diff options
Diffstat (limited to 'libiberty')
| -rw-r--r-- | libiberty/ChangeLog | 12 | ||||
| -rw-r--r-- | libiberty/Makefile.in | 11 | ||||
| -rw-r--r-- | libiberty/config.in | 6 | ||||
| -rwxr-xr-x | libiberty/configure | 8 | ||||
| -rw-r--r-- | libiberty/configure.ac | 6 | ||||
| -rw-r--r-- | libiberty/fopen_unlocked.c | 93 | ||||
| -rw-r--r-- | libiberty/functions.texi | 30 |
7 files changed, 159 insertions, 7 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index 169c821..df6106e 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -1,3 +1,15 @@ +2005-04-11 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * Makefile.in (CFILES): Add fopen_unlocked.c. + (REQUIRED_OFILES): Add ./fopen_unlocked.o. + Regenerate dependencies. + + * configure.ac: Check for stdio_ext.h and __fsetlocking. + + * fopen_unlocked.c: New file. + + * functions.texi, configure, config.in: Regenerate. + 2005-04-04 Ian Lance Taylor <ian@airs.com> * testsuite/test-pexecute.c (TEST_PEX_RUN): Move variable diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in index 78957ee..6804015 100644 --- a/libiberty/Makefile.in +++ b/libiberty/Makefile.in @@ -132,6 +132,7 @@ CFILES = alloca.c argv.c asprintf.c atexit.c \ cp-demint.c cplus-dem.c \ dyn-string.c \ fdmatch.c ffs.c fibheap.c floatformat.c fnmatch.c \ + fopen_unlocked.c \ getcwd.c getopt.c getopt1.c getpagesize.c getpwd.c getruntime.c \ gettimeofday.c \ hashtab.c hex.c \ @@ -165,6 +166,7 @@ REQUIRED_OFILES = ./regex.o ./cplus-dem.o ./cp-demangle.o ./md5.o \ ./choose-temp.o ./concat.o ./cp-demint.o \ ./dyn-string.o \ ./fdmatch.o ./fibheap.o ./floatformat.o ./fnmatch.o \ + ./fopen_unlocked.o \ ./getopt.o ./getopt1.o ./getpwd.o ./getruntime.o \ ./hashtab.o ./hex.o \ ./lbasename.o ./lrealpath.o \ @@ -584,6 +586,13 @@ $(CONFIGURED_OFILES): stamp-picdir else true; fi $(COMPILE.c) $(srcdir)/fnmatch.c $(OUTPUT_OPTION) +./fopen_unlocked.o: $(srcdir)/fopen_unlocked.c config.h $(INCDIR)/ansidecl.h \ + $(INCDIR)/libiberty.h + if [ x"$(PICFLAG)" != x ]; then \ + $(COMPILE.c) $(PICFLAG) $(srcdir)/fopen_unlocked.c -o pic/$@; \ + else true; fi + $(COMPILE.c) $(srcdir)/fopen_unlocked.c $(OUTPUT_OPTION) + ./getcwd.o: $(srcdir)/getcwd.c config.h if [ x"$(PICFLAG)" != x ]; then \ $(COMPILE.c) $(PICFLAG) $(srcdir)/getcwd.c -o pic/$@; \ @@ -1041,7 +1050,7 @@ $(CONFIGURED_OFILES): stamp-picdir else true; fi $(COMPILE.c) $(srcdir)/vsprintf.c $(OUTPUT_OPTION) -./waitpid.o: $(srcdir)/waitpid.c config.h +./waitpid.o: $(srcdir)/waitpid.c config.h $(INCDIR)/ansidecl.h if [ x"$(PICFLAG)" != x ]; then \ $(COMPILE.c) $(PICFLAG) $(srcdir)/waitpid.c -o pic/$@; \ else true; fi diff --git a/libiberty/config.in b/libiberty/config.in index ad71e76..d50aff9 100644 --- a/libiberty/config.in +++ b/libiberty/config.in @@ -151,6 +151,9 @@ /* Define to 1 if you have the <stdint.h> header file. */ #undef HAVE_STDINT_H +/* Define to 1 if you have the <stdio_ext.h> header file. */ +#undef HAVE_STDIO_EXT_H + /* Define to 1 if you have the <stdlib.h> header file. */ #undef HAVE_STDLIB_H @@ -322,6 +325,9 @@ /* Define if you have the _system_configuration variable. */ #undef HAVE__SYSTEM_CONFIGURATION +/* Define to 1 if you have the `__fsetlocking' function. */ +#undef HAVE___FSETLOCKING + /* Define if the host machine stores words of multi-word integers in big-endian order. */ #undef HOST_WORDS_BIG_ENDIAN diff --git a/libiberty/configure b/libiberty/configure index 3aa3963..adc0962 100755 --- a/libiberty/configure +++ b/libiberty/configure @@ -3540,7 +3540,8 @@ host_makefile_frag=${frag} -for ac_header in sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h + +for ac_header in sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h stdio_ext.h do as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_header" >&5 @@ -4818,7 +4819,7 @@ vars="sys_errlist sys_nerr sys_siglist" checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday" checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp" -checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4" +checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking" # These are neither executed nor required, but they help keep # autoheader happy without adding a bunch of text to acconfig.h. @@ -4890,6 +4891,7 @@ if test "x" = "y"; then + for ac_func in asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \ getcwd getpagesize gettimeofday index insque mkstemps memchr memcmp memcpy \ memmove mempcpy memset putenv random rename rindex sigsetmask \ @@ -4898,7 +4900,7 @@ for ac_func in asprintf atexit basename bcmp bcopy bsearch bzero calloc clock \ vsprintf waitpid getrusage on_exit psignal strerror strsignal \ sysconf times sbrk gettimeofday ffs snprintf vsnprintf \ pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \ - realpath canonicalize_file_name + realpath canonicalize_file_name __fsetlocking do as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh` echo "$as_me:$LINENO: checking for $ac_func" >&5 diff --git a/libiberty/configure.ac b/libiberty/configure.ac index 9f47491..cd31f6a 100644 --- a/libiberty/configure.ac +++ b/libiberty/configure.ac @@ -159,7 +159,7 @@ AC_SUBST_FILE(host_makefile_frag) # It's OK to check for header files. Although the compiler may not be # able to link anything, it had better be able to at least compile # something. -AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h) +AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h malloc.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h sys/pstat.h sys/sysmp.h sys/sysinfo.h machine/hal_sysinfo.h sys/table.h sys/sysctl.h sys/systemcfg.h stdint.h stdio_ext.h) AC_HEADER_SYS_WAIT AC_HEADER_TIME @@ -268,7 +268,7 @@ vars="sys_errlist sys_nerr sys_siglist" checkfuncs="getrusage on_exit psignal strerror strsignal sysconf times sbrk gettimeofday" checkfuncs="$checkfuncs realpath canonicalize_file_name pstat_getstatic pstat_getdynamic sysmp" -checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4" +checkfuncs="$checkfuncs getsysinfo table sysctl wait3 wait4 __fsetlocking" # These are neither executed nor required, but they help keep # autoheader happy without adding a bunch of text to acconfig.h. @@ -281,7 +281,7 @@ if test "x" = "y"; then vsprintf waitpid getrusage on_exit psignal strerror strsignal \ sysconf times sbrk gettimeofday ffs snprintf vsnprintf \ pstat_getstatic pstat_getdynamic sysmp getsysinfo table sysctl wait3 wait4 \ - realpath canonicalize_file_name) + realpath canonicalize_file_name __fsetlocking) AC_DEFINE(HAVE_SYS_ERRLIST, 1, [Define if you have the sys_errlist variable.]) AC_DEFINE(HAVE_SYS_NERR, 1, [Define if you have the sys_nerr variable.]) AC_DEFINE(HAVE_SYS_SIGLIST, 1, [Define if you have the sys_siglist variable.]) diff --git a/libiberty/fopen_unlocked.c b/libiberty/fopen_unlocked.c new file mode 100644 index 0000000..b193dfd --- /dev/null +++ b/libiberty/fopen_unlocked.c @@ -0,0 +1,93 @@ +/* Implement fopen_unlocked and related functions. + Copyright (C) 2005 Free Software Foundation, Inc. + Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>. + +This file is part of the libiberty library. +Libiberty is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public +License as published by the Free Software Foundation; either +version 2 of the License, or (at your option) any later version. + +Libiberty is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with libiberty; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* + +@deftypefn Extension FILE * fopen_unlocked (const char *@var{path}, const char * @var{mode}) + +Opens and returns a @code{FILE} pointer via @code{fopen}. If the +operating system supports it, ensure that the stream is setup to avoid +any multi-threaded locking. Otherwise return the @code{FILE} pointer +unchanged. + +@end deftypefn + +@deftypefn Extension FILE * fdopen_unlocked (int @var{fildes}, const char * @var{mode}) + +Opens and returns a @code{FILE} pointer via @code{fdopen}. If the +operating system supports it, ensure that the stream is setup to avoid +any multi-threaded locking. Otherwise return the @code{FILE} pointer +unchanged. + +@end deftypefn + +@deftypefn Extension FILE * freopen_unlocked (const char * @var{path}, const char * @var{mode}, FILE * @var{stream}) + +Opens and returns a @code{FILE} pointer via @code{freopen}. If the +operating system supports it, ensure that the stream is setup to avoid +any multi-threaded locking. Otherwise return the @code{FILE} pointer +unchanged. + +@end deftypefn + +*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif +#include <stdio.h> +#ifdef HAVE_STDIO_EXT_H +#include <stdio_ext.h> +#endif + +#include "libiberty.h" + +FILE * +fopen_unlocked (const char *path, const char *mode) +{ + FILE *const fp = fopen (path, mode); +#if defined(HAVE___FSETLOCKING) && defined(FSETLOCKING_BYCALLER) + if (fp) + __fsetlocking (fp, FSETLOCKING_BYCALLER); +#endif + return fp; +} + +FILE * +fdopen_unlocked (int fildes, const char *mode) +{ + FILE *const fp = fdopen (fildes, mode); +#if defined(HAVE___FSETLOCKING) && defined(FSETLOCKING_BYCALLER) + if (fp) + __fsetlocking (fp, FSETLOCKING_BYCALLER); +#endif + return fp; +} + +FILE * +freopen_unlocked (const char *path, const char *mode, FILE *stream) +{ + FILE *const fp = freopen (path, mode, stream); +#if defined(HAVE___FSETLOCKING) && defined(FSETLOCKING_BYCALLER) + if (fp) + __fsetlocking (fp, FSETLOCKING_BYCALLER); +#endif + return fp; +} diff --git a/libiberty/functions.texi b/libiberty/functions.texi index 75f9824..47d40ec 100644 --- a/libiberty/functions.texi +++ b/libiberty/functions.texi @@ -362,6 +362,16 @@ and inode numbers. @end deftypefn +@c fopen_unlocked.c:32 +@deftypefn Extension FILE * fdopen_unlocked (int @var{fildes}, const char * @var{mode}) + +Opens and returns a @code{FILE} pointer via @code{fdopen}. If the +operating system supports it, ensure that the stream is setup to avoid +any multi-threaded locking. Otherwise return the @code{FILE} pointer +unchanged. + +@end deftypefn + @c ffs.c:3 @deftypefn Supplemental int ffs (int @var{valu}) @@ -421,6 +431,16 @@ Ignores case when performing the comparison. @end deftypefn +@c fopen_unlocked.c:23 +@deftypefn Extension FILE * fopen_unlocked (const char *@var{path}, const char * @var{mode}) + +Opens and returns a @code{FILE} pointer via @code{fopen}. If the +operating system supports it, ensure that the stream is setup to avoid +any multi-threaded locking. Otherwise return the @code{FILE} pointer +unchanged. + +@end deftypefn + @c argv.c:94 @deftypefn Extension void freeargv (char **@var{vector}) @@ -431,6 +451,16 @@ itself. @end deftypefn +@c fopen_unlocked.c:41 +@deftypefn Extension FILE * freopen_unlocked (const char * @var{path}, const char * @var{mode}, FILE * @var{stream}) + +Opens and returns a @code{FILE} pointer via @code{freopen}. If the +operating system supports it, ensure that the stream is setup to avoid +any multi-threaded locking. Otherwise return the @code{FILE} pointer +unchanged. + +@end deftypefn + @c getruntime.c:82 @deftypefn Replacement long get_run_time (void) |