static Bool
GuestInfoProcData(const char *pathName, // IN: path name
GuestInfoCollector *collector) // IN:
{
char line[4096];
FILE *fp = Posix_Fopen(pathName, "r");
if (fp == NULL) {
g_warning("%s: Error opening %s.\n", __FUNCTION__, pathName);
return FALSE;
}
while (fgets(line, sizeof line, fp) != NULL) {
uint64 value = 0;
char *fieldName = strtok(line, " \t");
char *fieldData = strtok(NULL, " \t");
if (fieldName == NULL) {
continue;
}
if ((fieldData == NULL) ||
(sscanf(fieldData, "%"FMT64"u", &value) != 1)) {
continue;
}
GuestInfoCollectStat(pathName, collector, fieldName, value);
}
fclose(fp);
return TRUE;
}
static Bool
GuestInfoProcMemInfoData(GuestInfoCollector *collector) // IN:
{
char line[512];
FILE *fp = Posix_Fopen(MEMINFO_FILE, "r");
if (fp == NULL) {
g_warning("%s: Error opening " MEMINFO_FILE ".\n", __FUNCTION__);
return FALSE;
}
while (fgets(line, sizeof line, fp) == line) {
char *p;
uint64 value = 0;
char *fieldName = strtok(line, " \t");
char *fieldData = strtok(NULL, " \t");
if (fieldName == NULL) {
continue;
}
p = strrchr(fieldName, ':');
if (p == NULL) {
continue;
} else {
*p = '\0';
}
if ((fieldData == NULL) ||
(sscanf(fieldData, "%"FMT64"u", &value) != 1)) {
continue;
}
GuestInfoCollectStat(MEMINFO_FILE, collector, fieldName, value);
}
fclose(fp);
return TRUE;
}
static Bool
GuestInfoGetUpTime(double *now) // OUT:
{
char line[512];
Bool result = FALSE;
FILE *fp = Posix_Fopen(UPTIME_FILE, "r");
if (fp == NULL) {
return result;
}
if (fgets(line, sizeof line, fp) != NULL) {
double idle;
if (sscanf(line, "%lf %lf", now, &idle) == 2) {
result = TRUE;
}
}
fclose(fp);
return result;
}
uint64
System_Uptime(void)
{
uint64 uptime = -1;
#ifdef USERWORLD
{
VmkuserStatus_Code status;
uint64 sysUptime;
status = VmkuserUptime_GetUptime(&sysUptime);
if (VmkuserStatus_IsOK(status)) {
uptime = sysUptime / 10000;
}
}
#elif defined(__linux__)
{
FILE *procStream;
char *buf = NULL;
size_t bufSize;
uint64 sec;
unsigned int csec;
if (((procStream = Posix_Fopen("/proc/uptime", "r")) != NULL) &&
(StdIO_ReadNextLine(procStream, &buf, 80, &bufSize) == StdIO_Success) &&
(sscanf(buf, "%"FMT64"u.%2u", &sec, &csec) == 2)) {
uptime = sec * 100 + csec;
} else {
Warning("%s: Unable to parse /proc/uptime.\n", __func__);
}
free(buf);
if (procStream) {
fclose(procStream);
}
}
#elif defined sun || defined __APPLE__
{
struct utmpx *boot, tmp;
tmp.ut_type = BOOT_TIME;
if ((boot = getutxid(&tmp)) != NULL) {
struct timeval now;
struct timeval *boottime = &boot->ut_tv;
gettimeofday(&now, NULL);
uptime =
(now.tv_sec * 100 + now.tv_usec / 10000) -
(boottime->tv_sec * 100 + boottime->tv_usec / 10000);
} else {
Warning("%s: Unable to determine boot time.\n", __func__);
}
endutxent();
}
#else // FreeBSD
{
/*
* FreeBSD: src/usr.bin/w/w.c rev 1.59:
* "Obtain true uptime through clock_gettime(CLOCK_MONOTONIC,
* struct *timespec) instead of subtracting 'bootime' from 'now'."
*/
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts) != -1) {
uptime = ts.tv_sec * 100 + ts.tv_nsec / 10000000;
} else {
Warning("%s: clock_gettime: %d\n", __func__, errno);
}
}
#endif
return uptime;
}
