InnoDB cleanup: Replace UNIV_LINUX, UNIV_SOLARIS, UNIV_AIX

Let us use the normal platform-specific preprocessor symbols
__linux__, __sun__, _AIX instead of some homebrew ones.

The preprocessor symbol UNIV_HPUX must have lost its meaning
by f6deb00a (note: the symbol
UNIV_HPUX10 is being checked for, but only UNIV_HPUX is defined).

extra/mariabackup/changed_page_bitmap.cc

@@ -459,7 +459,7 @@ log_online_open_bitmap_file_read_only(
 	bitmap_file->size = os_file_get_size(bitmap_file->file);
 	bitmap_file->offset = 0;
 
-#ifdef UNIV_LINUX
+#ifdef __linux__
 	posix_fadvise(bitmap_file->file, 0, 0, POSIX_FADV_SEQUENTIAL);
 	posix_fadvise(bitmap_file->file, 0, 0, POSIX_FADV_NOREUSE);
 #endif

storage/innobase/buf/buf0buf.cc

@@ -76,7 +76,7 @@ Created 11/5/1995 Heikki Tuuri
 #include "ut0byte.h"
 #include <new>
 
-#ifdef UNIV_LINUX
+#ifdef __linux__
 #include <stdlib.h>
 #endif
 

storage/innobase/buf/buf0flu.cc

@@ -47,14 +47,14 @@ Created 11/11/1995 Heikki Tuuri
 #include "srv0mon.h"
 #include "ut0stage.h"
 #include "fil0pagecompress.h"
-#ifdef UNIV_LINUX
+#ifdef __linux__
 /* include defs for CPU time priority settings */
 #include <unistd.h>
 #include <sys/syscall.h>
 #include <sys/time.h>
 #include <sys/resource.h>
 static const int buf_flush_page_cleaner_priority = -20;
-#endif /* UNIV_LINUX */
+#endif /* __linux__ */
 
 /** Sleep time in microseconds for loop waiting for the oldest
 modification lsn */
@@ -2875,7 +2875,7 @@ pc_wait_finished(
 	return(all_succeeded);
 }
 
-#ifdef UNIV_LINUX
+#ifdef __linux__
 /**
 Set priority for page_cleaner threads.
 @param[in]	priority	priority intended to set
@@ -2890,7 +2890,7 @@ buf_flush_page_cleaner_set_priority(
 	return(getpriority(PRIO_PROCESS, (pid_t)syscall(SYS_gettid))
 	       == priority);
 }
-#endif /* UNIV_LINUX */
+#endif /* __linux__ */
 
 #ifdef UNIV_DEBUG
 /** Loop used to disable page cleaner threads. */
@@ -3017,7 +3017,7 @@ DECLARE_THREAD(buf_flush_page_cleaner_coordinator)(void*)
 	ib::info() << "page_cleaner thread running, id "
 		<< os_thread_pf(os_thread_get_curr_id());
 #endif /* UNIV_DEBUG_THREAD_CREATION */
-#ifdef UNIV_LINUX
+#ifdef __linux__
 	/* linux might be able to set different setting for each thread.
 	worth to try to set high priority for page cleaner threads */
 	if (buf_flush_page_cleaner_set_priority(
@@ -3032,7 +3032,7 @@ DECLARE_THREAD(buf_flush_page_cleaner_coordinator)(void*)
 	}
 	/* Signal that setpriority() has been attempted. */
 	os_event_set(recv_sys->flush_end);
-#endif /* UNIV_LINUX */
+#endif /* __linux__ */
 
 	do {
 		/* treat flushing requests during recovery. */
@@ -3433,7 +3433,7 @@ DECLARE_THREAD(buf_flush_page_cleaner_worker)(
 	os_event_set(page_cleaner.is_started);
 	mutex_exit(&page_cleaner.mutex);
 
-#ifdef UNIV_LINUX
+#ifdef __linux__
 	/* linux might be able to set different setting for each thread
 	worth to try to set high priority for page cleaner threads */
 	if (buf_flush_page_cleaner_set_priority(
@@ -3442,7 +3442,7 @@ DECLARE_THREAD(buf_flush_page_cleaner_worker)(
 		ib::info() << "page_cleaner worker priority: "
 			<< buf_flush_page_cleaner_priority;
 	}
-#endif /* UNIV_LINUX */
+#endif /* __linux__ */
 
 	while (true) {
 		os_event_wait(page_cleaner.is_requested);

storage/innobase/include/os0proc.h

 /*****************************************************************************
 
 Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
-Copyright (c) 2017, 2019, MariaDB Corporation.
+Copyright (c) 2017, 2022, MariaDB Corporation.
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -30,7 +30,7 @@ Created 9/30/1995 Heikki Tuuri
 
 #include "univ.i"
 
-#ifdef UNIV_LINUX
+#ifdef __linux__
 #include <sys/ipc.h>
 #include <sys/shm.h>
 #endif

storage/innobase/innodb.cmake

@@ -55,7 +55,7 @@ ENDIF()
 IF(UNIX)
   IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
 
-    ADD_DEFINITIONS("-DUNIV_LINUX -D_GNU_SOURCE=1")
+    ADD_DEFINITIONS("-D_GNU_SOURCE=1")
 
     CHECK_INCLUDE_FILES (libaio.h HAVE_LIBAIO_H)
     CHECK_LIBRARY_EXISTS(aio io_queue_init "" HAVE_LIBAIO)
@@ -67,12 +67,6 @@ IF(UNIX)
     IF(HAVE_LIBNUMA)
       LINK_LIBRARIES(numa)
     ENDIF()
-  ELSEIF(CMAKE_SYSTEM_NAME MATCHES "HP*")
-    ADD_DEFINITIONS("-DUNIV_HPUX")
-  ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "AIX")
-    ADD_DEFINITIONS("-DUNIV_AIX")
-  ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
-    ADD_DEFINITIONS("-DUNIV_SOLARIS")
   ENDIF()
 ENDIF()
 

storage/innobase/os/os0file.cc

@@ -37,7 +37,7 @@ Created 10/21/1995 Heikki Tuuri
 #include "os0file.h"
 #include "sql_const.h"
 
-#ifdef UNIV_LINUX
+#ifdef __linux__
 #include <sys/types.h>
 #include <sys/stat.h>
 #endif
@@ -63,18 +63,18 @@ Created 10/21/1995 Heikki Tuuri
 # include <linux/falloc.h>
 #endif /* HAVE_FALLOC_PUNCH_HOLE_AND_KEEP_SIZE */
 
-#if defined(UNIV_LINUX) && defined(HAVE_SYS_IOCTL_H)
+#if defined(__linux__) && defined(HAVE_SYS_IOCTL_H)
 # include <sys/ioctl.h>
 # ifndef DFS_IOCTL_ATOMIC_WRITE_SET
 #  define DFS_IOCTL_ATOMIC_WRITE_SET _IOW(0x95, 2, uint)
 # endif
 #endif
 
-#if defined(UNIV_LINUX) && defined(HAVE_SYS_STATVFS_H)
+#if defined(__linux__) && defined(HAVE_SYS_STATVFS_H)
 #include <sys/statvfs.h>
 #endif
 
-#if defined(UNIV_LINUX) && defined(HAVE_LINUX_FALLOC_H)
+#if defined(__linux__) && defined(HAVE_LINUX_FALLOC_H)
 #include <linux/falloc.h>
 #endif
 
@@ -827,7 +827,7 @@ os_file_get_block_size(
 {
 	ulint		fblock_size = 512;
 
-#if defined(UNIV_LINUX)
+#if defined(__linux__)
 	struct stat local_stat;
 	int		err;
 
@@ -838,7 +838,7 @@ os_file_get_block_size(
 	} else {
 		fblock_size = local_stat.st_blksize;
 	}
-#endif /* UNIV_LINUX */
+#endif /* __linux__ */
 #ifdef _WIN32
 
 	fblock_size = 0;
@@ -1629,7 +1629,7 @@ os_file_punch_hole_posix(
 
 	return(DB_IO_ERROR);
 
-#elif defined(UNIV_SOLARIS)
+#elif defined __sun__
 
 	// Use F_FREESP
 
@@ -5206,7 +5206,7 @@ os_file_set_nocache(
 	const char*	operation_name	MY_ATTRIBUTE((unused)))
 {
 	/* some versions of Solaris may not have DIRECTIO_ON */
-#if defined(UNIV_SOLARIS) && defined(DIRECTIO_ON)
+#if defined(__sun__) && defined(DIRECTIO_ON)
 	if (directio(fd, DIRECTIO_ON) == -1) {
 		int	errno_save = errno;
 
@@ -5223,7 +5223,7 @@ os_file_set_nocache(
 		if (errno_save == EINVAL) {
 			if (!warning_message_printed) {
 				warning_message_printed = true;
-# ifdef UNIV_LINUX
+# ifdef __linux__
 				ib::warn()
 					<< "Failed to set O_DIRECT on file"
 					<< file_name << "; " << operation_name
@@ -5232,12 +5232,12 @@ os_file_set_nocache(
 					"known to result in 'Invalid argument' "
 					"on Linux on tmpfs, "
 					"see MySQL Bug#26662.";
-# else /* UNIV_LINUX */
+# else /* __linux__ */
 				goto short_warning;
-# endif /* UNIV_LINUX */
+# endif /* __linux__ */
 			}
 		} else {
-# ifndef UNIV_LINUX
+# ifndef __linux__
 short_warning:
 # endif
 			ib::warn()
@@ -5247,7 +5247,7 @@ os_file_set_nocache(
 				<< ", continuing anyway.";
 		}
 	}
-#endif /* defined(UNIV_SOLARIS) && defined(DIRECTIO_ON) */
+#endif /* defined(__sun__) && defined(DIRECTIO_ON) */
 }
 
 #endif /* _WIN32 */

storage/innobase/os/os0proc.cc

 /*****************************************************************************
 
 Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
-Copyright (c) 2019, MariaDB Corporation.
+Copyright (c) 2019, 2022, MariaDB Corporation.
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -186,11 +186,11 @@ os_mem_free_large(
 #elif !defined OS_MAP_ANON
 	ut_free(ptr);
 #else
-# if defined(UNIV_SOLARIS)
+# if defined(__sun__)
 	if (munmap(static_cast<caddr_t>(ptr), size)) {
 # else
 	if (munmap(ptr, size)) {
-# endif /* UNIV_SOLARIS */
+# endif /* __sun__ */
 		ib::error() << "munmap(" << ptr << ", " << size << ") failed;"
 			" errno " << errno;
 	} else {

storage/innobase/row/row0merge.cc

@@ -3364,12 +3364,12 @@ row_merge_sort(
 	is used. MDEV-9356: innodb.innodb_bug53290 fails (crashes) on
 	sol10-64 in buildbot.
 	*/
-#ifndef UNIV_SOLARIS
+#ifndef __sun__
 	/* Progress report only for "normal" indexes. */
 	if (!(dup->index->type & DICT_FTS)) {
 		thd_progress_init(trx->mysql_thd, 1);
 	}
-#endif /* UNIV_SOLARIS */
+#endif /* __sun__ */
 
 	if (global_system_variables.log_warnings > 2) {
 		sql_print_information("InnoDB: Online DDL : merge-sorting"
@@ -3382,11 +3382,11 @@ row_merge_sort(
 		/* Report progress of merge sort to MySQL for
 		show processlist progress field */
 		/* Progress report only for "normal" indexes. */
-#ifndef UNIV_SOLARIS
+#ifndef __sun__
 		if (!(dup->index->type & DICT_FTS)) {
 			thd_progress_report(trx->mysql_thd, file->offset - num_runs, file->offset);
 		}
-#endif /* UNIV_SOLARIS */
+#endif /* __sun__ */
 
 		error = row_merge(trx, dup, file, block, tmpfd,
 				  &num_runs, run_offset, stage,
@@ -3411,11 +3411,11 @@ row_merge_sort(
 	ut_free(run_offset);
 
 	/* Progress report only for "normal" indexes. */
-#ifndef UNIV_SOLARIS
+#ifndef __sun__
 	if (!(dup->index->type & DICT_FTS)) {
 		thd_progress_end(trx->mysql_thd);
 	}
-#endif /* UNIV_SOLARIS */
+#endif /* __sun__ */
 
 	DBUG_RETURN(error);
 }

storage/innobase/srv/srv0start.cc

@@ -606,12 +606,12 @@ srv_undo_tablespace_create(
 
 	} else if (ret == FALSE) {
 		if (os_file_get_last_error(false) != OS_FILE_ALREADY_EXISTS
-#ifdef UNIV_AIX
+#ifdef _AIX
 			/* AIX 5.1 after security patch ML7 may have
 			errno set to 0 here, which causes our function
 			to return 100; work around that AIX problem */
 		    && os_file_get_last_error(false) != 100
-#endif /* UNIV_AIX */
+#endif
 		) {
 			ib::error() << "Can't create UNDO tablespace "
 				<< name;
@@ -1666,10 +1666,10 @@ dberr_t srv_start(bool create_new_db)
 			buf_flush_set_page_cleaner_thread_cnt(srv_n_page_cleaners);
 		}
 
-#ifdef UNIV_LINUX
+#ifdef __linux__
 		/* Wait for the setpriority() call to finish. */
 		os_event_wait(recv_sys->flush_end);
-#endif /* UNIV_LINUX */
+#endif /* __linux__ */
 		srv_start_state_set(SRV_START_STATE_IO);
 	}