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57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/*===- OSInterface.h - Interface to query OS for functionality ---*- C -*--===*\
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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* *
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* This file defines the prototype interface that we will expect operating *
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* systems to implement if they wish to support offline cachine. *
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* *
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\*===----------------------------------------------------------------------===*/
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#ifndef OS_INTERFACE_H
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#define OS_INTERFACE_H
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#include "Config/sys/types.h"
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struct stat;
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/*
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* llvmStat - equivalent to stat(3), except the key may not necessarily
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* correspond to a file by that name, implementation is up to the OS.
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* Values returned in buf are similar as they are in Unix.
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*/
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void llvmStat(const char *key, struct stat *buf);
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/*
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* llvmWriteFile - implements a 'save' of a file in the OS. 'key' may not
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* necessarily map to a file of the same name.
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* Returns:
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* 0 - success
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* non-zero - error
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*/
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int llvmWriteFile(const char *key, const void *data, size_t len);
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/*
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* llvmLoadFile - tells the OS to load data corresponding to a particular key
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* somewhere into memory.
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* Returns:
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* 0 - failure
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* non-zero - address of loaded file
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*
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* Value of size is the length of data loaded into memory.
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*/
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void* llvmReadFile(const char *key, size_t *size);
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/*
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* llvmExecve - execute a file from cache. This is a temporary proof-of-concept
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* because we do not relocate what we can read from disk.
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*/
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int llvmExecve(const char *filename, char *const argv[], char *const envp[]);
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#endif
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