Add uv_hrtime()

src/bun.js/bindings/uv-posix-polyfills.cpp

@@ -12,4 +12,22 @@ uv_pid_t uv_os_getppid()
     return getppid();
 }
 
+#if OS(LINUX)
+#include <time.h>
+
+uint64_t uv_hrtime()
+{
+    timespec ts;
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+    return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
+}
+
+#elif OS(DARWIN)
+#include <mach/mach_time.h>
+uint64_t uv_hrtime()
+{
+    return mach_absolute_time();
+}
+#endif
+
 #endif

src/bun.js/bindings/uv-posix-polyfills.h

@@ -12,4 +12,7 @@ extern "C" BUN_EXPORT uv_pid_t uv_os_getpid();
 // Returns the parent process ID.
 extern "C" BUN_EXPORT uv_pid_t uv_os_getppid();
 
+// Returns the current high-resolution time in nanoseconds.
+extern "C" BUN_EXPORT uint64_t uv_hrtime();
+
 #endif

src/linker.lds

@@ -6,6 +6,7 @@ BUN_1.1 {
 
 	uv_os_getpid;
 	uv_os_getppid;
+	uv_hrtime;
 
 	extern "C++" {
 		v8::*;

src/symbols.txt

@@ -216,3 +216,4 @@ __ZNK2v88Function7GetNameEv
 __ZNK2v85Value10IsFunctionEv
 _uv_os_getpid
 _uv_os_getppid
+_uv_hrtime