qbatomic.h		qbatomic.h
	skipping to change at line 28		skipping to change at line 28
	*/		*/
	/*		/*
	* Copied from the glib code base (glib/gatomic.h) and namespaced		* Copied from the glib code base (glib/gatomic.h) and namespaced
	* for libqb.		* for libqb.
	*/		*/
	#ifndef QB_ATOMIC_DEFINED		#ifndef QB_ATOMIC_DEFINED
	#define QB_ATOMIC_DEFINED		#define QB_ATOMIC_DEFINED
			/* *INDENT-OFF* */
			#ifdef __cplusplus
			extern "C" {
			#endif
			/* *INDENT-ON* */
	#include <stdint.h>		#include <stdint.h>
	#include <qb/qbdefs.h>		#include <qb/qbdefs.h>
			#include <qb/qbconfig.h>
	/**		/**
	* @file		* @file
	* Basic atomic integer and pointer operations		* Basic atomic integer and pointer operations
	*		*
	* The following functions can be used to atomically access integers and		* The following functions can be used to atomically access integers and
	* pointers. They are implemented as inline assembler function on most		* pointers. They are implemented as inline assembler function on most
	* platforms and use slower fall-backs otherwise. Using them can sometimes		* platforms and use slower fall-backs otherwise. Using them can sometimes
	* save you from using a performance-expensive pthread_mutex to protect the		* save you from using a performance-expensive pthread_mutex to protect the
	* integer or pointer.		* integer or pointer.
	skipping to change at line 64		skipping to change at line 71
	* in the foot. So if in doubt, use a pthread_mutex. If you don't know, wha t		* in the foot. So if in doubt, use a pthread_mutex. If you don't know, wha t
	* memory barriers are, do not use anything but qb_atomic_int_inc() and		* memory barriers are, do not use anything but qb_atomic_int_inc() and
	* qb_atomic_int_dec_and_test().		* qb_atomic_int_dec_and_test().
	*		*
	* It is not safe to set an integer or pointer just by assigning		* It is not safe to set an integer or pointer just by assigning
	* to it, when it is concurrently accessed by other threads with the follow ing		* to it, when it is concurrently accessed by other threads with the follow ing
	* functions. Use qb_atomic_int_compare_and_exchange() or		* functions. Use qb_atomic_int_compare_and_exchange() or
	* qb_atomic_pointer_compare_and_exchange() respectively.		* qb_atomic_pointer_compare_and_exchange() respectively.
	*/		*/
	/* *INDENT-OFF* */
	#ifdef __cplusplus
	extern "C" {
	#endif
	/* *INDENT-ON* */
	void qb_atomic_init(void);		void qb_atomic_init(void);
	/**		/**
	* Atomically adds val to the integer pointed to by atomic.		* Atomically adds val to the integer pointed to by atomic.
	* It returns the value of *atomic just before the addition		* It returns the value of *atomic just before the addition
	* took place. Also acts as a memory barrier.		* took place. Also acts as a memory barrier.
	*		*
	* @param atomic a pointer to an integer		* @param atomic a pointer to an integer
	* @param val the value to add to *atomic		* @param val the value to add to *atomic
	* @return the value of *atomic before the addition.		* @return the value of *atomic before the addition.
	skipping to change at line 166		skipping to change at line 167
	* @param newval the new value		* @param newval the new value
	*		*
	*/		*/
	void qb_atomic_pointer_set(volatile void* QB_GNUC_MAY_ALIAS * atomic,		void qb_atomic_pointer_set(volatile void* QB_GNUC_MAY_ALIAS * atomic,
	void* newval);		void* newval);
	#ifndef QB_ATOMIC_OP_MEMORY_BARRIER_NEEDED		#ifndef QB_ATOMIC_OP_MEMORY_BARRIER_NEEDED
	#define qb_atomic_int_get(atomic) ((int32_t)*(atomic))		#define qb_atomic_int_get(atomic) ((int32_t)*(atomic))
	#define qb_atomic_int_set(atomic, newval) ((void) (*(atomic) = (newval )))		#define qb_atomic_int_set(atomic, newval) ((void) (*(atomic) = (newval )))
	#define qb_atomic_pointer_get(atomic) ((void*)*(atomic))		#define qb_atomic_pointer_get(atomic) ((void*)*(atomic))
	#define qb_atomic_pointer_set(atomic, newval) ((void) (*(atomic) = (newval )))		#define qb_atomic_pointer_set(atomic, newval) ((void*) (*(atomic) = (newva l)))
	#else		#else
	#define qb_atomic_int_get(atomic) \		#define qb_atomic_int_get(atomic) \
	((void) sizeof (char* [sizeof (*(atomic)) == sizeof (int32_t) ? 1 : -1]), \		((void) sizeof (char* [sizeof (*(atomic)) == sizeof (int32_t) ? 1 : -1]), \
	(qb_atomic_int_get) ((volatile int32_t QB_GNUC_MAY_ALIAS *) (volatile voi d *) (atomic)))		(qb_atomic_int_get) ((volatile int32_t QB_GNUC_MAY_ALIAS *) (volatile voi d *) (atomic)))
	#define qb_atomic_int_set(atomic, newval) \		#define qb_atomic_int_set(atomic, newval) \
	((void) sizeof (char* [sizeof (*(atomic)) == sizeof (int32_t) ? 1 : -1]), \		((void) sizeof (char* [sizeof (*(atomic)) == sizeof (int32_t) ? 1 : -1]), \
	(qb_atomic_int_set) ((volatile int32_t QB_GNUC_MAY_ALIAS *) (volatile voi d *) (atomic), (newval)))		(qb_atomic_int_set) ((volatile int32_t QB_GNUC_MAY_ALIAS *) (volatile voi d *) (atomic), (newval)))
	#define qb_atomic_pointer_get(atomic) \		#define qb_atomic_pointer_get(atomic) \
	((void) sizeof (char* [sizeof (*(atomic)) == sizeof (void*) ? 1 : -1]), \		((void) sizeof (char* [sizeof (*(atomic)) == sizeof (void*) ? 1 : -1]), \
	(qb_atomic_pointer_get) ((volatile void QB_GNUC_MAY_ALIAS *) (volatile vo id *) (atomic)))		(qb_atomic_pointer_get) ((volatile void* QB_GNUC_MAY_ALIAS *) (volatile v oid *) (atomic)))
	#define qb_atomic_pointer_set(atomic, newval) \		#define qb_atomic_pointer_set(atomic, newval) \
	((void) sizeof (char* [sizeof (*(atomic)) == sizeof (void*) ? 1 : -1]), \		((void) sizeof (char* [sizeof (*(atomic)) == sizeof (void*) ? 1 : -1]), \
	(qb_atomic_pointer_set) ((volatile void QB_GNUC_MAY_ALIAS *) (volatile vo id *) (atomic), (newval)))		(qb_atomic_pointer_set) ((volatile void* QB_GNUC_MAY_ALIAS *) (volatile v oid *) (atomic), (newval)))
	#endif /* QB_ATOMIC_OP_MEMORY_BARRIER_NEEDED */		#endif /* QB_ATOMIC_OP_MEMORY_BARRIER_NEEDED */
	/**		/**
	* Atomically increments the integer pointed to by atomic by 1.		* Atomically increments the integer pointed to by atomic by 1.
	*		*
	* @param atomic a pointer to an integer.		* @param atomic a pointer to an integer.
	*/		*/
	#define qb_atomic_int_inc(atomic) (qb_atomic_int_add ((atomic), 1))		#define qb_atomic_int_inc(atomic) (qb_atomic_int_add ((atomic), 1))
	/**		/**
End of changes. 6 change blocks.
	9 lines changed or deleted		10 lines changed or added
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