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https://github.com/XTXMarkets/ternfs.git
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53049d5779
The idea is to drain the socket and do a single RocksDB WAL write/fsync for all the write requests we have found. The read requests are immediately executed. The reasoning here is that currently write requests are _a lot_ slower than the read requests because fsyncing takes ~500us on fsf1. In the future this might change. Since we're at it, we also use batch UDP syscalls in the CDC. Fixes #119.
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
#pragma once
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#include <iostream>
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///////////////////////////////////
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// Static init for globals
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///////////////////////////////////
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////////////////////////////////////////////
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// Compiler hints
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////////////////////////////////////////////
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// BUG NOTICE: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47466
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// --> this kicks in for statements such as unlikely( a && b );
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// --> see assembler generated for t_compiler.cpp
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// --> the unlikely case is favoured by the compiler
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#define likely(x) __builtin_expect(!!(x), 1)
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#define unlikely(x) __builtin_expect(!!(x), 0)
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#define PACKED __attribute__((packed))
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#define ALIGNED(n) __attribute__((aligned(n)))
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#define ALWAYS_INLINE __attribute__((always_inline))
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#define NO_INLINE __attribute__((noinline))
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#define FORMAT(n) __attribute__((format(printf,n+1,n+2)))
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#define NORETURN __attribute__((noreturn))
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#define CONST __attribute__((const))
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#define PURE __attribute__((pure))
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#define HOT __attribute__((hot))
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#define COLD __attribute__((cold))
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#define UNUSED __attribute__((unused))
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#define DEPRECATED __attribute__((deprecated))
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#define CHECK_RETURN __attribute__((warn_unused_result))
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///////////////////////////////////
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// Debugging features
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///////////////////////////////////
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#define SHORT_FILE (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
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std::ostream& operator<<(std::ostream& out, const struct sockaddr_in& addr);
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std::ostream& operator<<(std::ostream& out, const struct in_addr& addr);
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std::ostream& goLangBytesFmt(std::ostream& out, const char* str, size_t len);
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struct GoLangBytesFmt {
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const char* str;
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size_t len;
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GoLangBytesFmt(const char* str_, size_t len_) : str(str_), len(len_) {}
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};
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std::ostream& operator<<(std::ostream& out, const GoLangBytesFmt& bytes);
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std::ostream& goLangQuotedStringFmt(std::ostream& out, const char* str, size_t len);
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struct GoLangQuotedStringFmt {
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const char* str;
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size_t len;
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GoLangQuotedStringFmt(const char* str_, size_t len_) : str(str_), len(len_) {}
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};
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std::ostream& operator<<(std::ostream& out, const GoLangQuotedStringFmt& bytes);
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