Yaron Keren 45a5bfef44 Add clang_free to libclang to free memory allocated in libclang.
One of the problems libclang tests has running under Windows is memory
allocated in libclang.dll but being freed in the test executable, possibly
by a different memory manager. This patch exposes a new export function,
clang_free(), used to free any allocated memory with the same libclang.dll
memory manager that allocated the memory.

http://reviews.llvm.org/D10949

Reviewed by Reid Kleckner, Douglas Gregor.

llvm-svn: 241789
2015-07-09 07:53:23 +00:00

157 lines
5.4 KiB
C

/*==-- clang-c/BuildSystem.h - Utilities for use by build systems -*- C -*-===*\
|* *|
|* The LLVM Compiler Infrastructure *|
|* *|
|* This file is distributed under the University of Illinois Open Source *|
|* License. See LICENSE.TXT for details. *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This header provides various utilities for use by build systems. *|
|* *|
\*===----------------------------------------------------------------------===*/
#ifndef LLVM_CLANG_C_BUILDSYSTEM_H
#define LLVM_CLANG_C_BUILDSYSTEM_H
#include "clang-c/Platform.h"
#include "clang-c/CXErrorCode.h"
#include "clang-c/CXString.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* \defgroup BUILD_SYSTEM Build system utilities
* @{
*/
/**
* \brief Return the timestamp for use with Clang's
* \c -fbuild-session-timestamp= option.
*/
CINDEX_LINKAGE unsigned long long clang_getBuildSessionTimestamp(void);
/**
* \brief Object encapsulating information about overlaying virtual
* file/directories over the real file system.
*/
typedef struct CXVirtualFileOverlayImpl *CXVirtualFileOverlay;
/**
* \brief Create a \c CXVirtualFileOverlay object.
* Must be disposed with \c clang_VirtualFileOverlay_dispose().
*
* \param options is reserved, always pass 0.
*/
CINDEX_LINKAGE CXVirtualFileOverlay
clang_VirtualFileOverlay_create(unsigned options);
/**
* \brief Map an absolute virtual file path to an absolute real one.
* The virtual path must be canonicalized (not contain "."/"..").
* \returns 0 for success, non-zero to indicate an error.
*/
CINDEX_LINKAGE enum CXErrorCode
clang_VirtualFileOverlay_addFileMapping(CXVirtualFileOverlay,
const char *virtualPath,
const char *realPath);
/**
* \brief Set the case sensitivity for the \c CXVirtualFileOverlay object.
* The \c CXVirtualFileOverlay object is case-sensitive by default, this
* option can be used to override the default.
* \returns 0 for success, non-zero to indicate an error.
*/
CINDEX_LINKAGE enum CXErrorCode
clang_VirtualFileOverlay_setCaseSensitivity(CXVirtualFileOverlay,
int caseSensitive);
/**
* \brief Write out the \c CXVirtualFileOverlay object to a char buffer.
*
* \param options is reserved, always pass 0.
* \param out_buffer_ptr pointer to receive the buffer pointer, which should be
* disposed using \c clang_free().
* \param out_buffer_size pointer to receive the buffer size.
* \returns 0 for success, non-zero to indicate an error.
*/
CINDEX_LINKAGE enum CXErrorCode
clang_VirtualFileOverlay_writeToBuffer(CXVirtualFileOverlay, unsigned options,
char **out_buffer_ptr,
unsigned *out_buffer_size);
/**
* \brief free memory allocated by libclang, such as the buffer returned by
* \c CXVirtualFileOverlay() or \c clang_ModuleMapDescriptor_writeToBuffer().
*
* \param buffer memory pointer to free.
*/
CINDEX_LINKAGE void clang_free(void *buffer);
/**
* \brief Dispose a \c CXVirtualFileOverlay object.
*/
CINDEX_LINKAGE void clang_VirtualFileOverlay_dispose(CXVirtualFileOverlay);
/**
* \brief Object encapsulating information about a module.map file.
*/
typedef struct CXModuleMapDescriptorImpl *CXModuleMapDescriptor;
/**
* \brief Create a \c CXModuleMapDescriptor object.
* Must be disposed with \c clang_ModuleMapDescriptor_dispose().
*
* \param options is reserved, always pass 0.
*/
CINDEX_LINKAGE CXModuleMapDescriptor
clang_ModuleMapDescriptor_create(unsigned options);
/**
* \brief Sets the framework module name that the module.map describes.
* \returns 0 for success, non-zero to indicate an error.
*/
CINDEX_LINKAGE enum CXErrorCode
clang_ModuleMapDescriptor_setFrameworkModuleName(CXModuleMapDescriptor,
const char *name);
/**
* \brief Sets the umbrealla header name that the module.map describes.
* \returns 0 for success, non-zero to indicate an error.
*/
CINDEX_LINKAGE enum CXErrorCode
clang_ModuleMapDescriptor_setUmbrellaHeader(CXModuleMapDescriptor,
const char *name);
/**
* \brief Write out the \c CXModuleMapDescriptor object to a char buffer.
*
* \param options is reserved, always pass 0.
* \param out_buffer_ptr pointer to receive the buffer pointer, which should be
* disposed using \c clang_free().
* \param out_buffer_size pointer to receive the buffer size.
* \returns 0 for success, non-zero to indicate an error.
*/
CINDEX_LINKAGE enum CXErrorCode
clang_ModuleMapDescriptor_writeToBuffer(CXModuleMapDescriptor, unsigned options,
char **out_buffer_ptr,
unsigned *out_buffer_size);
/**
* \brief Dispose a \c CXModuleMapDescriptor object.
*/
CINDEX_LINKAGE void clang_ModuleMapDescriptor_dispose(CXModuleMapDescriptor);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* CLANG_C_BUILD_SYSTEM_H */