ram_load; QEMURamSaveFunc *save_page; + QEMUFileShutdownFunc *shut_down; } QEMUFileOps; struct QEMUSizedBuffer { @@ -177,6 +186,7 @@ void qemu_file_set_rate_limit(QEMUFile *f, int64_t new_rate); int64_t qemu_file_get_rate_limit(QEMUFile *f); int qemu_file_get_error(QEMUFile *f); void qemu_file_set_error(QEMUFile *f, int ret); +int qemu_file_shutdown(QEMUFile *f); void qemu_fflush(QEMUFile *f); static inline void qemu_put_be64s(QEMUFile *f, const uint64_t *pv) diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h index f47dae614a..7992ece72a 100644 --- a/include/qemu/sockets.h +++ b/include/qemu/sockets.h @@ -44,6 +44,13 @@ int socket_set_fast_reuse(int fd); int send_all(int fd, const void *buf, int len1); int recv_all(int fd, void *buf, int len1, bool single_read); +#ifdef WIN32 +/* Windows has different names for the same constants with the same values */ +#define SHUT_RD 0 +#define SHUT_WR 1 +#define SHUT_RDWR 2 +#endif + /* callback function for nonblocking connect * valid fd on success, negative error code on failure */ |