#include <glib.h>
#include <string.h>
-#include "bluesky.h"
+#include "bluesky-private.h"
+
+int bluesky_verbose = 0;
+
+BlueSkyOptions bluesky_options = {
+ .cache_size = 1024*1024, // Default cache size is 1 GiB
+};
+
+/* Maximum number of threads to use in any particular thread pool, or -1 for no
+ * limit */
+int bluesky_max_threads = 16;
+
+/* Watermark levels for cache tuning: these control when dirty data is flushed
+ * from cache, when clean data is dropped from the cache, etc. These values
+ * are measured in blocks, not bytes.
+ *
+ * There are a few relevant levels:
+ * low: Below this point, data is not forced out due to memory pressure
+ * medium: At this point start flushing data to get back below medium
+ * high: Flush data very aggressively (launch extra tasks if needed)
+ */
+int bluesky_watermark_low_dirty = (64 << 20) / BLUESKY_BLOCK_SIZE;
+int bluesky_watermark_medium_dirty = (96 << 20) / BLUESKY_BLOCK_SIZE;
+int bluesky_watermark_high_dirty = (192 << 20) / BLUESKY_BLOCK_SIZE;
+
+int bluesky_watermark_low_total = (64 << 20) / BLUESKY_BLOCK_SIZE;
+int bluesky_watermark_medium_total = (128 << 20) / BLUESKY_BLOCK_SIZE;
+int bluesky_watermark_high_total = (256 << 20) / BLUESKY_BLOCK_SIZE;
+
+/* Environment variables that can be used to initialize settings. */
+static struct {
+ const char *env;
+ int *option;
+} option_table[] = {
+ {"BLUESKY_OPT_SYNC_STORES", &bluesky_options.synchronous_stores},
+ {"BLUESKY_OPT_WRITETHROUGH", &bluesky_options.writethrough_cache},
+ {"BLUESKY_OPT_SYNC_INODE_FETCH", &bluesky_options.sync_inode_fetches},
+ {"BLUESKY_OPT_SYNC_FRONTENDS", &bluesky_options.sync_frontends},
+ {"BLUESKY_CACHE_SIZE", &bluesky_options.cache_size},
+ {NULL, NULL}
+};
/* BlueSky library initialization. */
void bluesky_store_init_s3(void);
+void bluesky_store_init_kv(void);
+void bluesky_store_init_multi(void);
+void bluesky_store_init_bdb(void);
+void bluesky_store_init_simple(void);
/* Initialize the BlueSky library and dependent libraries. */
void bluesky_init(void)
g_thread_init(NULL);
bluesky_crypt_init();
+ for (int i = 0; option_table[i].env != NULL; i++) {
+ const char *val = getenv(option_table[i].env);
+ if (val != NULL) {
+ int v = atoi(val);
+ g_print("Option %s set to %d\n", option_table[i].env, v);
+ *option_table[i].option = atoi(val);
+ }
+ }
+
bluesky_store_init();
+ bluesky_store_init_kv();
bluesky_store_init_s3();
+ bluesky_store_init_multi();
+ bluesky_store_init_bdb();
+ bluesky_store_init_simple();
}