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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/vfs/vfsrp.H $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* COPYRIGHT International Business Machines Corp. 2011,2014 */
/* */
/* p1 */
/* */
/* Object Code Only (OCO) source materials */
/* Licensed Internal Code Source Materials */
/* IBM HostBoot Licensed Internal Code */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* Origin: 30 */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef VFSRP_H
#define VFSRP_H
#include <stdint.h>
#include <builtins.h>
#include <errl/errlentry.H>
#include <sys/msg.h>
#include <vector>
#include <sys/sync.h>
struct msg_t;
namespace VFS
{
void vfs_msg_handler(void * unused);
/**
* Virtual File System Service
*/
class VfsRp
{
public:
/**
* static init
* @param[in] task args
*/
static void init( errlHndl_t &io_taskRetErrl );
/**
* Get the list of test modules
* @param[out] list of test module names
*/
void get_test_modules(std::vector<const char *> & o_list) const;
/**
* Test for existance of module
* @param[in] i_name module name
* @return [true|false]
*/
bool module_exists(const char * i_name) const;
/**
* get VfsSystemModule information
* @param[in] i_name module name
* @return pointer to VfsSystemModule entree
* or NULL if not found
*/
const VfsSystemModule * get_vfs_info(const char * i_name) const;
/**
* Get the module name that contains the given address
* @param[in] i_vaddr The virtual address
* @return ptr to the module name or NULL if it's not found
*/
const char * get_name_from_address(const void * i_vaddr) const;
/**
* Query if a module is loaded
* @param[in] i_name The module name
* @return [true|false]
*/
bool is_module_loaded(const char * i_name);
protected:
/**
* Ctor
*/
VfsRp() : iv_msgQ(NULL), iv_msg(NULL), iv_pnor_vaddr(0)
{
mutex_init(&iv_mutex);
}
/**
* Dtor
*/
~VfsRp();
/**
* Start message handler
*/
static void* msg_handler(void * unused);
/**
* Load or Unload a module. Monitor for crash
* @param[in] i_msg the message
* @note Does not return.
*/
static void* loadUnloadMonitored(void * i_msg);
/**
* Load or Unload a module
* @param[in] i_msg the message
*/
static void* loadUnload(void * i_msg);
/**
* Call _start on module. Montior for crash
* @param[in] i_msg the message
* @note Does not return.
*/
static void* execMonitored(void * i_msg);
/**
* Call _start on module
* @param[in] i_msg the message
*/
static void* exec(void * i_msg);
/**
* Start the VFS resource provider message handler
* and watch for crashes.
*/
static void* vfsWatcher(void * unused);
private: // functions
/**
* Initialize this object
* @return return code on error
*/
errlHndl_t _init();
/**
* Message handler
*/
void msgHandler();
/**
* Load or Unload a module. Monitor for task crash
* @parm[in] The message
*/
void _loadUnloadMonitored(msg_t * i_msg);
/**
* Load or Unload a module
* @param[in] i_msg the message
*/
void _loadUnload(msg_t * i_msg);
/**
* Call _start on module
* @param[in] i_msg the message
*/
void _exec(msg_t * i_msg);
/**
* Call _start on Module. Montor for task crash
* @param[in] The message
*/
void _execMonitored(msg_t * i_msg);
/**
* Message Handler task watcher
*/
void _vfsWatcher();
private: // data
msg_q_t iv_msgQ; //!< message queue
msg_t* iv_msg; //!< Current message being handled
uint64_t iv_pnor_vaddr; //!< virtual address of ext image in PFNOR
typedef std::vector<VfsSystemModule *> ModuleList_t;
mutex_t iv_mutex; //!< lock for iv_loaded
ModuleList_t iv_loaded; //!< Loaded modules
};
}; // VFS namepsace
#endif
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