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8146879: Add option for handling existing log files in UL

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Reviewed-by: dsamersoff, gziemski, rehn
This commit is contained in:
Marcus Larsson 2016-04-11 12:22:09 +02:00
parent 1afb9e9427
commit 8b2f63bd2b
15 changed files with 368 additions and 26 deletions
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15
hotspot/src/os/linux/vm/os_linux.cpp
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@ -6008,7 +6008,22 @@ bool os::start_debugging(char *buf, int buflen) {
return yes;
}
static inline struct timespec get_mtime(const char* filename) {
struct stat st;
int ret = os::stat(filename, &st);
assert(ret == 0, "failed to stat() file '%s': %s", filename, strerror(errno));
return st.st_mtim;
}
int os::compare_file_modified_times(const char* file1, const char* file2) {
struct timespec filetime1 = get_mtime(file1);
struct timespec filetime2 = get_mtime(file2);
int diff = filetime1.tv_sec - filetime2.tv_sec;
if (diff == 0) {
return filetime1.tv_nsec - filetime2.tv_nsec;
}
return diff;
}
/////////////// Unit tests ///////////////