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configure.ac: Check for sys/ipc.h and sys/sem.h.

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* configure.ac: Check for sys/ipc.h and sys/sem.h.
	* config.h.in: Regenerated.
	* configure: Likewise.
	* testsuite/testsuite_hooks.cc (_GLIBCXX_SYSV_SEM): Conditionally
	define.
	(sys/types.h): Include.
	(sys/ipc.h): Likewise.
	(sys/sem.h): Likewise.
	(__gnu_test::semun): New type.
	(__gnu_test::semaphore::sempaphore): New function.
	(__gnu_test::semaphore::~semaphore): Likewise.
	(__gnu_test::semaphore::wait): Likewise.
	(__gnu_test::semaphore::signal): Likewise.
	* testsuite/testsuite_hooks.h (__gnu_test::semaphore): New class.
	* testsuite/27_io/basic_filebuf/close/char/4789.cc: Use
	semaphores, not sleep.
	* testsuite/27_io/basic_filebuf/close/char/9964.cc: Likewise.
	* testsuite/27_io/basic_filebuf/imbue/char/13171-2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/imbue/char/13582-2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/imbue/wchar_t/14975-2.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/open/char/9507.cc: Likewise.
	* testsuite/27_io/basic_filebuf/underflow/char/10097.cc: Likewise.
	* testsuite/27_io/objects/char/7.cc: Likewise.
	* testsuite/27_io/objects/char/9661-1.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/7.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/9961-1.cc: Likewise.

From-SVN: r92865
This commit is contained in:
Mark Mitchell 2005-01-03 21:31:39 +00:00 committed by Mark Mitchell
parent e6abef6140
commit 8f1032c16a
17 changed files with 208 additions and 38 deletions
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30
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,33 @@
2005-01-03 Mark Mitchell <mark@codesourcery.com>
* configure.ac: Check for sys/ipc.h and sys/sem.h.
* config.h.in: Regenerated.
* configure: Likewise.
* testsuite/testsuite_hooks.cc (_GLIBCXX_SYSV_SEM): Conditionally
define.
(sys/types.h): Include.
(sys/ipc.h): Likewise.
(sys/sem.h): Likewise.
(__gnu_test::semun): New type.
(__gnu_test::semaphore::sempaphore): New function.
(__gnu_test::semaphore::~semaphore): Likewise.
(__gnu_test::semaphore::wait): Likewise.
(__gnu_test::semaphore::signal): Likewise.
* testsuite/testsuite_hooks.h (__gnu_test::semaphore): New class.
* testsuite/27_io/basic_filebuf/close/char/4789.cc: Use
semaphores, not sleep.
* testsuite/27_io/basic_filebuf/close/char/9964.cc: Likewise.
* testsuite/27_io/basic_filebuf/imbue/char/13171-2.cc: Likewise.
* testsuite/27_io/basic_filebuf/imbue/char/13582-2.cc: Likewise.
* testsuite/27_io/basic_filebuf/imbue/wchar_t/14975-2.cc:
Likewise.
* testsuite/27_io/basic_filebuf/open/char/9507.cc: Likewise.
* testsuite/27_io/basic_filebuf/underflow/char/10097.cc: Likewise.
* testsuite/27_io/objects/char/7.cc: Likewise.
* testsuite/27_io/objects/char/9661-1.cc: Likewise.
* testsuite/27_io/objects/wchar_t/7.cc: Likewise.
* testsuite/27_io/objects/wchar_t/9961-1.cc: Likewise.
2005-01-03 Paolo Carlini <pcarlini@suse.de>
* include/bits/istream.tcc (ignore(streamsize), ignore(streamsize,

6
libstdc++-v3/config.h.in
View File

@ -506,6 +506,9 @@
/* Define to 1 if you have the <sys/ioctl.h> header file. */
#undef HAVE_SYS_IOCTL_H
/* Define to 1 if you have the <sys/ipc.h> header file. */
#undef HAVE_SYS_IPC_H
/* Define to 1 if you have the <sys/isa_defs.h> header file. */
#undef HAVE_SYS_ISA_DEFS_H
@ -518,6 +521,9 @@
/* Define to 1 if you have the <sys/resource.h> header file. */
#undef HAVE_SYS_RESOURCE_H
/* Define to 1 if you have the <sys/sem.h> header file. */
#undef HAVE_SYS_SEM_H
/* Define to 1 if you have the <sys/stat.h> header file. */
#undef HAVE_SYS_STAT_H

4
libstdc++-v3/configure vendored
View File

@ -7927,9 +7927,11 @@ if $GLIBCXX_IS_NATIVE; then
for ac_header in nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \
machine/param.h sys/machine.h fp.h locale.h float.h inttypes.h gconv.h \
sys/types.h
sys/types.h sys/ipc.h sys/sem.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
if eval "test \"\${$as_ac_Header+set}\" = set"; then

2
libstdc++-v3/configure.ac
View File

@ -117,7 +117,7 @@ if $GLIBCXX_IS_NATIVE; then
# Check for available headers.
AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h machine/endian.h \
machine/param.h sys/machine.h fp.h locale.h float.h inttypes.h gconv.h \
sys/types.h])
sys/types.h sys/ipc.h sys/sem.h])
GLIBCXX_CHECK_COMPILER_FEATURES
GLIBCXX_CHECK_LINKER_FEATURES

8
libstdc++-v3/testsuite/27_io/basic_filebuf/close/char/4879.cc
View File

@ -41,6 +41,8 @@ test_04()
bool test __attribute__((unused)) = true;
const char* name = "tmp_fifo1";
semaphore s1, s2;
signal(SIGPIPE, SIG_IGN);
unlink(name);
@ -60,13 +62,15 @@ test_04()
else if (fval == 0)
{
std::ifstream ifs(name);
sleep(1);
s1.wait ();
ifs.close();
s2.signal ();
exit(0);
}
std::ofstream ofs(name);
sleep(2);
s1.signal ();
s2.wait ();
ofs.put('t');
/*

9
libstdc++-v3/testsuite/27_io/basic_filebuf/close/char/9964.cc
View File

@ -37,6 +37,7 @@ void test_07()
using namespace std;
using namespace __gnu_test;
bool test __attribute__((unused)) = true;
semaphore s1, s2;
const char* name = "tmp_fifo3";
@ -52,18 +53,18 @@ void test_07()
{
filebuf fbin;
fbin.open(name, ios_base::in);
sleep(2);
s1.wait ();
fbin.close();
s2.signal ();
exit(0);
}
filebuf fb;
sleep(1);
filebuf* ret = fb.open(name, ios_base::in | ios_base::out);
VERIFY( ret != NULL );
VERIFY( fb.is_open() );
sleep(3);
s1.signal ();
s2.wait ();
fb.sputc('a');
ret = fb.close();

7
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13171-2.cc
View File

@ -39,6 +39,7 @@ void test01()
const char* name = "tmp_fifo_13171-2";
unlink(name);
try_mkfifo(name, S_IRWXU);
semaphore s1, s2;
int child = fork();
if (child == 0)
@ -47,7 +48,8 @@ void test01()
fb.open(name, ios_base::out);
fb.sputc('S');
fb.pubsync();
sleep(2);
s1.signal ();
s2.wait ();
fb.close();
exit(0);
}
@ -55,12 +57,13 @@ void test01()
filebuf fb;
fb.pubimbue(loc_fr);
fb.open(name, ios_base::in);
sleep(1);
s1.wait ();
VERIFY( fb.is_open() );
fb.pubimbue(loc_en);
filebuf::int_type c = fb.sgetc();
fb.close();
VERIFY( c == 'S' );
s2.signal ();
}
int main()

4
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13582-2.cc
View File

@ -42,7 +42,7 @@ void test01()
const char* name = "tmp_fifo_13582-2";
unlink(name);
try_mkfifo(name, S_IRWXU);
int child = fork();
if (child == 0)
{
@ -50,14 +50,12 @@ void test01()
fbout.open(name, ios_base::out);
fbout.sputn("12345", 5);
fbout.pubsync();
sleep(2);
fbout.close();
exit(0);
}
filebuf fbin;
fbin.open(name, ios_base::in);
sleep(1);
filebuf::int_type n = fbin.sbumpc();
VERIFY( n == '1' );
fbin.pubimbue(loc_en);

14
libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/wchar_t/14975-2.cc
View File

@ -42,26 +42,28 @@ void test01()
unlink(name);
try_mkfifo(name, S_IRWXU);
semaphore s1;
int child = fork();
VERIFY( child != -1 );
if (child == 0)
{
filebuf fbin;
fbin.open(name, ios_base::in);
sleep(2);
{
filebuf fbin;
fbin.open(name, ios_base::in);
}
s1.signal ();
exit(0);
}
wfilebuf fb;
fb.pubimbue(loc_us);
sleep(1);
wfilebuf* ret = fb.open(name, ios_base::out);
VERIFY( ret != NULL );
VERIFY( fb.is_open() );
sleep(3);
s1.wait ();
try
{

9
libstdc++-v3/testsuite/27_io/basic_filebuf/open/char/9507.cc
View File

@ -37,30 +37,33 @@ void test_06()
using namespace __gnu_test;
bool test __attribute__((unused)) = true;
const char* name = "tmp_fifo2";
semaphore s1, s2;
signal(SIGPIPE, SIG_IGN);
unlink(name);
try_mkfifo(name, S_IRWXU);
if (!fork())
{
std::filebuf fbuf;
fbuf.open(name, std::ios_base::in);
fbuf.sgetc();
sleep(2);
s1.signal ();
fbuf.close();
s2.wait ();
exit(0);
}
std::filebuf fbuf;
sleep(1);
std::filebuf* r = fbuf.open(name,
std::ios_base::in
| std::ios_base::out
| std::ios_base::ate);
s1.wait ();
VERIFY( !fbuf.is_open() );
VERIFY( r == NULL );
s2.signal ();
}
int

5
libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/char/10097.cc
View File

@ -58,6 +58,7 @@ void test16()
VERIFY( false );
}
semaphore s1;
int fval = fork();
if (fval == -1)
{
@ -71,14 +72,13 @@ void test16()
VERIFY ( fbout.is_open() );
fbout.sputn("0123456789", 10);
fbout.pubsync();
sleep(2);
s1.wait ();
fbout.close();
exit(0);
}
UnderBuf fb;
fb.open(name, ios_base::in);
sleep(1);
fb.sgetc();
streamsize n = fb.pub_showmanyc();
@ -94,6 +94,7 @@ void test16()
}
fb.close();
s1.signal ();
}
int main()

8
libstdc++-v3/testsuite/27_io/objects/char/7.cc
View File

@ -42,26 +42,26 @@ void test07()
unlink(name);
try_mkfifo(name, S_IRWXU);
semaphore s1;
int child = fork();
VERIFY( child != -1 );
if (child == 0)
{
filebuf fbout;
sleep(1);
fbout.open(name, ios_base::in|ios_base::out);
s1.wait ();
VERIFY ( fbout.is_open() );
cout.rdbuf(&fbout);
fbout.sputc('a');
sleep(2);
// NB: fbout is *not* destroyed here!
exit(0);
}
filebuf fbin;
fbin.open(name, ios_base::in);
sleep(2);
s1.signal ();
filebuf::int_type c = fbin.sbumpc();
VERIFY( c != filebuf::traits_type::eof() );
VERIFY( c == filebuf::traits_type::to_int_type('a') );

8
libstdc++-v3/testsuite/27_io/objects/char/9661-1.cc
View File

@ -43,24 +43,25 @@ void test01()
unlink(name);
try_mkfifo(name, S_IRWXU);
semaphore s1, s2;
int child = fork();
VERIFY( child != -1 );
if (child == 0)
{
sleep(1);
FILE* file = fopen(name, "r+");
VERIFY (file != NULL);
fputs("Whatever\n", file);
fflush(file);
sleep(2);
s1.signal ();
s2.wait ();
fclose(file);
exit(0);
}
freopen(name, "r", stdin);
sleep(2);
s1.wait ();
int c1 = fgetc(stdin);
VERIFY( c1 != EOF );
@ -78,6 +79,7 @@ void test01()
int c5 = cin.rdbuf()->sgetc();
VERIFY( c5 != EOF );
VERIFY( c5 == c4 );
s2.signal ();
}
int main()

6
libstdc++-v3/testsuite/27_io/objects/wchar_t/7.cc
View File

@ -42,6 +42,7 @@ void test07()
unlink(name);
try_mkfifo(name, S_IRWXU);
semaphore s1;
int child = fork();
VERIFY( child != -1 );
@ -49,18 +50,17 @@ void test07()
if (child == 0)
{
wfilebuf fbout;
sleep(1);
fbout.open(name, ios_base::out);
s1.wait();
wcout.rdbuf(&fbout);
fbout.sputc(L'a');
sleep(2);
// NB: fbout is *not* destroyed here!
exit(0);
}
wfilebuf fbin;
fbin.open(name, ios_base::in);
sleep(2);
s1.signal ();
wfilebuf::int_type c = fbin.sbumpc();
VERIFY( c != wfilebuf::traits_type::eof() );
VERIFY( c == wfilebuf::traits_type::to_int_type(L'a') );

10
libstdc++-v3/testsuite/27_io/objects/wchar_t/9661-1.cc
View File

@ -43,23 +43,24 @@ void test01()
unlink(name);
try_mkfifo(name, S_IRWXU);
semaphore s1, s2;
int child = fork();
VERIFY( child != -1 );
if (child == 0)
{
sleep(1);
FILE* file = fopen(name, "w");
fputs("Whatever\n", file);
fflush(file);
sleep(2);
s1.signal ();
s2.wait ();
fclose(file);
exit(0);
}
freopen(name, "r", stdin);
sleep(2);
s1.wait ();
wint_t c1 = fgetwc(stdin);
VERIFY( c1 != WEOF );
@ -77,6 +78,7 @@ void test01()
wint_t c5 = wcin.rdbuf()->sgetc();
VERIFY( c5 != WEOF );
VERIFY( c5 == c4 );
s2.signal ();
}
int main()

92
libstdc++-v3/testsuite/testsuite_hooks.cc
View File

@ -42,6 +42,20 @@
#include <locale>
#include <cxxabi.h>
// If we have <sys/types.h>, <sys/ipc.h>, and <sys/sem.h>, then assume
// that System V semaphores are available.
#if defined(_GLIBCXX_HAVE_SYS_TYPES_H) \
&& defined(_GLIBCXX_HAVE_SYS_IPC_H) \
&& defined(_GLIBCXX_HAVE_SYS_SEM_H)
#define _GLIBCXX_SYSV_SEM
#endif
#ifdef _GLIBCXX_SYSV_SEM
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#endif
namespace __gnu_test
{
#ifdef _GLIBCXX_RES_LIMITS
@ -252,6 +266,84 @@ namespace __gnu_test
unsigned int assignment_operator::throw_on_ = 0;
unsigned int destructor::_M_count = 0;
int copy_tracker::next_id_ = 0;
#ifdef _GLIBCXX_SYSV_SEM
// This union is not declared in system headers. Instead, it must
// be defined by user programs.
union semun
{
int val;
struct semid_ds *buf;
unsigned short *array;
};
#endif
semaphore::semaphore ()
{
#ifdef _GLIBCXX_SYSV_SEM
// Remeber the PID for the process that created the semaphore set
// so that only one process will destroy the set.
pid_ = getpid();
// GLIBC does not define SEM_R and SEM_A.
#ifndef SEM_R
#define SEM_R 0400
#endif
#ifndef SEM_A
#define SEM_A 0200
#endif
// Get a semaphore set with one semaphore.
sem_set_ = semget (IPC_PRIVATE, 1, SEM_R | SEM_A);
if (sem_set_ == -1)
throw std::runtime_error ("could not obtain semaphore set");
// Initialize the semaphore.
union semun val;
val.val = 0;
if (semctl (sem_set_, 0, SETVAL, val) == -1)
throw std::runtime_error ("could not initialize semaphore");
#else
// There are no semaphores on this system. We have no way to mark
// a test as "unsupported" at runtime, so we just exit, pretending
// that the test passed.
exit (0);
#endif
}
semaphore::~semaphore ()
{
#ifdef _GLIBCXX_SYSV_SEM
union semun val;
// Destroy the semaphore set only in the process that created it.
if (pid_ == getpid ())
semctl (sem_set_, 0, IPC_RMID, val);
#endif
}
void
semaphore::signal ()
{
#ifdef _GLIBCXX_SYSV_SEM
struct sembuf op[1] = {
{ 0, 1, 0 }
};
if (semop (sem_set_, op, 1) == -1)
throw std::runtime_error ("could not signal semaphore");
#endif
}
void
semaphore::wait() {
#ifdef _GLIBCXX_SYSV_SEM
struct sembuf op[1] = {
{ 0, -1, SEM_UNDO }
};
if (semop (sem_set_, op, 1) == -1)
throw std::runtime_error ("could not wait for semaphore");
#endif
}
}; // namespace __gnu_test
namespace std

24
libstdc++-v3/testsuite/testsuite_hooks.h
View File

@ -380,6 +380,30 @@ namespace __gnu_test
return it == end ? v.end() : it;
}
};
// A binary semaphore for use across multiple processes.
class semaphore
{
public:
// Creates a binary semaphore. The semaphore is initially in the
// unsignaled state.
semaphore ();
// Destroy the semaphore.
~semaphore();
// Signal the semaphore. If there are processes blocked in
// "wait", exactly one will be permitted to proceed.
void signal ();
// Wait until the semaphore is signaled.
void wait ();
private:
int sem_set_;
pid_t pid_;
};
} // namespace __gnu_test
namespace std