aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/pthread
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/pthread')
-rw-r--r--sysdeps/pthread/Versions5
-rw-r--r--sysdeps/pthread/aio_misc.c5
-rw-r--r--sysdeps/pthread/lio_listio.c77
-rw-r--r--sysdeps/pthread/lio_listio64.c4
4 files changed, 70 insertions, 21 deletions
diff --git a/sysdeps/pthread/Versions b/sysdeps/pthread/Versions
new file mode 100644
index 0000000000..a71cffbed4
--- /dev/null
+++ b/sysdeps/pthread/Versions
@@ -0,0 +1,5 @@
+librt {
+ GLIBC_2.4 {
+ lio_listio; lio_listio64;
+ }
+}
diff --git a/sysdeps/pthread/aio_misc.c b/sysdeps/pthread/aio_misc.c
index 5c9ccb46d0..3e1dbe9c63 100644
--- a/sysdeps/pthread/aio_misc.c
+++ b/sysdeps/pthread/aio_misc.c
@@ -1,5 +1,5 @@
/* Handle general operations.
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004
+ Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -46,8 +46,7 @@ __aio_create_helper_thread (pthread_t *threadp, void *(*tf) (void *), void *arg)
(void) pthread_attr_destroy (&attr);
return ret;
-}
-
+}
#endif
static void add_request_to_runlist (struct requestlist *newrequest);
diff --git a/sysdeps/pthread/lio_listio.c b/sysdeps/pthread/lio_listio.c
index 29dc9d6eab..815840397e 100644
--- a/sysdeps/pthread/lio_listio.c
+++ b/sysdeps/pthread/lio_listio.c
@@ -1,5 +1,5 @@
/* Enqueue and list of read or write requests.
- Copyright (C) 1997,1998,1999,2000,2001,2003,2005
+ Copyright (C) 1997,1998,1999,2000,2001,2003,2005,2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -31,6 +31,9 @@
#define LIO_OPCODE_BASE 0
#endif
+#include <shlib-compat.h>
+
+
/* We need this special structure to handle asynchronous I/O. */
struct async_waitlist
{
@@ -40,12 +43,22 @@ struct async_waitlist
};
-int
-lio_listio (mode, list, nent, sig)
- int mode;
- struct aiocb *const list[];
- int nent;
- struct sigevent *sig;
+/* The code in glibc 2.1 to glibc 2.4 issued only one event when all
+ requests submitted with lio_listio finished. The existing practice
+ is to issue events for the individual requests as well. This is
+ what the new code does. */
+#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_4)
+# define LIO_MODE(mode) ((mode) & 127)
+# define NO_INDIVIDUAL_EVENT_P(mode) ((mode) & 128)
+#else
+# define LIO_MODE(mode) mode
+# define NO_INDIVIDUAL_EVENT_P(mode) 0
+#endif
+
+
+static int
+lio_listio_internal (int mode, struct aiocb *const list[], int nent,
+ struct sigevent *sig)
{
struct sigevent defsigev;
struct requestlist *requests[nent];
@@ -53,13 +66,6 @@ lio_listio (mode, list, nent, sig)
volatile int total = 0;
int result = 0;
- /* Check arguments. */
- if (mode != LIO_WAIT && mode != LIO_NOWAIT)
- {
- __set_errno (EINVAL);
- return -1;
- }
-
if (sig == NULL)
{
defsigev.sigev_notify = SIGEV_NONE;
@@ -74,7 +80,9 @@ lio_listio (mode, list, nent, sig)
for (cnt = 0; cnt < nent; ++cnt)
if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP)
{
- list[cnt]->aio_sigevent.sigev_notify = SIGEV_NONE;
+ if (NO_INDIVIDUAL_EVENT_P (mode))
+ list[cnt]->aio_sigevent.sigev_notify = SIGEV_NONE;
+
requests[cnt] = __aio_enqueue_request ((aiocb_union *) list[cnt],
(list[cnt]->aio_lio_opcode
| LIO_OPCODE_BASE));
@@ -100,7 +108,7 @@ lio_listio (mode, list, nent, sig)
locked forever. */
pthread_mutex_unlock (&__aio_requests_mutex);
- if (mode == LIO_NOWAIT)
+ if (LIO_MODE (mode) == LIO_NOWAIT)
{
#ifdef BROKEN_THREAD_SIGNALS
__aio_notify_only (sig,
@@ -112,7 +120,7 @@ lio_listio (mode, list, nent, sig)
return result;
}
- else if (mode == LIO_WAIT)
+ else if (LIO_MODE (mode) == LIO_WAIT)
{
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
struct waitlist waitlist[nent];
@@ -202,3 +210,38 @@ lio_listio (mode, list, nent, sig)
return result;
}
+
+
+#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_4)
+int
+attribute_compat_text_section
+__lio_listio_21 (int mode, struct aiocb *const list[], int nent,
+ struct sigevent *sig)
+{
+ /* Check arguments. */
+ if (mode != LIO_WAIT && mode != LIO_NOWAIT)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ return lio_listio_internal (mode | LIO_NO_INDIVIDUAL_EVENT, list, nent, sig);
+}
+compat_symbol (librt, __lio_listio_21, lio_listio, GLIBC_2_1);
+#endif
+
+
+int
+__lio_listio_item_notify (int mode, struct aiocb *const list[], int nent,
+ struct sigevent *sig)
+{
+ /* Check arguments. */
+ if (mode != LIO_WAIT && mode != LIO_NOWAIT)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ return lio_listio_internal (mode, list, nent, sig);
+}
+versioned_symbol (librt, __lio_listio_item_notify, lio_listio, GLIBC_2_4);
diff --git a/sysdeps/pthread/lio_listio64.c b/sysdeps/pthread/lio_listio64.c
index 4bec3f6195..c6b7cf7bd2 100644
--- a/sysdeps/pthread/lio_listio64.c
+++ b/sysdeps/pthread/lio_listio64.c
@@ -1,5 +1,5 @@
/* Enqueue and list of read or write requests, 64bit offset version.
- Copyright (C) 1997, 1998, 1999, 2003, 2005 Free Software Foundation, Inc.
+ Copyright (C) 1997,1998,1999,2003,2005,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -27,6 +27,8 @@
#include <aio_misc.h>
#define lio_listio lio_listio64
+#define __lio_listio_21 __lio_listio64_21
+#define __lio_listio_item_notify __lio_listio64_item_notify
#define aiocb aiocb64
#define LIO_OPCODE_BASE 128
#include <lio_listio.c>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 07:48:19 +0000