Integrate libuv into build system

1 files changed, 331 insertions, 0 deletions

diff --git a/deps/uv/test/benchmark-pump.c b/deps/uv/test/benchmark-pump.c
new file mode 100644
index 0000000000..69773e1313
--- /dev/null
+++ b/deps/uv/test/benchmark-pump.c
@@ -0,0 +1,331 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "task.h"
+#include "../uv.h"
+
+#include <math.h>
+#include <stdio.h>
+
+
+#define TARGET_CONNECTIONS          100
+#define WRITE_BUFFER_SIZE           8192
+#define MAX_SIMULTANEOUS_CONNECTS   100
+
+#define PRINT_STATS                 0
+#define STATS_INTERVAL              1000 /* msec */
+#define STATS_COUNT                 5
+
+
+static void do_write(uv_handle_t* handle);
+static void maybe_connect_some();
+
+static uv_req_t* req_alloc();
+static void req_free(uv_req_t* uv_req);
+
+static uv_buf buf_alloc(uv_handle_t* handle, size_t size);
+static void buf_free(uv_buf uv_buf);
+
+
+static struct sockaddr_in server_addr;
+
+static int64_t start_time;
+
+static int max_connect_socket = 0;
+static int read_sockets = 0;
+static int write_sockets = 0;
+
+static int64_t nrecv = 0;
+static int64_t nrecv_total = 0;
+static int64_t nsent = 0;
+static int64_t nsent_total = 0;
+
+static int stats_left = 0;
+
+static char write_buffer[WRITE_BUFFER_SIZE];
+
+static uv_handle_t read_handles[TARGET_CONNECTIONS];
+static uv_handle_t write_handles[TARGET_CONNECTIONS];
+
+
+static double gbit(int64_t bytes, int64_t passed_ms) {
+  double gbits = ((double)bytes / (1024 * 1024 * 1024)) * 8;
+  return gbits / ((double)passed_ms / 1000);
+}
+
+
+static void show_stats(uv_req_t *req, int64_t skew, int status) {
+  int64_t msec = STATS_INTERVAL + skew;
+
+#if PRINT_STATS
+  LOGF("connections: %d, read: %.1f gbit/s, write: %.1f gbit/s\n",
+       read_sockets,
+       gbit(nrecv, msec),
+       gbit(nsent, msec));
+#endif
+
+  /* Exit if the show is over */
+  if (!--stats_left) {
+
+    uv_update_time();
+    int64_t diff = uv_now() - start_time;
+
+    LOGF("pump_%d: %.1f gbit/s\n", read_sockets,
+        gbit(nrecv_total, diff));
+
+    exit(0);
+  }
+
+  /* Reset read and write counters */
+  nrecv = 0;
+  nsent = 0;
+
+  uv_timeout(req, (STATS_INTERVAL - skew > 0)
+                   ? STATS_INTERVAL - skew
+                   : 0);
+}
+
+
+static void start_stats_collection() {
+  uv_req_t* req = req_alloc();
+  int r;
+
+  /* Show-stats timeout */
+  stats_left = STATS_COUNT;
+  uv_req_init(req, NULL, (void*)show_stats);
+  r = uv_timeout(req, STATS_INTERVAL);
+  ASSERT(r == 0);
+}
+
+
+void close_cb(uv_handle_t* handle, int status) {
+  ASSERT(status == 0);
+}
+
+
+static void read_cb(uv_handle_t* handle, int bytes, uv_buf buf) {
+  ASSERT(bytes >= 0);
+
+  buf_free(buf);
+
+  nrecv += bytes;
+  nrecv_total += bytes;
+}
+
+
+static void write_cb(uv_req_t *req, int status) {
+  uv_buf* buf = (uv_buf*) req->data;
+
+  ASSERT(status == 0);
+
+  req_free(req);
+
+  nsent += sizeof write_buffer;
+  nsent_total += sizeof write_buffer;
+
+  do_write(req->handle);
+}
+
+
+static void do_write(uv_handle_t* handle) {
+  uv_req_t* req;
+  uv_buf buf;
+  int r;
+
+  buf.base = (char*) &write_buffer;
+  buf.len = sizeof write_buffer;
+
+  while (handle->write_queue_size == 0) {
+    req = req_alloc();
+    uv_req_init(req, handle, write_cb);
+
+    r = uv_write(req, &buf, 1);
+    ASSERT(r == 0);
+  }
+}
+
+static void maybe_start_writing() {
+  int i;
+
+  if (read_sockets == TARGET_CONNECTIONS &&
+      write_sockets == TARGET_CONNECTIONS) {
+    start_stats_collection();
+
+    /* Yay! start writing */
+    for (i = 0; i < write_sockets; i++) {
+      do_write(&write_handles[i]);
+    }
+  }
+}
+
+
+static void connect_cb(uv_req_t* req, int status) {
+  if (status) LOG(uv_strerror(uv_last_error()));
+  ASSERT(status == 0);
+
+  write_sockets++;
+  req_free(req);
+
+  maybe_connect_some();
+  maybe_start_writing();
+}
+
+
+static void do_connect(uv_handle_t* handle, struct sockaddr* addr) {
+  uv_req_t* req;
+  int r;
+
+  r = uv_tcp_init(handle, close_cb, NULL);
+  ASSERT(r == 0);
+
+  req = req_alloc();
+  uv_req_init(req, handle, connect_cb);
+  r = uv_connect(req, addr);
+  ASSERT(r == 0);
+}
+
+
+static void maybe_connect_some() {
+  while (max_connect_socket < TARGET_CONNECTIONS &&
+         max_connect_socket < write_sockets + MAX_SIMULTANEOUS_CONNECTS) {
+    do_connect(&write_handles[max_connect_socket++],
+               (struct sockaddr*) &server_addr);
+  }
+}
+
+
+static void accept_cb(uv_handle_t* server) {
+  uv_handle_t* handle;
+  int r;
+
+  ASSERT(read_sockets < TARGET_CONNECTIONS);
+  handle = &read_handles[read_sockets];
+
+  r = uv_accept(server, handle, close_cb, NULL);
+  ASSERT(r == 0);
+
+  r = uv_read_start(handle, read_cb);
+  ASSERT(r == 0);
+
+  read_sockets++;
+
+  maybe_start_writing();
+}
+
+
+BENCHMARK_IMPL(pump) {
+  uv_handle_t server;
+  int r;
+
+  uv_init(buf_alloc);
+
+  /* Server */
+  server_addr = uv_ip4_addr("127.0.0.1", TEST_PORT);
+  r = uv_tcp_init(&server, close_cb, NULL);
+  ASSERT(r == 0);
+  r = uv_bind(&server, (struct sockaddr*) &server_addr);
+  ASSERT(r == 0);
+  r = uv_listen(&server, TARGET_CONNECTIONS, accept_cb);
+  ASSERT(r == 0);
+
+  uv_update_time();
+  start_time = uv_now();
+
+  /* Start making connections */
+  maybe_connect_some();
+
+  uv_run();
+
+  return 0;
+}
+
+
+/*
+ * Request allocator
+ */
+
+typedef struct req_list_s {
+  uv_req_t uv_req;
+  struct req_list_s* next;
+} req_list_t;
+
+
+static req_list_t* req_freelist = NULL;
+
+
+static uv_req_t* req_alloc() {
+  req_list_t* req;
+
+  req = req_freelist;
+  if (req != NULL) {
+    req_freelist = req->next;
+    return (uv_req_t*) req;
+  }
+
+  req = (req_list_t*) malloc(sizeof *req);
+  return (uv_req_t*) req;
+}
+
+
+static void req_free(uv_req_t* uv_req) {
+  req_list_t* req = (req_list_t*) uv_req;
+
+  req->next = req_freelist;
+  req_freelist = req;
+}
+
+
+/*
+ * Buffer allocator
+ */
+
+typedef struct buf_list_s {
+  uv_buf uv_buf;
+  struct buf_list_s* next;
+} buf_list_t;
+
+
+static buf_list_t* buf_freelist = NULL;
+
+
+static uv_buf buf_alloc(uv_handle_t* handle, size_t size) {
+  buf_list_t* buf;
+
+  buf = buf_freelist;
+  if (buf != NULL) {
+    buf_freelist = buf->next;
+    return buf->uv_buf;
+  }
+
+  buf = (buf_list_t*) malloc(size + sizeof *buf);
+  buf->uv_buf.len = (unsigned int)size;
+  buf->uv_buf.base = ((char*) buf) + sizeof *buf;
+
+  return buf->uv_buf;
+}
+
+
+static void buf_free(uv_buf uv_buf) {
+  buf_list_t* buf = (buf_list_t*) (uv_buf.base - sizeof *buf);
+
+  buf->next = buf_freelist;
+  buf_freelist = buf;
+}