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-rw-r--r--src/core/lib/iomgr/timer_uv.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/src/core/lib/iomgr/timer_uv.c b/src/core/lib/iomgr/timer_uv.c
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+++ b/src/core/lib/iomgr/timer_uv.c
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+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/iomgr/port.h"
+
+#if GRPC_UV
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+
+#include "src/core/lib/iomgr/timer.h"
+
+#include <uv.h>
+
+static void timer_close_callback(uv_handle_t *handle) { gpr_free(handle); }
+
+static void stop_uv_timer(uv_timer_t *handle) {
+ uv_timer_stop(handle);
+ uv_unref((uv_handle_t *)handle);
+ uv_close((uv_handle_t *)handle, timer_close_callback);
+}
+
+void run_expired_timer(uv_timer_t *handle) {
+ grpc_timer *timer = (grpc_timer *)handle->data;
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ GPR_ASSERT(!timer->triggered);
+ timer->triggered = 1;
+ grpc_exec_ctx_sched(&exec_ctx, &timer->closure, GRPC_ERROR_NONE, NULL);
+ stop_uv_timer(handle);
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+
+void grpc_timer_init(grpc_exec_ctx *exec_ctx, grpc_timer *timer,
+ gpr_timespec deadline, grpc_iomgr_cb_func timer_cb,
+ void *timer_cb_arg, gpr_timespec now) {
+ uint64_t timeout;
+ uv_timer_t *uv_timer;
+ grpc_closure_init(&timer->closure, timer_cb, timer_cb_arg);
+ if (gpr_time_cmp(deadline, now) <= 0) {
+ timer->triggered = 1;
+ grpc_exec_ctx_sched(exec_ctx, &timer->closure, GRPC_ERROR_NONE, NULL);
+ return;
+ }
+ timer->triggered = 0;
+ timeout = (uint64_t)gpr_time_to_millis(gpr_time_sub(deadline, now));
+ uv_timer = gpr_malloc(sizeof(uv_timer_t));
+ uv_timer_init(uv_default_loop(), uv_timer);
+ uv_timer->data = timer;
+ timer->uv_timer = uv_timer;
+ uv_timer_start(uv_timer, run_expired_timer, timeout, 0);
+}
+
+void grpc_timer_cancel(grpc_exec_ctx *exec_ctx, grpc_timer *timer) {
+ if (!timer->triggered) {
+ timer->triggered = 1;
+ grpc_exec_ctx_sched(exec_ctx, &timer->closure, GRPC_ERROR_CANCELLED, NULL);
+ stop_uv_timer((uv_timer_t *)timer->uv_timer);
+ }
+}
+
+bool grpc_timer_check(grpc_exec_ctx *exec_ctx, gpr_timespec now,
+ gpr_timespec *next) {
+ return false;
+}
+
+void grpc_timer_list_init(gpr_timespec now) {}
+void grpc_timer_list_shutdown(grpc_exec_ctx *exec_ctx) {}
+
+#endif /* GRPC_UV */