From 1e4c33b1e845e49f9e2d6eb61154e785edb42a37 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Thu, 2 Sep 2004 17:55:16 +0000
Subject: [PATCH] Fix getrusage() emulation on Windows. Magnus Hagander
---
src/port/getrusage.c | 43 ++++++++++++++++++++++++++++++++++++++-----
1 file changed, 38 insertions(+), 5 deletions(-)
diff --git a/src/port/getrusage.c b/src/port/getrusage.c
index 1ef199ed02e..c2ffa848d34 100644
--- a/src/port/getrusage.c
+++ b/src/port/getrusage.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/port/getrusage.c,v 1.6 2004/08/29 04:13:12 momjian Exp $
+ * $PostgreSQL: pgsql/src/port/getrusage.c,v 1.7 2004/09/02 17:55:16 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -26,6 +26,7 @@
* solaris_sparc
* svr4
* hpux 9.*
+ * win32
* which currently is all the supported platforms that don't have a
* native version of getrusage(). So, if configure decides to compile
* this file at all, we just use this version unconditionally.
@@ -35,9 +36,39 @@ int
getrusage(int who, struct rusage * rusage)
{
#ifdef WIN32
- if (rusage)
- memset(rusage, 0, sizeof(rusage));
-#else
+
+ FILETIME starttime;
+ FILETIME exittime;
+ FILETIME kerneltime;
+ FILETIME usertime;
+ ULARGE_INTEGER li;
+
+ if (rusage == (struct rusage *)NULL)
+ {
+ errno = EFAULT;
+ return -1;
+ }
+ memset(rusage, 0, sizeof(struct rusage));
+ if (GetProcessTimes(GetCurrentProcess(),
+ &starttime, &exittime, &kerneltime, &usertime) == 0)
+ {
+ _dosmaperr(GetLastError());
+ return -1;
+ }
+
+ /* Convert FILETIMEs (0.1 us) to struct timeval */
+ memcpy(&li, &kerneltime, sizeof(FILETIME));
+ li.QuadPart /= 10L; /* Convert to microseconds */
+ rusage->ru_stime.tv_sec = li.QuadPart / 1000000L;
+ rusage->ru_stime.tv_usec = li.QuadPart % 1000000L;
+
+ memcpy(&li, &usertime, sizeof(FILETIME));
+ li.QuadPart /= 10L; /* Convert to microseconds */
+ rusage->ru_utime.tv_sec = li.QuadPart / 1000000L;
+ rusage->ru_utime.tv_usec = li.QuadPart % 1000000L;
+
+#else /* all but WIN32 */
+
struct tms tms;
int tick_rate = CLK_TCK; /* ticks per second */
clock_t u,
@@ -73,6 +104,8 @@ getrusage(int who, struct rusage * rusage)
rusage->ru_utime.tv_usec = TICK_TO_USEC(u, tick_rate);
rusage->ru_stime.tv_sec = TICK_TO_SEC(s, tick_rate);
rusage->ru_stime.tv_usec = TICK_TO_USEC(u, tick_rate);
-#endif
+
+#endif /* WIN32 */
+
return 0;
}
--
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