RTDECL(int) RTErrConvertFromDarwinIO(int iNativeCode)
{
/*
* 'optimized' success case.
*/
if (iNativeCode == kIOReturnSuccess)
return VINF_SUCCESS;
return RTErrConvertFromDarwin(iNativeCode);
}
RTDECL(int) RTErrConvertFromDarwinKern(int iNativeCode)
{
/*
* 'optimized' success case.
*/
if (iNativeCode == KERN_SUCCESS)
return VINF_SUCCESS;
return RTErrConvertFromDarwin(iNativeCode);
}
static int getProcessInfo(RTPROCESS process, struct proc_taskinfo *tinfo)
{
LogAleksey(("getProcessInfo() getting info for %d", process));
int nb = proc_pidinfo(process, PROC_PIDTASKINFO, 0, tinfo, sizeof(*tinfo));
if (nb <= 0)
{
int rc = errno;
Log(("proc_pidinfo() -> %s", strerror(rc)));
return RTErrConvertFromDarwin(rc);
}
else if ((unsigned int)nb < sizeof(*tinfo))
{
Log(("proc_pidinfo() -> too few bytes %d", nb));
return VERR_INTERNAL_ERROR;
}
return VINF_SUCCESS;
}
RTDECL(int) RTSystemQueryAvailableRam(uint64_t *pcb)
{
AssertPtrReturn(pcb, VERR_INVALID_POINTER);
static mach_port_t volatile s_hSelfPort = 0;
mach_port_t hSelfPort = s_hSelfPort;
if (hSelfPort == 0)
s_hSelfPort = hSelfPort = mach_host_self();
vm_statistics_data_t VmStats;
mach_msg_type_number_t cItems = sizeof(VmStats) / sizeof(natural_t);
kern_return_t krc = host_statistics(hSelfPort, HOST_VM_INFO, (host_info_t)&VmStats, &cItems);
if (krc == KERN_SUCCESS)
{
uint64_t cPages = VmStats.inactive_count;
cPages += VmStats.free_count;
*pcb = cPages * PAGE_SIZE;
return VINF_SUCCESS;
}
return RTErrConvertFromDarwin(krc);
}