Rename snapshot_daemon to checkpoint_daemon

Follow up #2496

src/box/CMakeLists.txt

@@ -5,7 +5,7 @@ lua_source(lua_sources lua/load_cfg.lua)
 lua_source(lua_sources lua/schema.lua)
 lua_source(lua_sources lua/tuple.lua)
 lua_source(lua_sources lua/session.lua)
-lua_source(lua_sources lua/snapshot_daemon.lua)
+lua_source(lua_sources lua/checkpoint_daemon.lua)
 lua_source(lua_sources lua/net_box.lua)
 lua_source(lua_sources lua/upgrade.lua)
 lua_source(lua_sources lua/console.lua)

src/box/lua/snapshot_daemon.lua → src/box/lua/checkpoint_daemon.lua

--- snapshot_daemon.lua (internal file)
+-- checkpoint_daemon.lua (internal file)
 
 local log = require 'log'
 local fiber = require 'fiber'
@@ -8,7 +8,7 @@ local errno = require 'errno'
 local digest = require 'digest'
 local pickle = require 'pickle'
 
-local PREFIX = 'snapshot_daemon'
+local PREFIX = 'checkpoint_daemon'
 
 local daemon = {
     checkpoint_interval = 0;

src/box/lua/init.c

@@ -61,7 +61,7 @@ extern char session_lua[],
 	tuple_lua[],
 	schema_lua[],
 	load_cfg_lua[],
-	snapshot_daemon_lua[],
+	checkpoint_daemon_lua[],
 	net_box_lua[],
 	upgrade_lua[],
 	console_lua[];
@@ -70,7 +70,7 @@ static const char *lua_sources[] = {
 	"box/session", session_lua,
 	"box/tuple", tuple_lua,
 	"box/schema", schema_lua,
-	"box/snapshot_daemon", snapshot_daemon_lua,
+	"box/checkpoint_daemon", checkpoint_daemon_lua,
 	"box/upgrade", upgrade_lua,
 	"box/net_box", net_box_lua,
 	"box/console", console_lua,

src/box/lua/load_cfg.lua

@@ -143,7 +143,7 @@ local dynamic_cfg = {
     read_only               = private.cfg_set_read_only,
     vinyl_timeout           = private.cfg_update_vinyl_options,
     checkpoint_count        = private.cfg_set_checkpoint_count,
-    checkpoint_interval     = private.snapshot_daemon.set_checkpoint_interval,
+    checkpoint_interval     = private.checkpoint_daemon.set_checkpoint_interval,
     -- do nothing, affects new replicas, which query this value on start
     wal_dir_rescan_delay    = function() end,
     custom_proc_title       = function()

test/xlog/snapshot_daemon.result → test/xlog/checkpoint_daemon.result

@@ -25,7 +25,7 @@ PERIOD = 0.03
 if jit.os ~= 'Linux' then PERIOD = 1.5 end
 ---
 ...
-space = box.schema.space.create('snapshot_daemon')
+space = box.schema.space.create('checkpoint_daemon')
 ---
 ...
 index = space:create_index('pk', { type = 'tree', parts = { 1, 'unsigned' }})
@@ -96,7 +96,7 @@ box.cfg{checkpoint_interval = 3600 * 4, checkpoint_count = 4 }
 space:drop()
 ---
 ...
-daemon = box.internal.snapshot_daemon
+daemon = box.internal.checkpoint_daemon
 ---
 ...
 -- stop daemon

test/xlog/snapshot_daemon.test.lua → test/xlog/checkpoint_daemon.test.lua

@@ -12,7 +12,7 @@ PERIOD = 0.03
 if jit.os ~= 'Linux' then PERIOD = 1.5 end
 
 
-space = box.schema.space.create('snapshot_daemon')
+space = box.schema.space.create('checkpoint_daemon')
 index = space:create_index('pk', { type = 'tree', parts = { 1, 'unsigned' }})
 
 
@@ -57,7 +57,7 @@ fio.basename(snaps[1], '.snap') >= fio.basename(xlogs[1], '.xlog')
 box.cfg{checkpoint_interval = 3600 * 4, checkpoint_count = 4 }
 space:drop()
 
-daemon = box.internal.snapshot_daemon
+daemon = box.internal.checkpoint_daemon
 -- stop daemon
 box.cfg{ checkpoint_interval = 0 }
 -- wait daemon to stop