[taler-exchange] branch master updated: add comments

[gnunet]

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grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 74facbea add comments
74facbea is described below

commit 74facbead4d93a10248c6edf890fd8211e230229
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Thu Mar 9 19:23:53 2023 +0100

    add comments
---
 src/bank-lib/bank_api_credit.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/bank-lib/bank_api_credit.c b/src/bank-lib/bank_api_credit.c
index 9835a8c9..4842de96 100644
--- a/src/bank-lib/bank_api_credit.c
+++ b/src/bank-lib/bank_api_credit.c
@@ -248,12 +248,15 @@ TALER_BANK_credit_history (struct GNUNET_CURL_Context 
*ctx,
   {
     if ( (0 < num_results) &&
          (! GNUNET_TIME_relative_is_zero (timeout)) )
+      /* 0 == start_row is implied, go with timeout into future */
       GNUNET_snprintf (url,
                        sizeof (url),
                        "history/incoming?delta=%lld&long_poll_ms=%llu",
                        (long long) num_results,
                        tms);
     else
+      /* Going back from current transaction or have no timeout;
+         hence timeout makes no sense */
       GNUNET_snprintf (url,
                        sizeof (url),
                        "history/incoming?delta=%lld",
@@ -263,6 +266,7 @@ TALER_BANK_credit_history (struct GNUNET_CURL_Context *ctx,
   {
     if ( (0 < num_results) &&
          (! GNUNET_TIME_relative_is_zero (timeout)) )
+      /* going forward from num_result */
       GNUNET_snprintf (url,
                        sizeof (url),
                        
"history/incoming?delta=%lld&start=%llu&long_poll_ms=%llu",
@@ -270,6 +274,8 @@ TALER_BANK_credit_history (struct GNUNET_CURL_Context *ctx,
                        (unsigned long long) start_row,
                        tms);
     else
+      /* going backwards or have no timeout;
+         hence timeout makes no sense */
       GNUNET_snprintf (url,
                        sizeof (url),
                        "history/incoming?delta=%lld&start=%llu",

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