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Message-Id: <92a8085e31df9f3e313583980256ae38746f3d3f.1409524413.git.Jens.Gustedt@inria.fr>
Date: Mon, 01 Sep 2014 00:47:10 +0200
From: Jens Gustedt <Jens.Gustedt@...ia.fr>
To: musl@...ts.openwall.com
Subject: [PATCH 6/9] add the functions for cnd_t
Because of the clear separation for private pthread_cond_t these
interfaces are quite simple and direct.
---
src/thread/cnd_broadcast.c | 10 ++++++++++
src/thread/cnd_destroy.c | 5 +++++
src/thread/cnd_init.c | 7 +++++++
src/thread/cnd_signal.c | 10 ++++++++++
src/thread/cnd_timedwait.c | 14 ++++++++++++++
src/thread/cnd_wait.c | 10 ++++++++++
6 files changed, 56 insertions(+)
create mode 100644 src/thread/cnd_broadcast.c
create mode 100644 src/thread/cnd_destroy.c
create mode 100644 src/thread/cnd_init.c
create mode 100644 src/thread/cnd_signal.c
create mode 100644 src/thread/cnd_timedwait.c
create mode 100644 src/thread/cnd_wait.c
diff --git a/src/thread/cnd_broadcast.c b/src/thread/cnd_broadcast.c
new file mode 100644
index 0000000..c8cf311
--- /dev/null
+++ b/src/thread/cnd_broadcast.c
@@ -0,0 +1,10 @@
+#include <threads.h>
+
+int __private_cond_signal(cnd_t *, int);
+
+int cnd_broadcast(cnd_t * cnd) {
+ /* This internal function never fails, so it always returns
+ * 0. Under the assumption that thrd_success is 0 this is a
+ * tail call. */
+ return __private_cond_signal(cnd, -1);
+}
diff --git a/src/thread/cnd_destroy.c b/src/thread/cnd_destroy.c
new file mode 100644
index 0000000..d960db6
--- /dev/null
+++ b/src/thread/cnd_destroy.c
@@ -0,0 +1,5 @@
+#include <threads.h>
+
+void cnd_destroy(cnd_t *cnd) {
+ /* For private cv this is a no-op */
+}
diff --git a/src/thread/cnd_init.c b/src/thread/cnd_init.c
new file mode 100644
index 0000000..618b649
--- /dev/null
+++ b/src/thread/cnd_init.c
@@ -0,0 +1,7 @@
+#include <threads.h>
+
+int cnd_init(cnd_t * c)
+{
+ *c = (cnd_t){ 0 };
+ return thrd_success;
+}
diff --git a/src/thread/cnd_signal.c b/src/thread/cnd_signal.c
new file mode 100644
index 0000000..c31282f
--- /dev/null
+++ b/src/thread/cnd_signal.c
@@ -0,0 +1,10 @@
+#include <threads.h>
+
+int __private_cond_signal(cnd_t *, int);
+
+int cnd_signal(cnd_t * cnd) {
+ /* This internal function never fails, so it always returns
+ * 0. Under the assumption that thrd_success is 0 this is a
+ * tail call. */
+ return __private_cond_signal(cnd, 1);
+}
diff --git a/src/thread/cnd_timedwait.c b/src/thread/cnd_timedwait.c
new file mode 100644
index 0000000..d69a4f1
--- /dev/null
+++ b/src/thread/cnd_timedwait.c
@@ -0,0 +1,14 @@
+#include <threads.h>
+#include <errno.h>
+
+int __pthread_cond_timedwait(cnd_t *restrict c, mtx_t *restrict m, const struct timespec *restrict ts);
+
+int cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mutex, const struct timespec *restrict ts) {
+ int ret = __pthread_cond_timedwait(cond, mutex, ts);
+ switch (ret) {
+ /* May also return EINVAL or EPERM. */
+ default: return thrd_error;
+ case 0: return thrd_success;
+ case ETIMEDOUT: return thrd_timedout;
+ }
+}
diff --git a/src/thread/cnd_wait.c b/src/thread/cnd_wait.c
new file mode 100644
index 0000000..91e89db
--- /dev/null
+++ b/src/thread/cnd_wait.c
@@ -0,0 +1,10 @@
+#include <threads.h>
+
+int cnd_wait(cnd_t *cond, mtx_t *mutex)
+{
+ /* Calling cnd_timedwait with a null pointer is an
+ extension. Such a call is convenient, here since it avoids to
+ repeat the case analysis that is already done for
+ cnd_timedwait. */
+ return cnd_timedwait(cond, mutex, 0);
+}
--
1.7.10.4
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