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 #ifdef GPR_POSIX_STAT
20
21 #include <errno.h>
22 #include <sys/stat.h>
23 #include <sys/types.h>
24 #include <unistd.h>
25
26 #include <grpc/support/log.h>
27
28 #include "src/core/lib/gprpp/stat.h"
29
30 namespace grpc_core {
31
GetFileModificationTime(const char * filename,time_t * timestamp)32 absl::Status GetFileModificationTime(const char* filename, time_t* timestamp) {
33 GPR_ASSERT(filename != nullptr);
34 GPR_ASSERT(timestamp != nullptr);
35 struct stat buf;
36 if (stat(filename, &buf) != 0) {
37 const char* error_msg = strerror(errno);
38 gpr_log(GPR_ERROR, "stat failed for filename %s with error %s.", filename,
39 error_msg);
40 return absl::Status(absl::StatusCode::kInternal, error_msg);
41 }
42 // Last file/directory modification time.
43 *timestamp = buf.st_mtime;
44 return absl::OkStatus();
45 }
46
47 } // namespace grpc_core
48
49 #endif // GPR_POSIX_STAT
50