From ff8349e6e7b7a898f3a9b0f69c44fa4a2a6a3fb1 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Tue, 4 Jul 2023 15:37:34 +0200
Subject: more exchange API refactoring

---
 src/lib/exchange_api_handle.h | 174 +++---------------------------------------
 1 file changed, 9 insertions(+), 165 deletions(-)

(limited to 'src/lib/exchange_api_handle.h')

diff --git a/src/lib/exchange_api_handle.h b/src/lib/exchange_api_handle.h
index 6b96e21eb..7c01b9a9f 100644
--- a/src/lib/exchange_api_handle.h
+++ b/src/lib/exchange_api_handle.h
@@ -1,6 +1,6 @@
 /*
   This file is part of TALER
-  Copyright (C) 2014, 2015 Taler Systems SA
+  Copyright (C) 2014, 2015, 2023 Taler Systems SA
 
   TALER 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
@@ -28,124 +28,6 @@
 #include "taler_util.h"
 #include "taler_curl_lib.h"
 
-/**
- * Entry in DLL of auditors used by an exchange.
- */
-struct TEAH_AuditorListEntry;
-
-
-/**
- * Stages of initialization for the `struct TALER_EXCHANGE_Handle`
- */
-enum ExchangeHandleState
-{
-  /**
-   * Just allocated.
-   */
-  MHS_INIT = 0,
-
-  /**
-   * Obtained the exchange's certification data and keys.
-   */
-  MHS_CERT = 1,
-
-  /**
-   * Failed to initialize (fatal).
-   */
-  MHS_FAILED = 2
-};
-
-
-/**
- * Handle to the exchange
- */
-struct TALER_EXCHANGE_Handle
-{
-  /**
-   * The context of this handle
-   */
-  struct GNUNET_CURL_Context *ctx;
-
-  /**
-   * The URL of the exchange (i.e. "http://exchange.taler.net/")
-   */
-  char *url;
-
-  /**
-   * Function to call with the exchange's certification data,
-   * NULL if this has already been done.
-   */
-  TALER_EXCHANGE_CertificationCallback cert_cb;
-
-  /**
-   * Closure to pass to @e cert_cb.
-   */
-  void *cert_cb_cls;
-
-  /**
-   * Data for the request to get the /keys of a exchange,
-   * NULL once we are past stage #MHS_INIT.
-   */
-  struct KeysRequest *kr;
-
-  /**
-   * Task for retrying /keys request.
-   */
-  struct GNUNET_SCHEDULER_Task *retry_task;
-
-  /**
-   * Raw key data of the exchange, only valid if
-   * @e handshake_complete is past stage #MHS_CERT.
-   */
-  json_t *key_data_raw;
-
-  /**
-   * Head of DLL of auditors of this exchange.
-   */
-  struct TEAH_AuditorListEntry *auditors_head;
-
-  /**
-   * Tail of DLL of auditors of this exchange.
-   */
-  struct TEAH_AuditorListEntry *auditors_tail;
-
-  /**
-   * Key data of the exchange, only valid if
-   * @e handshake_complete is past stage #MHS_CERT.
-   */
-  struct TALER_EXCHANGE_Keys key_data;
-
-  /**
-   * Retry /keys frequency.
-   */
-  struct GNUNET_TIME_Relative retry_delay;
-
-  /**
-   * When does @e key_data expire?
-   */
-  struct GNUNET_TIME_Timestamp key_data_expiration;
-
-  /**
-   * Number of subsequent failed requests to /keys.
-   *
-   * Used to compute the CURL timeout for the request.
-   */
-  unsigned int keys_error_count;
-
-  /**
-   * Number of subsequent failed requests to /wire.
-   *
-   * Used to compute the CURL timeout for the request.
-   */
-  unsigned int wire_error_count;
-
-  /**
-   * Stage of the exchange's initialization routines.
-   */
-  enum ExchangeHandleState state;
-
-};
-
 
 /**
  * Function called for each auditor to give us a chance to possibly
@@ -156,9 +38,10 @@ struct TALER_EXCHANGE_Handle
  * @param auditor_pub public key of the auditor
  */
 typedef void
-(*TEAH_AuditorCallback)(void *cls,
-                        const char *auditor_url,
-                        const struct TALER_AuditorPublicKeyP *auditor_pub);
+(*TEAH_AuditorCallback)(
+  void *cls,
+  const char *auditor_url,
+  const struct TALER_AuditorPublicKeyP *auditor_pub);
 
 
 /**
@@ -171,50 +54,11 @@ typedef void
  * @param ac_cls closure for @a ac
  */
 void
-TEAH_get_auditors_for_dc (struct TALER_EXCHANGE_Keys *keys,
-                          TEAH_AuditorCallback ac,
-                          void *ac_cls);
-
+TEAH_get_auditors_for_dc (
+  struct TALER_EXCHANGE_Keys *keys,
+  TEAH_AuditorCallback ac,
+  void *ac_cls);
 
-/**
- * Get the context of a exchange.
- *
- * @param h the exchange handle to query
- * @return ctx context to execute jobs in
- */
-struct GNUNET_CURL_Context *
-TEAH_handle_to_context (struct TALER_EXCHANGE_Handle *h);
-
-
-/**
- * Check if the handle is ready to process requests.
- *
- * @param h the exchange handle to query
- * @return #GNUNET_YES if we are ready, #GNUNET_NO if not
- */
-enum GNUNET_GenericReturnValue
-TEAH_handle_is_ready (struct TALER_EXCHANGE_Handle *h);
-
-/**
- * Check if the handle is ready to process requests.
- *
- * @param h the exchange handle to query
- * @return #GNUNET_YES if we are ready, #GNUNET_NO if not
- */
-enum GNUNET_GenericReturnValue
-TEAH_handle_is_ready (struct TALER_EXCHANGE_Handle *h);
-
-
-/**
- * Obtain the URL to use for an API request.
- *
- * @param h the exchange handle to query
- * @param path Taler API path (i.e. "/reserve/withdraw")
- * @return the full URL to use with cURL
- */
-char *
-TEAH_path_to_url (struct TALER_EXCHANGE_Handle *h,
-                  const char *path);
 
 /* end of exchange_api_handle.h */
 #endif
-- 
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