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Cleanup server instructions startup checking code

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This commit is contained in:
Azat Khuzhin 2020-10-04 01:38:16 +03:00
parent 77c9f7af79
commit 9c09050e7c
1 changed files with 14 additions and 12 deletions
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26
programs/main.cpp
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@ -238,8 +238,9 @@ void checkRequiredInstructionsImpl(volatile InstructionFail & fail)
}
/// This function is safe to use in static initializers.
void writeError(const char * data, size_t size)
void writeError(const char * data)
{
size_t size = strlen(data);
while (size != 0)
{
ssize_t res = ::write(STDERR_FILENO, data, size);
@ -272,8 +273,7 @@ void checkRequiredInstructions()
/// Typical implementation of strlen is using SSE4.2 or AVX2.
/// But this is not the case because it's compiler builtin and is executed at compile time.
const char * msg = "Can not set signal handler\n";
writeError(msg, strlen(msg));
writeError("Can not set signal handler\n");
_Exit(1);
}
@ -281,12 +281,9 @@ void checkRequiredInstructions()
if (sigsetjmp(jmpbuf, 1))
{
const char * msg1 = "Instruction check fail. The CPU does not support ";
writeError(msg1, strlen(msg1));
const char * msg2 = instructionFailToString(fail);
writeError(msg2, strlen(msg2));
const char * msg3 = " instruction set.\n";
writeError(msg3, strlen(msg3));
writeError("Instruction check fail. The CPU does not support ");
writeError(instructionFailToString(fail));
writeError(" instruction set.\n");
_Exit(1);
}
@ -294,13 +291,18 @@ void checkRequiredInstructions()
if (sigaction(signal, &sa_old, nullptr))
{
const char * msg = "Can not set signal handler\n";
writeError(msg, strlen(msg));
writeError("Can not set signal handler\n");
_Exit(1);
}
}
struct Checker { Checker() { checkRequiredInstructions(); } } checker;
struct Checker
{
Checker()
{
checkRequiredInstructions();
}
} checker;
}