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init: only use pipe2 if availabile, check in configure

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Sebastian Falbesoner 2021-02-22 00:25:17 +01:00
parent 828bb776d2
commit 584fd91d2d
2 changed files with 3 additions and 1 deletions
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2
configure.ac
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@ -925,6 +925,8 @@ AC_CHECK_DECLS([strnlen])
dnl Check for daemon(3), unrelated to --with-daemon (although used by it) dnl Check for daemon(3), unrelated to --with-daemon (although used by it)
AC_CHECK_DECLS([daemon]) AC_CHECK_DECLS([daemon])
AC_CHECK_DECLS([pipe2])
AC_CHECK_DECLS([le16toh, le32toh, le64toh, htole16, htole32, htole64, be16toh, be32toh, be64toh, htobe16, htobe32, htobe64],,, AC_CHECK_DECLS([le16toh, le32toh, le64toh, htole16, htole32, htole64, be16toh, be32toh, be64toh, htobe16, htobe32, htobe64],,,
[#if HAVE_ENDIAN_H [#if HAVE_ENDIAN_H
#include <endian.h> #include <endian.h>

2
src/shutdown.cpp
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@ -32,7 +32,7 @@ static int g_shutdown_pipe[2] = {-1, -1};
bool InitShutdownState() bool InitShutdownState()
{ {
#ifndef WIN32 #ifndef WIN32
#if HAVE_O_CLOEXEC #if HAVE_O_CLOEXEC && HAVE_DECL_PIPE2
// If we can, make sure that the file descriptors are closed on exec() // If we can, make sure that the file descriptors are closed on exec()
// to prevent interference. // to prevent interference.
if (pipe2(g_shutdown_pipe, O_CLOEXEC) != 0) { if (pipe2(g_shutdown_pipe, O_CLOEXEC) != 0) {