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Last update Tue Feb 14 02:46:02 2012

# core.atomic

The atomic module provides basic support for lock-free concurrent programming.

License:
Boost License 1.0

Authors:
Sean Kelly

Source:
core/atomic.d

HeadUnshared!(T) atomicOp(string op, T, V1)(ref shared T val, V1 mod);
  Performs the binary operation 'op' on val using 'mod' as the modifier.

  Parameters:

  val | The target variable.
  mod | The modifier to apply.

  Returns:
  The result of the operation.

bool cas(T, V1, V2)(shared(T)* here, const V1 ifThis, const V2 writeThis);
bool cas(T, V1, V2)(shared(T)* here, const shared(V1) ifThis, shared(V2) writeThis);
  Stores 'writeThis' to the memory referenced by 'here' if the value referenced by 'here' is equal to 'ifThis'. This operation is both lock-free and atomic.

  Parameters:

  here | The address of the destination variable.
  writeThis | The value to store.
  ifThis | The comparison value.

  Returns:
  true if the store occurred, false if not.

HeadUnshared!(T) atomicLoad(msync ms = msync.seq, T)(ref const shared T val);
  Loads 'val' from memory and returns it. The memory barrier specified by 'ms' is applied to the operation, which is fully sequenced by default.

  Parameters:

  val | The target variable.

  Returns:
  The value of 'val'.

void atomicStore(msync ms = msync.seq, T, V1)(ref shared T val, V1 newval);
  Writes 'newval' into 'val'. The memory barrier specified by 'ms' is applied to the operation, which is fully sequenced by default.

  Parameters:

  val | The target variable.
  newval | The value to store.

enum msync;

  raw
    not sequenced

  acq
    hoist-load + hoist-store barrier

  rel
    sink-load + sink-store barrier

  seq
    fully sequenced (acq + rel)

Copyright Sean Kelly 2005 - 2010. | Page generated by Ddoc.