4e3c12c0af
Removed dependencies on arch/x86/types.h - this file is not really used anymore, now. Might prevent compiling on Windows, though. Replaced "int" with "int32" for the id types. Removed some stuff from ktypes.h because it didn't belong there. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1120 a95241bf-73f2-0310-859d-f6bbb57e9c96
98 lines
2.2 KiB
C
Executable File
98 lines
2.2 KiB
C
Executable File
#ifndef _KERNEL_ATOMIC_H
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#define _KERNEL_ATOMIC_H
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#include <ktypes.h>
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/**
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* @file kernel/atomic.h
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* @brief Prototypes for kernel and user versions of atomic
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* functions.
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*/
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/**
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* @defgroup Kernel_Atomic Atomic Operations
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* @ingroup OpenBeOS_Kernel
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* @{
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* atomic_add(), atomic_and(), atomic_or() must
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* match the definitions in SupportDefs.h
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*/
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/**
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* Perform an atomic addition.
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* @param val Pointer to an integer
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* @param incr The increment to add (may be -ve)
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* @note Returns value of val before addition
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*/
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int32 atomic_add(vint32 *val, int32 incr);
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/**
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* Atomic and operation
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* @param val Pointer to an integer
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* @param incr The increment to add (may be -ve)
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* @note Returns value of val before addition
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*/
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int32 atomic_and(vint32 *val, int32 incr);
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/**
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* Atomic or operation
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* @param val Pointer to an integer
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* @param incr The increment to add (may be -ve)
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* @note Returns value of val before addition
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*/
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int32 atomic_or(vint32 *val, int32 incr);
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int32 atomic_set(vint32 *val, int32 set_to);
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/* Compare the value of val with test_val. If they
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* are equal then set the value of 'val' to
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* 'set_to'
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*/
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int32 test_and_set(vint32 *val, int32 set_to, int32 test_val);
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/**
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* Atomic add (user version)
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* @param val Pointer to an integer
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* @param incr The increment to add (may be -ve)
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* @note Returns value of val before addition
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*/
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int32 user_atomic_add(vint32 *val, int32 incr);
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/**
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* Atomic and (user version)
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* @param val Pointer to an integer
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* @param incr The increment to add (may be -ve)
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* @note Returns value of val before addition
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*/
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int32 user_atomic_and(vint32 *val, int32 incr);
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/**
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* Atomic or (user version)
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* @param val Pointer to an integer
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* @param incr The increment to add (may be -ve)
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* @note Returns value of val before addition
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*/
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int32 user_atomic_or(vint32 *val, int32 incr);
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int32 user_atomic_set(vint32 *val, int32 set_to);
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/* Compare the value of val with test_val. If they
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* are equal then set the value of 'val' to
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* 'set_to'
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* @note This is the user version and should not be used within
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* the kernel.
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*/
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int32 user_test_and_set(vint32 *val, int32 set_to, int32 test_val);
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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#endif /* _KERNEL_ATOMIC_H */
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