[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v13 13/26] libxl_internal: move stream read manipulations to right place
No functional changes and this cleanup will make the later patch called "primary vm suspend/resume/checkpoint code" not too complicated. Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx> Signed-off-by: Changlong Xie <xiecl.fnst@xxxxxxxxxxxxxx> Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx> --- tools/libxl/libxl_internal.h | 132 +++++++++++++++++++++---------------------- 1 file changed, 66 insertions(+), 66 deletions(-) diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h index 83ac20a..c7f9b97 100644 --- a/tools/libxl/libxl_internal.h +++ b/tools/libxl/libxl_internal.h @@ -3035,6 +3035,72 @@ static inline bool libxl__conversion_helper_inuse (const libxl__conversion_helper_state *chs) { return libxl__ev_child_inuse(&chs->child); } +/* State for reading a libxl migration v2 stream */ +typedef struct libxl__stream_read_state libxl__stream_read_state; + +typedef struct libxl__sr_record_buf { + /* private to stream read helper */ + LIBXL_STAILQ_ENTRY(struct libxl__sr_record_buf) entry; + libxl__sr_rec_hdr hdr; + void *body; /* iff hdr.length != 0 */ +} libxl__sr_record_buf; + +struct libxl__stream_read_state { + /* filled by the user */ + libxl__ao *ao; + libxl__domain_create_state *dcs; + int fd; + bool legacy; + bool back_channel; + void (*completion_callback)(libxl__egc *egc, + libxl__stream_read_state *srs, + int rc); + void (*checkpoint_callback)(libxl__egc *egc, + libxl__stream_read_state *srs, + int rc); + /* Private */ + int rc; + bool running; + bool in_checkpoint; + bool sync_teardown; /* Only used to coordinate shutdown on error path. */ + bool in_checkpoint_state; + libxl__save_helper_state shs; + libxl__conversion_helper_state chs; + + /* Main stream-reading data. */ + libxl__datacopier_state dc; /* Only used when reading a record */ + libxl__sr_hdr hdr; + LIBXL_STAILQ_HEAD(, libxl__sr_record_buf) record_queue; /* NOGC */ + enum { + SRS_PHASE_NORMAL, + SRS_PHASE_BUFFERING, + SRS_PHASE_UNBUFFERING, + } phase; + bool recursion_guard; + + /* Only used while actively reading a record from the stream. */ + libxl__sr_record_buf *incoming_record; /* NOGC */ + + /* Both only used when processing an EMULATOR record. */ + libxl__datacopier_state emu_dc; + libxl__carefd *emu_carefd; +}; + +_hidden void libxl__stream_read_init(libxl__stream_read_state *stream); +_hidden void libxl__stream_read_start(libxl__egc *egc, + libxl__stream_read_state *stream); +_hidden void libxl__stream_read_start_checkpoint(libxl__egc *egc, + libxl__stream_read_state *stream); +_hidden void libxl__stream_read_checkpoint_state(libxl__egc *egc, + libxl__stream_read_state *stream); +_hidden void libxl__stream_read_abort(libxl__egc *egc, + libxl__stream_read_state *stream, int rc); +static inline bool +libxl__stream_read_inuse(const libxl__stream_read_state *stream) +{ + return stream->running; +} + /*----- Domain suspend (save) state structure -----*/ /* @@ -3424,72 +3490,6 @@ _hidden int libxl__destroy_qdisk_backend(libxl__gc *gc, uint32_t domid); /*----- Domain creation -----*/ -/* State for manipulating a libxl migration v2 stream */ -typedef struct libxl__stream_read_state libxl__stream_read_state; - -typedef struct libxl__sr_record_buf { - /* private to stream read helper */ - LIBXL_STAILQ_ENTRY(struct libxl__sr_record_buf) entry; - libxl__sr_rec_hdr hdr; - void *body; /* iff hdr.length != 0 */ -} libxl__sr_record_buf; - -struct libxl__stream_read_state { - /* filled by the user */ - libxl__ao *ao; - libxl__domain_create_state *dcs; - int fd; - bool legacy; - bool back_channel; - void (*completion_callback)(libxl__egc *egc, - libxl__stream_read_state *srs, - int rc); - void (*checkpoint_callback)(libxl__egc *egc, - libxl__stream_read_state *srs, - int rc); - /* Private */ - int rc; - bool running; - bool in_checkpoint; - bool sync_teardown; /* Only used to coordinate shutdown on error path. */ - bool in_checkpoint_state; - libxl__save_helper_state shs; - libxl__conversion_helper_state chs; - - /* Main stream-reading data. */ - libxl__datacopier_state dc; /* Only used when reading a record */ - libxl__sr_hdr hdr; - LIBXL_STAILQ_HEAD(, libxl__sr_record_buf) record_queue; /* NOGC */ - enum { - SRS_PHASE_NORMAL, - SRS_PHASE_BUFFERING, - SRS_PHASE_UNBUFFERING, - } phase; - bool recursion_guard; - - /* Only used while actively reading a record from the stream. */ - libxl__sr_record_buf *incoming_record; /* NOGC */ - - /* Both only used when processing an EMULATOR record. */ - libxl__datacopier_state emu_dc; - libxl__carefd *emu_carefd; -}; - -_hidden void libxl__stream_read_init(libxl__stream_read_state *stream); -_hidden void libxl__stream_read_start(libxl__egc *egc, - libxl__stream_read_state *stream); -_hidden void libxl__stream_read_start_checkpoint(libxl__egc *egc, - libxl__stream_read_state *stream); -_hidden void libxl__stream_read_checkpoint_state(libxl__egc *egc, - libxl__stream_read_state *stream); -_hidden void libxl__stream_read_abort(libxl__egc *egc, - libxl__stream_read_state *stream, int rc); -static inline bool -libxl__stream_read_inuse(const libxl__stream_read_state *stream) -{ - return stream->running; -} - struct libxl__domain_create_state { /* filled in by user */ -- 1.9.3 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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