[PATCH v3] fio: introduce utime function

Oleg Babin olegrok at tarantool.org
Tue Jul 9 12:05:21 MSK 2019


From: Oleg Babin <babinoleg at mail.ru>

Closes #4323

@TarantoolBot document
Title: fio.utime

fio.utime (filepath [, atime [, mtime]])
Set access and modification times of a file.
The first argument is the filename, the second argument (atime) is
the access time, and the third argument (mtime) is
the modification time. Both times are provided in seconds since the epoch.
If the modification time is omitted, the access time provided is used;
if both times are omitted, the current time is used.
---

Issue: https://github.com/tarantool/tarantool/issues/4323

Changes in v3:
  - Change coio_utime function signature

Changes in v2:
  - Reworked test 

 src/lib/core/coio_file.c |   8 +++
 src/lib/core/coio_file.h |   1 +
 src/lua/fio.c            |  10 +++-
 src/lua/fio.lua          |  22 +++++++++
 test/app/fio.result      | 104 +++++++++++++++++++++++++++++++++++++--
 test/app/fio.test.lua    |  30 ++++++++++-
 6 files changed, 169 insertions(+), 6 deletions(-)

diff --git a/src/lib/core/coio_file.c b/src/lib/core/coio_file.c
index 3359f42bc..62388344e 100644
--- a/src/lib/core/coio_file.c
+++ b/src/lib/core/coio_file.c
@@ -631,3 +631,11 @@ coio_copyfile(const char *source, const char *dest)
 	eio_req *req = eio_custom(coio_do_copyfile, 0, coio_complete, &eio);
 	return coio_wait_done(req, &eio);
 }
+
+int
+coio_utime(const char *pathname, double atime, double mtime)
+{
+	INIT_COEIO_FILE(eio);
+	eio_req *req = eio_utime(pathname, atime, mtime, 0, coio_complete, &eio);
+	return coio_wait_done(req, &eio);
+}
diff --git a/src/lib/core/coio_file.h b/src/lib/core/coio_file.h
index f2112ceed..ac7b1aacf 100644
--- a/src/lib/core/coio_file.h
+++ b/src/lib/core/coio_file.h
@@ -84,6 +84,7 @@ int	coio_tempdir(char *path, size_t path_len);
 
 int	coio_readdir(const char *path, char **buf);
 int	coio_copyfile(const char *source, const char *dest);
+int	coio_utime(const char *pathname, double atime, double mtime);
 #if defined(__cplusplus)
 } /* extern "C" */
 #endif /* defined(__cplusplus) */
diff --git a/src/lua/fio.c b/src/lua/fio.c
index 806f4256b..55fa66762 100644
--- a/src/lua/fio.c
+++ b/src/lua/fio.c
@@ -703,7 +703,14 @@ lbox_fio_copyfile(struct lua_State *L)
 	return lbox_fio_pushbool(L, coio_copyfile(source, dest) == 0);
 }
 
-
+static int
+lbox_fio_utime(struct lua_State *L)
+{
+	const char *pathname = lua_tostring(L, 1);
+	double atime = lua_tonumber(L, 2);
+	double mtime = lua_tonumber(L, 3);
+	return lbox_fio_pushbool(L, coio_utime(pathname, atime, mtime) == 0);
+}
 
 void
 tarantool_lua_fio_init(struct lua_State *L)
@@ -747,6 +754,7 @@ tarantool_lua_fio_init(struct lua_State *L)
 		{ "listdir",		lbox_fio_listdir		},
 		{ "fstat",		lbox_fio_fstat			},
 		{ "copyfile",		lbox_fio_copyfile,		},
+		{ "utime",		lbox_fio_utime			},
 		{ NULL,			NULL				}
 	};
 	luaL_register(L, NULL, internal_methods);
diff --git a/src/lua/fio.lua b/src/lua/fio.lua
index ba8c47ec0..321ae8b2d 100644
--- a/src/lua/fio.lua
+++ b/src/lua/fio.lua
@@ -3,6 +3,7 @@
 local fio = require('fio')
 local ffi = require('ffi')
 local buffer = require('buffer')
+local fiber = require('fiber')
 
 ffi.cdef[[
     int umask(int mask);
@@ -468,6 +469,27 @@ fio.copytree = function(from, to)
     return true
 end
 
+local function check_time(time, name)
+    if time ~= nil and type(time) ~= 'number' then
+        error('fio.utime: ' .. name .. ' should be a number', 2)
+    end
+end
+
+fio.utime = function(path, atime, mtime)
+    if type(path) ~= 'string' then
+        error('Usage: fio.utime(filepath[, atime[, mtime]])')
+    end
+
+    check_time(atime, 'atime')
+    check_time(mtime, 'mtime')
+
+    local current_time = fiber.time()
+    atime = atime or current_time
+    mtime = mtime or atime
+
+    return internal.utime(path, atime, mtime)
+end
+
 fio.path = {}
 fio.path.is_file = function(filename)
     local fs = fio.stat(filename)
diff --git a/test/app/fio.result b/test/app/fio.result
index 8819e39fa..34f58d6bc 100644
--- a/test/app/fio.result
+++ b/test/app/fio.result
@@ -4,6 +4,9 @@ fio = require 'fio'
 ffi = require 'ffi'
 ---
 ...
+fiber = require 'fiber'
+---
+...
 buffer = require 'buffer'
 ---
 ...
@@ -1045,6 +1048,103 @@ fh:close()
 ---
 - true
 ...
+-- test utime
+test_run:cmd("push filter '(.builtin/.*.lua):[0-9]+' to '\\1'")
+---
+- true
+...
+fh = fio.open('newfile', {'O_RDWR','O_CREAT'})
+---
+...
+current_time = math.floor(fiber.time())
+---
+...
+fiber_time = fiber.time
+---
+...
+fiber.time = function() return current_time end
+---
+...
+fio.utime('newfile', 0, 0)
+---
+- true
+...
+fh:stat().atime == 0
+---
+- true
+...
+fh:stat().mtime == 0
+---
+- true
+...
+fio.utime('newfile', 1, 2)
+---
+- true
+...
+fh:stat().atime == 1
+---
+- true
+...
+fh:stat().mtime == 2
+---
+- true
+...
+fio.utime('newfile', 3)
+---
+- true
+...
+fh:stat().atime == 3
+---
+- true
+...
+fh:stat().mtime == 3
+---
+- true
+...
+fio.utime('newfile')
+---
+- true
+...
+fh:stat().atime == current_time
+---
+- true
+...
+fh:stat().mtime == current_time
+---
+- true
+...
+fio.utime(nil)
+---
+- error: 'builtin/fio.lua: Usage: fio.utime(filepath[, atime[, mtime]])'
+...
+fio.utime('newfile', 'string')
+---
+- error: 'builtin/fio.lua: fio.utime: atime should be a number'
+...
+fio.utime('newfile', 1, 'string')
+---
+- error: 'builtin/fio.lua: fio.utime: mtime should be a number'
+...
+fh:close()
+---
+- true
+...
+fio.unlink('newfile')
+---
+- true
+...
+fh = nil
+---
+...
+current_time = nil
+---
+...
+fiber.time = fiber_time
+---
+...
+fiber_time = nil
+---
+...
 -- gh-2924
 -- fio.path.exists lexists is_file, etc
 --
@@ -1279,10 +1379,6 @@ fio.rmdir(tmpdir)
 --
 -- gh-3580: Check that error messages are descriptive enough.
 --
-test_run:cmd("push filter '(.builtin/.*.lua):[0-9]+' to '\\1'")
----
-- true
-...
 fh1:seek(nil, 'a')
 ---
 - error: 'builtin/fio.lua: fio.seek(): unknown whence: a'
diff --git a/test/app/fio.test.lua b/test/app/fio.test.lua
index 6c0d2f478..be735e4f3 100644
--- a/test/app/fio.test.lua
+++ b/test/app/fio.test.lua
@@ -1,5 +1,6 @@
 fio = require 'fio'
 ffi = require 'ffi'
+fiber = require 'fiber'
 buffer = require 'buffer'
 test_run = require('test_run').new()
 -- umask
@@ -341,6 +342,34 @@ fh:read(64)
 buf:recycle()
 fh:close()
 
+-- test utime
+test_run:cmd("push filter '(.builtin/.*.lua):[0-9]+' to '\\1'")
+fh = fio.open('newfile', {'O_RDWR','O_CREAT'})
+current_time = math.floor(fiber.time())
+fiber_time = fiber.time
+fiber.time = function() return current_time end
+fio.utime('newfile', 0, 0)
+fh:stat().atime == 0
+fh:stat().mtime == 0
+fio.utime('newfile', 1, 2)
+fh:stat().atime == 1
+fh:stat().mtime == 2
+fio.utime('newfile', 3)
+fh:stat().atime == 3
+fh:stat().mtime == 3
+fio.utime('newfile')
+fh:stat().atime == current_time
+fh:stat().mtime == current_time
+fio.utime(nil)
+fio.utime('newfile', 'string')
+fio.utime('newfile', 1, 'string')
+fh:close()
+fio.unlink('newfile')
+fh = nil
+current_time = nil
+fiber.time = fiber_time
+fiber_time = nil
+
 -- gh-2924
 -- fio.path.exists lexists is_file, etc
 --
@@ -423,7 +452,6 @@ fio.rmdir(tmpdir)
 --
 -- gh-3580: Check that error messages are descriptive enough.
 --
-test_run:cmd("push filter '(.builtin/.*.lua):[0-9]+' to '\\1'")
 fh1:seek(nil, 'a')
 fio.open(nil)
 fio.open(tmp1, {'A'}, tonumber('0777', 8))
-- 
2.21.0




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