lldb_private::ModuleCache Class Reference

A module cache class. More...

#include "lldb/Target/ModuleCache.h"

Public Types
using	ModuleDownloader = std::function< Status(const ModuleSpec &, const FileSpec &)>
using	SymfileDownloader = std::function< Status(const lldb::ModuleSP &, const FileSpec &)>

Public Member Functions
Status	GetAndPut (const FileSpec &root_dir_spec, const char *hostname, const ModuleSpec &module_spec, const ModuleDownloader &module_downloader, const SymfileDownloader &symfile_downloader, lldb::ModuleSP &cached_module_sp, bool *did_create_ptr)

Private Member Functions
Status	Put (const FileSpec &root_dir_spec, const char *hostname, const ModuleSpec &module_spec, const FileSpec &tmp_file, const FileSpec &target_file)
Status	Get (const FileSpec &root_dir_spec, const char *hostname, const ModuleSpec &module_spec, lldb::ModuleSP &cached_module_sp, bool *did_create_ptr)

Private Attributes
std::unordered_map< std::string, lldb::ModuleWP >	m_loaded_modules

Detailed Description

A module cache class.

Caches locally modules that are downloaded from remote targets. Each cached module maintains 2 views:

• UUID view: /${CACHE_ROOT}/${PLATFORM_NAME}/.cache/${UUID}/${MODULE_FILENAME}
• Sysroot view: /${CACHE_ROOT}/${PLATFORM_NAME}/${HOSTNAME}/${MODULE_FULL_FILEPATH}

UUID views stores a real module file, whereas Sysroot view holds a symbolic link to UUID-view file.

Example: UUID view : /tmp/lldb/remote- linux/.cache/30C94DC6-6A1F-E951-80C3-D68D2B89E576-D5AE213C/libc.so.6 Sysroot view: /tmp/lldb/remote-linux/ubuntu/lib/x86_64-linux-gnu/libc.so.6

Definition at line 47 of file ModuleCache.h.

Member Typedef Documentation

ModuleDownloader

using lldb_private::ModuleCache::ModuleDownloader = std::function<Status(const ModuleSpec &, const FileSpec &)>

Definition at line 49 of file ModuleCache.h.

SymfileDownloader

using lldb_private::ModuleCache::SymfileDownloader = std::function<Status(const lldb::ModuleSP &, const FileSpec &)>

Definition at line 51 of file ModuleCache.h.

Member Function Documentation

Get()

Status ModuleCache::Get ( const FileSpec &  root_dir_spec, const char *  hostname, const ModuleSpec &  module_spec, lldb::ModuleSP &  cached_module_sp, bool *  did_create_ptr  )

private

Definition at line 216 of file ModuleCache.cpp.

References lldb_private::ConstString::AsCString(), error(), lldb_private::Status::FromErrorStringWithFormat(), lldb_private::UUID::GetAsString(), lldb_private::FileSpec::GetFilename(), lldb_private::ModuleSpec::GetFileSpec(), lldb_private::ModuleSpec::GetObjectSize(), lldb_private::ModuleList::GetSharedModule(), lldb_private::ModuleSpec::GetUUID(), lldb_private::FileSystem::Instance(), and m_loaded_modules.

Referenced by GetAndPut().

GetAndPut()

Status ModuleCache::GetAndPut	(	const FileSpec &	root_dir_spec,
		const char *	hostname,
		const ModuleSpec &	module_spec,
		const ModuleDownloader &	module_downloader,
		const SymfileDownloader &	symfile_downloader,
		lldb::ModuleSP &	cached_module_sp,
		bool *	did_create_ptr
	)

Definition at line 272 of file ModuleCache.cpp.

References error(), lldb_private::Status::FromErrorStringWithFormat(), Get(), lldb_private::UUID::GetAsString(), lldb_private::ModuleSpec::GetFileSpec(), lldb_private::ModuleSpec::GetUUID(), and Put().

Put()

Status ModuleCache::Put ( const FileSpec &  root_dir_spec, const char *  hostname, const ModuleSpec &  module_spec, const FileSpec &  tmp_file, const FileSpec &  target_file  )

private

Definition at line 191 of file ModuleCache.cpp.

References lldb_private::ConstString::AsCString(), error(), lldb_private::Status::FromErrorStringWithFormat(), lldb_private::FileSpec::GetFilename(), lldb_private::FileSpec::GetPath(), and lldb_private::ModuleSpec::GetUUID().

Referenced by GetAndPut().

Member Data Documentation

m_loaded_modules

std::unordered_map<std::string, lldb::ModuleWP> lldb_private::ModuleCache::m_loaded_modules

private

Definition at line 69 of file ModuleCache.h.

Referenced by Get().

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The documentation for this class was generated from the following files:

• ModuleCache.h
• ModuleCache.cpp