diff options
Diffstat (limited to 'savevm.c')
| -rw-r--r-- | savevm.c | 62 |
1 files changed, 46 insertions, 16 deletions
@@ -169,6 +169,7 @@ struct QEMUFile { QEMUFileCloseFunc *close; QEMUFileRateLimit *rate_limit; QEMUFileSetRateLimit *set_rate_limit; + QEMUFileGetRateLimit *get_rate_limit; void *opaque; int is_write; @@ -264,9 +265,11 @@ QEMUFile *qemu_popen(FILE *stdio_file, const char *mode) s->stdio_file = stdio_file; if(mode[0] == 'r') { - s->file = qemu_fopen_ops(s, NULL, stdio_get_buffer, stdio_pclose, NULL, NULL); + s->file = qemu_fopen_ops(s, NULL, stdio_get_buffer, stdio_pclose, + NULL, NULL, NULL); } else { - s->file = qemu_fopen_ops(s, stdio_put_buffer, NULL, stdio_pclose, NULL, NULL); + s->file = qemu_fopen_ops(s, stdio_put_buffer, NULL, stdio_pclose, + NULL, NULL, NULL); } return s->file; } @@ -311,9 +314,11 @@ QEMUFile *qemu_fdopen(int fd, const char *mode) goto fail; if(mode[0] == 'r') { - s->file = qemu_fopen_ops(s, NULL, stdio_get_buffer, stdio_fclose, NULL, NULL); + s->file = qemu_fopen_ops(s, NULL, stdio_get_buffer, stdio_fclose, + NULL, NULL, NULL); } else { - s->file = qemu_fopen_ops(s, stdio_put_buffer, NULL, stdio_fclose, NULL, NULL); + s->file = qemu_fopen_ops(s, stdio_put_buffer, NULL, stdio_fclose, + NULL, NULL, NULL); } return s->file; @@ -327,7 +332,8 @@ QEMUFile *qemu_fopen_socket(int fd) QEMUFileSocket *s = qemu_mallocz(sizeof(QEMUFileSocket)); s->fd = fd; - s->file = qemu_fopen_ops(s, NULL, socket_get_buffer, socket_close, NULL, NULL); + s->file = qemu_fopen_ops(s, NULL, socket_get_buffer, socket_close, + NULL, NULL, NULL); return s->file; } @@ -363,11 +369,13 @@ QEMUFile *qemu_fopen(const char *filename, const char *mode) s->stdio_file = fopen(filename, mode); if (!s->stdio_file) goto fail; - + if(mode[0] == 'w') { - s->file = qemu_fopen_ops(s, file_put_buffer, NULL, stdio_fclose, NULL, NULL); + s->file = qemu_fopen_ops(s, file_put_buffer, NULL, stdio_fclose, + NULL, NULL, NULL); } else { - s->file = qemu_fopen_ops(s, NULL, file_get_buffer, stdio_fclose, NULL, NULL); + s->file = qemu_fopen_ops(s, NULL, file_get_buffer, stdio_fclose, + NULL, NULL, NULL); } return s->file; fail: @@ -395,15 +403,17 @@ static int bdrv_fclose(void *opaque) static QEMUFile *qemu_fopen_bdrv(BlockDriverState *bs, int is_writable) { if (is_writable) - return qemu_fopen_ops(bs, block_put_buffer, NULL, bdrv_fclose, NULL, NULL); - return qemu_fopen_ops(bs, NULL, block_get_buffer, bdrv_fclose, NULL, NULL); + return qemu_fopen_ops(bs, block_put_buffer, NULL, bdrv_fclose, + NULL, NULL, NULL); + return qemu_fopen_ops(bs, NULL, block_get_buffer, bdrv_fclose, NULL, NULL, NULL); } QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer, QEMUFileGetBufferFunc *get_buffer, QEMUFileCloseFunc *close, QEMUFileRateLimit *rate_limit, - QEMUFileSetRateLimit *set_rate_limit) + QEMUFileSetRateLimit *set_rate_limit, + QEMUFileGetRateLimit *get_rate_limit) { QEMUFile *f; @@ -415,6 +425,7 @@ QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer, f->close = close; f->rate_limit = rate_limit; f->set_rate_limit = set_rate_limit; + f->get_rate_limit = get_rate_limit; f->is_write = 0; return f; @@ -592,6 +603,14 @@ int qemu_file_rate_limit(QEMUFile *f) return 0; } +size_t qemu_file_get_rate_limit(QEMUFile *f) +{ + if (f->get_rate_limit) + return f->get_rate_limit(f->opaque); + + return 0; +} + size_t qemu_file_set_rate_limit(QEMUFile *f, size_t new_rate) { /* any failed or completed migration keeps its state to allow probing of @@ -964,6 +983,7 @@ typedef struct SaveStateEntry { int instance_id; int version_id; int section_id; + SaveSetParamsHandler *set_params; SaveLiveStateHandler *save_live_state; SaveStateHandler *save_state; LoadStateHandler *load_state; @@ -971,6 +991,7 @@ typedef struct SaveStateEntry { void *opaque; } SaveStateEntry; + static QTAILQ_HEAD(savevm_handlers, SaveStateEntry) savevm_handlers = QTAILQ_HEAD_INITIALIZER(savevm_handlers); static int global_section_id; @@ -996,6 +1017,7 @@ static int calculate_new_instance_id(const char *idstr) int register_savevm_live(const char *idstr, int instance_id, int version_id, + SaveSetParamsHandler *set_params, SaveLiveStateHandler *save_live_state, SaveStateHandler *save_state, LoadStateHandler *load_state, @@ -1003,10 +1025,11 @@ int register_savevm_live(const char *idstr, { SaveStateEntry *se; - se = qemu_malloc(sizeof(SaveStateEntry)); + se = qemu_mallocz(sizeof(SaveStateEntry)); pstrcpy(se->idstr, sizeof(se->idstr), idstr); se->version_id = version_id; se->section_id = global_section_id++; + se->set_params = set_params; se->save_live_state = save_live_state; se->save_state = save_state; se->load_state = load_state; @@ -1031,7 +1054,7 @@ int register_savevm(const char *idstr, void *opaque) { return register_savevm_live(idstr, instance_id, version_id, - NULL, save_state, load_state, opaque); + NULL, NULL, save_state, load_state, opaque); } void unregister_savevm(const char *idstr, void *opaque) @@ -1051,7 +1074,7 @@ int vmstate_register(int instance_id, const VMStateDescription *vmsd, { SaveStateEntry *se; - se = qemu_malloc(sizeof(SaveStateEntry)); + se = qemu_mallocz(sizeof(SaveStateEntry)); pstrcpy(se->idstr, sizeof(se->idstr), vmsd->name); se->version_id = vmsd->version_id; se->section_id = global_section_id++; @@ -1213,10 +1236,17 @@ static void vmstate_save(QEMUFile *f, SaveStateEntry *se) #define QEMU_VM_SECTION_END 0x03 #define QEMU_VM_SECTION_FULL 0x04 -int qemu_savevm_state_begin(QEMUFile *f) +int qemu_savevm_state_begin(QEMUFile *f, int blk_enable, int shared) { SaveStateEntry *se; + QTAILQ_FOREACH(se, &savevm_handlers, entry) { + if(se->set_params == NULL) { + continue; + } + se->set_params(blk_enable, shared, se->opaque); + } + qemu_put_be32(f, QEMU_VM_FILE_MAGIC); qemu_put_be32(f, QEMU_VM_FILE_VERSION); @@ -1326,7 +1356,7 @@ int qemu_savevm_state(QEMUFile *f) bdrv_flush_all(); - ret = qemu_savevm_state_begin(f); + ret = qemu_savevm_state_begin(f, 0, 0); if (ret < 0) goto out; |