add unlikely attribute

MacroModel · Dec 12, 2024 · 96be610 · 96be610
1 parent 4619a9d
commit 96be610
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Showing 2 changed files with 4 additions and 5 deletions.
diff --git a/include/fast_io_hosted/process/process/posix.h b/include/fast_io_hosted/process/process/posix.h
@@ -123,7 +123,7 @@ inline posix_wait_status posix_waitpid(pid_t pid)
 #if defined(__linux__) && defined(__NR_wait4)
 	system_call_throw_error(system_call<__NR_wait4, int>(pid, __builtin_addressof(status.wait_loc), 0, nullptr));
 #else
-	if (::fast_io::posix::libc_waitpid(pid, __builtin_addressof(status.wait_loc), 0) == -1)
+	if (::fast_io::posix::libc_waitpid(pid, __builtin_addressof(status.wait_loc), 0) == -1) [[unlikely]]
 	{
 		throw_posix_error();
 	}
@@ -178,12 +178,12 @@ struct io_redirector
 	{
 		return_code rc;
 		rc = redirect(0, pio.in);
-		if (rc.error)
+		if (rc.error) [[unlikely]]
 		{
 			return rc;
 		}
 		rc = redirect(1, pio.out);
-		if (rc.error)
+		if (rc.error) [[unlikely]]
 		{
 			return rc;
 		}
@@ -219,7 +219,7 @@ struct io_redirector
 		{
 			rc = sys_dup2_nothrow(d.fd, target_fd);
 		}
-		if (rc.error)
+		if (rc.error) [[unlikely]]
 		{
 			return rc;
 		}

diff --git a/include/fast_io_legacy_impl/c/impl.h b/include/fast_io_legacy_impl/c/impl.h
@@ -1112,7 +1112,6 @@ using c_file_factory_unlocked = c_family_file_factory<c_family::native_unlocked>
 
 namespace freestanding
 {
-
 template <c_family fm, ::std::integral char_type>
 struct is_trivially_relocatable<basic_c_family_file<fm, char_type>>
 {
-Original file line number
+Diff line change
@@ Expand Up @@
     namespace freestanding
     {
     template <c_family fm, ::std::integral char_type>
     struct is_trivially_relocatable<basic_c_family_file<fm, char_type>>
     {
@@ Expand Down @@