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volitile... duh, yeah the variable need to be labeled volitile

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@pendletonrc
pendletonrc committed Jul 9, 2009
1 parent 5278fef commit 9f282d40a113228622dafe7a0b8052e8b5fc196d
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Showing with 160 additions and 160 deletions.
  1. +60 −60 include/SDL_atomic.h
  2. +48 −48 src/atomic/dummy/SDL_atomic.c
  3. +48 −48 src/atomic/linux/SDL_atomic.c
  4. +4 −4 test/testatomic.c
120 include/SDL_atomic.h
View file
@@ -54,40 +54,40 @@ extern "C" {

/* 8 bit atomic operations */

extern DECLSPEC Uint8 SDLCALL SDL_AtomicExchange8(Uint8 * ptr, Uint8 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet8(Uint8 * ptr,
extern DECLSPEC Uint8 SDLCALL SDL_AtomicExchange8(volatile Uint8 * ptr, Uint8 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet8(volatile Uint8 * ptr,
Uint8 oldvalue, Uint8 newvalue);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTestThenSet8(Uint8 * ptr);
extern DECLSPEC void SDLCALL SDL_AtomicClear8(Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicFetchThenIncrement8(Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicFetchThenDecrement8(Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicFetchThenAdd8(Uint8 * ptr, Uint8 value);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicFetchThenSubtract8(Uint8 * ptr, Uint8 value);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicIncrementThenFetch8(Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicDecrementThenFetch8(Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicAddThenFetch8(Uint8 * ptr, Uint8 value);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicSubtractThenFetch8(Uint8 * ptr, Uint8 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTestThenSet8(volatile Uint8 * ptr);
extern DECLSPEC void SDLCALL SDL_AtomicClear8(volatile Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicFetchThenIncrement8(volatile Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicFetchThenDecrement8(volatile Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicFetchThenAdd8(volatile Uint8 * ptr, Uint8 value);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicFetchThenSubtract8(volatile Uint8 * ptr, Uint8 value);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicIncrementThenFetch8(volatile Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicDecrementThenFetch8(volatile Uint8 * ptr);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicAddThenFetch8(volatile Uint8 * ptr, Uint8 value);
extern DECLSPEC Uint8 SDLCALL SDL_AtomicSubtractThenFetch8(volatile Uint8 * ptr, Uint8 value);

/* 16 bit atomic operations */

extern DECLSPEC Uint16 SDLCALL SDL_AtomicExchange16(Uint16 * ptr, Uint16 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet16(Uint16 * ptr,
extern DECLSPEC Uint16 SDLCALL SDL_AtomicExchange16(volatile Uint16 * ptr, Uint16 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet16(volatile Uint16 * ptr,
Uint16 oldvalue, Uint16 newvalue);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTestThenSet16(Uint16 * ptr);
extern DECLSPEC void SDLCALL SDL_AtomicClear16(Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicFetchThenIncrement16(Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicFetchThenDecrement16(Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicFetchThenAdd16(Uint16 * ptr, Uint16 value);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicFetchThenSubtract16(Uint16 * ptr, Uint16 value);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicIncrementThenFetch16(Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicDecrementThenFetch16(Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicAddThenFetch16(Uint16 * ptr, Uint16 value);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicSubtractThenFetch16(Uint16 * ptr, Uint16 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTestThenSet16(volatile Uint16 * ptr);
extern DECLSPEC void SDLCALL SDL_AtomicClear16(volatile Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicFetchThenIncrement16(volatile Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicFetchThenDecrement16(volatile Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicFetchThenAdd16(volatile Uint16 * ptr, Uint16 value);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicFetchThenSubtract16(volatile Uint16 * ptr, Uint16 value);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicIncrementThenFetch16(volatile Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicDecrementThenFetch16(volatile Uint16 * ptr);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicAddThenFetch16(volatile Uint16 * ptr, Uint16 value);
extern DECLSPEC Uint16 SDLCALL SDL_AtomicSubtractThenFetch16(volatile Uint16 * ptr, Uint16 value);

/* 32 bit atomic operations */

/**
* \fn int SDL_AtomicExchange32(Uint32 * ptr, Uint32 value)
* \fn int SDL_AtomicExchange32(volatile Uint32 * ptr, Uint32 value)
*
* \brief Atomically exchange two 32 bit values.
*
@@ -100,9 +100,9 @@ extern DECLSPEC Uint16 SDLCALL SDL_AtomicSubtractThenFetch16(Uint16 * ptr, Uint1
* with value. This function can be used to implement SDL_TestThenSet.
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicExchange32(Uint32 * ptr, Uint32 value);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicExchange32(volatile Uint32 * ptr, Uint32 value);
/**
* \fn int SDL_AtomicCompareThenSet32(Uint32 * ptr, Uint32 oldvalue, Uint32 newvalue)
* \fn int SDL_AtomicCompareThenSet32(volatile Uint32 * ptr, Uint32 oldvalue, Uint32 newvalue)
*
* \brief If *ptr == oldvalue then replace the contents of *ptr by new value.
*
@@ -113,10 +113,10 @@ extern DECLSPEC Uint32 SDLCALL SDL_AtomicExchange32(Uint32 * ptr, Uint32 value);
* \param newvalue is value to be stored at *ptr.
*
*/
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet32(Uint32 * ptr,
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet32(volatile Uint32 * ptr,
Uint32 oldvalue, Uint32 newvalue);
/**
* \fn SDL_bool SDL_AtomicTestThenSet32(Uint32 * ptr);
* \fn SDL_bool SDL_AtomicTestThenSet32(volatile Uint32 * ptr);
*
* \brief Check to see if *ptr == 0 and set it to non-zero.
*
@@ -126,18 +126,18 @@ extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet32(Uint32 * ptr,
* \param ptr points to the value to be tested and set.
*
*/
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTestThenSet32(Uint32 * ptr);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTestThenSet32(volatile Uint32 * ptr);
/**
* \fn void SDL_AtomicClear32(Uint32 * ptr);
* \fn void SDL_AtomicClear32(volatile Uint32 * ptr);
*
* \brief set the value pointed to by ptr to be zero.
*
* \param ptr address of the value to be set to zero
*
*/
extern DECLSPEC void SDLCALL SDL_AtomicClear32(Uint32 * ptr);
extern DECLSPEC void SDLCALL SDL_AtomicClear32(volatile Uint32 * ptr);
/**
* \fn Uint32 SDL_AtomicFetchThenIncrement32(Uint32 * ptr);
* \fn Uint32 SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr);
*
* \brief fetch the current value of *ptr and then increment that
* value in place.
@@ -147,9 +147,9 @@ extern DECLSPEC void SDLCALL SDL_AtomicClear32(Uint32 * ptr);
* \param ptr address of the value to fetch and increment
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenIncrement32(Uint32 * ptr);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr);
/**
* \fn Uint32 SDL_AtomicFetchThenDecrement32(Uint32 * ptr);
* \fn Uint32 SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr);
*
* \brief fetch *ptr and then decrement the value in place.
*
@@ -158,9 +158,9 @@ extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenIncrement32(Uint32 * ptr);
* \param ptr address of the value to fetch and drement
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenDecrement32(Uint32 * ptr);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr);
/**
* \fn Uint32 SDL_AtomicFetchThenAdd32(Uint32 * ptr, Uint32 value);
* \fn Uint32 SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value);
*
* \brief fetch the current value at ptr and then add value to *ptr.
*
@@ -170,9 +170,9 @@ extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenDecrement32(Uint32 * ptr);
* \param value the value to add to *ptr.
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenAdd32(Uint32 * ptr, Uint32 value);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value);
/**
* \fn Uint32 SDL_AtomicFetchThenSubtract32(Uint32 * ptr, Uint32 value);
* \fn Uint32 SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value);
*
* \brief Fetch *ptr and then subtract value from it.
*
@@ -182,9 +182,9 @@ extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenAdd32(Uint32 * ptr, Uint32 val
* \param value the value to subtract from *ptr.
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenSubtract32(Uint32 * ptr, Uint32 value);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value);
/**
* \fn Uint32 SDL_AtomicIncrementThenFetch32(Uint32 * ptr);
* \fn Uint32 SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr);
*
* \brief Add one to the data pointed to by ptr and return that value.
*
@@ -193,9 +193,9 @@ extern DECLSPEC Uint32 SDLCALL SDL_AtomicFetchThenSubtract32(Uint32 * ptr, Uint3
* \param ptr address of the data to increment.
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicIncrementThenFetch32(Uint32 * ptr);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr);
/**
* \fn Uint32 SDL_AtomicDecrementThenFetch32(Uint32 * ptr);
* \fn Uint32 SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr);
*
* \brief Subtract one from data pointed to by ptr and return the new value.
*
@@ -204,9 +204,9 @@ extern DECLSPEC Uint32 SDLCALL SDL_AtomicIncrementThenFetch32(Uint32 * ptr);
* \param ptr The address of the data to decrement.
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicDecrementThenFetch32(Uint32 * ptr);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr);
/**
* \fn Uint32 SDL_AtomicAddThenFetch32(Uint32 * ptr, Uint32 value);
* \fn Uint32 SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value);
*
* \brief Add value to the data pointed to by ptr and return result.
*
@@ -216,9 +216,9 @@ extern DECLSPEC Uint32 SDLCALL SDL_AtomicDecrementThenFetch32(Uint32 * ptr);
* \param value The value to be added.
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicAddThenFetch32(Uint32 * ptr, Uint32 value);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value);
/**
* \fn Uint32 SDL_AtomicSubtractThenFetch32(Uint32 * ptr, Uint32 value);
* \fn Uint32 SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value);
*
* \brief Subtract value from the data pointed to by ptr and return the result.
*
@@ -228,24 +228,24 @@ extern DECLSPEC Uint32 SDLCALL SDL_AtomicAddThenFetch32(Uint32 * ptr, Uint32 val
* \param value The value to be subtracted.
*
*/
extern DECLSPEC Uint32 SDLCALL SDL_AtomicSubtractThenFetch32(Uint32 * ptr, Uint32 value);
extern DECLSPEC Uint32 SDLCALL SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value);

/* 64 bit atomic operations */
#ifdef SDL_HAS_64BIT_TYPE

extern DECLSPEC Uint64 SDLCALL SDL_AtomicExchange64(Uint64 * ptr, Uint64 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet64(Uint64 * ptr,
extern DECLSPEC Uint64 SDLCALL SDL_AtomicExchange64(volatile Uint64 * ptr, Uint64 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCompareThenSet64(volatile Uint64 * ptr,
Uint64 oldvalue, Uint64 newvalue);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTestThenSet64(Uint64 * ptr);
extern DECLSPEC void SDLCALL SDL_AtomicClear64(Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicFetchThenIncrement64(Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicFetchThenDecrement64(Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicFetchThenAdd64(Uint64 * ptr, Uint64 value);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicFetchThenSubtract64(Uint64 * ptr, Uint64 value);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicIncrementThenFetch64(Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicDecrementThenFetch64(Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicAddThenFetch64(Uint64 * ptr, Uint64 value);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicSubtractThenFetch64(Uint64 * ptr, Uint64 value);
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTestThenSet64(volatile Uint64 * ptr);
extern DECLSPEC void SDLCALL SDL_AtomicClear64(volatile Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicFetchThenIncrement64(volatile Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicFetchThenDecrement64(volatile Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicFetchThenAdd64(volatile Uint64 * ptr, Uint64 value);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicFetchThenSubtract64(volatile Uint64 * ptr, Uint64 value);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicIncrementThenFetch64(volatile Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicDecrementThenFetch64(volatile Uint64 * ptr);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicAddThenFetch64(volatile Uint64 * ptr, Uint64 value);
extern DECLSPEC Uint64 SDLCALL SDL_AtomicSubtractThenFetch64(volatile Uint64 * ptr, Uint64 value);
#endif /* SDL_HAS_64BIT_TYPE */

/* Ends C function definitions when using C++ */

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