aboutsummaryrefslogtreecommitdiffhomepage
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/c-ares/ares_build.h254
-rw-r--r--src/c-ares/config_darwin/ares_config.h523
-rw-r--r--src/c-ares/config_linux/ares_config.h524
-rwxr-xr-xsrc/c-ares/gen_build_yaml.py149
-rw-r--r--src/core/ext/client_config/client_channel.c27
-rw-r--r--src/core/ext/client_config/resolver.c12
-rw-r--r--src/core/ext/client_config/resolver.h12
-rw-r--r--src/core/ext/resolver/dns/c_ares/dns_resolver.c374
-rw-r--r--src/core/ext/resolver/dns/c_ares/grpc_ares_ev_dirver_windows.c34
-rw-r--r--src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h59
-rw-r--r--src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c205
-rw-r--r--src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c327
-rw-r--r--src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h61
-rw-r--r--src/core/ext/resolver/sockaddr/sockaddr_resolver.c2
-rw-r--r--src/core/lib/iomgr/resolve_address.h7
-rw-r--r--src/core/lib/iomgr/resolve_address_posix.c22
-rw-r--r--src/core/lib/iomgr/resolve_address_windows.c22
-rw-r--r--src/core/plugin_registry/grpc_plugin_registry.c8
-rw-r--r--src/core/plugin_registry/grpc_unsecure_plugin_registry.c8
-rw-r--r--src/python/grpcio/grpc_core_dependencies.py53
-rw-r--r--src/ruby/ext/grpc/extconf.rb1
21 files changed, 2661 insertions, 23 deletions
diff --git a/src/c-ares/ares_build.h b/src/c-ares/ares_build.h
new file mode 100644
index 0000000000..7d69f1e6ae
--- /dev/null
+++ b/src/c-ares/ares_build.h
@@ -0,0 +1,254 @@
+#ifndef __CARES_BUILD_H
+#define __CARES_BUILD_H
+
+
+/* Copyright (C) 2009 - 2013 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/* ================================================================ */
+/* NOTES FOR CONFIGURE CAPABLE SYSTEMS */
+/* ================================================================ */
+
+/*
+ * NOTE 1:
+ * -------
+ *
+ * See file ares_build.h.in, run configure, and forget that this file
+ * exists it is only used for non-configure systems.
+ * But you can keep reading if you want ;-)
+ *
+ */
+
+/* ================================================================ */
+/* NOTES FOR NON-CONFIGURE SYSTEMS */
+/* ================================================================ */
+
+/*
+ * NOTE 1:
+ * -------
+ *
+ * Nothing in this file is intended to be modified or adjusted by the
+ * c-ares library user nor by the c-ares library builder.
+ *
+ * If you think that something actually needs to be changed, adjusted
+ * or fixed in this file, then, report it on the c-ares development
+ * mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/
+ *
+ * Try to keep one section per platform, compiler and architecture,
+ * otherwise, if an existing section is reused for a different one and
+ * later on the original is adjusted, probably the piggybacking one can
+ * be adversely changed.
+ *
+ * In order to differentiate between platforms/compilers/architectures
+ * use only compiler built in predefined preprocessor symbols.
+ *
+ * This header file shall only export symbols which are 'cares' or 'CARES'
+ * prefixed, otherwise public name space would be polluted.
+ *
+ * NOTE 2:
+ * -------
+ *
+ * Right now you might be staring at file ares_build.h.dist or ares_build.h,
+ * this is due to the following reason: file ares_build.h.dist is renamed
+ * to ares_build.h when the c-ares source code distribution archive file is
+ * created.
+ *
+ * File ares_build.h.dist is not included in the distribution archive.
+ * File ares_build.h is not present in the git tree.
+ *
+ * The distributed ares_build.h file is only intended to be used on systems
+ * which can not run the also distributed configure script.
+ *
+ * On systems capable of running the configure script, the configure process
+ * will overwrite the distributed ares_build.h file with one that is suitable
+ * and specific to the library being configured and built, which is generated
+ * from the ares_build.h.in template file.
+ *
+ * If you check out from git on a non-configure platform, you must run the
+ * appropriate buildconf* script to set up ares_build.h and other local files.
+ *
+ */
+
+/* ================================================================ */
+/* DEFINITION OF THESE SYMBOLS SHALL NOT TAKE PLACE ANYWHERE ELSE */
+/* ================================================================ */
+
+#ifdef CARES_SIZEOF_LONG
+# error "CARES_SIZEOF_LONG shall not be defined except in ares_build.h"
+ Error Compilation_aborted_CARES_SIZEOF_LONG_already_defined
+#endif
+
+#ifdef CARES_TYPEOF_ARES_SOCKLEN_T
+# error "CARES_TYPEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+ Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+#ifdef CARES_SIZEOF_ARES_SOCKLEN_T
+# error "CARES_SIZEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+ Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+/* ================================================================ */
+/* EXTERNAL INTERFACE SETTINGS FOR NON-CONFIGURE SYSTEMS ONLY */
+/* ================================================================ */
+
+#if defined(__DJGPP__) || defined(__GO32__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__SALFORDC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__BORLANDC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__TURBOC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__WATCOMC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__POCC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__LCC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__SYMBIAN32__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T unsigned int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__MWERKS__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(_WIN32_WCE)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__MINGW32__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__VMS)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T unsigned int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__OS400__)
+# if defined(__ILEC400__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+# define CARES_PULL_SYS_TYPES_H 1
+# define CARES_PULL_SYS_SOCKET_H 1
+# endif
+
+#elif defined(__MVS__)
+# if defined(__IBMC__) || defined(__IBMCPP__)
+# if defined(_ILP32)
+# define CARES_SIZEOF_LONG 4
+# elif defined(_LP64)
+# define CARES_SIZEOF_LONG 8
+# endif
+# define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+# define CARES_PULL_SYS_TYPES_H 1
+# define CARES_PULL_SYS_SOCKET_H 1
+# endif
+
+#elif defined(__370__)
+# if defined(__IBMC__) || defined(__IBMCPP__)
+# if defined(_ILP32)
+# define CARES_SIZEOF_LONG 4
+# elif defined(_LP64)
+# define CARES_SIZEOF_LONG 8
+# endif
+# define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+# define CARES_PULL_SYS_TYPES_H 1
+# define CARES_PULL_SYS_SOCKET_H 1
+# endif
+
+#elif defined(TPF)
+# define CARES_SIZEOF_LONG 8
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+/* ===================================== */
+/* KEEP MSVC THE PENULTIMATE ENTRY */
+/* ===================================== */
+
+#elif defined(_MSC_VER)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+/* ===================================== */
+/* KEEP GENERIC GCC THE LAST ENTRY */
+/* ===================================== */
+
+#elif defined(__GNUC__)
+# if defined(__LP64__) || \
+ defined(__x86_64__) || defined(__ppc64__)
+# define CARES_SIZEOF_LONG 8
+# elif defined(__ILP32__) || \
+ defined(__i386__) || defined(__ppc__) || defined(__arm__)
+# define CARES_SIZEOF_LONG 4
+# endif
+# define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+# define CARES_PULL_SYS_TYPES_H 1
+# define CARES_PULL_SYS_SOCKET_H 1
+
+#else
+# error "Unknown non-configure build target!"
+ Error Compilation_aborted_Unknown_non_configure_build_target
+#endif
+
+/* CARES_PULL_SYS_TYPES_H is defined above when inclusion of header file */
+/* sys/types.h is required here to properly make type definitions below. */
+#ifdef CARES_PULL_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+/* CARES_PULL_SYS_SOCKET_H is defined above when inclusion of header file */
+/* sys/socket.h is required here to properly make type definitions below. */
+#ifdef CARES_PULL_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+
+/* Data type definition of ares_socklen_t. */
+
+#ifdef CARES_TYPEOF_ARES_SOCKLEN_T
+ typedef CARES_TYPEOF_ARES_SOCKLEN_T ares_socklen_t;
+#endif
+
+#endif /* __CARES_BUILD_H */
diff --git a/src/c-ares/config_darwin/ares_config.h b/src/c-ares/config_darwin/ares_config.h
new file mode 100644
index 0000000000..0f5bd4b6a5
--- /dev/null
+++ b/src/c-ares/config_darwin/ares_config.h
@@ -0,0 +1,523 @@
+/* ares_config.h. Generated from ares_config.h.in by configure. */
+/* ares_config.h.in. Generated from configure.ac by autoheader. */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* define this if ares is built for a big endian system */
+/* #undef ARES_BIG_ENDIAN */
+
+/* when building as static part of libcurl */
+/* #undef BUILDING_LIBCURL */
+
+/* Defined for build that exposes internal static functions for testing. */
+/* #undef CARES_EXPOSE_STATICS */
+
+/* Defined for build with symbol hiding. */
+#define CARES_SYMBOL_HIDING 1
+
+/* Definition to make a library symbol externally visible. */
+#define CARES_SYMBOL_SCOPE_EXTERN __attribute__ ((__visibility__ ("default")))
+
+/* Use resolver library to configure cares */
+/* #undef CARES_USE_LIBRESOLV */
+
+/* if a /etc/inet dir is being used */
+/* #undef ETC_INET */
+
+/* Define to the type of arg 2 for gethostname. */
+#define GETHOSTNAME_TYPE_ARG2 size_t
+
+/* Define to the type qualifier of arg 1 for getnameinfo. */
+#define GETNAMEINFO_QUAL_ARG1 const
+
+/* Define to the type of arg 1 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
+
+/* Define to the type of arg 2 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG2 socklen_t
+
+/* Define to the type of args 4 and 6 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG46 socklen_t
+
+/* Define to the type of arg 7 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG7 int
+
+/* Specifies the number of arguments to getservbyport_r */
+/* #undef GETSERVBYPORT_R_ARGS */
+
+/* Specifies the size of the buffer to pass to getservbyport_r */
+/* #undef GETSERVBYPORT_R_BUFSIZE */
+
+/* Define to 1 if you have AF_INET6. */
+#define HAVE_AF_INET6 1
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
+#define HAVE_ARPA_NAMESER_COMPAT_H 1
+
+/* Define to 1 if you have the <arpa/nameser.h> header file. */
+#define HAVE_ARPA_NAMESER_H 1
+
+/* Define to 1 if you have the <assert.h> header file. */
+#define HAVE_ASSERT_H 1
+
+/* Define to 1 if you have the `bitncmp' function. */
+/* #undef HAVE_BITNCMP */
+
+/* Define to 1 if bool is an available type. */
+#define HAVE_BOOL_T 1
+
+/* Define to 1 if you have the clock_gettime function and monotonic timer. */
+/* #undef HAVE_CLOCK_GETTIME_MONOTONIC */
+
+/* Define to 1 if you have the closesocket function. */
+/* #undef HAVE_CLOSESOCKET */
+
+/* Define to 1 if you have the CloseSocket camel case function. */
+/* #undef HAVE_CLOSESOCKET_CAMEL */
+
+/* Define to 1 if you have the connect function. */
+#define HAVE_CONNECT 1
+
+/* define if the compiler supports basic C++11 syntax */
+#define HAVE_CXX11 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the <errno.h> header file. */
+#define HAVE_ERRNO_H 1
+
+/* Define to 1 if you have the fcntl function. */
+#define HAVE_FCNTL 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
+#define HAVE_FCNTL_O_NONBLOCK 1
+
+/* Define to 1 if you have the freeaddrinfo function. */
+#define HAVE_FREEADDRINFO 1
+
+/* Define to 1 if you have a working getaddrinfo function. */
+#define HAVE_GETADDRINFO 1
+
+/* Define to 1 if the getaddrinfo function is threadsafe. */
+#define HAVE_GETADDRINFO_THREADSAFE 1
+
+/* Define to 1 if you have the getenv function. */
+#define HAVE_GETENV 1
+
+/* Define to 1 if you have the gethostbyaddr function. */
+#define HAVE_GETHOSTBYADDR 1
+
+/* Define to 1 if you have the gethostbyname function. */
+#define HAVE_GETHOSTBYNAME 1
+
+/* Define to 1 if you have the gethostname function. */
+#define HAVE_GETHOSTNAME 1
+
+/* Define to 1 if you have the getnameinfo function. */
+#define HAVE_GETNAMEINFO 1
+
+/* Define to 1 if you have the getservbyport_r function. */
+/* #undef HAVE_GETSERVBYPORT_R */
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#define HAVE_GETTIMEOFDAY 1
+
+/* Define to 1 if you have the `if_indextoname' function. */
+#define HAVE_IF_INDEXTONAME 1
+
+/* Define to 1 if you have a IPv6 capable working inet_net_pton function. */
+#define HAVE_INET_NET_PTON 1
+
+/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
+#define HAVE_INET_NTOP 1
+
+/* Define to 1 if you have a IPv6 capable working inet_pton function. */
+#define HAVE_INET_PTON 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the ioctl function. */
+#define HAVE_IOCTL 1
+
+/* Define to 1 if you have the ioctlsocket function. */
+/* #undef HAVE_IOCTLSOCKET */
+
+/* Define to 1 if you have the IoctlSocket camel case function. */
+/* #undef HAVE_IOCTLSOCKET_CAMEL */
+
+/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
+ */
+/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
+
+/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
+/* #undef HAVE_IOCTLSOCKET_FIONBIO */
+
+/* Define to 1 if you have a working ioctl FIONBIO function. */
+#define HAVE_IOCTL_FIONBIO 1
+
+/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
+#define HAVE_IOCTL_SIOCGIFADDR 1
+
+/* Define to 1 if you have the `resolve' library (-lresolve). */
+/* #undef HAVE_LIBRESOLVE */
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* if your compiler supports LL */
+#define HAVE_LL 1
+
+/* Define to 1 if the compiler supports the 'long long' data type. */
+#define HAVE_LONGLONG 1
+
+/* Define to 1 if you have the malloc.h header file. */
+/* #undef HAVE_MALLOC_H */
+
+/* Define to 1 if you have the memory.h header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the MSG_NOSIGNAL flag. */
+/* #undef HAVE_MSG_NOSIGNAL */
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#define HAVE_NETDB_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#define HAVE_NETINET_TCP_H 1
+
+/* Define to 1 if you have the <net/if.h> header file. */
+#define HAVE_NET_IF_H 1
+
+/* Define to 1 if you have PF_INET6. */
+#define HAVE_PF_INET6 1
+
+/* Define to 1 if you have the recv function. */
+#define HAVE_RECV 1
+
+/* Define to 1 if you have the recvfrom function. */
+#define HAVE_RECVFROM 1
+
+/* Define to 1 if you have the send function. */
+#define HAVE_SEND 1
+
+/* Define to 1 if you have the setsockopt function. */
+#define HAVE_SETSOCKOPT 1
+
+/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
+/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
+
+/* Define to 1 if you have the <signal.h> header file. */
+#define HAVE_SIGNAL_H 1
+
+/* Define to 1 if sig_atomic_t is an available typedef. */
+#define HAVE_SIG_ATOMIC_T 1
+
+/* Define to 1 if sig_atomic_t is already defined as volatile. */
+/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
+
+/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
+#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
+
+/* Define to 1 if you have the socket function. */
+#define HAVE_SOCKET 1
+
+/* Define to 1 if you have the <socket.h> header file. */
+/* #undef HAVE_SOCKET_H */
+
+/* Define to 1 if you have the <stdbool.h> header file. */
+#define HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the strcasecmp function. */
+#define HAVE_STRCASECMP 1
+
+/* Define to 1 if you have the strcmpi function. */
+/* #undef HAVE_STRCMPI */
+
+/* Define to 1 if you have the strdup function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the stricmp function. */
+/* #undef HAVE_STRICMP */
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the strncasecmp function. */
+#define HAVE_STRNCASECMP 1
+
+/* Define to 1 if you have the strncmpi function. */
+/* #undef HAVE_STRNCMPI */
+
+/* Define to 1 if you have the strnicmp function. */
+/* #undef HAVE_STRNICMP */
+
+/* Define to 1 if you have the <stropts.h> header file. */
+/* #undef HAVE_STROPTS_H */
+
+/* Define to 1 if you have struct addrinfo. */
+#define HAVE_STRUCT_ADDRINFO 1
+
+/* Define to 1 if you have struct in6_addr. */
+#define HAVE_STRUCT_IN6_ADDR 1
+
+/* Define to 1 if you have struct sockaddr_in6. */
+#define HAVE_STRUCT_SOCKADDR_IN6 1
+
+/* if struct sockaddr_storage is defined */
+#define HAVE_STRUCT_SOCKADDR_STORAGE 1
+
+/* Define to 1 if you have the timeval struct. */
+#define HAVE_STRUCT_TIMEVAL 1
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#define HAVE_SYS_IOCTL_H 1
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#define HAVE_SYS_PARAM_H 1
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#define HAVE_SYS_SELECT_H 1
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#define HAVE_SYS_UIO_H 1
+
+/* Define to 1 if you have the <time.h> header file. */
+#define HAVE_TIME_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the windows.h header file. */
+/* #undef HAVE_WINDOWS_H */
+
+/* Define to 1 if you have the winsock2.h header file. */
+/* #undef HAVE_WINSOCK2_H */
+
+/* Define to 1 if you have the winsock.h header file. */
+/* #undef HAVE_WINSOCK_H */
+
+/* Define to 1 if you have the writev function. */
+#define HAVE_WRITEV 1
+
+/* Define to 1 if you have the ws2tcpip.h header file. */
+/* #undef HAVE_WS2TCPIP_H */
+
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
+#define LT_OBJDIR ".libs/"
+
+/* Define to 1 if you need the malloc.h header file even with stdlib.h */
+/* #undef NEED_MALLOC_H */
+
+/* Define to 1 if you need the memory.h header file even with stdlib.h */
+/* #undef NEED_MEMORY_H */
+
+/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
+/* #undef NEED_REENTRANT */
+
+/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
+/* #undef NEED_THREAD_SAFE */
+
+/* cpu-machine-OS */
+#define OS "i386-apple-darwin9.8.0"
+
+/* Name of package */
+#define PACKAGE "c-ares"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "c-ares mailing list: http://cool.haxx.se/mailman/listinfo/c-ares"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "c-ares"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "c-ares -"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "c-ares"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "-"
+
+/* a suitable file/device to read random data from */
+#define RANDOM_FILE "/dev/urandom"
+
+/* Define to the type qualifier pointed by arg 5 for recvfrom. */
+#define RECVFROM_QUAL_ARG5
+
+/* Define to the type of arg 1 for recvfrom. */
+#define RECVFROM_TYPE_ARG1 int
+
+/* Define to the type pointed by arg 2 for recvfrom. */
+#define RECVFROM_TYPE_ARG2 void
+
+/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
+#define RECVFROM_TYPE_ARG2_IS_VOID 1
+
+/* Define to the type of arg 3 for recvfrom. */
+#define RECVFROM_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for recvfrom. */
+#define RECVFROM_TYPE_ARG4 int
+
+/* Define to the type pointed by arg 5 for recvfrom. */
+#define RECVFROM_TYPE_ARG5 struct sockaddr
+
+/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
+/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
+
+/* Define to the type pointed by arg 6 for recvfrom. */
+#define RECVFROM_TYPE_ARG6 socklen_t
+
+/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
+/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
+
+/* Define to the function return type for recvfrom. */
+#define RECVFROM_TYPE_RETV ssize_t
+
+/* Define to the type of arg 1 for recv. */
+#define RECV_TYPE_ARG1 int
+
+/* Define to the type of arg 2 for recv. */
+#define RECV_TYPE_ARG2 void *
+
+/* Define to the type of arg 3 for recv. */
+#define RECV_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for recv. */
+#define RECV_TYPE_ARG4 int
+
+/* Define to the function return type for recv. */
+#define RECV_TYPE_RETV ssize_t
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#define RETSIGTYPE void
+
+/* Define to the type qualifier of arg 2 for send. */
+#define SEND_QUAL_ARG2 const
+
+/* Define to the type of arg 1 for send. */
+#define SEND_TYPE_ARG1 int
+
+/* Define to the type of arg 2 for send. */
+#define SEND_TYPE_ARG2 void *
+
+/* Define to the type of arg 3 for send. */
+#define SEND_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for send. */
+#define SEND_TYPE_ARG4 int
+
+/* Define to the function return type for send. */
+#define SEND_TYPE_RETV ssize_t
+
+/* The size of `int', as computed by sizeof. */
+#define SIZEOF_INT 4
+
+/* The size of `long', as computed by sizeof. */
+#define SIZEOF_LONG 4
+
+/* The size of `short', as computed by sizeof. */
+#define SIZEOF_SHORT 2
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T 4
+
+/* The size of `struct in6_addr', as computed by sizeof. */
+#define SIZEOF_STRUCT_IN6_ADDR 16
+
+/* The size of `struct in_addr', as computed by sizeof. */
+#define SIZEOF_STRUCT_IN_ADDR 4
+
+/* The size of `time_t', as computed by sizeof. */
+#define SIZEOF_TIME_T 4
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Define to disable non-blocking sockets. */
+/* #undef USE_BLOCKING_SOCKETS */
+
+/* Version number of package */
+#define VERSION "-"
+
+/* Define to avoid automatic inclusion of winsock.h */
+/* #undef WIN32_LEAN_AND_MEAN */
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+ significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+# define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* # undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Define to 1 if OS is AIX. */
+#ifndef _ALL_SOURCE
+/* # undef _ALL_SOURCE */
+#endif
+
+/* Enable large inode numbers on Mac OS X 10.5. */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _FILE_OFFSET_BITS */
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Type to use in place of in_addr_t when system does not provide it. */
+/* #undef in_addr_t */
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* the signed version of size_t */
+/* #undef ssize_t */
diff --git a/src/c-ares/config_linux/ares_config.h b/src/c-ares/config_linux/ares_config.h
new file mode 100644
index 0000000000..8296bb7b17
--- /dev/null
+++ b/src/c-ares/config_linux/ares_config.h
@@ -0,0 +1,524 @@
+/* ares_config.h. Generated from ares_config.h.in by configure. */
+/* ares_config.h.in. Generated from configure.ac by autoheader. */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* define this if ares is built for a big endian system */
+/* #undef ARES_BIG_ENDIAN */
+
+/* when building as static part of libcurl */
+/* #undef BUILDING_LIBCURL */
+
+/* Defined for build that exposes internal static functions for testing. */
+/* #undef CARES_EXPOSE_STATICS */
+
+/* Defined for build with symbol hiding. */
+#define CARES_SYMBOL_HIDING 1
+
+/* Definition to make a library symbol externally visible. */
+#define CARES_SYMBOL_SCOPE_EXTERN __attribute__ ((__visibility__ ("default")))
+
+/* Use resolver library to configure cares */
+/* #undef CARES_USE_LIBRESOLV */
+
+/* if a /etc/inet dir is being used */
+/* #undef ETC_INET */
+
+/* Define to the type of arg 2 for gethostname. */
+#define GETHOSTNAME_TYPE_ARG2 size_t
+
+/* Define to the type qualifier of arg 1 for getnameinfo. */
+#define GETNAMEINFO_QUAL_ARG1 const
+
+/* Define to the type of arg 1 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
+
+/* Define to the type of arg 2 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG2 socklen_t
+
+/* Define to the type of args 4 and 6 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG46 socklen_t
+
+/* Define to the type of arg 7 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG7 int
+
+/* Specifies the number of arguments to getservbyport_r */
+#define GETSERVBYPORT_R_ARGS 6
+
+/* Specifies the size of the buffer to pass to getservbyport_r */
+#define GETSERVBYPORT_R_BUFSIZE 4096
+
+/* Define to 1 if you have AF_INET6. */
+#define HAVE_AF_INET6 1
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
+#define HAVE_ARPA_NAMESER_COMPAT_H 1
+
+/* Define to 1 if you have the <arpa/nameser.h> header file. */
+#define HAVE_ARPA_NAMESER_H 1
+
+/* Define to 1 if you have the <assert.h> header file. */
+#define HAVE_ASSERT_H 1
+
+/* Define to 1 if you have the `bitncmp' function. */
+/* #undef HAVE_BITNCMP */
+
+/* Define to 1 if bool is an available type. */
+#define HAVE_BOOL_T 1
+
+/* Define to 1 if you have the clock_gettime function and monotonic timer. */
+#define HAVE_CLOCK_GETTIME_MONOTONIC 1
+
+/* Define to 1 if you have the closesocket function. */
+/* #undef HAVE_CLOSESOCKET */
+
+/* Define to 1 if you have the CloseSocket camel case function. */
+/* #undef HAVE_CLOSESOCKET_CAMEL */
+
+/* Define to 1 if you have the connect function. */
+#define HAVE_CONNECT 1
+
+/* define if the compiler supports basic C++11 syntax */
+#define HAVE_CXX11 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the <errno.h> header file. */
+#define HAVE_ERRNO_H 1
+
+/* Define to 1 if you have the fcntl function. */
+#define HAVE_FCNTL 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
+#define HAVE_FCNTL_O_NONBLOCK 1
+
+/* Define to 1 if you have the freeaddrinfo function. */
+#define HAVE_FREEADDRINFO 1
+
+/* Define to 1 if you have a working getaddrinfo function. */
+#define HAVE_GETADDRINFO 1
+
+/* Define to 1 if the getaddrinfo function is threadsafe. */
+#define HAVE_GETADDRINFO_THREADSAFE 1
+
+/* Define to 1 if you have the getenv function. */
+#define HAVE_GETENV 1
+
+/* Define to 1 if you have the gethostbyaddr function. */
+#define HAVE_GETHOSTBYADDR 1
+
+/* Define to 1 if you have the gethostbyname function. */
+#define HAVE_GETHOSTBYNAME 1
+
+/* Define to 1 if you have the gethostname function. */
+#define HAVE_GETHOSTNAME 1
+
+/* Define to 1 if you have the getnameinfo function. */
+#define HAVE_GETNAMEINFO 1
+
+/* Define to 1 if you have the getservbyport_r function. */
+#define HAVE_GETSERVBYPORT_R 1
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#define HAVE_GETTIMEOFDAY 1
+
+/* Define to 1 if you have the `if_indextoname' function. */
+#define HAVE_IF_INDEXTONAME 1
+
+/* Define to 1 if you have a IPv6 capable working inet_net_pton function. */
+/* #undef HAVE_INET_NET_PTON */
+
+/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
+#define HAVE_INET_NTOP 1
+
+/* Define to 1 if you have a IPv6 capable working inet_pton function. */
+#define HAVE_INET_PTON 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the ioctl function. */
+#define HAVE_IOCTL 1
+
+/* Define to 1 if you have the ioctlsocket function. */
+/* #undef HAVE_IOCTLSOCKET */
+
+/* Define to 1 if you have the IoctlSocket camel case function. */
+/* #undef HAVE_IOCTLSOCKET_CAMEL */
+
+/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
+ */
+/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
+
+/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
+/* #undef HAVE_IOCTLSOCKET_FIONBIO */
+
+/* Define to 1 if you have a working ioctl FIONBIO function. */
+#define HAVE_IOCTL_FIONBIO 1
+
+/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
+#define HAVE_IOCTL_SIOCGIFADDR 1
+
+/* Define to 1 if you have the `resolve' library (-lresolve). */
+/* #undef HAVE_LIBRESOLVE */
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* if your compiler supports LL */
+#define HAVE_LL 1
+
+/* Define to 1 if the compiler supports the 'long long' data type. */
+#define HAVE_LONGLONG 1
+
+/* Define to 1 if you have the malloc.h header file. */
+#define HAVE_MALLOC_H 1
+
+/* Define to 1 if you have the memory.h header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the MSG_NOSIGNAL flag. */
+#define HAVE_MSG_NOSIGNAL 1
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#define HAVE_NETDB_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#define HAVE_NETINET_TCP_H 1
+
+/* Define to 1 if you have the <net/if.h> header file. */
+#define HAVE_NET_IF_H 1
+
+/* Define to 1 if you have PF_INET6. */
+#define HAVE_PF_INET6 1
+
+/* Define to 1 if you have the recv function. */
+#define HAVE_RECV 1
+
+/* Define to 1 if you have the recvfrom function. */
+#define HAVE_RECVFROM 1
+
+/* Define to 1 if you have the send function. */
+#define HAVE_SEND 1
+
+/* Define to 1 if you have the setsockopt function. */
+#define HAVE_SETSOCKOPT 1
+
+/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
+/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
+
+/* Define to 1 if you have the <signal.h> header file. */
+#define HAVE_SIGNAL_H 1
+
+/* Define to 1 if sig_atomic_t is an available typedef. */
+#define HAVE_SIG_ATOMIC_T 1
+
+/* Define to 1 if sig_atomic_t is already defined as volatile. */
+/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
+
+/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
+#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
+
+/* Define to 1 if you have the socket function. */
+#define HAVE_SOCKET 1
+
+/* Define to 1 if you have the <socket.h> header file. */
+/* #undef HAVE_SOCKET_H */
+
+/* Define to 1 if you have the <stdbool.h> header file. */
+#define HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the strcasecmp function. */
+#define HAVE_STRCASECMP 1
+
+/* Define to 1 if you have the strcmpi function. */
+/* #undef HAVE_STRCMPI */
+
+/* Define to 1 if you have the strdup function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the stricmp function. */
+/* #undef HAVE_STRICMP */
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the strncasecmp function. */
+#define HAVE_STRNCASECMP 1
+
+/* Define to 1 if you have the strncmpi function. */
+/* #undef HAVE_STRNCMPI */
+
+/* Define to 1 if you have the strnicmp function. */
+/* #undef HAVE_STRNICMP */
+
+/* Define to 1 if you have the <stropts.h> header file. */
+#define HAVE_STROPTS_H 1
+
+/* Define to 1 if you have struct addrinfo. */
+#define HAVE_STRUCT_ADDRINFO 1
+
+/* Define to 1 if you have struct in6_addr. */
+#define HAVE_STRUCT_IN6_ADDR 1
+
+/* Define to 1 if you have struct sockaddr_in6. */
+#define HAVE_STRUCT_SOCKADDR_IN6 1
+
+/* if struct sockaddr_storage is defined */
+#define HAVE_STRUCT_SOCKADDR_STORAGE 1
+
+/* Define to 1 if you have the timeval struct. */
+#define HAVE_STRUCT_TIMEVAL 1
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#define HAVE_SYS_IOCTL_H 1
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#define HAVE_SYS_PARAM_H 1
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#define HAVE_SYS_SELECT_H 1
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#define HAVE_SYS_UIO_H 1
+
+/* Define to 1 if you have the <time.h> header file. */
+#define HAVE_TIME_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the windows.h header file. */
+/* #undef HAVE_WINDOWS_H */
+
+/* Define to 1 if you have the winsock2.h header file. */
+/* #undef HAVE_WINSOCK2_H */
+
+/* Define to 1 if you have the winsock.h header file. */
+/* #undef HAVE_WINSOCK_H */
+
+/* Define to 1 if you have the writev function. */
+#define HAVE_WRITEV 1
+
+/* Define to 1 if you have the ws2tcpip.h header file. */
+/* #undef HAVE_WS2TCPIP_H */
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+ */
+#define LT_OBJDIR ".libs/"
+
+/* Define to 1 if you need the malloc.h header file even with stdlib.h */
+/* #undef NEED_MALLOC_H */
+
+/* Define to 1 if you need the memory.h header file even with stdlib.h */
+/* #undef NEED_MEMORY_H */
+
+/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
+/* #undef NEED_REENTRANT */
+
+/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
+/* #undef NEED_THREAD_SAFE */
+
+/* cpu-machine-OS */
+#define OS "x86_64-unknown-linux-gnu"
+
+/* Name of package */
+#define PACKAGE "c-ares"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "c-ares mailing list: http://cool.haxx.se/mailman/listinfo/c-ares"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "c-ares"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "c-ares -"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "c-ares"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "-"
+
+/* a suitable file/device to read random data from */
+#define RANDOM_FILE "/dev/urandom"
+
+/* Define to the type qualifier pointed by arg 5 for recvfrom. */
+#define RECVFROM_QUAL_ARG5
+
+/* Define to the type of arg 1 for recvfrom. */
+#define RECVFROM_TYPE_ARG1 int
+
+/* Define to the type pointed by arg 2 for recvfrom. */
+#define RECVFROM_TYPE_ARG2 void
+
+/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
+#define RECVFROM_TYPE_ARG2_IS_VOID 1
+
+/* Define to the type of arg 3 for recvfrom. */
+#define RECVFROM_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for recvfrom. */
+#define RECVFROM_TYPE_ARG4 int
+
+/* Define to the type pointed by arg 5 for recvfrom. */
+#define RECVFROM_TYPE_ARG5 struct sockaddr
+
+/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
+/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
+
+/* Define to the type pointed by arg 6 for recvfrom. */
+#define RECVFROM_TYPE_ARG6 socklen_t
+
+/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
+/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
+
+/* Define to the function return type for recvfrom. */
+#define RECVFROM_TYPE_RETV ssize_t
+
+/* Define to the type of arg 1 for recv. */
+#define RECV_TYPE_ARG1 int
+
+/* Define to the type of arg 2 for recv. */
+#define RECV_TYPE_ARG2 void *
+
+/* Define to the type of arg 3 for recv. */
+#define RECV_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for recv. */
+#define RECV_TYPE_ARG4 int
+
+/* Define to the function return type for recv. */
+#define RECV_TYPE_RETV ssize_t
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#define RETSIGTYPE void
+
+/* Define to the type qualifier of arg 2 for send. */
+#define SEND_QUAL_ARG2 const
+
+/* Define to the type of arg 1 for send. */
+#define SEND_TYPE_ARG1 int
+
+/* Define to the type of arg 2 for send. */
+#define SEND_TYPE_ARG2 void *
+
+/* Define to the type of arg 3 for send. */
+#define SEND_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for send. */
+#define SEND_TYPE_ARG4 int
+
+/* Define to the function return type for send. */
+#define SEND_TYPE_RETV ssize_t
+
+/* The size of `int', as computed by sizeof. */
+#define SIZEOF_INT 4
+
+/* The size of `long', as computed by sizeof. */
+#define SIZEOF_LONG 8
+
+/* The size of `short', as computed by sizeof. */
+#define SIZEOF_SHORT 2
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T 8
+
+/* The size of `struct in6_addr', as computed by sizeof. */
+#define SIZEOF_STRUCT_IN6_ADDR 16
+
+/* The size of `struct in_addr', as computed by sizeof. */
+#define SIZEOF_STRUCT_IN_ADDR 4
+
+/* The size of `time_t', as computed by sizeof. */
+#define SIZEOF_TIME_T 8
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Define to disable non-blocking sockets. */
+/* #undef USE_BLOCKING_SOCKETS */
+
+/* Version number of package */
+#define VERSION "-"
+
+/* Define to avoid automatic inclusion of winsock.h */
+/* #undef WIN32_LEAN_AND_MEAN */
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+ significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+# define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* # undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Define to 1 if OS is AIX. */
+#ifndef _ALL_SOURCE
+/* # undef _ALL_SOURCE */
+#endif
+
+/* Enable large inode numbers on Mac OS X 10.5. */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _FILE_OFFSET_BITS */
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Type to use in place of in_addr_t when system does not provide it. */
+/* #undef in_addr_t */
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* the signed version of size_t */
+/* #undef ssize_t */
diff --git a/src/c-ares/gen_build_yaml.py b/src/c-ares/gen_build_yaml.py
new file mode 100755
index 0000000000..ae61c7856a
--- /dev/null
+++ b/src/c-ares/gen_build_yaml.py
@@ -0,0 +1,149 @@
+#!/usr/bin/env python2.7
+
+# Copyright 2015, 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.
+
+import re
+import os
+import sys
+import yaml
+
+os.chdir(os.path.dirname(sys.argv[0])+'/../..')
+
+out = {}
+
+try:
+ def gen_ares_build(x):
+ subprocess.call("third_party/c-ares/buildconf", shell=True)
+ subprocess.call("third_party/c-ares/configure", shell=True)
+
+ def config_platform(x):
+ if 'linux' in sys.platform:
+ return 'src/c-ares/config_linux/ares_config.h'
+ if 'darwin' in sys.platform:
+ return 'src/c-ares/config_darwin/ares_config.h'
+ if not os.path.isfile('third_party/c-ares/ares_config.h'):
+ gen_ares_build(x)
+ return 'third_party/c-ares/ares_config.h'
+
+ def ares_build(x):
+ if os.path.isfile('src/c-ares/ares_build.h'):
+ return 'src/c-ares/ares_build.h'
+ if not os.path.isfile('third_party/c-ares/ares_build.h'):
+ gen_ares_build(x)
+ return 'third_party/c-ares/ares_build.h'
+
+ out['libs'] = [{
+ 'name': 'ares',
+ 'defaults': 'ares',
+ 'build': 'private',
+ 'language': 'c',
+ 'secure': 'no',
+ 'src': [
+ "third_party/c-ares/ares__close_sockets.c",
+ "third_party/c-ares/ares__get_hostent.c",
+ "third_party/c-ares/ares__read_line.c",
+ "third_party/c-ares/ares__timeval.c",
+ "third_party/c-ares/ares_cancel.c",
+ "third_party/c-ares/ares_create_query.c",
+ "third_party/c-ares/ares_data.c",
+ "third_party/c-ares/ares_destroy.c",
+ "third_party/c-ares/ares_expand_name.c",
+ "third_party/c-ares/ares_expand_string.c",
+ "third_party/c-ares/ares_fds.c",
+ "third_party/c-ares/ares_free_hostent.c",
+ "third_party/c-ares/ares_free_string.c",
+ "third_party/c-ares/ares_getenv.c",
+ "third_party/c-ares/ares_gethostbyaddr.c",
+ "third_party/c-ares/ares_gethostbyname.c",
+ "third_party/c-ares/ares_getnameinfo.c",
+ "third_party/c-ares/ares_getopt.c",
+ "third_party/c-ares/ares_getsock.c",
+ "third_party/c-ares/ares_init.c",
+ "third_party/c-ares/ares_library_init.c",
+ "third_party/c-ares/ares_llist.c",
+ "third_party/c-ares/ares_mkquery.c",
+ "third_party/c-ares/ares_nowarn.c",
+ "third_party/c-ares/ares_options.c",
+ "third_party/c-ares/ares_parse_a_reply.c",
+ "third_party/c-ares/ares_parse_aaaa_reply.c",
+ "third_party/c-ares/ares_parse_mx_reply.c",
+ "third_party/c-ares/ares_parse_naptr_reply.c",
+ "third_party/c-ares/ares_parse_ns_reply.c",
+ "third_party/c-ares/ares_parse_ptr_reply.c",
+ "third_party/c-ares/ares_parse_soa_reply.c",
+ "third_party/c-ares/ares_parse_srv_reply.c",
+ "third_party/c-ares/ares_parse_txt_reply.c",
+ "third_party/c-ares/ares_platform.c",
+ "third_party/c-ares/ares_process.c",
+ "third_party/c-ares/ares_query.c",
+ "third_party/c-ares/ares_search.c",
+ "third_party/c-ares/ares_send.c",
+ "third_party/c-ares/ares_strcasecmp.c",
+ "third_party/c-ares/ares_strdup.c",
+ "third_party/c-ares/ares_strerror.c",
+ "third_party/c-ares/ares_timeout.c",
+ "third_party/c-ares/ares_version.c",
+ "third_party/c-ares/ares_writev.c",
+ "third_party/c-ares/bitncmp.c",
+ "third_party/c-ares/inet_net_pton.c",
+ "third_party/c-ares/inet_ntop.c",
+ "third_party/c-ares/windows_port.c",
+ ],
+ 'headers': [
+ "third_party/c-ares/ares.h",
+ "third_party/c-ares/ares_data.h",
+ "third_party/c-ares/ares_dns.h",
+ "third_party/c-ares/ares_getenv.h",
+ "third_party/c-ares/ares_getopt.h",
+ "third_party/c-ares/ares_inet_net_pton.h",
+ "third_party/c-ares/ares_iphlpapi.h",
+ "third_party/c-ares/ares_ipv6.h",
+ "third_party/c-ares/ares_library_init.h",
+ "third_party/c-ares/ares_llist.h",
+ "third_party/c-ares/ares_nowarn.h",
+ "third_party/c-ares/ares_platform.h",
+ "third_party/c-ares/ares_private.h",
+ "third_party/c-ares/ares_rules.h",
+ "third_party/c-ares/ares_setup.h",
+ "third_party/c-ares/ares_strcasecmp.h",
+ "third_party/c-ares/ares_strdup.h",
+ "third_party/c-ares/ares_version.h",
+ "third_party/c-ares/bitncmp.h",
+ "third_party/c-ares/config-win32.h",
+ "third_party/c-ares/setup_once.h",
+ "src/c-ares/ares_build.h",
+ "src/c-ares/config_linux/ares_config.h",
+ "src/c-ares/config_darwin/ares_config.h"
+ ],
+ }]
+except:
+ pass
+
+print yaml.dump(out)
diff --git a/src/core/ext/client_config/client_channel.c b/src/core/ext/client_config/client_channel.c
index 2c0c4abffc..2977639db7 100644
--- a/src/core/ext/client_config/client_channel.c
+++ b/src/core/ext/client_config/client_channel.c
@@ -233,7 +233,7 @@ static void cc_on_config_changed(grpc_exec_ctx *exec_ctx, void *arg,
watch_lb_policy(exec_ctx, chand, lb_policy, state);
}
GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver");
- grpc_resolver_next(exec_ctx, chand->resolver,
+ grpc_resolver_next(exec_ctx, chand->resolver, NULL,
&chand->incoming_configuration,
&chand->on_config_changed);
gpr_mu_unlock(&chand->mu_config);
@@ -411,7 +411,9 @@ static int cc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *elemp,
if (chand->resolver != NULL && !chand->started_resolving) {
chand->started_resolving = 1;
GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver");
- grpc_resolver_next(exec_ctx, chand->resolver,
+ // grpc_polling_entity_add_to_pollset_set(exec_ctx, calld->pollent,
+ // chand->interested_parties);
+ grpc_resolver_next(exec_ctx, chand->resolver, calld->pollent,
&chand->incoming_configuration,
&chand->on_config_changed);
}
@@ -523,13 +525,18 @@ void grpc_client_channel_set_resolver(grpc_exec_ctx *exec_ctx,
GPR_ASSERT(!chand->resolver);
chand->resolver = resolver;
GRPC_RESOLVER_REF(resolver, "channel");
- if (!grpc_closure_list_empty(chand->waiting_for_config_closures) ||
- chand->exit_idle_when_lb_policy_arrives) {
- chand->started_resolving = 1;
- GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver");
- grpc_resolver_next(exec_ctx, resolver, &chand->incoming_configuration,
- &chand->on_config_changed);
- }
+ // TODO(zyc): check if the following part is needed
+ // if (!grpc_closure_list_empty(chand->waiting_for_config_closures) ||
+ // chand->exit_idle_when_lb_policy_arrives) {
+ // chand->started_resolving = 1;
+ // GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver");
+ // grpc_resolver_next(exec_ctx, resolver, &chand->incoming_configuration,
+ // &chand->on_config_changed);
+ // gpr_log(GPR_ERROR, "%" PRIuPTR "%" PRIuPTR "%"
+ // PRIuPTR, chand->interested_parties->pollset_count,
+ // chand->interested_parties->pollset_set_count,
+ // chand->interested_parties->fd_count);
+ // }
gpr_mu_unlock(&chand->mu_config);
}
@@ -547,7 +554,7 @@ grpc_connectivity_state grpc_client_channel_check_connectivity_state(
if (!chand->started_resolving && chand->resolver != NULL) {
GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver");
chand->started_resolving = 1;
- grpc_resolver_next(exec_ctx, chand->resolver,
+ grpc_resolver_next(exec_ctx, chand->resolver, NULL,
&chand->incoming_configuration,
&chand->on_config_changed);
}
diff --git a/src/core/ext/client_config/resolver.c b/src/core/ext/client_config/resolver.c
index eb004455bd..ad9d30b302 100644
--- a/src/core/ext/client_config/resolver.c
+++ b/src/core/ext/client_config/resolver.c
@@ -36,6 +36,7 @@
void grpc_resolver_init(grpc_resolver *resolver,
const grpc_resolver_vtable *vtable) {
resolver->vtable = vtable;
+ resolver->pollset_set = grpc_pollset_set_create();
gpr_ref_init(&resolver->refs, 1);
}
@@ -62,6 +63,7 @@ void grpc_resolver_unref(grpc_resolver *resolver,
void grpc_resolver_unref(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver) {
#endif
if (gpr_unref(&resolver->refs)) {
+ grpc_pollset_set_destroy(resolver->pollset_set);
resolver->vtable->destroy(exec_ctx, resolver);
}
}
@@ -75,8 +77,16 @@ void grpc_resolver_channel_saw_error(grpc_exec_ctx *exec_ctx,
resolver->vtable->channel_saw_error(exec_ctx, resolver);
}
+// void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
+// grpc_client_config **target_config,
+// grpc_closure *on_complete) {
+// resolver->vtable->next(exec_ctx, resolver, target_config, on_complete);
+// }
+
void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
+ grpc_polling_entity *pollent,
grpc_client_config **target_config,
grpc_closure *on_complete) {
- resolver->vtable->next(exec_ctx, resolver, target_config, on_complete);
+ resolver->vtable->next(exec_ctx, resolver, pollent, target_config,
+ on_complete);
}
diff --git a/src/core/ext/client_config/resolver.h b/src/core/ext/client_config/resolver.h
index 6ecb5d2774..fd907b2049 100644
--- a/src/core/ext/client_config/resolver.h
+++ b/src/core/ext/client_config/resolver.h
@@ -45,6 +45,7 @@ typedef struct grpc_resolver_vtable grpc_resolver_vtable;
objects */
struct grpc_resolver {
const grpc_resolver_vtable *vtable;
+ grpc_pollset_set *pollset_set;
gpr_refcount refs;
};
@@ -52,8 +53,12 @@ struct grpc_resolver_vtable {
void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver);
void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver);
void (*channel_saw_error)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver);
+ // void (*next)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
+ // grpc_client_config **target_config, grpc_closure
+ // *on_complete);
void (*next)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
- grpc_client_config **target_config, grpc_closure *on_complete);
+ grpc_polling_entity *pollent, grpc_client_config **target_config,
+ grpc_closure *on_complete);
};
#ifdef GRPC_RESOLVER_REFCOUNT_DEBUG
@@ -87,7 +92,12 @@ void grpc_resolver_channel_saw_error(grpc_exec_ctx *exec_ctx,
If resolution is fatally broken, set *target_config to NULL and
schedule on_complete. */
+// void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
+// grpc_client_config **target_config,
+// grpc_closure *on_complete);
+
void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
+ grpc_polling_entity *pollent,
grpc_client_config **target_config,
grpc_closure *on_complete);
diff --git a/src/core/ext/resolver/dns/c_ares/dns_resolver.c b/src/core/ext/resolver/dns/c_ares/dns_resolver.c
new file mode 100644
index 0000000000..9f7b15335f
--- /dev/null
+++ b/src/core/ext/resolver/dns/c_ares/dns_resolver.c
@@ -0,0 +1,374 @@
+/*
+ *
+ * Copyright 2015, 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 <grpc/support/port_platform.h>
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/host_port.h>
+#include <grpc/support/string_util.h>
+
+#include "src/core/ext/client_config/lb_policy_registry.h"
+#include "src/core/ext/client_config/resolver_registry.h"
+#include "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/support/backoff.h"
+#include "src/core/lib/support/string.h"
+
+#define BACKOFF_MULTIPLIER 1.6
+#define BACKOFF_JITTER 0.2
+#define BACKOFF_MIN_SECONDS 1
+#define BACKOFF_MAX_SECONDS 120
+
+typedef struct {
+ /** base class: must be first */
+ grpc_resolver base;
+ /** refcount */
+ gpr_refcount refs;
+ /** name to resolve */
+ char *name;
+ /** default port to use */
+ char *default_port;
+ /** subchannel factory */
+ grpc_client_channel_factory *client_channel_factory;
+ /** load balancing policy name */
+ char *lb_policy_name;
+
+ /** mutex guarding the rest of the state */
+ gpr_mu mu;
+ /** are we currently resolving? */
+ int resolving;
+ /** which version of resolved_config have we published? */
+ int published_version;
+ /** which version of resolved_config is current? */
+ int resolved_version;
+ /** pending next completion, or NULL */
+ grpc_closure *next_completion;
+ /** target config address for next completion */
+ grpc_client_config **target_config;
+ /** current (fully resolved) config */
+ grpc_client_config *resolved_config;
+ /** retry timer */
+ bool have_retry_timer;
+ grpc_timer retry_timer;
+ /** retry backoff state */
+ gpr_backoff backoff_state;
+
+ /** currently resolving addresses */
+ grpc_resolved_addresses *addresses;
+
+ grpc_polling_entity *pollent;
+} dns_resolver;
+
+static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
+
+static void dns_start_resolving_locked(grpc_exec_ctx *exec_ctx,
+ dns_resolver *r);
+static void dns_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx,
+ dns_resolver *r);
+
+static void dns_shutdown(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
+static void dns_channel_saw_error(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
+static void dns_next(grpc_exec_ctx *exec_ctx, grpc_resolver *r,
+ grpc_polling_entity *pollent,
+ grpc_client_config **target_config,
+ grpc_closure *on_complete);
+
+static const grpc_resolver_vtable dns_resolver_vtable = {
+ dns_destroy, dns_shutdown, dns_channel_saw_error, dns_next};
+
+static void dns_shutdown(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver) {
+ dns_resolver *r = (dns_resolver *)resolver;
+ gpr_mu_lock(&r->mu);
+ if (r->have_retry_timer) {
+ grpc_timer_cancel(exec_ctx, &r->retry_timer);
+ }
+ if (r->next_completion != NULL) {
+ *r->target_config = NULL;
+ grpc_exec_ctx_sched(exec_ctx, r->next_completion,
+ GRPC_ERROR_CREATE("Resolver Shutdown"), NULL);
+ r->next_completion = NULL;
+ }
+ gpr_mu_unlock(&r->mu);
+}
+
+static void dns_channel_saw_error(grpc_exec_ctx *exec_ctx,
+ grpc_resolver *resolver) {
+ dns_resolver *r = (dns_resolver *)resolver;
+ gpr_mu_lock(&r->mu);
+ if (!r->resolving) {
+ gpr_backoff_reset(&r->backoff_state);
+ dns_start_resolving_locked(exec_ctx, r);
+ }
+ gpr_mu_unlock(&r->mu);
+}
+
+static void dns_on_retry_timer(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ dns_resolver *r = arg;
+
+ gpr_mu_lock(&r->mu);
+ r->have_retry_timer = false;
+ if (error == GRPC_ERROR_NONE) {
+ if (!r->resolving) {
+ dns_start_resolving_locked(exec_ctx, r);
+ }
+ }
+ gpr_mu_unlock(&r->mu);
+
+ GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "retry-timer");
+}
+
+static void dns_on_resolved(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ gpr_log(GPR_ERROR, "dns_on_resolved");
+ dns_resolver *r = arg;
+ grpc_client_config *config = NULL;
+ grpc_lb_policy *lb_policy;
+ gpr_log(GPR_ERROR, "before mu");
+ gpr_mu_lock(&r->mu);
+ gpr_log(GPR_ERROR, "after mu");
+ GPR_ASSERT(r->resolving);
+ r->resolving = 0;
+ grpc_resolved_addresses *addresses = r->addresses;
+ if (addresses != NULL) {
+ gpr_log(GPR_ERROR, "addresses != NULL");
+ grpc_lb_policy_args lb_policy_args;
+ config = grpc_client_config_create();
+ memset(&lb_policy_args, 0, sizeof(lb_policy_args));
+ lb_policy_args.addresses = addresses;
+ lb_policy_args.client_channel_factory = r->client_channel_factory;
+ lb_policy =
+ grpc_lb_policy_create(exec_ctx, r->lb_policy_name, &lb_policy_args);
+ if (lb_policy != NULL) {
+ grpc_client_config_set_lb_policy(config, lb_policy);
+ GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "construction");
+ }
+ if (r->pollent) {
+ grpc_polling_entity_del_from_pollset_set(exec_ctx, r->pollent,
+ r->base.pollset_set);
+ r->pollent = NULL;
+ }
+ grpc_resolved_addresses_destroy(addresses);
+ } else {
+ gpr_log(GPR_ERROR, "addresses == NULL");
+ gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
+ gpr_timespec next_try = gpr_backoff_step(&r->backoff_state, now);
+ gpr_timespec timeout = gpr_time_sub(next_try, now);
+ const char *msg = grpc_error_string(error);
+ gpr_log(GPR_DEBUG, "dns resolution failed: %s", msg);
+ grpc_error_free_string(msg);
+ GPR_ASSERT(!r->have_retry_timer);
+ r->have_retry_timer = true;
+ GRPC_RESOLVER_REF(&r->base, "retry-timer");
+ if (gpr_time_cmp(timeout, gpr_time_0(timeout.clock_type)) <= 0) {
+ gpr_log(GPR_DEBUG, "retrying in %" PRId64 ".%09d seconds", timeout.tv_sec,
+ timeout.tv_nsec);
+ } else {
+ gpr_log(GPR_DEBUG, "retrying immediately");
+ }
+ grpc_timer_init(exec_ctx, &r->retry_timer, next_try, dns_on_retry_timer, r,
+ now);
+ }
+ if (r->resolved_config) {
+ grpc_client_config_unref(exec_ctx, r->resolved_config);
+ }
+ r->resolved_config = config;
+ r->resolved_version++;
+ dns_maybe_finish_next_locked(exec_ctx, r);
+ gpr_mu_unlock(&r->mu);
+ gpr_log(GPR_ERROR, "mu_unlock");
+ GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "dns-resolving");
+ gpr_log(GPR_ERROR, "after GRPC_RESOLVER_UNREF");
+}
+
+static void dns_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
+ grpc_polling_entity *pollent,
+ grpc_client_config **target_config,
+ grpc_closure *on_complete) {
+ dns_resolver *r = (dns_resolver *)resolver;
+ gpr_mu_lock(&r->mu);
+ GPR_ASSERT(!r->next_completion);
+ r->next_completion = on_complete;
+ r->target_config = target_config;
+ if (r->resolved_version == 0 && !r->resolving) {
+ gpr_backoff_reset(&r->backoff_state);
+ gpr_log(GPR_ERROR, "dns_start_resolving_locked");
+ GRPC_RESOLVER_REF(&r->base, "dns-resolving");
+ GPR_ASSERT(!r->resolving);
+ r->resolving = 1;
+ r->addresses = NULL;
+ r->pollent = NULL;
+#ifdef GRPC_NATIVE_ADDRESS_RESOLVE
+ grpc_resolve_address(exec_ctx, r->name, r->default_port,
+ grpc_closure_create(dns_on_resolved, r),
+ &r->addresses);
+#else
+ if (pollent) {
+ r->pollent = pollent;
+ grpc_polling_entity_add_to_pollset_set(exec_ctx, pollent,
+ r->base.pollset_set);
+ } else {
+ gpr_log(GPR_ERROR, "pollent is NULL");
+ }
+ grpc_resolve_address_ares(
+ exec_ctx, r->name, r->default_port, r->base.pollset_set,
+ grpc_closure_create(dns_on_resolved, r), &r->addresses);
+#endif
+ } else {
+ dns_maybe_finish_next_locked(exec_ctx, r);
+ }
+ gpr_mu_unlock(&r->mu);
+}
+
+static void dns_start_resolving_locked(grpc_exec_ctx *exec_ctx,
+ dns_resolver *r) {
+ gpr_log(GPR_ERROR, "dns_start_resolving_locked");
+ GRPC_RESOLVER_REF(&r->base, "dns-resolving");
+ GPR_ASSERT(!r->resolving);
+ r->resolving = 1;
+ r->addresses = NULL;
+#ifdef GRPC_NATIVE_ADDRESS_RESOLVE
+ grpc_resolve_address(exec_ctx, r->name, r->default_port,
+ grpc_closure_create(dns_on_resolved, r), &r->addresses);
+#else
+ grpc_resolve_address_ares(
+ exec_ctx, r->name, r->default_port, r->base.pollset_set,
+ grpc_closure_create(dns_on_resolved, r), &r->addresses);
+#endif
+ // grpc_resolve_address(exec_ctx, r->name, r->default_port,
+ // grpc_closure_create(dns_on_resolved, r), &r->addresses);
+}
+
+static void dns_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx,
+ dns_resolver *r) {
+ if (r->next_completion != NULL &&
+ r->resolved_version != r->published_version) {
+ *r->target_config = r->resolved_config;
+ if (r->resolved_config) {
+ grpc_client_config_ref(r->resolved_config);
+ }
+ grpc_exec_ctx_sched(exec_ctx, r->next_completion, GRPC_ERROR_NONE, NULL);
+ r->next_completion = NULL;
+ r->published_version = r->resolved_version;
+ }
+}
+
+static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) {
+ dns_resolver *r = (dns_resolver *)gr;
+ gpr_mu_destroy(&r->mu);
+#ifndef GRPC_NATIVE_ADDRESS_RESOLVE
+ grpc_ares_cleanup();
+#endif
+ if (r->resolved_config) {
+ grpc_client_config_unref(exec_ctx, r->resolved_config);
+ }
+ grpc_client_channel_factory_unref(exec_ctx, r->client_channel_factory);
+ gpr_free(r->name);
+ gpr_free(r->default_port);
+ gpr_free(r->lb_policy_name);
+ gpr_free(r);
+}
+
+static grpc_resolver *dns_create(grpc_resolver_args *args,
+ const char *default_port,
+ const char *lb_policy_name) {
+ dns_resolver *r;
+ grpc_error *error = GRPC_ERROR_NONE;
+ const char *path = args->uri->path;
+
+ if (0 != strcmp(args->uri->authority, "")) {
+ gpr_log(GPR_ERROR, "authority based dns uri's not supported");
+ return NULL;
+ }
+
+#ifndef GRPC_NATIVE_ADDRESS_RESOLVE
+ error = grpc_ares_init();
+#endif
+ if (error != GRPC_ERROR_NONE) {
+ GRPC_LOG_IF_ERROR("ares_library_init() failed", error);
+ return NULL;
+ }
+
+ if (path[0] == '/') ++path;
+
+ r = gpr_malloc(sizeof(dns_resolver));
+ memset(r, 0, sizeof(*r));
+ gpr_ref_init(&r->refs, 1);
+ gpr_mu_init(&r->mu);
+ grpc_resolver_init(&r->base, &dns_resolver_vtable);
+ r->name = gpr_strdup(path);
+ r->default_port = gpr_strdup(default_port);
+ r->client_channel_factory = args->client_channel_factory;
+ gpr_backoff_init(&r->backoff_state, BACKOFF_MULTIPLIER, BACKOFF_JITTER,
+ BACKOFF_MIN_SECONDS * 1000, BACKOFF_MAX_SECONDS * 1000);
+ grpc_client_channel_factory_ref(r->client_channel_factory);
+ r->lb_policy_name = gpr_strdup(lb_policy_name);
+ return &r->base;
+}
+
+/*
+ * FACTORY
+ */
+
+static void dns_factory_ref(grpc_resolver_factory *factory) {}
+
+static void dns_factory_unref(grpc_resolver_factory *factory) {}
+
+static grpc_resolver *dns_factory_create_resolver(
+ grpc_resolver_factory *factory, grpc_resolver_args *args) {
+ return dns_create(args, "https", "pick_first");
+}
+
+static char *dns_factory_get_default_host_name(grpc_resolver_factory *factory,
+ grpc_uri *uri) {
+ const char *path = uri->path;
+ if (path[0] == '/') ++path;
+ return gpr_strdup(path);
+}
+
+static const grpc_resolver_factory_vtable dns_factory_vtable = {
+ dns_factory_ref, dns_factory_unref, dns_factory_create_resolver,
+ dns_factory_get_default_host_name, "dns"};
+static grpc_resolver_factory dns_resolver_factory = {&dns_factory_vtable};
+
+static grpc_resolver_factory *dns_resolver_factory_create() {
+ return &dns_resolver_factory;
+}
+
+void grpc_resolver_dns_ares_init(void) {
+ grpc_register_resolver_type(dns_resolver_factory_create());
+}
+
+void grpc_resolver_dns_ares_shutdown(void) {}
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_dirver_windows.c b/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_dirver_windows.c
new file mode 100644
index 0000000000..cd8dfbc326
--- /dev/null
+++ b/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_dirver_windows.c
@@ -0,0 +1,34 @@
+/*
+ *
+ * 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/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h"
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h b/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h
new file mode 100644
index 0000000000..25ba5e59de
--- /dev/null
+++ b/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h
@@ -0,0 +1,59 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
+#define GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
+
+#include <grpc/support/port_platform.h>
+#ifndef GRPC_NATIVE_ADDRESS_RESOLVE
+
+#include <ares.h>
+
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+
+typedef struct grpc_ares_ev_driver grpc_ares_ev_driver;
+
+void grpc_ares_notify_on_event(grpc_exec_ctx *exec_ctx,
+ grpc_ares_ev_driver *ev_driver);
+void grpc_ares_gethostbyname(grpc_ares_ev_driver *ev_driver, const char *host,
+ ares_host_callback on_done_cb, void *arg);
+ares_channel *grpc_ares_ev_driver_get_channel(grpc_ares_ev_driver *ev_driver);
+
+grpc_error *grpc_ares_ev_driver_create(grpc_ares_ev_driver **ev_driver,
+ grpc_pollset_set *pollset_set);
+void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver *ev_driver);
+
+#endif /* GRPC_NATIVE_ADDRESS_RESOLVE */
+
+#endif /* GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H */
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c b/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
new file mode 100644
index 0000000000..b65974e1bb
--- /dev/null
+++ b/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
@@ -0,0 +1,205 @@
+/*
+ *
+ * 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 <grpc/support/port_platform.h>
+#ifndef GRPC_NATIVE_ADDRESS_RESOLVE
+#ifdef GPR_POSIX_SOCKET
+
+#include "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h"
+
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+
+#include <ares.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/time.h>
+#include <grpc/support/useful.h>
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/support/block_annotate.h"
+#include "src/core/lib/support/string.h"
+
+typedef struct fd_pair {
+ grpc_fd *grpc_fd;
+ int fd;
+ struct fd_pair *next;
+} fd_pair;
+
+struct grpc_ares_ev_driver {
+ bool closing;
+ ares_socket_t socks[ARES_GETSOCK_MAXNUM];
+ int bitmask;
+ grpc_closure driver_closure;
+ grpc_pollset_set *pollset_set;
+ ares_channel channel;
+ fd_pair *fds;
+};
+
+grpc_error *grpc_ares_ev_driver_create(grpc_ares_ev_driver **ev_driver,
+ grpc_pollset_set *pollset_set) {
+ int status;
+ *ev_driver = gpr_malloc(sizeof(grpc_ares_ev_driver));
+ status = ares_init(&(*ev_driver)->channel);
+ if (status != ARES_SUCCESS) {
+ gpr_free(*ev_driver);
+ return GRPC_ERROR_CREATE("Failed to init ares channel");
+ }
+ (*ev_driver)->pollset_set = pollset_set;
+ (*ev_driver)->fds = NULL;
+ (*ev_driver)->closing = false;
+ return GRPC_ERROR_NONE;
+}
+
+void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver *ev_driver) {
+ // ev_driver->pollset_set = NULL;
+ ev_driver->closing = true;
+}
+
+static fd_pair *get_fd(fd_pair **head, int fd) {
+ fd_pair dummy_head;
+ fd_pair *node;
+ fd_pair *ret;
+ dummy_head.next = *head;
+ node = &dummy_head;
+ while (node->next != NULL) {
+ if (node->next->fd == fd) {
+ ret = node->next;
+ node->next = node->next->next;
+ *head = dummy_head.next;
+ return ret;
+ }
+ }
+ return NULL;
+}
+
+static void driver_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
+ grpc_ares_ev_driver *d = arg;
+ size_t i;
+ gpr_log(GPR_ERROR, "driver_cb");
+ if (error == GRPC_ERROR_NONE) {
+ gpr_log(GPR_ERROR, "GRPC_ERROR_NONE");
+ for (i = 0; i < ARES_GETSOCK_MAXNUM; i++) {
+ ares_process_fd(
+ d->channel,
+ ARES_GETSOCK_READABLE(d->bitmask, i) ? d->socks[i] : ARES_SOCKET_BAD,
+ ARES_GETSOCK_WRITABLE(d->bitmask, i) ? d->socks[i] : ARES_SOCKET_BAD);
+ }
+ }
+ grpc_ares_notify_on_event(exec_ctx, d);
+ grpc_exec_ctx_flush(exec_ctx);
+}
+
+void grpc_ares_gethostbyname(grpc_ares_ev_driver *ev_driver, const char *host,
+ ares_host_callback on_done_cb, void *arg) {
+ ares_gethostbyname(ev_driver->channel, host, AF_UNSPEC, on_done_cb, arg);
+}
+
+ares_channel *grpc_ares_ev_driver_get_channel(grpc_ares_ev_driver *ev_driver) {
+ return &ev_driver->channel;
+}
+
+void grpc_ares_notify_on_event(grpc_exec_ctx *exec_ctx,
+ grpc_ares_ev_driver *ev_driver) {
+ size_t i;
+ fd_pair *new_list = NULL;
+ gpr_log(GPR_ERROR, "\n\n notify_on_event");
+ if (!ev_driver->closing) {
+ ev_driver->bitmask =
+ ares_getsock(ev_driver->channel, ev_driver->socks, ARES_GETSOCK_MAXNUM);
+ grpc_closure_init(&ev_driver->driver_closure, driver_cb, ev_driver);
+ for (i = 0; i < ARES_GETSOCK_MAXNUM; i++) {
+ char *final_name;
+ gpr_asprintf(&final_name, "ares_ev_driver-%" PRIuPTR, i);
+
+ if (ARES_GETSOCK_READABLE(ev_driver->bitmask, i) ||
+ ARES_GETSOCK_WRITABLE(ev_driver->bitmask, i)) {
+ gpr_log(GPR_ERROR, "%d", ev_driver->socks[i]);
+ fd_pair *fdp = get_fd(&ev_driver->fds, ev_driver->socks[i]);
+ if (!fdp) {
+ gpr_log(GPR_ERROR, "new fd");
+ fdp = gpr_malloc(sizeof(fd_pair));
+ fdp->grpc_fd = grpc_fd_create(ev_driver->socks[i], final_name);
+ fdp->fd = ev_driver->socks[i];
+ grpc_pollset_set_add_fd(exec_ctx, ev_driver->pollset_set,
+ fdp->grpc_fd);
+ // new_fd_pair->grpc_fd = fd;
+ // new_fd_pair->next = ev_driver->fds;
+ }
+ fdp->next = new_list;
+ new_list = fdp;
+
+ if (ARES_GETSOCK_READABLE(ev_driver->bitmask, i)) {
+ gpr_log(GPR_ERROR, "READABLE");
+
+ grpc_fd_notify_on_read(exec_ctx, fdp->grpc_fd,
+ &ev_driver->driver_closure);
+ }
+ if (ARES_GETSOCK_WRITABLE(ev_driver->bitmask, i)) {
+ gpr_log(GPR_ERROR, "writable");
+
+ grpc_fd_notify_on_write(exec_ctx, fdp->grpc_fd,
+ &ev_driver->driver_closure);
+ }
+ }
+ gpr_free(final_name);
+ }
+ }
+
+ while (ev_driver->fds != NULL) {
+ fd_pair *cur;
+ // int fd;s
+ cur = ev_driver->fds;
+ ev_driver->fds = ev_driver->fds->next;
+ gpr_log(GPR_ERROR, "fd in ev_driver: %d\n", cur->fd);
+ grpc_pollset_set_del_fd(exec_ctx, ev_driver->pollset_set, cur->grpc_fd);
+ gpr_log(GPR_ERROR, "grpc_pollset_set_del_fd");
+ grpc_fd_shutdown(exec_ctx, cur->grpc_fd);
+ gpr_log(GPR_ERROR, "grpc_fd_shutdown");
+ grpc_fd_orphan(exec_ctx, cur->grpc_fd, NULL, NULL, "come on..");
+ gpr_log(GPR_ERROR, "grpc_fd_orphan");
+ gpr_free(cur);
+ }
+
+ ev_driver->fds = new_list;
+ if (ev_driver->closing) {
+ ares_destroy(ev_driver->channel);
+ gpr_free(ev_driver);
+ }
+
+ gpr_log(GPR_ERROR, "eof notify_on_event");
+}
+
+#endif /* GPR_POSIX_SOCKET */
+#endif /* GRPC_NATIVE_ADDRESS_RESOLVE */
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c b/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
new file mode 100644
index 0000000000..1c03351b75
--- /dev/null
+++ b/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
@@ -0,0 +1,327 @@
+/*
+ *
+ * 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 <grpc/support/port_platform.h>
+#ifndef GRPC_NATIVE_ADDRESS_RESOLVE
+
+#include "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+
+#include <string.h>
+#include <sys/types.h>
+
+#include <ares.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/host_port.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/thd.h>
+#include <grpc/support/time.h>
+#include <grpc/support/useful.h>
+#include "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h"
+#include "src/core/lib/iomgr/executor.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/support/block_annotate.h"
+#include "src/core/lib/support/string.h"
+
+static gpr_once g_basic_init = GPR_ONCE_INIT;
+static gpr_mu g_init_mu;
+
+typedef struct grpc_ares_request {
+ char *name;
+ char *host;
+ char *port;
+ char *default_port;
+ grpc_polling_entity *pollent;
+ grpc_closure *on_done;
+ grpc_resolved_addresses **addrs_out;
+ grpc_closure request_closure;
+ void *arg;
+ int pending_quries;
+ int success;
+ grpc_ares_ev_driver *ev_driver;
+} grpc_ares_request;
+
+static void do_basic_init(void) { gpr_mu_init(&g_init_mu); }
+
+static void destroy_request(grpc_ares_request *request) {
+ grpc_ares_ev_driver_destroy(request->ev_driver);
+
+ // ares_cancel(request->channel);
+ // ares_destroy(request->channel);
+ gpr_free(request->name);
+ gpr_free(request->host);
+ gpr_free(request->port);
+ gpr_free(request->default_port);
+}
+
+static uint16_t strhtons(const char *port) {
+ if (strcmp(port, "http") == 0) {
+ return htons(80);
+ } else if (strcmp(port, "https") == 0) {
+ return htons(443);
+ }
+ return htons((unsigned short)atoi(port));
+}
+
+static void on_done_cb(void *arg, int status, int timeouts,
+ struct hostent *hostent) {
+ gpr_log(GPR_ERROR, "status: %d", status);
+ grpc_ares_request *r = (grpc_ares_request *)arg;
+ grpc_error *err = GRPC_ERROR_NONE;
+ gpr_log(GPR_ERROR, "status: %s", r->name);
+ grpc_resolved_addresses **addresses = r->addrs_out;
+ size_t i;
+ size_t prev_naddr;
+
+ if (status == ARES_SUCCESS) {
+ gpr_log(GPR_ERROR, "status ARES_SUCCESS");
+ GRPC_ERROR_UNREF(err);
+ err = GRPC_ERROR_NONE;
+ r->success = 1;
+ if (*addresses == NULL) {
+ *addresses = gpr_malloc(sizeof(grpc_resolved_addresses));
+ (*addresses)->naddrs = 0;
+ (*addresses)->addrs = NULL;
+ }
+
+ prev_naddr = (*addresses)->naddrs;
+ for (i = 0; hostent->h_addr_list[i] != NULL; i++) {
+ }
+ (*addresses)->naddrs += i;
+
+ gpr_log(GPR_ERROR, "naddr: %" PRIuPTR, (*addresses)->naddrs);
+ (*addresses)->addrs =
+ gpr_realloc((*addresses)->addrs,
+ sizeof(grpc_resolved_address) * (*addresses)->naddrs);
+
+ for (i = prev_naddr; i < (*addresses)->naddrs; i++) {
+ if (hostent->h_addrtype == AF_INET6) {
+ char output[INET6_ADDRSTRLEN];
+ gpr_log(GPR_ERROR, "AF_INET6");
+ struct sockaddr_in6 *addr;
+
+ (*addresses)->addrs[i].len = sizeof(struct sockaddr_in6);
+ addr = (struct sockaddr_in6 *)&(*addresses)->addrs[i].addr;
+
+ memcpy(&addr->sin6_addr, hostent->h_addr_list[i - prev_naddr],
+ sizeof(struct in6_addr));
+ ares_inet_ntop(AF_INET6, &addr->sin6_addr, output, INET6_ADDRSTRLEN);
+ gpr_log(GPR_ERROR, "addr: %s", output);
+ gpr_log(GPR_ERROR, "port: %s", r->port);
+ addr->sin6_family = (sa_family_t)hostent->h_addrtype;
+ addr->sin6_port = strhtons(r->port);
+ } else {
+ char output[INET_ADDRSTRLEN];
+ gpr_log(GPR_ERROR, "AF_INET");
+ struct sockaddr_in *addr;
+
+ (*addresses)->addrs[i].len = sizeof(struct sockaddr_in);
+ addr = (struct sockaddr_in *)&(*addresses)->addrs[i].addr;
+
+ memcpy(&addr->sin_addr, hostent->h_addr_list[i - prev_naddr],
+ sizeof(struct in_addr));
+ ares_inet_ntop(AF_INET, &addr->sin_addr, output, INET_ADDRSTRLEN);
+ gpr_log(GPR_ERROR, "addr: %s", output);
+ gpr_log(GPR_ERROR, "port: %s", r->port);
+ addr->sin_family = (sa_family_t)hostent->h_addrtype;
+ addr->sin_port = strhtons(r->port);
+ }
+ }
+ // ares_destroy(r->channel);
+ } else if (!r->success) {
+ gpr_log(GPR_ERROR, "status not ARES_SUCCESS");
+ // TODO(zyc): add more error detail
+ if (err == GRPC_ERROR_NONE) {
+ err = GRPC_ERROR_CREATE("C-ares query error");
+ }
+ }
+ if (--r->pending_quries == 0) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_exec_ctx_sched(&exec_ctx, r->on_done, err, NULL);
+ grpc_exec_ctx_flush(&exec_ctx);
+ grpc_exec_ctx_finish(&exec_ctx);
+
+ destroy_request(r);
+ gpr_free(r);
+ }
+}
+
+static void request_resolving_address(grpc_exec_ctx *exec_ctx, void *arg,
+ grpc_error *error) {
+ grpc_ares_request *r = (grpc_ares_request *)arg;
+ grpc_ares_ev_driver *ev_driver = r->ev_driver;
+ ares_channel *channel = grpc_ares_ev_driver_get_channel(ev_driver);
+ gpr_log(GPR_ERROR, "before ares_gethostbyname %s", r->host);
+ r->pending_quries = 2;
+ ares_gethostbyname(*channel, r->host, AF_INET, on_done_cb, r);
+ ares_gethostbyname(*channel, r->host, AF_INET6, on_done_cb, r);
+ // grpc_ares_gethostbyname(r->ev_driver, r->host, on_dones_cb, r);
+ gpr_log(GPR_ERROR, "before ares_getsock");
+ grpc_ares_notify_on_event(exec_ctx, ev_driver);
+ gpr_log(GPR_ERROR, "eof resolve_address_impl");
+}
+
+static int try_fake_resolve(const char *name, const char *port,
+ grpc_resolved_addresses **addresses) {
+ struct sockaddr_in sa;
+ struct sockaddr_in6 sa6;
+ memset(&sa, 0, sizeof(struct sockaddr_in));
+ memset(&sa6, 0, sizeof(struct sockaddr_in6));
+ if (0 != ares_inet_pton(AF_INET, name, &(sa.sin_addr))) {
+ gpr_log(GPR_ERROR, "AF_INET");
+ *addresses = gpr_malloc(sizeof(grpc_resolved_addresses));
+ (*addresses)->naddrs = 1;
+ (*addresses)->addrs =
+ gpr_malloc(sizeof(grpc_resolved_address) * (*addresses)->naddrs);
+ (*addresses)->addrs[0].len = sizeof(struct sockaddr_in);
+ sa.sin_family = AF_INET;
+ sa.sin_port = strhtons(port);
+ memcpy(&(*addresses)->addrs[0].addr, &sa, sizeof(struct sockaddr_in));
+ return 1;
+ }
+ if (0 != ares_inet_pton(AF_INET6, name, &(sa6.sin6_addr))) {
+ char output[INET6_ADDRSTRLEN];
+ gpr_log(GPR_ERROR, "AF_INET6");
+ *addresses = gpr_malloc(sizeof(grpc_resolved_addresses));
+ (*addresses)->naddrs = 1;
+ (*addresses)->addrs =
+ gpr_malloc(sizeof(grpc_resolved_address) * (*addresses)->naddrs);
+ (*addresses)->addrs[0].len = sizeof(struct sockaddr_in6);
+ sa6.sin6_family = AF_INET6;
+ sa6.sin6_port = strhtons(port);
+ memcpy(&(*addresses)->addrs[0].addr, &sa6, sizeof(struct sockaddr_in6));
+ ares_inet_ntop(AF_INET6, &sa6.sin6_addr, output, INET6_ADDRSTRLEN);
+ gpr_log(GPR_ERROR, "addr: %s", output);
+ gpr_log(GPR_ERROR, "port: %s", port);
+
+ return 1;
+ }
+ return 0;
+}
+
+void grpc_resolve_address_ares_impl(grpc_exec_ctx *exec_ctx, const char *name,
+ const char *default_port,
+ grpc_pollset_set *pollset_set,
+ grpc_closure *on_done,
+ grpc_resolved_addresses **addrs) {
+ char *host;
+ char *port;
+ grpc_error *err;
+ grpc_ares_request *r = NULL;
+ grpc_ares_ev_driver *ev_driver;
+
+ if ((err = grpc_customized_resolve_address(name, default_port, addrs)) !=
+ GRPC_ERROR_CANCELLED) {
+ grpc_exec_ctx_sched(exec_ctx, on_done, err, NULL);
+ return;
+ }
+
+ if (name[0] == 'u' && name[1] == 'n' && name[2] == 'i' && name[3] == 'x' &&
+ name[4] == ':' && name[5] != 0) {
+ grpc_exec_ctx_sched(exec_ctx, on_done,
+ grpc_resolve_unix_domain_address(name + 5, addrs),
+ NULL);
+ return;
+ }
+
+ /* parse name, splitting it into host and port parts */
+ gpr_split_host_port(name, &host, &port);
+ if (host == NULL) {
+ err = grpc_error_set_str(GRPC_ERROR_CREATE("unparseable host:port"),
+ GRPC_ERROR_STR_TARGET_ADDRESS, name);
+ grpc_exec_ctx_sched(exec_ctx, on_done, err, NULL);
+ goto done;
+ } else if (port == NULL) {
+ if (default_port == NULL) {
+ err = grpc_error_set_str(GRPC_ERROR_CREATE("no port in name"),
+ GRPC_ERROR_STR_TARGET_ADDRESS, name);
+ grpc_exec_ctx_sched(exec_ctx, on_done, err, NULL);
+ goto done;
+ }
+ port = gpr_strdup(default_port);
+ }
+
+ if (try_fake_resolve(host, port, addrs)) {
+ grpc_exec_ctx_sched(exec_ctx, on_done, GRPC_ERROR_NONE, NULL);
+ } else {
+ err = grpc_ares_ev_driver_create(&ev_driver, pollset_set);
+ if (err != GRPC_ERROR_NONE) {
+ grpc_exec_ctx_sched(exec_ctx, on_done, err, NULL);
+ return;
+ }
+ r = gpr_malloc(sizeof(grpc_ares_request));
+ r->ev_driver = ev_driver;
+ r->on_done = on_done;
+ r->addrs_out = addrs;
+ r->name = gpr_strdup(name);
+ r->default_port = gpr_strdup(default_port);
+ r->port = gpr_strdup(port);
+ r->host = gpr_strdup(host);
+ r->pending_quries = 0;
+ r->success = 0;
+ grpc_closure_init(&r->request_closure, request_resolving_address, r);
+ grpc_exec_ctx_sched(exec_ctx, &r->request_closure, GRPC_ERROR_NONE, NULL);
+ }
+
+done:
+ gpr_free(host);
+ gpr_free(port);
+}
+
+void (*grpc_resolve_address_ares)(
+ grpc_exec_ctx *exec_ctx, const char *name, const char *default_port,
+ grpc_pollset_set *pollset_set, grpc_closure *on_done,
+ grpc_resolved_addresses **addrs) = grpc_resolve_address_ares_impl;
+
+grpc_error *grpc_ares_init(void) {
+ gpr_once_init(&g_basic_init, do_basic_init);
+ gpr_mu_lock(&g_init_mu);
+ int status = ares_library_init(ARES_LIB_INIT_ALL);
+ gpr_mu_unlock(&g_init_mu);
+
+ if (status != ARES_SUCCESS) {
+ return GRPC_ERROR_CREATE("ares_library_init failed");
+ }
+ return GRPC_ERROR_NONE;
+}
+
+void grpc_ares_cleanup(void) {
+ gpr_mu_lock(&g_init_mu);
+ ares_library_cleanup();
+ gpr_mu_unlock(&g_init_mu);
+}
+
+#endif /* GRPC_NATIVE_ADDRESS_RESOLVE */
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h b/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h
new file mode 100644
index 0000000000..753eb12b96
--- /dev/null
+++ b/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h
@@ -0,0 +1,61 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
+#define GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
+
+#include <grpc/support/port_platform.h>
+#ifndef GRPC_NATIVE_ADDRESS_RESOLVE
+
+#include <stddef.h>
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/polling_entity.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+
+// typedef struct grpc_ares_request grpc_ares_request;
+
+extern void (*grpc_resolve_address_ares)(grpc_exec_ctx *exec_ctx,
+ const char *addr,
+ const char *default_port,
+ grpc_pollset_set *pollset_set,
+ grpc_closure *on_done,
+ grpc_resolved_addresses **addresses);
+
+grpc_error *grpc_ares_init(void);
+
+void grpc_ares_cleanup(void);
+
+#endif /* GRPC_NATIVE_ADDRESS_RESOLVE */
+
+#endif /* GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H */
diff --git a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c b/src/core/ext/resolver/sockaddr/sockaddr_resolver.c
index 1f7cce2f43..792e2c3c02 100644
--- a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c
+++ b/src/core/ext/resolver/sockaddr/sockaddr_resolver.c
@@ -79,6 +79,7 @@ static void sockaddr_shutdown(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
static void sockaddr_channel_saw_error(grpc_exec_ctx *exec_ctx,
grpc_resolver *r);
static void sockaddr_next(grpc_exec_ctx *exec_ctx, grpc_resolver *r,
+ grpc_polling_entity *pollent,
grpc_client_config **target_config,
grpc_closure *on_complete);
@@ -108,6 +109,7 @@ static void sockaddr_channel_saw_error(grpc_exec_ctx *exec_ctx,
}
static void sockaddr_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
+ grpc_polling_entity *pollent,
grpc_client_config **target_config,
grpc_closure *on_complete) {
sockaddr_resolver *r = (sockaddr_resolver *)resolver;
diff --git a/src/core/lib/iomgr/resolve_address.h b/src/core/lib/iomgr/resolve_address.h
index ddbe375755..7a770662cc 100644
--- a/src/core/lib/iomgr/resolve_address.h
+++ b/src/core/lib/iomgr/resolve_address.h
@@ -66,4 +66,11 @@ extern grpc_error *(*grpc_blocking_resolve_address)(
const char *name, const char *default_port,
grpc_resolved_addresses **addresses);
+/* Returns GRPC_ERROR_CANCELLED by default. If it's overriden and returns
+ error other than GRPC_ERROR_CANCELLED, grpc_resolve_address will use its
+ result. Result must be freed with grpc_resolved_addresses_destroy. */
+extern grpc_error *(*grpc_customized_resolve_address)(
+ const char *name, const char *default_port,
+ grpc_resolved_addresses **addresses);
+
#endif /* GRPC_CORE_LIB_IOMGR_RESOLVE_ADDRESS_H */
diff --git a/src/core/lib/iomgr/resolve_address_posix.c b/src/core/lib/iomgr/resolve_address_posix.c
index 4e9f978584..4012dcc61f 100644
--- a/src/core/lib/iomgr/resolve_address_posix.c
+++ b/src/core/lib/iomgr/resolve_address_posix.c
@@ -149,6 +149,17 @@ grpc_error *(*grpc_blocking_resolve_address)(
const char *name, const char *default_port,
grpc_resolved_addresses **addresses) = blocking_resolve_address_impl;
+static grpc_error *default_customized_resolve_address_impl(
+ const char *name, const char *default_port,
+ grpc_resolved_addresses **addresses) {
+ return GRPC_ERROR_CANCELLED;
+}
+
+grpc_error *(*grpc_customized_resolve_address)(
+ const char *name, const char *default_port,
+ grpc_resolved_addresses **addresses) =
+ default_customized_resolve_address_impl;
+
typedef struct {
char *name;
char *default_port;
@@ -183,7 +194,16 @@ static void resolve_address_impl(grpc_exec_ctx *exec_ctx, const char *name,
const char *default_port,
grpc_closure *on_done,
grpc_resolved_addresses **addrs) {
- request *r = gpr_malloc(sizeof(request));
+ request *r;
+ grpc_error *err;
+
+ if ((err = grpc_customized_resolve_address(name, default_port, addrs)) !=
+ GRPC_ERROR_CANCELLED) {
+ grpc_exec_ctx_sched(exec_ctx, on_done, err, NULL);
+ return;
+ }
+
+ r = gpr_malloc(sizeof(request));
grpc_closure_init(&r->request_closure, do_request_thread, r);
r->name = gpr_strdup(name);
r->default_port = gpr_strdup(default_port);
diff --git a/src/core/lib/iomgr/resolve_address_windows.c b/src/core/lib/iomgr/resolve_address_windows.c
index 2af8af82dc..f7f331aa94 100644
--- a/src/core/lib/iomgr/resolve_address_windows.c
+++ b/src/core/lib/iomgr/resolve_address_windows.c
@@ -143,6 +143,17 @@ grpc_error *(*grpc_blocking_resolve_address)(
const char *name, const char *default_port,
grpc_resolved_addresses **addresses) = blocking_resolve_address_impl;
+static grpc_error *default_customized_resolve_address_impl(
+ const char *name, const char *default_port,
+ grpc_resolved_addresses **addresses) {
+ return GRPC_ERROR_CANCELLED;
+}
+
+grpc_error *(*grpc_customized_resolve_address)(
+ const char *name, const char *default_port,
+ grpc_resolved_addresses **addresses) =
+ default_customized_resolve_address_impl;
+
/* Callback to be passed to grpc_executor to asynch-ify
* grpc_blocking_resolve_address */
static void do_request_thread(grpc_exec_ctx *exec_ctx, void *rp,
@@ -171,7 +182,16 @@ static void resolve_address_impl(grpc_exec_ctx *exec_ctx, const char *name,
const char *default_port,
grpc_closure *on_done,
grpc_resolved_addresses **addresses) {
- request *r = gpr_malloc(sizeof(request));
+ request *r;
+ grpc_error *err;
+
+ if ((err = grpc_customized_resolve_address(name, default_port, addresses)) !=
+ GRPC_ERROR_CANCELLED) {
+ grpc_exec_ctx_sched(exec_ctx, on_done, err, NULL);
+ return;
+ }
+
+ r = gpr_malloc(sizeof(request));
grpc_closure_init(&r->request_closure, do_request_thread, r);
r->name = gpr_strdup(name);
r->default_port = gpr_strdup(default_port);
diff --git a/src/core/plugin_registry/grpc_plugin_registry.c b/src/core/plugin_registry/grpc_plugin_registry.c
index 7a7a9ce477..7ebd312b5a 100644
--- a/src/core/plugin_registry/grpc_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_plugin_registry.c
@@ -43,8 +43,8 @@ extern void grpc_lb_policy_pick_first_init(void);
extern void grpc_lb_policy_pick_first_shutdown(void);
extern void grpc_lb_policy_round_robin_init(void);
extern void grpc_lb_policy_round_robin_shutdown(void);
-extern void grpc_resolver_dns_native_init(void);
-extern void grpc_resolver_dns_native_shutdown(void);
+extern void grpc_resolver_dns_ares_init(void);
+extern void grpc_resolver_dns_ares_shutdown(void);
extern void grpc_resolver_sockaddr_init(void);
extern void grpc_resolver_sockaddr_shutdown(void);
extern void grpc_load_reporting_plugin_init(void);
@@ -63,8 +63,8 @@ void grpc_register_built_in_plugins(void) {
grpc_lb_policy_pick_first_shutdown);
grpc_register_plugin(grpc_lb_policy_round_robin_init,
grpc_lb_policy_round_robin_shutdown);
- grpc_register_plugin(grpc_resolver_dns_native_init,
- grpc_resolver_dns_native_shutdown);
+ grpc_register_plugin(grpc_resolver_dns_ares_init,
+ grpc_resolver_dns_ares_shutdown);
grpc_register_plugin(grpc_resolver_sockaddr_init,
grpc_resolver_sockaddr_shutdown);
grpc_register_plugin(grpc_load_reporting_plugin_init,
diff --git a/src/core/plugin_registry/grpc_unsecure_plugin_registry.c b/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
index ad4ddf0ff4..72dc10e77f 100644
--- a/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
@@ -37,8 +37,8 @@ extern void grpc_chttp2_plugin_init(void);
extern void grpc_chttp2_plugin_shutdown(void);
extern void grpc_client_config_init(void);
extern void grpc_client_config_shutdown(void);
-extern void grpc_resolver_dns_native_init(void);
-extern void grpc_resolver_dns_native_shutdown(void);
+extern void grpc_resolver_dns_ares_init(void);
+extern void grpc_resolver_dns_ares_shutdown(void);
extern void grpc_resolver_sockaddr_init(void);
extern void grpc_resolver_sockaddr_shutdown(void);
extern void grpc_load_reporting_plugin_init(void);
@@ -57,8 +57,8 @@ void grpc_register_built_in_plugins(void) {
grpc_chttp2_plugin_shutdown);
grpc_register_plugin(grpc_client_config_init,
grpc_client_config_shutdown);
- grpc_register_plugin(grpc_resolver_dns_native_init,
- grpc_resolver_dns_native_shutdown);
+ grpc_register_plugin(grpc_resolver_dns_ares_init,
+ grpc_resolver_dns_ares_shutdown);
grpc_register_plugin(grpc_resolver_sockaddr_init,
grpc_resolver_sockaddr_shutdown);
grpc_register_plugin(grpc_load_reporting_plugin_init,
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 7ae76f52c1..c5e57477e0 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -248,7 +248,9 @@ CORE_SOURCE_FILES = [
'third_party/nanopb/pb_encode.c',
'src/core/ext/lb_policy/pick_first/pick_first.c',
'src/core/ext/lb_policy/round_robin/round_robin.c',
- 'src/core/ext/resolver/dns/native/dns_resolver.c',
+ 'src/core/ext/resolver/dns/c_ares/dns_resolver.c',
+ 'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
+ 'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
'src/core/ext/load_reporting/load_reporting.c',
'src/core/ext/load_reporting/load_reporting_filter.c',
@@ -577,4 +579,53 @@ CORE_SOURCE_FILES = [
'third_party/zlib/trees.c',
'third_party/zlib/uncompr.c',
'third_party/zlib/zutil.c',
+ 'third_party/c-ares/ares__close_sockets.c',
+ 'third_party/c-ares/ares__get_hostent.c',
+ 'third_party/c-ares/ares__read_line.c',
+ 'third_party/c-ares/ares__timeval.c',
+ 'third_party/c-ares/ares_cancel.c',
+ 'third_party/c-ares/ares_create_query.c',
+ 'third_party/c-ares/ares_data.c',
+ 'third_party/c-ares/ares_destroy.c',
+ 'third_party/c-ares/ares_expand_name.c',
+ 'third_party/c-ares/ares_expand_string.c',
+ 'third_party/c-ares/ares_fds.c',
+ 'third_party/c-ares/ares_free_hostent.c',
+ 'third_party/c-ares/ares_free_string.c',
+ 'third_party/c-ares/ares_getenv.c',
+ 'third_party/c-ares/ares_gethostbyaddr.c',
+ 'third_party/c-ares/ares_gethostbyname.c',
+ 'third_party/c-ares/ares_getnameinfo.c',
+ 'third_party/c-ares/ares_getopt.c',
+ 'third_party/c-ares/ares_getsock.c',
+ 'third_party/c-ares/ares_init.c',
+ 'third_party/c-ares/ares_library_init.c',
+ 'third_party/c-ares/ares_llist.c',
+ 'third_party/c-ares/ares_mkquery.c',
+ 'third_party/c-ares/ares_nowarn.c',
+ 'third_party/c-ares/ares_options.c',
+ 'third_party/c-ares/ares_parse_a_reply.c',
+ 'third_party/c-ares/ares_parse_aaaa_reply.c',
+ 'third_party/c-ares/ares_parse_mx_reply.c',
+ 'third_party/c-ares/ares_parse_naptr_reply.c',
+ 'third_party/c-ares/ares_parse_ns_reply.c',
+ 'third_party/c-ares/ares_parse_ptr_reply.c',
+ 'third_party/c-ares/ares_parse_soa_reply.c',
+ 'third_party/c-ares/ares_parse_srv_reply.c',
+ 'third_party/c-ares/ares_parse_txt_reply.c',
+ 'third_party/c-ares/ares_platform.c',
+ 'third_party/c-ares/ares_process.c',
+ 'third_party/c-ares/ares_query.c',
+ 'third_party/c-ares/ares_search.c',
+ 'third_party/c-ares/ares_send.c',
+ 'third_party/c-ares/ares_strcasecmp.c',
+ 'third_party/c-ares/ares_strdup.c',
+ 'third_party/c-ares/ares_strerror.c',
+ 'third_party/c-ares/ares_timeout.c',
+ 'third_party/c-ares/ares_version.c',
+ 'third_party/c-ares/ares_writev.c',
+ 'third_party/c-ares/bitncmp.c',
+ 'third_party/c-ares/inet_net_pton.c',
+ 'third_party/c-ares/inet_ntop.c',
+ 'third_party/c-ares/windows_port.c',
]
diff --git a/src/ruby/ext/grpc/extconf.rb b/src/ruby/ext/grpc/extconf.rb
index 6d65db8306..4be7e58c96 100644
--- a/src/ruby/ext/grpc/extconf.rb
+++ b/src/ruby/ext/grpc/extconf.rb
@@ -70,6 +70,7 @@ ENV['AR'] = 'libtool -o' if RUBY_PLATFORM =~ /darwin/
ENV['EMBED_OPENSSL'] = 'true'
ENV['EMBED_ZLIB'] = 'true'
+ENV['EMBED_CARES'] = 'true'
ENV['ARCH_FLAGS'] = RbConfig::CONFIG['ARCH_FLAG']
ENV['ARCH_FLAGS'] = '-arch i386 -arch x86_64' if RUBY_PLATFORM =~ /darwin/
ENV['CFLAGS'] = '-DGPR_BACKWARDS_COMPATIBILITY_MODE'