The Tor Browser: nsprpub/pr/tests/acceptreademu.c@44a2da4a2ab2

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 /*

     7  * This test is the same as acceptread.c except that it uses the

     8  * emulated acceptread method instead of the regular acceptread.

     9  */

    11 #include <prio.h>

    12 #include <prprf.h>

    13 #include <prinit.h>

    14 #include <prnetdb.h>

    15 #include <prinrval.h>

    16 #include <prthread.h>

    17 #include <pprio.h>

    19 #include <plerror.h>

    21 #include <stdlib.h>

    23 #define DEFAULT_PORT 12273

    24 #define GET "GET / HTTP/1.0\n\n"

    25 static PRFileDesc *std_out, *err_out;

    26 static PRIntervalTime write_dally, accept_timeout;

    27 static PRDescIdentity emu_layer_ident;

    28 static PRIOMethods emu_layer_methods;

    30 /* the acceptread method in emu_layer_methods */

    31 static PRInt32 PR_CALLBACK emu_AcceptRead(PRFileDesc *sd, PRFileDesc **nd,

    32     PRNetAddr **raddr, void *buf, PRInt32 amount, PRIntervalTime timeout)

    33 {

    34     return PR_EmulateAcceptRead(sd, nd, raddr, buf, amount, timeout);

    35 }

    37 static PRStatus PrintAddress(const PRNetAddr* address)

    38 {

    39     char buffer[100];

    40     PRStatus rv = PR_NetAddrToString(address, buffer, sizeof(buffer));

    41     if (PR_FAILURE == rv) PL_FPrintError(err_out, "PR_NetAddrToString");

    42     else PR_fprintf(

    43         std_out, "Accepted connection from (0x%p)%s:%d\n",

    44         address, buffer, address->inet.port);

    45     return rv;

    46 }  /* PrintAddress */

    48 static void ConnectingThread(void *arg)

    49 {

    50     PRInt32 nbytes;

    51 #ifdef SYMBIAN

    52     char buf[256];

    53 #else

    54     char buf[1024];

    55 #endif

    56     PRFileDesc *sock;

    57     PRNetAddr peer_addr, *addr;

    59     addr = (PRNetAddr*)arg;

    61     sock = PR_NewTCPSocket();

    62     if (sock == NULL)

    63     {

    64         PL_FPrintError(err_out, "PR_NewTCPSocket (client) failed");

    65         PR_ProcessExit(1);

    66     }

    68     if (PR_Connect(sock, addr, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE)

    69     {

    70         PL_FPrintError(err_out, "PR_Connect (client) failed");

    71         PR_ProcessExit(1);

    72     }

    73     if (PR_GetPeerName(sock, &peer_addr) == PR_FAILURE)

    74     {

    75         PL_FPrintError(err_out, "PR_GetPeerName (client) failed");

    76         PR_ProcessExit(1);

    77     }

    79     /*

    80     ** Then wait between the connection coming up and sending the expected

    81     ** data. At some point in time, the server should fail due to a timeou

    82     ** on the AcceptRead() operation, which according to the document is

    83     ** only due to the read() portion.

    84     */

    85     PR_Sleep(write_dally);

    87     nbytes = PR_Send(sock, GET, sizeof(GET), 0, PR_INTERVAL_NO_TIMEOUT);

    88     if (nbytes == -1) PL_FPrintError(err_out, "PR_Send (client) failed");

    90     nbytes = PR_Recv(sock, buf, sizeof(buf), 0, PR_INTERVAL_NO_TIMEOUT);

    91     if (nbytes == -1) PL_FPrintError(err_out, "PR_Recv (client) failed");

    92     else

    93     {

    94         PR_fprintf(std_out, "PR_Recv (client) succeeded: %d bytes\n", nbytes);

    95         buf[sizeof(buf) - 1] = '\0';

    96         PR_fprintf(std_out, "%s\n", buf);

    97     }

    99     if (PR_FAILURE == PR_Shutdown(sock, PR_SHUTDOWN_BOTH))

   100         PL_FPrintError(err_out, "PR_Shutdown (client) failed");

   102     if (PR_FAILURE == PR_Close(sock))

   103         PL_FPrintError(err_out, "PR_Close (client) failed");

   105     return;

   106 }  /* ConnectingThread */

   108 #define BUF_SIZE 117

   109 static void AcceptingThread(void *arg)

   110 {

   111     PRStatus rv;

   112     PRInt32 bytes;

   113     PRSize buf_size = BUF_SIZE;

   114     PRUint8 buf[BUF_SIZE + (2 * sizeof(PRNetAddr)) + 32];

   115     PRNetAddr *accept_addr, *listen_addr = (PRNetAddr*)arg;

   116     PRFileDesc *accept_sock, *listen_sock = PR_NewTCPSocket();

   117     PRFileDesc *layer;

   118     PRSocketOptionData sock_opt;

   120     if (NULL == listen_sock)

   121     {

   122         PL_FPrintError(err_out, "PR_NewTCPSocket (server) failed");

   123         PR_ProcessExit(1);

   124     }

   125     layer = PR_CreateIOLayerStub(emu_layer_ident, &emu_layer_methods);

   126     if (NULL == layer)

   127     {

   128         PL_FPrintError(err_out, "PR_CreateIOLayerStub (server) failed");

   129         PR_ProcessExit(1);

   130     }

   131     if (PR_PushIOLayer(listen_sock, PR_TOP_IO_LAYER, layer) == PR_FAILURE)

   132     {

   133         PL_FPrintError(err_out, "PR_PushIOLayer (server) failed");

   134         PR_ProcessExit(1);

   135     }

   136     sock_opt.option = PR_SockOpt_Reuseaddr;

   137     sock_opt.value.reuse_addr = PR_TRUE;

   138     rv = PR_SetSocketOption(listen_sock, &sock_opt);

   139     if (PR_FAILURE == rv)

   140     {

   141         PL_FPrintError(err_out, "PR_SetSocketOption (server) failed");

   142         PR_ProcessExit(1);

   143     }

   144     rv = PR_Bind(listen_sock, listen_addr);

   145     if (PR_FAILURE == rv)

   146     {

   147         PL_FPrintError(err_out, "PR_Bind (server) failed");

   148         PR_ProcessExit(1);

   149     }

   150     rv = PR_Listen(listen_sock, 10);

   151     if (PR_FAILURE == rv)

   152     {

   153         PL_FPrintError(err_out, "PR_Listen (server) failed");

   154         PR_ProcessExit(1);

   155     }

   156     bytes = PR_AcceptRead(

   157         listen_sock, &accept_sock, &accept_addr, buf, buf_size, accept_timeout);

   159     if (-1 == bytes) PL_FPrintError(err_out, "PR_AcceptRead (server) failed");

   160     else

   161     {

   162         PrintAddress(accept_addr);

   163         PR_fprintf(

   164             std_out, "(Server) read [0x%p..0x%p) %s\n",

   165             buf, &buf[BUF_SIZE], buf);

   166         bytes = PR_Write(accept_sock, buf, bytes);

   167         rv = PR_Shutdown(accept_sock, PR_SHUTDOWN_BOTH);

   168         if (PR_FAILURE == rv)

   169             PL_FPrintError(err_out, "PR_Shutdown (server) failed");

   170     }

   172     if (-1 != bytes)

   173     {

   174         rv = PR_Close(accept_sock);

   175         if (PR_FAILURE == rv)

   176             PL_FPrintError(err_out, "PR_Close (server) failed");

   177     }

   179     rv = PR_Close(listen_sock);

   180     if (PR_FAILURE == rv)

   181         PL_FPrintError(err_out, "PR_Close (server) failed");

   182 }  /* AcceptingThread */

   184 int main(int argc, char **argv)

   185 {

   186     PRHostEnt he;

   187     PRStatus status;

   188     PRIntn next_index;

   189     PRUint16 port_number;

   190     char netdb_buf[PR_NETDB_BUF_SIZE];

   191     PRNetAddr client_addr, server_addr;

   192     PRThread *client_thread, *server_thread;

   193     PRIntervalTime delta = PR_MillisecondsToInterval(500);

   195     err_out = PR_STDERR;

   196     std_out = PR_STDOUT;

   197     accept_timeout = PR_SecondsToInterval(2);

   198     emu_layer_ident = PR_GetUniqueIdentity("Emulated AcceptRead");

   199     emu_layer_methods = *PR_GetDefaultIOMethods();

   200     emu_layer_methods.acceptread = emu_AcceptRead;

   202     if (argc != 2 && argc != 3) port_number = DEFAULT_PORT;

   203     else port_number = (PRUint16)atoi(argv[(argc == 2) ? 1 : 2]);

   205     status = PR_InitializeNetAddr(PR_IpAddrAny, port_number, &server_addr);

   206     if (PR_SUCCESS != status)

   207     {

   208         PL_FPrintError(err_out, "PR_InitializeNetAddr failed");

   209         PR_ProcessExit(1);

   210     }

   211     if (argc < 3)

   212     {

   213         status = PR_InitializeNetAddr(

   214             PR_IpAddrLoopback, port_number, &client_addr);

   215         if (PR_SUCCESS != status)

   216         {

   217             PL_FPrintError(err_out, "PR_InitializeNetAddr failed");

   218             PR_ProcessExit(1);

   219         }

   220     }

   221     else

   222     {

   223         status = PR_GetHostByName(

   224             argv[1], netdb_buf, sizeof(netdb_buf), &he);

   225         if (status == PR_FAILURE)

   226         {

   227             PL_FPrintError(err_out, "PR_GetHostByName failed");

   228             PR_ProcessExit(1);

   229         }

   230         next_index = PR_EnumerateHostEnt(0, &he, port_number, &client_addr);

   231         if (next_index == -1)

   232         {

   233             PL_FPrintError(err_out, "PR_EnumerateHostEnt failed");

   234             PR_ProcessExit(1);

   235         }

   236     }

   238     for (

   239         write_dally = 0;

   240         write_dally < accept_timeout + (2 * delta);

   241         write_dally += delta)

   242     {

   243         PR_fprintf(

   244             std_out, "Testing w/ write_dally = %d msec\n",

   245             PR_IntervalToMilliseconds(write_dally));

   246         server_thread = PR_CreateThread(

   247             PR_USER_THREAD, AcceptingThread, &server_addr,

   248             PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);

   249         if (server_thread == NULL)

   250         {

   251             PL_FPrintError(err_out, "PR_CreateThread (server) failed");

   252             PR_ProcessExit(1);

   253         }

   255         PR_Sleep(delta);  /* let the server pot thicken */

   257         client_thread = PR_CreateThread(

   258             PR_USER_THREAD, ConnectingThread, &client_addr,

   259             PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);

   260         if (client_thread == NULL)

   261         {

   262             PL_FPrintError(err_out, "PR_CreateThread (client) failed");

   263             PR_ProcessExit(1);

   264         }

   266         if (PR_JoinThread(client_thread) == PR_FAILURE)

   267             PL_FPrintError(err_out, "PR_JoinThread (client) failed");

   269         if (PR_JoinThread(server_thread) == PR_FAILURE)

   270             PL_FPrintError(err_out, "PR_JoinThread (server) failed");

   271     }

   273     return 0;

   274 }

The Tor Browser / file revision

nsprpub/pr/tests/acceptreademu.c@44a2da4a2ab2

nsprpub/pr/tests/acceptreademu.c