CCamac Class Reference

#include <CCamac.h>

List of all members.

Static Public Member Functions
static void	BranchInit (int nBranch)
static void	BranchRelease (int nBranch)
static long *	Base (int nBranch)
	Retrieves the base address of a branch.. Null if not mapped.
Static Private Attributes
static long *	m_BranchBases [MAX_BRANCHCOUNT]
	Array of branch base pointers.
static void *	m_Fds [MAX_BRANCHCOUNT]
	Array of device fds.

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Detailed Description

Definition at line 291 of file CCamac.h.

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Member Function Documentation

void CCamac::BranchInit

(

int

nBranch

)

[static]

Initialize access to a branch.

• If the associated BranchBases[] element is not null, this is a no-op.
• If the associated BranchBases[] element is null, the vme device is opened and a mapping performed for the specified branch. The mapping address is then stored in the BranchBases array.

Parameters:

nBranch

- Number of the branch to access.

Exceptions:

	CRangeError	- Thrown if nBranch is out of the range of legal branch numbers.
	CErrnoException	- If the mapping failed for any reason.

Definition at line 395 of file CCamac.cpp.

References BranchBase, BRANCHPERCRATE(), m_BranchBases, m_Fds, MAX_BRANCHCOUNT, and nBranchSize.

Referenced by CCamacModule::CCamacModule(), and CCamacModule::MakePointer().

void CCamac::BranchRelease

(

int

nBranch

)

[static]

Releases access to a map. If the branch has not been mapped, this is a no-op. If the branch has been mapped, munmap is called as well as the VME_KILL_MMAP ioctl on the device driver.

Parameters:

nBranch

- Number of the branch to unmap.

Exceptions:

	CRangeError	- If the nBranch parameter is out of range.
	CErrnoException	- If the one of the required system services failed to return normal.

Definition at line 436 of file CCamac.cpp.

References m_BranchBases, m_Fds, MAX_BRANCHCOUNT, and nBranchSize.

static long* CCamac::Base

(

int

nBranch

)

[inline, static]

Retrieves the base address of a branch.. Null if not mapped.

Definition at line 304 of file CCamac.h.

References m_BranchBases.

Referenced by CCamacModule::MakePointer().

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Member Data Documentation

long * CCamac::m_BranchBases [static, private]

Array of branch base pointers.

Definition at line 295 of file CCamac.h.

Referenced by Base(), BranchInit(), and BranchRelease().

void * CCamac::m_Fds [static, private]

Array of device fds.

Definition at line 296 of file CCamac.h.

Referenced by BranchInit(), and BranchRelease().

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

• CCamac.h
• CCamac.cpp

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