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Add test for madvise() being declared in C++ code, because it is not

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on Solaris even though it is available, and declare it ourselves in
that case. (Bug #7156)


configure.in:
  Add test for madvise() being declared when C++ compiler is used.
include/my_global.h:
  Handle madvise() being available but not declared in C++
isam/extra.c:
  Fix typo in define test
myisam/mi_extra.c:
  Fix typo in define test
sql/examples/ha_tina.cc:
  Test that we have madvise() before trying to call it.
This commit is contained in:
unknown 2005-08-31 10:08:55 -07:00
parent 7b8ab0e1cf
commit b34af8cde4
5 changed files with 18 additions and 5 deletions
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7
configure.in
View File

@ -2043,6 +2043,13 @@ AC_CACHE_CHECK([style of gethost* routines], mysql_cv_gethost_style,
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
# Test whether madvise() is declared in C++ code -- it is not on some
# systems, such as Solaris
AC_CHECK_DECLS(madvise, [], [], [#if HAVE_SYS_MMAN_H
#include <sys/types.h>
#include <sys/mman.h>
#endif])
# Do not treat warnings as errors if we are linking against other libc
# this is to work around gcc not being permissive on non-system includes
# with respect to ANSI C++

4
include/my_global.h
View File

@ -310,6 +310,10 @@ C_MODE_END
#undef setrlimit
#define setrlimit cma_setrlimit64
#endif
/* Declare madvise where it is not declared for C++, like Solaris */
#if HAVE_MADVISE && !HAVE_DECL_MADVISE && defined(__cplusplus)
extern "C" int madvise(void *addr, size_t len, int behav);
#endif
#ifdef __QNXNTO__
/* This has to be after include limits.h */

4
isam/extra.c
View File

@ -67,7 +67,7 @@ int nisam_extra(N_INFO *info, enum ha_extra_function function)
break;
}
#endif
#if defined(HAVE_MMAP) && defined(HAVE_MADVICE)
#if defined(HAVE_MMAP) && defined(HAVE_MADVISE)
if ((info->options & HA_OPTION_COMPRESS_RECORD))
{
pthread_mutex_lock(&info->s->intern_lock);
@ -144,7 +144,7 @@ int nisam_extra(N_INFO *info, enum ha_extra_function function)
info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED);
error=end_io_cache(&info->rec_cache);
}
#if defined(HAVE_MMAP) && defined(HAVE_MADVICE)
#if defined(HAVE_MMAP) && defined(HAVE_MADVISE)
if (info->opt_flag & MEMMAP_USED)
madvise(info->s->file_map,info->s->state.data_file_length,MADV_RANDOM);
#endif

6
myisam/mi_extra.c
View File

@ -62,7 +62,7 @@ int mi_extra(MI_INFO *info, enum ha_extra_function function, void *extra_arg)
}
if (share->base.blobs)
mi_alloc_rec_buff(info, -1, &info->rec_buff);
#if defined(HAVE_MMAP) && defined(HAVE_MADVICE)
#if defined(HAVE_MMAP) && defined(HAVE_MADVISE)
if (info->opt_flag & MEMMAP_USED)
madvise(share->file_map,share->state.state.data_file_length,MADV_RANDOM);
#endif
@ -93,7 +93,7 @@ int mi_extra(MI_INFO *info, enum ha_extra_function function, void *extra_arg)
my_errno=EACCES;
break;
}
#if defined(HAVE_MMAP) && defined(HAVE_MADVICE)
#if defined(HAVE_MMAP) && defined(HAVE_MADVISE)
if ((share->options & HA_OPTION_COMPRESS_RECORD))
{
pthread_mutex_lock(&share->intern_lock);
@ -177,7 +177,7 @@ int mi_extra(MI_INFO *info, enum ha_extra_function function, void *extra_arg)
error=end_io_cache(&info->rec_cache);
/* Sergei will insert full text index caching here */
}
#if defined(HAVE_MMAP) && defined(HAVE_MADVICE)
#if defined(HAVE_MMAP) && defined(HAVE_MADVISE)
if (info->opt_flag & MEMMAP_USED)
madvise(share->file_map,share->state.state.data_file_length,MADV_RANDOM);
#endif

2
sql/examples/ha_tina.cc
View File

@ -608,7 +608,9 @@ int ha_tina::rnd_init(bool scan)
current_position= next_position= 0;
records= 0;
chain_ptr= chain;
#ifdef HAVE_MADVISE
(void)madvise(share->mapped_file,share->file_stat.st_size,MADV_SEQUENTIAL);
#endif
DBUG_RETURN(0);
}