exchange

Base system with REST service to issue digital coins, run by the payment service provider
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testing_api_cmd_exec_router.c (4243B)

      1 /*
      2   This file is part of TALER
      3   Copyright (C) 2022 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or modify
      6   it under the terms of the GNU General Public License as
      7   published by the Free Software Foundation; either version 3,
      8   or (at your option) any later version.
      9 
     10   TALER is distributed in the hope that it will be useful,
     11   but WITHOUT ANY WARRANTY; without even the implied warranty of
     12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13   GNU General Public License for more details.
     14 
     15   You should have received a copy of the GNU General Public
     16   License along with TALER; see the file COPYING.  If not, see
     17   <http://www.gnu.org/licenses/>
     18 */
     19 /**
     20  * @file testing/testing_api_cmd_exec_router.c
     21  * @brief run the taler-exchange-router command
     22  * @author Christian Grothoff
     23  * @author Marcello Stanisci
     24  */
     25 #include "taler/platform.h"
     26 #include "taler/taler_json_lib.h"
     27 #include <gnunet/gnunet_curl_lib.h>
     28 #include "taler/taler_signatures.h"
     29 #include "taler/taler_testing_lib.h"
     30 
     31 
     32 /**
     33  * State for a "router" CMD.
     34  */
     35 struct RouterState
     36 {
     37 
     38   /**
     39    * Process for the routerer.
     40    */
     41   struct GNUNET_Process *router_proc;
     42 
     43   /**
     44    * Configuration file used by the routerer.
     45    */
     46   const char *config_filename;
     47 };
     48 
     49 
     50 /**
     51  * Run the command; use the `taler-exchange-router` program.
     52  *
     53  * @param cls closure.
     54  * @param cmd command currently being executed.
     55  * @param is interpreter state.
     56  */
     57 static void
     58 router_run (void *cls,
     59             const struct TALER_TESTING_Command *cmd,
     60             struct TALER_TESTING_Interpreter *is)
     61 {
     62   struct RouterState *ws = cls;
     63 
     64   (void) cmd;
     65   ws->router_proc = GNUNET_process_create (GNUNET_OS_INHERIT_STD_ERR);
     66   if (GNUNET_OK !=
     67       GNUNET_process_run_command_va (ws->router_proc,
     68                                      "taler-exchange-router",
     69                                      "taler-exchange-router",
     70                                      "-c", ws->config_filename,
     71                                      "-t",   /* exit when done */
     72                                      NULL))
     73   {
     74     GNUNET_break (0);
     75     GNUNET_process_destroy (ws->router_proc);
     76     ws->router_proc = NULL;
     77     TALER_TESTING_interpreter_fail (is);
     78     return;
     79   }
     80   TALER_TESTING_wait_for_sigchld (is);
     81 }
     82 
     83 
     84 /**
     85  * Free the state of a "router" CMD, and possibly
     86  * kills its process if it did not terminate regularly.
     87  *
     88  * @param cls closure.
     89  * @param cmd the command being freed.
     90  */
     91 static void
     92 router_cleanup (void *cls,
     93                 const struct TALER_TESTING_Command *cmd)
     94 {
     95   struct RouterState *ws = cls;
     96 
     97   (void) cmd;
     98   if (NULL != ws->router_proc)
     99   {
    100     GNUNET_break (GNUNET_OK ==
    101                   GNUNET_process_kill (ws->router_proc,
    102                                        SIGKILL));
    103     GNUNET_process_wait (ws->router_proc,
    104                          true,
    105                          NULL,
    106                          NULL);
    107     GNUNET_process_destroy (ws->router_proc);
    108     ws->router_proc = NULL;
    109   }
    110   GNUNET_free (ws);
    111 }
    112 
    113 
    114 /**
    115  * Offer "router" CMD internal data to other commands.
    116  *
    117  * @param cls closure.
    118  * @param[out] ret result.
    119  * @param trait name of the trait.
    120  * @param index index number of the object to offer.
    121  * @return #GNUNET_OK on success.
    122  */
    123 static enum GNUNET_GenericReturnValue
    124 router_traits (void *cls,
    125                const void **ret,
    126                const char *trait,
    127                unsigned int index)
    128 {
    129   struct RouterState *ws = cls;
    130   struct TALER_TESTING_Trait traits[] = {
    131     TALER_TESTING_make_trait_process (&ws->router_proc),
    132     TALER_TESTING_trait_end ()
    133   };
    134 
    135   return TALER_TESTING_get_trait (traits,
    136                                   ret,
    137                                   trait,
    138                                   index);
    139 }
    140 
    141 
    142 struct TALER_TESTING_Command
    143 TALER_TESTING_cmd_exec_router (const char *label,
    144                                const char *config_filename)
    145 {
    146   struct RouterState *ws;
    147 
    148   ws = GNUNET_new (struct RouterState);
    149   ws->config_filename = config_filename;
    150 
    151   {
    152     struct TALER_TESTING_Command cmd = {
    153       .cls = ws,
    154       .label = label,
    155       .run = &router_run,
    156       .cleanup = &router_cleanup,
    157       .traits = &router_traits
    158     };
    159 
    160     return cmd;
    161   }
    162 }
    163 
    164 
    165 /* end of testing_api_cmd_exec_router.c */