103 lines
1.5 KiB
C
103 lines
1.5 KiB
C
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/*++
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Copyright (c) 1998 Intel Corporation
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Module Name:
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handle.c
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Abstract:
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Shell environment handle information management
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Revision History
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--*/
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#include "shelle.h"
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UINTN SEnvNoHandles;
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EFI_HANDLE *SEnvHandles;
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VOID
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INTERNAL
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SEnvInitHandleGlobals (
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VOID
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)
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{
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SEnvNoHandles = 0;
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SEnvHandles = NULL;
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}
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VOID
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INTERNAL
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SEnvLoadHandleTable (
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VOID
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)
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{
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/*
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* For ease of use the shell maps handle #'s to short numbers.
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*
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* This is only done on request for various internal commands and
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* the references are immediately freed when the internal command
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* completes.
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*/
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/* Free any old info */
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SEnvFreeHandleTable();
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/* Load new info */
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SEnvHandles = NULL;
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LibLocateHandle (AllHandles, NULL, NULL, &SEnvNoHandles, &SEnvHandles);
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}
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VOID
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INTERNAL
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SEnvFreeHandleTable (
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VOID
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)
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{
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if (SEnvNoHandles) {
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SEnvFreeHandleProtocolInfo();
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FreePool (SEnvHandles);
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SEnvHandles = NULL;
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SEnvNoHandles = 0;
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}
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}
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UINTN
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SEnvHandleNoFromStr(
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IN CHAR16 *Str
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)
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{
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UINTN HandleNo;
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HandleNo = xtoi(Str);
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HandleNo = HandleNo > SEnvNoHandles ? 0 : HandleNo;
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return HandleNo;
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}
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EFI_HANDLE
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SEnvHandleFromStr(
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IN CHAR16 *Str
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)
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{
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UINTN HandleNo;
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EFI_HANDLE Handle;
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HandleNo = xtoi(Str) - 1;
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Handle = HandleNo > SEnvNoHandles ? NULL : SEnvHandles[HandleNo];
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return Handle;
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}
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