1 //
2 // Copyright 2020 gRPC authors.
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 // http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16
17 #include <grpc/support/port_platform.h>
18
19 #include <string>
20
21 // IWYU pragma: no_include <bits/struct_stat.h>
22
23 #include "absl/status/status.h"
24
25 #ifdef GPR_POSIX_STAT
26
27 #include <errno.h>
28 #include <sys/stat.h>
29
30 #include <grpc/support/log.h>
31
32 #include "src/core/lib/gprpp/stat.h"
33 #include "src/core/lib/gprpp/strerror.h"
34
35 namespace grpc_core {
36
GetFileModificationTime(const char * filename,time_t * timestamp)37 absl::Status GetFileModificationTime(const char* filename, time_t* timestamp) {
38 GPR_ASSERT(filename != nullptr);
39 GPR_ASSERT(timestamp != nullptr);
40 struct stat buf;
41 if (stat(filename, &buf) != 0) {
42 std::string error_msg = StrError(errno);
43 gpr_log(GPR_ERROR, "stat failed for filename %s with error %s.", filename,
44 error_msg.c_str());
45 return absl::Status(absl::StatusCode::kInternal, error_msg);
46 }
47 // Last file/directory modification time.
48 *timestamp = buf.st_mtime;
49 return absl::OkStatus();
50 }
51
52 } // namespace grpc_core
53
54 #endif // GPR_POSIX_STAT
55