Clean up some #ifdefs.
Only the Mac doesn't have POSIX clocks. (And it still doesn't, a decade
later.)
glibc gained pthread_setname_np in 2.12.
Only the Mac doesn't have prctl.
Change-Id: I218e409f7e133736e15fb68e8a254cdc5799d667
diff --git a/runtime/utils.cc b/runtime/utils.cc
index 7234ec0..be73588 100644
--- a/runtime/utils.cc
+++ b/runtime/utils.cc
@@ -39,17 +39,10 @@
#include "scoped_thread_state_change.h"
#include "utf-inl.h"
-#if !defined(HAVE_POSIX_CLOCKS)
-#include <sys/time.h>
-#endif
-
-#if defined(HAVE_PRCTL)
-#include <sys/prctl.h>
-#endif
-
#if defined(__APPLE__)
#include "AvailabilityMacros.h" // For MAC_OS_X_VERSION_MAX_ALLOWED
#include <sys/syscall.h>
+#include <sys/time.h>
#endif
#include <backtrace/Backtrace.h> // For DumpNativeStack.
@@ -164,11 +157,11 @@
}
uint64_t MilliTime() {
-#if defined(HAVE_POSIX_CLOCKS)
+#if defined(__linux__)
timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000) + now.tv_nsec / UINT64_C(1000000);
-#else
+#else // __APPLE__
timeval now;
gettimeofday(&now, NULL);
return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000) + now.tv_usec / UINT64_C(1000);
@@ -176,11 +169,11 @@
}
uint64_t MicroTime() {
-#if defined(HAVE_POSIX_CLOCKS)
+#if defined(__linux__)
timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000) + now.tv_nsec / UINT64_C(1000);
-#else
+#else // __APPLE__
timeval now;
gettimeofday(&now, NULL);
return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000) + now.tv_usec;
@@ -188,11 +181,11 @@
}
uint64_t NanoTime() {
-#if defined(HAVE_POSIX_CLOCKS)
+#if defined(__linux__)
timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000000) + now.tv_nsec;
-#else
+#else // __APPLE__
timeval now;
gettimeofday(&now, NULL);
return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000000) + now.tv_usec * UINT64_C(1000);
@@ -200,11 +193,11 @@
}
uint64_t ThreadCpuNanoTime() {
-#if defined(HAVE_POSIX_CLOCKS)
+#if defined(__linux__)
timespec now;
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &now);
return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000000) + now.tv_nsec;
-#else
+#else // __APPLE__
UNIMPLEMENTED(WARNING);
return -1;
#endif
@@ -1057,21 +1050,17 @@
} else {
s = thread_name + len - 15;
}
-#if defined(__BIONIC__)
+#if defined(__linux__)
// pthread_setname_np fails rather than truncating long strings.
- char buf[16]; // MAX_TASK_COMM_LEN=16 is hard-coded into bionic
+ char buf[16]; // MAX_TASK_COMM_LEN=16 is hard-coded in the kernel.
strncpy(buf, s, sizeof(buf)-1);
buf[sizeof(buf)-1] = '\0';
errno = pthread_setname_np(pthread_self(), buf);
if (errno != 0) {
PLOG(WARNING) << "Unable to set the name of current thread to '" << buf << "'";
}
-#elif defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+#else // __APPLE__
pthread_setname_np(thread_name);
-#elif defined(HAVE_PRCTL)
- prctl(PR_SET_NAME, (unsigned long) s, 0, 0, 0); // NOLINT (unsigned long)
-#else
- UNIMPLEMENTED(WARNING) << thread_name;
#endif
}