ibmi: add support for new platform

Support the IBM i platform.

- add a new file src/unix/ibmi.c
- extract the common functions from /src/unix/aix.c into aix-common.c
- update uv.gyp and include/uv-unix.h to enable the new file ibmi.c

PR-URL: https://github.com/libuv/libuv/pull/1601
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

Makefile.am

@@ -329,7 +329,7 @@ libuv_la_CFLAGS += -D_ALL_SOURCE \
                    -D_THREAD_SAFE \
                    -DHAVE_SYS_AHAFS_EVPRODS_H
 include_HEADERS += include/uv-aix.h
-libuv_la_SOURCES += src/unix/aix.c
+libuv_la_SOURCES += src/unix/aix.c src/unix/aix-common.c
 endif
 
 if ANDROID

checksparse.sh

@@ -177,8 +177,18 @@ case `uname -s` in
 AIX)
   SPARSE_FLAGS="$SPARSE_FLAGS -D_AIX=1"
   SOURCES="$SOURCES
+           src/unix/aix-common.c
            src/unix/aix.c"
   ;;
+OS400)
+  SPARSE_FLAGS="$SPARSE_FLAGS -D_PASE=1"
+  SOURCES="$SOURCES
+           src/unix/aix-common.c
+           src/unix/ibmi.c
+           src/unix/posix-poll.c
+           src/unix/no-fsevents.c
+           src/unix/no-proctitle.c"
+  ;;
 Darwin)
   SPARSE_FLAGS="$SPARSE_FLAGS -D__APPLE__=1"
   SOURCES="$SOURCES

include/uv-unix.h

@@ -48,6 +48,8 @@
 # include "uv-linux.h"
 #elif defined (__MVS__)
 # include "uv-os390.h"
+#elif defined(_PASE)
+# include "uv-posix.h"
 #elif defined(_AIX)
 # include "uv-aix.h"
 #elif defined(__sun)

src/unix/aix-common.c

@@ -0,0 +1,292 @@
+/* Copyright libuv project 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 <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <sys/time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <utmp.h>
+#include <libgen.h>
+
+#include <sys/protosw.h>
+#include <procinfo.h>
+#include <sys/proc.h>
+#include <sys/procfs.h>
+
+#include <sys/poll.h>
+
+#include <sys/pollset.h>
+#include <ctype.h>
+
+#include <sys/mntctl.h>
+#include <sys/vmount.h>
+#include <limits.h>
+#include <strings.h>
+#include <sys/vnode.h>
+
+uint64_t uv__hrtime(uv_clocktype_t type) {
+  uint64_t G = 1000000000;
+  timebasestruct_t t;
+  read_wall_time(&t, TIMEBASE_SZ);
+  time_base_to_time(&t, TIMEBASE_SZ);
+  return (uint64_t) t.tb_high * G + t.tb_low;
+}
+
+
+/*
+ * We could use a static buffer for the path manipulations that we need outside
+ * of the function, but this function could be called by multiple consumers and
+ * we don't want to potentially create a race condition in the use of snprintf.
+ * There is no direct way of getting the exe path in AIX - either through /procfs
+ * or through some libc APIs. The below approach is to parse the argv[0]'s pattern
+ * and use it in conjunction with PATH environment variable to craft one.
+ */
+int uv_exepath(char* buffer, size_t* size) {
+  int res;
+  char args[PATH_MAX];
+  char abspath[PATH_MAX];
+  size_t abspath_size;
+  struct procsinfo pi;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return -EINVAL;
+
+  pi.pi_pid = getpid();
+  res = getargs(&pi, sizeof(pi), args, sizeof(args));
+  if (res < 0)
+    return -EINVAL;
+
+  /*
+   * Possibilities for args:
+   * i) an absolute path such as: /home/user/myprojects/nodejs/node
+   * ii) a relative path such as: ./node or ../myprojects/nodejs/node
+   * iii) a bare filename such as "node", after exporting PATH variable
+   *     to its location.
+   */
+
+  /* Case i) and ii) absolute or relative paths */
+  if (strchr(args, '/') != NULL) {
+    if (realpath(args, abspath) != abspath)
+      return -errno;
+
+    abspath_size = strlen(abspath);
+
+    *size -= 1;
+    if (*size > abspath_size)
+      *size = abspath_size;
+
+    memcpy(buffer, abspath, *size);
+    buffer[*size] = '\0';
+
+    return 0;
+  } else {
+    /* Case iii). Search PATH environment variable */
+    char trypath[PATH_MAX];
+    char *clonedpath = NULL;
+    char *token = NULL;
+    char *path = getenv("PATH");
+
+    if (path == NULL)
+      return -EINVAL;
+
+    clonedpath = uv__strdup(path);
+    if (clonedpath == NULL)
+      return -ENOMEM;
+
+    token = strtok(clonedpath, ":");
+    while (token != NULL) {
+      snprintf(trypath, sizeof(trypath) - 1, "%s/%s", token, args);
+      if (realpath(trypath, abspath) == abspath) {
+        /* Check the match is executable */
+        if (access(abspath, X_OK) == 0) {
+          abspath_size = strlen(abspath);
+
+          *size -= 1;
+          if (*size > abspath_size)
+            *size = abspath_size;
+
+          memcpy(buffer, abspath, *size);
+          buffer[*size] = '\0';
+
+          uv__free(clonedpath);
+          return 0;
+        }
+      }
+      token = strtok(NULL, ":");
+    }
+    uv__free(clonedpath);
+
+    /* Out of tokens (path entries), and no match found */
+    return -EINVAL;
+  }
+}
+
+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);
+}
+
+
+int uv_interface_addresses(uv_interface_address_t** addresses,
+  int* count) {
+  uv_interface_address_t* address;
+  int sockfd, inet6, size = 1;
+  struct ifconf ifc;
+  struct ifreq *ifr, *p, flg;
+  struct sockaddr_dl* sa_addr;
+
+  *count = 0;
+
+  if (0 > (sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP))) {
+    return -errno;
+  }
+
+  if (ioctl(sockfd, SIOCGSIZIFCONF, &size) == -1) {
+    uv__close(sockfd);
+    return -errno;
+  }
+
+  ifc.ifc_req = (struct ifreq*)uv__malloc(size);
+  ifc.ifc_len = size;
+  if (ioctl(sockfd, SIOCGIFCONF, &ifc) == -1) {
+    uv__close(sockfd);
+    return -errno;
+  }
+
+#define ADDR_SIZE(p) MAX((p).sa_len, sizeof(p))
+
+  /* Count all up and running ipv4/ipv6 addresses */
+  ifr = ifc.ifc_req;
+  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
+    p = ifr;
+    ifr = (struct ifreq*)
+      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
+
+    if (!(p->ifr_addr.sa_family == AF_INET6 ||
+          p->ifr_addr.sa_family == AF_INET))
+      continue;
+
+    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
+    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
+      uv__close(sockfd);
+      return -errno;
+    }
+
+    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
+      continue;
+
+    (*count)++;
+  }
+
+  /* Alloc the return interface structs */
+  *addresses = uv__malloc(*count * sizeof(uv_interface_address_t));
+  if (!(*addresses)) {
+    uv__close(sockfd);
+    return -ENOMEM;
+  }
+  address = *addresses;
+
+  ifr = ifc.ifc_req;
+  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
+    p = ifr;
+    ifr = (struct ifreq*)
+      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
+
+    if (!(p->ifr_addr.sa_family == AF_INET6 ||
+          p->ifr_addr.sa_family == AF_INET))
+      continue;
+
+    inet6 = (p->ifr_addr.sa_family == AF_INET6);
+
+    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
+    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
+      uv__close(sockfd);
+      return -ENOSYS;
+    }
+
+    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
+      continue;
+
+    /* All conditions above must match count loop */
+
+    address->name = uv__strdup(p->ifr_name);
+
+    if (inet6)
+      address->address.address6 = *((struct sockaddr_in6*) &p->ifr_addr);
+    else
+      address->address.address4 = *((struct sockaddr_in*) &p->ifr_addr);
+
+    sa_addr = (struct sockaddr_dl*) &p->ifr_addr;
+    memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
+
+    if (ioctl(sockfd, SIOCGIFNETMASK, p) == -1) {
+      uv__close(sockfd);
+      return -ENOSYS;
+    }
+
+    if (inet6)
+      address->netmask.netmask6 = *((struct sockaddr_in6*) &p->ifr_addr);
+    else
+      address->netmask.netmask4 = *((struct sockaddr_in*) &p->ifr_addr);
+
+    address->is_internal = flg.ifr_flags & IFF_LOOPBACK ? 1 : 0;
+
+    address++;
+  }
+
+#undef ADDR_SIZE
+
+  uv__close(sockfd);
+  return 0;
+}
+
+
+void uv_free_interface_addresses(uv_interface_address_t* addresses,
+  int count) {
+  int i;
+
+  for (i = 0; i < count; ++i) {
+    uv__free(addresses[i].name);
+  }
+
+  uv__free(addresses);
+}

src/unix/aix.c

@@ -1,4 +1,5 @@
 /* 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
@@ -316,104 +317,6 @@ update_timeout:
 }
 
 
-uint64_t uv__hrtime(uv_clocktype_t type) {
-  uint64_t G = 1000000000;
-  timebasestruct_t t;
-  read_wall_time(&t, TIMEBASE_SZ);
-  time_base_to_time(&t, TIMEBASE_SZ);
-  return (uint64_t) t.tb_high * G + t.tb_low;
-}
-
-
-/*
- * We could use a static buffer for the path manipulations that we need outside
- * of the function, but this function could be called by multiple consumers and
- * we don't want to potentially create a race condition in the use of snprintf.
- * There is no direct way of getting the exe path in AIX - either through /procfs
- * or through some libc APIs. The below approach is to parse the argv[0]'s pattern
- * and use it in conjunction with PATH environment variable to craft one.
- */
-int uv_exepath(char* buffer, size_t* size) {
-  int res;
-  char args[PATH_MAX];
-  char abspath[PATH_MAX];
-  size_t abspath_size;
-  struct procsinfo pi;
-
-  if (buffer == NULL || size == NULL || *size == 0)
-    return -EINVAL;
-
-  pi.pi_pid = getpid();
-  res = getargs(&pi, sizeof(pi), args, sizeof(args));
-  if (res < 0)
-    return -EINVAL;
-
-  /*
-   * Possibilities for args:
-   * i) an absolute path such as: /home/user/myprojects/nodejs/node
-   * ii) a relative path such as: ./node or ../myprojects/nodejs/node
-   * iii) a bare filename such as "node", after exporting PATH variable
-   *     to its location.
-   */
-
-  /* Case i) and ii) absolute or relative paths */
-  if (strchr(args, '/') != NULL) {
-    if (realpath(args, abspath) != abspath)
-      return -errno;
-
-    abspath_size = strlen(abspath);
-
-    *size -= 1;
-    if (*size > abspath_size)
-      *size = abspath_size;
-
-    memcpy(buffer, abspath, *size);
-    buffer[*size] = '\0';
-
-    return 0;
-  } else {
-  /* Case iii). Search PATH environment variable */
-    char trypath[PATH_MAX];
-    char *clonedpath = NULL;
-    char *token = NULL;
-    char *path = getenv("PATH");
-
-    if (path == NULL)
-      return -EINVAL;
-
-    clonedpath = uv__strdup(path);
-    if (clonedpath == NULL)
-      return -ENOMEM;
-
-    token = strtok(clonedpath, ":");
-    while (token != NULL) {
-      snprintf(trypath, sizeof(trypath) - 1, "%s/%s", token, args);
-      if (realpath(trypath, abspath) == abspath) {
-        /* Check the match is executable */
-        if (access(abspath, X_OK) == 0) {
-          abspath_size = strlen(abspath);
-
-          *size -= 1;
-          if (*size > abspath_size)
-            *size = abspath_size;
-
-          memcpy(buffer, abspath, *size);
-          buffer[*size] = '\0';
-
-          uv__free(clonedpath);
-          return 0;
-        }
-      }
-      token = strtok(NULL, ":");
-    }
-    uv__free(clonedpath);
-
-    /* Out of tokens (path entries), and no match found */
-    return -EINVAL;
-  }
-}
-
-
 uint64_t uv_get_free_memory(void) {
   perfstat_memory_total_t mem_total;
   int result = perfstat_memory_total(NULL, &mem_total, sizeof(mem_total), 1);
@@ -1094,143 +997,6 @@ int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
 }
 
 
-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);
-}
-
-
-int uv_interface_addresses(uv_interface_address_t** addresses,
-  int* count) {
-  uv_interface_address_t* address;
-  int sockfd, inet6, size = 1;
-  struct ifconf ifc;
-  struct ifreq *ifr, *p, flg;
-  struct sockaddr_dl* sa_addr;
-
-  *count = 0;
-
-  if (0 > (sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP))) {
-    return -errno;
-  }
-
-  if (ioctl(sockfd, SIOCGSIZIFCONF, &size) == -1) {
-    uv__close(sockfd);
-    return -errno;
-  }
-
-  ifc.ifc_req = (struct ifreq*)uv__malloc(size);
-  ifc.ifc_len = size;
-  if (ioctl(sockfd, SIOCGIFCONF, &ifc) == -1) {
-    uv__close(sockfd);
-    return -errno;
-  }
-
-#define ADDR_SIZE(p) MAX((p).sa_len, sizeof(p))
-
-  /* Count all up and running ipv4/ipv6 addresses */
-  ifr = ifc.ifc_req;
-  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
-    p = ifr;
-    ifr = (struct ifreq*)
-      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
-
-    if (!(p->ifr_addr.sa_family == AF_INET6 ||
-          p->ifr_addr.sa_family == AF_INET))
-      continue;
-
-    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
-    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
-      uv__close(sockfd);
-      return -errno;
-    }
-
-    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
-      continue;
-
-    (*count)++;
-  }
-
-  /* Alloc the return interface structs */
-  *addresses = (uv_interface_address_t*)
-    uv__malloc(*count * sizeof(uv_interface_address_t));
-  if (!(*addresses)) {
-    uv__close(sockfd);
-    return -ENOMEM;
-  }
-  address = *addresses;
-
-  ifr = ifc.ifc_req;
-  while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
-    p = ifr;
-    ifr = (struct ifreq*)
-      ((char*)ifr + sizeof(ifr->ifr_name) + ADDR_SIZE(ifr->ifr_addr));
-
-    if (!(p->ifr_addr.sa_family == AF_INET6 ||
-          p->ifr_addr.sa_family == AF_INET))
-      continue;
-
-    inet6 = (p->ifr_addr.sa_family == AF_INET6);
-
-    memcpy(flg.ifr_name, p->ifr_name, sizeof(flg.ifr_name));
-    if (ioctl(sockfd, SIOCGIFFLAGS, &flg) == -1) {
-      uv__close(sockfd);
-      return -ENOSYS;
-    }
-
-    if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
-      continue;
-
-    /* All conditions above must match count loop */
-
-    address->name = uv__strdup(p->ifr_name);
-
-    if (inet6)
-      address->address.address6 = *((struct sockaddr_in6*) &p->ifr_addr);
-    else
-      address->address.address4 = *((struct sockaddr_in*) &p->ifr_addr);
-
-    sa_addr = (struct sockaddr_dl*) &p->ifr_addr;
-    memcpy(address->phys_addr, LLADDR(sa_addr), sizeof(address->phys_addr));
-
-    if (ioctl(sockfd, SIOCGIFNETMASK, p) == -1) {
-      uv__close(sockfd);
-      return -ENOSYS;
-    }
-
-    if (inet6)
-      address->netmask.netmask6 = *((struct sockaddr_in6*) &p->ifr_addr);
-    else
-      address->netmask.netmask4 = *((struct sockaddr_in*) &p->ifr_addr);
-
-    address->is_internal = flg.ifr_flags & IFF_LOOPBACK ? 1 : 0;
-
-    address++;
-  }
-
-#undef ADDR_SIZE
-
-  uv__close(sockfd);
-  return 0;
-}
-
-
-void uv_free_interface_addresses(uv_interface_address_t* addresses,
-  int count) {
-  int i;
-
-  for (i = 0; i < count; ++i) {
-    uv__free(addresses[i].name);
-  }
-
-  uv__free(addresses);
-}
-
 void uv__platform_invalidate_fd(uv_loop_t* loop, int fd) {
   struct pollfd* events;
   uintptr_t i;

src/unix/ibmi.c

@@ -0,0 +1,112 @@
+/* Copyright libuv project 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 <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <sys/time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <utmp.h>
+#include <libgen.h>
+
+#include <sys/protosw.h>
+#include <procinfo.h>
+#include <sys/proc.h>
+#include <sys/procfs.h>
+
+#include <ctype.h>
+
+#include <sys/mntctl.h>
+#include <sys/vmount.h>
+#include <limits.h>
+#include <strings.h>
+#include <sys/vnode.h>
+
+uint64_t uv_get_free_memory(void) {
+  return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_AVPHYS_PAGES);
+}
+
+
+uint64_t uv_get_total_memory(void) {
+  return (uint64_t) sysconf(_SC_PAGESIZE) * sysconf(_SC_PHYS_PAGES);
+}
+
+
+void uv_loadavg(double avg[3]) {
+    avg[0] = avg[1] = avg[2] = 0;
+    return;
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+  return UV_ENOSYS;
+}
+
+
+int uv_uptime(double* uptime) {
+  return UV_ENOSYS;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
+  unsigned int numcpus, idx = 0;
+  uv_cpu_info_t* cpu_info;
+
+  *cpu_infos = NULL;
+  *count = 0;
+
+  numcpus = sysconf(_SC_NPROCESSORS_ONLN);
+
+  *cpu_infos = uv__malloc(numcpus * sizeof(uv_cpu_info_t));
+  if (!*cpu_infos) {
+    return -ENOMEM;
+  }
+
+  cpu_info = *cpu_infos;
+  for (idx = 0; idx < numcpus; idx++) {
+    cpu_info->speed = 0;
+    cpu_info->model = uv__strdup("unknown");
+    cpu_info->cpu_times.user = 0;
+    cpu_info->cpu_times.sys = 0;
+    cpu_info->cpu_times.idle = 0;
+    cpu_info->cpu_times.irq = 0;
+    cpu_info->cpu_times.nice = 0;
+    cpu_info++;
+  }
+  *count = numcpus;
+
+  return 0;
+}

uv.gyp

@@ -274,19 +274,43 @@
           },
         }],
         [ 'OS=="aix"', {
-          'sources': [ 'src/unix/aix.c' ],
+          'variables': {
+            'os_name': '<!(uname -s)',
+          },
+          'sources': [
+            'src/unix/aix-common.c',
+          ],
           'defines': [
             '_ALL_SOURCE',
             '_XOPEN_SOURCE=500',
             '_LINUX_SOURCE_COMPAT',
             '_THREAD_SAFE',
-            'HAVE_SYS_AHAFS_EVPRODS_H',
           ],
-          'link_settings': {
-            'libraries': [
-              '-lperfstat',
-            ],
-          },
+          'conditions': [
+            [ '"<(os_name)"=="OS400"', {
+              'sources': [
+                'src/unix/ibmi.c',
+                'src/unix/posix-poll.c',
+                'src/unix/no-fsevents.c',
+                'src/unix/no-proctitle.c',
+              ],
+              'defines': [
+                '_PASE=1'
+              ],
+            }, {
+              'sources': [
+                'src/unix/aix.c'
+              ],
+              'defines': [
+                'HAVE_SYS_AHAFS_EVPRODS_H'
+              ],
+              'link_settings': {
+                'libraries': [
+                  '-lperfstat',
+                ],
+              },
+            }],
+          ]
         }],
         [ 'OS=="freebsd" or OS=="dragonflybsd"', {
           'sources': [ 'src/unix/freebsd.c' ],