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QFCP_cache.h File Reference

Interface to the cache of standard physics files files (QFCP => File Cache, Physics). More...


Typedefs

typedef struct _QSP_templates QSP_templates
typedef struct _QFCP_cache QFCP_cache
typedef struct _QFC_cache QFC_cache
typedef struct _QFC_file QFC_file
typedef struct _QFR_fileCtx QFR_fileCtx

Functions

int QFCP_sizeof (int depth)
 Returns the size, in bytes, of a standard physics file cache.
void * QFCP_construct (QFCP_cache *cache, QFR_fileCtx *qfr, const QSP_templates *templates, int depth)
 Constructs a handler cache of the requested depth.
void QFCP_destruct (QFCP_cache *cache)
 Destroys the cache.
QFC_cache * QFCP_sbsLocate (QFCP_cache *cache)
 Returns a pointer to the SBS's (Secondary Boot Script) cache.
QFC_cache * QFCP_latcLocate (QFCP_cache *cache)
 Returns a pointer to the LATc (LAT hardware configuration) cache.
QFC_cache * QFCP_lpaLocate (QFCP_cache *cache)
 Returns a pointer to the LPA's cache.
QFC_cache * QFCP_masterLocate (QFCP_cache *cache, unsigned int hid)
 Returns a pointer to the requested handler's master cache.
QFC_cache * QFCP_cfgLocate (QFCP_cache *cache, unsigned int hid, unsigned int cid)
 Returns a pointer to the requested handler's configuration cache.
int QFCP_sbsResolve (QFCP_cache *cache, QFC_file *file, unsigned int key)
 Resolves the reference for the SBS (Secondary Boot Script) file.
int QFCP_latcResolve (QFCP_cache *cache, QFC_file *file, unsigned int key)
 Resolves the reference for the LATc (LAT hardware configuration file.
int QFCP_lpaResolve (QFCP_cache *cache, QFC_file *file, unsigned int key)
 Resolves the reference for the LPA (LAT Physics Analysis) file.
int QFCP_masterResolve (QFCP_cache *cache, QFC_file *file, unsigned int key, unsigned int hid)
 Resolves the reference for the requested handler's master file.
int QFCP_cfgResolve (QFCP_cache *cache, QFC_file *file, unsigned int key, unsigned int hid, unsigned int cid)
 Resolves the reference for the requested handler's configuration file.


Detailed Description

Interface to the cache of standard physics files files (QFCP => File Cache, Physics).

Author:
JJRussell - russell@slac.stanford.edu

   CVS $Id: QFCP_cache.h,v 1.1 2008/06/09 20:01:30 russell Exp $

Function Documentation

QFC_cache* QFCP_cfgLocate ( QFCP_cache cache,
unsigned int  hid,
unsigned int  cid 
)

Returns a pointer to the requested handler's configuration cache.

Returns:
A pointer to the requested handler's master cache or NULL if the hid is invalid (>= 32) or cid is invalid (>= 32)
Parameters:
cache The file cache
hid The handler identifier
cid The configuration identifier

References _QFCP_cachesNamed::cfgs, and _QFCP_cache::name.

int QFCP_cfgResolve ( QFCP_cache cache,
QFC_file *  file,
unsigned int  key,
unsigned int  hid,
unsigned int  cid 
)

Resolves the reference for the requested handler's configuration file.

Return values:
== 0, if successful
== -1, if reference could not be resolved
Parameters:
cache The file cache
file The file structure to receive the resolved file
key The file key
hid The handler identifier
cid The configuration identifier

References _QFCP_cachesNamed::cfgs, _QFCP_cache::name, _QFCP_cache::qfr, and _QFCP_cache::templates.

void* QFCP_construct ( QFCP_cache cache,
QFR_fileCtx *  qfr,
const QSP_templates templates,
int  depth 
)

Constructs a handler cache of the requested depth.

Returns:
Pointer to the next available memory location after the constructed cache
Parameters:
cache The memory in which the cache will be constructed. It is assumed that this memory has been properly sized using QFCP_sizeof.
qfr The file resolution context. This contains things like the FMX handle.
templates The set of template file names. This is used when the resolving key is a CMX style key. This may be NULL, in which case the standard default names will be used.
depth The depth of the cache

References _QFCP_cache::caches, _QFCP_cache::qfr, and _QFCP_cache::templates.

void QFCP_destruct ( QFCP_cache cache  ) 

Destroys the cache.

Parameters:
cache The cache to destroy

References _QFCP_cache::caches.

QFC_cache* QFCP_latcLocate ( QFCP_cache cache  ) 

Returns a pointer to the LATc (LAT hardware configuration) cache.

Returns:
A pointer to the requested cache
Parameters:
cache The file cache

References _QFCP_cachesNamed::latc, and _QFCP_cache::name.

int QFCP_latcResolve ( QFCP_cache cache,
QFC_file *  file,
unsigned int  key 
)

Resolves the reference for the LATc (LAT hardware configuration file.

Return values:
== 0, if successful
== -1, if reference could not be resolved
Parameters:
cache The file cache
file The file structure to receive the resolved file
key The file key

References _QFCP_cachesNamed::latc, _QFCP_cache::name, _QFCP_cache::qfr, and _QFCP_cache::templates.

QFC_cache* QFCP_lpaLocate ( QFCP_cache cache  ) 

Returns a pointer to the LPA's cache.

Returns:
A pointer to the requested cache
Parameters:
cache The file cache

References _QFCP_cachesNamed::lpa, and _QFCP_cache::name.

int QFCP_lpaResolve ( QFCP_cache cache,
QFC_file *  file,
unsigned int  key 
)

Resolves the reference for the LPA (LAT Physics Analysis) file.

Return values:
== 0, if successful
== -1, if reference could not be resolved
Parameters:
cache The file cache
file The file structure to receive the resolved file
key The file key

References _QFCP_cache::name, _QFCP_cache::qfr, _QFCP_cachesNamed::sbs, and _QFCP_cache::templates.

QFC_cache* QFCP_masterLocate ( QFCP_cache cache,
unsigned int  hid 
)

Returns a pointer to the requested handler's master cache.

Returns:
A pointer to the requested handler's master cache or NULL if the hid is invalid (>= 32)
Parameters:
cache The file cache
hid The handler identifier

References _QFCP_cachesNamed::masters, and _QFCP_cache::name.

int QFCP_masterResolve ( QFCP_cache cache,
QFC_file *  file,
unsigned int  key,
unsigned int  hid 
)

Resolves the reference for the requested handler's master file.

Return values:
== 0, if successful
== -1, if reference could not be resolved
Parameters:
cache The file cache
file The file structure to receive the resolved file
key The file key
hid The handler identifier

References _QFCP_cachesNamed::masters, _QFCP_cache::name, _QFCP_cache::qfr, and _QFCP_cache::templates.

QFC_cache* QFCP_sbsLocate ( QFCP_cache cache  ) 

Returns a pointer to the SBS's (Secondary Boot Script) cache.

Returns:
A pointer to the requested cache
Parameters:
cache The file cache

References _QFCP_cache::name, and _QFCP_cachesNamed::sbs.

int QFCP_sbsResolve ( QFCP_cache cache,
QFC_file *  file,
unsigned int  key 
)

Resolves the reference for the SBS (Secondary Boot Script) file.

Return values:
== 0, if successful
== -1, if reference could not be resolved
Parameters:
cache The file cache
file The file structure to receive the resolved file
key The file key

References _QFCP_cache::name, _QFCP_cache::qfr, _QFCP_cachesNamed::sbs, and _QFCP_cache::templates.

int QFCP_sizeof ( int  depth  ) 

Returns the size, in bytes, of a standard physics file cache.

Returns:
The size, in bytes, of a handler file cache
Parameters:
depth The depth of the cache. This determines how many versions of each file may be cached at any given time.


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