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/* miscfuncs.h: main Cygwin header file.
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 _MISCFUNCS_H
#define _MISCFUNCS_H
#define likely(X) __builtin_expect (!!(X), 1)
#define unlikely(X) __builtin_expect (!!(X), 0)
extern "C" int getentropy (void *ptr, size_t len);
int __reg1 winprio_to_nice (DWORD);
DWORD __reg1 nice_to_winprio (int &);
bool __reg3 create_pipe (PHANDLE, PHANDLE, LPSECURITY_ATTRIBUTES, DWORD);
BOOL WINAPI CreatePipeOverlapped (PHANDLE read_handle, PHANDLE write_handle,
LPSECURITY_ATTRIBUTES sa);
BOOL WINAPI ReadPipeOverlapped (HANDLE h, PVOID buf, DWORD len,
LPDWORD ret_len, DWORD timeout);
BOOL WINAPI WritePipeOverlapped (HANDLE h, LPCVOID buf, DWORD len,
LPDWORD ret_len, DWORD timeout);
/* class for per-line reading using native functions. The caller provides
the file as an POBJECT_ATTRIBUTES, and the buffer space. */
class NT_readline
{
HANDLE fh;
PCHAR buf;
PCHAR got;
PCHAR end;
ULONG buflen;
ULONG len;
ULONG line;
public:
NT_readline () : fh (NULL) {}
bool init (POBJECT_ATTRIBUTES attr, char *buf, ULONG buflen);
PCHAR gets ();
void close () { if (fh) NtClose (fh); fh = NULL; }
~NT_readline () { close (); }
};
extern "C" void yield ();
#define import_address(x) __import_address ((void *)(x))
void * __reg1 __import_address (void *);
#define caller_return_address() \
__caller_return_address (__builtin_return_address (0))
void * __reg1 __caller_return_address (void *);
void backslashify (const char *, char *, bool);
void slashify (const char *, char *, bool);
#define isslash(c) ((c) == '/')
extern void transform_chars (PWCHAR, PWCHAR);
extern inline void
transform_chars (PUNICODE_STRING upath, USHORT start_idx)
{
transform_chars (upath->Buffer + start_idx,
upath->Buffer + upath->Length / sizeof (WCHAR) - 1);
}
/* Memory checking */
int __reg2 check_invalid_virtual_addr (const void *s, unsigned sz);
ssize_t __reg3 check_iovec (const struct iovec *, int, bool);
#define check_iovec_for_read(a, b) check_iovec ((a), (b), false)
#define check_iovec_for_write(a, b) check_iovec ((a), (b), true)
#ifdef __x86_64__
extern PVOID create_new_main_thread_stack (PVOID &allocationbase,
SIZE_T parent_commitsize);
#endif
extern "C" DWORD WINAPI pthread_wrapper (PVOID arg);
extern "C" HANDLE WINAPI CygwinCreateThread (LPTHREAD_START_ROUTINE thread_func,
PVOID thread_arg, PVOID stackaddr,
ULONG stacksize, ULONG guardsize,
DWORD creation_flags,
LPDWORD thread_id);
#endif /*_MISCFUNCS_H*/
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