mirror of https://github.com/acidanthera/audk.git
93 lines
3.5 KiB
C
93 lines
3.5 KiB
C
/** @file
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Global data for the program environment.
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Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi.h>
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#include <Library/ShellLib.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include "Efi/Console.h"
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/* ################## Type Declarations ################################# */
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/** The type of an atexit handler function. **/
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typedef void __xithandler_t(void);
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/* ################## Global Declarations ############################### */
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#ifndef TYPE_BIT
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#define TYPE_BIT(type) (sizeof (type) * CHAR_BIT)
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#endif /* !defined TYPE_BIT */
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#ifndef TYPE_SIGNED
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#define TYPE_SIGNED(type) (((type) -1) < 0)
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#endif /* !defined TYPE_SIGNED */
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#ifndef INT_STRLEN_MAXIMUM
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/*
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** 302 / 1000 is log10(2.0) rounded up.
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** Subtract one for the sign bit if the type is signed;
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** add one for integer division truncation;
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** add one more for a minus sign if the type is signed.
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*/
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#define INT_STRLEN_MAXIMUM(type) \
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((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
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#endif /* !defined INT_STRLEN_MAXIMUM */
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/*
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** Big enough for something such as
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** ??? ???-2147483648 -2147483648:-2147483648:-2147483648 -2147483648\n
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** (two three-character abbreviations, five strings denoting integers,
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** three explicit spaces, two explicit colons, a newline,
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** and a trailing ASCII nul).
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*/
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#define ASCTIME_BUFLEN (3 * 2 + 5 * INT_STRLEN_MAXIMUM(int) + 3 + 2 + 1 + 1)
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struct __filedes {
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EFI_FILE_HANDLE FileHandle;
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UINT32 State; // In use if non-zero
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int Oflags; // From the open call
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int Omode; // From the open call
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int RefCount; // Reference count of opens
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int SocProc; // Placeholder: socket owner process or process group.
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UINT16 MyFD; // Which FD this is.
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};
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struct __MainData {
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// File descriptors
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struct __filedes fdarray[OPEN_MAX];
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// Low-level File abstractions for the stdin, stdout, stderr streams
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ConInstance StdIo[3];
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// Signal Handlers
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__sighandler_t *sigarray[SIG_LAST]; // Pointers to signal handlers
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void (*cleanup)(void); // Cleanup Function Pointer
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__xithandler_t *atexit_handler[ATEXIT_MAX]; // Array of handlers for atexit.
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clock_t AppStartTime; // Set in Main.c and used for time.h
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clock_t ClocksPerSecond; // Set in Main.c and used for time.h
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int num_atexit; ///< Number of registered atexit handlers.
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CHAR16 UString[UNICODE_STRING_MAX];
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struct tm BDTime; // Broken-down time structure for localtime.
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EFI_TIME TimeBuffer; // Used by <time.h>mk
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char ASgetenv[ASCII_STRING_MAX]; // Only modified by getenv
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char ASasctime[ASCTIME_BUFLEN]; // Only modified by asctime
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BOOLEAN aborting; // Ensures cleanup function only called once when aborting.
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};
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extern struct __MainData *gMD;
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