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/* wincap.h: Header for OS capability class.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _WINCAP_H
#define _WINCAP_H
struct wincaps
{
DWORD def_guard_pages;
int64_t mmap_storage_high;
/* The bitfields must be 8 byte aligned on x86_64, otherwise the bitfield
ops generated by gcc are off by 4 bytes. */
struct __attribute__ ((aligned (8))) {
unsigned is_server : 1;
unsigned needs_count_in_si_lpres2 : 1;
unsigned needs_query_information : 1;
unsigned has_gaa_largeaddress_bug : 1;
unsigned has_broken_alloc_console : 1;
unsigned has_console_logon_sid : 1;
unsigned has_precise_system_time : 1;
unsigned has_microsoft_accounts : 1;
unsigned has_processor_groups : 1;
unsigned has_broken_prefetchvm : 1;
unsigned has_new_pebteb_region : 1;
unsigned has_broken_whoami : 1;
unsigned has_unprivileged_createsymlink : 1;
unsigned has_unbiased_interrupt_time : 1;
unsigned has_precise_interrupt_time : 1;
unsigned has_posix_unlink_semantics : 1;
unsigned has_case_sensitive_dirs : 1;
unsigned has_posix_rename_semantics : 1;
unsigned no_msv1_0_s4u_logon_in_wow64 : 1;
unsigned has_con_24bit_colors : 1;
unsigned has_con_broken_csi3j : 1;
unsigned has_con_broken_il_dl : 1;
unsigned has_con_esc_rep : 1;
};
};
class wincapc
{
SYSTEM_INFO system_info;
RTL_OSVERSIONINFOEXW version;
char osnam[40];
ULONG_PTR wow64;
void *caps;
public:
void init ();
const DWORD cpu_count () const { return system_info.dwNumberOfProcessors; }
const DWORD_PTR cpu_mask () const { return system_info.dwActiveProcessorMask;}
const WORD cpu_arch () const { return system_info.wProcessorArchitecture; }
const WORD cpu_level () const { return system_info.wProcessorLevel; }
/* The casts to size_t make sure that the returned value has the size of
a pointer on any system. This is important when using them for bit
mask operations, like in roundup2. */
const size_t page_size () const { return (size_t) system_info.dwPageSize; }
const size_t allocation_granularity () const
{ return (size_t) system_info.dwAllocationGranularity; }
const char *osname () const { return osnam; }
const DWORD build_number () const { return version.dwBuildNumber; }
const bool is_wow64 () const { return !!wow64; }
#define IMPLEMENT(cap) cap() const { return ((wincaps *) this->caps)->cap; }
DWORD def_guard_page_size () const
{
return ((wincaps *) this->caps)->def_guard_pages * page_size ();
}
#ifdef __x86_64__
intptr_t IMPLEMENT (mmap_storage_high)
#endif
bool IMPLEMENT (is_server)
bool IMPLEMENT (needs_count_in_si_lpres2)
bool IMPLEMENT (needs_query_information)
bool IMPLEMENT (has_gaa_largeaddress_bug)
bool IMPLEMENT (has_broken_alloc_console)
bool IMPLEMENT (has_console_logon_sid)
bool IMPLEMENT (has_precise_system_time)
bool IMPLEMENT (has_microsoft_accounts)
bool IMPLEMENT (has_processor_groups)
bool IMPLEMENT (has_broken_prefetchvm)
bool IMPLEMENT (has_new_pebteb_region)
bool IMPLEMENT (has_broken_whoami)
bool IMPLEMENT (has_unprivileged_createsymlink)
bool IMPLEMENT (has_unbiased_interrupt_time)
bool IMPLEMENT (has_precise_interrupt_time)
bool IMPLEMENT (has_posix_unlink_semantics)
bool IMPLEMENT (has_case_sensitive_dirs)
bool IMPLEMENT (has_posix_rename_semantics)
bool IMPLEMENT (no_msv1_0_s4u_logon_in_wow64)
bool IMPLEMENT (has_con_24bit_colors)
bool IMPLEMENT (has_con_broken_csi3j)
bool IMPLEMENT (has_con_broken_il_dl)
bool IMPLEMENT (has_con_esc_rep)
void disable_case_sensitive_dirs ()
{
((wincaps *)caps)->has_case_sensitive_dirs = false;
}
#undef IMPLEMENT
};
extern wincapc wincap;
#endif /* _WINCAP_H */
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