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| author | wtchang%redhat.com <devnull@localhost> | 2005-01-25 22:26:04 +0000 |
|---|---|---|
| committer | wtchang%redhat.com <devnull@localhost> | 2005-01-25 22:26:04 +0000 |
| commit | 296697fab02e2004bb44f97b77d73fa183135486 (patch) | |
| tree | b3249651a28f572ff197b67aa89fc404c692f977 | |
| parent | 695b707f70a35545f5e81c85373c13a9d3445ed3 (diff) | |
| download | nspr-hg-296697fab02e2004bb44f97b77d73fa183135486.tar.gz | |
Bugzilla Bug 277514: added an environment variable NSPR_OS2_NO_HIRES_TIMER
that a user can set to disable the use of high-resolution timer
DosTmrQueryTime(). The patch is contributed by Michael Kaply
<mkaply@us.ibm.com>. r=wtc.
Tag: NSPRPUB_PRE_4_2_CLIENT_BRANCH
| -rw-r--r-- | pr/src/md/os2/os2inrval.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/pr/src/md/os2/os2inrval.c b/pr/src/md/os2/os2inrval.c index aa928ed3..4006f5f2 100644 --- a/pr/src/md/os2/os2inrval.c +++ b/pr/src/md/os2/os2inrval.c @@ -50,8 +50,17 @@ PRInt32 _os2_highMask = 0; void _PR_MD_INTERVAL_INIT() { - ULONG timerFreq = 0; /* OS/2 high-resolution timer frequency in Hz */ - APIRET rc = DosTmrQueryFreq(&timerFreq); + char *envp; + ULONG timerFreq; + APIRET rc; + + if ((envp = getenv("NSPR_OS2_NO_HIRES_TIMER")) != NULL) { + if (atoi(envp) == 1) + return; + } + + timerFreq = 0; /* OS/2 high-resolution timer frequency in Hz */ + rc = DosTmrQueryFreq(&timerFreq); if (NO_ERROR == rc) { useHighResTimer = PR_TRUE; PR_ASSERT(timerFreq != 0); |