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-rw-r--r--ipv6connect/LICENSE339
-rw-r--r--ipv6connect/Makefile13
-rw-r--r--ipv6connect/ipv6connect.c474
3 files changed, 826 insertions, 0 deletions
diff --git a/ipv6connect/LICENSE b/ipv6connect/LICENSE
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/ipv6connect/LICENSE
@@ -0,0 +1,339 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
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+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
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+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
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+language. (Hereinafter, translation is included without limitation in
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+Activities other than copying, distribution and modification are not
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+running the Program is not restricted, and the output from the Program
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+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
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+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
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+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
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+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
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+ 2. You may modify your copy or copies of the Program or any portion
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+
+ a) You must cause the modified files to carry prominent notices
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+ b) You must cause any work that you distribute or publish, that in
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+ c) If the modified program normally reads commands interactively
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+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
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+distribute the same sections as part of a whole which is a work based
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+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
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+infringement or for any other reason (not limited to patent issues),
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+
+This section is intended to make thoroughly clear what is believed to
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+
+ 8. If the distribution and/or use of the Program is restricted in
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+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
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+countries not thus excluded. In such case, this License incorporates
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+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
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+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
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+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
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+Foundation.
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+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
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+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
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+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/ipv6connect/Makefile b/ipv6connect/Makefile
new file mode 100644
index 0000000..2a0445e
--- /dev/null
+++ b/ipv6connect/Makefile
@@ -0,0 +1,13 @@
+CFLAGS = -O2 -Wall
+TARGET = ipv6connect
+
+
+all: $(TARGET)
+
+
+$(TARGET): ipv6connect.c
+ $(CC) $(CFLAGS) $^ -o $@ -lpthread
+
+
+clean:
+ $(RM) $(TARGET)
diff --git a/ipv6connect/ipv6connect.c b/ipv6connect/ipv6connect.c
new file mode 100644
index 0000000..34bd2d8
--- /dev/null
+++ b/ipv6connect/ipv6connect.c
@@ -0,0 +1,474 @@
+// Copyright 2008 Google Inc. Released under the GPL v2.
+//
+// This test performs numerous connects (with auto-binding), to a server
+// listening on all local addresses using an IPv6 socket, by connecting to
+// 127.0.0.1, ::ffff:127.0.0.1 and ::1.
+//
+// The code is really three tests:
+//
+// - RunWithOneServer, using CreateServer and ConnectAndAccept,
+// uses one server socket and repeatedly connects to it.
+//
+// - RunWithOneShotServers, using CreateServerConnectAndAccept,
+// creates servers, connects to them and then discards them.
+//
+// - RunMultiThreaded, using ThreadedCreateServerConnectAndAccept,
+// ThreadedStartServer and ThreadedGetServerFD, is equivalent to
+// RunWithOneShotServers but uses multiple threads, one for the
+// server and one for the client.
+//
+// Each of these tests triggers error conditions on different kernels
+// to a different extent.
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+
+// Which loopback address to connect to.
+enum LoopbackAddr { V4_LOOPBACK, V6_LOOPBACK, V6_MAPPED_V4_LOOPBACK };
+
+// Connect to a listening TCP socket, and accept the connection.
+static void ConnectAndAccept(enum LoopbackAddr addr, int server_fd, int port) {
+ struct sockaddr_in6 sa;
+ socklen_t addr_len;
+ int client_fd, accepted_fd;
+
+ if (addr == V6_LOOPBACK || addr == V6_MAPPED_V4_LOOPBACK) {
+ char buf[INET6_ADDRSTRLEN];
+
+ memset(&sa, 0, sizeof(sa));
+ if ((client_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+ if (addr == V6_LOOPBACK) {
+ inet_pton(AF_INET6, "::1", &sa.sin6_addr);
+ } else if (addr == V6_MAPPED_V4_LOOPBACK) {
+ inet_pton(AF_INET6, "::ffff:127.0.0.1", &sa.sin6_addr);
+ }
+ if (!inet_ntop(AF_INET6, &sa.sin6_addr, buf, INET6_ADDRSTRLEN)) {
+ perror("inet_ntop");
+ exit(1);
+ }
+ addr_len = sizeof(sa);
+ sa.sin6_family = AF_INET6;
+ sa.sin6_port = port;
+ if (connect(client_fd, (struct sockaddr*)(&sa),
+ sizeof(struct sockaddr_in6)) == -1) {
+ perror("connect");
+ exit(1);
+ }
+ write(2, (addr == V6_LOOPBACK) ? "+" : "-", 1);
+ } else {
+ struct sockaddr_in sa4;
+
+ if ((client_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+ memset(&sa4, 0, sizeof(sa4));
+ sa4.sin_family = AF_INET;
+ inet_pton(AF_INET, "127.0.0.1", &sa4.sin_addr);
+ sa4.sin_port = port;
+ if (connect(client_fd, (struct sockaddr*)(&sa4),
+ sizeof(struct sockaddr_in)) == -1) {
+ perror("connect");
+ exit(1);
+ }
+ write(2, ".", 1);
+ }
+ addr_len = sizeof(sa);
+ if ((accepted_fd = accept(server_fd,
+ (struct sockaddr*)(&sa), &addr_len)) == -1) {
+ perror("accept");
+ exit(1);
+ }
+ close(client_fd);
+ close(accepted_fd);
+}
+
+// Create a listening TCP socket.
+static void CreateServer(int* server_fd, int* port) {
+ struct sockaddr_in6 sa;
+ socklen_t addr_len;
+
+ memset(&sa, 0, sizeof(sa));
+ if ((*server_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+ addr_len = sizeof(sa);
+ sa.sin6_family = AF_INET6;
+ sa.sin6_addr = in6addr_any;
+ sa.sin6_port = 0;
+ if (bind(*server_fd, (struct sockaddr*)(&sa), sizeof(sa)) == -1) {
+ perror("bind");
+ exit(1);
+ }
+ if (getsockname(*server_fd, (struct sockaddr*)(&sa), &addr_len) == -1) {
+ perror("getsockname");
+ exit(1);
+ }
+ if (listen(*server_fd, 10) == -1) {
+ perror("listen");
+ exit(1);
+ }
+ *port = sa.sin6_port;
+}
+
+// Create a socket, connect to it, accept, and discard both.
+static void CreateServerConnectAndAccept(enum LoopbackAddr addr) {
+ struct sockaddr_in6 sa;
+ socklen_t addr_len;
+ int server_fd, client_fd, accepted_fd, connect_rc;
+
+ if ((server_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+ addr_len = sizeof(sa);
+ memset(&sa, 0, sizeof(sa));
+ sa.sin6_family = AF_INET6;
+ sa.sin6_addr = in6addr_any;
+ sa.sin6_port = 0;
+ if (bind(server_fd, (struct sockaddr*)(&sa), sizeof(sa)) == -1) {
+ perror("bind");
+ exit(1);
+ }
+ if (getsockname(server_fd, (struct sockaddr*)(&sa), &addr_len) == -1) {
+ perror("getsockname");
+ exit(1);
+ }
+ if (listen(server_fd, 10) == -1) {
+ perror("listen");
+ exit(1);
+ }
+ if (addr == V6_LOOPBACK || addr == V6_MAPPED_V4_LOOPBACK) {
+ char buf[INET6_ADDRSTRLEN];
+
+ if ((client_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+ if (addr == V6_LOOPBACK) {
+ inet_pton(AF_INET6, "::1", &sa.sin6_addr);
+ } else if (addr == V6_MAPPED_V4_LOOPBACK) {
+ inet_pton(AF_INET6, "::ffff:127.0.0.1", &sa.sin6_addr);
+ }
+ if (!inet_ntop(AF_INET6, &sa.sin6_addr, buf, INET6_ADDRSTRLEN)) {
+ perror("inet_ntop");
+ exit(1);
+ }
+ connect_rc = connect(client_fd, (struct sockaddr*)(&sa),
+ sizeof(struct sockaddr_in6));
+ write(2, (addr == V6_MAPPED_V4_LOOPBACK) ? "-" : "+", 1);
+ } else {
+ struct sockaddr_in sa4;
+
+ if ((client_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+ memset(&sa4, 0, sizeof(sa4));
+ sa4.sin_family = AF_INET;
+ inet_pton(AF_INET, "127.0.0.1", &sa4.sin_addr);
+ sa4.sin_port = sa.sin6_port;
+ connect_rc = connect(client_fd, (struct sockaddr*)(&sa4),
+ sizeof(struct sockaddr_in));
+ write(2, ".", 1);
+ }
+ if (connect_rc == -1) {
+ perror("connect");
+ exit(1);
+ }
+ addr_len = sizeof(sa);
+ if ((accepted_fd = accept(server_fd,
+ (struct sockaddr*)(&sa), &addr_len)) == -1) {
+ perror("accept");
+ exit(1);
+ }
+ close(accepted_fd);
+ close(client_fd);
+ close(server_fd);
+}
+
+// Globals for threaded version.
+static volatile int threaded_listening = 0;
+static int threaded_server_fd;
+static pthread_mutex_t threaded_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t threaded_cond = PTHREAD_COND_INITIALIZER;
+
+// Block until listening, then return server address.
+static int ThreadedGetServerFD() {
+ pthread_mutex_lock(&threaded_mutex);
+ while (!threaded_listening) {
+ pthread_cond_wait(&threaded_cond, &threaded_mutex);
+ }
+ pthread_mutex_unlock(&threaded_mutex);
+ return threaded_server_fd;
+}
+
+// Start a server which accepts one connection.
+static void* ThreadedStartServer(void* unused) {
+ struct sockaddr_in6 sa;
+ socklen_t addr_len = sizeof(sa);
+ int accept_fd;
+
+ if ((threaded_server_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+
+ // Any IP, unused port.
+ memset(&sa, 0, sizeof(sa));
+ sa.sin6_family = AF_INET6;
+ sa.sin6_addr = in6addr_any;
+ sa.sin6_port = 0;
+
+ // Bind.
+ if (bind(threaded_server_fd, (struct sockaddr*)(&sa), sizeof(sa)) == -1) {
+ perror("bind");
+ exit(1);
+ }
+
+ // Listen.
+ if (listen(threaded_server_fd, 10) == -1) {
+ perror("listen");
+ exit(1);
+ }
+ pthread_mutex_lock(&threaded_mutex);
+ threaded_listening = 1;
+ pthread_cond_signal(&threaded_cond);
+ pthread_mutex_unlock(&threaded_mutex);
+
+ // Try to accept.
+ if ((accept_fd = accept(threaded_server_fd, (struct sockaddr*)(&sa),
+ &addr_len)) == -1) {
+ perror("accept");
+ exit(1);
+ }
+
+ // All done.
+ close(threaded_server_fd);
+ close(accept_fd);
+ threaded_listening = 0;
+ return NULL;
+}
+
+// Start a server thread, then connect to it via TCP.
+static void ThreadedCreateServerConnectAndAccept(enum LoopbackAddr addr) {
+ pthread_t pthread;
+ int server_fd, client_fd;
+ struct sockaddr_in6 sa;
+ socklen_t addr_len = sizeof(sa);
+
+ pthread_create(&pthread, NULL, ThreadedStartServer, NULL);
+
+ // Get the server address information -- this call will block until
+ // the server is listening.
+ server_fd = ThreadedGetServerFD();
+ memset(&sa, 0, sizeof(sa));
+ if (getsockname(server_fd, (struct sockaddr*)(&sa), &addr_len) == -1) {
+ perror("getsockname");
+ exit(1);
+ }
+
+ if (addr == V6_LOOPBACK || addr == V6_MAPPED_V4_LOOPBACK) {
+ char buf[INET6_ADDRSTRLEN];
+
+ if ((client_fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+
+ // Check that we are listening on ::
+ if (!inet_ntop(AF_INET6, &sa.sin6_addr, buf, INET6_ADDRSTRLEN)) {
+ fprintf(stderr, "inet_ntop failed\n");
+ exit(1);
+ }
+ if (strlen(buf) != 2) {
+ fprintf(stderr, "Expected to listen on ::, instead listening on %s", buf);
+ exit(1);
+ }
+
+ if (addr == V6_LOOPBACK) {
+ inet_pton(AF_INET6, "::1", &sa.sin6_addr);
+ } else if (addr == V6_MAPPED_V4_LOOPBACK) {
+ inet_pton(AF_INET6, "::ffff:127.0.0.1", &sa.sin6_addr);
+ }
+ if (connect(client_fd, (struct sockaddr*)(&sa),
+ sizeof(struct sockaddr_in6)) == -1) {
+ perror("connect");
+ exit(1);
+ }
+ } else {
+ struct sockaddr_in sa4;
+
+ if ((client_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
+ perror("socket");
+ exit(1);
+ }
+
+ memset(&sa4, 0, sizeof(sa4));
+ sa4.sin_family = AF_INET;
+ inet_aton("127.0.0.1", &sa4.sin_addr);
+ sa4.sin_port = sa.sin6_port;
+
+ if (connect(client_fd, (struct sockaddr*)(&sa4),
+ sizeof(struct sockaddr_in)) == -1) {
+ perror("connect");
+ exit(1);
+ }
+ }
+
+ // Update progress.
+ switch (addr) {
+ case V4_LOOPBACK:
+ write(2, ".", 1);
+ break;
+ case V6_MAPPED_V4_LOOPBACK:
+ write(2, "-", 1);
+ break;
+ case V6_LOOPBACK:
+ write(2, "+", 1);
+ break;
+ }
+
+ // Close our connection and wait for the server thread to shutdown.
+ close(client_fd);
+ pthread_join(pthread, NULL);
+}
+
+static void RunWithOneServer(int outer, int inner) {
+ int i, j, server_fd, port;
+ fprintf(stderr, "Starting test with one server port for all connects\n");
+ for (i = 0; i < outer; ++i) {
+ CreateServer(&server_fd, &port);
+ for (j = 0; j < inner; ++j) {
+ ConnectAndAccept(V4_LOOPBACK, server_fd, port);
+ }
+ write(2, "\n", 1);
+ for (j = 0; j < inner; ++j) {
+ ConnectAndAccept(V6_MAPPED_V4_LOOPBACK, server_fd, port);
+ }
+ write(2, "\n", 1);
+ for (j = 0; j < inner; ++j) {
+ ConnectAndAccept(V6_LOOPBACK, server_fd, port);
+ }
+ write(2, "\n", 1);
+ close(server_fd);
+ }
+}
+
+static void RunWithOneShotServers(int outer, int inner) {
+ int i, j;
+ fprintf(stderr, "Starting test with one server port per connect\n");
+ for (i = 0; i < outer; ++i) {
+ for (j = 0; j < inner; ++j) {
+ CreateServerConnectAndAccept(V4_LOOPBACK);
+ }
+ write(2, "\n", 1);
+ for (j = 0; j < inner; ++j) {
+ CreateServerConnectAndAccept(V6_MAPPED_V4_LOOPBACK);
+ }
+ write(2, "\n", 1);
+ for (j = 0; j < inner; ++j) {
+ CreateServerConnectAndAccept(V6_LOOPBACK);
+ }
+ write(2, "\n", 1);
+ }
+}
+
+static void RunMultiThreaded(int outer, int inner) {
+ int i, j;
+ fprintf(stderr, "Starting multi-threaded test\n");
+ for (i = 0; i < outer; ++i) {
+ for (j = 0; j < inner; ++j) {
+ ThreadedCreateServerConnectAndAccept(V4_LOOPBACK);
+ }
+ write(2, "\n", 1);
+ for (j = 0; j < inner; ++j) {
+ ThreadedCreateServerConnectAndAccept(V6_MAPPED_V4_LOOPBACK);
+ }
+ write(2, "\n", 1);
+ for (j = 0; j < inner; ++j) {
+ ThreadedCreateServerConnectAndAccept(V6_LOOPBACK);
+ }
+ write(2, "\n", 1);
+ }
+}
+
+static const char* usage =
+ "Usage: %s [types [outer [inner]]]\n"
+ "Arguments:\n"
+ "\ttypes: String consisting of [OMT], for the test types to run\n"
+ "\t O: One server, multiple connects\n"
+ "\t M: One server per connect (multiple server ports)\n"
+ "\t T: Multi-threaded version of \'M\'\n"
+ "\touter: Number of passes through the outer loops, default 10\n"
+ "\tinner: Number of passes through the inner loops, default 75\n";
+
+static void Usage(char *argv0) {
+ fprintf(stderr, usage, argv0);
+ exit(2);
+}
+
+int main(int argc, char** argv) {
+ char *types = "OMT";
+ int i, inner = 75, outer = 10, timediff;
+ struct timeval tv0, tv1;
+
+ // Parse the options.
+ if (argc == 4) {
+ inner = atoi(argv[3]);
+ if (inner <= 0) {
+ Usage(argv[0]);
+ }
+ argc--;
+ }
+ if (argc == 3) {
+ outer = atoi(argv[2]);
+ if (outer <= 0) {
+ Usage(argv[0]);
+ }
+ argc--;
+ }
+ if (argc == 2) {
+ types = argv[1];
+ if (strspn(types, "OMT") != strlen(types)) {
+ Usage(argv[0]);
+ }
+ argc--;
+ }
+ if (argc != 1) {
+ Usage(argv[0]);
+ }
+
+ // Run the tests.
+ gettimeofday(&tv0, NULL);
+ for (i = 0; i < strlen(types); ++i) {
+ switch (types[i]) {
+ case 'O':
+ RunWithOneServer(outer, inner);
+ break;
+ case 'M':
+ RunWithOneShotServers(outer, inner);
+ break;
+ case 'T':
+ RunMultiThreaded(outer, inner);
+ break;
+ }
+ }
+ gettimeofday(&tv1, NULL);
+ timediff = (tv1.tv_sec - tv0.tv_sec) * 1000000 + tv1.tv_usec - tv0.tv_usec;
+ fprintf(stderr, "Total time = %d.%06ds\n", timediff / 1000000,
+ timediff % 1000000);
+ exit(0);
+}