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Resuming work to move all DB access off the main thread.

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Cory McWilliams
2024-06-10 11:45:20 -04:00
parent 9497d7cf64
commit 9d35b4bdfb
6 changed files with 1191 additions and 23 deletions
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1062
run.log Normal file
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1
src/main.c
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@@ -381,6 +381,7 @@ static int _tf_run_task(const tf_run_args_t* args, int index)
tf_ssb_import(tf_task_get_ssb(task), "core", "apps");
}
}
tf_ssb_set_main_thread(tf_task_get_ssb(task), true);
if (tf_task_execute(task, args->script))
{
tf_task_run(task);

38
src/ssb.db.c
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@@ -635,6 +635,44 @@ bool tf_ssb_db_blob_get(tf_ssb_t* ssb, const char* id, uint8_t** out_blob, size_
return result;
}
typedef struct _blob_get_async_t
{
tf_ssb_t* ssb;
char id[k_blob_id_len];
tf_ssb_db_blob_get_callback_t* callback;
void* user_data;
bool out_found;
uint8_t* out_data;
size_t out_size;
} blob_get_async_t;
static void _tf_ssb_db_blob_get_async_work(tf_ssb_t* ssb, void* user_data)
{
blob_get_async_t* async = user_data;
async->out_found = tf_ssb_db_blob_get(ssb, async->id, &async->out_data, &async->out_size);
}
static void _tf_ssb_db_blob_get_async_after_work(tf_ssb_t* ssb, int status, void* user_data)
{
blob_get_async_t* async = user_data;
async->callback(async->out_found, async->out_data, async->out_size, async->user_data);
tf_free(async->out_data);
tf_free(async);
}
void tf_ssb_db_blob_get_async(tf_ssb_t* ssb, const char* id, tf_ssb_db_blob_get_callback_t* callback, void* user_data)
{
blob_get_async_t* async = tf_malloc(sizeof(blob_get_async_t));
*async = (blob_get_async_t) {
.ssb = ssb,
.callback = callback,
.user_data = user_data,
};
snprintf(async->id, sizeof(async->id), "%s", id);
tf_ssb_run_work(ssb, _tf_ssb_db_blob_get_async_work, _tf_ssb_db_blob_get_async_after_work, async);
}
typedef struct _blob_store_work_t
{
const uint8_t* blob;

16
src/ssb.db.h
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@@ -55,6 +55,22 @@ bool tf_ssb_db_blob_has(tf_ssb_t* ssb, const char* id);
*/
bool tf_ssb_db_blob_get(tf_ssb_t* ssb, const char* id, uint8_t** out_blob, size_t* out_size);
/**
** A function called when a blob is retrieved from the database.
** @param id The blob identifier.
** @param user_data The user data.
*/
typedef void(tf_ssb_db_blob_get_callback_t)(bool found, const uint8_t* data, size_t size, void* user_data);
/**
** Retrieve a blob from the database asynchronously.
** @param ssb The SSB instance.
** @param id The blob identifier.
** @param callback Callback called with the result.
** @param user_data The user data.
*/
void tf_ssb_db_blob_get_async(tf_ssb_t* ssb, const char* id, tf_ssb_db_blob_get_callback_t* callback, void* user_data);
/**
** A function called when a message is stored in the database.
** @param id The message identifier.

34
src/ssb.js.c
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@@ -581,6 +581,29 @@ static JSValue _tf_ssb_appendMessageWithIdentity(JSContext* context, JSValueCons
return result;
}
typedef struct _blob_get_t
{
JSContext* context;
JSValue promise[2];
} blob_get_t;
static void _tf_ssb_blobGet_callback(bool found, const uint8_t* data, size_t size, void* user_data)
{
blob_get_t* get = user_data;
JSValue result = JS_UNDEFINED;
if (found)
{
result = JS_NewArrayBufferCopy(get->context, data, size);
}
JSValue error = JS_Call(get->context, get->promise[0], JS_UNDEFINED, 1, &result);
JS_FreeValue(get->context, result);
JS_FreeValue(get->context, get->promise[0]);
JS_FreeValue(get->context, get->promise[1]);
tf_util_report_error(get->context, error);
JS_FreeValue(get->context, error);
tf_free(get);
}
static JSValue _tf_ssb_blobGet(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
{
JSValue result = JS_NULL;
@@ -588,13 +611,10 @@ static JSValue _tf_ssb_blobGet(JSContext* context, JSValueConst this_val, int ar
if (ssb)
{
const char* id = JS_ToCString(context, argv[0]);
uint8_t* blob = NULL;
size_t size = 0;
if (tf_ssb_db_blob_get(ssb, id, &blob, &size))
{
result = JS_NewArrayBufferCopy(context, blob, size);
tf_free(blob);
}
blob_get_t* get = tf_malloc(sizeof(blob_get_t));
*get = (blob_get_t) { .context = context };
result = JS_NewPromiseCapability(context, get->promise);
tf_ssb_db_blob_get_async(ssb, id, _tf_ssb_blobGet_callback, get);
JS_FreeCString(context, id);
}
return result;

63
src/ssb.rpc.c
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@@ -480,6 +480,45 @@ static void _tf_ssb_rpc_connection_blobs_get(tf_ssb_connection_t* connection, co
JS_FreeValue(context, message);
}
typedef struct _blob_create_wants_work_t
{
tf_ssb_connection_t* connection;
char blob_id[k_blob_id_len];
bool out_result;
int64_t size;
size_t out_size;
} blob_create_wants_work_t;
static void _tf_ssb_rpc_connection_blobs_create_wants_work(tf_ssb_connection_t* connection, void* user_data)
{
blob_create_wants_work_t* work = user_data;
tf_ssb_t* ssb = tf_ssb_connection_get_ssb(work->connection);
work->out_result = tf_ssb_db_blob_get(ssb, work->blob_id, NULL, &work->out_size);
}
static void _tf_ssb_rpc_connection_blobs_create_wants_after_work(tf_ssb_connection_t* connection, int result, void* user_data)
{
blob_create_wants_work_t* work = user_data;
tf_ssb_t* ssb = tf_ssb_connection_get_ssb(work->connection);
tf_ssb_blob_wants_t* blob_wants = tf_ssb_connection_get_blob_wants_state(connection);
JSContext* context = tf_ssb_get_context(ssb);
if (work->out_result)
{
JSValue message = JS_NewObject(context);
JS_SetPropertyStr(context, message, work->blob_id, JS_NewInt64(context, work->out_size));
tf_ssb_connection_rpc_send_json(work->connection, k_ssb_rpc_flag_stream, -blob_wants->request_number, NULL, message, NULL, NULL, NULL);
JS_FreeValue(context, message);
}
else if (work->size == -1LL)
{
JSValue message = JS_NewObject(context);
JS_SetPropertyStr(context, message, work->blob_id, JS_NewInt64(context, -2));
tf_ssb_connection_rpc_send_json(work->connection, k_ssb_rpc_flag_stream, -blob_wants->request_number, NULL, message, NULL, NULL, NULL);
JS_FreeValue(context, message);
}
tf_free(work);
}
static void _tf_ssb_rpc_connection_blobs_createWants_callback(
tf_ssb_connection_t* connection, uint8_t flags, int32_t request_number, JSValue args, const uint8_t* message, size_t size, void* user_data)
{
@@ -489,7 +528,6 @@ static void _tf_ssb_rpc_connection_blobs_createWants_callback(
return;
}
tf_ssb_t* ssb = tf_ssb_connection_get_ssb(connection);
JSContext* context = tf_ssb_connection_get_context(connection);
JSValue name = JS_GetPropertyStr(context, args, "name");
@@ -524,21 +562,14 @@ static void _tf_ssb_rpc_connection_blobs_createWants_callback(
}
if (size < 0)
{
size_t blob_size = 0;
if (tf_ssb_db_blob_get(ssb, blob_id, NULL, &blob_size))
{
JSValue message = JS_NewObject(context);
JS_SetPropertyStr(context, message, blob_id, JS_NewInt64(context, blob_size));
tf_ssb_connection_rpc_send_json(connection, k_ssb_rpc_flag_stream, -blob_wants->request_number, NULL, message, NULL, NULL, NULL);
JS_FreeValue(context, message);
}
else if (size == -1LL)
{
JSValue message = JS_NewObject(context);
JS_SetPropertyStr(context, message, blob_id, JS_NewInt64(context, -2));
tf_ssb_connection_rpc_send_json(connection, k_ssb_rpc_flag_stream, -blob_wants->request_number, NULL, message, NULL, NULL, NULL);
JS_FreeValue(context, message);
}
blob_create_wants_work_t* work = tf_malloc(sizeof(blob_create_wants_work_t));
*work = (blob_create_wants_work_t) {
.connection = connection,
.size = size,
.out_size = -1ULL,
};
snprintf(work->blob_id, sizeof(work->blob_id), "%s", blob_id);
tf_ssb_connection_run_work(connection, _tf_ssb_rpc_connection_blobs_create_wants_work, _tf_ssb_rpc_connection_blobs_create_wants_after_work, work);
}
else
{