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LinuxProcess_adjustTime: simplify by not using double

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Does not work with -ffast-math else.
This commit is contained in:
Christian Göttsche 2020-11-23 21:03:52 +01:00 committed by cgzones
parent 95f553b10c
commit 42c842c190
1 changed files with 6 additions and 8 deletions
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14
linux/LinuxProcessList.c
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@ -292,18 +292,16 @@ void ProcessList_delete(ProcessList* pl) {
}
static inline unsigned long long LinuxProcess_adjustTime(unsigned long long t) {
static double jiffy = NAN;
if (isnan(jiffy)) {
static long jiffy = -1;
if (jiffy == -1) {
errno = 0;
long sc_jiffy = sysconf(_SC_CLK_TCK);
if (errno || -1 == sc_jiffy) {
jiffy = NAN;
jiffy = sysconf(_SC_CLK_TCK);
if (errno || -1 == jiffy) {
jiffy = -1;
return t; // Assume 100Hz clock
}
jiffy = sc_jiffy;
}
double jiffytime = 1.0 / jiffy;
return t * jiffytime * 100;
return t * 100 / jiffy;
}
static bool LinuxProcessList_readStatFile(Process* process, const char* dirname, const char* name, char* command, int* commLen) {