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Message-Id: <09db1c648c8e0084b26a3c73c1d59ffa43bec843.1409423162.git.Jens.Gustedt@inria.fr>
Date: Sat, 30 Aug 2014 20:47:03 +0200
From: Jens Gustedt <Jens.Gustedt@...ia.fr>
To: musl@...ts.openwall.com
Subject: [PATCH 4/8] add the functions for tss_t and once_flag
These all have POSIX equivalents but with some changes to the interfaces.
---
src/thread/call_once.c | 7 +++++++
src/thread/tss_create.c | 11 +++++++++++
src/thread/tss_delete.c | 7 +++++++
src/thread/tss_set.c | 13 +++++++++++++
4 files changed, 38 insertions(+)
create mode 100644 src/thread/call_once.c
create mode 100644 src/thread/tss_create.c
create mode 100644 src/thread/tss_delete.c
create mode 100644 src/thread/tss_set.c
diff --git a/src/thread/call_once.c b/src/thread/call_once.c
new file mode 100644
index 0000000..26c735c
--- /dev/null
+++ b/src/thread/call_once.c
@@ -0,0 +1,7 @@
+#include <threads.h>
+
+int __pthread_once(once_flag *, void (*)(void));
+
+void (call_once)(once_flag *flag, void (*func)(void)) {
+ (void)__pthread_once(flag, func);
+}
diff --git a/src/thread/tss_create.c b/src/thread/tss_create.c
new file mode 100644
index 0000000..af8772a
--- /dev/null
+++ b/src/thread/tss_create.c
@@ -0,0 +1,11 @@
+#include <threads.h>
+
+int __pthread_key_create(tss_t *k, void (*dtor)(void *));
+
+int tss_create(tss_t *tss, tss_dtor_t dtor)
+{
+ /* Different error returns are possible. C glues them together into
+ just failure notification. Can't be optimized to a tail call,
+ unless thrd_error equals EAGAIN. */
+ return __pthread_key_create(tss, dtor) ? thrd_error : thrd_success;
+}
diff --git a/src/thread/tss_delete.c b/src/thread/tss_delete.c
new file mode 100644
index 0000000..7d7aacb
--- /dev/null
+++ b/src/thread/tss_delete.c
@@ -0,0 +1,7 @@
+#include <threads.h>
+
+int __pthread_key_delete(tss_t k);
+
+void (tss_delete)(tss_t key) {
+ (void)__pthread_key_delete(key);
+}
diff --git a/src/thread/tss_set.c b/src/thread/tss_set.c
new file mode 100644
index 0000000..70c4fb7
--- /dev/null
+++ b/src/thread/tss_set.c
@@ -0,0 +1,13 @@
+#include "pthread_impl.h"
+#include <threads.h>
+
+int tss_set(tss_t k, void *x)
+{
+ struct pthread *self = __pthread_self();
+ /* Avoid unnecessary COW */
+ if (self->tsd[k] != x) {
+ self->tsd[k] = x;
+ self->tsd_used = 1;
+ }
+ return thrd_success;
+}
--
1.7.10.4
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