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upd: [ipc] pause

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mutouyun 2022-10-15 18:45:22 +08:00
parent 4e4f22e3a8
commit e91abf7af5
1 changed files with 5 additions and 5 deletions
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10
src/libipc/spin_lock.cpp
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@ -7,29 +7,29 @@
LIBIPC_NAMESPACE_BEG_
#if defined(LIBIPC_CC_MSVC)
#if defined(LIBIMP_CC_MSVC)
# include <Windows.h> // YieldProcessor
/**
* @brief Not for intel c++ compiler, so ignore http://software.intel.com/en-us/forums/topic/296168
* @see http://msdn.microsoft.com/en-us/library/windows/desktop/ms687419(v=vs.85).aspx
*/
# define LIBIPC_LOCK_PAUSE_() YieldProcessor()
#elif defined(LIBIPC_CC_GNUC)
# if defined(LIBIPC_INSTR_X86_64)
#elif defined(LIBIMP_CC_GNUC)
# if defined(LIBIMP_INSTR_X86_64)
/**
* @brief Intel(R) 64 and IA-32 Architectures Software Developer's Manual V2
* PAUSE-Spin Loop Hint, 4-57
* @see http://www.intel.com/content/www/us/en/architecture-and-technology/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.html?wapkw=instruction+set+reference
*/
# define LIBIPC_LOCK_PAUSE_() __asm__ __volatile__("pause")
# elif defined(LIBIPC_INSTR_I64)
# elif defined(LIBIMP_INSTR_I64)
/**
* @brief Intel(R) Itanium(R) Architecture Developer's Manual, Vol.3
* hint - Performance Hint, 3:145
* @see http://www.intel.com/content/www/us/en/processors/itanium/itanium-architecture-vol-3-manual.html
*/
# define LIBIPC_LOCK_PAUSE_() __asm__ __volatile__ ("hint @pause")
# elif defined(LIBIPC_INSTR_ARM)
# elif defined(LIBIMP_INSTR_ARM)
/**
* @brief ARM Architecture Reference Manuals (YIELD)
* @see http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.subset.architecture.reference/index.html