lwip: Enable thread support

Now that all of the syslinux support code has been built for
threads enable using that support in lwip.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/core/lwip/src/arch/sys_arch.c b/core/lwip/src/arch/sys_arch.c
new file mode 100644
index 00000000..b0bc0b6f
--- /dev/null
+++ b/core/lwip/src/arch/sys_arch.c
@@ -0,0 +1,85 @@
+#include "arch/sys_arch.h"
+#include "lwip/sys.h"
+#include "lwip/mem.h"
+#include <stdlib.h>
+#include <thread.h>
+
+void sys_init(void)
+{
+}
+
+sys_sem_t sys_sem_new(u8_t count)
+{
+    sys_sem_t sem = malloc(sizeof(struct semaphore));
+    if (!sem)
+	return NULL;
+
+    sem_init(sem, count);
+    return sem;
+}
+
+void sys_sem_free(sys_sem_t sem)
+{
+    free(sem);
+}
+
+u32_t sys_arch_sem_wait(sys_sem_t sem, u32_t timeout)
+{
+    mstime_t rv;
+
+    rv = sem_down(sem, timeout);
+    if (rv == (mstime_t)-1)
+	return SYS_ARCH_TIMEOUT;
+    else
+	return rv;
+}
+
+sys_mbox_t sys_mbox_new(int size)
+{
+    struct mailbox *mbox;
+
+    mbox = malloc(sizeof(struct mailbox) + size*sizeof(void *));
+    if (!mbox)
+	return NULL;
+
+    mbox_init(mbox, size);
+    return mbox;
+}
+
+void sys_mbox_free(sys_mbox_t mbox)
+{
+    free(mbox);
+}
+
+void sys_mbox_post(sys_mbox_t mbox, void *msg)
+{
+    mbox_post(mbox, msg, 0);
+}
+
+err_t sys_mbox_trypost(sys_mbox_t mbox, void *msg)
+{
+    return mbox_post(mbox, msg, -1);
+}
+
+u32_t sys_arch_mbox_fetch(sys_mbox_t mbox, void **msg, u32_t timeout)
+{
+    mstime_t rv;
+
+    rv = mbox_fetch(mbox, msg, timeout);
+    if (rv == (mstime_t)-1)
+	return SYS_ARCH_TIMEOUT;
+    else
+	return rv;
+}
+
+u32_t sys_arch_mbox_tryfetch(sys_mbox_t mbox, void **msg)
+{
+    return mbox_fetch(mbox, msg, -1);
+}
+
+sys_thread_t sys_thread_new(char *name, void (*thread)(void *),
+			     void *arg, int stacksize, int prio)
+{
+    return start_thread(name, stacksize, prio, thread, arg);
+}
+