libuv: Rename source files from .c to .cpp.

This ensures they will actually get compiled as C++.

wpiutil/src/main/native/libuv/unix/freebsd.cpp

@@ -0,0 +1,375 @@
+/* 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 "uv.h"
+#include "internal.h"
+
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+
+#include <paths.h>
+#include <sys/user.h>
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sys/sysctl.h>
+#include <vm/vm_param.h> /* VM_LOADAVG */
+#include <time.h>
+#include <stdlib.h>
+#include <unistd.h> /* sysconf */
+#include <fcntl.h>
+
+#ifndef CPUSTATES
+# define CPUSTATES 5U
+#endif
+#ifndef CP_USER
+# define CP_USER 0
+# define CP_NICE 1
+# define CP_SYS 2
+# define CP_IDLE 3
+# define CP_INTR 4
+#endif
+
+static uv_mutex_t process_title_mutex;
+static uv_once_t process_title_mutex_once = UV_ONCE_INIT;
+static char *process_title;
+
+
+static void init_process_title_mutex_once(void) {
+  uv_mutex_init(&process_title_mutex);
+}
+
+
+int uv__platform_loop_init(uv_loop_t* loop) {
+  return uv__kqueue_init(loop);
+}
+
+
+void uv__platform_loop_delete(uv_loop_t* loop) {
+}
+
+
+#ifdef __DragonFly__
+int uv_exepath(char* buffer, size_t* size) {
+  char abspath[PATH_MAX * 2 + 1];
+  ssize_t abspath_size;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  abspath_size = readlink("/proc/curproc/file", abspath, sizeof(abspath));
+  if (abspath_size < 0)
+    return UV__ERR(errno);
+
+  assert(abspath_size > 0);
+  *size -= 1;
+
+  if (*size > abspath_size)
+    *size = abspath_size;
+
+  memcpy(buffer, abspath, *size);
+  buffer[*size] = '\0';
+
+  return 0;
+}
+#else
+int uv_exepath(char* buffer, size_t* size) {
+  char abspath[PATH_MAX * 2 + 1];
+  int mib[4];
+  size_t abspath_size;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_PROC;
+  mib[2] = KERN_PROC_PATHNAME;
+  mib[3] = -1;
+
+  abspath_size = sizeof abspath;
+  if (sysctl(mib, 4, abspath, &abspath_size, NULL, 0))
+    return UV__ERR(errno);
+
+  assert(abspath_size > 0);
+  abspath_size -= 1;
+  *size -= 1;
+
+  if (*size > abspath_size)
+    *size = abspath_size;
+
+  memcpy(buffer, abspath, *size);
+  buffer[*size] = '\0';
+
+  return 0;
+}
+#endif
+
+uint64_t uv_get_free_memory(void) {
+  int freecount;
+  size_t size = sizeof(freecount);
+
+  if (sysctlbyname("vm.stats.vm.v_free_count", &freecount, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) freecount * sysconf(_SC_PAGESIZE);
+
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  unsigned long info;
+  int which[] = {CTL_HW, HW_PHYSMEM};
+
+  size_t size = sizeof(info);
+
+  if (sysctl(which, 2, &info, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  return (uint64_t) info;
+}
+
+
+void uv_loadavg(double avg[3]) {
+  struct loadavg info;
+  size_t size = sizeof(info);
+  int which[] = {CTL_VM, VM_LOADAVG};
+
+  if (sysctl(which, 2, &info, &size, NULL, 0) < 0) return;
+
+  avg[0] = (double) info.ldavg[0] / info.fscale;
+  avg[1] = (double) info.ldavg[1] / info.fscale;
+  avg[2] = (double) info.ldavg[2] / info.fscale;
+}
+
+
+char** uv_setup_args(int argc, char** argv) {
+  process_title = argc ? uv__strdup(argv[0]) : NULL;
+  return argv;
+}
+
+
+int uv_set_process_title(const char* title) {
+  int oid[4];
+  char* new_title;
+
+  new_title = uv__strdup(title);
+
+  uv_once(&process_title_mutex_once, init_process_title_mutex_once);
+  uv_mutex_lock(&process_title_mutex);
+
+  if (process_title == NULL) {
+    uv_mutex_unlock(&process_title_mutex);
+    return UV_ENOMEM;
+  }
+
+  uv__free(process_title);
+  process_title = new_title;
+
+  oid[0] = CTL_KERN;
+  oid[1] = KERN_PROC;
+  oid[2] = KERN_PROC_ARGS;
+  oid[3] = getpid();
+
+  sysctl(oid,
+         ARRAY_SIZE(oid),
+         NULL,
+         NULL,
+         process_title,
+         strlen(process_title) + 1);
+
+  uv_mutex_unlock(&process_title_mutex);
+
+  return 0;
+}
+
+
+int uv_get_process_title(char* buffer, size_t size) {
+  size_t len;
+
+  if (buffer == NULL || size == 0)
+    return UV_EINVAL;
+
+  uv_once(&process_title_mutex_once, init_process_title_mutex_once);
+  uv_mutex_lock(&process_title_mutex);
+
+  if (process_title) {
+    len = strlen(process_title) + 1;
+
+    if (size < len) {
+      uv_mutex_unlock(&process_title_mutex);
+      return UV_ENOBUFS;
+    }
+
+    memcpy(buffer, process_title, len);
+  } else {
+    len = 0;
+  }
+
+  uv_mutex_unlock(&process_title_mutex);
+
+  buffer[len] = '\0';
+
+  return 0;
+}
+
+int uv_resident_set_memory(size_t* rss) {
+  struct kinfo_proc kinfo;
+  size_t page_size;
+  size_t kinfo_size;
+  int mib[4];
+
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_PROC;
+  mib[2] = KERN_PROC_PID;
+  mib[3] = getpid();
+
+  kinfo_size = sizeof(kinfo);
+
+  if (sysctl(mib, 4, &kinfo, &kinfo_size, NULL, 0))
+    return UV__ERR(errno);
+
+  page_size = getpagesize();
+
+#ifdef __DragonFly__
+  *rss = kinfo.kp_vm_rssize * page_size;
+#else
+  *rss = kinfo.ki_rssize * page_size;
+#endif
+
+  return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+  int r;
+  struct timespec sp;
+  r = clock_gettime(CLOCK_MONOTONIC, &sp);
+  if (r)
+    return UV__ERR(errno);
+
+  *uptime = sp.tv_sec;
+  return 0;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
+               multiplier = ((uint64_t)1000L / ticks), cpuspeed, maxcpus,
+               cur = 0;
+  uv_cpu_info_t* cpu_info;
+  const char* maxcpus_key;
+  const char* cptimes_key;
+  const char* model_key;
+  char model[512];
+  long* cp_times;
+  int numcpus;
+  size_t size;
+  int i;
+
+#if defined(__DragonFly__)
+  /* This is not quite correct but DragonFlyBSD doesn't seem to have anything
+   * comparable to kern.smp.maxcpus or kern.cp_times (kern.cp_time is a total,
+   * not per CPU). At least this stops uv_cpu_info() from failing completely.
+   */
+  maxcpus_key = "hw.ncpu";
+  cptimes_key = "kern.cp_time";
+#else
+  maxcpus_key = "kern.smp.maxcpus";
+  cptimes_key = "kern.cp_times";
+#endif
+
+#if defined(__arm__) || defined(__aarch64__)
+  /* The key hw.model and hw.clockrate are not available on FreeBSD ARM. */
+  model_key = "hw.machine";
+  cpuspeed = 0;
+#else
+  model_key = "hw.model";
+
+  size = sizeof(cpuspeed);
+  if (sysctlbyname("hw.clockrate", &cpuspeed, &size, NULL, 0))
+    return -errno;
+#endif
+
+  size = sizeof(model);
+  if (sysctlbyname(model_key, &model, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  size = sizeof(numcpus);
+  if (sysctlbyname("hw.ncpu", &numcpus, &size, NULL, 0))
+    return UV__ERR(errno);
+
+  *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
+  if (!(*cpu_infos))
+    return UV_ENOMEM;
+
+  *count = numcpus;
+
+  /* kern.cp_times on FreeBSD i386 gives an array up to maxcpus instead of
+   * ncpu.
+   */
+  size = sizeof(maxcpus);
+  if (sysctlbyname(maxcpus_key, &maxcpus, &size, NULL, 0)) {
+    uv__free(*cpu_infos);
+    return UV__ERR(errno);
+  }
+
+  size = maxcpus * CPUSTATES * sizeof(long);
+
+  cp_times = uv__malloc(size);
+  if (cp_times == NULL) {
+    uv__free(*cpu_infos);
+    return UV_ENOMEM;
+  }
+
+  if (sysctlbyname(cptimes_key, cp_times, &size, NULL, 0)) {
+    uv__free(cp_times);
+    uv__free(*cpu_infos);
+    return UV__ERR(errno);
+  }
+
+  for (i = 0; i < numcpus; i++) {
+    cpu_info = &(*cpu_infos)[i];
+
+    cpu_info->cpu_times.user = (uint64_t)(cp_times[CP_USER+cur]) * multiplier;
+    cpu_info->cpu_times.nice = (uint64_t)(cp_times[CP_NICE+cur]) * multiplier;
+    cpu_info->cpu_times.sys = (uint64_t)(cp_times[CP_SYS+cur]) * multiplier;
+    cpu_info->cpu_times.idle = (uint64_t)(cp_times[CP_IDLE+cur]) * multiplier;
+    cpu_info->cpu_times.irq = (uint64_t)(cp_times[CP_INTR+cur]) * multiplier;
+
+    cpu_info->model = uv__strdup(model);
+    cpu_info->speed = cpuspeed;
+
+    cur+=CPUSTATES;
+  }
+
+  uv__free(cp_times);
+  return 0;
+}
+
+
+void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count) {
+  int i;
+
+  for (i = 0; i < count; i++) {
+    uv__free(cpu_infos[i].model);
+  }
+
+  uv__free(cpu_infos);
+}