record: Synchronize write to record file

The synchronization code is required to avoid mixing writing
from multiple threads.
Following patches will add this feature.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jonathon Jongsma <jjongsma@redhat.com>
This commit is contained in:
Frediano Ziglio 2017-03-01 22:27:34 +00:00
parent afc4171c98
commit e0a5e4f0d0

View File

@ -30,6 +30,7 @@
struct RedRecord {
FILE *fd;
pthread_mutex_t lock;
unsigned int counter;
};
@ -794,15 +795,17 @@ void red_record_primary_surface_create(RedRecord *record,
{
FILE *fd = record->fd;
pthread_mutex_lock(&record->lock);
fprintf(fd, "%d %d %d %d\n", surface->width, surface->height,
surface->stride, surface->format);
fprintf(fd, "%d %d %d %d\n", surface->position, surface->mouse_mode,
surface->flags, surface->type);
write_binary(fd, "data", line_0 ? abs(surface->stride)*surface->height : 0,
line_0);
pthread_mutex_unlock(&record->lock);
}
void red_record_event(RedRecord *record, int what, uint32_t type)
static void red_record_event_unlocked(RedRecord *record, int what, uint32_t type)
{
red_time_t ts = spice_get_monotonic_time_ns();
// TODO: record the size of the packet in the header. This would make
@ -813,12 +816,20 @@ void red_record_event(RedRecord *record, int what, uint32_t type)
fprintf(record->fd, "event %u %d %u %"PRIu64"\n", record->counter++, what, type, ts);
}
void red_record_event(RedRecord *record, int what, uint32_t type)
{
pthread_mutex_lock(&record->lock);
red_record_event_unlocked(record, what, type);
pthread_mutex_unlock(&record->lock);
}
void red_record_qxl_command(RedRecord *record, RedMemSlotInfo *slots,
QXLCommandExt ext_cmd)
{
FILE *fd = record->fd;
red_record_event(record, 0, ext_cmd.cmd.type);
pthread_mutex_lock(&record->lock);
red_record_event_unlocked(record, 0, ext_cmd.cmd.type);
switch (ext_cmd.cmd.type) {
case QXL_CMD_DRAW:
@ -837,6 +848,7 @@ void red_record_qxl_command(RedRecord *record, RedMemSlotInfo *slots,
red_record_cursor_cmd(fd, slots, ext_cmd.group_id, ext_cmd.cmd.data);
break;
}
pthread_mutex_unlock(&record->lock);
}
/**
@ -900,6 +912,7 @@ RedRecord *red_record_new(const char *filename)
record = g_new(RedRecord, 1);
record->fd = f;
record->counter = 0;
pthread_mutex_init(&record->lock, NULL);
return record;
}
@ -907,6 +920,7 @@ void red_record_free(RedRecord *record)
{
if (record) {
fclose(record->fd);
pthread_mutex_destroy(&record->lock);
g_free(record);
}
}